diff --git a/tools/metrics/go.mod b/tools/metrics/go.mod index 5f3b5cee93..31e2446f07 100644 --- a/tools/metrics/go.mod +++ b/tools/metrics/go.mod @@ -37,14 +37,13 @@ require ( github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect github.com/prometheus/procfs v0.6.0 // indirect github.com/satori/go.uuid v1.2.0 // indirect - golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect - golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 // indirect - golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect + golang.org/x/crypto v0.21.0 // indirect + golang.org/x/mod v0.8.0 // indirect + golang.org/x/net v0.23.0 // indirect golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 // indirect - golang.org/x/sys v0.1.0 // indirect - golang.org/x/text v0.3.7 // indirect - golang.org/x/tools v0.1.10 // indirect - golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect + golang.org/x/sys v0.18.0 // indirect + golang.org/x/text v0.14.0 // indirect + golang.org/x/tools v0.6.0 // indirect google.golang.org/appengine v1.6.1 // indirect google.golang.org/protobuf v1.26.0 // indirect gopkg.in/yaml.v2 v2.4.0 // indirect diff --git a/tools/metrics/go.sum b/tools/metrics/go.sum index ffef73fafa..338a69a840 100644 --- a/tools/metrics/go.sum +++ b/tools/metrics/go.sum @@ -156,6 +156,7 @@ github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww= github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0= github.com/sclevine/spec v1.2.0/go.mod h1:W4J29eT/Kzv7/b9IWLB055Z+qvVC9vt0Arko24q7p+U= github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8= +github.com/sclevine/spec v1.4.0/go.mod h1:LvpgJaFyvQzRvc1kaDs0bulYwzC70PbiYjC4QnFHkOM= github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo= github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE= github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88= @@ -175,10 +176,10 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= -golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg= -golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= -golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 h1:kQgndtyPBW/JIYERgdxfwMYh3AVStj88WQTlNDi2a+o= -golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3/go.mod h1:3p9vT2HGsQu2K1YbXdKPJLVgG5VJdoTa1poYQBtP1AY= +golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA= +golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs= +golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8= +golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= @@ -192,8 +193,8 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= -golang.org/x/net v0.0.0-20220225172249-27dd8689420f h1:oA4XRj0qtSt8Yo1Zms0CUlsT3KG69V2UGQWPBxujDmc= -golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk= +golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs= +golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg= golang.org/x/oauth2 v0.0.0-20190130055435-99b60b757ec1/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0= @@ -204,7 +205,8 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ= +golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o= +golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= @@ -222,18 +224,18 @@ golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U= -golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4= +golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= -golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk= -golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= +golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ= +golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190907020128-2ca718005c18/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.1.10 h1:QjFRCZxdOhBJ/UNgnBZLbNV13DlbnK0quyivTnXJM20= -golang.org/x/tools v0.1.10/go.mod h1:Uh6Zz+xoGYZom868N8YTex3t7RhtHDBrE8Gzo9bV56E= +golang.org/x/tools v0.6.0 h1:BOw41kyTf3PuCW1pVQf8+Cyg8pMlkYB1oo9iJ6D/lKM= +golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE= @@ -255,6 +257,7 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= +gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4= gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= diff --git a/tools/metrics/vendor/golang.org/x/crypto/AUTHORS b/tools/metrics/vendor/golang.org/x/crypto/AUTHORS deleted file mode 100644 index 2b00ddba0d..0000000000 --- a/tools/metrics/vendor/golang.org/x/crypto/AUTHORS +++ /dev/null @@ -1,3 +0,0 @@ -# This source code refers to The Go Authors for copyright purposes. -# The master list of authors is in the main Go distribution, -# visible at https://tip.golang.org/AUTHORS. diff --git a/tools/metrics/vendor/golang.org/x/crypto/CONTRIBUTORS b/tools/metrics/vendor/golang.org/x/crypto/CONTRIBUTORS deleted file mode 100644 index 1fbd3e976f..0000000000 --- a/tools/metrics/vendor/golang.org/x/crypto/CONTRIBUTORS +++ /dev/null @@ -1,3 +0,0 @@ -# This source code was written by the Go contributors. -# The master list of contributors is in the main Go distribution, -# visible at https://tip.golang.org/CONTRIBUTORS. diff --git a/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519.go b/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519.go index 71ad917dad..a7828345fc 100644 --- a/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519.go +++ b/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519.go @@ -1,13 +1,7 @@ -// Copyright 2016 The Go Authors. All rights reserved. +// Copyright 2019 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// In Go 1.13, the ed25519 package was promoted to the standard library as -// crypto/ed25519, and this package became a wrapper for the standard library one. -// -//go:build !go1.13 -// +build !go1.13 - // Package ed25519 implements the Ed25519 signature algorithm. See // https://ed25519.cr.yp.to/. // @@ -16,21 +10,15 @@ // representation includes a public key suffix to make multiple signing // operations with the same key more efficient. This package refers to the RFC // 8032 private key as the “seed”. +// +// Beginning with Go 1.13, the functionality of this package was moved to the +// standard library as crypto/ed25519. This package only acts as a compatibility +// wrapper. package ed25519 -// This code is a port of the public domain, “ref10” implementation of ed25519 -// from SUPERCOP. - import ( - "bytes" - "crypto" - cryptorand "crypto/rand" - "crypto/sha512" - "errors" + "crypto/ed25519" "io" - "strconv" - - "golang.org/x/crypto/ed25519/internal/edwards25519" ) const ( @@ -45,57 +33,21 @@ const ( ) // PublicKey is the type of Ed25519 public keys. -type PublicKey []byte +// +// This type is an alias for crypto/ed25519's PublicKey type. +// See the crypto/ed25519 package for the methods on this type. +type PublicKey = ed25519.PublicKey // PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer. -type PrivateKey []byte - -// Public returns the PublicKey corresponding to priv. -func (priv PrivateKey) Public() crypto.PublicKey { - publicKey := make([]byte, PublicKeySize) - copy(publicKey, priv[32:]) - return PublicKey(publicKey) -} - -// Seed returns the private key seed corresponding to priv. It is provided for -// interoperability with RFC 8032. RFC 8032's private keys correspond to seeds -// in this package. -func (priv PrivateKey) Seed() []byte { - seed := make([]byte, SeedSize) - copy(seed, priv[:32]) - return seed -} - -// Sign signs the given message with priv. -// Ed25519 performs two passes over messages to be signed and therefore cannot -// handle pre-hashed messages. Thus opts.HashFunc() must return zero to -// indicate the message hasn't been hashed. This can be achieved by passing -// crypto.Hash(0) as the value for opts. -func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) { - if opts.HashFunc() != crypto.Hash(0) { - return nil, errors.New("ed25519: cannot sign hashed message") - } - - return Sign(priv, message), nil -} +// +// This type is an alias for crypto/ed25519's PrivateKey type. +// See the crypto/ed25519 package for the methods on this type. +type PrivateKey = ed25519.PrivateKey // GenerateKey generates a public/private key pair using entropy from rand. // If rand is nil, crypto/rand.Reader will be used. func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) { - if rand == nil { - rand = cryptorand.Reader - } - - seed := make([]byte, SeedSize) - if _, err := io.ReadFull(rand, seed); err != nil { - return nil, nil, err - } - - privateKey := NewKeyFromSeed(seed) - publicKey := make([]byte, PublicKeySize) - copy(publicKey, privateKey[32:]) - - return publicKey, privateKey, nil + return ed25519.GenerateKey(rand) } // NewKeyFromSeed calculates a private key from a seed. It will panic if @@ -103,121 +55,17 @@ func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) { // with RFC 8032. RFC 8032's private keys correspond to seeds in this // package. func NewKeyFromSeed(seed []byte) PrivateKey { - if l := len(seed); l != SeedSize { - panic("ed25519: bad seed length: " + strconv.Itoa(l)) - } - - digest := sha512.Sum512(seed) - digest[0] &= 248 - digest[31] &= 127 - digest[31] |= 64 - - var A edwards25519.ExtendedGroupElement - var hBytes [32]byte - copy(hBytes[:], digest[:]) - edwards25519.GeScalarMultBase(&A, &hBytes) - var publicKeyBytes [32]byte - A.ToBytes(&publicKeyBytes) - - privateKey := make([]byte, PrivateKeySize) - copy(privateKey, seed) - copy(privateKey[32:], publicKeyBytes[:]) - - return privateKey + return ed25519.NewKeyFromSeed(seed) } // Sign signs the message with privateKey and returns a signature. It will // panic if len(privateKey) is not PrivateKeySize. func Sign(privateKey PrivateKey, message []byte) []byte { - if l := len(privateKey); l != PrivateKeySize { - panic("ed25519: bad private key length: " + strconv.Itoa(l)) - } - - h := sha512.New() - h.Write(privateKey[:32]) - - var digest1, messageDigest, hramDigest [64]byte - var expandedSecretKey [32]byte - h.Sum(digest1[:0]) - copy(expandedSecretKey[:], digest1[:]) - expandedSecretKey[0] &= 248 - expandedSecretKey[31] &= 63 - expandedSecretKey[31] |= 64 - - h.Reset() - h.Write(digest1[32:]) - h.Write(message) - h.Sum(messageDigest[:0]) - - var messageDigestReduced [32]byte - edwards25519.ScReduce(&messageDigestReduced, &messageDigest) - var R edwards25519.ExtendedGroupElement - edwards25519.GeScalarMultBase(&R, &messageDigestReduced) - - var encodedR [32]byte - R.ToBytes(&encodedR) - - h.Reset() - h.Write(encodedR[:]) - h.Write(privateKey[32:]) - h.Write(message) - h.Sum(hramDigest[:0]) - var hramDigestReduced [32]byte - edwards25519.ScReduce(&hramDigestReduced, &hramDigest) - - var s [32]byte - edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced) - - signature := make([]byte, SignatureSize) - copy(signature[:], encodedR[:]) - copy(signature[32:], s[:]) - - return signature + return ed25519.Sign(privateKey, message) } // Verify reports whether sig is a valid signature of message by publicKey. It // will panic if len(publicKey) is not PublicKeySize. func Verify(publicKey PublicKey, message, sig []byte) bool { - if l := len(publicKey); l != PublicKeySize { - panic("ed25519: bad public key length: " + strconv.Itoa(l)) - } - - if len(sig) != SignatureSize || sig[63]&224 != 0 { - return false - } - - var A edwards25519.ExtendedGroupElement - var publicKeyBytes [32]byte - copy(publicKeyBytes[:], publicKey) - if !A.FromBytes(&publicKeyBytes) { - return false - } - edwards25519.FeNeg(&A.X, &A.X) - edwards25519.FeNeg(&A.T, &A.T) - - h := sha512.New() - h.Write(sig[:32]) - h.Write(publicKey[:]) - h.Write(message) - var digest [64]byte - h.Sum(digest[:0]) - - var hReduced [32]byte - edwards25519.ScReduce(&hReduced, &digest) - - var R edwards25519.ProjectiveGroupElement - var s [32]byte - copy(s[:], sig[32:]) - - // https://tools.ietf.org/html/rfc8032#section-5.1.7 requires that s be in - // the range [0, order) in order to prevent signature malleability. - if !edwards25519.ScMinimal(&s) { - return false - } - - edwards25519.GeDoubleScalarMultVartime(&R, &hReduced, &A, &s) - - var checkR [32]byte - R.ToBytes(&checkR) - return bytes.Equal(sig[:32], checkR[:]) + return ed25519.Verify(publicKey, message, sig) } diff --git a/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519_go113.go b/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519_go113.go deleted file mode 100644 index b5974dc8b2..0000000000 --- a/tools/metrics/vendor/golang.org/x/crypto/ed25519/ed25519_go113.go +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build go1.13 -// +build go1.13 - -// Package ed25519 implements the Ed25519 signature algorithm. See -// https://ed25519.cr.yp.to/. -// -// These functions are also compatible with the “Ed25519” function defined in -// RFC 8032. However, unlike RFC 8032's formulation, this package's private key -// representation includes a public key suffix to make multiple signing -// operations with the same key more efficient. This package refers to the RFC -// 8032 private key as the “seed”. -// -// Beginning with Go 1.13, the functionality of this package was moved to the -// standard library as crypto/ed25519. This package only acts as a compatibility -// wrapper. -package ed25519 - -import ( - "crypto/ed25519" - "io" -) - -const ( - // PublicKeySize is the size, in bytes, of public keys as used in this package. - PublicKeySize = 32 - // PrivateKeySize is the size, in bytes, of private keys as used in this package. - PrivateKeySize = 64 - // SignatureSize is the size, in bytes, of signatures generated and verified by this package. - SignatureSize = 64 - // SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032. - SeedSize = 32 -) - -// PublicKey is the type of Ed25519 public keys. -// -// This type is an alias for crypto/ed25519's PublicKey type. -// See the crypto/ed25519 package for the methods on this type. -type PublicKey = ed25519.PublicKey - -// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer. -// -// This type is an alias for crypto/ed25519's PrivateKey type. -// See the crypto/ed25519 package for the methods on this type. -type PrivateKey = ed25519.PrivateKey - -// GenerateKey generates a public/private key pair using entropy from rand. -// If rand is nil, crypto/rand.Reader will be used. -func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) { - return ed25519.GenerateKey(rand) -} - -// NewKeyFromSeed calculates a private key from a seed. It will panic if -// len(seed) is not SeedSize. This function is provided for interoperability -// with RFC 8032. RFC 8032's private keys correspond to seeds in this -// package. -func NewKeyFromSeed(seed []byte) PrivateKey { - return ed25519.NewKeyFromSeed(seed) -} - -// Sign signs the message with privateKey and returns a signature. It will -// panic if len(privateKey) is not PrivateKeySize. -func Sign(privateKey PrivateKey, message []byte) []byte { - return ed25519.Sign(privateKey, message) -} - -// Verify reports whether sig is a valid signature of message by publicKey. It -// will panic if len(publicKey) is not PublicKeySize. -func Verify(publicKey PublicKey, message, sig []byte) bool { - return ed25519.Verify(publicKey, message, sig) -} diff --git a/tools/metrics/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go b/tools/metrics/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go deleted file mode 100644 index e39f086c1d..0000000000 --- a/tools/metrics/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go +++ /dev/null @@ -1,1422 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package edwards25519 - -// These values are from the public domain, “ref10” implementation of ed25519 -// from SUPERCOP. - -// d is a constant in the Edwards curve equation. -var d = FieldElement{ - -10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116, -} - -// d2 is 2*d. -var d2 = FieldElement{ - -21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199, -} - -// SqrtM1 is the square-root of -1 in the field. -var SqrtM1 = FieldElement{ - -32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482, -} - -// A is a constant in the Montgomery-form of curve25519. -var A = FieldElement{ - 486662, 0, 0, 0, 0, 0, 0, 0, 0, 0, -} - -// bi contains precomputed multiples of the base-point. See the Ed25519 paper -// for a discussion about how these values are used. -var bi = [8]PreComputedGroupElement{ - { - FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605}, - FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378}, - FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546}, - }, - { - FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024}, - FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574}, - FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357}, - }, - { - FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380}, - FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306}, - FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942}, - }, - { - FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766}, - FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701}, - FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300}, - }, - { - FieldElement{-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877}, - FieldElement{-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951}, - FieldElement{4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784}, - }, - { - FieldElement{-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436}, - FieldElement{25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918}, - FieldElement{23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877}, - }, - { - FieldElement{-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800}, - FieldElement{-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305}, - FieldElement{-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300}, - }, - { - FieldElement{-3151181, -5046075, 9282714, 6866145, -31907062, -863023, -18940575, 15033784, 25105118, -7894876}, - FieldElement{-24326370, 15950226, -31801215, -14592823, -11662737, -5090925, 1573892, -2625887, 2198790, -15804619}, - FieldElement{-3099351, 10324967, -2241613, 7453183, -5446979, -2735503, -13812022, -16236442, -32461234, -12290683}, - }, -} - -// base contains precomputed multiples of the base-point. See the Ed25519 paper -// for a discussion about how these values are used. -var base = [32][8]PreComputedGroupElement{ - { - { - FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605}, - FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378}, - FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546}, - }, - { - FieldElement{-12815894, -12976347, -21581243, 11784320, -25355658, -2750717, -11717903, -3814571, -358445, -10211303}, - FieldElement{-21703237, 6903825, 27185491, 6451973, -29577724, -9554005, -15616551, 11189268, -26829678, -5319081}, - FieldElement{26966642, 11152617, 32442495, 15396054, 14353839, -12752335, -3128826, -9541118, -15472047, -4166697}, - }, - { - FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024}, - FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574}, - FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357}, - }, - { - FieldElement{-17036878, 13921892, 10945806, -6033431, 27105052, -16084379, -28926210, 15006023, 3284568, -6276540}, - FieldElement{23599295, -8306047, -11193664, -7687416, 13236774, 10506355, 7464579, 9656445, 13059162, 10374397}, - FieldElement{7798556, 16710257, 3033922, 2874086, 28997861, 2835604, 32406664, -3839045, -641708, -101325}, - }, - { - FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380}, - FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306}, - FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942}, - }, - { - FieldElement{-15371964, -12862754, 32573250, 4720197, -26436522, 5875511, -19188627, -15224819, -9818940, -12085777}, - FieldElement{-8549212, 109983, 15149363, 2178705, 22900618, 4543417, 3044240, -15689887, 1762328, 14866737}, - FieldElement{-18199695, -15951423, -10473290, 1707278, -17185920, 3916101, -28236412, 3959421, 27914454, 4383652}, - }, - { - FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766}, - FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701}, - FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300}, - }, - { - FieldElement{14499471, -2729599, -33191113, -4254652, 28494862, 14271267, 30290735, 10876454, -33154098, 2381726}, - FieldElement{-7195431, -2655363, -14730155, 462251, -27724326, 3941372, -6236617, 3696005, -32300832, 15351955}, - FieldElement{27431194, 8222322, 16448760, -3907995, -18707002, 11938355, -32961401, -2970515, 29551813, 10109425}, - }, - }, - { - { - FieldElement{-13657040, -13155431, -31283750, 11777098, 21447386, 6519384, -2378284, -1627556, 10092783, -4764171}, - FieldElement{27939166, 14210322, 4677035, 16277044, -22964462, -12398139, -32508754, 12005538, -17810127, 12803510}, - FieldElement{17228999, -15661624, -1233527, 300140, -1224870, -11714777, 30364213, -9038194, 18016357, 4397660}, - }, - { - FieldElement{-10958843, -7690207, 4776341, -14954238, 27850028, -15602212, -26619106, 14544525, -17477504, 982639}, - FieldElement{29253598, 15796703, -2863982, -9908884, 10057023, 3163536, 7332899, -4120128, -21047696, 9934963}, - FieldElement{5793303, 16271923, -24131614, -10116404, 29188560, 1206517, -14747930, 4559895, -30123922, -10897950}, - }, - { - FieldElement{-27643952, -11493006, 16282657, -11036493, 28414021, -15012264, 24191034, 4541697, -13338309, 5500568}, - FieldElement{12650548, -1497113, 9052871, 11355358, -17680037, -8400164, -17430592, 12264343, 10874051, 13524335}, - FieldElement{25556948, -3045990, 714651, 2510400, 23394682, -10415330, 33119038, 5080568, -22528059, 5376628}, - }, - { - FieldElement{-26088264, -4011052, -17013699, -3537628, -6726793, 1920897, -22321305, -9447443, 4535768, 1569007}, - FieldElement{-2255422, 14606630, -21692440, -8039818, 28430649, 8775819, -30494562, 3044290, 31848280, 12543772}, - FieldElement{-22028579, 2943893, -31857513, 6777306, 13784462, -4292203, -27377195, -2062731, 7718482, 14474653}, - }, - { - FieldElement{2385315, 2454213, -22631320, 46603, -4437935, -15680415, 656965, -7236665, 24316168, -5253567}, - FieldElement{13741529, 10911568, -33233417, -8603737, -20177830, -1033297, 33040651, -13424532, -20729456, 8321686}, - FieldElement{21060490, -2212744, 15712757, -4336099, 1639040, 10656336, 23845965, -11874838, -9984458, 608372}, - }, - { - FieldElement{-13672732, -15087586, -10889693, -7557059, -6036909, 11305547, 1123968, -6780577, 27229399, 23887}, - FieldElement{-23244140, -294205, -11744728, 14712571, -29465699, -2029617, 12797024, -6440308, -1633405, 16678954}, - FieldElement{-29500620, 4770662, -16054387, 14001338, 7830047, 9564805, -1508144, -4795045, -17169265, 4904953}, - }, - { - FieldElement{24059557, 14617003, 19037157, -15039908, 19766093, -14906429, 5169211, 16191880, 2128236, -4326833}, - FieldElement{-16981152, 4124966, -8540610, -10653797, 30336522, -14105247, -29806336, 916033, -6882542, -2986532}, - FieldElement{-22630907, 12419372, -7134229, -7473371, -16478904, 16739175, 285431, 2763829, 15736322, 4143876}, - }, - { - FieldElement{2379352, 11839345, -4110402, -5988665, 11274298, 794957, 212801, -14594663, 23527084, -16458268}, - FieldElement{33431127, -11130478, -17838966, -15626900, 8909499, 8376530, -32625340, 4087881, -15188911, -14416214}, - FieldElement{1767683, 7197987, -13205226, -2022635, -13091350, 448826, 5799055, 4357868, -4774191, -16323038}, - }, - }, - { - { - FieldElement{6721966, 13833823, -23523388, -1551314, 26354293, -11863321, 23365147, -3949732, 7390890, 2759800}, - FieldElement{4409041, 2052381, 23373853, 10530217, 7676779, -12885954, 21302353, -4264057, 1244380, -12919645}, - FieldElement{-4421239, 7169619, 4982368, -2957590, 30256825, -2777540, 14086413, 9208236, 15886429, 16489664}, - }, - { - FieldElement{1996075, 10375649, 14346367, 13311202, -6874135, -16438411, -13693198, 398369, -30606455, -712933}, - FieldElement{-25307465, 9795880, -2777414, 14878809, -33531835, 14780363, 13348553, 12076947, -30836462, 5113182}, - FieldElement{-17770784, 11797796, 31950843, 13929123, -25888302, 12288344, -30341101, -7336386, 13847711, 5387222}, - }, - { - FieldElement{-18582163, -3416217, 17824843, -2340966, 22744343, -10442611, 8763061, 3617786, -19600662, 10370991}, - FieldElement{20246567, -14369378, 22358229, -543712, 18507283, -10413996, 14554437, -8746092, 32232924, 16763880}, - FieldElement{9648505, 10094563, 26416693, 14745928, -30374318, -6472621, 11094161, 15689506, 3140038, -16510092}, - }, - { - FieldElement{-16160072, 5472695, 31895588, 4744994, 8823515, 10365685, -27224800, 9448613, -28774454, 366295}, - FieldElement{19153450, 11523972, -11096490, -6503142, -24647631, 5420647, 28344573, 8041113, 719605, 11671788}, - FieldElement{8678025, 2694440, -6808014, 2517372, 4964326, 11152271, -15432916, -15266516, 27000813, -10195553}, - }, - { - FieldElement{-15157904, 7134312, 8639287, -2814877, -7235688, 10421742, 564065, 5336097, 6750977, -14521026}, - FieldElement{11836410, -3979488, 26297894, 16080799, 23455045, 15735944, 1695823, -8819122, 8169720, 16220347}, - FieldElement{-18115838, 8653647, 17578566, -6092619, -8025777, -16012763, -11144307, -2627664, -5990708, -14166033}, - }, - { - FieldElement{-23308498, -10968312, 15213228, -10081214, -30853605, -11050004, 27884329, 2847284, 2655861, 1738395}, - FieldElement{-27537433, -14253021, -25336301, -8002780, -9370762, 8129821, 21651608, -3239336, -19087449, -11005278}, - FieldElement{1533110, 3437855, 23735889, 459276, 29970501, 11335377, 26030092, 5821408, 10478196, 8544890}, - }, - { - FieldElement{32173121, -16129311, 24896207, 3921497, 22579056, -3410854, 19270449, 12217473, 17789017, -3395995}, - FieldElement{-30552961, -2228401, -15578829, -10147201, 13243889, 517024, 15479401, -3853233, 30460520, 1052596}, - FieldElement{-11614875, 13323618, 32618793, 8175907, -15230173, 12596687, 27491595, -4612359, 3179268, -9478891}, - }, - { - FieldElement{31947069, -14366651, -4640583, -15339921, -15125977, -6039709, -14756777, -16411740, 19072640, -9511060}, - FieldElement{11685058, 11822410, 3158003, -13952594, 33402194, -4165066, 5977896, -5215017, 473099, 5040608}, - FieldElement{-20290863, 8198642, -27410132, 11602123, 1290375, -2799760, 28326862, 1721092, -19558642, -3131606}, - }, - }, - { - { - FieldElement{7881532, 10687937, 7578723, 7738378, -18951012, -2553952, 21820786, 8076149, -27868496, 11538389}, - FieldElement{-19935666, 3899861, 18283497, -6801568, -15728660, -11249211, 8754525, 7446702, -5676054, 5797016}, - FieldElement{-11295600, -3793569, -15782110, -7964573, 12708869, -8456199, 2014099, -9050574, -2369172, -5877341}, - }, - { - FieldElement{-22472376, -11568741, -27682020, 1146375, 18956691, 16640559, 1192730, -3714199, 15123619, 10811505}, - FieldElement{14352098, -3419715, -18942044, 10822655, 32750596, 4699007, -70363, 15776356, -28886779, -11974553}, - FieldElement{-28241164, -8072475, -4978962, -5315317, 29416931, 1847569, -20654173, -16484855, 4714547, -9600655}, - }, - { - FieldElement{15200332, 8368572, 19679101, 15970074, -31872674, 1959451, 24611599, -4543832, -11745876, 12340220}, - FieldElement{12876937, -10480056, 33134381, 6590940, -6307776, 14872440, 9613953, 8241152, 15370987, 9608631}, - 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FieldElement{33338237, -8505733, 12532113, 7977527, 9106186, -1715251, -17720195, -4612972, -4451357, -14669444}, - }, - { - FieldElement{-20045281, 5454097, -14346548, 6447146, 28862071, 1883651, -2469266, -4141880, 7770569, 9620597}, - FieldElement{23208068, 7979712, 33071466, 8149229, 1758231, -10834995, 30945528, -1694323, -33502340, -14767970}, - FieldElement{1439958, -16270480, -1079989, -793782, 4625402, 10647766, -5043801, 1220118, 30494170, -11440799}, - }, - { - FieldElement{-5037580, -13028295, -2970559, -3061767, 15640974, -6701666, -26739026, 926050, -1684339, -13333647}, - FieldElement{13908495, -3549272, 30919928, -6273825, -21521863, 7989039, 9021034, 9078865, 3353509, 4033511}, - FieldElement{-29663431, -15113610, 32259991, -344482, 24295849, -12912123, 23161163, 8839127, 27485041, 7356032}, - }, - }, - { - { - FieldElement{9661027, 705443, 11980065, -5370154, -1628543, 14661173, -6346142, 2625015, 28431036, -16771834}, - FieldElement{-23839233, -8311415, -25945511, 7480958, -17681669, -8354183, -22545972, 14150565, 15970762, 4099461}, - FieldElement{29262576, 16756590, 26350592, -8793563, 8529671, -11208050, 13617293, -9937143, 11465739, 8317062}, - }, - { - FieldElement{-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516}, - FieldElement{-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547}, - FieldElement{-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240}, - }, - { - FieldElement{-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038}, - FieldElement{-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741}, - FieldElement{16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103}, - }, - { - FieldElement{-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747}, - FieldElement{-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323}, - FieldElement{31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016}, - }, - { - FieldElement{-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373}, - FieldElement{15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228}, - FieldElement{-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141}, - }, - { - FieldElement{16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399}, - FieldElement{11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831}, - FieldElement{-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376}, - }, - { - FieldElement{-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313}, - FieldElement{-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958}, - FieldElement{-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577}, - }, - { - FieldElement{-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743}, - FieldElement{29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684}, - FieldElement{-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476}, - }, - }, -} diff --git a/tools/metrics/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go b/tools/metrics/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go deleted file mode 100644 index fd03c252af..0000000000 --- a/tools/metrics/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go +++ /dev/null @@ -1,1793 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package edwards25519 - -import "encoding/binary" - -// This code is a port of the public domain, “ref10” implementation of ed25519 -// from SUPERCOP. - -// FieldElement represents an element of the field GF(2^255 - 19). An element -// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77 -// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on -// context. -type FieldElement [10]int32 - -var zero FieldElement - -func FeZero(fe *FieldElement) { - copy(fe[:], zero[:]) -} - -func FeOne(fe *FieldElement) { - FeZero(fe) - fe[0] = 1 -} - -func FeAdd(dst, a, b *FieldElement) { - dst[0] = a[0] + b[0] - dst[1] = a[1] + b[1] - dst[2] = a[2] + b[2] - dst[3] = a[3] + b[3] - dst[4] = a[4] + b[4] - dst[5] = a[5] + b[5] - dst[6] = a[6] + b[6] - dst[7] = a[7] + b[7] - dst[8] = a[8] + b[8] - dst[9] = a[9] + b[9] -} - -func FeSub(dst, a, b *FieldElement) { - dst[0] = a[0] - b[0] - dst[1] = a[1] - b[1] - dst[2] = a[2] - b[2] - dst[3] = a[3] - b[3] - dst[4] = a[4] - b[4] - dst[5] = a[5] - b[5] - dst[6] = a[6] - b[6] - dst[7] = a[7] - b[7] - dst[8] = a[8] - b[8] - dst[9] = a[9] - b[9] -} - -func FeCopy(dst, src *FieldElement) { - copy(dst[:], src[:]) -} - -// Replace (f,g) with (g,g) if b == 1; -// replace (f,g) with (f,g) if b == 0. -// -// Preconditions: b in {0,1}. -func FeCMove(f, g *FieldElement, b int32) { - b = -b - f[0] ^= b & (f[0] ^ g[0]) - f[1] ^= b & (f[1] ^ g[1]) - f[2] ^= b & (f[2] ^ g[2]) - f[3] ^= b & (f[3] ^ g[3]) - f[4] ^= b & (f[4] ^ g[4]) - f[5] ^= b & (f[5] ^ g[5]) - f[6] ^= b & (f[6] ^ g[6]) - f[7] ^= b & (f[7] ^ g[7]) - f[8] ^= b & (f[8] ^ g[8]) - f[9] ^= b & (f[9] ^ g[9]) -} - -func load3(in []byte) int64 { - var r int64 - r = int64(in[0]) - r |= int64(in[1]) << 8 - r |= int64(in[2]) << 16 - return r -} - -func load4(in []byte) int64 { - var r int64 - r = int64(in[0]) - r |= int64(in[1]) << 8 - r |= int64(in[2]) << 16 - r |= int64(in[3]) << 24 - return r -} - -func FeFromBytes(dst *FieldElement, src *[32]byte) { - h0 := load4(src[:]) - h1 := load3(src[4:]) << 6 - h2 := load3(src[7:]) << 5 - h3 := load3(src[10:]) << 3 - h4 := load3(src[13:]) << 2 - h5 := load4(src[16:]) - h6 := load3(src[20:]) << 7 - h7 := load3(src[23:]) << 5 - h8 := load3(src[26:]) << 4 - h9 := (load3(src[29:]) & 8388607) << 2 - - FeCombine(dst, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) -} - -// FeToBytes marshals h to s. -// Preconditions: -// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. -// -// Write p=2^255-19; q=floor(h/p). -// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))). -// -// Proof: -// Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4. -// Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4. -// -// Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9). -// Then 0> 25 - q = (h[0] + q) >> 26 - q = (h[1] + q) >> 25 - q = (h[2] + q) >> 26 - q = (h[3] + q) >> 25 - q = (h[4] + q) >> 26 - q = (h[5] + q) >> 25 - q = (h[6] + q) >> 26 - q = (h[7] + q) >> 25 - q = (h[8] + q) >> 26 - q = (h[9] + q) >> 25 - - // Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20. - h[0] += 19 * q - // Goal: Output h-2^255 q, which is between 0 and 2^255-20. - - carry[0] = h[0] >> 26 - h[1] += carry[0] - h[0] -= carry[0] << 26 - carry[1] = h[1] >> 25 - h[2] += carry[1] - h[1] -= carry[1] << 25 - carry[2] = h[2] >> 26 - h[3] += carry[2] - h[2] -= carry[2] << 26 - carry[3] = h[3] >> 25 - h[4] += carry[3] - h[3] -= carry[3] << 25 - carry[4] = h[4] >> 26 - h[5] += carry[4] - h[4] -= carry[4] << 26 - carry[5] = h[5] >> 25 - h[6] += carry[5] - h[5] -= carry[5] << 25 - carry[6] = h[6] >> 26 - h[7] += carry[6] - h[6] -= carry[6] << 26 - carry[7] = h[7] >> 25 - h[8] += carry[7] - h[7] -= carry[7] << 25 - carry[8] = h[8] >> 26 - h[9] += carry[8] - h[8] -= carry[8] << 26 - carry[9] = h[9] >> 25 - h[9] -= carry[9] << 25 - // h10 = carry9 - - // Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20. - // Have h[0]+...+2^230 h[9] between 0 and 2^255-1; - // evidently 2^255 h10-2^255 q = 0. - // Goal: Output h[0]+...+2^230 h[9]. - - s[0] = byte(h[0] >> 0) - s[1] = byte(h[0] >> 8) - s[2] = byte(h[0] >> 16) - s[3] = byte((h[0] >> 24) | (h[1] << 2)) - s[4] = byte(h[1] >> 6) - s[5] = byte(h[1] >> 14) - s[6] = byte((h[1] >> 22) | (h[2] << 3)) - s[7] = byte(h[2] >> 5) - s[8] = byte(h[2] >> 13) - s[9] = byte((h[2] >> 21) | (h[3] << 5)) - s[10] = byte(h[3] >> 3) - s[11] = byte(h[3] >> 11) - s[12] = byte((h[3] >> 19) | (h[4] << 6)) - s[13] = byte(h[4] >> 2) - s[14] = byte(h[4] >> 10) - s[15] = byte(h[4] >> 18) - s[16] = byte(h[5] >> 0) - s[17] = byte(h[5] >> 8) - s[18] = byte(h[5] >> 16) - s[19] = byte((h[5] >> 24) | (h[6] << 1)) - s[20] = byte(h[6] >> 7) - s[21] = byte(h[6] >> 15) - s[22] = byte((h[6] >> 23) | (h[7] << 3)) - s[23] = byte(h[7] >> 5) - s[24] = byte(h[7] >> 13) - s[25] = byte((h[7] >> 21) | (h[8] << 4)) - s[26] = byte(h[8] >> 4) - s[27] = byte(h[8] >> 12) - s[28] = byte((h[8] >> 20) | (h[9] << 6)) - s[29] = byte(h[9] >> 2) - s[30] = byte(h[9] >> 10) - s[31] = byte(h[9] >> 18) -} - -func FeIsNegative(f *FieldElement) byte { - var s [32]byte - FeToBytes(&s, f) - return s[0] & 1 -} - -func FeIsNonZero(f *FieldElement) int32 { - var s [32]byte - FeToBytes(&s, f) - var x uint8 - for _, b := range s { - x |= b - } - x |= x >> 4 - x |= x >> 2 - x |= x >> 1 - return int32(x & 1) -} - -// FeNeg sets h = -f -// -// Preconditions: -// |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. -// -// Postconditions: -// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. -func FeNeg(h, f *FieldElement) { - h[0] = -f[0] - h[1] = -f[1] - h[2] = -f[2] - h[3] = -f[3] - h[4] = -f[4] - h[5] = -f[5] - h[6] = -f[6] - h[7] = -f[7] - h[8] = -f[8] - h[9] = -f[9] -} - -func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) { - var c0, c1, c2, c3, c4, c5, c6, c7, c8, c9 int64 - - /* - |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38)) - i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8 - |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19)) - i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9 - */ - - c0 = (h0 + (1 << 25)) >> 26 - h1 += c0 - h0 -= c0 << 26 - c4 = (h4 + (1 << 25)) >> 26 - h5 += c4 - h4 -= c4 << 26 - /* |h0| <= 2^25 */ - /* |h4| <= 2^25 */ - /* |h1| <= 1.51*2^58 */ - /* |h5| <= 1.51*2^58 */ - - c1 = (h1 + (1 << 24)) >> 25 - h2 += c1 - h1 -= c1 << 25 - c5 = (h5 + (1 << 24)) >> 25 - h6 += c5 - h5 -= c5 << 25 - /* |h1| <= 2^24; from now on fits into int32 */ - /* |h5| <= 2^24; from now on fits into int32 */ - /* |h2| <= 1.21*2^59 */ - /* |h6| <= 1.21*2^59 */ - - c2 = (h2 + (1 << 25)) >> 26 - h3 += c2 - h2 -= c2 << 26 - c6 = (h6 + (1 << 25)) >> 26 - h7 += c6 - h6 -= c6 << 26 - /* |h2| <= 2^25; from now on fits into int32 unchanged */ - /* |h6| <= 2^25; from now on fits into int32 unchanged */ - /* |h3| <= 1.51*2^58 */ - /* |h7| <= 1.51*2^58 */ - - c3 = (h3 + (1 << 24)) >> 25 - h4 += c3 - h3 -= c3 << 25 - c7 = (h7 + (1 << 24)) >> 25 - h8 += c7 - h7 -= c7 << 25 - /* |h3| <= 2^24; from now on fits into int32 unchanged */ - /* |h7| <= 2^24; from now on fits into int32 unchanged */ - /* |h4| <= 1.52*2^33 */ - /* |h8| <= 1.52*2^33 */ - - c4 = (h4 + (1 << 25)) >> 26 - h5 += c4 - h4 -= c4 << 26 - c8 = (h8 + (1 << 25)) >> 26 - h9 += c8 - h8 -= c8 << 26 - /* |h4| <= 2^25; from now on fits into int32 unchanged */ - /* |h8| <= 2^25; from now on fits into int32 unchanged */ - /* |h5| <= 1.01*2^24 */ - /* |h9| <= 1.51*2^58 */ - - c9 = (h9 + (1 << 24)) >> 25 - h0 += c9 * 19 - h9 -= c9 << 25 - /* |h9| <= 2^24; from now on fits into int32 unchanged */ - /* |h0| <= 1.8*2^37 */ - - c0 = (h0 + (1 << 25)) >> 26 - h1 += c0 - h0 -= c0 << 26 - /* |h0| <= 2^25; from now on fits into int32 unchanged */ - /* |h1| <= 1.01*2^24 */ - - h[0] = int32(h0) - h[1] = int32(h1) - h[2] = int32(h2) - h[3] = int32(h3) - h[4] = int32(h4) - h[5] = int32(h5) - h[6] = int32(h6) - h[7] = int32(h7) - h[8] = int32(h8) - h[9] = int32(h9) -} - -// FeMul calculates h = f * g -// Can overlap h with f or g. -// -// Preconditions: -// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. -// |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. -// -// Postconditions: -// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. -// -// Notes on implementation strategy: -// -// Using schoolbook multiplication. -// Karatsuba would save a little in some cost models. -// -// Most multiplications by 2 and 19 are 32-bit precomputations; -// cheaper than 64-bit postcomputations. -// -// There is one remaining multiplication by 19 in the carry chain; -// one *19 precomputation can be merged into this, -// but the resulting data flow is considerably less clean. -// -// There are 12 carries below. -// 10 of them are 2-way parallelizable and vectorizable. -// Can get away with 11 carries, but then data flow is much deeper. -// -// With tighter constraints on inputs, can squeeze carries into int32. -func FeMul(h, f, g *FieldElement) { - f0 := int64(f[0]) - f1 := int64(f[1]) - f2 := int64(f[2]) - f3 := int64(f[3]) - f4 := int64(f[4]) - f5 := int64(f[5]) - f6 := int64(f[6]) - f7 := int64(f[7]) - f8 := int64(f[8]) - f9 := int64(f[9]) - - f1_2 := int64(2 * f[1]) - f3_2 := int64(2 * f[3]) - f5_2 := int64(2 * f[5]) - f7_2 := int64(2 * f[7]) - f9_2 := int64(2 * f[9]) - - g0 := int64(g[0]) - g1 := int64(g[1]) - g2 := int64(g[2]) - g3 := int64(g[3]) - g4 := int64(g[4]) - g5 := int64(g[5]) - g6 := int64(g[6]) - g7 := int64(g[7]) - g8 := int64(g[8]) - g9 := int64(g[9]) - - g1_19 := int64(19 * g[1]) /* 1.4*2^29 */ - g2_19 := int64(19 * g[2]) /* 1.4*2^30; still ok */ - g3_19 := int64(19 * g[3]) - g4_19 := int64(19 * g[4]) - g5_19 := int64(19 * g[5]) - g6_19 := int64(19 * g[6]) - g7_19 := int64(19 * g[7]) - g8_19 := int64(19 * g[8]) - g9_19 := int64(19 * g[9]) - - h0 := f0*g0 + f1_2*g9_19 + f2*g8_19 + f3_2*g7_19 + f4*g6_19 + f5_2*g5_19 + f6*g4_19 + f7_2*g3_19 + f8*g2_19 + f9_2*g1_19 - h1 := f0*g1 + f1*g0 + f2*g9_19 + f3*g8_19 + f4*g7_19 + f5*g6_19 + f6*g5_19 + f7*g4_19 + f8*g3_19 + f9*g2_19 - h2 := f0*g2 + f1_2*g1 + f2*g0 + f3_2*g9_19 + f4*g8_19 + f5_2*g7_19 + f6*g6_19 + f7_2*g5_19 + f8*g4_19 + f9_2*g3_19 - h3 := f0*g3 + f1*g2 + f2*g1 + f3*g0 + f4*g9_19 + f5*g8_19 + f6*g7_19 + f7*g6_19 + f8*g5_19 + f9*g4_19 - h4 := f0*g4 + f1_2*g3 + f2*g2 + f3_2*g1 + f4*g0 + f5_2*g9_19 + f6*g8_19 + f7_2*g7_19 + f8*g6_19 + f9_2*g5_19 - h5 := f0*g5 + f1*g4 + f2*g3 + f3*g2 + f4*g1 + f5*g0 + f6*g9_19 + f7*g8_19 + f8*g7_19 + f9*g6_19 - h6 := f0*g6 + f1_2*g5 + f2*g4 + f3_2*g3 + f4*g2 + f5_2*g1 + f6*g0 + f7_2*g9_19 + f8*g8_19 + f9_2*g7_19 - h7 := f0*g7 + f1*g6 + f2*g5 + f3*g4 + f4*g3 + f5*g2 + f6*g1 + f7*g0 + f8*g9_19 + f9*g8_19 - h8 := f0*g8 + f1_2*g7 + f2*g6 + f3_2*g5 + f4*g4 + f5_2*g3 + f6*g2 + f7_2*g1 + f8*g0 + f9_2*g9_19 - h9 := f0*g9 + f1*g8 + f2*g7 + f3*g6 + f4*g5 + f5*g4 + f6*g3 + f7*g2 + f8*g1 + f9*g0 - - FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) -} - -func feSquare(f *FieldElement) (h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) { - f0 := int64(f[0]) - f1 := int64(f[1]) - f2 := int64(f[2]) - f3 := int64(f[3]) - f4 := int64(f[4]) - f5 := int64(f[5]) - f6 := int64(f[6]) - f7 := int64(f[7]) - f8 := int64(f[8]) - f9 := int64(f[9]) - f0_2 := int64(2 * f[0]) - f1_2 := int64(2 * f[1]) - f2_2 := int64(2 * f[2]) - f3_2 := int64(2 * f[3]) - f4_2 := int64(2 * f[4]) - f5_2 := int64(2 * f[5]) - f6_2 := int64(2 * f[6]) - f7_2 := int64(2 * f[7]) - f5_38 := 38 * f5 // 1.31*2^30 - f6_19 := 19 * f6 // 1.31*2^30 - f7_38 := 38 * f7 // 1.31*2^30 - f8_19 := 19 * f8 // 1.31*2^30 - f9_38 := 38 * f9 // 1.31*2^30 - - h0 = f0*f0 + f1_2*f9_38 + f2_2*f8_19 + f3_2*f7_38 + f4_2*f6_19 + f5*f5_38 - h1 = f0_2*f1 + f2*f9_38 + f3_2*f8_19 + f4*f7_38 + f5_2*f6_19 - h2 = f0_2*f2 + f1_2*f1 + f3_2*f9_38 + f4_2*f8_19 + f5_2*f7_38 + f6*f6_19 - h3 = f0_2*f3 + f1_2*f2 + f4*f9_38 + f5_2*f8_19 + f6*f7_38 - h4 = f0_2*f4 + f1_2*f3_2 + f2*f2 + f5_2*f9_38 + f6_2*f8_19 + f7*f7_38 - h5 = f0_2*f5 + f1_2*f4 + f2_2*f3 + f6*f9_38 + f7_2*f8_19 - h6 = f0_2*f6 + f1_2*f5_2 + f2_2*f4 + f3_2*f3 + f7_2*f9_38 + f8*f8_19 - h7 = f0_2*f7 + f1_2*f6 + f2_2*f5 + f3_2*f4 + f8*f9_38 - h8 = f0_2*f8 + f1_2*f7_2 + f2_2*f6 + f3_2*f5_2 + f4*f4 + f9*f9_38 - h9 = f0_2*f9 + f1_2*f8 + f2_2*f7 + f3_2*f6 + f4_2*f5 - - return -} - -// FeSquare calculates h = f*f. Can overlap h with f. -// -// Preconditions: -// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. -// -// Postconditions: -// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. -func FeSquare(h, f *FieldElement) { - h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f) - FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) -} - -// FeSquare2 sets h = 2 * f * f -// -// Can overlap h with f. -// -// Preconditions: -// |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. -// -// Postconditions: -// |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. -// See fe_mul.c for discussion of implementation strategy. -func FeSquare2(h, f *FieldElement) { - h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f) - - h0 += h0 - h1 += h1 - h2 += h2 - h3 += h3 - h4 += h4 - h5 += h5 - h6 += h6 - h7 += h7 - h8 += h8 - h9 += h9 - - FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) -} - -func FeInvert(out, z *FieldElement) { - var t0, t1, t2, t3 FieldElement - var i int - - FeSquare(&t0, z) // 2^1 - FeSquare(&t1, &t0) // 2^2 - for i = 1; i < 2; i++ { // 2^3 - FeSquare(&t1, &t1) - } - FeMul(&t1, z, &t1) // 2^3 + 2^0 - FeMul(&t0, &t0, &t1) // 2^3 + 2^1 + 2^0 - FeSquare(&t2, &t0) // 2^4 + 2^2 + 2^1 - FeMul(&t1, &t1, &t2) // 2^4 + 2^3 + 2^2 + 2^1 + 2^0 - FeSquare(&t2, &t1) // 5,4,3,2,1 - for i = 1; i < 5; i++ { // 9,8,7,6,5 - FeSquare(&t2, &t2) - } - FeMul(&t1, &t2, &t1) // 9,8,7,6,5,4,3,2,1,0 - FeSquare(&t2, &t1) // 10..1 - for i = 1; i < 10; i++ { // 19..10 - FeSquare(&t2, &t2) - } - FeMul(&t2, &t2, &t1) // 19..0 - FeSquare(&t3, &t2) // 20..1 - for i = 1; i < 20; i++ { // 39..20 - FeSquare(&t3, &t3) - } - FeMul(&t2, &t3, &t2) // 39..0 - FeSquare(&t2, &t2) // 40..1 - for i = 1; i < 10; i++ { // 49..10 - FeSquare(&t2, &t2) - } - FeMul(&t1, &t2, &t1) // 49..0 - FeSquare(&t2, &t1) // 50..1 - for i = 1; i < 50; i++ { // 99..50 - FeSquare(&t2, &t2) - } - FeMul(&t2, &t2, &t1) // 99..0 - FeSquare(&t3, &t2) // 100..1 - for i = 1; i < 100; i++ { // 199..100 - FeSquare(&t3, &t3) - } - FeMul(&t2, &t3, &t2) // 199..0 - FeSquare(&t2, &t2) // 200..1 - for i = 1; i < 50; i++ { // 249..50 - FeSquare(&t2, &t2) - } - FeMul(&t1, &t2, &t1) // 249..0 - FeSquare(&t1, &t1) // 250..1 - for i = 1; i < 5; i++ { // 254..5 - FeSquare(&t1, &t1) - } - FeMul(out, &t1, &t0) // 254..5,3,1,0 -} - -func fePow22523(out, z *FieldElement) { - var t0, t1, t2 FieldElement - var i int - - FeSquare(&t0, z) - for i = 1; i < 1; i++ { - FeSquare(&t0, &t0) - } - FeSquare(&t1, &t0) - for i = 1; i < 2; i++ { - FeSquare(&t1, &t1) - } - FeMul(&t1, z, &t1) - FeMul(&t0, &t0, &t1) - FeSquare(&t0, &t0) - for i = 1; i < 1; i++ { - FeSquare(&t0, &t0) - } - FeMul(&t0, &t1, &t0) - FeSquare(&t1, &t0) - for i = 1; i < 5; i++ { - FeSquare(&t1, &t1) - } - FeMul(&t0, &t1, &t0) - FeSquare(&t1, &t0) - for i = 1; i < 10; i++ { - FeSquare(&t1, &t1) - } - FeMul(&t1, &t1, &t0) - FeSquare(&t2, &t1) - for i = 1; i < 20; i++ { - FeSquare(&t2, &t2) - } - FeMul(&t1, &t2, &t1) - FeSquare(&t1, &t1) - for i = 1; i < 10; i++ { - FeSquare(&t1, &t1) - } - FeMul(&t0, &t1, &t0) - FeSquare(&t1, &t0) - for i = 1; i < 50; i++ { - FeSquare(&t1, &t1) - } - FeMul(&t1, &t1, &t0) - FeSquare(&t2, &t1) - for i = 1; i < 100; i++ { - FeSquare(&t2, &t2) - } - FeMul(&t1, &t2, &t1) - FeSquare(&t1, &t1) - for i = 1; i < 50; i++ { - FeSquare(&t1, &t1) - } - FeMul(&t0, &t1, &t0) - FeSquare(&t0, &t0) - for i = 1; i < 2; i++ { - FeSquare(&t0, &t0) - } - FeMul(out, &t0, z) -} - -// Group elements are members of the elliptic curve -x^2 + y^2 = 1 + d * x^2 * -// y^2 where d = -121665/121666. -// -// Several representations are used: -// ProjectiveGroupElement: (X:Y:Z) satisfying x=X/Z, y=Y/Z -// ExtendedGroupElement: (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT -// CompletedGroupElement: ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T -// PreComputedGroupElement: (y+x,y-x,2dxy) - -type ProjectiveGroupElement struct { - X, Y, Z FieldElement -} - -type ExtendedGroupElement struct { - X, Y, Z, T FieldElement -} - -type CompletedGroupElement struct { - X, Y, Z, T FieldElement -} - -type PreComputedGroupElement struct { - yPlusX, yMinusX, xy2d FieldElement -} - -type CachedGroupElement struct { - yPlusX, yMinusX, Z, T2d FieldElement -} - -func (p *ProjectiveGroupElement) Zero() { - FeZero(&p.X) - FeOne(&p.Y) - FeOne(&p.Z) -} - -func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement) { - var t0 FieldElement - - FeSquare(&r.X, &p.X) - FeSquare(&r.Z, &p.Y) - FeSquare2(&r.T, &p.Z) - FeAdd(&r.Y, &p.X, &p.Y) - FeSquare(&t0, &r.Y) - FeAdd(&r.Y, &r.Z, &r.X) - FeSub(&r.Z, &r.Z, &r.X) - FeSub(&r.X, &t0, &r.Y) - FeSub(&r.T, &r.T, &r.Z) -} - -func (p *ProjectiveGroupElement) ToBytes(s *[32]byte) { - var recip, x, y FieldElement - - FeInvert(&recip, &p.Z) - FeMul(&x, &p.X, &recip) - FeMul(&y, &p.Y, &recip) - FeToBytes(s, &y) - s[31] ^= FeIsNegative(&x) << 7 -} - -func (p *ExtendedGroupElement) Zero() { - FeZero(&p.X) - FeOne(&p.Y) - FeOne(&p.Z) - FeZero(&p.T) -} - -func (p *ExtendedGroupElement) Double(r *CompletedGroupElement) { - var q ProjectiveGroupElement - p.ToProjective(&q) - q.Double(r) -} - -func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement) { - FeAdd(&r.yPlusX, &p.Y, &p.X) - FeSub(&r.yMinusX, &p.Y, &p.X) - FeCopy(&r.Z, &p.Z) - FeMul(&r.T2d, &p.T, &d2) -} - -func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement) { - FeCopy(&r.X, &p.X) - FeCopy(&r.Y, &p.Y) - FeCopy(&r.Z, &p.Z) -} - -func (p *ExtendedGroupElement) ToBytes(s *[32]byte) { - var recip, x, y FieldElement - - FeInvert(&recip, &p.Z) - FeMul(&x, &p.X, &recip) - FeMul(&y, &p.Y, &recip) - FeToBytes(s, &y) - s[31] ^= FeIsNegative(&x) << 7 -} - -func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool { - var u, v, v3, vxx, check FieldElement - - FeFromBytes(&p.Y, s) - FeOne(&p.Z) - FeSquare(&u, &p.Y) - FeMul(&v, &u, &d) - FeSub(&u, &u, &p.Z) // y = y^2-1 - FeAdd(&v, &v, &p.Z) // v = dy^2+1 - - FeSquare(&v3, &v) - FeMul(&v3, &v3, &v) // v3 = v^3 - FeSquare(&p.X, &v3) - FeMul(&p.X, &p.X, &v) - FeMul(&p.X, &p.X, &u) // x = uv^7 - - fePow22523(&p.X, &p.X) // x = (uv^7)^((q-5)/8) - FeMul(&p.X, &p.X, &v3) - FeMul(&p.X, &p.X, &u) // x = uv^3(uv^7)^((q-5)/8) - - var tmpX, tmp2 [32]byte - - FeSquare(&vxx, &p.X) - FeMul(&vxx, &vxx, &v) - FeSub(&check, &vxx, &u) // vx^2-u - if FeIsNonZero(&check) == 1 { - FeAdd(&check, &vxx, &u) // vx^2+u - if FeIsNonZero(&check) == 1 { - return false - } - FeMul(&p.X, &p.X, &SqrtM1) - - FeToBytes(&tmpX, &p.X) - for i, v := range tmpX { - tmp2[31-i] = v - } - } - - if FeIsNegative(&p.X) != (s[31] >> 7) { - FeNeg(&p.X, &p.X) - } - - FeMul(&p.T, &p.X, &p.Y) - return true -} - -func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement) { - FeMul(&r.X, &p.X, &p.T) - FeMul(&r.Y, &p.Y, &p.Z) - FeMul(&r.Z, &p.Z, &p.T) -} - -func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement) { - FeMul(&r.X, &p.X, &p.T) - FeMul(&r.Y, &p.Y, &p.Z) - FeMul(&r.Z, &p.Z, &p.T) - FeMul(&r.T, &p.X, &p.Y) -} - -func (p *PreComputedGroupElement) Zero() { - FeOne(&p.yPlusX) - FeOne(&p.yMinusX) - FeZero(&p.xy2d) -} - -func geAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) { - var t0 FieldElement - - FeAdd(&r.X, &p.Y, &p.X) - FeSub(&r.Y, &p.Y, &p.X) - FeMul(&r.Z, &r.X, &q.yPlusX) - FeMul(&r.Y, &r.Y, &q.yMinusX) - FeMul(&r.T, &q.T2d, &p.T) - FeMul(&r.X, &p.Z, &q.Z) - FeAdd(&t0, &r.X, &r.X) - FeSub(&r.X, &r.Z, &r.Y) - FeAdd(&r.Y, &r.Z, &r.Y) - FeAdd(&r.Z, &t0, &r.T) - FeSub(&r.T, &t0, &r.T) -} - -func geSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) { - var t0 FieldElement - - FeAdd(&r.X, &p.Y, &p.X) - FeSub(&r.Y, &p.Y, &p.X) - FeMul(&r.Z, &r.X, &q.yMinusX) - FeMul(&r.Y, &r.Y, &q.yPlusX) - FeMul(&r.T, &q.T2d, &p.T) - FeMul(&r.X, &p.Z, &q.Z) - FeAdd(&t0, &r.X, &r.X) - FeSub(&r.X, &r.Z, &r.Y) - FeAdd(&r.Y, &r.Z, &r.Y) - FeSub(&r.Z, &t0, &r.T) - FeAdd(&r.T, &t0, &r.T) -} - -func geMixedAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) { - var t0 FieldElement - - FeAdd(&r.X, &p.Y, &p.X) - FeSub(&r.Y, &p.Y, &p.X) - FeMul(&r.Z, &r.X, &q.yPlusX) - FeMul(&r.Y, &r.Y, &q.yMinusX) - FeMul(&r.T, &q.xy2d, &p.T) - FeAdd(&t0, &p.Z, &p.Z) - FeSub(&r.X, &r.Z, &r.Y) - FeAdd(&r.Y, &r.Z, &r.Y) - FeAdd(&r.Z, &t0, &r.T) - FeSub(&r.T, &t0, &r.T) -} - -func geMixedSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) { - var t0 FieldElement - - FeAdd(&r.X, &p.Y, &p.X) - FeSub(&r.Y, &p.Y, &p.X) - FeMul(&r.Z, &r.X, &q.yMinusX) - FeMul(&r.Y, &r.Y, &q.yPlusX) - FeMul(&r.T, &q.xy2d, &p.T) - FeAdd(&t0, &p.Z, &p.Z) - FeSub(&r.X, &r.Z, &r.Y) - FeAdd(&r.Y, &r.Z, &r.Y) - FeSub(&r.Z, &t0, &r.T) - FeAdd(&r.T, &t0, &r.T) -} - -func slide(r *[256]int8, a *[32]byte) { - for i := range r { - r[i] = int8(1 & (a[i>>3] >> uint(i&7))) - } - - for i := range r { - if r[i] != 0 { - for b := 1; b <= 6 && i+b < 256; b++ { - if r[i+b] != 0 { - if r[i]+(r[i+b]<= -15 { - r[i] -= r[i+b] << uint(b) - for k := i + b; k < 256; k++ { - if r[k] == 0 { - r[k] = 1 - break - } - r[k] = 0 - } - } else { - break - } - } - } - } - } -} - -// GeDoubleScalarMultVartime sets r = a*A + b*B -// where a = a[0]+256*a[1]+...+256^31 a[31]. -// and b = b[0]+256*b[1]+...+256^31 b[31]. -// B is the Ed25519 base point (x,4/5) with x positive. -func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte) { - var aSlide, bSlide [256]int8 - var Ai [8]CachedGroupElement // A,3A,5A,7A,9A,11A,13A,15A - var t CompletedGroupElement - var u, A2 ExtendedGroupElement - var i int - - slide(&aSlide, a) - slide(&bSlide, b) - - A.ToCached(&Ai[0]) - A.Double(&t) - t.ToExtended(&A2) - - for i := 0; i < 7; i++ { - geAdd(&t, &A2, &Ai[i]) - t.ToExtended(&u) - u.ToCached(&Ai[i+1]) - } - - r.Zero() - - for i = 255; i >= 0; i-- { - if aSlide[i] != 0 || bSlide[i] != 0 { - break - } - } - - for ; i >= 0; i-- { - r.Double(&t) - - if aSlide[i] > 0 { - t.ToExtended(&u) - geAdd(&t, &u, &Ai[aSlide[i]/2]) - } else if aSlide[i] < 0 { - t.ToExtended(&u) - geSub(&t, &u, &Ai[(-aSlide[i])/2]) - } - - if bSlide[i] > 0 { - t.ToExtended(&u) - geMixedAdd(&t, &u, &bi[bSlide[i]/2]) - } else if bSlide[i] < 0 { - t.ToExtended(&u) - geMixedSub(&t, &u, &bi[(-bSlide[i])/2]) - } - - t.ToProjective(r) - } -} - -// equal returns 1 if b == c and 0 otherwise, assuming that b and c are -// non-negative. -func equal(b, c int32) int32 { - x := uint32(b ^ c) - x-- - return int32(x >> 31) -} - -// negative returns 1 if b < 0 and 0 otherwise. -func negative(b int32) int32 { - return (b >> 31) & 1 -} - -func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32) { - FeCMove(&t.yPlusX, &u.yPlusX, b) - FeCMove(&t.yMinusX, &u.yMinusX, b) - FeCMove(&t.xy2d, &u.xy2d, b) -} - -func selectPoint(t *PreComputedGroupElement, pos int32, b int32) { - var minusT PreComputedGroupElement - bNegative := negative(b) - bAbs := b - (((-bNegative) & b) << 1) - - t.Zero() - for i := int32(0); i < 8; i++ { - PreComputedGroupElementCMove(t, &base[pos][i], equal(bAbs, i+1)) - } - FeCopy(&minusT.yPlusX, &t.yMinusX) - FeCopy(&minusT.yMinusX, &t.yPlusX) - FeNeg(&minusT.xy2d, &t.xy2d) - PreComputedGroupElementCMove(t, &minusT, bNegative) -} - -// GeScalarMultBase computes h = a*B, where -// a = a[0]+256*a[1]+...+256^31 a[31] -// B is the Ed25519 base point (x,4/5) with x positive. -// -// Preconditions: -// a[31] <= 127 -func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte) { - var e [64]int8 - - for i, v := range a { - e[2*i] = int8(v & 15) - e[2*i+1] = int8((v >> 4) & 15) - } - - // each e[i] is between 0 and 15 and e[63] is between 0 and 7. - - carry := int8(0) - for i := 0; i < 63; i++ { - e[i] += carry - carry = (e[i] + 8) >> 4 - e[i] -= carry << 4 - } - e[63] += carry - // each e[i] is between -8 and 8. - - h.Zero() - var t PreComputedGroupElement - var r CompletedGroupElement - for i := int32(1); i < 64; i += 2 { - selectPoint(&t, i/2, int32(e[i])) - geMixedAdd(&r, h, &t) - r.ToExtended(h) - } - - var s ProjectiveGroupElement - - h.Double(&r) - r.ToProjective(&s) - s.Double(&r) - r.ToProjective(&s) - s.Double(&r) - r.ToProjective(&s) - s.Double(&r) - r.ToExtended(h) - - for i := int32(0); i < 64; i += 2 { - selectPoint(&t, i/2, int32(e[i])) - geMixedAdd(&r, h, &t) - r.ToExtended(h) - } -} - -// The scalars are GF(2^252 + 27742317777372353535851937790883648493). - -// Input: -// a[0]+256*a[1]+...+256^31*a[31] = a -// b[0]+256*b[1]+...+256^31*b[31] = b -// c[0]+256*c[1]+...+256^31*c[31] = c -// -// Output: -// s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l -// where l = 2^252 + 27742317777372353535851937790883648493. -func ScMulAdd(s, a, b, c *[32]byte) { - a0 := 2097151 & load3(a[:]) - a1 := 2097151 & (load4(a[2:]) >> 5) - a2 := 2097151 & (load3(a[5:]) >> 2) - a3 := 2097151 & (load4(a[7:]) >> 7) - a4 := 2097151 & (load4(a[10:]) >> 4) - a5 := 2097151 & (load3(a[13:]) >> 1) - a6 := 2097151 & (load4(a[15:]) >> 6) - a7 := 2097151 & (load3(a[18:]) >> 3) - a8 := 2097151 & load3(a[21:]) - a9 := 2097151 & (load4(a[23:]) >> 5) - a10 := 2097151 & (load3(a[26:]) >> 2) - a11 := (load4(a[28:]) >> 7) - b0 := 2097151 & load3(b[:]) - b1 := 2097151 & (load4(b[2:]) >> 5) - b2 := 2097151 & (load3(b[5:]) >> 2) - b3 := 2097151 & (load4(b[7:]) >> 7) - b4 := 2097151 & (load4(b[10:]) >> 4) - b5 := 2097151 & (load3(b[13:]) >> 1) - b6 := 2097151 & (load4(b[15:]) >> 6) - b7 := 2097151 & (load3(b[18:]) >> 3) - b8 := 2097151 & load3(b[21:]) - b9 := 2097151 & (load4(b[23:]) >> 5) - b10 := 2097151 & (load3(b[26:]) >> 2) - b11 := (load4(b[28:]) >> 7) - c0 := 2097151 & load3(c[:]) - c1 := 2097151 & (load4(c[2:]) >> 5) - c2 := 2097151 & (load3(c[5:]) >> 2) - c3 := 2097151 & (load4(c[7:]) >> 7) - c4 := 2097151 & (load4(c[10:]) >> 4) - c5 := 2097151 & (load3(c[13:]) >> 1) - c6 := 2097151 & (load4(c[15:]) >> 6) - c7 := 2097151 & (load3(c[18:]) >> 3) - c8 := 2097151 & load3(c[21:]) - c9 := 2097151 & (load4(c[23:]) >> 5) - c10 := 2097151 & (load3(c[26:]) >> 2) - c11 := (load4(c[28:]) >> 7) - var carry [23]int64 - - s0 := c0 + a0*b0 - s1 := c1 + a0*b1 + a1*b0 - s2 := c2 + a0*b2 + a1*b1 + a2*b0 - s3 := c3 + a0*b3 + a1*b2 + a2*b1 + a3*b0 - s4 := c4 + a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0 - s5 := c5 + a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0 - s6 := c6 + a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0 - s7 := c7 + a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0 - s8 := c8 + a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0 - s9 := c9 + a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0 - s10 := c10 + a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0 - s11 := c11 + a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0 - s12 := a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1 - s13 := a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2 - s14 := a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3 - s15 := a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4 - s16 := a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5 - s17 := a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6 - s18 := a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7 - s19 := a8*b11 + a9*b10 + a10*b9 + a11*b8 - s20 := a9*b11 + a10*b10 + a11*b9 - s21 := a10*b11 + a11*b10 - s22 := a11 * b11 - s23 := int64(0) - - carry[0] = (s0 + (1 << 20)) >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[2] = (s2 + (1 << 20)) >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[4] = (s4 + (1 << 20)) >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[6] = (s6 + (1 << 20)) >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[8] = (s8 + (1 << 20)) >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[10] = (s10 + (1 << 20)) >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - carry[12] = (s12 + (1 << 20)) >> 21 - s13 += carry[12] - s12 -= carry[12] << 21 - carry[14] = (s14 + (1 << 20)) >> 21 - s15 += carry[14] - s14 -= carry[14] << 21 - carry[16] = (s16 + (1 << 20)) >> 21 - s17 += carry[16] - s16 -= carry[16] << 21 - carry[18] = (s18 + (1 << 20)) >> 21 - s19 += carry[18] - s18 -= carry[18] << 21 - carry[20] = (s20 + (1 << 20)) >> 21 - s21 += carry[20] - s20 -= carry[20] << 21 - carry[22] = (s22 + (1 << 20)) >> 21 - s23 += carry[22] - s22 -= carry[22] << 21 - - carry[1] = (s1 + (1 << 20)) >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[3] = (s3 + (1 << 20)) >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[5] = (s5 + (1 << 20)) >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[7] = (s7 + (1 << 20)) >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[9] = (s9 + (1 << 20)) >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[11] = (s11 + (1 << 20)) >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - carry[13] = (s13 + (1 << 20)) >> 21 - s14 += carry[13] - s13 -= carry[13] << 21 - carry[15] = (s15 + (1 << 20)) >> 21 - s16 += carry[15] - s15 -= carry[15] << 21 - carry[17] = (s17 + (1 << 20)) >> 21 - s18 += carry[17] - s17 -= carry[17] << 21 - carry[19] = (s19 + (1 << 20)) >> 21 - s20 += carry[19] - s19 -= carry[19] << 21 - carry[21] = (s21 + (1 << 20)) >> 21 - s22 += carry[21] - s21 -= carry[21] << 21 - - s11 += s23 * 666643 - s12 += s23 * 470296 - s13 += s23 * 654183 - s14 -= s23 * 997805 - s15 += s23 * 136657 - s16 -= s23 * 683901 - s23 = 0 - - s10 += s22 * 666643 - s11 += s22 * 470296 - s12 += s22 * 654183 - s13 -= s22 * 997805 - s14 += s22 * 136657 - s15 -= s22 * 683901 - s22 = 0 - - s9 += s21 * 666643 - s10 += s21 * 470296 - s11 += s21 * 654183 - s12 -= s21 * 997805 - s13 += s21 * 136657 - s14 -= s21 * 683901 - s21 = 0 - - s8 += s20 * 666643 - s9 += s20 * 470296 - s10 += s20 * 654183 - s11 -= s20 * 997805 - s12 += s20 * 136657 - s13 -= s20 * 683901 - s20 = 0 - - s7 += s19 * 666643 - s8 += s19 * 470296 - s9 += s19 * 654183 - s10 -= s19 * 997805 - s11 += s19 * 136657 - s12 -= s19 * 683901 - s19 = 0 - - s6 += s18 * 666643 - s7 += s18 * 470296 - s8 += s18 * 654183 - s9 -= s18 * 997805 - s10 += s18 * 136657 - s11 -= s18 * 683901 - s18 = 0 - - carry[6] = (s6 + (1 << 20)) >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[8] = (s8 + (1 << 20)) >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[10] = (s10 + (1 << 20)) >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - carry[12] = (s12 + (1 << 20)) >> 21 - s13 += carry[12] - s12 -= carry[12] << 21 - carry[14] = (s14 + (1 << 20)) >> 21 - s15 += carry[14] - s14 -= carry[14] << 21 - carry[16] = (s16 + (1 << 20)) >> 21 - s17 += carry[16] - s16 -= carry[16] << 21 - - carry[7] = (s7 + (1 << 20)) >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[9] = (s9 + (1 << 20)) >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[11] = (s11 + (1 << 20)) >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - carry[13] = (s13 + (1 << 20)) >> 21 - s14 += carry[13] - s13 -= carry[13] << 21 - carry[15] = (s15 + (1 << 20)) >> 21 - s16 += carry[15] - s15 -= carry[15] << 21 - - s5 += s17 * 666643 - s6 += s17 * 470296 - s7 += s17 * 654183 - s8 -= s17 * 997805 - s9 += s17 * 136657 - s10 -= s17 * 683901 - s17 = 0 - - s4 += s16 * 666643 - s5 += s16 * 470296 - s6 += s16 * 654183 - s7 -= s16 * 997805 - s8 += s16 * 136657 - s9 -= s16 * 683901 - s16 = 0 - - s3 += s15 * 666643 - s4 += s15 * 470296 - s5 += s15 * 654183 - s6 -= s15 * 997805 - s7 += s15 * 136657 - s8 -= s15 * 683901 - s15 = 0 - - s2 += s14 * 666643 - s3 += s14 * 470296 - s4 += s14 * 654183 - s5 -= s14 * 997805 - s6 += s14 * 136657 - s7 -= s14 * 683901 - s14 = 0 - - s1 += s13 * 666643 - s2 += s13 * 470296 - s3 += s13 * 654183 - s4 -= s13 * 997805 - s5 += s13 * 136657 - s6 -= s13 * 683901 - s13 = 0 - - s0 += s12 * 666643 - s1 += s12 * 470296 - s2 += s12 * 654183 - s3 -= s12 * 997805 - s4 += s12 * 136657 - s5 -= s12 * 683901 - s12 = 0 - - carry[0] = (s0 + (1 << 20)) >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[2] = (s2 + (1 << 20)) >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[4] = (s4 + (1 << 20)) >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[6] = (s6 + (1 << 20)) >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[8] = (s8 + (1 << 20)) >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[10] = (s10 + (1 << 20)) >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - - carry[1] = (s1 + (1 << 20)) >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[3] = (s3 + (1 << 20)) >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[5] = (s5 + (1 << 20)) >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[7] = (s7 + (1 << 20)) >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[9] = (s9 + (1 << 20)) >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[11] = (s11 + (1 << 20)) >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - - s0 += s12 * 666643 - s1 += s12 * 470296 - s2 += s12 * 654183 - s3 -= s12 * 997805 - s4 += s12 * 136657 - s5 -= s12 * 683901 - s12 = 0 - - carry[0] = s0 >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[1] = s1 >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[2] = s2 >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[3] = s3 >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[4] = s4 >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[5] = s5 >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[6] = s6 >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[7] = s7 >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[8] = s8 >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[9] = s9 >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[10] = s10 >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - carry[11] = s11 >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - - s0 += s12 * 666643 - s1 += s12 * 470296 - s2 += s12 * 654183 - s3 -= s12 * 997805 - s4 += s12 * 136657 - s5 -= s12 * 683901 - s12 = 0 - - carry[0] = s0 >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[1] = s1 >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[2] = s2 >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[3] = s3 >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[4] = s4 >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[5] = s5 >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[6] = s6 >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[7] = s7 >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[8] = s8 >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[9] = s9 >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[10] = s10 >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - - s[0] = byte(s0 >> 0) - s[1] = byte(s0 >> 8) - s[2] = byte((s0 >> 16) | (s1 << 5)) - s[3] = byte(s1 >> 3) - s[4] = byte(s1 >> 11) - s[5] = byte((s1 >> 19) | (s2 << 2)) - s[6] = byte(s2 >> 6) - s[7] = byte((s2 >> 14) | (s3 << 7)) - s[8] = byte(s3 >> 1) - s[9] = byte(s3 >> 9) - s[10] = byte((s3 >> 17) | (s4 << 4)) - s[11] = byte(s4 >> 4) - s[12] = byte(s4 >> 12) - s[13] = byte((s4 >> 20) | (s5 << 1)) - s[14] = byte(s5 >> 7) - s[15] = byte((s5 >> 15) | (s6 << 6)) - s[16] = byte(s6 >> 2) - s[17] = byte(s6 >> 10) - s[18] = byte((s6 >> 18) | (s7 << 3)) - s[19] = byte(s7 >> 5) - s[20] = byte(s7 >> 13) - s[21] = byte(s8 >> 0) - s[22] = byte(s8 >> 8) - s[23] = byte((s8 >> 16) | (s9 << 5)) - s[24] = byte(s9 >> 3) - s[25] = byte(s9 >> 11) - s[26] = byte((s9 >> 19) | (s10 << 2)) - s[27] = byte(s10 >> 6) - s[28] = byte((s10 >> 14) | (s11 << 7)) - s[29] = byte(s11 >> 1) - s[30] = byte(s11 >> 9) - s[31] = byte(s11 >> 17) -} - -// Input: -// s[0]+256*s[1]+...+256^63*s[63] = s -// -// Output: -// s[0]+256*s[1]+...+256^31*s[31] = s mod l -// where l = 2^252 + 27742317777372353535851937790883648493. -func ScReduce(out *[32]byte, s *[64]byte) { - s0 := 2097151 & load3(s[:]) - s1 := 2097151 & (load4(s[2:]) >> 5) - s2 := 2097151 & (load3(s[5:]) >> 2) - s3 := 2097151 & (load4(s[7:]) >> 7) - s4 := 2097151 & (load4(s[10:]) >> 4) - s5 := 2097151 & (load3(s[13:]) >> 1) - s6 := 2097151 & (load4(s[15:]) >> 6) - s7 := 2097151 & (load3(s[18:]) >> 3) - s8 := 2097151 & load3(s[21:]) - s9 := 2097151 & (load4(s[23:]) >> 5) - s10 := 2097151 & (load3(s[26:]) >> 2) - s11 := 2097151 & (load4(s[28:]) >> 7) - s12 := 2097151 & (load4(s[31:]) >> 4) - s13 := 2097151 & (load3(s[34:]) >> 1) - s14 := 2097151 & (load4(s[36:]) >> 6) - s15 := 2097151 & (load3(s[39:]) >> 3) - s16 := 2097151 & load3(s[42:]) - s17 := 2097151 & (load4(s[44:]) >> 5) - s18 := 2097151 & (load3(s[47:]) >> 2) - s19 := 2097151 & (load4(s[49:]) >> 7) - s20 := 2097151 & (load4(s[52:]) >> 4) - s21 := 2097151 & (load3(s[55:]) >> 1) - s22 := 2097151 & (load4(s[57:]) >> 6) - s23 := (load4(s[60:]) >> 3) - - s11 += s23 * 666643 - s12 += s23 * 470296 - s13 += s23 * 654183 - s14 -= s23 * 997805 - s15 += s23 * 136657 - s16 -= s23 * 683901 - s23 = 0 - - s10 += s22 * 666643 - s11 += s22 * 470296 - s12 += s22 * 654183 - s13 -= s22 * 997805 - s14 += s22 * 136657 - s15 -= s22 * 683901 - s22 = 0 - - s9 += s21 * 666643 - s10 += s21 * 470296 - s11 += s21 * 654183 - s12 -= s21 * 997805 - s13 += s21 * 136657 - s14 -= s21 * 683901 - s21 = 0 - - s8 += s20 * 666643 - s9 += s20 * 470296 - s10 += s20 * 654183 - s11 -= s20 * 997805 - s12 += s20 * 136657 - s13 -= s20 * 683901 - s20 = 0 - - s7 += s19 * 666643 - s8 += s19 * 470296 - s9 += s19 * 654183 - s10 -= s19 * 997805 - s11 += s19 * 136657 - s12 -= s19 * 683901 - s19 = 0 - - s6 += s18 * 666643 - s7 += s18 * 470296 - s8 += s18 * 654183 - s9 -= s18 * 997805 - s10 += s18 * 136657 - s11 -= s18 * 683901 - s18 = 0 - - var carry [17]int64 - - carry[6] = (s6 + (1 << 20)) >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[8] = (s8 + (1 << 20)) >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[10] = (s10 + (1 << 20)) >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - carry[12] = (s12 + (1 << 20)) >> 21 - s13 += carry[12] - s12 -= carry[12] << 21 - carry[14] = (s14 + (1 << 20)) >> 21 - s15 += carry[14] - s14 -= carry[14] << 21 - carry[16] = (s16 + (1 << 20)) >> 21 - s17 += carry[16] - s16 -= carry[16] << 21 - - carry[7] = (s7 + (1 << 20)) >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[9] = (s9 + (1 << 20)) >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[11] = (s11 + (1 << 20)) >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - carry[13] = (s13 + (1 << 20)) >> 21 - s14 += carry[13] - s13 -= carry[13] << 21 - carry[15] = (s15 + (1 << 20)) >> 21 - s16 += carry[15] - s15 -= carry[15] << 21 - - s5 += s17 * 666643 - s6 += s17 * 470296 - s7 += s17 * 654183 - s8 -= s17 * 997805 - s9 += s17 * 136657 - s10 -= s17 * 683901 - s17 = 0 - - s4 += s16 * 666643 - s5 += s16 * 470296 - s6 += s16 * 654183 - s7 -= s16 * 997805 - s8 += s16 * 136657 - s9 -= s16 * 683901 - s16 = 0 - - s3 += s15 * 666643 - s4 += s15 * 470296 - s5 += s15 * 654183 - s6 -= s15 * 997805 - s7 += s15 * 136657 - s8 -= s15 * 683901 - s15 = 0 - - s2 += s14 * 666643 - s3 += s14 * 470296 - s4 += s14 * 654183 - s5 -= s14 * 997805 - s6 += s14 * 136657 - s7 -= s14 * 683901 - s14 = 0 - - s1 += s13 * 666643 - s2 += s13 * 470296 - s3 += s13 * 654183 - s4 -= s13 * 997805 - s5 += s13 * 136657 - s6 -= s13 * 683901 - s13 = 0 - - s0 += s12 * 666643 - s1 += s12 * 470296 - s2 += s12 * 654183 - s3 -= s12 * 997805 - s4 += s12 * 136657 - s5 -= s12 * 683901 - s12 = 0 - - carry[0] = (s0 + (1 << 20)) >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[2] = (s2 + (1 << 20)) >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[4] = (s4 + (1 << 20)) >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[6] = (s6 + (1 << 20)) >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[8] = (s8 + (1 << 20)) >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[10] = (s10 + (1 << 20)) >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - - carry[1] = (s1 + (1 << 20)) >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[3] = (s3 + (1 << 20)) >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[5] = (s5 + (1 << 20)) >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[7] = (s7 + (1 << 20)) >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[9] = (s9 + (1 << 20)) >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[11] = (s11 + (1 << 20)) >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - - s0 += s12 * 666643 - s1 += s12 * 470296 - s2 += s12 * 654183 - s3 -= s12 * 997805 - s4 += s12 * 136657 - s5 -= s12 * 683901 - s12 = 0 - - carry[0] = s0 >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[1] = s1 >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[2] = s2 >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[3] = s3 >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[4] = s4 >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[5] = s5 >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[6] = s6 >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[7] = s7 >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[8] = s8 >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[9] = s9 >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[10] = s10 >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - carry[11] = s11 >> 21 - s12 += carry[11] - s11 -= carry[11] << 21 - - s0 += s12 * 666643 - s1 += s12 * 470296 - s2 += s12 * 654183 - s3 -= s12 * 997805 - s4 += s12 * 136657 - s5 -= s12 * 683901 - s12 = 0 - - carry[0] = s0 >> 21 - s1 += carry[0] - s0 -= carry[0] << 21 - carry[1] = s1 >> 21 - s2 += carry[1] - s1 -= carry[1] << 21 - carry[2] = s2 >> 21 - s3 += carry[2] - s2 -= carry[2] << 21 - carry[3] = s3 >> 21 - s4 += carry[3] - s3 -= carry[3] << 21 - carry[4] = s4 >> 21 - s5 += carry[4] - s4 -= carry[4] << 21 - carry[5] = s5 >> 21 - s6 += carry[5] - s5 -= carry[5] << 21 - carry[6] = s6 >> 21 - s7 += carry[6] - s6 -= carry[6] << 21 - carry[7] = s7 >> 21 - s8 += carry[7] - s7 -= carry[7] << 21 - carry[8] = s8 >> 21 - s9 += carry[8] - s8 -= carry[8] << 21 - carry[9] = s9 >> 21 - s10 += carry[9] - s9 -= carry[9] << 21 - carry[10] = s10 >> 21 - s11 += carry[10] - s10 -= carry[10] << 21 - - out[0] = byte(s0 >> 0) - out[1] = byte(s0 >> 8) - out[2] = byte((s0 >> 16) | (s1 << 5)) - out[3] = byte(s1 >> 3) - out[4] = byte(s1 >> 11) - out[5] = byte((s1 >> 19) | (s2 << 2)) - out[6] = byte(s2 >> 6) - out[7] = byte((s2 >> 14) | (s3 << 7)) - out[8] = byte(s3 >> 1) - out[9] = byte(s3 >> 9) - out[10] = byte((s3 >> 17) | (s4 << 4)) - out[11] = byte(s4 >> 4) - out[12] = byte(s4 >> 12) - out[13] = byte((s4 >> 20) | (s5 << 1)) - out[14] = byte(s5 >> 7) - out[15] = byte((s5 >> 15) | (s6 << 6)) - out[16] = byte(s6 >> 2) - out[17] = byte(s6 >> 10) - out[18] = byte((s6 >> 18) | (s7 << 3)) - out[19] = byte(s7 >> 5) - out[20] = byte(s7 >> 13) - out[21] = byte(s8 >> 0) - out[22] = byte(s8 >> 8) - out[23] = byte((s8 >> 16) | (s9 << 5)) - out[24] = byte(s9 >> 3) - out[25] = byte(s9 >> 11) - out[26] = byte((s9 >> 19) | (s10 << 2)) - out[27] = byte(s10 >> 6) - out[28] = byte((s10 >> 14) | (s11 << 7)) - out[29] = byte(s11 >> 1) - out[30] = byte(s11 >> 9) - out[31] = byte(s11 >> 17) -} - -// order is the order of Curve25519 in little-endian form. -var order = [4]uint64{0x5812631a5cf5d3ed, 0x14def9dea2f79cd6, 0, 0x1000000000000000} - -// ScMinimal returns true if the given scalar is less than the order of the -// curve. -func ScMinimal(scalar *[32]byte) bool { - for i := 3; ; i-- { - v := binary.LittleEndian.Uint64(scalar[i*8:]) - if v > order[i] { - return false - } else if v < order[i] { - break - } else if i == 0 { - return false - } - } - - return true -} diff --git a/tools/metrics/vendor/golang.org/x/mod/module/module.go b/tools/metrics/vendor/golang.org/x/mod/module/module.go index 355b5a4568..e9dec6e614 100644 --- a/tools/metrics/vendor/golang.org/x/mod/module/module.go +++ b/tools/metrics/vendor/golang.org/x/mod/module/module.go @@ -15,7 +15,7 @@ // but additional checking functions, most notably Check, verify that // a particular path, version pair is valid. // -// Escaped Paths +// # Escaped Paths // // Module paths appear as substrings of file system paths // (in the download cache) and of web server URLs in the proxy protocol. @@ -55,7 +55,7 @@ // Import paths have never allowed exclamation marks, so there is no // need to define how to escape a literal !. // -// Unicode Restrictions +// # Unicode Restrictions // // Today, paths are disallowed from using Unicode. // @@ -96,6 +96,7 @@ package module // Changes to the semantics in this file require approval from rsc. import ( + "errors" "fmt" "path" "sort" @@ -104,7 +105,6 @@ import ( "unicode/utf8" "golang.org/x/mod/semver" - errors "golang.org/x/xerrors" ) // A Version (for clients, a module.Version) is defined by a module path and version pair. @@ -258,7 +258,7 @@ func modPathOK(r rune) bool { return false } -// modPathOK reports whether r can appear in a package import path element. +// importPathOK reports whether r can appear in a package import path element. // // Import paths are intermediate between module paths and file paths: we allow // disallow characters that would be confusing or ambiguous as arguments to diff --git a/tools/metrics/vendor/golang.org/x/net/AUTHORS b/tools/metrics/vendor/golang.org/x/net/AUTHORS deleted file mode 100644 index 15167cd746..0000000000 --- a/tools/metrics/vendor/golang.org/x/net/AUTHORS +++ /dev/null @@ -1,3 +0,0 @@ -# This source code refers to The Go Authors for copyright purposes. -# The master list of authors is in the main Go distribution, -# visible at http://tip.golang.org/AUTHORS. diff --git a/tools/metrics/vendor/golang.org/x/net/CONTRIBUTORS b/tools/metrics/vendor/golang.org/x/net/CONTRIBUTORS deleted file mode 100644 index 1c4577e968..0000000000 --- a/tools/metrics/vendor/golang.org/x/net/CONTRIBUTORS +++ /dev/null @@ -1,3 +0,0 @@ -# This source code was written by the Go contributors. -# The master list of contributors is in the main Go distribution, -# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/tools/metrics/vendor/golang.org/x/net/bpf/doc.go b/tools/metrics/vendor/golang.org/x/net/bpf/doc.go index ae62feb534..04ec1c8ab5 100644 --- a/tools/metrics/vendor/golang.org/x/net/bpf/doc.go +++ b/tools/metrics/vendor/golang.org/x/net/bpf/doc.go @@ -3,7 +3,6 @@ // license that can be found in the LICENSE file. /* - Package bpf implements marshaling and unmarshaling of programs for the Berkeley Packet Filter virtual machine, and provides a Go implementation of the virtual machine. @@ -21,7 +20,7 @@ access to kernel functions, and while conditional branches are allowed, they can only jump forwards, to guarantee that there are no infinite loops. -The virtual machine +# The virtual machine The BPF VM is an accumulator machine. Its main register, called register A, is an implicit source and destination in all arithmetic @@ -50,7 +49,7 @@ to extensions, which are essentially calls to kernel utility functions. Currently, the only extensions supported by this package are the Linux packet filter extensions. -Examples +# Examples This packet filter selects all ARP packets. @@ -77,6 +76,5 @@ This packet filter captures a random 1% sample of traffic. // Ignore. bpf.RetConstant{Val: 0}, }) - */ package bpf // import "golang.org/x/net/bpf" diff --git a/tools/metrics/vendor/golang.org/x/net/bpf/vm_instructions.go b/tools/metrics/vendor/golang.org/x/net/bpf/vm_instructions.go index cf8947c332..0aa307c061 100644 --- a/tools/metrics/vendor/golang.org/x/net/bpf/vm_instructions.go +++ b/tools/metrics/vendor/golang.org/x/net/bpf/vm_instructions.go @@ -94,7 +94,7 @@ func jumpIfCommon(cond JumpTest, skipTrue, skipFalse uint8, regA uint32, value u func loadAbsolute(ins LoadAbsolute, in []byte) (uint32, bool) { offset := int(ins.Off) - size := int(ins.Size) + size := ins.Size return loadCommon(in, offset, size) } @@ -121,7 +121,7 @@ func loadExtension(ins LoadExtension, in []byte) uint32 { func loadIndirect(ins LoadIndirect, in []byte, regX uint32) (uint32, bool) { offset := int(ins.Off) + int(regX) - size := int(ins.Size) + size := ins.Size return loadCommon(in, offset, size) } diff --git a/tools/metrics/vendor/golang.org/x/net/context/context.go b/tools/metrics/vendor/golang.org/x/net/context/context.go index a3c021d3f8..cf66309c4a 100644 --- a/tools/metrics/vendor/golang.org/x/net/context/context.go +++ b/tools/metrics/vendor/golang.org/x/net/context/context.go @@ -21,9 +21,9 @@ // explicitly to each function that needs it. The Context should be the first // parameter, typically named ctx: // -// func DoSomething(ctx context.Context, arg Arg) error { -// // ... use ctx ... -// } +// func DoSomething(ctx context.Context, arg Arg) error { +// // ... use ctx ... +// } // // Do not pass a nil Context, even if a function permits it. Pass context.TODO // if you are unsure about which Context to use. diff --git a/tools/metrics/vendor/golang.org/x/net/context/go17.go b/tools/metrics/vendor/golang.org/x/net/context/go17.go index 344bd14334..0c1b867937 100644 --- a/tools/metrics/vendor/golang.org/x/net/context/go17.go +++ b/tools/metrics/vendor/golang.org/x/net/context/go17.go @@ -3,7 +3,6 @@ // license that can be found in the LICENSE file. //go:build go1.7 -// +build go1.7 package context @@ -32,7 +31,7 @@ var DeadlineExceeded = context.DeadlineExceeded // call cancel as soon as the operations running in this Context complete. func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { ctx, f := context.WithCancel(parent) - return ctx, CancelFunc(f) + return ctx, f } // WithDeadline returns a copy of the parent context with the deadline adjusted @@ -46,7 +45,7 @@ func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { // call cancel as soon as the operations running in this Context complete. func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { ctx, f := context.WithDeadline(parent, deadline) - return ctx, CancelFunc(f) + return ctx, f } // WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)). @@ -54,11 +53,11 @@ func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { // Canceling this context releases resources associated with it, so code should // call cancel as soon as the operations running in this Context complete: // -// func slowOperationWithTimeout(ctx context.Context) (Result, error) { -// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) -// defer cancel() // releases resources if slowOperation completes before timeout elapses -// return slowOperation(ctx) -// } +// func slowOperationWithTimeout(ctx context.Context) (Result, error) { +// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) +// defer cancel() // releases resources if slowOperation completes before timeout elapses +// return slowOperation(ctx) +// } func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { return WithDeadline(parent, time.Now().Add(timeout)) } diff --git a/tools/metrics/vendor/golang.org/x/net/context/go19.go b/tools/metrics/vendor/golang.org/x/net/context/go19.go index 64d31ecc3e..e31e35a904 100644 --- a/tools/metrics/vendor/golang.org/x/net/context/go19.go +++ b/tools/metrics/vendor/golang.org/x/net/context/go19.go @@ -3,7 +3,6 @@ // license that can be found in the LICENSE file. //go:build go1.9 -// +build go1.9 package context diff --git a/tools/metrics/vendor/golang.org/x/net/context/pre_go17.go b/tools/metrics/vendor/golang.org/x/net/context/pre_go17.go index 5270db5db7..065ff3dfa5 100644 --- a/tools/metrics/vendor/golang.org/x/net/context/pre_go17.go +++ b/tools/metrics/vendor/golang.org/x/net/context/pre_go17.go @@ -3,7 +3,6 @@ // license that can be found in the LICENSE file. //go:build !go1.7 -// +build !go1.7 package context @@ -264,11 +263,11 @@ func (c *timerCtx) cancel(removeFromParent bool, err error) { // Canceling this context releases resources associated with it, so code should // call cancel as soon as the operations running in this Context complete: // -// func slowOperationWithTimeout(ctx context.Context) (Result, error) { -// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) -// defer cancel() // releases resources if slowOperation completes before timeout elapses -// return slowOperation(ctx) -// } +// func slowOperationWithTimeout(ctx context.Context) (Result, error) { +// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) +// defer cancel() // releases resources if slowOperation completes before timeout elapses +// return slowOperation(ctx) +// } func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { return WithDeadline(parent, time.Now().Add(timeout)) } diff --git a/tools/metrics/vendor/golang.org/x/net/context/pre_go19.go b/tools/metrics/vendor/golang.org/x/net/context/pre_go19.go index 1f9715341f..ec5a638033 100644 --- a/tools/metrics/vendor/golang.org/x/net/context/pre_go19.go +++ b/tools/metrics/vendor/golang.org/x/net/context/pre_go19.go @@ -3,7 +3,6 @@ // license that can be found in the LICENSE file. //go:build !go1.9 -// +build !go1.9 package context diff --git a/tools/metrics/vendor/golang.org/x/net/html/doc.go b/tools/metrics/vendor/golang.org/x/net/html/doc.go index 822ed42a04..2466ae3d9a 100644 --- a/tools/metrics/vendor/golang.org/x/net/html/doc.go +++ b/tools/metrics/vendor/golang.org/x/net/html/doc.go @@ -92,6 +92,27 @@ example, to process each anchor node in depth-first order: The relevant specifications include: https://html.spec.whatwg.org/multipage/syntax.html and https://html.spec.whatwg.org/multipage/syntax.html#tokenization + +# Security Considerations + +Care should be taken when parsing and interpreting HTML, whether full documents +or fragments, within the framework of the HTML specification, especially with +regard to untrusted inputs. + +This package provides both a tokenizer and a parser, which implement the +tokenization, and tokenization and tree construction stages of the WHATWG HTML +parsing specification respectively. While the tokenizer parses and normalizes +individual HTML tokens, only the parser constructs the DOM tree from the +tokenized HTML, as described in the tree construction stage of the +specification, dynamically modifying or extending the docuemnt's DOM tree. + +If your use case requires semantically well-formed HTML documents, as defined by +the WHATWG specification, the parser should be used rather than the tokenizer. + +In security contexts, if trust decisions are being made using the tokenized or +parsed content, the input must be re-serialized (for instance by using Render or +Token.String) in order for those trust decisions to hold, as the process of +tokenization or parsing may alter the content. */ package html // import "golang.org/x/net/html" diff --git a/tools/metrics/vendor/golang.org/x/net/html/escape.go b/tools/metrics/vendor/golang.org/x/net/html/escape.go index d856139620..04c6bec210 100644 --- a/tools/metrics/vendor/golang.org/x/net/html/escape.go +++ b/tools/metrics/vendor/golang.org/x/net/html/escape.go @@ -193,6 +193,87 @@ func lower(b []byte) []byte { return b } +// escapeComment is like func escape but escapes its input bytes less often. +// Per https://github.com/golang/go/issues/58246 some HTML comments are (1) +// meaningful and (2) contain angle brackets that we'd like to avoid escaping +// unless we have to. +// +// "We have to" includes the '&' byte, since that introduces other escapes. +// +// It also includes those bytes (not including EOF) that would otherwise end +// the comment. Per the summary table at the bottom of comment_test.go, this is +// the '>' byte that, per above, we'd like to avoid escaping unless we have to. +// +// Studying the summary table (and T actions in its '>' column) closely, we +// only need to escape in states 43, 44, 49, 51 and 52. State 43 is at the +// start of the comment data. State 52 is after a '!'. The other three states +// are after a '-'. +// +// Our algorithm is thus to escape every '&' and to escape '>' if and only if: +// - The '>' is after a '!' or '-' (in the unescaped data) or +// - The '>' is at the start of the comment data (after the opening ""); err != nil { @@ -96,7 +96,7 @@ func render1(w writer, n *Node) error { if _, err := w.WriteString("') } +func childTextNodesAreLiteral(n *Node) bool { + // Per WHATWG HTML 13.3, if the parent of the current node is a style, + // script, xmp, iframe, noembed, noframes, or plaintext element, and the + // current node is a text node, append the value of the node's data + // literally. The specification is not explicit about it, but we only + // enforce this if we are in the HTML namespace (i.e. when the namespace is + // ""). + // NOTE: we also always include noscript elements, although the + // specification states that they should only be rendered as such if + // scripting is enabled for the node (which is not something we track). + if n.Namespace != "" { + return false + } + switch n.Data { + case "iframe", "noembed", "noframes", "noscript", "plaintext", "script", "style", "xmp": + return true + default: + return false + } +} + // writeQuoted writes s to w surrounded by quotes. Normally it will use double // quotes, but if s contains a double quote, it will use single quotes. // It is used for writing the identifiers in a doctype declaration. diff --git a/tools/metrics/vendor/golang.org/x/net/html/token.go b/tools/metrics/vendor/golang.org/x/net/html/token.go index 877709f991..3c57880d69 100644 --- a/tools/metrics/vendor/golang.org/x/net/html/token.go +++ b/tools/metrics/vendor/golang.org/x/net/html/token.go @@ -110,9 +110,9 @@ func (t Token) String() string { case SelfClosingTagToken: return "<" + t.tagString() + "/>" case CommentToken: - return "" + return "" case DoctypeToken: - return "" + return "" } return "Invalid(" + strconv.Itoa(int(t.Type)) + ")" } @@ -598,6 +598,11 @@ scriptDataDoubleEscapeEnd: // readComment reads the next comment token starting with "") return } @@ -628,19 +632,52 @@ func (z *Tokenizer) readComment() { if dashCount >= 2 { c = z.readByte() if z.err != nil { - z.data.end = z.raw.end + z.data.end = z.calculateAbruptCommentDataEnd() return - } - if c == '>' { + } else if c == '>' { z.data.end = z.raw.end - len("--!>") return + } else if c == '-' { + dashCount = 1 + beginning = false + continue } } } dashCount = 0 + beginning = false } } +func (z *Tokenizer) calculateAbruptCommentDataEnd() int { + raw := z.Raw() + const prefixLen = len(" +// z := x + y // add them +// <-A-> +// <----B-----> // // the ast.BinaryExpr(+) node is considered to enclose interval B // even though its [Pos()..End()) is actually only interval A. @@ -43,10 +43,10 @@ import ( // interior whitespace of path[0]. // In this example: // -// z := x + y // add them -// <--C--> <---E--> -// ^ -// D +// z := x + y // add them +// <--C--> <---E--> +// ^ +// D // // intervals C, D and E are inexact. C is contained by the // z-assignment statement, because it spans three of its children (:=, @@ -54,12 +54,11 @@ import ( // interior whitespace of the assignment. E is considered interior // whitespace of the BlockStmt containing the assignment. // -// Precondition: [start, end) both lie within the same file as root. -// TODO(adonovan): return (nil, false) in this case and remove precond. -// Requires FileSet; see loader.tokenFileContainsPos. -// -// Postcondition: path is never nil; it always contains at least 'root'. -// +// The resulting path is never empty; it always contains at least the +// 'root' *ast.File. Ideally PathEnclosingInterval would reject +// intervals that lie wholly or partially outside the range of the +// file, but unfortunately ast.File records only the token.Pos of +// the 'package' keyword, but not of the start of the file itself. func PathEnclosingInterval(root *ast.File, start, end token.Pos) (path []ast.Node, exact bool) { // fmt.Printf("EnclosingInterval %d %d\n", start, end) // debugging @@ -135,6 +134,7 @@ func PathEnclosingInterval(root *ast.File, start, end token.Pos) (path []ast.Nod return false // inexact: overlaps multiple children } + // Ensure [start,end) is nondecreasing. if start > end { start, end = end, start } @@ -162,7 +162,6 @@ func PathEnclosingInterval(root *ast.File, start, end token.Pos) (path []ast.Nod // tokenNode is a dummy implementation of ast.Node for a single token. // They are used transiently by PathEnclosingInterval but never escape // this package. -// type tokenNode struct { pos token.Pos end token.Pos @@ -183,7 +182,6 @@ func tok(pos token.Pos, len int) ast.Node { // childrenOf returns the direct non-nil children of ast.Node n. // It may include fake ast.Node implementations for bare tokens. // it is not safe to call (e.g.) ast.Walk on such nodes. -// func childrenOf(n ast.Node) []ast.Node { var children []ast.Node @@ -488,7 +486,6 @@ func (sl byPos) Swap(i, j int) { // TODO(adonovan): in some cases (e.g. Field, FieldList, Ident, // StarExpr) we could be much more specific given the path to the AST // root. Perhaps we should do that. -// func NodeDescription(n ast.Node) string { switch n := n.(type) { case *ast.ArrayType: diff --git a/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/imports.go b/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/imports.go index 2087ceec9c..18d1adb05d 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/imports.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/imports.go @@ -22,8 +22,11 @@ func AddImport(fset *token.FileSet, f *ast.File, path string) (added bool) { // If name is not empty, it is used to rename the import. // // For example, calling +// // AddNamedImport(fset, f, "pathpkg", "path") +// // adds +// // import pathpkg "path" func AddNamedImport(fset *token.FileSet, f *ast.File, name, path string) (added bool) { if imports(f, name, path) { @@ -270,8 +273,8 @@ func DeleteNamedImport(fset *token.FileSet, f *ast.File, name, path string) (del } if j > 0 { lastImpspec := gen.Specs[j-1].(*ast.ImportSpec) - lastLine := fset.Position(lastImpspec.Path.ValuePos).Line - line := fset.Position(impspec.Path.ValuePos).Line + lastLine := fset.PositionFor(lastImpspec.Path.ValuePos, false).Line + line := fset.PositionFor(impspec.Path.ValuePos, false).Line // We deleted an entry but now there may be // a blank line-sized hole where the import was. diff --git a/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/rewrite.go b/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/rewrite.go index 6d9ca23e2b..f430b21b9b 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/rewrite.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/ast/astutil/rewrite.go @@ -41,7 +41,6 @@ type ApplyFunc func(*Cursor) bool // Children are traversed in the order in which they appear in the // respective node's struct definition. A package's files are // traversed in the filenames' alphabetical order. -// func Apply(root ast.Node, pre, post ApplyFunc) (result ast.Node) { parent := &struct{ ast.Node }{root} defer func() { @@ -65,8 +64,8 @@ var abort = new(int) // singleton, to signal termination of Apply // c.Parent(), and f is the field identifier with name c.Name(), // the following invariants hold: // -// p.f == c.Node() if c.Index() < 0 -// p.f[c.Index()] == c.Node() if c.Index() >= 0 +// p.f == c.Node() if c.Index() < 0 +// p.f[c.Index()] == c.Node() if c.Index() >= 0 // // The methods Replace, Delete, InsertBefore, and InsertAfter // can be used to change the AST without disrupting Apply. @@ -294,6 +293,9 @@ func (a *application) apply(parent ast.Node, name string, iter *iterator, n ast. a.apply(n, "Fields", nil, n.Fields) case *ast.FuncType: + if tparams := typeparams.ForFuncType(n); tparams != nil { + a.apply(n, "TypeParams", nil, tparams) + } a.apply(n, "Params", nil, n.Params) a.apply(n, "Results", nil, n.Results) @@ -406,6 +408,9 @@ func (a *application) apply(parent ast.Node, name string, iter *iterator, n ast. case *ast.TypeSpec: a.apply(n, "Doc", nil, n.Doc) a.apply(n, "Name", nil, n.Name) + if tparams := typeparams.ForTypeSpec(n); tparams != nil { + a.apply(n, "TypeParams", nil, tparams) + } a.apply(n, "Type", nil, n.Type) a.apply(n, "Comment", nil, n.Comment) diff --git a/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/inspector.go b/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/inspector.go index af5e17feee..3fbfebf369 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/inspector.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/inspector.go @@ -53,10 +53,13 @@ func New(files []*ast.File) *Inspector { // of an ast.Node during a traversal. type event struct { node ast.Node - typ uint64 // typeOf(node) - index int // 1 + index of corresponding pop event, or 0 if this is a pop + typ uint64 // typeOf(node) on push event, or union of typ strictly between push and pop events on pop events + index int // index of corresponding push or pop event } +// TODO: Experiment with storing only the second word of event.node (unsafe.Pointer). +// Type can be recovered from the sole bit in typ. + // Preorder visits all the nodes of the files supplied to New in // depth-first order. It calls f(n) for each node n before it visits // n's children. @@ -72,10 +75,17 @@ func (in *Inspector) Preorder(types []ast.Node, f func(ast.Node)) { mask := maskOf(types) for i := 0; i < len(in.events); { ev := in.events[i] - if ev.typ&mask != 0 { - if ev.index > 0 { + if ev.index > i { + // push + if ev.typ&mask != 0 { f(ev.node) } + pop := ev.index + if in.events[pop].typ&mask == 0 { + // Subtrees do not contain types: skip them and pop. + i = pop + 1 + continue + } } i++ } @@ -94,15 +104,24 @@ func (in *Inspector) Nodes(types []ast.Node, f func(n ast.Node, push bool) (proc mask := maskOf(types) for i := 0; i < len(in.events); { ev := in.events[i] - if ev.typ&mask != 0 { - if ev.index > 0 { - // push + if ev.index > i { + // push + pop := ev.index + if ev.typ&mask != 0 { if !f(ev.node, true) { - i = ev.index // jump to corresponding pop + 1 + i = pop + 1 // jump to corresponding pop + 1 continue } - } else { - // pop + } + if in.events[pop].typ&mask == 0 { + // Subtrees do not contain types: skip them. + i = pop + continue + } + } else { + // pop + push := ev.index + if in.events[push].typ&mask != 0 { f(ev.node, false) } } @@ -119,19 +138,26 @@ func (in *Inspector) WithStack(types []ast.Node, f func(n ast.Node, push bool, s var stack []ast.Node for i := 0; i < len(in.events); { ev := in.events[i] - if ev.index > 0 { + if ev.index > i { // push + pop := ev.index stack = append(stack, ev.node) if ev.typ&mask != 0 { if !f(ev.node, true, stack) { - i = ev.index + i = pop + 1 stack = stack[:len(stack)-1] continue } } + if in.events[pop].typ&mask == 0 { + // Subtrees does not contain types: skip them. + i = pop + continue + } } else { // pop - if ev.typ&mask != 0 { + push := ev.index + if in.events[push].typ&mask != 0 { f(ev.node, false, stack) } stack = stack[:len(stack)-1] @@ -157,25 +183,31 @@ func traverse(files []*ast.File) []event { events := make([]event, 0, capacity) var stack []event + stack = append(stack, event{}) // include an extra event so file nodes have a parent for _, f := range files { ast.Inspect(f, func(n ast.Node) bool { if n != nil { // push ev := event{ node: n, - typ: typeOf(n), + typ: 0, // temporarily used to accumulate type bits of subtree index: len(events), // push event temporarily holds own index } stack = append(stack, ev) events = append(events, ev) } else { // pop - ev := stack[len(stack)-1] - stack = stack[:len(stack)-1] + top := len(stack) - 1 + ev := stack[top] + typ := typeOf(ev.node) + push := ev.index + parent := top - 1 - events[ev.index].index = len(events) + 1 // make push refer to pop + events[push].typ = typ // set type of push + stack[parent].typ |= typ | ev.typ // parent's typ contains push and pop's typs. + events[push].index = len(events) // make push refer to pop - ev.index = 0 // turn ev into a pop event + stack = stack[:top] events = append(events, ev) } return true diff --git a/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/typeof.go b/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/typeof.go index 11f4fc369a..703c813954 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/typeof.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/ast/inspector/typeof.go @@ -11,6 +11,7 @@ package inspector import ( "go/ast" + "math" "golang.org/x/tools/internal/typeparams" ) @@ -77,12 +78,14 @@ const ( // typeOf returns a distinct single-bit value that represents the type of n. // // Various implementations were benchmarked with BenchmarkNewInspector: -// GOGC=off -// - type switch 4.9-5.5ms 2.1ms -// - binary search over a sorted list of types 5.5-5.9ms 2.5ms -// - linear scan, frequency-ordered list 5.9-6.1ms 2.7ms -// - linear scan, unordered list 6.4ms 2.7ms -// - hash table 6.5ms 3.1ms +// +// GOGC=off +// - type switch 4.9-5.5ms 2.1ms +// - binary search over a sorted list of types 5.5-5.9ms 2.5ms +// - linear scan, frequency-ordered list 5.9-6.1ms 2.7ms +// - linear scan, unordered list 6.4ms 2.7ms +// - hash table 6.5ms 3.1ms +// // A perfect hash seemed like overkill. // // The compiler's switch statement is the clear winner @@ -90,7 +93,6 @@ const ( // with constant conditions and good branch prediction. // (Sadly it is the most verbose in source code.) // Binary search suffered from poor branch prediction. -// func typeOf(n ast.Node) uint64 { // Fast path: nearly half of all nodes are identifiers. if _, ok := n.(*ast.Ident); ok { @@ -217,7 +219,7 @@ func typeOf(n ast.Node) uint64 { func maskOf(nodes []ast.Node) uint64 { if nodes == nil { - return 1<<64 - 1 // match all node types + return math.MaxUint64 // match all node types } var mask uint64 for _, n := range nodes { diff --git a/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go b/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go index cec819d641..165ede0f8f 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go @@ -17,32 +17,46 @@ // developer tools, which will then be able to consume both Go 1.7 and // Go 1.8 export data files, so they will work before and after the // Go update. (See discussion at https://golang.org/issue/15651.) -// package gcexportdata // import "golang.org/x/tools/go/gcexportdata" import ( "bufio" "bytes" + "encoding/json" "fmt" "go/token" "go/types" "io" - "io/ioutil" + "os/exec" - "golang.org/x/tools/go/internal/gcimporter" + "golang.org/x/tools/internal/gcimporter" ) // Find returns the name of an object (.o) or archive (.a) file // containing type information for the specified import path, -// using the workspace layout conventions of go/build. +// using the go command. // If no file was found, an empty filename is returned. // // A relative srcDir is interpreted relative to the current working directory. // // Find also returns the package's resolved (canonical) import path, // reflecting the effects of srcDir and vendoring on importPath. +// +// Deprecated: Use the higher-level API in golang.org/x/tools/go/packages, +// which is more efficient. func Find(importPath, srcDir string) (filename, path string) { - return gcimporter.FindPkg(importPath, srcDir) + cmd := exec.Command("go", "list", "-json", "-export", "--", importPath) + cmd.Dir = srcDir + out, err := cmd.CombinedOutput() + if err != nil { + return "", "" + } + var data struct { + ImportPath string + Export string + } + json.Unmarshal(out, &data) + return data.Export, data.ImportPath } // NewReader returns a reader for the export data section of an object @@ -70,9 +84,26 @@ func NewReader(r io.Reader) (io.Reader, error) { } } +// readAll works the same way as io.ReadAll, but avoids allocations and copies +// by preallocating a byte slice of the necessary size if the size is known up +// front. This is always possible when the input is an archive. In that case, +// NewReader will return the known size using an io.LimitedReader. +func readAll(r io.Reader) ([]byte, error) { + if lr, ok := r.(*io.LimitedReader); ok { + data := make([]byte, lr.N) + _, err := io.ReadFull(lr, data) + return data, err + } + return io.ReadAll(r) +} + // Read reads export data from in, decodes it, and returns type // information for the package. -// The package name is specified by path. +// +// The package path (effectively its linker symbol prefix) is +// specified by path, since unlike the package name, this information +// may not be recorded in the export data. +// // File position information is added to fset. // // Read may inspect and add to the imports map to ensure that references @@ -83,7 +114,7 @@ func NewReader(r io.Reader) (io.Reader, error) { // // On return, the state of the reader is undefined. func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package, path string) (*types.Package, error) { - data, err := ioutil.ReadAll(in) + data, err := readAll(in) if err != nil { return nil, fmt.Errorf("reading export data for %q: %v", path, err) } @@ -92,22 +123,32 @@ func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package, return nil, fmt.Errorf("can't read export data for %q directly from an archive file (call gcexportdata.NewReader first to extract export data)", path) } - // The App Engine Go runtime v1.6 uses the old export data format. - // TODO(adonovan): delete once v1.7 has been around for a while. - if bytes.HasPrefix(data, []byte("package ")) { - return gcimporter.ImportData(imports, path, path, bytes.NewReader(data)) - } - // The indexed export format starts with an 'i'; the older // binary export format starts with a 'c', 'd', or 'v' // (from "version"). Select appropriate importer. - if len(data) > 0 && data[0] == 'i' { - _, pkg, err := gcimporter.IImportData(fset, imports, data[1:], path) - return pkg, err - } + if len(data) > 0 { + switch data[0] { + case 'i': + _, pkg, err := gcimporter.IImportData(fset, imports, data[1:], path) + return pkg, err + + case 'v', 'c', 'd': + _, pkg, err := gcimporter.BImportData(fset, imports, data, path) + return pkg, err - _, pkg, err := gcimporter.BImportData(fset, imports, data, path) - return pkg, err + case 'u': + _, pkg, err := gcimporter.UImportData(fset, imports, data[1:], path) + return pkg, err + + default: + l := len(data) + if l > 10 { + l = 10 + } + return nil, fmt.Errorf("unexpected export data with prefix %q for path %s", string(data[:l]), path) + } + } + return nil, fmt.Errorf("empty export data for %s", path) } // Write writes encoded type information for the specified package to out. @@ -130,7 +171,7 @@ func Write(out io.Writer, fset *token.FileSet, pkg *types.Package) error { // // Experimental: This API is experimental and may change in the future. func ReadBundle(in io.Reader, fset *token.FileSet, imports map[string]*types.Package) ([]*types.Package, error) { - data, err := ioutil.ReadAll(in) + data, err := readAll(in) if err != nil { return nil, fmt.Errorf("reading export bundle: %v", err) } diff --git a/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/importer.go b/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/importer.go index efe221e7e1..37a7247e26 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/importer.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/gcexportdata/importer.go @@ -23,6 +23,8 @@ import ( // or to control the FileSet or access the imports map populated during // package loading. // +// Deprecated: Use the higher-level API in golang.org/x/tools/go/packages, +// which is more efficient. func NewImporter(fset *token.FileSet, imports map[string]*types.Package) types.ImporterFrom { return importer{fset, imports} } diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go b/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go deleted file mode 100644 index 3ab66830d7..0000000000 --- a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go +++ /dev/null @@ -1,1084 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// This file is a modified copy of $GOROOT/src/go/internal/gcimporter/gcimporter.go, -// but it also contains the original source-based importer code for Go1.6. -// Once we stop supporting 1.6, we can remove that code. - -// Package gcimporter provides various functions for reading -// gc-generated object files that can be used to implement the -// Importer interface defined by the Go 1.5 standard library package. -package gcimporter // import "golang.org/x/tools/go/internal/gcimporter" - -import ( - "bufio" - "errors" - "fmt" - "go/build" - "go/constant" - "go/token" - "go/types" - "io" - "io/ioutil" - "os" - "path/filepath" - "sort" - "strconv" - "strings" - "text/scanner" -) - -const ( - // Enable debug during development: it adds some additional checks, and - // prevents errors from being recovered. - debug = false - - // If trace is set, debugging output is printed to std out. - trace = false -) - -var pkgExts = [...]string{".a", ".o"} - -// FindPkg returns the filename and unique package id for an import -// path based on package information provided by build.Import (using -// the build.Default build.Context). A relative srcDir is interpreted -// relative to the current working directory. -// If no file was found, an empty filename is returned. -// -func FindPkg(path, srcDir string) (filename, id string) { - if path == "" { - return - } - - var noext string - switch { - default: - // "x" -> "$GOPATH/pkg/$GOOS_$GOARCH/x.ext", "x" - // Don't require the source files to be present. - if abs, err := filepath.Abs(srcDir); err == nil { // see issue 14282 - srcDir = abs - } - bp, _ := build.Import(path, srcDir, build.FindOnly|build.AllowBinary) - if bp.PkgObj == "" { - id = path // make sure we have an id to print in error message - return - } - noext = strings.TrimSuffix(bp.PkgObj, ".a") - id = bp.ImportPath - - case build.IsLocalImport(path): - // "./x" -> "/this/directory/x.ext", "/this/directory/x" - noext = filepath.Join(srcDir, path) - id = noext - - case filepath.IsAbs(path): - // for completeness only - go/build.Import - // does not support absolute imports - // "/x" -> "/x.ext", "/x" - noext = path - id = path - } - - if false { // for debugging - if path != id { - fmt.Printf("%s -> %s\n", path, id) - } - } - - // try extensions - for _, ext := range pkgExts { - filename = noext + ext - if f, err := os.Stat(filename); err == nil && !f.IsDir() { - return - } - } - - filename = "" // not found - return -} - -// ImportData imports a package by reading the gc-generated export data, -// adds the corresponding package object to the packages map indexed by id, -// and returns the object. -// -// The packages map must contains all packages already imported. The data -// reader position must be the beginning of the export data section. The -// filename is only used in error messages. -// -// If packages[id] contains the completely imported package, that package -// can be used directly, and there is no need to call this function (but -// there is also no harm but for extra time used). -// -func ImportData(packages map[string]*types.Package, filename, id string, data io.Reader) (pkg *types.Package, err error) { - // support for parser error handling - defer func() { - switch r := recover().(type) { - case nil: - // nothing to do - case importError: - err = r - default: - panic(r) // internal error - } - }() - - var p parser - p.init(filename, id, data, packages) - pkg = p.parseExport() - - return -} - -// Import imports a gc-generated package given its import path and srcDir, adds -// the corresponding package object to the packages map, and returns the object. -// The packages map must contain all packages already imported. -// -func Import(packages map[string]*types.Package, path, srcDir string, lookup func(path string) (io.ReadCloser, error)) (pkg *types.Package, err error) { - var rc io.ReadCloser - var filename, id string - if lookup != nil { - // With custom lookup specified, assume that caller has - // converted path to a canonical import path for use in the map. - if path == "unsafe" { - return types.Unsafe, nil - } - id = path - - // No need to re-import if the package was imported completely before. - if pkg = packages[id]; pkg != nil && pkg.Complete() { - return - } - f, err := lookup(path) - if err != nil { - return nil, err - } - rc = f - } else { - filename, id = FindPkg(path, srcDir) - if filename == "" { - if path == "unsafe" { - return types.Unsafe, nil - } - return nil, fmt.Errorf("can't find import: %q", id) - } - - // no need to re-import if the package was imported completely before - if pkg = packages[id]; pkg != nil && pkg.Complete() { - return - } - - // open file - f, err := os.Open(filename) - if err != nil { - return nil, err - } - defer func() { - if err != nil { - // add file name to error - err = fmt.Errorf("%s: %v", filename, err) - } - }() - rc = f - } - defer rc.Close() - - var hdr string - buf := bufio.NewReader(rc) - if hdr, _, err = FindExportData(buf); err != nil { - return - } - - switch hdr { - case "$$\n": - // Work-around if we don't have a filename; happens only if lookup != nil. - // Either way, the filename is only needed for importer error messages, so - // this is fine. - if filename == "" { - filename = path - } - return ImportData(packages, filename, id, buf) - - case "$$B\n": - var data []byte - data, err = ioutil.ReadAll(buf) - if err != nil { - break - } - - // TODO(gri): allow clients of go/importer to provide a FileSet. - // Or, define a new standard go/types/gcexportdata package. - fset := token.NewFileSet() - - // The indexed export format starts with an 'i'; the older - // binary export format starts with a 'c', 'd', or 'v' - // (from "version"). Select appropriate importer. - if len(data) > 0 && data[0] == 'i' { - _, pkg, err = IImportData(fset, packages, data[1:], id) - } else { - _, pkg, err = BImportData(fset, packages, data, id) - } - - default: - err = fmt.Errorf("unknown export data header: %q", hdr) - } - - return -} - -// ---------------------------------------------------------------------------- -// Parser - -// TODO(gri) Imported objects don't have position information. -// Ideally use the debug table line info; alternatively -// create some fake position (or the position of the -// import). That way error messages referring to imported -// objects can print meaningful information. - -// parser parses the exports inside a gc compiler-produced -// object/archive file and populates its scope with the results. -type parser struct { - scanner scanner.Scanner - tok rune // current token - lit string // literal string; only valid for Ident, Int, String tokens - id string // package id of imported package - sharedPkgs map[string]*types.Package // package id -> package object (across importer) - localPkgs map[string]*types.Package // package id -> package object (just this package) -} - -func (p *parser) init(filename, id string, src io.Reader, packages map[string]*types.Package) { - p.scanner.Init(src) - p.scanner.Error = func(_ *scanner.Scanner, msg string) { p.error(msg) } - p.scanner.Mode = scanner.ScanIdents | scanner.ScanInts | scanner.ScanChars | scanner.ScanStrings | scanner.ScanComments | scanner.SkipComments - p.scanner.Whitespace = 1<<'\t' | 1<<' ' - p.scanner.Filename = filename // for good error messages - p.next() - p.id = id - p.sharedPkgs = packages - if debug { - // check consistency of packages map - for _, pkg := range packages { - if pkg.Name() == "" { - fmt.Printf("no package name for %s\n", pkg.Path()) - } - } - } -} - -func (p *parser) next() { - p.tok = p.scanner.Scan() - switch p.tok { - case scanner.Ident, scanner.Int, scanner.Char, scanner.String, '·': - p.lit = p.scanner.TokenText() - default: - p.lit = "" - } - if debug { - fmt.Printf("%s: %q -> %q\n", scanner.TokenString(p.tok), p.scanner.TokenText(), p.lit) - } -} - -func declTypeName(pkg *types.Package, name string) *types.TypeName { - scope := pkg.Scope() - if obj := scope.Lookup(name); obj != nil { - return obj.(*types.TypeName) - } - obj := types.NewTypeName(token.NoPos, pkg, name, nil) - // a named type may be referred to before the underlying type - // is known - set it up - types.NewNamed(obj, nil, nil) - scope.Insert(obj) - return obj -} - -// ---------------------------------------------------------------------------- -// Error handling - -// Internal errors are boxed as importErrors. -type importError struct { - pos scanner.Position - err error -} - -func (e importError) Error() string { - return fmt.Sprintf("import error %s (byte offset = %d): %s", e.pos, e.pos.Offset, e.err) -} - -func (p *parser) error(err interface{}) { - if s, ok := err.(string); ok { - err = errors.New(s) - } - // panic with a runtime.Error if err is not an error - panic(importError{p.scanner.Pos(), err.(error)}) -} - -func (p *parser) errorf(format string, args ...interface{}) { - p.error(fmt.Sprintf(format, args...)) -} - -func (p *parser) expect(tok rune) string { - lit := p.lit - if p.tok != tok { - p.errorf("expected %s, got %s (%s)", scanner.TokenString(tok), scanner.TokenString(p.tok), lit) - } - p.next() - return lit -} - -func (p *parser) expectSpecial(tok string) { - sep := 'x' // not white space - i := 0 - for i < len(tok) && p.tok == rune(tok[i]) && sep > ' ' { - sep = p.scanner.Peek() // if sep <= ' ', there is white space before the next token - p.next() - i++ - } - if i < len(tok) { - p.errorf("expected %q, got %q", tok, tok[0:i]) - } -} - -func (p *parser) expectKeyword(keyword string) { - lit := p.expect(scanner.Ident) - if lit != keyword { - p.errorf("expected keyword %s, got %q", keyword, lit) - } -} - -// ---------------------------------------------------------------------------- -// Qualified and unqualified names - -// PackageId = string_lit . -// -func (p *parser) parsePackageID() string { - id, err := strconv.Unquote(p.expect(scanner.String)) - if err != nil { - p.error(err) - } - // id == "" stands for the imported package id - // (only known at time of package installation) - if id == "" { - id = p.id - } - return id -} - -// PackageName = ident . -// -func (p *parser) parsePackageName() string { - return p.expect(scanner.Ident) -} - -// dotIdentifier = ( ident | '·' ) { ident | int | '·' } . -func (p *parser) parseDotIdent() string { - ident := "" - if p.tok != scanner.Int { - sep := 'x' // not white space - for (p.tok == scanner.Ident || p.tok == scanner.Int || p.tok == '·') && sep > ' ' { - ident += p.lit - sep = p.scanner.Peek() // if sep <= ' ', there is white space before the next token - p.next() - } - } - if ident == "" { - p.expect(scanner.Ident) // use expect() for error handling - } - return ident -} - -// QualifiedName = "@" PackageId "." ( "?" | dotIdentifier ) . -// -func (p *parser) parseQualifiedName() (id, name string) { - p.expect('@') - id = p.parsePackageID() - p.expect('.') - // Per rev f280b8a485fd (10/2/2013), qualified names may be used for anonymous fields. - if p.tok == '?' { - p.next() - } else { - name = p.parseDotIdent() - } - return -} - -// getPkg returns the package for a given id. If the package is -// not found, create the package and add it to the p.localPkgs -// and p.sharedPkgs maps. name is the (expected) name of the -// package. If name == "", the package name is expected to be -// set later via an import clause in the export data. -// -// id identifies a package, usually by a canonical package path like -// "encoding/json" but possibly by a non-canonical import path like -// "./json". -// -func (p *parser) getPkg(id, name string) *types.Package { - // package unsafe is not in the packages maps - handle explicitly - if id == "unsafe" { - return types.Unsafe - } - - pkg := p.localPkgs[id] - if pkg == nil { - // first import of id from this package - pkg = p.sharedPkgs[id] - if pkg == nil { - // first import of id by this importer; - // add (possibly unnamed) pkg to shared packages - pkg = types.NewPackage(id, name) - p.sharedPkgs[id] = pkg - } - // add (possibly unnamed) pkg to local packages - if p.localPkgs == nil { - p.localPkgs = make(map[string]*types.Package) - } - p.localPkgs[id] = pkg - } else if name != "" { - // package exists already and we have an expected package name; - // make sure names match or set package name if necessary - if pname := pkg.Name(); pname == "" { - pkg.SetName(name) - } else if pname != name { - p.errorf("%s package name mismatch: %s (given) vs %s (expected)", id, pname, name) - } - } - return pkg -} - -// parseExportedName is like parseQualifiedName, but -// the package id is resolved to an imported *types.Package. -// -func (p *parser) parseExportedName() (pkg *types.Package, name string) { - id, name := p.parseQualifiedName() - pkg = p.getPkg(id, "") - return -} - -// ---------------------------------------------------------------------------- -// Types - -// BasicType = identifier . -// -func (p *parser) parseBasicType() types.Type { - id := p.expect(scanner.Ident) - obj := types.Universe.Lookup(id) - if obj, ok := obj.(*types.TypeName); ok { - return obj.Type() - } - p.errorf("not a basic type: %s", id) - return nil -} - -// ArrayType = "[" int_lit "]" Type . -// -func (p *parser) parseArrayType(parent *types.Package) types.Type { - // "[" already consumed and lookahead known not to be "]" - lit := p.expect(scanner.Int) - p.expect(']') - elem := p.parseType(parent) - n, err := strconv.ParseInt(lit, 10, 64) - if err != nil { - p.error(err) - } - return types.NewArray(elem, n) -} - -// MapType = "map" "[" Type "]" Type . -// -func (p *parser) parseMapType(parent *types.Package) types.Type { - p.expectKeyword("map") - p.expect('[') - key := p.parseType(parent) - p.expect(']') - elem := p.parseType(parent) - return types.NewMap(key, elem) -} - -// Name = identifier | "?" | QualifiedName . -// -// For unqualified and anonymous names, the returned package is the parent -// package unless parent == nil, in which case the returned package is the -// package being imported. (The parent package is not nil if the name -// is an unqualified struct field or interface method name belonging to a -// type declared in another package.) -// -// For qualified names, the returned package is nil (and not created if -// it doesn't exist yet) unless materializePkg is set (which creates an -// unnamed package with valid package path). In the latter case, a -// subsequent import clause is expected to provide a name for the package. -// -func (p *parser) parseName(parent *types.Package, materializePkg bool) (pkg *types.Package, name string) { - pkg = parent - if pkg == nil { - pkg = p.sharedPkgs[p.id] - } - switch p.tok { - case scanner.Ident: - name = p.lit - p.next() - case '?': - // anonymous - p.next() - case '@': - // exported name prefixed with package path - pkg = nil - var id string - id, name = p.parseQualifiedName() - if materializePkg { - pkg = p.getPkg(id, "") - } - default: - p.error("name expected") - } - return -} - -func deref(typ types.Type) types.Type { - if p, _ := typ.(*types.Pointer); p != nil { - return p.Elem() - } - return typ -} - -// Field = Name Type [ string_lit ] . -// -func (p *parser) parseField(parent *types.Package) (*types.Var, string) { - pkg, name := p.parseName(parent, true) - - if name == "_" { - // Blank fields should be package-qualified because they - // are unexported identifiers, but gc does not qualify them. - // Assuming that the ident belongs to the current package - // causes types to change during re-exporting, leading - // to spurious "can't assign A to B" errors from go/types. - // As a workaround, pretend all blank fields belong - // to the same unique dummy package. - const blankpkg = "<_>" - pkg = p.getPkg(blankpkg, blankpkg) - } - - typ := p.parseType(parent) - anonymous := false - if name == "" { - // anonymous field - typ must be T or *T and T must be a type name - switch typ := deref(typ).(type) { - case *types.Basic: // basic types are named types - pkg = nil // objects defined in Universe scope have no package - name = typ.Name() - case *types.Named: - name = typ.Obj().Name() - default: - p.errorf("anonymous field expected") - } - anonymous = true - } - tag := "" - if p.tok == scanner.String { - s := p.expect(scanner.String) - var err error - tag, err = strconv.Unquote(s) - if err != nil { - p.errorf("invalid struct tag %s: %s", s, err) - } - } - return types.NewField(token.NoPos, pkg, name, typ, anonymous), tag -} - -// StructType = "struct" "{" [ FieldList ] "}" . -// FieldList = Field { ";" Field } . -// -func (p *parser) parseStructType(parent *types.Package) types.Type { - var fields []*types.Var - var tags []string - - p.expectKeyword("struct") - p.expect('{') - for i := 0; p.tok != '}' && p.tok != scanner.EOF; i++ { - if i > 0 { - p.expect(';') - } - fld, tag := p.parseField(parent) - if tag != "" && tags == nil { - tags = make([]string, i) - } - if tags != nil { - tags = append(tags, tag) - } - fields = append(fields, fld) - } - p.expect('}') - - return types.NewStruct(fields, tags) -} - -// Parameter = ( identifier | "?" ) [ "..." ] Type [ string_lit ] . -// -func (p *parser) parseParameter() (par *types.Var, isVariadic bool) { - _, name := p.parseName(nil, false) - // remove gc-specific parameter numbering - if i := strings.Index(name, "·"); i >= 0 { - name = name[:i] - } - if p.tok == '.' { - p.expectSpecial("...") - isVariadic = true - } - typ := p.parseType(nil) - if isVariadic { - typ = types.NewSlice(typ) - } - // ignore argument tag (e.g. "noescape") - if p.tok == scanner.String { - p.next() - } - // TODO(gri) should we provide a package? - par = types.NewVar(token.NoPos, nil, name, typ) - return -} - -// Parameters = "(" [ ParameterList ] ")" . -// ParameterList = { Parameter "," } Parameter . -// -func (p *parser) parseParameters() (list []*types.Var, isVariadic bool) { - p.expect('(') - for p.tok != ')' && p.tok != scanner.EOF { - if len(list) > 0 { - p.expect(',') - } - par, variadic := p.parseParameter() - list = append(list, par) - if variadic { - if isVariadic { - p.error("... not on final argument") - } - isVariadic = true - } - } - p.expect(')') - - return -} - -// Signature = Parameters [ Result ] . -// Result = Type | Parameters . -// -func (p *parser) parseSignature(recv *types.Var) *types.Signature { - params, isVariadic := p.parseParameters() - - // optional result type - var results []*types.Var - if p.tok == '(' { - var variadic bool - results, variadic = p.parseParameters() - if variadic { - p.error("... not permitted on result type") - } - } - - return types.NewSignature(recv, types.NewTuple(params...), types.NewTuple(results...), isVariadic) -} - -// InterfaceType = "interface" "{" [ MethodList ] "}" . -// MethodList = Method { ";" Method } . -// Method = Name Signature . -// -// The methods of embedded interfaces are always "inlined" -// by the compiler and thus embedded interfaces are never -// visible in the export data. -// -func (p *parser) parseInterfaceType(parent *types.Package) types.Type { - var methods []*types.Func - - p.expectKeyword("interface") - p.expect('{') - for i := 0; p.tok != '}' && p.tok != scanner.EOF; i++ { - if i > 0 { - p.expect(';') - } - pkg, name := p.parseName(parent, true) - sig := p.parseSignature(nil) - methods = append(methods, types.NewFunc(token.NoPos, pkg, name, sig)) - } - p.expect('}') - - // Complete requires the type's embedded interfaces to be fully defined, - // but we do not define any - return newInterface(methods, nil).Complete() -} - -// ChanType = ( "chan" [ "<-" ] | "<-" "chan" ) Type . -// -func (p *parser) parseChanType(parent *types.Package) types.Type { - dir := types.SendRecv - if p.tok == scanner.Ident { - p.expectKeyword("chan") - if p.tok == '<' { - p.expectSpecial("<-") - dir = types.SendOnly - } - } else { - p.expectSpecial("<-") - p.expectKeyword("chan") - dir = types.RecvOnly - } - elem := p.parseType(parent) - return types.NewChan(dir, elem) -} - -// Type = -// BasicType | TypeName | ArrayType | SliceType | StructType | -// PointerType | FuncType | InterfaceType | MapType | ChanType | -// "(" Type ")" . -// -// BasicType = ident . -// TypeName = ExportedName . -// SliceType = "[" "]" Type . -// PointerType = "*" Type . -// FuncType = "func" Signature . -// -func (p *parser) parseType(parent *types.Package) types.Type { - switch p.tok { - case scanner.Ident: - switch p.lit { - default: - return p.parseBasicType() - case "struct": - return p.parseStructType(parent) - case "func": - // FuncType - p.next() - return p.parseSignature(nil) - case "interface": - return p.parseInterfaceType(parent) - case "map": - return p.parseMapType(parent) - case "chan": - return p.parseChanType(parent) - } - case '@': - // TypeName - pkg, name := p.parseExportedName() - return declTypeName(pkg, name).Type() - case '[': - p.next() // look ahead - if p.tok == ']' { - // SliceType - p.next() - return types.NewSlice(p.parseType(parent)) - } - return p.parseArrayType(parent) - case '*': - // PointerType - p.next() - return types.NewPointer(p.parseType(parent)) - case '<': - return p.parseChanType(parent) - case '(': - // "(" Type ")" - p.next() - typ := p.parseType(parent) - p.expect(')') - return typ - } - p.errorf("expected type, got %s (%q)", scanner.TokenString(p.tok), p.lit) - return nil -} - -// ---------------------------------------------------------------------------- -// Declarations - -// ImportDecl = "import" PackageName PackageId . -// -func (p *parser) parseImportDecl() { - p.expectKeyword("import") - name := p.parsePackageName() - p.getPkg(p.parsePackageID(), name) -} - -// int_lit = [ "+" | "-" ] { "0" ... "9" } . -// -func (p *parser) parseInt() string { - s := "" - switch p.tok { - case '-': - s = "-" - p.next() - case '+': - p.next() - } - return s + p.expect(scanner.Int) -} - -// number = int_lit [ "p" int_lit ] . -// -func (p *parser) parseNumber() (typ *types.Basic, val constant.Value) { - // mantissa - mant := constant.MakeFromLiteral(p.parseInt(), token.INT, 0) - if mant == nil { - panic("invalid mantissa") - } - - if p.lit == "p" { - // exponent (base 2) - p.next() - exp, err := strconv.ParseInt(p.parseInt(), 10, 0) - if err != nil { - p.error(err) - } - if exp < 0 { - denom := constant.MakeInt64(1) - denom = constant.Shift(denom, token.SHL, uint(-exp)) - typ = types.Typ[types.UntypedFloat] - val = constant.BinaryOp(mant, token.QUO, denom) - return - } - if exp > 0 { - mant = constant.Shift(mant, token.SHL, uint(exp)) - } - typ = types.Typ[types.UntypedFloat] - val = mant - return - } - - typ = types.Typ[types.UntypedInt] - val = mant - return -} - -// ConstDecl = "const" ExportedName [ Type ] "=" Literal . -// Literal = bool_lit | int_lit | float_lit | complex_lit | rune_lit | string_lit . -// bool_lit = "true" | "false" . -// complex_lit = "(" float_lit "+" float_lit "i" ")" . -// rune_lit = "(" int_lit "+" int_lit ")" . -// string_lit = `"` { unicode_char } `"` . -// -func (p *parser) parseConstDecl() { - p.expectKeyword("const") - pkg, name := p.parseExportedName() - - var typ0 types.Type - if p.tok != '=' { - // constant types are never structured - no need for parent type - typ0 = p.parseType(nil) - } - - p.expect('=') - var typ types.Type - var val constant.Value - switch p.tok { - case scanner.Ident: - // bool_lit - if p.lit != "true" && p.lit != "false" { - p.error("expected true or false") - } - typ = types.Typ[types.UntypedBool] - val = constant.MakeBool(p.lit == "true") - p.next() - - case '-', scanner.Int: - // int_lit - typ, val = p.parseNumber() - - case '(': - // complex_lit or rune_lit - p.next() - if p.tok == scanner.Char { - p.next() - p.expect('+') - typ = types.Typ[types.UntypedRune] - _, val = p.parseNumber() - p.expect(')') - break - } - _, re := p.parseNumber() - p.expect('+') - _, im := p.parseNumber() - p.expectKeyword("i") - p.expect(')') - typ = types.Typ[types.UntypedComplex] - val = constant.BinaryOp(re, token.ADD, constant.MakeImag(im)) - - case scanner.Char: - // rune_lit - typ = types.Typ[types.UntypedRune] - val = constant.MakeFromLiteral(p.lit, token.CHAR, 0) - p.next() - - case scanner.String: - // string_lit - typ = types.Typ[types.UntypedString] - val = constant.MakeFromLiteral(p.lit, token.STRING, 0) - p.next() - - default: - p.errorf("expected literal got %s", scanner.TokenString(p.tok)) - } - - if typ0 == nil { - typ0 = typ - } - - pkg.Scope().Insert(types.NewConst(token.NoPos, pkg, name, typ0, val)) -} - -// TypeDecl = "type" ExportedName Type . -// -func (p *parser) parseTypeDecl() { - p.expectKeyword("type") - pkg, name := p.parseExportedName() - obj := declTypeName(pkg, name) - - // The type object may have been imported before and thus already - // have a type associated with it. We still need to parse the type - // structure, but throw it away if the object already has a type. - // This ensures that all imports refer to the same type object for - // a given type declaration. - typ := p.parseType(pkg) - - if name := obj.Type().(*types.Named); name.Underlying() == nil { - name.SetUnderlying(typ) - } -} - -// VarDecl = "var" ExportedName Type . -// -func (p *parser) parseVarDecl() { - p.expectKeyword("var") - pkg, name := p.parseExportedName() - typ := p.parseType(pkg) - pkg.Scope().Insert(types.NewVar(token.NoPos, pkg, name, typ)) -} - -// Func = Signature [ Body ] . -// Body = "{" ... "}" . -// -func (p *parser) parseFunc(recv *types.Var) *types.Signature { - sig := p.parseSignature(recv) - if p.tok == '{' { - p.next() - for i := 1; i > 0; p.next() { - switch p.tok { - case '{': - i++ - case '}': - i-- - } - } - } - return sig -} - -// MethodDecl = "func" Receiver Name Func . -// Receiver = "(" ( identifier | "?" ) [ "*" ] ExportedName ")" . -// -func (p *parser) parseMethodDecl() { - // "func" already consumed - p.expect('(') - recv, _ := p.parseParameter() // receiver - p.expect(')') - - // determine receiver base type object - base := deref(recv.Type()).(*types.Named) - - // parse method name, signature, and possibly inlined body - _, name := p.parseName(nil, false) - sig := p.parseFunc(recv) - - // methods always belong to the same package as the base type object - pkg := base.Obj().Pkg() - - // add method to type unless type was imported before - // and method exists already - // TODO(gri) This leads to a quadratic algorithm - ok for now because method counts are small. - base.AddMethod(types.NewFunc(token.NoPos, pkg, name, sig)) -} - -// FuncDecl = "func" ExportedName Func . -// -func (p *parser) parseFuncDecl() { - // "func" already consumed - pkg, name := p.parseExportedName() - typ := p.parseFunc(nil) - pkg.Scope().Insert(types.NewFunc(token.NoPos, pkg, name, typ)) -} - -// Decl = [ ImportDecl | ConstDecl | TypeDecl | VarDecl | FuncDecl | MethodDecl ] "\n" . -// -func (p *parser) parseDecl() { - if p.tok == scanner.Ident { - switch p.lit { - case "import": - p.parseImportDecl() - case "const": - p.parseConstDecl() - case "type": - p.parseTypeDecl() - case "var": - p.parseVarDecl() - case "func": - p.next() // look ahead - if p.tok == '(' { - p.parseMethodDecl() - } else { - p.parseFuncDecl() - } - } - } - p.expect('\n') -} - -// ---------------------------------------------------------------------------- -// Export - -// Export = "PackageClause { Decl } "$$" . -// PackageClause = "package" PackageName [ "safe" ] "\n" . -// -func (p *parser) parseExport() *types.Package { - p.expectKeyword("package") - name := p.parsePackageName() - if p.tok == scanner.Ident && p.lit == "safe" { - // package was compiled with -u option - ignore - p.next() - } - p.expect('\n') - - pkg := p.getPkg(p.id, name) - - for p.tok != '$' && p.tok != scanner.EOF { - p.parseDecl() - } - - if ch := p.scanner.Peek(); p.tok != '$' || ch != '$' { - // don't call next()/expect() since reading past the - // export data may cause scanner errors (e.g. NUL chars) - p.errorf("expected '$$', got %s %c", scanner.TokenString(p.tok), ch) - } - - if n := p.scanner.ErrorCount; n != 0 { - p.errorf("expected no scanner errors, got %d", n) - } - - // Record all locally referenced packages as imports. - var imports []*types.Package - for id, pkg2 := range p.localPkgs { - if pkg2.Name() == "" { - p.errorf("%s package has no name", id) - } - if id == p.id { - continue // avoid self-edge - } - imports = append(imports, pkg2) - } - sort.Sort(byPath(imports)) - pkg.SetImports(imports) - - // package was imported completely and without errors - pkg.MarkComplete() - - return pkg -} - -type byPath []*types.Package - -func (a byPath) Len() int { return len(a) } -func (a byPath) Swap(i, j int) { a[i], a[j] = a[j], a[i] } -func (a byPath) Less(i, j int) bool { return a[i].Path() < a[j].Path() } diff --git a/tools/metrics/vendor/golang.org/x/tools/go/packages/doc.go b/tools/metrics/vendor/golang.org/x/tools/go/packages/doc.go index 4bfe28a51f..da4ab89fe6 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/packages/doc.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/packages/doc.go @@ -67,7 +67,6 @@ Most tools should pass their command-line arguments (after any flags) uninterpreted to the loader, so that the loader can interpret them according to the conventions of the underlying build system. See the Example function for typical usage. - */ package packages // import "golang.org/x/tools/go/packages" diff --git a/tools/metrics/vendor/golang.org/x/tools/go/packages/golist.go b/tools/metrics/vendor/golang.org/x/tools/go/packages/golist.go index 0e1e7f11fe..6bb7168d2e 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/packages/golist.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/packages/golist.go @@ -26,7 +26,6 @@ import ( "golang.org/x/tools/go/internal/packagesdriver" "golang.org/x/tools/internal/gocommand" "golang.org/x/tools/internal/packagesinternal" - "golang.org/x/xerrors" ) // debug controls verbose logging. @@ -61,6 +60,7 @@ func (r *responseDeduper) addAll(dr *driverResponse) { for _, root := range dr.Roots { r.addRoot(root) } + r.dr.GoVersion = dr.GoVersion } func (r *responseDeduper) addPackage(p *Package) { @@ -303,11 +303,12 @@ func (state *golistState) runContainsQueries(response *responseDeduper, queries } dirResponse, err := state.createDriverResponse(pattern) - // If there was an error loading the package, or the package is returned - // with errors, try to load the file as an ad-hoc package. + // If there was an error loading the package, or no packages are returned, + // or the package is returned with errors, try to load the file as an + // ad-hoc package. // Usually the error will appear in a returned package, but may not if we're // in module mode and the ad-hoc is located outside a module. - if err != nil || len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].GoFiles) == 0 && + if err != nil || len(dirResponse.Packages) == 0 || len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].GoFiles) == 0 && len(dirResponse.Packages[0].Errors) == 1 { var queryErr error if dirResponse, queryErr = state.adhocPackage(pattern, query); queryErr != nil { @@ -393,6 +394,8 @@ type jsonPackage struct { CompiledGoFiles []string IgnoredGoFiles []string IgnoredOtherFiles []string + EmbedPatterns []string + EmbedFiles []string CFiles []string CgoFiles []string CXXFiles []string @@ -444,15 +447,22 @@ func (state *golistState) createDriverResponse(words ...string) (*driverResponse // Run "go list" for complete // information on the specified packages. - buf, err := state.invokeGo("list", golistargs(state.cfg, words)...) + goVersion, err := state.getGoVersion() if err != nil { return nil, err } + buf, err := state.invokeGo("list", golistargs(state.cfg, words, goVersion)...) + if err != nil { + return nil, err + } + seen := make(map[string]*jsonPackage) pkgs := make(map[string]*Package) additionalErrors := make(map[string][]Error) // Decode the JSON and convert it to Package form. - var response driverResponse + response := &driverResponse{ + GoVersion: goVersion, + } for dec := json.NewDecoder(buf); dec.More(); { p := new(jsonPackage) if err := dec.Decode(p); err != nil { @@ -565,6 +575,8 @@ func (state *golistState) createDriverResponse(words ...string) (*driverResponse GoFiles: absJoin(p.Dir, p.GoFiles, p.CgoFiles), CompiledGoFiles: absJoin(p.Dir, p.CompiledGoFiles), OtherFiles: absJoin(p.Dir, otherFiles(p)...), + EmbedFiles: absJoin(p.Dir, p.EmbedFiles), + EmbedPatterns: absJoin(p.Dir, p.EmbedPatterns), IgnoredFiles: absJoin(p.Dir, p.IgnoredGoFiles, p.IgnoredOtherFiles), forTest: p.ForTest, depsErrors: p.DepsErrors, @@ -592,17 +604,12 @@ func (state *golistState) createDriverResponse(words ...string) (*driverResponse // Work around https://golang.org/issue/28749: // cmd/go puts assembly, C, and C++ files in CompiledGoFiles. - // Filter out any elements of CompiledGoFiles that are also in OtherFiles. - // We have to keep this workaround in place until go1.12 is a distant memory. - if len(pkg.OtherFiles) > 0 { - other := make(map[string]bool, len(pkg.OtherFiles)) - for _, f := range pkg.OtherFiles { - other[f] = true - } - + // Remove files from CompiledGoFiles that are non-go files + // (or are not files that look like they are from the cache). + if len(pkg.CompiledGoFiles) > 0 { out := pkg.CompiledGoFiles[:0] for _, f := range pkg.CompiledGoFiles { - if other[f] { + if ext := filepath.Ext(f); ext != ".go" && ext != "" { // ext == "" means the file is from the cache, so probably cgo-processed file continue } out = append(out, f) @@ -722,7 +729,7 @@ func (state *golistState) createDriverResponse(words ...string) (*driverResponse } sort.Slice(response.Packages, func(i, j int) bool { return response.Packages[i].ID < response.Packages[j].ID }) - return &response, nil + return response, nil } func (state *golistState) shouldAddFilenameFromError(p *jsonPackage) bool { @@ -748,6 +755,7 @@ func (state *golistState) shouldAddFilenameFromError(p *jsonPackage) bool { return len(p.Error.ImportStack) == 0 || p.Error.ImportStack[len(p.Error.ImportStack)-1] == p.ImportPath } +// getGoVersion returns the effective minor version of the go command. func (state *golistState) getGoVersion() (int, error) { state.goVersionOnce.Do(func() { state.goVersion, state.goVersionError = gocommand.GoVersion(state.ctx, state.cfgInvocation(), state.cfg.gocmdRunner) @@ -805,17 +813,83 @@ func absJoin(dir string, fileses ...[]string) (res []string) { return res } -func golistargs(cfg *Config, words []string) []string { +func jsonFlag(cfg *Config, goVersion int) string { + if goVersion < 19 { + return "-json" + } + var fields []string + added := make(map[string]bool) + addFields := func(fs ...string) { + for _, f := range fs { + if !added[f] { + added[f] = true + fields = append(fields, f) + } + } + } + addFields("Name", "ImportPath", "Error") // These fields are always needed + if cfg.Mode&NeedFiles != 0 || cfg.Mode&NeedTypes != 0 { + addFields("Dir", "GoFiles", "IgnoredGoFiles", "IgnoredOtherFiles", "CFiles", + "CgoFiles", "CXXFiles", "MFiles", "HFiles", "FFiles", "SFiles", + "SwigFiles", "SwigCXXFiles", "SysoFiles") + if cfg.Tests { + addFields("TestGoFiles", "XTestGoFiles") + } + } + if cfg.Mode&NeedTypes != 0 { + // CompiledGoFiles seems to be required for the test case TestCgoNoSyntax, + // even when -compiled isn't passed in. + // TODO(#52435): Should we make the test ask for -compiled, or automatically + // request CompiledGoFiles in certain circumstances? + addFields("Dir", "CompiledGoFiles") + } + if cfg.Mode&NeedCompiledGoFiles != 0 { + addFields("Dir", "CompiledGoFiles", "Export") + } + if cfg.Mode&NeedImports != 0 { + // When imports are requested, DepOnly is used to distinguish between packages + // explicitly requested and transitive imports of those packages. + addFields("DepOnly", "Imports", "ImportMap") + if cfg.Tests { + addFields("TestImports", "XTestImports") + } + } + if cfg.Mode&NeedDeps != 0 { + addFields("DepOnly") + } + if usesExportData(cfg) { + // Request Dir in the unlikely case Export is not absolute. + addFields("Dir", "Export") + } + if cfg.Mode&needInternalForTest != 0 { + addFields("ForTest") + } + if cfg.Mode&needInternalDepsErrors != 0 { + addFields("DepsErrors") + } + if cfg.Mode&NeedModule != 0 { + addFields("Module") + } + if cfg.Mode&NeedEmbedFiles != 0 { + addFields("EmbedFiles") + } + if cfg.Mode&NeedEmbedPatterns != 0 { + addFields("EmbedPatterns") + } + return "-json=" + strings.Join(fields, ",") +} + +func golistargs(cfg *Config, words []string, goVersion int) []string { const findFlags = NeedImports | NeedTypes | NeedSyntax | NeedTypesInfo fullargs := []string{ - "-e", "-json", + "-e", jsonFlag(cfg, goVersion), fmt.Sprintf("-compiled=%t", cfg.Mode&(NeedCompiledGoFiles|NeedSyntax|NeedTypes|NeedTypesInfo|NeedTypesSizes) != 0), fmt.Sprintf("-test=%t", cfg.Tests), fmt.Sprintf("-export=%t", usesExportData(cfg)), fmt.Sprintf("-deps=%t", cfg.Mode&NeedImports != 0), // go list doesn't let you pass -test and -find together, // probably because you'd just get the TestMain. - fmt.Sprintf("-find=%t", !cfg.Tests && cfg.Mode&findFlags == 0), + fmt.Sprintf("-find=%t", !cfg.Tests && cfg.Mode&findFlags == 0 && !usesExportData(cfg)), } fullargs = append(fullargs, cfg.BuildFlags...) fullargs = append(fullargs, "--") @@ -879,7 +953,7 @@ func (state *golistState) invokeGo(verb string, args ...string) (*bytes.Buffer, if !ok { // Catastrophic error: // - context cancellation - return nil, xerrors.Errorf("couldn't run 'go': %w", err) + return nil, fmt.Errorf("couldn't run 'go': %w", err) } // Old go version? diff --git a/tools/metrics/vendor/golang.org/x/tools/go/packages/loadmode_string.go b/tools/metrics/vendor/golang.org/x/tools/go/packages/loadmode_string.go index 7ea37e7eea..5c080d21b5 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/packages/loadmode_string.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/packages/loadmode_string.go @@ -15,7 +15,7 @@ var allModes = []LoadMode{ NeedCompiledGoFiles, NeedImports, NeedDeps, - NeedExportsFile, + NeedExportFile, NeedTypes, NeedSyntax, NeedTypesInfo, @@ -28,7 +28,7 @@ var modeStrings = []string{ "NeedCompiledGoFiles", "NeedImports", "NeedDeps", - "NeedExportsFile", + "NeedExportFile", "NeedTypes", "NeedSyntax", "NeedTypesInfo", diff --git a/tools/metrics/vendor/golang.org/x/tools/go/packages/packages.go b/tools/metrics/vendor/golang.org/x/tools/go/packages/packages.go index 1b5424e78f..0f1505b808 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/packages/packages.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/packages/packages.go @@ -15,10 +15,12 @@ import ( "go/scanner" "go/token" "go/types" + "io" "io/ioutil" "log" "os" "path/filepath" + "runtime" "strings" "sync" "time" @@ -39,9 +41,6 @@ import ( // Load may return more information than requested. type LoadMode int -// TODO(matloob): When a V2 of go/packages is released, rename NeedExportsFile to -// NeedExportFile to make it consistent with the Package field it's adding. - const ( // NeedName adds Name and PkgPath. NeedName LoadMode = 1 << iota @@ -59,8 +58,8 @@ const ( // NeedDeps adds the fields requested by the LoadMode in the packages in Imports. NeedDeps - // NeedExportsFile adds ExportFile. - NeedExportsFile + // NeedExportFile adds ExportFile. + NeedExportFile // NeedTypes adds Types, Fset, and IllTyped. NeedTypes @@ -74,12 +73,25 @@ const ( // NeedTypesSizes adds TypesSizes. NeedTypesSizes + // needInternalDepsErrors adds the internal deps errors field for use by gopls. + needInternalDepsErrors + + // needInternalForTest adds the internal forTest field. + // Tests must also be set on the context for this field to be populated. + needInternalForTest + // typecheckCgo enables full support for type checking cgo. Requires Go 1.15+. // Modifies CompiledGoFiles and Types, and has no effect on its own. typecheckCgo // NeedModule adds Module. NeedModule + + // NeedEmbedFiles adds EmbedFiles. + NeedEmbedFiles + + // NeedEmbedPatterns adds EmbedPatterns. + NeedEmbedPatterns ) const ( @@ -102,6 +114,9 @@ const ( // Deprecated: LoadAllSyntax exists for historical compatibility // and should not be used. Please directly specify the needed fields using the Need values. LoadAllSyntax = LoadSyntax | NeedDeps + + // Deprecated: NeedExportsFile is a historical misspelling of NeedExportFile. + NeedExportsFile = NeedExportFile ) // A Config specifies details about how packages should be loaded. @@ -220,6 +235,11 @@ type driverResponse struct { // Imports will be connected and then type and syntax information added in a // later pass (see refine). Packages []*Package + + // GoVersion is the minor version number used by the driver + // (e.g. the go command on the PATH) when selecting .go files. + // Zero means unknown. + GoVersion int } // Load loads and returns the Go packages named by the given patterns. @@ -243,7 +263,7 @@ func Load(cfg *Config, patterns ...string) ([]*Package, error) { return nil, err } l.sizes = response.Sizes - return l.refine(response.Roots, response.Packages...) + return l.refine(response) } // defaultDriver is a driver that implements go/packages' fallback behavior. @@ -284,6 +304,9 @@ type Package struct { // of the package, or while parsing or type-checking its files. Errors []Error + // TypeErrors contains the subset of errors produced during type checking. + TypeErrors []types.Error + // GoFiles lists the absolute file paths of the package's Go source files. GoFiles []string @@ -296,6 +319,14 @@ type Package struct { // including assembly, C, C++, Fortran, Objective-C, SWIG, and so on. OtherFiles []string + // EmbedFiles lists the absolute file paths of the package's files + // embedded with go:embed. + EmbedFiles []string + + // EmbedPatterns lists the absolute file patterns of the package's + // files embedded with go:embed. + EmbedPatterns []string + // IgnoredFiles lists source files that are not part of the package // using the current build configuration but that might be part of // the package using other build configurations. @@ -389,6 +420,8 @@ func init() { config.(*Config).modFlag = value } packagesinternal.TypecheckCgo = int(typecheckCgo) + packagesinternal.DepsErrors = int(needInternalDepsErrors) + packagesinternal.ForTest = int(needInternalForTest) } // An Error describes a problem with a package's metadata, syntax, or types. @@ -431,6 +464,8 @@ type flatPackage struct { GoFiles []string `json:",omitempty"` CompiledGoFiles []string `json:",omitempty"` OtherFiles []string `json:",omitempty"` + EmbedFiles []string `json:",omitempty"` + EmbedPatterns []string `json:",omitempty"` IgnoredFiles []string `json:",omitempty"` ExportFile string `json:",omitempty"` Imports map[string]string `json:",omitempty"` @@ -454,6 +489,8 @@ func (p *Package) MarshalJSON() ([]byte, error) { GoFiles: p.GoFiles, CompiledGoFiles: p.CompiledGoFiles, OtherFiles: p.OtherFiles, + EmbedFiles: p.EmbedFiles, + EmbedPatterns: p.EmbedPatterns, IgnoredFiles: p.IgnoredFiles, ExportFile: p.ExportFile, } @@ -481,6 +518,8 @@ func (p *Package) UnmarshalJSON(b []byte) error { GoFiles: flat.GoFiles, CompiledGoFiles: flat.CompiledGoFiles, OtherFiles: flat.OtherFiles, + EmbedFiles: flat.EmbedFiles, + EmbedPatterns: flat.EmbedPatterns, ExportFile: flat.ExportFile, } if len(flat.Imports) > 0 { @@ -503,6 +542,7 @@ type loaderPackage struct { needsrc bool // load from source (Mode >= LoadTypes) needtypes bool // type information is either requested or depended on initial bool // package was matched by a pattern + goVersion int // minor version number of go command on PATH } // loader holds the working state of a single call to load. @@ -589,7 +629,8 @@ func newLoader(cfg *Config) *loader { // refine connects the supplied packages into a graph and then adds type and // and syntax information as requested by the LoadMode. -func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { +func (ld *loader) refine(response *driverResponse) ([]*Package, error) { + roots := response.Roots rootMap := make(map[string]int, len(roots)) for i, root := range roots { rootMap[root] = i @@ -597,7 +638,7 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { ld.pkgs = make(map[string]*loaderPackage) // first pass, fixup and build the map and roots var initial = make([]*loaderPackage, len(roots)) - for _, pkg := range list { + for _, pkg := range response.Packages { rootIndex := -1 if i, found := rootMap[pkg.ID]; found { rootIndex = i @@ -614,11 +655,12 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { needsrc := ((ld.Mode&(NeedSyntax|NeedTypesInfo) != 0 && (rootIndex >= 0 || ld.Mode&NeedDeps != 0)) || // ... or if we need types and the exportData is invalid. We fall back to (incompletely) // typechecking packages from source if they fail to compile. - (ld.Mode&NeedTypes|NeedTypesInfo != 0 && exportDataInvalid)) && pkg.PkgPath != "unsafe" + (ld.Mode&(NeedTypes|NeedTypesInfo) != 0 && exportDataInvalid)) && pkg.PkgPath != "unsafe" lpkg := &loaderPackage{ Package: pkg, needtypes: needtypes, needsrc: needsrc, + goVersion: response.GoVersion, } ld.pkgs[lpkg.ID] = lpkg if rootIndex >= 0 { @@ -752,13 +794,19 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { ld.pkgs[i].OtherFiles = nil ld.pkgs[i].IgnoredFiles = nil } + if ld.requestedMode&NeedEmbedFiles == 0 { + ld.pkgs[i].EmbedFiles = nil + } + if ld.requestedMode&NeedEmbedPatterns == 0 { + ld.pkgs[i].EmbedPatterns = nil + } if ld.requestedMode&NeedCompiledGoFiles == 0 { ld.pkgs[i].CompiledGoFiles = nil } if ld.requestedMode&NeedImports == 0 { ld.pkgs[i].Imports = nil } - if ld.requestedMode&NeedExportsFile == 0 { + if ld.requestedMode&NeedExportFile == 0 { ld.pkgs[i].ExportFile = "" } if ld.requestedMode&NeedTypes == 0 { @@ -830,12 +878,19 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { // never has to create a types.Package for an indirect dependency, // which would then require that such created packages be explicitly // inserted back into the Import graph as a final step after export data loading. + // (Hence this return is after the Types assignment.) // The Diamond test exercises this case. if !lpkg.needtypes && !lpkg.needsrc { return } if !lpkg.needsrc { - ld.loadFromExportData(lpkg) + if err := ld.loadFromExportData(lpkg); err != nil { + lpkg.Errors = append(lpkg.Errors, Error{ + Pos: "-", + Msg: err.Error(), + Kind: UnknownError, // e.g. can't find/open/parse export data + }) + } return // not a source package, don't get syntax trees } @@ -867,6 +922,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { case types.Error: // from type checker + lpkg.TypeErrors = append(lpkg.TypeErrors, err) errs = append(errs, Error{ Pos: err.Fset.Position(err.Pos).String(), Msg: err.Msg, @@ -888,11 +944,41 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { lpkg.Errors = append(lpkg.Errors, errs...) } + // If the go command on the PATH is newer than the runtime, + // then the go/{scanner,ast,parser,types} packages from the + // standard library may be unable to process the files + // selected by go list. + // + // There is currently no way to downgrade the effective + // version of the go command (see issue 52078), so we proceed + // with the newer go command but, in case of parse or type + // errors, we emit an additional diagnostic. + // + // See: + // - golang.org/issue/52078 (flag to set release tags) + // - golang.org/issue/50825 (gopls legacy version support) + // - golang.org/issue/55883 (go/packages confusing error) + // + // Should we assert a hard minimum of (currently) go1.16 here? + var runtimeVersion int + if _, err := fmt.Sscanf(runtime.Version(), "go1.%d", &runtimeVersion); err == nil && runtimeVersion < lpkg.goVersion { + defer func() { + if len(lpkg.Errors) > 0 { + appendError(Error{ + Pos: "-", + Msg: fmt.Sprintf("This application uses version go1.%d of the source-processing packages but runs version go1.%d of 'go list'. It may fail to process source files that rely on newer language features. If so, rebuild the application using a newer version of Go.", runtimeVersion, lpkg.goVersion), + Kind: UnknownError, + }) + } + }() + } + if ld.Config.Mode&NeedTypes != 0 && len(lpkg.CompiledGoFiles) == 0 && lpkg.ExportFile != "" { // The config requested loading sources and types, but sources are missing. // Add an error to the package and fall back to loading from export data. appendError(Error{"-", fmt.Sprintf("sources missing for package %s", lpkg.ID), ParseError}) - ld.loadFromExportData(lpkg) + _ = ld.loadFromExportData(lpkg) // ignore any secondary errors + return // can't get syntax trees for this package } @@ -946,7 +1032,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { tc := &types.Config{ Importer: importer, - // Type-check bodies of functions only in non-initial packages. + // Type-check bodies of functions only in initial packages. // Example: for import graph A->B->C and initial packages {A,C}, // we can ignore function bodies in B. IgnoreFuncBodies: ld.Mode&NeedDeps == 0 && !lpkg.initial, @@ -1053,7 +1139,6 @@ func (ld *loader) parseFile(filename string) (*ast.File, error) { // // Because files are scanned in parallel, the token.Pos // positions of the resulting ast.Files are not ordered. -// func (ld *loader) parseFiles(filenames []string) ([]*ast.File, []error) { var wg sync.WaitGroup n := len(filenames) @@ -1097,7 +1182,6 @@ func (ld *loader) parseFiles(filenames []string) ([]*ast.File, []error) { // sameFile returns true if x and y have the same basename and denote // the same file. -// func sameFile(x, y string) bool { if x == y { // It could be the case that y doesn't exist. @@ -1118,9 +1202,10 @@ func sameFile(x, y string) bool { return false } -// loadFromExportData returns type information for the specified +// loadFromExportData ensures that type information is present for the specified // package, loading it from an export data file on the first request. -func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error) { +// On success it sets lpkg.Types to a new Package. +func (ld *loader) loadFromExportData(lpkg *loaderPackage) error { if lpkg.PkgPath == "" { log.Fatalf("internal error: Package %s has no PkgPath", lpkg) } @@ -1131,8 +1216,8 @@ func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error // must be sequential. (Finer-grained locking would require // changes to the gcexportdata API.) // - // The exportMu lock guards the Package.Pkg field and the - // types.Package it points to, for each Package in the graph. + // The exportMu lock guards the lpkg.Types field and the + // types.Package it points to, for each loaderPackage in the graph. // // Not all accesses to Package.Pkg need to be protected by exportMu: // graph ordering ensures that direct dependencies of source @@ -1141,18 +1226,18 @@ func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error defer ld.exportMu.Unlock() if tpkg := lpkg.Types; tpkg != nil && tpkg.Complete() { - return tpkg, nil // cache hit + return nil // cache hit } lpkg.IllTyped = true // fail safe if lpkg.ExportFile == "" { // Errors while building export data will have been printed to stderr. - return nil, fmt.Errorf("no export data file") + return fmt.Errorf("no export data file") } f, err := os.Open(lpkg.ExportFile) if err != nil { - return nil, err + return err } defer f.Close() @@ -1164,7 +1249,7 @@ func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error // queries.) r, err := gcexportdata.NewReader(f) if err != nil { - return nil, fmt.Errorf("reading %s: %v", lpkg.ExportFile, err) + return fmt.Errorf("reading %s: %v", lpkg.ExportFile, err) } // Build the view. @@ -1208,31 +1293,26 @@ func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error // (May modify incomplete packages in view but not create new ones.) tpkg, err := gcexportdata.Read(r, ld.Fset, view, lpkg.PkgPath) if err != nil { - return nil, fmt.Errorf("reading %s: %v", lpkg.ExportFile, err) + return fmt.Errorf("reading %s: %v", lpkg.ExportFile, err) + } + if _, ok := view["go.shape"]; ok { + // Account for the pseudopackage "go.shape" that gets + // created by generic code. + viewLen++ } if viewLen != len(view) { - log.Fatalf("Unexpected package creation during export data loading") + log.Panicf("golang.org/x/tools/go/packages: unexpected new packages during load of %s", lpkg.PkgPath) } lpkg.Types = tpkg lpkg.IllTyped = false - - return tpkg, nil + return nil } // impliedLoadMode returns loadMode with its dependencies. func impliedLoadMode(loadMode LoadMode) LoadMode { - if loadMode&NeedTypesInfo != 0 && loadMode&NeedImports == 0 { - // If NeedTypesInfo, go/packages needs to do typechecking itself so it can - // associate type info with the AST. To do so, we need the export data - // for dependencies, which means we need to ask for the direct dependencies. - // NeedImports is used to ask for the direct dependencies. - loadMode |= NeedImports - } - - if loadMode&NeedDeps != 0 && loadMode&NeedImports == 0 { - // With NeedDeps we need to load at least direct dependencies. - // NeedImports is used to ask for the direct dependencies. + if loadMode&(NeedDeps|NeedTypes|NeedTypesInfo) != 0 { + // All these things require knowing the import graph. loadMode |= NeedImports } @@ -1240,5 +1320,7 @@ func impliedLoadMode(loadMode LoadMode) LoadMode { } func usesExportData(cfg *Config) bool { - return cfg.Mode&NeedExportsFile != 0 || cfg.Mode&NeedTypes != 0 && cfg.Mode&NeedDeps == 0 + return cfg.Mode&NeedExportFile != 0 || cfg.Mode&NeedTypes != 0 && cfg.Mode&NeedDeps == 0 } + +var _ interface{} = io.Discard // assert build toolchain is go1.16 or later diff --git a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/imports.go b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/imports.go index 9c441dba9c..b81ce0c330 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/imports.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/imports.go @@ -12,7 +12,6 @@ import "go/types" // package Q, Q appears earlier than P in the result. // The algorithm follows import statements in the order they // appear in the source code, so the result is a total order. -// func Dependencies(pkgs ...*types.Package) []*types.Package { var result []*types.Package seen := make(map[*types.Package]bool) diff --git a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/map.go b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/map.go index c9f8f25a0d..7bd2fdb38b 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/map.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/map.go @@ -24,7 +24,6 @@ import ( // Just as with map[K]V, a nil *Map is a valid empty map. // // Not thread-safe. -// type Map struct { hasher Hasher // shared by many Maps table map[uint32][]entry // maps hash to bucket; entry.key==nil means unused @@ -57,14 +56,12 @@ type entry struct { // // If SetHasher is not called, the Map will create a private hasher at // the first call to Insert. -// func (m *Map) SetHasher(hasher Hasher) { m.hasher = hasher } // Delete removes the entry with the given key, if any. // It returns true if the entry was found. -// func (m *Map) Delete(key types.Type) bool { if m != nil && m.table != nil { hash := m.hasher.Hash(key) @@ -84,7 +81,6 @@ func (m *Map) Delete(key types.Type) bool { // At returns the map entry for the given key. // The result is nil if the entry is not present. -// func (m *Map) At(key types.Type) interface{} { if m != nil && m.table != nil { for _, e := range m.table[m.hasher.Hash(key)] { @@ -145,7 +141,6 @@ func (m *Map) Len() int { // f will not be invoked for it, but if f inserts a map entry that // Iterate has not yet reached, whether or not f will be invoked for // it is unspecified. -// func (m *Map) Iterate(f func(key types.Type, value interface{})) { if m != nil { for _, bucket := range m.table { @@ -190,14 +185,12 @@ func (m *Map) toString(values bool) string { // String returns a string representation of the map's entries. // Values are printed using fmt.Sprintf("%v", v). // Order is unspecified. -// func (m *Map) String() string { return m.toString(true) } // KeysString returns a string representation of the map's key set. // Order is unspecified. -// func (m *Map) KeysString() string { return m.toString(false) } @@ -339,7 +332,9 @@ func (h Hasher) hashFor(t types.Type) uint32 { // Method order is not significant. // Ignore m.Pkg(). m := t.Method(i) - hash += 3*hashString(m.Name()) + 5*h.Hash(m.Type()) + // Use shallow hash on method signature to + // avoid anonymous interface cycles. + hash += 3*hashString(m.Name()) + 5*h.shallowHash(m.Type()) } // Hash type restrictions. @@ -441,3 +436,76 @@ func (h Hasher) hashPtr(ptr interface{}) uint32 { h.ptrMap[ptr] = hash return hash } + +// shallowHash computes a hash of t without looking at any of its +// element Types, to avoid potential anonymous cycles in the types of +// interface methods. +// +// When an unnamed non-empty interface type appears anywhere among the +// arguments or results of an interface method, there is a potential +// for endless recursion. Consider: +// +// type X interface { m() []*interface { X } } +// +// The problem is that the Methods of the interface in m's result type +// include m itself; there is no mention of the named type X that +// might help us break the cycle. +// (See comment in go/types.identical, case *Interface, for more.) +func (h Hasher) shallowHash(t types.Type) uint32 { + // t is the type of an interface method (Signature), + // its params or results (Tuples), or their immediate + // elements (mostly Slice, Pointer, Basic, Named), + // so there's no need to optimize anything else. + switch t := t.(type) { + case *types.Signature: + var hash uint32 = 604171 + if t.Variadic() { + hash *= 971767 + } + // The Signature/Tuple recursion is always finite + // and invariably shallow. + return hash + 1062599*h.shallowHash(t.Params()) + 1282529*h.shallowHash(t.Results()) + + case *types.Tuple: + n := t.Len() + hash := 9137 + 2*uint32(n) + for i := 0; i < n; i++ { + hash += 53471161 * h.shallowHash(t.At(i).Type()) + } + return hash + + case *types.Basic: + return 45212177 * uint32(t.Kind()) + + case *types.Array: + return 1524181 + 2*uint32(t.Len()) + + case *types.Slice: + return 2690201 + + case *types.Struct: + return 3326489 + + case *types.Pointer: + return 4393139 + + case *typeparams.Union: + return 562448657 + + case *types.Interface: + return 2124679 // no recursion here + + case *types.Map: + return 9109 + + case *types.Chan: + return 9127 + + case *types.Named: + return h.hashPtr(t.Obj()) + + case *typeparams.TypeParam: + return h.hashPtr(t.Obj()) + } + panic(fmt.Sprintf("shallowHash: %T: %v", t, t)) +} diff --git a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go index 32084610f4..a5d9310830 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go @@ -25,7 +25,6 @@ type MethodSetCache struct { // If cache is nil, this function is equivalent to types.NewMethodSet(T). // Utility functions can thus expose an optional *MethodSetCache // parameter to clients that care about performance. -// func (cache *MethodSetCache) MethodSet(T types.Type) *types.MethodSet { if cache == nil { return types.NewMethodSet(T) diff --git a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/ui.go b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/ui.go index 9849c24cef..fa55b0a1e6 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/ui.go +++ b/tools/metrics/vendor/golang.org/x/tools/go/types/typeutil/ui.go @@ -22,7 +22,6 @@ import "go/types" // this function is intended only for user interfaces. // // The order of the result is as for types.MethodSet(T). -// func IntuitiveMethodSet(T types.Type, msets *MethodSetCache) []*types.Selection { isPointerToConcrete := func(T types.Type) bool { ptr, ok := T.(*types.Pointer) diff --git a/tools/metrics/vendor/golang.org/x/tools/imports/forward.go b/tools/metrics/vendor/golang.org/x/tools/imports/forward.go index 8be18a66b3..d2547c7433 100644 --- a/tools/metrics/vendor/golang.org/x/tools/imports/forward.go +++ b/tools/metrics/vendor/golang.org/x/tools/imports/forward.go @@ -40,7 +40,7 @@ var LocalPrefix string // // Note that filename's directory influences which imports can be chosen, // so it is important that filename be accurate. -// To process data ``as if'' it were in filename, pass the data as a non-nil src. +// To process data “as if” it were in filename, pass the data as a non-nil src. func Process(filename string, src []byte, opt *Options) ([]byte, error) { var err error if src == nil { diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go index 9887f7e7a0..798fe599be 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go @@ -40,12 +40,12 @@ var ErrSkipFiles = errors.New("fastwalk: skip remaining files in directory") // If fastWalk returns filepath.SkipDir, the directory is skipped. // // Unlike filepath.Walk: -// * file stat calls must be done by the user. +// - file stat calls must be done by the user. // The only provided metadata is the file type, which does not include // any permission bits. -// * multiple goroutines stat the filesystem concurrently. The provided +// - multiple goroutines stat the filesystem concurrently. The provided // walkFn must be safe for concurrent use. -// * fastWalk can follow symlinks if walkFn returns the TraverseLink +// - fastWalk can follow symlinks if walkFn returns the TraverseLink // sentinel error. It is the walkFn's responsibility to prevent // fastWalk from going into symlink cycles. func Walk(root string, walkFn func(path string, typ os.FileMode) error) error { diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_darwin.go b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_darwin.go new file mode 100644 index 0000000000..0ca55e0d56 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_darwin.go @@ -0,0 +1,119 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build darwin && cgo +// +build darwin,cgo + +package fastwalk + +/* +#include + +// fastwalk_readdir_r wraps readdir_r so that we don't have to pass a dirent** +// result pointer which triggers CGO's "Go pointer to Go pointer" check unless +// we allocat the result dirent* with malloc. +// +// fastwalk_readdir_r returns 0 on success, -1 upon reaching the end of the +// directory, or a positive error number to indicate failure. +static int fastwalk_readdir_r(DIR *fd, struct dirent *entry) { + struct dirent *result; + int ret = readdir_r(fd, entry, &result); + if (ret == 0 && result == NULL) { + ret = -1; // EOF + } + return ret; +} +*/ +import "C" + +import ( + "os" + "syscall" + "unsafe" +) + +func readDir(dirName string, fn func(dirName, entName string, typ os.FileMode) error) error { + fd, err := openDir(dirName) + if err != nil { + return &os.PathError{Op: "opendir", Path: dirName, Err: err} + } + defer C.closedir(fd) + + skipFiles := false + var dirent syscall.Dirent + for { + ret := int(C.fastwalk_readdir_r(fd, (*C.struct_dirent)(unsafe.Pointer(&dirent)))) + if ret != 0 { + if ret == -1 { + break // EOF + } + if ret == int(syscall.EINTR) { + continue + } + return &os.PathError{Op: "readdir", Path: dirName, Err: syscall.Errno(ret)} + } + if dirent.Ino == 0 { + continue + } + typ := dtToType(dirent.Type) + if skipFiles && typ.IsRegular() { + continue + } + name := (*[len(syscall.Dirent{}.Name)]byte)(unsafe.Pointer(&dirent.Name))[:] + name = name[:dirent.Namlen] + for i, c := range name { + if c == 0 { + name = name[:i] + break + } + } + // Check for useless names before allocating a string. + if string(name) == "." || string(name) == ".." { + continue + } + if err := fn(dirName, string(name), typ); err != nil { + if err != ErrSkipFiles { + return err + } + skipFiles = true + } + } + + return nil +} + +func dtToType(typ uint8) os.FileMode { + switch typ { + case syscall.DT_BLK: + return os.ModeDevice + case syscall.DT_CHR: + return os.ModeDevice | os.ModeCharDevice + case syscall.DT_DIR: + return os.ModeDir + case syscall.DT_FIFO: + return os.ModeNamedPipe + case syscall.DT_LNK: + return os.ModeSymlink + case syscall.DT_REG: + return 0 + case syscall.DT_SOCK: + return os.ModeSocket + } + return ^os.FileMode(0) +} + +// openDir wraps opendir(3) and handles any EINTR errors. The returned *DIR +// needs to be closed with closedir(3). +func openDir(path string) (*C.DIR, error) { + name, err := syscall.BytePtrFromString(path) + if err != nil { + return nil, err + } + for { + fd, err := C.opendir((*C.char)(unsafe.Pointer(name))) + if err != syscall.EINTR { + return fd, err + } + } +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_ino.go b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_ino.go index ea02b9ebfe..d3922890b0 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_ino.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_ino.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build (linux || darwin) && !appengine -// +build linux darwin +//go:build (linux || (darwin && !cgo)) && !appengine +// +build linux darwin,!cgo // +build !appengine package fastwalk @@ -11,5 +11,5 @@ package fastwalk import "syscall" func direntInode(dirent *syscall.Dirent) uint64 { - return uint64(dirent.Ino) + return dirent.Ino } diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_namlen_bsd.go b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_namlen_bsd.go index d5c9c321ed..38a4db6af3 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_namlen_bsd.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_dirent_namlen_bsd.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build darwin || freebsd || openbsd || netbsd -// +build darwin freebsd openbsd netbsd +//go:build (darwin && !cgo) || freebsd || openbsd || netbsd +// +build darwin,!cgo freebsd openbsd netbsd package fastwalk diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go index 58bd87841e..f12f1a734c 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build (linux || darwin || freebsd || openbsd || netbsd) && !appengine -// +build linux darwin freebsd openbsd netbsd +//go:build (linux || freebsd || openbsd || netbsd || (darwin && !cgo)) && !appengine +// +build linux freebsd openbsd netbsd darwin,!cgo // +build !appengine package fastwalk diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/bexport.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/bexport.go similarity index 96% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/bexport.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/bexport.go index 0a3cdb9a3b..30582ed6d3 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/bexport.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/bexport.go @@ -12,7 +12,6 @@ import ( "bytes" "encoding/binary" "fmt" - "go/ast" "go/constant" "go/token" "go/types" @@ -35,16 +34,18 @@ import ( const debugFormat = false // default: false // Current export format version. Increase with each format change. +// // Note: The latest binary (non-indexed) export format is at version 6. -// This exporter is still at level 4, but it doesn't matter since -// the binary importer can handle older versions just fine. -// 6: package height (CL 105038) -- NOT IMPLEMENTED HERE -// 5: improved position encoding efficiency (issue 20080, CL 41619) -- NOT IMPLEMEMTED HERE -// 4: type name objects support type aliases, uses aliasTag -// 3: Go1.8 encoding (same as version 2, aliasTag defined but never used) -// 2: removed unused bool in ODCL export (compiler only) -// 1: header format change (more regular), export package for _ struct fields -// 0: Go1.7 encoding +// This exporter is still at level 4, but it doesn't matter since +// the binary importer can handle older versions just fine. +// +// 6: package height (CL 105038) -- NOT IMPLEMENTED HERE +// 5: improved position encoding efficiency (issue 20080, CL 41619) -- NOT IMPLEMENTED HERE +// 4: type name objects support type aliases, uses aliasTag +// 3: Go1.8 encoding (same as version 2, aliasTag defined but never used) +// 2: removed unused bool in ODCL export (compiler only) +// 1: header format change (more regular), export package for _ struct fields +// 0: Go1.7 encoding const exportVersion = 4 // trackAllTypes enables cycle tracking for all types, not just named @@ -143,7 +144,7 @@ func BExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error) objcount := 0 scope := pkg.Scope() for _, name := range scope.Names() { - if !ast.IsExported(name) { + if !token.IsExported(name) { continue } if trace { @@ -480,7 +481,7 @@ func (p *exporter) method(m *types.Func) { p.pos(m) p.string(m.Name()) - if m.Name() != "_" && !ast.IsExported(m.Name()) { + if m.Name() != "_" && !token.IsExported(m.Name()) { p.pkg(m.Pkg(), false) } @@ -499,7 +500,7 @@ func (p *exporter) fieldName(f *types.Var) { // 3) field name doesn't match base type name (alias name) bname := basetypeName(f.Type()) if name == bname { - if ast.IsExported(name) { + if token.IsExported(name) { name = "" // 1) we don't need to know the field name or package } else { name = "?" // 2) use unexported name "?" to force package export @@ -512,7 +513,7 @@ func (p *exporter) fieldName(f *types.Var) { } p.string(name) - if name != "" && !ast.IsExported(name) { + if name != "" && !token.IsExported(name) { p.pkg(f.Pkg(), false) } } diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/bimport.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/bimport.go similarity index 100% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/bimport.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/bimport.go diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/exportdata.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/exportdata.go similarity index 100% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/exportdata.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/exportdata.go diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/gcimporter.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/gcimporter.go new file mode 100644 index 0000000000..0372fb3a64 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/gcimporter.go @@ -0,0 +1,265 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file is a reduced copy of $GOROOT/src/go/internal/gcimporter/gcimporter.go. + +// Package gcimporter provides various functions for reading +// gc-generated object files that can be used to implement the +// Importer interface defined by the Go 1.5 standard library package. +package gcimporter // import "golang.org/x/tools/internal/gcimporter" + +import ( + "bufio" + "bytes" + "fmt" + "go/build" + "go/token" + "go/types" + "io" + "io/ioutil" + "os" + "os/exec" + "path/filepath" + "strings" + "sync" +) + +const ( + // Enable debug during development: it adds some additional checks, and + // prevents errors from being recovered. + debug = false + + // If trace is set, debugging output is printed to std out. + trace = false +) + +var exportMap sync.Map // package dir → func() (string, bool) + +// lookupGorootExport returns the location of the export data +// (normally found in the build cache, but located in GOROOT/pkg +// in prior Go releases) for the package located in pkgDir. +// +// (We use the package's directory instead of its import path +// mainly to simplify handling of the packages in src/vendor +// and cmd/vendor.) +func lookupGorootExport(pkgDir string) (string, bool) { + f, ok := exportMap.Load(pkgDir) + if !ok { + var ( + listOnce sync.Once + exportPath string + ) + f, _ = exportMap.LoadOrStore(pkgDir, func() (string, bool) { + listOnce.Do(func() { + cmd := exec.Command("go", "list", "-export", "-f", "{{.Export}}", pkgDir) + cmd.Dir = build.Default.GOROOT + var output []byte + output, err := cmd.Output() + if err != nil { + return + } + + exports := strings.Split(string(bytes.TrimSpace(output)), "\n") + if len(exports) != 1 { + return + } + + exportPath = exports[0] + }) + + return exportPath, exportPath != "" + }) + } + + return f.(func() (string, bool))() +} + +var pkgExts = [...]string{".a", ".o"} + +// FindPkg returns the filename and unique package id for an import +// path based on package information provided by build.Import (using +// the build.Default build.Context). A relative srcDir is interpreted +// relative to the current working directory. +// If no file was found, an empty filename is returned. +func FindPkg(path, srcDir string) (filename, id string) { + if path == "" { + return + } + + var noext string + switch { + default: + // "x" -> "$GOPATH/pkg/$GOOS_$GOARCH/x.ext", "x" + // Don't require the source files to be present. + if abs, err := filepath.Abs(srcDir); err == nil { // see issue 14282 + srcDir = abs + } + bp, _ := build.Import(path, srcDir, build.FindOnly|build.AllowBinary) + if bp.PkgObj == "" { + var ok bool + if bp.Goroot && bp.Dir != "" { + filename, ok = lookupGorootExport(bp.Dir) + } + if !ok { + id = path // make sure we have an id to print in error message + return + } + } else { + noext = strings.TrimSuffix(bp.PkgObj, ".a") + id = bp.ImportPath + } + + case build.IsLocalImport(path): + // "./x" -> "/this/directory/x.ext", "/this/directory/x" + noext = filepath.Join(srcDir, path) + id = noext + + case filepath.IsAbs(path): + // for completeness only - go/build.Import + // does not support absolute imports + // "/x" -> "/x.ext", "/x" + noext = path + id = path + } + + if false { // for debugging + if path != id { + fmt.Printf("%s -> %s\n", path, id) + } + } + + if filename != "" { + if f, err := os.Stat(filename); err == nil && !f.IsDir() { + return + } + } + + // try extensions + for _, ext := range pkgExts { + filename = noext + ext + if f, err := os.Stat(filename); err == nil && !f.IsDir() { + return + } + } + + filename = "" // not found + return +} + +// Import imports a gc-generated package given its import path and srcDir, adds +// the corresponding package object to the packages map, and returns the object. +// The packages map must contain all packages already imported. +func Import(packages map[string]*types.Package, path, srcDir string, lookup func(path string) (io.ReadCloser, error)) (pkg *types.Package, err error) { + var rc io.ReadCloser + var filename, id string + if lookup != nil { + // With custom lookup specified, assume that caller has + // converted path to a canonical import path for use in the map. + if path == "unsafe" { + return types.Unsafe, nil + } + id = path + + // No need to re-import if the package was imported completely before. + if pkg = packages[id]; pkg != nil && pkg.Complete() { + return + } + f, err := lookup(path) + if err != nil { + return nil, err + } + rc = f + } else { + filename, id = FindPkg(path, srcDir) + if filename == "" { + if path == "unsafe" { + return types.Unsafe, nil + } + return nil, fmt.Errorf("can't find import: %q", id) + } + + // no need to re-import if the package was imported completely before + if pkg = packages[id]; pkg != nil && pkg.Complete() { + return + } + + // open file + f, err := os.Open(filename) + if err != nil { + return nil, err + } + defer func() { + if err != nil { + // add file name to error + err = fmt.Errorf("%s: %v", filename, err) + } + }() + rc = f + } + defer rc.Close() + + var hdr string + var size int64 + buf := bufio.NewReader(rc) + if hdr, size, err = FindExportData(buf); err != nil { + return + } + + switch hdr { + case "$$B\n": + var data []byte + data, err = ioutil.ReadAll(buf) + if err != nil { + break + } + + // TODO(gri): allow clients of go/importer to provide a FileSet. + // Or, define a new standard go/types/gcexportdata package. + fset := token.NewFileSet() + + // The indexed export format starts with an 'i'; the older + // binary export format starts with a 'c', 'd', or 'v' + // (from "version"). Select appropriate importer. + if len(data) > 0 { + switch data[0] { + case 'i': + _, pkg, err := IImportData(fset, packages, data[1:], id) + return pkg, err + + case 'v', 'c', 'd': + _, pkg, err := BImportData(fset, packages, data, id) + return pkg, err + + case 'u': + _, pkg, err := UImportData(fset, packages, data[1:size], id) + return pkg, err + + default: + l := len(data) + if l > 10 { + l = 10 + } + return nil, fmt.Errorf("unexpected export data with prefix %q for path %s", string(data[:l]), id) + } + } + + default: + err = fmt.Errorf("unknown export data header: %q", hdr) + } + + return +} + +func deref(typ types.Type) types.Type { + if p, _ := typ.(*types.Pointer); p != nil { + return p.Elem() + } + return typ +} + +type byPath []*types.Package + +func (a byPath) Len() int { return len(a) } +func (a byPath) Swap(i, j int) { a[i], a[j] = a[j], a[i] } +func (a byPath) Less(i, j int) bool { return a[i].Path() < a[j].Path() } diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/iexport.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/iexport.go similarity index 78% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/iexport.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/iexport.go index 209553409c..ba53cdcdd1 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/iexport.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/iexport.go @@ -12,7 +12,6 @@ import ( "bytes" "encoding/binary" "fmt" - "go/ast" "go/constant" "go/token" "go/types" @@ -23,9 +22,45 @@ import ( "strconv" "strings" + "golang.org/x/tools/internal/tokeninternal" "golang.org/x/tools/internal/typeparams" ) +// IExportShallow encodes "shallow" export data for the specified package. +// +// No promises are made about the encoding other than that it can be +// decoded by the same version of IIExportShallow. If you plan to save +// export data in the file system, be sure to include a cryptographic +// digest of the executable in the key to avoid version skew. +func IExportShallow(fset *token.FileSet, pkg *types.Package) ([]byte, error) { + // In principle this operation can only fail if out.Write fails, + // but that's impossible for bytes.Buffer---and as a matter of + // fact iexportCommon doesn't even check for I/O errors. + // TODO(adonovan): handle I/O errors properly. + // TODO(adonovan): use byte slices throughout, avoiding copying. + const bundle, shallow = false, true + var out bytes.Buffer + err := iexportCommon(&out, fset, bundle, shallow, iexportVersion, []*types.Package{pkg}) + return out.Bytes(), err +} + +// IImportShallow decodes "shallow" types.Package data encoded by IExportShallow +// in the same executable. This function cannot import data from +// cmd/compile or gcexportdata.Write. +func IImportShallow(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string, insert InsertType) (*types.Package, error) { + const bundle = false + pkgs, err := iimportCommon(fset, imports, data, bundle, path, insert) + if err != nil { + return nil, err + } + return pkgs[0], nil +} + +// InsertType is the type of a function that creates a types.TypeName +// object for a named type and inserts it into the scope of the +// specified Package. +type InsertType = func(pkg *types.Package, name string) + // Current bundled export format version. Increase with each format change. // 0: initial implementation const bundleVersion = 0 @@ -36,15 +71,17 @@ const bundleVersion = 0 // The package path of the top-level package will not be recorded, // so that calls to IImportData can override with a provided package path. func IExportData(out io.Writer, fset *token.FileSet, pkg *types.Package) error { - return iexportCommon(out, fset, false, iexportVersion, []*types.Package{pkg}) + const bundle, shallow = false, false + return iexportCommon(out, fset, bundle, shallow, iexportVersion, []*types.Package{pkg}) } // IExportBundle writes an indexed export bundle for pkgs to out. func IExportBundle(out io.Writer, fset *token.FileSet, pkgs []*types.Package) error { - return iexportCommon(out, fset, true, iexportVersion, pkgs) + const bundle, shallow = true, false + return iexportCommon(out, fset, bundle, shallow, iexportVersion, pkgs) } -func iexportCommon(out io.Writer, fset *token.FileSet, bundle bool, version int, pkgs []*types.Package) (err error) { +func iexportCommon(out io.Writer, fset *token.FileSet, bundle, shallow bool, version int, pkgs []*types.Package) (err error) { if !debug { defer func() { if e := recover(); e != nil { @@ -61,6 +98,7 @@ func iexportCommon(out io.Writer, fset *token.FileSet, bundle bool, version int, p := iexporter{ fset: fset, version: version, + shallow: shallow, allPkgs: map[*types.Package]bool{}, stringIndex: map[string]uint64{}, declIndex: map[types.Object]uint64{}, @@ -82,7 +120,7 @@ func iexportCommon(out io.Writer, fset *token.FileSet, bundle bool, version int, for _, pkg := range pkgs { scope := pkg.Scope() for _, name := range scope.Names() { - if ast.IsExported(name) { + if token.IsExported(name) { p.pushDecl(scope.Lookup(name)) } } @@ -101,6 +139,17 @@ func iexportCommon(out io.Writer, fset *token.FileSet, bundle bool, version int, p.doDecl(p.declTodo.popHead()) } + // Produce index of offset of each file record in files. + var files intWriter + var fileOffset []uint64 // fileOffset[i] is offset in files of file encoded as i + if p.shallow { + fileOffset = make([]uint64, len(p.fileInfos)) + for i, info := range p.fileInfos { + fileOffset[i] = uint64(files.Len()) + p.encodeFile(&files, info.file, info.needed) + } + } + // Append indices to data0 section. dataLen := uint64(p.data0.Len()) w := p.newWriter() @@ -126,16 +175,75 @@ func iexportCommon(out io.Writer, fset *token.FileSet, bundle bool, version int, } hdr.uint64(uint64(p.version)) hdr.uint64(uint64(p.strings.Len())) + if p.shallow { + hdr.uint64(uint64(files.Len())) + hdr.uint64(uint64(len(fileOffset))) + for _, offset := range fileOffset { + hdr.uint64(offset) + } + } hdr.uint64(dataLen) // Flush output. io.Copy(out, &hdr) io.Copy(out, &p.strings) + if p.shallow { + io.Copy(out, &files) + } io.Copy(out, &p.data0) return nil } +// encodeFile writes to w a representation of the file sufficient to +// faithfully restore position information about all needed offsets. +// Mutates the needed array. +func (p *iexporter) encodeFile(w *intWriter, file *token.File, needed []uint64) { + _ = needed[0] // precondition: needed is non-empty + + w.uint64(p.stringOff(file.Name())) + + size := uint64(file.Size()) + w.uint64(size) + + // Sort the set of needed offsets. Duplicates are harmless. + sort.Slice(needed, func(i, j int) bool { return needed[i] < needed[j] }) + + lines := tokeninternal.GetLines(file) // byte offset of each line start + w.uint64(uint64(len(lines))) + + // Rather than record the entire array of line start offsets, + // we save only a sparse list of (index, offset) pairs for + // the start of each line that contains a needed position. + var sparse [][2]int // (index, offset) pairs +outer: + for i, lineStart := range lines { + lineEnd := size + if i < len(lines)-1 { + lineEnd = uint64(lines[i+1]) + } + // Does this line contains a needed offset? + if needed[0] < lineEnd { + sparse = append(sparse, [2]int{i, lineStart}) + for needed[0] < lineEnd { + needed = needed[1:] + if len(needed) == 0 { + break outer + } + } + } + } + + // Delta-encode the columns. + w.uint64(uint64(len(sparse))) + var prev [2]int + for _, pair := range sparse { + w.uint64(uint64(pair[0] - prev[0])) + w.uint64(uint64(pair[1] - prev[1])) + prev = pair + } +} + // writeIndex writes out an object index. mainIndex indicates whether // we're writing out the main index, which is also read by // non-compiler tools and includes a complete package description @@ -205,7 +313,8 @@ type iexporter struct { out *bytes.Buffer version int - localpkg *types.Package + shallow bool // don't put types from other packages in the index + localpkg *types.Package // (nil in bundle mode) // allPkgs tracks all packages that have been referenced by // the export data, so we can ensure to include them in the @@ -217,6 +326,12 @@ type iexporter struct { strings intWriter stringIndex map[string]uint64 + // In shallow mode, object positions are encoded as (file, offset). + // Each file is recorded as a line-number table. + // Only the lines of needed positions are saved faithfully. + fileInfo map[*token.File]uint64 // value is index in fileInfos + fileInfos []*filePositions + data0 intWriter declIndex map[types.Object]uint64 tparamNames map[types.Object]string // typeparam->exported name @@ -225,6 +340,11 @@ type iexporter struct { indent int // for tracing support } +type filePositions struct { + file *token.File + needed []uint64 // unordered list of needed file offsets +} + func (p *iexporter) trace(format string, args ...interface{}) { if !trace { // Call sites should also be guarded, but having this check here allows @@ -248,10 +368,37 @@ func (p *iexporter) stringOff(s string) uint64 { return off } +// fileIndexAndOffset returns the index of the token.File and the byte offset of pos within it. +func (p *iexporter) fileIndexAndOffset(file *token.File, pos token.Pos) (uint64, uint64) { + index, ok := p.fileInfo[file] + if !ok { + index = uint64(len(p.fileInfo)) + p.fileInfos = append(p.fileInfos, &filePositions{file: file}) + if p.fileInfo == nil { + p.fileInfo = make(map[*token.File]uint64) + } + p.fileInfo[file] = index + } + // Record each needed offset. + info := p.fileInfos[index] + offset := uint64(file.Offset(pos)) + info.needed = append(info.needed, offset) + + return index, offset +} + // pushDecl adds n to the declaration work queue, if not already present. func (p *iexporter) pushDecl(obj types.Object) { // Package unsafe is known to the compiler and predeclared. - assert(obj.Pkg() != types.Unsafe) + // Caller should not ask us to do export it. + if obj.Pkg() == types.Unsafe { + panic("cannot export package unsafe") + } + + // Shallow export data: don't index decls from other packages. + if p.shallow && obj.Pkg() != p.localpkg { + return + } if _, ok := p.declIndex[obj]; ok { return @@ -300,7 +447,13 @@ func (p *iexporter) doDecl(obj types.Object) { case *types.Func: sig, _ := obj.Type().(*types.Signature) if sig.Recv() != nil { - panic(internalErrorf("unexpected method: %v", sig)) + // We shouldn't see methods in the package scope, + // but the type checker may repair "func () F() {}" + // to "func (Invalid) F()" and then treat it like "func F()", + // so allow that. See golang/go#57729. + if sig.Recv().Type() != types.Typ[types.Invalid] { + panic(internalErrorf("unexpected method: %v", sig)) + } } // Function. @@ -412,13 +565,30 @@ func (w *exportWriter) tag(tag byte) { } func (w *exportWriter) pos(pos token.Pos) { - if w.p.version >= iexportVersionPosCol { + if w.p.shallow { + w.posV2(pos) + } else if w.p.version >= iexportVersionPosCol { w.posV1(pos) } else { w.posV0(pos) } } +// posV2 encoding (used only in shallow mode) records positions as +// (file, offset), where file is the index in the token.File table +// (which records the file name and newline offsets) and offset is a +// byte offset. It effectively ignores //line directives. +func (w *exportWriter) posV2(pos token.Pos) { + if pos == token.NoPos { + w.uint64(0) + return + } + file := w.p.fset.File(pos) // fset must be non-nil + index, offset := w.p.fileIndexAndOffset(file, pos) + w.uint64(1 + index) + w.uint64(offset) +} + func (w *exportWriter) posV1(pos token.Pos) { if w.p.fset == nil { w.int64(0) @@ -494,7 +664,7 @@ func (w *exportWriter) pkg(pkg *types.Package) { w.string(w.exportPath(pkg)) } -func (w *exportWriter) qualifiedIdent(obj types.Object) { +func (w *exportWriter) qualifiedType(obj *types.TypeName) { name := w.p.exportName(obj) // Ensure any referenced declarations are written out too. @@ -553,11 +723,11 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) { return } w.startType(definedType) - w.qualifiedIdent(t.Obj()) + w.qualifiedType(t.Obj()) case *typeparams.TypeParam: w.startType(typeParamType) - w.qualifiedIdent(t.Obj()) + w.qualifiedType(t.Obj()) case *types.Pointer: w.startType(pointerType) @@ -599,14 +769,17 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) { case *types.Struct: w.startType(structType) - w.setPkg(pkg, true) - n := t.NumFields() + if n > 0 { + w.setPkg(t.Field(0).Pkg(), true) // qualifying package for field objects + } else { + w.setPkg(pkg, true) + } w.uint64(uint64(n)) for i := 0; i < n; i++ { f := t.Field(i) w.pos(f.Pos()) - w.string(f.Name()) + w.string(f.Name()) // unexported fields implicitly qualified by prior setPkg w.typ(f.Type(), pkg) w.bool(f.Anonymous()) w.string(t.Tag(i)) // note (or tag) diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/iimport.go similarity index 83% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/iimport.go index 84cfb807d7..448f903e86 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/iimport.go @@ -17,6 +17,7 @@ import ( "go/token" "go/types" "io" + "math/big" "sort" "strings" @@ -50,10 +51,12 @@ const ( iexportVersionPosCol = 1 iexportVersionGo1_18 = 2 iexportVersionGenerics = 2 + + iexportVersionCurrent = 2 ) type ident struct { - pkg string + pkg *types.Package name string } @@ -82,7 +85,7 @@ const ( // If the export data version is not recognized or the format is otherwise // compromised, an error is returned. func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (int, *types.Package, error) { - pkgs, err := iimportCommon(fset, imports, data, false, path) + pkgs, err := iimportCommon(fset, imports, data, false, path, nil) if err != nil { return 0, nil, err } @@ -91,16 +94,18 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data [] // IImportBundle imports a set of packages from the serialized package bundle. func IImportBundle(fset *token.FileSet, imports map[string]*types.Package, data []byte) ([]*types.Package, error) { - return iimportCommon(fset, imports, data, true, "") + return iimportCommon(fset, imports, data, true, "", nil) } -func iimportCommon(fset *token.FileSet, imports map[string]*types.Package, data []byte, bundle bool, path string) (pkgs []*types.Package, err error) { - const currentVersion = 1 +func iimportCommon(fset *token.FileSet, imports map[string]*types.Package, data []byte, bundle bool, path string, insert InsertType) (pkgs []*types.Package, err error) { + const currentVersion = iexportVersionCurrent version := int64(-1) if !debug { defer func() { if e := recover(); e != nil { - if version > currentVersion { + if bundle { + err = fmt.Errorf("%v", e) + } else if version > currentVersion { err = fmt.Errorf("cannot import %q (%v), export data is newer version - update tool", path, e) } else { err = fmt.Errorf("cannot import %q (%v), possibly version skew - reinstall package", path, e) @@ -132,19 +137,34 @@ func iimportCommon(fset *token.FileSet, imports map[string]*types.Package, data } sLen := int64(r.uint64()) + var fLen int64 + var fileOffset []uint64 + if insert != nil { + // Shallow mode uses a different position encoding. + fLen = int64(r.uint64()) + fileOffset = make([]uint64, r.uint64()) + for i := range fileOffset { + fileOffset[i] = r.uint64() + } + } dLen := int64(r.uint64()) whence, _ := r.Seek(0, io.SeekCurrent) stringData := data[whence : whence+sLen] - declData := data[whence+sLen : whence+sLen+dLen] - r.Seek(sLen+dLen, io.SeekCurrent) + fileData := data[whence+sLen : whence+sLen+fLen] + declData := data[whence+sLen+fLen : whence+sLen+fLen+dLen] + r.Seek(sLen+fLen+dLen, io.SeekCurrent) p := iimporter{ version: int(version), ipath: path, + insert: insert, stringData: stringData, stringCache: make(map[uint64]string), + fileOffset: fileOffset, + fileData: fileData, + fileCache: make([]*token.File, len(fileOffset)), pkgCache: make(map[uint64]*types.Package), declData: declData, @@ -182,11 +202,18 @@ func iimportCommon(fset *token.FileSet, imports map[string]*types.Package, data } else if pkg.Name() != pkgName { errorf("conflicting names %s and %s for package %q", pkg.Name(), pkgName, path) } + if i == 0 && !bundle { + p.localpkg = pkg + } p.pkgCache[pkgPathOff] = pkg + // Read index for package. nameIndex := make(map[string]uint64) - for nSyms := r.uint64(); nSyms > 0; nSyms-- { + nSyms := r.uint64() + // In shallow mode we don't expect an index for other packages. + assert(nSyms == 0 || p.localpkg == pkg || p.insert == nil) + for ; nSyms > 0; nSyms-- { name := p.stringAt(r.uint64()) nameIndex[name] = r.uint64() } @@ -262,8 +289,14 @@ type iimporter struct { version int ipath string + localpkg *types.Package + insert func(pkg *types.Package, name string) // "shallow" mode only + stringData []byte stringCache map[uint64]string + fileOffset []uint64 // fileOffset[i] is offset in fileData for info about file encoded as i + fileData []byte + fileCache []*token.File // memoized decoding of file encoded as i pkgCache map[uint64]*types.Package declData []byte @@ -305,6 +338,13 @@ func (p *iimporter) doDecl(pkg *types.Package, name string) { off, ok := p.pkgIndex[pkg][name] if !ok { + // In "shallow" mode, call back to the application to + // find the object and insert it into the package scope. + if p.insert != nil { + assert(pkg != p.localpkg) + p.insert(pkg, name) // "can't fail" + return + } errorf("%v.%v not in index", pkg, name) } @@ -329,6 +369,55 @@ func (p *iimporter) stringAt(off uint64) string { return s } +func (p *iimporter) fileAt(index uint64) *token.File { + file := p.fileCache[index] + if file == nil { + off := p.fileOffset[index] + file = p.decodeFile(intReader{bytes.NewReader(p.fileData[off:]), p.ipath}) + p.fileCache[index] = file + } + return file +} + +func (p *iimporter) decodeFile(rd intReader) *token.File { + filename := p.stringAt(rd.uint64()) + size := int(rd.uint64()) + file := p.fake.fset.AddFile(filename, -1, size) + + // SetLines requires a nondecreasing sequence. + // Because it is common for clients to derive the interval + // [start, start+len(name)] from a start position, and we + // want to ensure that the end offset is on the same line, + // we fill in the gaps of the sparse encoding with values + // that strictly increase by the largest possible amount. + // This allows us to avoid having to record the actual end + // offset of each needed line. + + lines := make([]int, int(rd.uint64())) + var index, offset int + for i, n := 0, int(rd.uint64()); i < n; i++ { + index += int(rd.uint64()) + offset += int(rd.uint64()) + lines[index] = offset + + // Ensure monotonicity between points. + for j := index - 1; j > 0 && lines[j] == 0; j-- { + lines[j] = lines[j+1] - 1 + } + } + + // Ensure monotonicity after last point. + for j := len(lines) - 1; j > 0 && lines[j] == 0; j-- { + size-- + lines[j] = size + } + + if !file.SetLines(lines) { + errorf("SetLines failed: %d", lines) // can't happen + } + return file +} + func (p *iimporter) pkgAt(off uint64) *types.Package { if pkg, ok := p.pkgCache[off]; ok { return pkg @@ -461,7 +550,7 @@ func (r *importReader) obj(name string) { // To handle recursive references to the typeparam within its // bound, save the partial type in tparamIndex before reading the bounds. - id := ident{r.currPkg.Name(), name} + id := ident{r.currPkg, name} r.p.tparamIndex[id] = t var implicit bool if r.p.version >= iexportVersionGo1_18 { @@ -510,7 +599,9 @@ func (r *importReader) value() (typ types.Type, val constant.Value) { val = constant.MakeString(r.string()) case types.IsInteger: - val = r.mpint(b) + var x big.Int + r.mpint(&x, b) + val = constant.Make(&x) case types.IsFloat: val = r.mpfloat(b) @@ -559,8 +650,8 @@ func intSize(b *types.Basic) (signed bool, maxBytes uint) { return } -func (r *importReader) mpint(b *types.Basic) constant.Value { - signed, maxBytes := intSize(b) +func (r *importReader) mpint(x *big.Int, typ *types.Basic) { + signed, maxBytes := intSize(typ) maxSmall := 256 - maxBytes if signed { @@ -579,7 +670,8 @@ func (r *importReader) mpint(b *types.Basic) constant.Value { v = ^v } } - return constant.MakeInt64(v) + x.SetInt64(v) + return } v := -n @@ -589,47 +681,23 @@ func (r *importReader) mpint(b *types.Basic) constant.Value { if v < 1 || uint(v) > maxBytes { errorf("weird decoding: %v, %v => %v", n, signed, v) } - - buf := make([]byte, v) - io.ReadFull(&r.declReader, buf) - - // convert to little endian - // TODO(gri) go/constant should have a more direct conversion function - // (e.g., once it supports a big.Float based implementation) - for i, j := 0, len(buf)-1; i < j; i, j = i+1, j-1 { - buf[i], buf[j] = buf[j], buf[i] - } - - x := constant.MakeFromBytes(buf) + b := make([]byte, v) + io.ReadFull(&r.declReader, b) + x.SetBytes(b) if signed && n&1 != 0 { - x = constant.UnaryOp(token.SUB, x, 0) + x.Neg(x) } - return x } -func (r *importReader) mpfloat(b *types.Basic) constant.Value { - x := r.mpint(b) - if constant.Sign(x) == 0 { - return x - } - - exp := r.int64() - switch { - case exp > 0: - x = constant.Shift(x, token.SHL, uint(exp)) - // Ensure that the imported Kind is Float, else this constant may run into - // bitsize limits on overlarge integers. Eventually we can instead adopt - // the approach of CL 288632, but that CL relies on go/constant APIs that - // were introduced in go1.13. - // - // TODO(rFindley): sync the logic here with tip Go once we no longer - // support go1.12. - x = constant.ToFloat(x) - case exp < 0: - d := constant.Shift(constant.MakeInt64(1), token.SHL, uint(-exp)) - x = constant.BinaryOp(x, token.QUO, d) +func (r *importReader) mpfloat(typ *types.Basic) constant.Value { + var mant big.Int + r.mpint(&mant, typ) + var f big.Float + f.SetInt(&mant) + if f.Sign() != 0 { + f.SetMantExp(&f, int(r.int64())) } - return x + return constant.Make(&f) } func (r *importReader) ident() string { @@ -643,6 +711,9 @@ func (r *importReader) qualifiedIdent() (*types.Package, string) { } func (r *importReader) pos() token.Pos { + if r.p.insert != nil { // shallow mode + return r.posv2() + } if r.p.version >= iexportVersionPosCol { r.posv1() } else { @@ -679,6 +750,15 @@ func (r *importReader) posv1() { } } +func (r *importReader) posv2() token.Pos { + file := r.uint64() + if file == 0 { + return token.NoPos + } + tf := r.p.fileAt(file - 1) + return tf.Pos(int(r.uint64())) +} + func (r *importReader) typ() types.Type { return r.p.typAt(r.uint64(), nil) } @@ -777,7 +857,7 @@ func (r *importReader) doType(base *types.Named) (res types.Type) { errorf("unexpected type param type") } pkg, name := r.qualifiedIdent() - id := ident{pkg.Name(), name} + id := ident{pkg, name} if t, ok := r.p.tparamIndex[id]; ok { // We're already in the process of importing this typeparam. return t diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface10.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/newInterface10.go similarity index 100% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface10.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/newInterface10.go diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface11.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/newInterface11.go similarity index 100% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface11.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/newInterface11.go diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/support_go117.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/support_go117.go similarity index 100% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/support_go117.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/support_go117.go diff --git a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/support_go118.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/support_go118.go similarity index 62% rename from tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/support_go118.go rename to tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/support_go118.go index a993843230..edbe6ea704 100644 --- a/tools/metrics/vendor/golang.org/x/tools/go/internal/gcimporter/support_go118.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/support_go118.go @@ -21,3 +21,17 @@ func additionalPredeclared() []types.Type { types.Universe.Lookup("any").Type(), } } + +// See cmd/compile/internal/types.SplitVargenSuffix. +func splitVargenSuffix(name string) (base, suffix string) { + i := len(name) + for i > 0 && name[i-1] >= '0' && name[i-1] <= '9' { + i-- + } + const dot = "·" + if i >= len(dot) && name[i-len(dot):i] == dot { + i -= len(dot) + return name[:i], name[i:] + } + return name, "" +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/unified_no.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/unified_no.go new file mode 100644 index 0000000000..286bf44548 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/unified_no.go @@ -0,0 +1,10 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build !(go1.18 && goexperiment.unified) +// +build !go1.18 !goexperiment.unified + +package gcimporter + +const unifiedIR = false diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/unified_yes.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/unified_yes.go new file mode 100644 index 0000000000..b5d69ffbe6 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/unified_yes.go @@ -0,0 +1,10 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build go1.18 && goexperiment.unified +// +build go1.18,goexperiment.unified + +package gcimporter + +const unifiedIR = true diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/ureader_no.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/ureader_no.go new file mode 100644 index 0000000000..8eb20729c2 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/ureader_no.go @@ -0,0 +1,19 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build !go1.18 +// +build !go1.18 + +package gcimporter + +import ( + "fmt" + "go/token" + "go/types" +) + +func UImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) { + err = fmt.Errorf("go/tools compiled with a Go version earlier than 1.18 cannot read unified IR export data") + return +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/ureader_yes.go b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/ureader_yes.go new file mode 100644 index 0000000000..b285a11ce2 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gcimporter/ureader_yes.go @@ -0,0 +1,738 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Derived from go/internal/gcimporter/ureader.go + +//go:build go1.18 +// +build go1.18 + +package gcimporter + +import ( + "go/token" + "go/types" + "strings" + + "golang.org/x/tools/internal/pkgbits" +) + +// A pkgReader holds the shared state for reading a unified IR package +// description. +type pkgReader struct { + pkgbits.PkgDecoder + + fake fakeFileSet + + ctxt *types.Context + imports map[string]*types.Package // previously imported packages, indexed by path + + // lazily initialized arrays corresponding to the unified IR + // PosBase, Pkg, and Type sections, respectively. + posBases []string // position bases (i.e., file names) + pkgs []*types.Package + typs []types.Type + + // laterFns holds functions that need to be invoked at the end of + // import reading. + laterFns []func() + // laterFors is used in case of 'type A B' to ensure that B is processed before A. + laterFors map[types.Type]int + + // ifaces holds a list of constructed Interfaces, which need to have + // Complete called after importing is done. + ifaces []*types.Interface +} + +// later adds a function to be invoked at the end of import reading. +func (pr *pkgReader) later(fn func()) { + pr.laterFns = append(pr.laterFns, fn) +} + +// See cmd/compile/internal/noder.derivedInfo. +type derivedInfo struct { + idx pkgbits.Index + needed bool +} + +// See cmd/compile/internal/noder.typeInfo. +type typeInfo struct { + idx pkgbits.Index + derived bool +} + +func UImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) { + s := string(data) + s = s[:strings.LastIndex(s, "\n$$\n")] + input := pkgbits.NewPkgDecoder(path, s) + pkg = readUnifiedPackage(fset, nil, imports, input) + return +} + +// laterFor adds a function to be invoked at the end of import reading, and records the type that function is finishing. +func (pr *pkgReader) laterFor(t types.Type, fn func()) { + if pr.laterFors == nil { + pr.laterFors = make(map[types.Type]int) + } + pr.laterFors[t] = len(pr.laterFns) + pr.laterFns = append(pr.laterFns, fn) +} + +// readUnifiedPackage reads a package description from the given +// unified IR export data decoder. +func readUnifiedPackage(fset *token.FileSet, ctxt *types.Context, imports map[string]*types.Package, input pkgbits.PkgDecoder) *types.Package { + pr := pkgReader{ + PkgDecoder: input, + + fake: fakeFileSet{ + fset: fset, + files: make(map[string]*fileInfo), + }, + + ctxt: ctxt, + imports: imports, + + posBases: make([]string, input.NumElems(pkgbits.RelocPosBase)), + pkgs: make([]*types.Package, input.NumElems(pkgbits.RelocPkg)), + typs: make([]types.Type, input.NumElems(pkgbits.RelocType)), + } + defer pr.fake.setLines() + + r := pr.newReader(pkgbits.RelocMeta, pkgbits.PublicRootIdx, pkgbits.SyncPublic) + pkg := r.pkg() + r.Bool() // has init + + for i, n := 0, r.Len(); i < n; i++ { + // As if r.obj(), but avoiding the Scope.Lookup call, + // to avoid eager loading of imports. + r.Sync(pkgbits.SyncObject) + assert(!r.Bool()) + r.p.objIdx(r.Reloc(pkgbits.RelocObj)) + assert(r.Len() == 0) + } + + r.Sync(pkgbits.SyncEOF) + + for _, fn := range pr.laterFns { + fn() + } + + for _, iface := range pr.ifaces { + iface.Complete() + } + + pkg.MarkComplete() + return pkg +} + +// A reader holds the state for reading a single unified IR element +// within a package. +type reader struct { + pkgbits.Decoder + + p *pkgReader + + dict *readerDict +} + +// A readerDict holds the state for type parameters that parameterize +// the current unified IR element. +type readerDict struct { + // bounds is a slice of typeInfos corresponding to the underlying + // bounds of the element's type parameters. + bounds []typeInfo + + // tparams is a slice of the constructed TypeParams for the element. + tparams []*types.TypeParam + + // devived is a slice of types derived from tparams, which may be + // instantiated while reading the current element. + derived []derivedInfo + derivedTypes []types.Type // lazily instantiated from derived +} + +func (pr *pkgReader) newReader(k pkgbits.RelocKind, idx pkgbits.Index, marker pkgbits.SyncMarker) *reader { + return &reader{ + Decoder: pr.NewDecoder(k, idx, marker), + p: pr, + } +} + +func (pr *pkgReader) tempReader(k pkgbits.RelocKind, idx pkgbits.Index, marker pkgbits.SyncMarker) *reader { + return &reader{ + Decoder: pr.TempDecoder(k, idx, marker), + p: pr, + } +} + +func (pr *pkgReader) retireReader(r *reader) { + pr.RetireDecoder(&r.Decoder) +} + +// @@@ Positions + +func (r *reader) pos() token.Pos { + r.Sync(pkgbits.SyncPos) + if !r.Bool() { + return token.NoPos + } + + // TODO(mdempsky): Delta encoding. + posBase := r.posBase() + line := r.Uint() + col := r.Uint() + return r.p.fake.pos(posBase, int(line), int(col)) +} + +func (r *reader) posBase() string { + return r.p.posBaseIdx(r.Reloc(pkgbits.RelocPosBase)) +} + +func (pr *pkgReader) posBaseIdx(idx pkgbits.Index) string { + if b := pr.posBases[idx]; b != "" { + return b + } + + var filename string + { + r := pr.tempReader(pkgbits.RelocPosBase, idx, pkgbits.SyncPosBase) + + // Within types2, position bases have a lot more details (e.g., + // keeping track of where //line directives appeared exactly). + // + // For go/types, we just track the file name. + + filename = r.String() + + if r.Bool() { // file base + // Was: "b = token.NewTrimmedFileBase(filename, true)" + } else { // line base + pos := r.pos() + line := r.Uint() + col := r.Uint() + + // Was: "b = token.NewLineBase(pos, filename, true, line, col)" + _, _, _ = pos, line, col + } + pr.retireReader(r) + } + b := filename + pr.posBases[idx] = b + return b +} + +// @@@ Packages + +func (r *reader) pkg() *types.Package { + r.Sync(pkgbits.SyncPkg) + return r.p.pkgIdx(r.Reloc(pkgbits.RelocPkg)) +} + +func (pr *pkgReader) pkgIdx(idx pkgbits.Index) *types.Package { + // TODO(mdempsky): Consider using some non-nil pointer to indicate + // the universe scope, so we don't need to keep re-reading it. + if pkg := pr.pkgs[idx]; pkg != nil { + return pkg + } + + pkg := pr.newReader(pkgbits.RelocPkg, idx, pkgbits.SyncPkgDef).doPkg() + pr.pkgs[idx] = pkg + return pkg +} + +func (r *reader) doPkg() *types.Package { + path := r.String() + switch path { + case "": + path = r.p.PkgPath() + case "builtin": + return nil // universe + case "unsafe": + return types.Unsafe + } + + if pkg := r.p.imports[path]; pkg != nil { + return pkg + } + + name := r.String() + + pkg := types.NewPackage(path, name) + r.p.imports[path] = pkg + + imports := make([]*types.Package, r.Len()) + for i := range imports { + imports[i] = r.pkg() + } + pkg.SetImports(flattenImports(imports)) + + return pkg +} + +// flattenImports returns the transitive closure of all imported +// packages rooted from pkgs. +func flattenImports(pkgs []*types.Package) []*types.Package { + var res []*types.Package + seen := make(map[*types.Package]struct{}) + for _, pkg := range pkgs { + if _, ok := seen[pkg]; ok { + continue + } + seen[pkg] = struct{}{} + res = append(res, pkg) + + // pkg.Imports() is already flattened. + for _, pkg := range pkg.Imports() { + if _, ok := seen[pkg]; ok { + continue + } + seen[pkg] = struct{}{} + res = append(res, pkg) + } + } + return res +} + +// @@@ Types + +func (r *reader) typ() types.Type { + return r.p.typIdx(r.typInfo(), r.dict) +} + +func (r *reader) typInfo() typeInfo { + r.Sync(pkgbits.SyncType) + if r.Bool() { + return typeInfo{idx: pkgbits.Index(r.Len()), derived: true} + } + return typeInfo{idx: r.Reloc(pkgbits.RelocType), derived: false} +} + +func (pr *pkgReader) typIdx(info typeInfo, dict *readerDict) types.Type { + idx := info.idx + var where *types.Type + if info.derived { + where = &dict.derivedTypes[idx] + idx = dict.derived[idx].idx + } else { + where = &pr.typs[idx] + } + + if typ := *where; typ != nil { + return typ + } + + var typ types.Type + { + r := pr.tempReader(pkgbits.RelocType, idx, pkgbits.SyncTypeIdx) + r.dict = dict + + typ = r.doTyp() + assert(typ != nil) + pr.retireReader(r) + } + // See comment in pkgReader.typIdx explaining how this happens. + if prev := *where; prev != nil { + return prev + } + + *where = typ + return typ +} + +func (r *reader) doTyp() (res types.Type) { + switch tag := pkgbits.CodeType(r.Code(pkgbits.SyncType)); tag { + default: + errorf("unhandled type tag: %v", tag) + panic("unreachable") + + case pkgbits.TypeBasic: + return types.Typ[r.Len()] + + case pkgbits.TypeNamed: + obj, targs := r.obj() + name := obj.(*types.TypeName) + if len(targs) != 0 { + t, _ := types.Instantiate(r.p.ctxt, name.Type(), targs, false) + return t + } + return name.Type() + + case pkgbits.TypeTypeParam: + return r.dict.tparams[r.Len()] + + case pkgbits.TypeArray: + len := int64(r.Uint64()) + return types.NewArray(r.typ(), len) + case pkgbits.TypeChan: + dir := types.ChanDir(r.Len()) + return types.NewChan(dir, r.typ()) + case pkgbits.TypeMap: + return types.NewMap(r.typ(), r.typ()) + case pkgbits.TypePointer: + return types.NewPointer(r.typ()) + case pkgbits.TypeSignature: + return r.signature(nil, nil, nil) + case pkgbits.TypeSlice: + return types.NewSlice(r.typ()) + case pkgbits.TypeStruct: + return r.structType() + case pkgbits.TypeInterface: + return r.interfaceType() + case pkgbits.TypeUnion: + return r.unionType() + } +} + +func (r *reader) structType() *types.Struct { + fields := make([]*types.Var, r.Len()) + var tags []string + for i := range fields { + pos := r.pos() + pkg, name := r.selector() + ftyp := r.typ() + tag := r.String() + embedded := r.Bool() + + fields[i] = types.NewField(pos, pkg, name, ftyp, embedded) + if tag != "" { + for len(tags) < i { + tags = append(tags, "") + } + tags = append(tags, tag) + } + } + return types.NewStruct(fields, tags) +} + +func (r *reader) unionType() *types.Union { + terms := make([]*types.Term, r.Len()) + for i := range terms { + terms[i] = types.NewTerm(r.Bool(), r.typ()) + } + return types.NewUnion(terms) +} + +func (r *reader) interfaceType() *types.Interface { + methods := make([]*types.Func, r.Len()) + embeddeds := make([]types.Type, r.Len()) + implicit := len(methods) == 0 && len(embeddeds) == 1 && r.Bool() + + for i := range methods { + pos := r.pos() + pkg, name := r.selector() + mtyp := r.signature(nil, nil, nil) + methods[i] = types.NewFunc(pos, pkg, name, mtyp) + } + + for i := range embeddeds { + embeddeds[i] = r.typ() + } + + iface := types.NewInterfaceType(methods, embeddeds) + if implicit { + iface.MarkImplicit() + } + + // We need to call iface.Complete(), but if there are any embedded + // defined types, then we may not have set their underlying + // interface type yet. So we need to defer calling Complete until + // after we've called SetUnderlying everywhere. + // + // TODO(mdempsky): After CL 424876 lands, it should be safe to call + // iface.Complete() immediately. + r.p.ifaces = append(r.p.ifaces, iface) + + return iface +} + +func (r *reader) signature(recv *types.Var, rtparams, tparams []*types.TypeParam) *types.Signature { + r.Sync(pkgbits.SyncSignature) + + params := r.params() + results := r.params() + variadic := r.Bool() + + return types.NewSignatureType(recv, rtparams, tparams, params, results, variadic) +} + +func (r *reader) params() *types.Tuple { + r.Sync(pkgbits.SyncParams) + + params := make([]*types.Var, r.Len()) + for i := range params { + params[i] = r.param() + } + + return types.NewTuple(params...) +} + +func (r *reader) param() *types.Var { + r.Sync(pkgbits.SyncParam) + + pos := r.pos() + pkg, name := r.localIdent() + typ := r.typ() + + return types.NewParam(pos, pkg, name, typ) +} + +// @@@ Objects + +func (r *reader) obj() (types.Object, []types.Type) { + r.Sync(pkgbits.SyncObject) + + assert(!r.Bool()) + + pkg, name := r.p.objIdx(r.Reloc(pkgbits.RelocObj)) + obj := pkgScope(pkg).Lookup(name) + + targs := make([]types.Type, r.Len()) + for i := range targs { + targs[i] = r.typ() + } + + return obj, targs +} + +func (pr *pkgReader) objIdx(idx pkgbits.Index) (*types.Package, string) { + + var objPkg *types.Package + var objName string + var tag pkgbits.CodeObj + { + rname := pr.tempReader(pkgbits.RelocName, idx, pkgbits.SyncObject1) + + objPkg, objName = rname.qualifiedIdent() + assert(objName != "") + + tag = pkgbits.CodeObj(rname.Code(pkgbits.SyncCodeObj)) + pr.retireReader(rname) + } + + if tag == pkgbits.ObjStub { + assert(objPkg == nil || objPkg == types.Unsafe) + return objPkg, objName + } + + // Ignore local types promoted to global scope (#55110). + if _, suffix := splitVargenSuffix(objName); suffix != "" { + return objPkg, objName + } + + if objPkg.Scope().Lookup(objName) == nil { + dict := pr.objDictIdx(idx) + + r := pr.newReader(pkgbits.RelocObj, idx, pkgbits.SyncObject1) + r.dict = dict + + declare := func(obj types.Object) { + objPkg.Scope().Insert(obj) + } + + switch tag { + default: + panic("weird") + + case pkgbits.ObjAlias: + pos := r.pos() + typ := r.typ() + declare(types.NewTypeName(pos, objPkg, objName, typ)) + + case pkgbits.ObjConst: + pos := r.pos() + typ := r.typ() + val := r.Value() + declare(types.NewConst(pos, objPkg, objName, typ, val)) + + case pkgbits.ObjFunc: + pos := r.pos() + tparams := r.typeParamNames() + sig := r.signature(nil, nil, tparams) + declare(types.NewFunc(pos, objPkg, objName, sig)) + + case pkgbits.ObjType: + pos := r.pos() + + obj := types.NewTypeName(pos, objPkg, objName, nil) + named := types.NewNamed(obj, nil, nil) + declare(obj) + + named.SetTypeParams(r.typeParamNames()) + + setUnderlying := func(underlying types.Type) { + // If the underlying type is an interface, we need to + // duplicate its methods so we can replace the receiver + // parameter's type (#49906). + if iface, ok := underlying.(*types.Interface); ok && iface.NumExplicitMethods() != 0 { + methods := make([]*types.Func, iface.NumExplicitMethods()) + for i := range methods { + fn := iface.ExplicitMethod(i) + sig := fn.Type().(*types.Signature) + + recv := types.NewVar(fn.Pos(), fn.Pkg(), "", named) + methods[i] = types.NewFunc(fn.Pos(), fn.Pkg(), fn.Name(), types.NewSignature(recv, sig.Params(), sig.Results(), sig.Variadic())) + } + + embeds := make([]types.Type, iface.NumEmbeddeds()) + for i := range embeds { + embeds[i] = iface.EmbeddedType(i) + } + + newIface := types.NewInterfaceType(methods, embeds) + r.p.ifaces = append(r.p.ifaces, newIface) + underlying = newIface + } + + named.SetUnderlying(underlying) + } + + // Since go.dev/cl/455279, we can assume rhs.Underlying() will + // always be non-nil. However, to temporarily support users of + // older snapshot releases, we continue to fallback to the old + // behavior for now. + // + // TODO(mdempsky): Remove fallback code and simplify after + // allowing time for snapshot users to upgrade. + rhs := r.typ() + if underlying := rhs.Underlying(); underlying != nil { + setUnderlying(underlying) + } else { + pk := r.p + pk.laterFor(named, func() { + // First be sure that the rhs is initialized, if it needs to be initialized. + delete(pk.laterFors, named) // prevent cycles + if i, ok := pk.laterFors[rhs]; ok { + f := pk.laterFns[i] + pk.laterFns[i] = func() {} // function is running now, so replace it with a no-op + f() // initialize RHS + } + setUnderlying(rhs.Underlying()) + }) + } + + for i, n := 0, r.Len(); i < n; i++ { + named.AddMethod(r.method()) + } + + case pkgbits.ObjVar: + pos := r.pos() + typ := r.typ() + declare(types.NewVar(pos, objPkg, objName, typ)) + } + } + + return objPkg, objName +} + +func (pr *pkgReader) objDictIdx(idx pkgbits.Index) *readerDict { + + var dict readerDict + + { + r := pr.tempReader(pkgbits.RelocObjDict, idx, pkgbits.SyncObject1) + if implicits := r.Len(); implicits != 0 { + errorf("unexpected object with %v implicit type parameter(s)", implicits) + } + + dict.bounds = make([]typeInfo, r.Len()) + for i := range dict.bounds { + dict.bounds[i] = r.typInfo() + } + + dict.derived = make([]derivedInfo, r.Len()) + dict.derivedTypes = make([]types.Type, len(dict.derived)) + for i := range dict.derived { + dict.derived[i] = derivedInfo{r.Reloc(pkgbits.RelocType), r.Bool()} + } + + pr.retireReader(r) + } + // function references follow, but reader doesn't need those + + return &dict +} + +func (r *reader) typeParamNames() []*types.TypeParam { + r.Sync(pkgbits.SyncTypeParamNames) + + // Note: This code assumes it only processes objects without + // implement type parameters. This is currently fine, because + // reader is only used to read in exported declarations, which are + // always package scoped. + + if len(r.dict.bounds) == 0 { + return nil + } + + // Careful: Type parameter lists may have cycles. To allow for this, + // we construct the type parameter list in two passes: first we + // create all the TypeNames and TypeParams, then we construct and + // set the bound type. + + r.dict.tparams = make([]*types.TypeParam, len(r.dict.bounds)) + for i := range r.dict.bounds { + pos := r.pos() + pkg, name := r.localIdent() + + tname := types.NewTypeName(pos, pkg, name, nil) + r.dict.tparams[i] = types.NewTypeParam(tname, nil) + } + + typs := make([]types.Type, len(r.dict.bounds)) + for i, bound := range r.dict.bounds { + typs[i] = r.p.typIdx(bound, r.dict) + } + + // TODO(mdempsky): This is subtle, elaborate further. + // + // We have to save tparams outside of the closure, because + // typeParamNames() can be called multiple times with the same + // dictionary instance. + // + // Also, this needs to happen later to make sure SetUnderlying has + // been called. + // + // TODO(mdempsky): Is it safe to have a single "later" slice or do + // we need to have multiple passes? See comments on CL 386002 and + // go.dev/issue/52104. + tparams := r.dict.tparams + r.p.later(func() { + for i, typ := range typs { + tparams[i].SetConstraint(typ) + } + }) + + return r.dict.tparams +} + +func (r *reader) method() *types.Func { + r.Sync(pkgbits.SyncMethod) + pos := r.pos() + pkg, name := r.selector() + + rparams := r.typeParamNames() + sig := r.signature(r.param(), rparams, nil) + + _ = r.pos() // TODO(mdempsky): Remove; this is a hacker for linker.go. + return types.NewFunc(pos, pkg, name, sig) +} + +func (r *reader) qualifiedIdent() (*types.Package, string) { return r.ident(pkgbits.SyncSym) } +func (r *reader) localIdent() (*types.Package, string) { return r.ident(pkgbits.SyncLocalIdent) } +func (r *reader) selector() (*types.Package, string) { return r.ident(pkgbits.SyncSelector) } + +func (r *reader) ident(marker pkgbits.SyncMarker) (*types.Package, string) { + r.Sync(marker) + return r.pkg(), r.String() +} + +// pkgScope returns pkg.Scope(). +// If pkg is nil, it returns types.Universe instead. +// +// TODO(mdempsky): Remove after x/tools can depend on Go 1.19. +func pkgScope(pkg *types.Package) *types.Scope { + if pkg != nil { + return pkg.Scope() + } + return types.Universe +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/invoke.go b/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/invoke.go index f753368346..d50551693f 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/invoke.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/invoke.go @@ -10,8 +10,10 @@ import ( "context" "fmt" "io" + "log" "os" "regexp" + "runtime" "strconv" "strings" "sync" @@ -232,6 +234,12 @@ func (i *Invocation) run(ctx context.Context, stdout, stderr io.Writer) error { return runCmdContext(ctx, cmd) } +// DebugHangingGoCommands may be set by tests to enable additional +// instrumentation (including panics) for debugging hanging Go commands. +// +// See golang/go#54461 for details. +var DebugHangingGoCommands = false + // runCmdContext is like exec.CommandContext except it sends os.Interrupt // before os.Kill. func runCmdContext(ctx context.Context, cmd *exec.Cmd) error { @@ -243,11 +251,24 @@ func runCmdContext(ctx context.Context, cmd *exec.Cmd) error { resChan <- cmd.Wait() }() - select { - case err := <-resChan: - return err - case <-ctx.Done(): + // If we're interested in debugging hanging Go commands, stop waiting after a + // minute and panic with interesting information. + if DebugHangingGoCommands { + select { + case err := <-resChan: + return err + case <-time.After(1 * time.Minute): + HandleHangingGoCommand(cmd.Process) + case <-ctx.Done(): + } + } else { + select { + case err := <-resChan: + return err + case <-ctx.Done(): + } } + // Cancelled. Interrupt and see if it ends voluntarily. cmd.Process.Signal(os.Interrupt) select { @@ -255,17 +276,71 @@ func runCmdContext(ctx context.Context, cmd *exec.Cmd) error { return err case <-time.After(time.Second): } + // Didn't shut down in response to interrupt. Kill it hard. - cmd.Process.Kill() + // TODO(rfindley): per advice from bcmills@, it may be better to send SIGQUIT + // on certain platforms, such as unix. + if err := cmd.Process.Kill(); err != nil && DebugHangingGoCommands { + // Don't panic here as this reliably fails on windows with EINVAL. + log.Printf("error killing the Go command: %v", err) + } + + // See above: don't wait indefinitely if we're debugging hanging Go commands. + if DebugHangingGoCommands { + select { + case err := <-resChan: + return err + case <-time.After(10 * time.Second): // a shorter wait as resChan should return quickly following Kill + HandleHangingGoCommand(cmd.Process) + } + } return <-resChan } +func HandleHangingGoCommand(proc *os.Process) { + switch runtime.GOOS { + case "linux", "darwin", "freebsd", "netbsd": + fmt.Fprintln(os.Stderr, `DETECTED A HANGING GO COMMAND + +The gopls test runner has detected a hanging go command. In order to debug +this, the output of ps and lsof/fstat is printed below. + +See golang/go#54461 for more details.`) + + fmt.Fprintln(os.Stderr, "\nps axo ppid,pid,command:") + fmt.Fprintln(os.Stderr, "-------------------------") + psCmd := exec.Command("ps", "axo", "ppid,pid,command") + psCmd.Stdout = os.Stderr + psCmd.Stderr = os.Stderr + if err := psCmd.Run(); err != nil { + panic(fmt.Sprintf("running ps: %v", err)) + } + + listFiles := "lsof" + if runtime.GOOS == "freebsd" || runtime.GOOS == "netbsd" { + listFiles = "fstat" + } + + fmt.Fprintln(os.Stderr, "\n"+listFiles+":") + fmt.Fprintln(os.Stderr, "-----") + listFilesCmd := exec.Command(listFiles) + listFilesCmd.Stdout = os.Stderr + listFilesCmd.Stderr = os.Stderr + if err := listFilesCmd.Run(); err != nil { + panic(fmt.Sprintf("running %s: %v", listFiles, err)) + } + } + panic(fmt.Sprintf("detected hanging go command (pid %d): see golang/go#54461 for more details", proc.Pid)) +} + func cmdDebugStr(cmd *exec.Cmd) string { env := make(map[string]string) for _, kv := range cmd.Env { split := strings.SplitN(kv, "=", 2) - k, v := split[0], split[1] - env[k] = v + if len(split) == 2 { + k, v := split[0], split[1] + env[k] = v + } } var args []string diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/version.go b/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/version.go index 7130436802..307a76d474 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/version.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gocommand/version.go @@ -7,11 +7,19 @@ package gocommand import ( "context" "fmt" + "regexp" "strings" ) -// GoVersion checks the go version by running "go list" with modules off. -// It returns the X in Go 1.X. +// GoVersion reports the minor version number of the highest release +// tag built into the go command on the PATH. +// +// Note that this may be higher than the version of the go tool used +// to build this application, and thus the versions of the standard +// go/{scanner,parser,ast,types} packages that are linked into it. +// In that case, callers should either downgrade to the version of +// go used to build the application, or report an error that the +// application is too old to use the go command on the PATH. func GoVersion(ctx context.Context, inv Invocation, r *Runner) (int, error) { inv.Verb = "list" inv.Args = []string{"-e", "-f", `{{context.ReleaseTags}}`, `--`, `unsafe`} @@ -38,7 +46,7 @@ func GoVersion(ctx context.Context, inv Invocation, r *Runner) (int, error) { if len(stdout) < 3 { return 0, fmt.Errorf("bad ReleaseTags output: %q", stdout) } - // Split up "[go1.1 go1.15]" + // Split up "[go1.1 go1.15]" and return highest go1.X value. tags := strings.Fields(stdout[1 : len(stdout)-2]) for i := len(tags) - 1; i >= 0; i-- { var version int @@ -49,3 +57,25 @@ func GoVersion(ctx context.Context, inv Invocation, r *Runner) (int, error) { } return 0, fmt.Errorf("no parseable ReleaseTags in %v", tags) } + +// GoVersionOutput returns the complete output of the go version command. +func GoVersionOutput(ctx context.Context, inv Invocation, r *Runner) (string, error) { + inv.Verb = "version" + goVersion, err := r.Run(ctx, inv) + if err != nil { + return "", err + } + return goVersion.String(), nil +} + +// ParseGoVersionOutput extracts the Go version string +// from the output of the "go version" command. +// Given an unrecognized form, it returns an empty string. +func ParseGoVersionOutput(data string) string { + re := regexp.MustCompile(`^go version (go\S+|devel \S+)`) + m := re.FindStringSubmatch(data) + if len(m) != 2 { + return "" // unrecognized version + } + return m[1] +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/gopathwalk/walk.go b/tools/metrics/vendor/golang.org/x/tools/internal/gopathwalk/walk.go index 925ff53560..1684053226 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/gopathwalk/walk.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/gopathwalk/walk.go @@ -175,8 +175,8 @@ func (w *walker) shouldSkipDir(fi os.FileInfo, dir string) bool { // walk walks through the given path. func (w *walker) walk(path string, typ os.FileMode) error { - dir := filepath.Dir(path) if typ.IsRegular() { + dir := filepath.Dir(path) if dir == w.root.Path && (w.root.Type == RootGOROOT || w.root.Type == RootGOPATH) { // Doesn't make sense to have regular files // directly in your $GOPATH/src or $GOROOT/src. @@ -209,12 +209,7 @@ func (w *walker) walk(path string, typ os.FileMode) error { // Emacs noise. return nil } - fi, err := os.Lstat(path) - if err != nil { - // Just ignore it. - return nil - } - if w.shouldTraverse(dir, fi) { + if w.shouldTraverse(path) { return fastwalk.ErrTraverseLink } } @@ -224,13 +219,8 @@ func (w *walker) walk(path string, typ os.FileMode) error { // shouldTraverse reports whether the symlink fi, found in dir, // should be followed. It makes sure symlinks were never visited // before to avoid symlink loops. -func (w *walker) shouldTraverse(dir string, fi os.FileInfo) bool { - path := filepath.Join(dir, fi.Name()) - target, err := filepath.EvalSymlinks(path) - if err != nil { - return false - } - ts, err := os.Stat(target) +func (w *walker) shouldTraverse(path string) bool { + ts, err := os.Stat(path) if err != nil { fmt.Fprintln(os.Stderr, err) return false @@ -238,7 +228,7 @@ func (w *walker) shouldTraverse(dir string, fi os.FileInfo) bool { if !ts.IsDir() { return false } - if w.shouldSkipDir(ts, dir) { + if w.shouldSkipDir(ts, filepath.Dir(path)) { return false } // Check for symlink loops by statting each directory component diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/imports/fix.go b/tools/metrics/vendor/golang.org/x/tools/internal/imports/fix.go index d859617b77..642a5ac2d7 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/imports/fix.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/imports/fix.go @@ -697,6 +697,9 @@ func candidateImportName(pkg *pkg) string { // GetAllCandidates calls wrapped for each package whose name starts with // searchPrefix, and can be imported from filename with the package name filePkg. +// +// Beware that the wrapped function may be called multiple times concurrently. +// TODO(adonovan): encapsulate the concurrency. func GetAllCandidates(ctx context.Context, wrapped func(ImportFix), searchPrefix, filename, filePkg string, env *ProcessEnv) error { callback := &scanCallback{ rootFound: func(gopathwalk.Root) bool { @@ -796,7 +799,7 @@ func GetPackageExports(ctx context.Context, wrapped func(PackageExport), searchP return getCandidatePkgs(ctx, callback, filename, filePkg, env) } -var RequiredGoEnvVars = []string{"GO111MODULE", "GOFLAGS", "GOINSECURE", "GOMOD", "GOMODCACHE", "GONOPROXY", "GONOSUMDB", "GOPATH", "GOPROXY", "GOROOT", "GOSUMDB"} +var requiredGoEnvVars = []string{"GO111MODULE", "GOFLAGS", "GOINSECURE", "GOMOD", "GOMODCACHE", "GONOPROXY", "GONOSUMDB", "GOPATH", "GOPROXY", "GOROOT", "GOSUMDB", "GOWORK"} // ProcessEnv contains environment variables and settings that affect the use of // the go command, the go/build package, etc. @@ -807,6 +810,11 @@ type ProcessEnv struct { ModFlag string ModFile string + // SkipPathInScan returns true if the path should be skipped from scans of + // the RootCurrentModule root type. The function argument is a clean, + // absolute path. + SkipPathInScan func(string) bool + // Env overrides the OS environment, and can be used to specify // GOPROXY, GO111MODULE, etc. PATH cannot be set here, because // exec.Command will not honor it. @@ -861,7 +869,7 @@ func (e *ProcessEnv) init() error { } foundAllRequired := true - for _, k := range RequiredGoEnvVars { + for _, k := range requiredGoEnvVars { if _, ok := e.Env[k]; !ok { foundAllRequired = false break @@ -877,7 +885,7 @@ func (e *ProcessEnv) init() error { } goEnv := map[string]string{} - stdout, err := e.invokeGo(context.TODO(), "env", append([]string{"-json"}, RequiredGoEnvVars...)...) + stdout, err := e.invokeGo(context.TODO(), "env", append([]string{"-json"}, requiredGoEnvVars...)...) if err != nil { return err } @@ -906,7 +914,7 @@ func (e *ProcessEnv) GetResolver() (Resolver, error) { if err := e.init(); err != nil { return nil, err } - if len(e.Env["GOMOD"]) == 0 { + if len(e.Env["GOMOD"]) == 0 && len(e.Env["GOWORK"]) == 0 { e.resolver = newGopathResolver(e) return e.resolver, nil } @@ -1367,9 +1375,9 @@ func (r *gopathResolver) scan(ctx context.Context, callback *scanCallback) error return err } var roots []gopathwalk.Root - roots = append(roots, gopathwalk.Root{filepath.Join(goenv["GOROOT"], "src"), gopathwalk.RootGOROOT}) + roots = append(roots, gopathwalk.Root{Path: filepath.Join(goenv["GOROOT"], "src"), Type: gopathwalk.RootGOROOT}) for _, p := range filepath.SplitList(goenv["GOPATH"]) { - roots = append(roots, gopathwalk.Root{filepath.Join(p, "src"), gopathwalk.RootGOPATH}) + roots = append(roots, gopathwalk.Root{Path: filepath.Join(p, "src"), Type: gopathwalk.RootGOPATH}) } // The callback is not necessarily safe to use in the goroutine below. Process roots eagerly. roots = filterRoots(roots, callback.rootFound) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/imports/imports.go b/tools/metrics/vendor/golang.org/x/tools/internal/imports/imports.go index 25973989e6..95a88383a7 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/imports/imports.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/imports/imports.go @@ -103,12 +103,17 @@ func ApplyFixes(fixes []*ImportFix, filename string, src []byte, opt *Options, e return formatFile(fileSet, file, src, nil, opt) } -func formatFile(fileSet *token.FileSet, file *ast.File, src []byte, adjust func(orig []byte, src []byte) []byte, opt *Options) ([]byte, error) { - mergeImports(fileSet, file) - sortImports(opt.LocalPrefix, fileSet, file) - imps := astutil.Imports(fileSet, file) +// formatFile formats the file syntax tree. +// It may mutate the token.FileSet. +// +// If an adjust function is provided, it is called after formatting +// with the original source (formatFile's src parameter) and the +// formatted file, and returns the postpocessed result. +func formatFile(fset *token.FileSet, file *ast.File, src []byte, adjust func(orig []byte, src []byte) []byte, opt *Options) ([]byte, error) { + mergeImports(file) + sortImports(opt.LocalPrefix, fset.File(file.Pos()), file) var spacesBefore []string // import paths we need spaces before - for _, impSection := range imps { + for _, impSection := range astutil.Imports(fset, file) { // Within each block of contiguous imports, see if any // import lines are in different group numbers. If so, // we'll need to put a space between them so it's @@ -132,7 +137,7 @@ func formatFile(fileSet *token.FileSet, file *ast.File, src []byte, adjust func( printConfig := &printer.Config{Mode: printerMode, Tabwidth: opt.TabWidth} var buf bytes.Buffer - err := printConfig.Fprint(&buf, fileSet, file) + err := printConfig.Fprint(&buf, fset, file) if err != nil { return nil, err } @@ -276,11 +281,11 @@ func cutSpace(b []byte) (before, middle, after []byte) { } // matchSpace reformats src to use the same space context as orig. -// 1) If orig begins with blank lines, matchSpace inserts them at the beginning of src. -// 2) matchSpace copies the indentation of the first non-blank line in orig -// to every non-blank line in src. -// 3) matchSpace copies the trailing space from orig and uses it in place -// of src's trailing space. +// 1. If orig begins with blank lines, matchSpace inserts them at the beginning of src. +// 2. matchSpace copies the indentation of the first non-blank line in orig +// to every non-blank line in src. +// 3. matchSpace copies the trailing space from orig and uses it in place +// of src's trailing space. func matchSpace(orig []byte, src []byte) []byte { before, _, after := cutSpace(orig) i := bytes.LastIndex(before, []byte{'\n'}) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/imports/mod.go b/tools/metrics/vendor/golang.org/x/tools/internal/imports/mod.go index 2bcf41f5fa..7d99d04ca8 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/imports/mod.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/imports/mod.go @@ -70,9 +70,17 @@ func (r *ModuleResolver) init() error { Logf: r.env.Logf, WorkingDir: r.env.WorkingDir, } - vendorEnabled, mainModVendor, err := gocommand.VendorEnabled(context.TODO(), inv, r.env.GocmdRunner) - if err != nil { - return err + + vendorEnabled := false + var mainModVendor *gocommand.ModuleJSON + + // Module vendor directories are ignored in workspace mode: + // https://go.googlesource.com/proposal/+/master/design/45713-workspace.md + if len(r.env.Env["GOWORK"]) == 0 { + vendorEnabled, mainModVendor, err = gocommand.VendorEnabled(context.TODO(), inv, r.env.GocmdRunner) + if err != nil { + return err + } } if mainModVendor != nil && vendorEnabled { @@ -121,22 +129,22 @@ func (r *ModuleResolver) init() error { }) r.roots = []gopathwalk.Root{ - {filepath.Join(goenv["GOROOT"], "/src"), gopathwalk.RootGOROOT}, + {Path: filepath.Join(goenv["GOROOT"], "/src"), Type: gopathwalk.RootGOROOT}, } r.mainByDir = make(map[string]*gocommand.ModuleJSON) for _, main := range r.mains { - r.roots = append(r.roots, gopathwalk.Root{main.Dir, gopathwalk.RootCurrentModule}) + r.roots = append(r.roots, gopathwalk.Root{Path: main.Dir, Type: gopathwalk.RootCurrentModule}) r.mainByDir[main.Dir] = main } if vendorEnabled { - r.roots = append(r.roots, gopathwalk.Root{r.dummyVendorMod.Dir, gopathwalk.RootOther}) + r.roots = append(r.roots, gopathwalk.Root{Path: r.dummyVendorMod.Dir, Type: gopathwalk.RootOther}) } else { addDep := func(mod *gocommand.ModuleJSON) { if mod.Replace == nil { // This is redundant with the cache, but we'll skip it cheaply enough. - r.roots = append(r.roots, gopathwalk.Root{mod.Dir, gopathwalk.RootModuleCache}) + r.roots = append(r.roots, gopathwalk.Root{Path: mod.Dir, Type: gopathwalk.RootModuleCache}) } else { - r.roots = append(r.roots, gopathwalk.Root{mod.Dir, gopathwalk.RootOther}) + r.roots = append(r.roots, gopathwalk.Root{Path: mod.Dir, Type: gopathwalk.RootOther}) } } // Walk dependent modules before scanning the full mod cache, direct deps first. @@ -150,7 +158,7 @@ func (r *ModuleResolver) init() error { addDep(mod) } } - r.roots = append(r.roots, gopathwalk.Root{r.moduleCacheDir, gopathwalk.RootModuleCache}) + r.roots = append(r.roots, gopathwalk.Root{Path: r.moduleCacheDir, Type: gopathwalk.RootModuleCache}) } r.scannedRoots = map[gopathwalk.Root]bool{} @@ -458,6 +466,16 @@ func (r *ModuleResolver) scan(ctx context.Context, callback *scanCallback) error // We assume cached directories are fully cached, including all their // children, and have not changed. We can skip them. skip := func(root gopathwalk.Root, dir string) bool { + if r.env.SkipPathInScan != nil && root.Type == gopathwalk.RootCurrentModule { + if root.Path == dir { + return false + } + + if r.env.SkipPathInScan(filepath.Clean(dir)) { + return true + } + } + info, ok := r.cacheLoad(dir) if !ok { return false diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/imports/sortimports.go b/tools/metrics/vendor/golang.org/x/tools/internal/imports/sortimports.go index dc52372e48..1a0a7ebd9e 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/imports/sortimports.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/imports/sortimports.go @@ -3,6 +3,7 @@ // license that can be found in the LICENSE file. // Hacked up copy of go/ast/import.go +// Modified to use a single token.File in preference to a FileSet. package imports @@ -16,7 +17,9 @@ import ( // sortImports sorts runs of consecutive import lines in import blocks in f. // It also removes duplicate imports when it is possible to do so without data loss. -func sortImports(localPrefix string, fset *token.FileSet, f *ast.File) { +// +// It may mutate the token.File. +func sortImports(localPrefix string, tokFile *token.File, f *ast.File) { for i, d := range f.Decls { d, ok := d.(*ast.GenDecl) if !ok || d.Tok != token.IMPORT { @@ -39,21 +42,22 @@ func sortImports(localPrefix string, fset *token.FileSet, f *ast.File) { i := 0 specs := d.Specs[:0] for j, s := range d.Specs { - if j > i && fset.Position(s.Pos()).Line > 1+fset.Position(d.Specs[j-1].End()).Line { + if j > i && tokFile.Line(s.Pos()) > 1+tokFile.Line(d.Specs[j-1].End()) { // j begins a new run. End this one. - specs = append(specs, sortSpecs(localPrefix, fset, f, d.Specs[i:j])...) + specs = append(specs, sortSpecs(localPrefix, tokFile, f, d.Specs[i:j])...) i = j } } - specs = append(specs, sortSpecs(localPrefix, fset, f, d.Specs[i:])...) + specs = append(specs, sortSpecs(localPrefix, tokFile, f, d.Specs[i:])...) d.Specs = specs // Deduping can leave a blank line before the rparen; clean that up. + // Ignore line directives. if len(d.Specs) > 0 { lastSpec := d.Specs[len(d.Specs)-1] - lastLine := fset.Position(lastSpec.Pos()).Line - if rParenLine := fset.Position(d.Rparen).Line; rParenLine > lastLine+1 { - fset.File(d.Rparen).MergeLine(rParenLine - 1) + lastLine := tokFile.PositionFor(lastSpec.Pos(), false).Line + if rParenLine := tokFile.PositionFor(d.Rparen, false).Line; rParenLine > lastLine+1 { + tokFile.MergeLine(rParenLine - 1) // has side effects! } } } @@ -62,7 +66,7 @@ func sortImports(localPrefix string, fset *token.FileSet, f *ast.File) { // mergeImports merges all the import declarations into the first one. // Taken from golang.org/x/tools/ast/astutil. // This does not adjust line numbers properly -func mergeImports(fset *token.FileSet, f *ast.File) { +func mergeImports(f *ast.File) { if len(f.Decls) <= 1 { return } @@ -144,7 +148,9 @@ type posSpan struct { End token.Pos } -func sortSpecs(localPrefix string, fset *token.FileSet, f *ast.File, specs []ast.Spec) []ast.Spec { +// sortSpecs sorts the import specs within each import decl. +// It may mutate the token.File. +func sortSpecs(localPrefix string, tokFile *token.File, f *ast.File, specs []ast.Spec) []ast.Spec { // Can't short-circuit here even if specs are already sorted, // since they might yet need deduplication. // A lone import, however, may be safely ignored. @@ -160,7 +166,7 @@ func sortSpecs(localPrefix string, fset *token.FileSet, f *ast.File, specs []ast // Identify comments in this range. // Any comment from pos[0].Start to the final line counts. - lastLine := fset.Position(pos[len(pos)-1].End).Line + lastLine := tokFile.Line(pos[len(pos)-1].End) cstart := len(f.Comments) cend := len(f.Comments) for i, g := range f.Comments { @@ -170,7 +176,7 @@ func sortSpecs(localPrefix string, fset *token.FileSet, f *ast.File, specs []ast if i < cstart { cstart = i } - if fset.Position(g.End()).Line > lastLine { + if tokFile.Line(g.End()) > lastLine { cend = i break } @@ -203,7 +209,7 @@ func sortSpecs(localPrefix string, fset *token.FileSet, f *ast.File, specs []ast deduped = append(deduped, s) } else { p := s.Pos() - fset.File(p).MergeLine(fset.Position(p).Line) + tokFile.MergeLine(tokFile.Line(p)) // has side effects! } } specs = deduped @@ -234,21 +240,21 @@ func sortSpecs(localPrefix string, fset *token.FileSet, f *ast.File, specs []ast // Fixup comments can insert blank lines, because import specs are on different lines. // We remove those blank lines here by merging import spec to the first import spec line. - firstSpecLine := fset.Position(specs[0].Pos()).Line + firstSpecLine := tokFile.Line(specs[0].Pos()) for _, s := range specs[1:] { p := s.Pos() - line := fset.File(p).Line(p) + line := tokFile.Line(p) for previousLine := line - 1; previousLine >= firstSpecLine; { // MergeLine can panic. Avoid the panic at the cost of not removing the blank line // golang/go#50329 - if previousLine > 0 && previousLine < fset.File(p).LineCount() { - fset.File(p).MergeLine(previousLine) + if previousLine > 0 && previousLine < tokFile.LineCount() { + tokFile.MergeLine(previousLine) // has side effects! previousLine-- } else { // try to gather some data to diagnose how this could happen req := "Please report what the imports section of your go file looked like." log.Printf("panic avoided: first:%d line:%d previous:%d max:%d. %s", - firstSpecLine, line, previousLine, fset.File(p).LineCount(), req) + firstSpecLine, line, previousLine, tokFile.LineCount(), req) } } } diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/imports/zstdlib.go b/tools/metrics/vendor/golang.org/x/tools/internal/imports/zstdlib.go index 7de2be9b4b..31a75949cd 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/imports/zstdlib.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/imports/zstdlib.go @@ -1,11 +1,16 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + // Code generated by mkstdlib.go. DO NOT EDIT. package imports var stdlib = map[string][]string{ - "archive/tar": []string{ + "archive/tar": { "ErrFieldTooLong", "ErrHeader", + "ErrInsecurePath", "ErrWriteAfterClose", "ErrWriteTooLong", "FileInfoHeader", @@ -34,13 +39,14 @@ var stdlib = map[string][]string{ "TypeXHeader", "Writer", }, - "archive/zip": []string{ + "archive/zip": { "Compressor", "Decompressor", "Deflate", "ErrAlgorithm", "ErrChecksum", "ErrFormat", + "ErrInsecurePath", "File", "FileHeader", "FileInfoHeader", @@ -54,7 +60,7 @@ var stdlib = map[string][]string{ "Store", "Writer", }, - "bufio": []string{ + "bufio": { "ErrAdvanceTooFar", "ErrBadReadCount", "ErrBufferFull", @@ -81,13 +87,17 @@ var stdlib = map[string][]string{ "SplitFunc", "Writer", }, - "bytes": []string{ + "bytes": { "Buffer", + "Clone", "Compare", "Contains", "ContainsAny", "ContainsRune", "Count", + "Cut", + "CutPrefix", + "CutSuffix", "Equal", "EqualFold", "ErrTooLarge", @@ -137,11 +147,11 @@ var stdlib = map[string][]string{ "TrimSpace", "TrimSuffix", }, - "compress/bzip2": []string{ + "compress/bzip2": { "NewReader", "StructuralError", }, - "compress/flate": []string{ + "compress/flate": { "BestCompression", "BestSpeed", "CorruptInputError", @@ -159,7 +169,7 @@ var stdlib = map[string][]string{ "WriteError", "Writer", }, - "compress/gzip": []string{ + "compress/gzip": { "BestCompression", "BestSpeed", "DefaultCompression", @@ -174,7 +184,7 @@ var stdlib = map[string][]string{ "Reader", "Writer", }, - "compress/lzw": []string{ + "compress/lzw": { "LSB", "MSB", "NewReader", @@ -183,7 +193,7 @@ var stdlib = map[string][]string{ "Reader", "Writer", }, - "compress/zlib": []string{ + "compress/zlib": { "BestCompression", "BestSpeed", "DefaultCompression", @@ -200,7 +210,7 @@ var stdlib = map[string][]string{ "Resetter", "Writer", }, - "container/heap": []string{ + "container/heap": { "Fix", "Init", "Interface", @@ -208,28 +218,31 @@ var stdlib = map[string][]string{ "Push", "Remove", }, - "container/list": []string{ + "container/list": { "Element", "List", "New", }, - "container/ring": []string{ + "container/ring": { "New", "Ring", }, - "context": []string{ + "context": { "Background", + "CancelCauseFunc", "CancelFunc", "Canceled", + "Cause", "Context", "DeadlineExceeded", "TODO", "WithCancel", + "WithCancelCause", "WithDeadline", "WithTimeout", "WithValue", }, - "crypto": []string{ + "crypto": { "BLAKE2b_256", "BLAKE2b_384", "BLAKE2b_512", @@ -258,12 +271,12 @@ var stdlib = map[string][]string{ "Signer", "SignerOpts", }, - "crypto/aes": []string{ + "crypto/aes": { "BlockSize", "KeySizeError", "NewCipher", }, - "crypto/cipher": []string{ + "crypto/cipher": { "AEAD", "Block", "BlockMode", @@ -280,13 +293,13 @@ var stdlib = map[string][]string{ "StreamReader", "StreamWriter", }, - "crypto/des": []string{ + "crypto/des": { "BlockSize", "KeySizeError", "NewCipher", "NewTripleDESCipher", }, - "crypto/dsa": []string{ + "crypto/dsa": { "ErrInvalidPublicKey", "GenerateKey", "GenerateParameters", @@ -301,7 +314,16 @@ var stdlib = map[string][]string{ "Sign", "Verify", }, - "crypto/ecdsa": []string{ + "crypto/ecdh": { + "Curve", + "P256", + "P384", + "P521", + "PrivateKey", + "PublicKey", + "X25519", + }, + "crypto/ecdsa": { "GenerateKey", "PrivateKey", "PublicKey", @@ -310,9 +332,10 @@ var stdlib = map[string][]string{ "Verify", "VerifyASN1", }, - "crypto/ed25519": []string{ + "crypto/ed25519": { "GenerateKey", "NewKeyFromSeed", + "Options", "PrivateKey", "PrivateKeySize", "PublicKey", @@ -321,8 +344,9 @@ var stdlib = map[string][]string{ "Sign", "SignatureSize", "Verify", + "VerifyWithOptions", }, - "crypto/elliptic": []string{ + "crypto/elliptic": { "Curve", "CurveParams", "GenerateKey", @@ -335,28 +359,28 @@ var stdlib = map[string][]string{ "Unmarshal", "UnmarshalCompressed", }, - "crypto/hmac": []string{ + "crypto/hmac": { "Equal", "New", }, - "crypto/md5": []string{ + "crypto/md5": { "BlockSize", "New", "Size", "Sum", }, - "crypto/rand": []string{ + "crypto/rand": { "Int", "Prime", "Read", "Reader", }, - "crypto/rc4": []string{ + "crypto/rc4": { "Cipher", "KeySizeError", "NewCipher", }, - "crypto/rsa": []string{ + "crypto/rsa": { "CRTValue", "DecryptOAEP", "DecryptPKCS1v15", @@ -381,13 +405,13 @@ var stdlib = map[string][]string{ "VerifyPKCS1v15", "VerifyPSS", }, - "crypto/sha1": []string{ + "crypto/sha1": { "BlockSize", "New", "Size", "Sum", }, - "crypto/sha256": []string{ + "crypto/sha256": { "BlockSize", "New", "New224", @@ -396,7 +420,7 @@ var stdlib = map[string][]string{ "Sum224", "Sum256", }, - "crypto/sha512": []string{ + "crypto/sha512": { "BlockSize", "New", "New384", @@ -411,17 +435,19 @@ var stdlib = map[string][]string{ "Sum512_224", "Sum512_256", }, - "crypto/subtle": []string{ + "crypto/subtle": { "ConstantTimeByteEq", "ConstantTimeCompare", "ConstantTimeCopy", "ConstantTimeEq", "ConstantTimeLessOrEq", "ConstantTimeSelect", + "XORBytes", }, - "crypto/tls": []string{ + "crypto/tls": { "Certificate", "CertificateRequestInfo", + "CertificateVerificationError", "CipherSuite", "CipherSuiteName", "CipherSuites", @@ -505,7 +531,7 @@ var stdlib = map[string][]string{ "X25519", "X509KeyPair", }, - "crypto/x509": []string{ + "crypto/x509": { "CANotAuthorizedForExtKeyUsage", "CANotAuthorizedForThisName", "CertPool", @@ -587,6 +613,7 @@ var stdlib = map[string][]string{ "ParsePKCS1PublicKey", "ParsePKCS8PrivateKey", "ParsePKIXPublicKey", + "ParseRevocationList", "PublicKeyAlgorithm", "PureEd25519", "RSA", @@ -598,6 +625,7 @@ var stdlib = map[string][]string{ "SHA384WithRSAPSS", "SHA512WithRSA", "SHA512WithRSAPSS", + "SetFallbackRoots", "SignatureAlgorithm", "SystemCertPool", "SystemRootsError", @@ -610,7 +638,7 @@ var stdlib = map[string][]string{ "UnknownSignatureAlgorithm", "VerifyOptions", }, - "crypto/x509/pkix": []string{ + "crypto/x509/pkix": { "AlgorithmIdentifier", "AttributeTypeAndValue", "AttributeTypeAndValueSET", @@ -622,7 +650,7 @@ var stdlib = map[string][]string{ "RevokedCertificate", "TBSCertificateList", }, - "database/sql": []string{ + "database/sql": { "ColumnType", "Conn", "DB", @@ -663,7 +691,7 @@ var stdlib = map[string][]string{ "Tx", "TxOptions", }, - "database/sql/driver": []string{ + "database/sql/driver": { "Bool", "ColumnConverter", "Conn", @@ -711,7 +739,12 @@ var stdlib = map[string][]string{ "ValueConverter", "Valuer", }, - "debug/dwarf": []string{ + "debug/buildinfo": { + "BuildInfo", + "Read", + "ReadFile", + }, + "debug/dwarf": { "AddrType", "ArrayType", "Attr", @@ -962,7 +995,7 @@ var stdlib = map[string][]string{ "UnsupportedType", "VoidType", }, - "debug/elf": []string{ + "debug/elf": { "ARM_MAGIC_TRAMP_NUMBER", "COMPRESS_HIOS", "COMPRESS_HIPROC", @@ -1232,6 +1265,7 @@ var stdlib = map[string][]string{ "EM_L10M", "EM_LANAI", "EM_LATTICEMICO32", + "EM_LOONGARCH", "EM_M16C", "EM_M32", "EM_M32C", @@ -1814,6 +1848,96 @@ var stdlib = map[string][]string{ "R_ARM_XPC25", "R_INFO", "R_INFO32", + "R_LARCH", + "R_LARCH_32", + "R_LARCH_32_PCREL", + "R_LARCH_64", + "R_LARCH_ABS64_HI12", + "R_LARCH_ABS64_LO20", + "R_LARCH_ABS_HI20", + "R_LARCH_ABS_LO12", + "R_LARCH_ADD16", + "R_LARCH_ADD24", + "R_LARCH_ADD32", + "R_LARCH_ADD64", + "R_LARCH_ADD8", + "R_LARCH_B16", + "R_LARCH_B21", + "R_LARCH_B26", + "R_LARCH_COPY", + "R_LARCH_GNU_VTENTRY", + "R_LARCH_GNU_VTINHERIT", + "R_LARCH_GOT64_HI12", + "R_LARCH_GOT64_LO20", + "R_LARCH_GOT64_PC_HI12", + "R_LARCH_GOT64_PC_LO20", + "R_LARCH_GOT_HI20", + "R_LARCH_GOT_LO12", + "R_LARCH_GOT_PC_HI20", + "R_LARCH_GOT_PC_LO12", + "R_LARCH_IRELATIVE", + "R_LARCH_JUMP_SLOT", + "R_LARCH_MARK_LA", + "R_LARCH_MARK_PCREL", + "R_LARCH_NONE", + "R_LARCH_PCALA64_HI12", + "R_LARCH_PCALA64_LO20", + "R_LARCH_PCALA_HI20", + "R_LARCH_PCALA_LO12", + "R_LARCH_RELATIVE", + "R_LARCH_RELAX", + "R_LARCH_SOP_ADD", + "R_LARCH_SOP_AND", + "R_LARCH_SOP_ASSERT", + "R_LARCH_SOP_IF_ELSE", + "R_LARCH_SOP_NOT", + "R_LARCH_SOP_POP_32_S_0_10_10_16_S2", + "R_LARCH_SOP_POP_32_S_0_5_10_16_S2", + "R_LARCH_SOP_POP_32_S_10_12", + "R_LARCH_SOP_POP_32_S_10_16", + "R_LARCH_SOP_POP_32_S_10_16_S2", + "R_LARCH_SOP_POP_32_S_10_5", + "R_LARCH_SOP_POP_32_S_5_20", + "R_LARCH_SOP_POP_32_U", + "R_LARCH_SOP_POP_32_U_10_12", + "R_LARCH_SOP_PUSH_ABSOLUTE", + "R_LARCH_SOP_PUSH_DUP", + "R_LARCH_SOP_PUSH_GPREL", + "R_LARCH_SOP_PUSH_PCREL", + "R_LARCH_SOP_PUSH_PLT_PCREL", + "R_LARCH_SOP_PUSH_TLS_GD", + "R_LARCH_SOP_PUSH_TLS_GOT", + "R_LARCH_SOP_PUSH_TLS_TPREL", + "R_LARCH_SOP_SL", + "R_LARCH_SOP_SR", + "R_LARCH_SOP_SUB", + "R_LARCH_SUB16", + "R_LARCH_SUB24", + "R_LARCH_SUB32", + "R_LARCH_SUB64", + "R_LARCH_SUB8", + "R_LARCH_TLS_DTPMOD32", + "R_LARCH_TLS_DTPMOD64", + "R_LARCH_TLS_DTPREL32", + "R_LARCH_TLS_DTPREL64", + "R_LARCH_TLS_GD_HI20", + "R_LARCH_TLS_GD_PC_HI20", + "R_LARCH_TLS_IE64_HI12", + "R_LARCH_TLS_IE64_LO20", + "R_LARCH_TLS_IE64_PC_HI12", + "R_LARCH_TLS_IE64_PC_LO20", + "R_LARCH_TLS_IE_HI20", + "R_LARCH_TLS_IE_LO12", + "R_LARCH_TLS_IE_PC_HI20", + "R_LARCH_TLS_IE_PC_LO12", + "R_LARCH_TLS_LD_HI20", + "R_LARCH_TLS_LD_PC_HI20", + "R_LARCH_TLS_LE64_HI12", + "R_LARCH_TLS_LE64_LO20", + "R_LARCH_TLS_LE_HI20", + "R_LARCH_TLS_LE_LO12", + "R_LARCH_TLS_TPREL32", + "R_LARCH_TLS_TPREL64", "R_MIPS", "R_MIPS_16", "R_MIPS_26", @@ -1875,15 +1999,25 @@ var stdlib = map[string][]string{ "R_PPC64_ADDR16_HIGH", "R_PPC64_ADDR16_HIGHA", "R_PPC64_ADDR16_HIGHER", + "R_PPC64_ADDR16_HIGHER34", "R_PPC64_ADDR16_HIGHERA", + "R_PPC64_ADDR16_HIGHERA34", "R_PPC64_ADDR16_HIGHEST", + "R_PPC64_ADDR16_HIGHEST34", "R_PPC64_ADDR16_HIGHESTA", + "R_PPC64_ADDR16_HIGHESTA34", "R_PPC64_ADDR16_LO", "R_PPC64_ADDR16_LO_DS", "R_PPC64_ADDR24", "R_PPC64_ADDR32", "R_PPC64_ADDR64", "R_PPC64_ADDR64_LOCAL", + "R_PPC64_COPY", + "R_PPC64_D28", + "R_PPC64_D34", + "R_PPC64_D34_HA30", + "R_PPC64_D34_HI30", + "R_PPC64_D34_LO", "R_PPC64_DTPMOD64", "R_PPC64_DTPREL16", "R_PPC64_DTPREL16_DS", @@ -1897,8 +2031,12 @@ var stdlib = map[string][]string{ "R_PPC64_DTPREL16_HIGHESTA", "R_PPC64_DTPREL16_LO", "R_PPC64_DTPREL16_LO_DS", + "R_PPC64_DTPREL34", "R_PPC64_DTPREL64", "R_PPC64_ENTRY", + "R_PPC64_GLOB_DAT", + "R_PPC64_GNU_VTENTRY", + "R_PPC64_GNU_VTINHERIT", "R_PPC64_GOT16", "R_PPC64_GOT16_DS", "R_PPC64_GOT16_HA", @@ -1909,29 +2047,50 @@ var stdlib = map[string][]string{ "R_PPC64_GOT_DTPREL16_HA", "R_PPC64_GOT_DTPREL16_HI", "R_PPC64_GOT_DTPREL16_LO_DS", + "R_PPC64_GOT_DTPREL_PCREL34", + "R_PPC64_GOT_PCREL34", "R_PPC64_GOT_TLSGD16", "R_PPC64_GOT_TLSGD16_HA", "R_PPC64_GOT_TLSGD16_HI", "R_PPC64_GOT_TLSGD16_LO", + "R_PPC64_GOT_TLSGD_PCREL34", "R_PPC64_GOT_TLSLD16", "R_PPC64_GOT_TLSLD16_HA", "R_PPC64_GOT_TLSLD16_HI", "R_PPC64_GOT_TLSLD16_LO", + "R_PPC64_GOT_TLSLD_PCREL34", "R_PPC64_GOT_TPREL16_DS", "R_PPC64_GOT_TPREL16_HA", "R_PPC64_GOT_TPREL16_HI", "R_PPC64_GOT_TPREL16_LO_DS", + "R_PPC64_GOT_TPREL_PCREL34", "R_PPC64_IRELATIVE", "R_PPC64_JMP_IREL", "R_PPC64_JMP_SLOT", "R_PPC64_NONE", + "R_PPC64_PCREL28", + "R_PPC64_PCREL34", + "R_PPC64_PCREL_OPT", + "R_PPC64_PLT16_HA", + "R_PPC64_PLT16_HI", + "R_PPC64_PLT16_LO", "R_PPC64_PLT16_LO_DS", + "R_PPC64_PLT32", + "R_PPC64_PLT64", + "R_PPC64_PLTCALL", + "R_PPC64_PLTCALL_NOTOC", "R_PPC64_PLTGOT16", "R_PPC64_PLTGOT16_DS", "R_PPC64_PLTGOT16_HA", "R_PPC64_PLTGOT16_HI", "R_PPC64_PLTGOT16_LO", "R_PPC64_PLTGOT_LO_DS", + "R_PPC64_PLTREL32", + "R_PPC64_PLTREL64", + "R_PPC64_PLTSEQ", + "R_PPC64_PLTSEQ_NOTOC", + "R_PPC64_PLT_PCREL34", + "R_PPC64_PLT_PCREL34_NOTOC", "R_PPC64_REL14", "R_PPC64_REL14_BRNTAKEN", "R_PPC64_REL14_BRTAKEN", @@ -1939,12 +2098,28 @@ var stdlib = map[string][]string{ "R_PPC64_REL16DX_HA", "R_PPC64_REL16_HA", "R_PPC64_REL16_HI", + "R_PPC64_REL16_HIGH", + "R_PPC64_REL16_HIGHA", + "R_PPC64_REL16_HIGHER", + "R_PPC64_REL16_HIGHER34", + "R_PPC64_REL16_HIGHERA", + "R_PPC64_REL16_HIGHERA34", + "R_PPC64_REL16_HIGHEST", + "R_PPC64_REL16_HIGHEST34", + "R_PPC64_REL16_HIGHESTA", + "R_PPC64_REL16_HIGHESTA34", "R_PPC64_REL16_LO", "R_PPC64_REL24", "R_PPC64_REL24_NOTOC", + "R_PPC64_REL30", "R_PPC64_REL32", "R_PPC64_REL64", + "R_PPC64_RELATIVE", + "R_PPC64_SECTOFF", "R_PPC64_SECTOFF_DS", + "R_PPC64_SECTOFF_HA", + "R_PPC64_SECTOFF_HI", + "R_PPC64_SECTOFF_LO", "R_PPC64_SECTOFF_LO_DS", "R_PPC64_TLS", "R_PPC64_TLSGD", @@ -1969,7 +2144,11 @@ var stdlib = map[string][]string{ "R_PPC64_TPREL16_HIGHESTA", "R_PPC64_TPREL16_LO", "R_PPC64_TPREL16_LO_DS", + "R_PPC64_TPREL34", "R_PPC64_TPREL64", + "R_PPC64_UADDR16", + "R_PPC64_UADDR32", + "R_PPC64_UADDR64", "R_PPC_ADDR14", "R_PPC_ADDR14_BRNTAKEN", "R_PPC_ADDR14_BRTAKEN", @@ -2308,7 +2487,7 @@ var stdlib = map[string][]string{ "Type", "Version", }, - "debug/gosym": []string{ + "debug/gosym": { "DecodingError", "Func", "LineTable", @@ -2320,7 +2499,7 @@ var stdlib = map[string][]string{ "UnknownFileError", "UnknownLineError", }, - "debug/macho": []string{ + "debug/macho": { "ARM64_RELOC_ADDEND", "ARM64_RELOC_BRANCH26", "ARM64_RELOC_GOT_LOAD_PAGE21", @@ -2450,13 +2629,20 @@ var stdlib = map[string][]string{ "X86_64_RELOC_TLV", "X86_64_RELOC_UNSIGNED", }, - "debug/pe": []string{ + "debug/pe": { "COFFSymbol", + "COFFSymbolAuxFormat5", "COFFSymbolSize", "DataDirectory", "File", "FileHeader", "FormatError", + "IMAGE_COMDAT_SELECT_ANY", + "IMAGE_COMDAT_SELECT_ASSOCIATIVE", + "IMAGE_COMDAT_SELECT_EXACT_MATCH", + "IMAGE_COMDAT_SELECT_LARGEST", + "IMAGE_COMDAT_SELECT_NODUPLICATES", + "IMAGE_COMDAT_SELECT_SAME_SIZE", "IMAGE_DIRECTORY_ENTRY_ARCHITECTURE", "IMAGE_DIRECTORY_ENTRY_BASERELOC", "IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT", @@ -2501,6 +2687,8 @@ var stdlib = map[string][]string{ "IMAGE_FILE_MACHINE_EBC", "IMAGE_FILE_MACHINE_I386", "IMAGE_FILE_MACHINE_IA64", + "IMAGE_FILE_MACHINE_LOONGARCH32", + "IMAGE_FILE_MACHINE_LOONGARCH64", "IMAGE_FILE_MACHINE_M32R", "IMAGE_FILE_MACHINE_MIPS16", "IMAGE_FILE_MACHINE_MIPSFPU", @@ -2508,6 +2696,9 @@ var stdlib = map[string][]string{ "IMAGE_FILE_MACHINE_POWERPC", "IMAGE_FILE_MACHINE_POWERPCFP", "IMAGE_FILE_MACHINE_R4000", + "IMAGE_FILE_MACHINE_RISCV128", + "IMAGE_FILE_MACHINE_RISCV32", + "IMAGE_FILE_MACHINE_RISCV64", "IMAGE_FILE_MACHINE_SH3", "IMAGE_FILE_MACHINE_SH3DSP", "IMAGE_FILE_MACHINE_SH4", @@ -2520,6 +2711,14 @@ var stdlib = map[string][]string{ "IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP", "IMAGE_FILE_SYSTEM", "IMAGE_FILE_UP_SYSTEM_ONLY", + "IMAGE_SCN_CNT_CODE", + "IMAGE_SCN_CNT_INITIALIZED_DATA", + "IMAGE_SCN_CNT_UNINITIALIZED_DATA", + "IMAGE_SCN_LNK_COMDAT", + "IMAGE_SCN_MEM_DISCARDABLE", + "IMAGE_SCN_MEM_EXECUTE", + "IMAGE_SCN_MEM_READ", + "IMAGE_SCN_MEM_WRITE", "IMAGE_SUBSYSTEM_EFI_APPLICATION", "IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER", "IMAGE_SUBSYSTEM_EFI_ROM", @@ -2546,7 +2745,8 @@ var stdlib = map[string][]string{ "StringTable", "Symbol", }, - "debug/plan9obj": []string{ + "debug/plan9obj": { + "ErrNoSymbols", "File", "FileHeader", "Magic386", @@ -2559,16 +2759,16 @@ var stdlib = map[string][]string{ "SectionHeader", "Sym", }, - "embed": []string{ + "embed": { "FS", }, - "encoding": []string{ + "encoding": { "BinaryMarshaler", "BinaryUnmarshaler", "TextMarshaler", "TextUnmarshaler", }, - "encoding/ascii85": []string{ + "encoding/ascii85": { "CorruptInputError", "Decode", "Encode", @@ -2576,7 +2776,7 @@ var stdlib = map[string][]string{ "NewDecoder", "NewEncoder", }, - "encoding/asn1": []string{ + "encoding/asn1": { "BitString", "ClassApplication", "ClassContextSpecific", @@ -2614,7 +2814,7 @@ var stdlib = map[string][]string{ "Unmarshal", "UnmarshalWithParams", }, - "encoding/base32": []string{ + "encoding/base32": { "CorruptInputError", "Encoding", "HexEncoding", @@ -2625,7 +2825,7 @@ var stdlib = map[string][]string{ "StdEncoding", "StdPadding", }, - "encoding/base64": []string{ + "encoding/base64": { "CorruptInputError", "Encoding", "NewDecoder", @@ -2638,7 +2838,10 @@ var stdlib = map[string][]string{ "StdPadding", "URLEncoding", }, - "encoding/binary": []string{ + "encoding/binary": { + "AppendByteOrder", + "AppendUvarint", + "AppendVarint", "BigEndian", "ByteOrder", "LittleEndian", @@ -2655,7 +2858,7 @@ var stdlib = map[string][]string{ "Varint", "Write", }, - "encoding/csv": []string{ + "encoding/csv": { "ErrBareQuote", "ErrFieldCount", "ErrQuote", @@ -2666,7 +2869,7 @@ var stdlib = map[string][]string{ "Reader", "Writer", }, - "encoding/gob": []string{ + "encoding/gob": { "CommonType", "Decoder", "Encoder", @@ -2677,7 +2880,7 @@ var stdlib = map[string][]string{ "Register", "RegisterName", }, - "encoding/hex": []string{ + "encoding/hex": { "Decode", "DecodeString", "DecodedLen", @@ -2691,7 +2894,7 @@ var stdlib = map[string][]string{ "NewDecoder", "NewEncoder", }, - "encoding/json": []string{ + "encoding/json": { "Compact", "Decoder", "Delim", @@ -2718,13 +2921,13 @@ var stdlib = map[string][]string{ "UnsupportedValueError", "Valid", }, - "encoding/pem": []string{ + "encoding/pem": { "Block", "Decode", "Encode", "EncodeToMemory", }, - "encoding/xml": []string{ + "encoding/xml": { "Attr", "CharData", "Comment", @@ -2758,13 +2961,14 @@ var stdlib = map[string][]string{ "UnmarshalerAttr", "UnsupportedTypeError", }, - "errors": []string{ + "errors": { "As", "Is", + "Join", "New", "Unwrap", }, - "expvar": []string{ + "expvar": { "Do", "Float", "Func", @@ -2781,7 +2985,7 @@ var stdlib = map[string][]string{ "String", "Var", }, - "flag": []string{ + "flag": { "Arg", "Args", "Bool", @@ -2814,6 +3018,7 @@ var stdlib = map[string][]string{ "Set", "String", "StringVar", + "TextVar", "Uint", "Uint64", "Uint64Var", @@ -2825,8 +3030,12 @@ var stdlib = map[string][]string{ "Visit", "VisitAll", }, - "fmt": []string{ + "fmt": { + "Append", + "Appendf", + "Appendln", "Errorf", + "FormatString", "Formatter", "Fprint", "Fprintf", @@ -2852,7 +3061,7 @@ var stdlib = map[string][]string{ "State", "Stringer", }, - "go/ast": []string{ + "go/ast": { "ArrayType", "AssignStmt", "Bad", @@ -2906,6 +3115,7 @@ var stdlib = map[string][]string{ "Importer", "IncDecStmt", "IndexExpr", + "IndexListExpr", "Inspect", "InterfaceType", "IsExported", @@ -2954,7 +3164,7 @@ var stdlib = map[string][]string{ "Visitor", "Walk", }, - "go/build": []string{ + "go/build": { "AllowBinary", "ArchChar", "Context", @@ -2971,7 +3181,7 @@ var stdlib = map[string][]string{ "Package", "ToolDir", }, - "go/build/constraint": []string{ + "go/build/constraint": { "AndExpr", "Expr", "IsGoBuild", @@ -2983,7 +3193,7 @@ var stdlib = map[string][]string{ "SyntaxError", "TagExpr", }, - "go/constant": []string{ + "go/constant": { "BinaryOp", "BitLen", "Bool", @@ -3024,7 +3234,7 @@ var stdlib = map[string][]string{ "Val", "Value", }, - "go/doc": []string{ + "go/doc": { "AllDecls", "AllMethods", "Example", @@ -3045,17 +3255,35 @@ var stdlib = map[string][]string{ "Type", "Value", }, - "go/format": []string{ + "go/doc/comment": { + "Block", + "Code", + "DefaultLookupPackage", + "Doc", + "DocLink", + "Heading", + "Italic", + "Link", + "LinkDef", + "List", + "ListItem", + "Paragraph", + "Parser", + "Plain", + "Printer", + "Text", + }, + "go/format": { "Node", "Source", }, - "go/importer": []string{ + "go/importer": { "Default", "For", "ForCompiler", "Lookup", }, - "go/parser": []string{ + "go/parser": { "AllErrors", "DeclarationErrors", "ImportsOnly", @@ -3070,7 +3298,7 @@ var stdlib = map[string][]string{ "SpuriousErrors", "Trace", }, - "go/printer": []string{ + "go/printer": { "CommentedNode", "Config", "Fprint", @@ -3080,7 +3308,7 @@ var stdlib = map[string][]string{ "TabIndent", "UseSpaces", }, - "go/scanner": []string{ + "go/scanner": { "Error", "ErrorHandler", "ErrorList", @@ -3089,7 +3317,7 @@ var stdlib = map[string][]string{ "ScanComments", "Scanner", }, - "go/token": []string{ + "go/token": { "ADD", "ADD_ASSIGN", "AND", @@ -3179,6 +3407,7 @@ var stdlib = map[string][]string{ "SUB", "SUB_ASSIGN", "SWITCH", + "TILDE", "TYPE", "Token", "UnaryPrec", @@ -3186,7 +3415,8 @@ var stdlib = map[string][]string{ "XOR", "XOR_ASSIGN", }, - "go/types": []string{ + "go/types": { + "ArgumentError", "Array", "AssertableTo", "AssignableTo", @@ -3205,6 +3435,7 @@ var stdlib = map[string][]string{ "Complex64", "Config", "Const", + "Context", "ConvertibleTo", "DefPredeclaredTestFuncs", "Default", @@ -3224,6 +3455,8 @@ var stdlib = map[string][]string{ "ImporterFrom", "Info", "Initializer", + "Instance", + "Instantiate", "Int", "Int16", "Int32", @@ -3254,6 +3487,7 @@ var stdlib = map[string][]string{ "NewChan", "NewChecker", "NewConst", + "NewContext", "NewField", "NewFunc", "NewInterface", @@ -3268,10 +3502,14 @@ var stdlib = map[string][]string{ "NewPointer", "NewScope", "NewSignature", + "NewSignatureType", "NewSlice", "NewStruct", + "NewTerm", "NewTuple", "NewTypeName", + "NewTypeParam", + "NewUnion", "NewVar", "Nil", "Object", @@ -3283,6 +3521,7 @@ var stdlib = map[string][]string{ "RecvOnly", "RelativeTo", "Rune", + "Satisfies", "Scope", "Selection", "SelectionKind", @@ -3296,11 +3535,15 @@ var stdlib = map[string][]string{ "StdSizes", "String", "Struct", + "Term", "Tuple", "Typ", "Type", "TypeAndValue", + "TypeList", "TypeName", + "TypeParam", + "TypeParamList", "TypeString", "Uint", "Uint16", @@ -3308,6 +3551,7 @@ var stdlib = map[string][]string{ "Uint64", "Uint8", "Uintptr", + "Union", "Universe", "Unsafe", "UnsafePointer", @@ -3323,17 +3567,17 @@ var stdlib = map[string][]string{ "WriteSignature", "WriteType", }, - "hash": []string{ + "hash": { "Hash", "Hash32", "Hash64", }, - "hash/adler32": []string{ + "hash/adler32": { "Checksum", "New", "Size", }, - "hash/crc32": []string{ + "hash/crc32": { "Castagnoli", "Checksum", "ChecksumIEEE", @@ -3347,7 +3591,7 @@ var stdlib = map[string][]string{ "Table", "Update", }, - "hash/crc64": []string{ + "hash/crc64": { "Checksum", "ECMA", "ISO", @@ -3357,7 +3601,7 @@ var stdlib = map[string][]string{ "Table", "Update", }, - "hash/fnv": []string{ + "hash/fnv": { "New128", "New128a", "New32", @@ -3365,16 +3609,18 @@ var stdlib = map[string][]string{ "New64", "New64a", }, - "hash/maphash": []string{ + "hash/maphash": { + "Bytes", "Hash", "MakeSeed", "Seed", + "String", }, - "html": []string{ + "html": { "EscapeString", "UnescapeString", }, - "html/template": []string{ + "html/template": { "CSS", "ErrAmbigContext", "ErrBadHTML", @@ -3412,7 +3658,7 @@ var stdlib = map[string][]string{ "URL", "URLQueryEscaper", }, - "image": []string{ + "image": { "Alpha", "Alpha16", "Black", @@ -3465,7 +3711,7 @@ var stdlib = map[string][]string{ "ZP", "ZR", }, - "image/color": []string{ + "image/color": { "Alpha", "Alpha16", "Alpha16Model", @@ -3501,11 +3747,11 @@ var stdlib = map[string][]string{ "YCbCrModel", "YCbCrToRGB", }, - "image/color/palette": []string{ + "image/color/palette": { "Plan9", "WebSafe", }, - "image/draw": []string{ + "image/draw": { "Draw", "DrawMask", "Drawer", @@ -3517,7 +3763,7 @@ var stdlib = map[string][]string{ "RGBA64Image", "Src", }, - "image/gif": []string{ + "image/gif": { "Decode", "DecodeAll", "DecodeConfig", @@ -3529,7 +3775,7 @@ var stdlib = map[string][]string{ "GIF", "Options", }, - "image/jpeg": []string{ + "image/jpeg": { "Decode", "DecodeConfig", "DefaultQuality", @@ -3539,7 +3785,7 @@ var stdlib = map[string][]string{ "Reader", "UnsupportedError", }, - "image/png": []string{ + "image/png": { "BestCompression", "BestSpeed", "CompressionLevel", @@ -3554,11 +3800,11 @@ var stdlib = map[string][]string{ "NoCompression", "UnsupportedError", }, - "index/suffixarray": []string{ + "index/suffixarray": { "Index", "New", }, - "io": []string{ + "io": { "ByteReader", "ByteScanner", "ByteWriter", @@ -3577,8 +3823,10 @@ var stdlib = map[string][]string{ "LimitedReader", "MultiReader", "MultiWriter", + "NewOffsetWriter", "NewSectionReader", "NopCloser", + "OffsetWriter", "Pipe", "PipeReader", "PipeWriter", @@ -3610,7 +3858,7 @@ var stdlib = map[string][]string{ "WriterAt", "WriterTo", }, - "io/fs": []string{ + "io/fs": { "DirEntry", "ErrClosed", "ErrExist", @@ -3645,6 +3893,7 @@ var stdlib = map[string][]string{ "ReadDirFile", "ReadFile", "ReadFileFS", + "SkipAll", "SkipDir", "Stat", "StatFS", @@ -3654,7 +3903,7 @@ var stdlib = map[string][]string{ "WalkDir", "WalkDirFunc", }, - "io/ioutil": []string{ + "io/ioutil": { "Discard", "NopCloser", "ReadAll", @@ -3664,7 +3913,7 @@ var stdlib = map[string][]string{ "TempFile", "WriteFile", }, - "log": []string{ + "log": { "Default", "Fatal", "Fatalf", @@ -3693,7 +3942,7 @@ var stdlib = map[string][]string{ "SetPrefix", "Writer", }, - "log/syslog": []string{ + "log/syslog": { "Dial", "LOG_ALERT", "LOG_AUTH", @@ -3728,7 +3977,7 @@ var stdlib = map[string][]string{ "Priority", "Writer", }, - "math": []string{ + "math": { "Abs", "Acos", "Acosh", @@ -3827,7 +4076,7 @@ var stdlib = map[string][]string{ "Y1", "Yn", }, - "math/big": []string{ + "math/big": { "Above", "Accuracy", "AwayFromZero", @@ -3854,7 +4103,7 @@ var stdlib = map[string][]string{ "ToZero", "Word", }, - "math/bits": []string{ + "math/bits": { "Add", "Add32", "Add64", @@ -3906,7 +4155,7 @@ var stdlib = map[string][]string{ "TrailingZeros8", "UintSize", }, - "math/cmplx": []string{ + "math/cmplx": { "Abs", "Acos", "Acosh", @@ -3935,7 +4184,7 @@ var stdlib = map[string][]string{ "Tan", "Tanh", }, - "math/rand": []string{ + "math/rand": { "ExpFloat64", "Float32", "Float64", @@ -3960,7 +4209,7 @@ var stdlib = map[string][]string{ "Uint64", "Zipf", }, - "mime": []string{ + "mime": { "AddExtensionType", "BEncoding", "ErrInvalidMediaParameter", @@ -3972,7 +4221,7 @@ var stdlib = map[string][]string{ "WordDecoder", "WordEncoder", }, - "mime/multipart": []string{ + "mime/multipart": { "ErrMessageTooLarge", "File", "FileHeader", @@ -3983,13 +4232,13 @@ var stdlib = map[string][]string{ "Reader", "Writer", }, - "mime/quotedprintable": []string{ + "mime/quotedprintable": { "NewReader", "NewWriter", "Reader", "Writer", }, - "net": []string{ + "net": { "Addr", "AddrError", "Buffers", @@ -4015,6 +4264,7 @@ var stdlib = map[string][]string{ "FlagLoopback", "FlagMulticast", "FlagPointToPoint", + "FlagRunning", "FlagUp", "Flags", "HardwareAddr", @@ -4080,16 +4330,18 @@ var stdlib = map[string][]string{ "SRV", "SplitHostPort", "TCPAddr", + "TCPAddrFromAddrPort", "TCPConn", "TCPListener", "UDPAddr", + "UDPAddrFromAddrPort", "UDPConn", "UnixAddr", "UnixConn", "UnixListener", "UnknownNetworkError", }, - "net/http": []string{ + "net/http": { "AllowQuerySemicolons", "CanonicalHeaderKey", "Client", @@ -4142,6 +4394,8 @@ var stdlib = map[string][]string{ "ListenAndServe", "ListenAndServeTLS", "LocalAddrContextKey", + "MaxBytesError", + "MaxBytesHandler", "MaxBytesReader", "MethodConnect", "MethodDelete", @@ -4155,6 +4409,7 @@ var stdlib = map[string][]string{ "NewFileTransport", "NewRequest", "NewRequestWithContext", + "NewResponseController", "NewServeMux", "NoBody", "NotFound", @@ -4174,6 +4429,7 @@ var stdlib = map[string][]string{ "RedirectHandler", "Request", "Response", + "ResponseController", "ResponseWriter", "RoundTripper", "SameSite", @@ -4263,25 +4519,25 @@ var stdlib = map[string][]string{ "TrailerPrefix", "Transport", }, - "net/http/cgi": []string{ + "net/http/cgi": { "Handler", "Request", "RequestFromMap", "Serve", }, - "net/http/cookiejar": []string{ + "net/http/cookiejar": { "Jar", "New", "Options", "PublicSuffixList", }, - "net/http/fcgi": []string{ + "net/http/fcgi": { "ErrConnClosed", "ErrRequestAborted", "ProcessEnv", "Serve", }, - "net/http/httptest": []string{ + "net/http/httptest": { "DefaultRemoteAddr", "NewRecorder", "NewRequest", @@ -4291,7 +4547,7 @@ var stdlib = map[string][]string{ "ResponseRecorder", "Server", }, - "net/http/httptrace": []string{ + "net/http/httptrace": { "ClientTrace", "ContextClientTrace", "DNSDoneInfo", @@ -4300,7 +4556,7 @@ var stdlib = map[string][]string{ "WithClientTrace", "WroteRequestInfo", }, - "net/http/httputil": []string{ + "net/http/httputil": { "BufferPool", "ClientConn", "DumpRequest", @@ -4316,10 +4572,11 @@ var stdlib = map[string][]string{ "NewProxyClientConn", "NewServerConn", "NewSingleHostReverseProxy", + "ProxyRequest", "ReverseProxy", "ServerConn", }, - "net/http/pprof": []string{ + "net/http/pprof": { "Cmdline", "Handler", "Index", @@ -4327,7 +4584,7 @@ var stdlib = map[string][]string{ "Symbol", "Trace", }, - "net/mail": []string{ + "net/mail": { "Address", "AddressParser", "ErrHeaderNotPresent", @@ -4338,7 +4595,28 @@ var stdlib = map[string][]string{ "ParseDate", "ReadMessage", }, - "net/rpc": []string{ + "net/netip": { + "Addr", + "AddrFrom16", + "AddrFrom4", + "AddrFromSlice", + "AddrPort", + "AddrPortFrom", + "IPv4Unspecified", + "IPv6LinkLocalAllNodes", + "IPv6LinkLocalAllRouters", + "IPv6Loopback", + "IPv6Unspecified", + "MustParseAddr", + "MustParseAddrPort", + "MustParsePrefix", + "ParseAddr", + "ParseAddrPort", + "ParsePrefix", + "Prefix", + "PrefixFrom", + }, + "net/rpc": { "Accept", "Call", "Client", @@ -4365,14 +4643,14 @@ var stdlib = map[string][]string{ "ServerCodec", "ServerError", }, - "net/rpc/jsonrpc": []string{ + "net/rpc/jsonrpc": { "Dial", "NewClient", "NewClientCodec", "NewServerCodec", "ServeConn", }, - "net/smtp": []string{ + "net/smtp": { "Auth", "CRAMMD5Auth", "Client", @@ -4382,7 +4660,7 @@ var stdlib = map[string][]string{ "SendMail", "ServerInfo", }, - "net/textproto": []string{ + "net/textproto": { "CanonicalMIMEHeaderKey", "Conn", "Dial", @@ -4398,10 +4676,11 @@ var stdlib = map[string][]string{ "TrimString", "Writer", }, - "net/url": []string{ + "net/url": { "Error", "EscapeError", "InvalidHostError", + "JoinPath", "Parse", "ParseQuery", "ParseRequestURI", @@ -4415,7 +4694,7 @@ var stdlib = map[string][]string{ "Userinfo", "Values", }, - "os": []string{ + "os": { "Args", "Chdir", "Chmod", @@ -4531,16 +4810,18 @@ var stdlib = map[string][]string{ "UserHomeDir", "WriteFile", }, - "os/exec": []string{ + "os/exec": { "Cmd", "Command", "CommandContext", + "ErrDot", "ErrNotFound", + "ErrWaitDelay", "Error", "ExitError", "LookPath", }, - "os/signal": []string{ + "os/signal": { "Ignore", "Ignored", "Notify", @@ -4548,7 +4829,7 @@ var stdlib = map[string][]string{ "Reset", "Stop", }, - "os/user": []string{ + "os/user": { "Current", "Group", "Lookup", @@ -4561,7 +4842,7 @@ var stdlib = map[string][]string{ "UnknownUserIdError", "User", }, - "path": []string{ + "path": { "Base", "Clean", "Dir", @@ -4572,7 +4853,7 @@ var stdlib = map[string][]string{ "Match", "Split", }, - "path/filepath": []string{ + "path/filepath": { "Abs", "Base", "Clean", @@ -4584,11 +4865,13 @@ var stdlib = map[string][]string{ "Glob", "HasPrefix", "IsAbs", + "IsLocal", "Join", "ListSeparator", "Match", "Rel", "Separator", + "SkipAll", "SkipDir", "Split", "SplitList", @@ -4598,12 +4881,12 @@ var stdlib = map[string][]string{ "WalkDir", "WalkFunc", }, - "plugin": []string{ + "plugin": { "Open", "Plugin", "Symbol", }, - "reflect": []string{ + "reflect": { "Append", "AppendSlice", "Array", @@ -4641,6 +4924,8 @@ var stdlib = map[string][]string{ "Method", "New", "NewAt", + "Pointer", + "PointerTo", "Ptr", "PtrTo", "RecvDir", @@ -4676,7 +4961,7 @@ var stdlib = map[string][]string{ "VisibleFields", "Zero", }, - "regexp": []string{ + "regexp": { "Compile", "CompilePOSIX", "Match", @@ -4687,7 +4972,7 @@ var stdlib = map[string][]string{ "QuoteMeta", "Regexp", }, - "regexp/syntax": []string{ + "regexp/syntax": { "ClassNL", "Compile", "DotNL", @@ -4708,9 +4993,11 @@ var stdlib = map[string][]string{ "ErrInvalidRepeatOp", "ErrInvalidRepeatSize", "ErrInvalidUTF8", + "ErrLarge", "ErrMissingBracket", "ErrMissingParen", "ErrMissingRepeatArgument", + "ErrNestingDepth", "ErrTrailingBackslash", "ErrUnexpectedParen", "Error", @@ -4765,7 +5052,7 @@ var stdlib = map[string][]string{ "UnicodeGroups", "WasDollar", }, - "runtime": []string{ + "runtime": { "BlockProfile", "BlockProfileRecord", "Breakpoint", @@ -4813,27 +5100,38 @@ var stdlib = map[string][]string{ "UnlockOSThread", "Version", }, - "runtime/cgo": []string{ + "runtime/cgo": { "Handle", + "Incomplete", "NewHandle", }, - "runtime/debug": []string{ + "runtime/coverage": { + "ClearCounters", + "WriteCounters", + "WriteCountersDir", + "WriteMeta", + "WriteMetaDir", + }, + "runtime/debug": { "BuildInfo", + "BuildSetting", "FreeOSMemory", "GCStats", "Module", + "ParseBuildInfo", "PrintStack", "ReadBuildInfo", "ReadGCStats", "SetGCPercent", "SetMaxStack", "SetMaxThreads", + "SetMemoryLimit", "SetPanicOnFault", "SetTraceback", "Stack", "WriteHeapDump", }, - "runtime/metrics": []string{ + "runtime/metrics": { "All", "Description", "Float64Histogram", @@ -4846,7 +5144,7 @@ var stdlib = map[string][]string{ "Value", "ValueKind", }, - "runtime/pprof": []string{ + "runtime/pprof": { "Do", "ForLabels", "Label", @@ -4862,7 +5160,7 @@ var stdlib = map[string][]string{ "WithLabels", "WriteHeapProfile", }, - "runtime/trace": []string{ + "runtime/trace": { "IsEnabled", "Log", "Logf", @@ -4874,7 +5172,8 @@ var stdlib = map[string][]string{ "Task", "WithRegion", }, - "sort": []string{ + "sort": { + "Find", "Float64Slice", "Float64s", "Float64sAreSorted", @@ -4897,7 +5196,7 @@ var stdlib = map[string][]string{ "Strings", "StringsAreSorted", }, - "strconv": []string{ + "strconv": { "AppendBool", "AppendFloat", "AppendInt", @@ -4937,13 +5236,17 @@ var stdlib = map[string][]string{ "Unquote", "UnquoteChar", }, - "strings": []string{ + "strings": { "Builder", + "Clone", "Compare", "Contains", "ContainsAny", "ContainsRune", "Count", + "Cut", + "CutPrefix", + "CutSuffix", "EqualFold", "Fields", "FieldsFunc", @@ -4989,7 +5292,7 @@ var stdlib = map[string][]string{ "TrimSpace", "TrimSuffix", }, - "sync": []string{ + "sync": { "Cond", "Locker", "Map", @@ -5000,24 +5303,28 @@ var stdlib = map[string][]string{ "RWMutex", "WaitGroup", }, - "sync/atomic": []string{ + "sync/atomic": { "AddInt32", "AddInt64", "AddUint32", "AddUint64", "AddUintptr", + "Bool", "CompareAndSwapInt32", "CompareAndSwapInt64", "CompareAndSwapPointer", "CompareAndSwapUint32", "CompareAndSwapUint64", "CompareAndSwapUintptr", + "Int32", + "Int64", "LoadInt32", "LoadInt64", "LoadPointer", "LoadUint32", "LoadUint64", "LoadUintptr", + "Pointer", "StoreInt32", "StoreInt64", "StorePointer", @@ -5030,9 +5337,12 @@ var stdlib = map[string][]string{ "SwapUint32", "SwapUint64", "SwapUintptr", + "Uint32", + "Uint64", + "Uintptr", "Value", }, - "syscall": []string{ + "syscall": { "AF_ALG", "AF_APPLETALK", "AF_ARP", @@ -5106,6 +5416,7 @@ var stdlib = map[string][]string{ "AF_TIPC", "AF_UNIX", "AF_UNSPEC", + "AF_UTUN", "AF_VENDOR00", "AF_VENDOR01", "AF_VENDOR02", @@ -5444,20 +5755,25 @@ var stdlib = map[string][]string{ "CLOCAL", "CLONE_CHILD_CLEARTID", "CLONE_CHILD_SETTID", + "CLONE_CLEAR_SIGHAND", "CLONE_CSIGNAL", "CLONE_DETACHED", "CLONE_FILES", "CLONE_FS", + "CLONE_INTO_CGROUP", "CLONE_IO", + "CLONE_NEWCGROUP", "CLONE_NEWIPC", "CLONE_NEWNET", "CLONE_NEWNS", "CLONE_NEWPID", + "CLONE_NEWTIME", "CLONE_NEWUSER", "CLONE_NEWUTS", "CLONE_PARENT", "CLONE_PARENT_SETTID", "CLONE_PID", + "CLONE_PIDFD", "CLONE_PTRACE", "CLONE_SETTLS", "CLONE_SIGHAND", @@ -6000,6 +6316,7 @@ var stdlib = map[string][]string{ "EPROTONOSUPPORT", "EPROTOTYPE", "EPWROFF", + "EQFULL", "ERANGE", "EREMCHG", "EREMOTE", @@ -6426,6 +6743,7 @@ var stdlib = map[string][]string{ "F_DUPFD", "F_DUPFD_CLOEXEC", "F_EXLCK", + "F_FINDSIGS", "F_FLUSH_DATA", "F_FREEZE_FS", "F_FSCTL", @@ -6436,6 +6754,7 @@ var stdlib = map[string][]string{ "F_FSPRIV", "F_FSVOID", "F_FULLFSYNC", + "F_GETCODEDIR", "F_GETFD", "F_GETFL", "F_GETLEASE", @@ -6449,6 +6768,7 @@ var stdlib = map[string][]string{ "F_GETPATH_MTMINFO", "F_GETPIPE_SZ", "F_GETPROTECTIONCLASS", + "F_GETPROTECTIONLEVEL", "F_GETSIG", "F_GLOBAL_NOCACHE", "F_LOCK", @@ -6481,6 +6801,7 @@ var stdlib = map[string][]string{ "F_SETLK64", "F_SETLKW", "F_SETLKW64", + "F_SETLKWTIMEOUT", "F_SETLK_REMOTE", "F_SETNOSIGPIPE", "F_SETOWN", @@ -6490,9 +6811,11 @@ var stdlib = map[string][]string{ "F_SETSIG", "F_SETSIZE", "F_SHLCK", + "F_SINGLE_WRITER", "F_TEST", "F_THAW_FS", "F_TLOCK", + "F_TRANSCODEKEY", "F_ULOCK", "F_UNLCK", "F_UNLCKSYS", @@ -7688,12 +8011,20 @@ var stdlib = map[string][]string{ "NOFLSH", "NOTE_ABSOLUTE", "NOTE_ATTRIB", + "NOTE_BACKGROUND", "NOTE_CHILD", + "NOTE_CRITICAL", "NOTE_DELETE", "NOTE_EOF", "NOTE_EXEC", "NOTE_EXIT", "NOTE_EXITSTATUS", + "NOTE_EXIT_CSERROR", + "NOTE_EXIT_DECRYPTFAIL", + "NOTE_EXIT_DETAIL", + "NOTE_EXIT_DETAIL_MASK", + "NOTE_EXIT_MEMORY", + "NOTE_EXIT_REPARENTED", "NOTE_EXTEND", "NOTE_FFAND", "NOTE_FFCOPY", @@ -7702,6 +8033,7 @@ var stdlib = map[string][]string{ "NOTE_FFNOP", "NOTE_FFOR", "NOTE_FORK", + "NOTE_LEEWAY", "NOTE_LINK", "NOTE_LOWAT", "NOTE_NONE", @@ -7780,6 +8112,7 @@ var stdlib = map[string][]string{ "O_CREAT", "O_DIRECT", "O_DIRECTORY", + "O_DP_GETRAWENCRYPTED", "O_DSYNC", "O_EVTONLY", "O_EXCL", @@ -8069,6 +8402,7 @@ var stdlib = map[string][]string{ "RLIMIT_AS", "RLIMIT_CORE", "RLIMIT_CPU", + "RLIMIT_CPU_USAGE_MONITOR", "RLIMIT_DATA", "RLIMIT_FSIZE", "RLIMIT_NOFILE", @@ -8181,9 +8515,11 @@ var stdlib = map[string][]string{ "RTF_PROTO1", "RTF_PROTO2", "RTF_PROTO3", + "RTF_PROXY", "RTF_REINSTATE", "RTF_REJECT", "RTF_RNH_LOCKED", + "RTF_ROUTER", "RTF_SOURCE", "RTF_SRC", "RTF_STATIC", @@ -8702,6 +9038,7 @@ var stdlib = map[string][]string{ "SO_NO_OFFLOAD", "SO_NP_EXTENSIONS", "SO_NREAD", + "SO_NUMRCVPKT", "SO_NWRITE", "SO_OOBINLINE", "SO_OVERFLOWED", @@ -8871,6 +9208,7 @@ var stdlib = map[string][]string{ "SYS_CREAT", "SYS_CREATE_MODULE", "SYS_CSOPS", + "SYS_CSOPS_AUDITTOKEN", "SYS_DELETE", "SYS_DELETE_MODULE", "SYS_DUP", @@ -9057,6 +9395,7 @@ var stdlib = map[string][]string{ "SYS_JAIL_GET", "SYS_JAIL_REMOVE", "SYS_JAIL_SET", + "SYS_KAS_INFO", "SYS_KDEBUG_TRACE", "SYS_KENV", "SYS_KEVENT", @@ -9084,6 +9423,7 @@ var stdlib = map[string][]string{ "SYS_LCHMOD", "SYS_LCHOWN", "SYS_LCHOWN32", + "SYS_LEDGER", "SYS_LGETFH", "SYS_LGETXATTR", "SYS_LINK", @@ -9180,6 +9520,7 @@ var stdlib = map[string][]string{ "SYS_OPENAT", "SYS_OPENBSD_POLL", "SYS_OPEN_BY_HANDLE_AT", + "SYS_OPEN_DPROTECTED_NP", "SYS_OPEN_EXTENDED", "SYS_OPEN_NOCANCEL", "SYS_OVADVISE", @@ -9793,6 +10134,7 @@ var stdlib = map[string][]string{ "Syscall18", "Syscall6", "Syscall9", + "SyscallN", "Sysctl", "SysctlUint32", "Sysctlnode", @@ -9811,6 +10153,7 @@ var stdlib = map[string][]string{ "TCP_CONNECTIONTIMEOUT", "TCP_CORK", "TCP_DEFER_ACCEPT", + "TCP_ENABLE_ECN", "TCP_INFO", "TCP_KEEPALIVE", "TCP_KEEPCNT", @@ -9833,11 +10176,13 @@ var stdlib = map[string][]string{ "TCP_NODELAY", "TCP_NOOPT", "TCP_NOPUSH", + "TCP_NOTSENT_LOWAT", "TCP_NSTATES", "TCP_QUICKACK", "TCP_RXT_CONNDROPTIME", "TCP_RXT_FINDROP", "TCP_SACK_ENABLE", + "TCP_SENDMOREACKS", "TCP_SYNCNT", "TCP_VENDOR", "TCP_WINDOW_CLAMP", @@ -10181,7 +10526,7 @@ var stdlib = map[string][]string{ "XP1_UNI_RECV", "XP1_UNI_SEND", }, - "syscall/js": []string{ + "syscall/js": { "CopyBytesToGo", "CopyBytesToJS", "Error", @@ -10202,9 +10547,8 @@ var stdlib = map[string][]string{ "Value", "ValueError", "ValueOf", - "Wrapper", }, - "testing": []string{ + "testing": { "AllocsPerRun", "B", "Benchmark", @@ -10213,9 +10557,11 @@ var stdlib = map[string][]string{ "CoverBlock", "CoverMode", "Coverage", + "F", "Init", "InternalBenchmark", "InternalExample", + "InternalFuzzTarget", "InternalTest", "M", "Main", @@ -10230,12 +10576,12 @@ var stdlib = map[string][]string{ "TB", "Verbose", }, - "testing/fstest": []string{ + "testing/fstest": { "MapFS", "MapFile", "TestFS", }, - "testing/iotest": []string{ + "testing/iotest": { "DataErrReader", "ErrReader", "ErrTimeout", @@ -10247,7 +10593,7 @@ var stdlib = map[string][]string{ "TimeoutReader", "TruncateWriter", }, - "testing/quick": []string{ + "testing/quick": { "Check", "CheckEqual", "CheckEqualError", @@ -10257,7 +10603,7 @@ var stdlib = map[string][]string{ "SetupError", "Value", }, - "text/scanner": []string{ + "text/scanner": { "Char", "Comment", "EOF", @@ -10280,7 +10626,7 @@ var stdlib = map[string][]string{ "String", "TokenString", }, - "text/tabwriter": []string{ + "text/tabwriter": { "AlignRight", "Debug", "DiscardEmptyColumns", @@ -10291,7 +10637,7 @@ var stdlib = map[string][]string{ "TabIndent", "Writer", }, - "text/template": []string{ + "text/template": { "ExecError", "FuncMap", "HTMLEscape", @@ -10309,13 +10655,15 @@ var stdlib = map[string][]string{ "Template", "URLQueryEscaper", }, - "text/template/parse": []string{ + "text/template/parse": { "ActionNode", "BoolNode", "BranchNode", + "BreakNode", "ChainNode", "CommandNode", "CommentNode", + "ContinueNode", "DotNode", "FieldNode", "IdentifierNode", @@ -10329,9 +10677,11 @@ var stdlib = map[string][]string{ "Node", "NodeAction", "NodeBool", + "NodeBreak", "NodeChain", "NodeCommand", "NodeComment", + "NodeContinue", "NodeDot", "NodeField", "NodeIdentifier", @@ -10361,13 +10711,15 @@ var stdlib = map[string][]string{ "VariableNode", "WithNode", }, - "time": []string{ + "time": { "ANSIC", "After", "AfterFunc", "April", "August", "Date", + "DateOnly", + "DateTime", "December", "Duration", "February", @@ -10422,6 +10774,7 @@ var stdlib = map[string][]string{ "Tick", "Ticker", "Time", + "TimeOnly", "Timer", "Tuesday", "UTC", @@ -10433,7 +10786,7 @@ var stdlib = map[string][]string{ "Wednesday", "Weekday", }, - "unicode": []string{ + "unicode": { "ASCII_Hex_Digit", "Adlam", "Ahom", @@ -10719,14 +11072,16 @@ var stdlib = map[string][]string{ "Zp", "Zs", }, - "unicode/utf16": []string{ + "unicode/utf16": { + "AppendRune", "Decode", "DecodeRune", "Encode", "EncodeRune", "IsSurrogate", }, - "unicode/utf8": []string{ + "unicode/utf8": { + "AppendRune", "DecodeLastRune", "DecodeLastRuneInString", "DecodeRune", @@ -10746,11 +11101,15 @@ var stdlib = map[string][]string{ "ValidRune", "ValidString", }, - "unsafe": []string{ + "unsafe": { + "Add", "Alignof", - "ArbitraryType", "Offsetof", "Pointer", "Sizeof", + "Slice", + "SliceData", + "String", + "StringData", }, } diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/packagesinternal/packages.go b/tools/metrics/vendor/golang.org/x/tools/internal/packagesinternal/packages.go index 9702094c59..d9950b1f0b 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/packagesinternal/packages.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/packagesinternal/packages.go @@ -23,6 +23,8 @@ var GetGoCmdRunner = func(config interface{}) *gocommand.Runner { return nil } var SetGoCmdRunner = func(config interface{}, runner *gocommand.Runner) {} var TypecheckCgo int +var DepsErrors int // must be set as a LoadMode to call GetDepsErrors +var ForTest int // must be set as a LoadMode to call GetForTest var SetModFlag = func(config interface{}, value string) {} var SetModFile = func(config interface{}, value string) {} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/codes.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/codes.go new file mode 100644 index 0000000000..f0cabde96e --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/codes.go @@ -0,0 +1,77 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +// A Code is an enum value that can be encoded into bitstreams. +// +// Code types are preferable for enum types, because they allow +// Decoder to detect desyncs. +type Code interface { + // Marker returns the SyncMarker for the Code's dynamic type. + Marker() SyncMarker + + // Value returns the Code's ordinal value. + Value() int +} + +// A CodeVal distinguishes among go/constant.Value encodings. +type CodeVal int + +func (c CodeVal) Marker() SyncMarker { return SyncVal } +func (c CodeVal) Value() int { return int(c) } + +// Note: These values are public and cannot be changed without +// updating the go/types importers. + +const ( + ValBool CodeVal = iota + ValString + ValInt64 + ValBigInt + ValBigRat + ValBigFloat +) + +// A CodeType distinguishes among go/types.Type encodings. +type CodeType int + +func (c CodeType) Marker() SyncMarker { return SyncType } +func (c CodeType) Value() int { return int(c) } + +// Note: These values are public and cannot be changed without +// updating the go/types importers. + +const ( + TypeBasic CodeType = iota + TypeNamed + TypePointer + TypeSlice + TypeArray + TypeChan + TypeMap + TypeSignature + TypeStruct + TypeInterface + TypeUnion + TypeTypeParam +) + +// A CodeObj distinguishes among go/types.Object encodings. +type CodeObj int + +func (c CodeObj) Marker() SyncMarker { return SyncCodeObj } +func (c CodeObj) Value() int { return int(c) } + +// Note: These values are public and cannot be changed without +// updating the go/types importers. + +const ( + ObjAlias CodeObj = iota + ObjConst + ObjType + ObjFunc + ObjVar + ObjStub +) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/decoder.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/decoder.go new file mode 100644 index 0000000000..b92e8e6eb3 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/decoder.go @@ -0,0 +1,517 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +import ( + "encoding/binary" + "errors" + "fmt" + "go/constant" + "go/token" + "io" + "math/big" + "os" + "runtime" + "strings" +) + +// A PkgDecoder provides methods for decoding a package's Unified IR +// export data. +type PkgDecoder struct { + // version is the file format version. + version uint32 + + // sync indicates whether the file uses sync markers. + sync bool + + // pkgPath is the package path for the package to be decoded. + // + // TODO(mdempsky): Remove; unneeded since CL 391014. + pkgPath string + + // elemData is the full data payload of the encoded package. + // Elements are densely and contiguously packed together. + // + // The last 8 bytes of elemData are the package fingerprint. + elemData string + + // elemEnds stores the byte-offset end positions of element + // bitstreams within elemData. + // + // For example, element I's bitstream data starts at elemEnds[I-1] + // (or 0, if I==0) and ends at elemEnds[I]. + // + // Note: elemEnds is indexed by absolute indices, not + // section-relative indices. + elemEnds []uint32 + + // elemEndsEnds stores the index-offset end positions of relocation + // sections within elemEnds. + // + // For example, section K's end positions start at elemEndsEnds[K-1] + // (or 0, if K==0) and end at elemEndsEnds[K]. + elemEndsEnds [numRelocs]uint32 + + scratchRelocEnt []RelocEnt +} + +// PkgPath returns the package path for the package +// +// TODO(mdempsky): Remove; unneeded since CL 391014. +func (pr *PkgDecoder) PkgPath() string { return pr.pkgPath } + +// SyncMarkers reports whether pr uses sync markers. +func (pr *PkgDecoder) SyncMarkers() bool { return pr.sync } + +// NewPkgDecoder returns a PkgDecoder initialized to read the Unified +// IR export data from input. pkgPath is the package path for the +// compilation unit that produced the export data. +// +// TODO(mdempsky): Remove pkgPath parameter; unneeded since CL 391014. +func NewPkgDecoder(pkgPath, input string) PkgDecoder { + pr := PkgDecoder{ + pkgPath: pkgPath, + } + + // TODO(mdempsky): Implement direct indexing of input string to + // avoid copying the position information. + + r := strings.NewReader(input) + + assert(binary.Read(r, binary.LittleEndian, &pr.version) == nil) + + switch pr.version { + default: + panic(fmt.Errorf("unsupported version: %v", pr.version)) + case 0: + // no flags + case 1: + var flags uint32 + assert(binary.Read(r, binary.LittleEndian, &flags) == nil) + pr.sync = flags&flagSyncMarkers != 0 + } + + assert(binary.Read(r, binary.LittleEndian, pr.elemEndsEnds[:]) == nil) + + pr.elemEnds = make([]uint32, pr.elemEndsEnds[len(pr.elemEndsEnds)-1]) + assert(binary.Read(r, binary.LittleEndian, pr.elemEnds[:]) == nil) + + pos, err := r.Seek(0, io.SeekCurrent) + assert(err == nil) + + pr.elemData = input[pos:] + assert(len(pr.elemData)-8 == int(pr.elemEnds[len(pr.elemEnds)-1])) + + return pr +} + +// NumElems returns the number of elements in section k. +func (pr *PkgDecoder) NumElems(k RelocKind) int { + count := int(pr.elemEndsEnds[k]) + if k > 0 { + count -= int(pr.elemEndsEnds[k-1]) + } + return count +} + +// TotalElems returns the total number of elements across all sections. +func (pr *PkgDecoder) TotalElems() int { + return len(pr.elemEnds) +} + +// Fingerprint returns the package fingerprint. +func (pr *PkgDecoder) Fingerprint() [8]byte { + var fp [8]byte + copy(fp[:], pr.elemData[len(pr.elemData)-8:]) + return fp +} + +// AbsIdx returns the absolute index for the given (section, index) +// pair. +func (pr *PkgDecoder) AbsIdx(k RelocKind, idx Index) int { + absIdx := int(idx) + if k > 0 { + absIdx += int(pr.elemEndsEnds[k-1]) + } + if absIdx >= int(pr.elemEndsEnds[k]) { + errorf("%v:%v is out of bounds; %v", k, idx, pr.elemEndsEnds) + } + return absIdx +} + +// DataIdx returns the raw element bitstream for the given (section, +// index) pair. +func (pr *PkgDecoder) DataIdx(k RelocKind, idx Index) string { + absIdx := pr.AbsIdx(k, idx) + + var start uint32 + if absIdx > 0 { + start = pr.elemEnds[absIdx-1] + } + end := pr.elemEnds[absIdx] + + return pr.elemData[start:end] +} + +// StringIdx returns the string value for the given string index. +func (pr *PkgDecoder) StringIdx(idx Index) string { + return pr.DataIdx(RelocString, idx) +} + +// NewDecoder returns a Decoder for the given (section, index) pair, +// and decodes the given SyncMarker from the element bitstream. +func (pr *PkgDecoder) NewDecoder(k RelocKind, idx Index, marker SyncMarker) Decoder { + r := pr.NewDecoderRaw(k, idx) + r.Sync(marker) + return r +} + +// TempDecoder returns a Decoder for the given (section, index) pair, +// and decodes the given SyncMarker from the element bitstream. +// If possible the Decoder should be RetireDecoder'd when it is no longer +// needed, this will avoid heap allocations. +func (pr *PkgDecoder) TempDecoder(k RelocKind, idx Index, marker SyncMarker) Decoder { + r := pr.TempDecoderRaw(k, idx) + r.Sync(marker) + return r +} + +func (pr *PkgDecoder) RetireDecoder(d *Decoder) { + pr.scratchRelocEnt = d.Relocs + d.Relocs = nil +} + +// NewDecoderRaw returns a Decoder for the given (section, index) pair. +// +// Most callers should use NewDecoder instead. +func (pr *PkgDecoder) NewDecoderRaw(k RelocKind, idx Index) Decoder { + r := Decoder{ + common: pr, + k: k, + Idx: idx, + } + + // TODO(mdempsky) r.data.Reset(...) after #44505 is resolved. + r.Data = *strings.NewReader(pr.DataIdx(k, idx)) + + r.Sync(SyncRelocs) + r.Relocs = make([]RelocEnt, r.Len()) + for i := range r.Relocs { + r.Sync(SyncReloc) + r.Relocs[i] = RelocEnt{RelocKind(r.Len()), Index(r.Len())} + } + + return r +} + +func (pr *PkgDecoder) TempDecoderRaw(k RelocKind, idx Index) Decoder { + r := Decoder{ + common: pr, + k: k, + Idx: idx, + } + + r.Data.Reset(pr.DataIdx(k, idx)) + r.Sync(SyncRelocs) + l := r.Len() + if cap(pr.scratchRelocEnt) >= l { + r.Relocs = pr.scratchRelocEnt[:l] + pr.scratchRelocEnt = nil + } else { + r.Relocs = make([]RelocEnt, l) + } + for i := range r.Relocs { + r.Sync(SyncReloc) + r.Relocs[i] = RelocEnt{RelocKind(r.Len()), Index(r.Len())} + } + + return r +} + +// A Decoder provides methods for decoding an individual element's +// bitstream data. +type Decoder struct { + common *PkgDecoder + + Relocs []RelocEnt + Data strings.Reader + + k RelocKind + Idx Index +} + +func (r *Decoder) checkErr(err error) { + if err != nil { + errorf("unexpected decoding error: %w", err) + } +} + +func (r *Decoder) rawUvarint() uint64 { + x, err := readUvarint(&r.Data) + r.checkErr(err) + return x +} + +// readUvarint is a type-specialized copy of encoding/binary.ReadUvarint. +// This avoids the interface conversion and thus has better escape properties, +// which flows up the stack. +func readUvarint(r *strings.Reader) (uint64, error) { + var x uint64 + var s uint + for i := 0; i < binary.MaxVarintLen64; i++ { + b, err := r.ReadByte() + if err != nil { + if i > 0 && err == io.EOF { + err = io.ErrUnexpectedEOF + } + return x, err + } + if b < 0x80 { + if i == binary.MaxVarintLen64-1 && b > 1 { + return x, overflow + } + return x | uint64(b)<> 1) + if ux&1 != 0 { + x = ^x + } + return x +} + +func (r *Decoder) rawReloc(k RelocKind, idx int) Index { + e := r.Relocs[idx] + assert(e.Kind == k) + return e.Idx +} + +// Sync decodes a sync marker from the element bitstream and asserts +// that it matches the expected marker. +// +// If r.common.sync is false, then Sync is a no-op. +func (r *Decoder) Sync(mWant SyncMarker) { + if !r.common.sync { + return + } + + pos, _ := r.Data.Seek(0, io.SeekCurrent) + mHave := SyncMarker(r.rawUvarint()) + writerPCs := make([]int, r.rawUvarint()) + for i := range writerPCs { + writerPCs[i] = int(r.rawUvarint()) + } + + if mHave == mWant { + return + } + + // There's some tension here between printing: + // + // (1) full file paths that tools can recognize (e.g., so emacs + // hyperlinks the "file:line" text for easy navigation), or + // + // (2) short file paths that are easier for humans to read (e.g., by + // omitting redundant or irrelevant details, so it's easier to + // focus on the useful bits that remain). + // + // The current formatting favors the former, as it seems more + // helpful in practice. But perhaps the formatting could be improved + // to better address both concerns. For example, use relative file + // paths if they would be shorter, or rewrite file paths to contain + // "$GOROOT" (like objabi.AbsFile does) if tools can be taught how + // to reliably expand that again. + + fmt.Printf("export data desync: package %q, section %v, index %v, offset %v\n", r.common.pkgPath, r.k, r.Idx, pos) + + fmt.Printf("\nfound %v, written at:\n", mHave) + if len(writerPCs) == 0 { + fmt.Printf("\t[stack trace unavailable; recompile package %q with -d=syncframes]\n", r.common.pkgPath) + } + for _, pc := range writerPCs { + fmt.Printf("\t%s\n", r.common.StringIdx(r.rawReloc(RelocString, pc))) + } + + fmt.Printf("\nexpected %v, reading at:\n", mWant) + var readerPCs [32]uintptr // TODO(mdempsky): Dynamically size? + n := runtime.Callers(2, readerPCs[:]) + for _, pc := range fmtFrames(readerPCs[:n]...) { + fmt.Printf("\t%s\n", pc) + } + + // We already printed a stack trace for the reader, so now we can + // simply exit. Printing a second one with panic or base.Fatalf + // would just be noise. + os.Exit(1) +} + +// Bool decodes and returns a bool value from the element bitstream. +func (r *Decoder) Bool() bool { + r.Sync(SyncBool) + x, err := r.Data.ReadByte() + r.checkErr(err) + assert(x < 2) + return x != 0 +} + +// Int64 decodes and returns an int64 value from the element bitstream. +func (r *Decoder) Int64() int64 { + r.Sync(SyncInt64) + return r.rawVarint() +} + +// Uint64 decodes and returns a uint64 value from the element bitstream. +func (r *Decoder) Uint64() uint64 { + r.Sync(SyncUint64) + return r.rawUvarint() +} + +// Len decodes and returns a non-negative int value from the element bitstream. +func (r *Decoder) Len() int { x := r.Uint64(); v := int(x); assert(uint64(v) == x); return v } + +// Int decodes and returns an int value from the element bitstream. +func (r *Decoder) Int() int { x := r.Int64(); v := int(x); assert(int64(v) == x); return v } + +// Uint decodes and returns a uint value from the element bitstream. +func (r *Decoder) Uint() uint { x := r.Uint64(); v := uint(x); assert(uint64(v) == x); return v } + +// Code decodes a Code value from the element bitstream and returns +// its ordinal value. It's the caller's responsibility to convert the +// result to an appropriate Code type. +// +// TODO(mdempsky): Ideally this method would have signature "Code[T +// Code] T" instead, but we don't allow generic methods and the +// compiler can't depend on generics yet anyway. +func (r *Decoder) Code(mark SyncMarker) int { + r.Sync(mark) + return r.Len() +} + +// Reloc decodes a relocation of expected section k from the element +// bitstream and returns an index to the referenced element. +func (r *Decoder) Reloc(k RelocKind) Index { + r.Sync(SyncUseReloc) + return r.rawReloc(k, r.Len()) +} + +// String decodes and returns a string value from the element +// bitstream. +func (r *Decoder) String() string { + r.Sync(SyncString) + return r.common.StringIdx(r.Reloc(RelocString)) +} + +// Strings decodes and returns a variable-length slice of strings from +// the element bitstream. +func (r *Decoder) Strings() []string { + res := make([]string, r.Len()) + for i := range res { + res[i] = r.String() + } + return res +} + +// Value decodes and returns a constant.Value from the element +// bitstream. +func (r *Decoder) Value() constant.Value { + r.Sync(SyncValue) + isComplex := r.Bool() + val := r.scalar() + if isComplex { + val = constant.BinaryOp(val, token.ADD, constant.MakeImag(r.scalar())) + } + return val +} + +func (r *Decoder) scalar() constant.Value { + switch tag := CodeVal(r.Code(SyncVal)); tag { + default: + panic(fmt.Errorf("unexpected scalar tag: %v", tag)) + + case ValBool: + return constant.MakeBool(r.Bool()) + case ValString: + return constant.MakeString(r.String()) + case ValInt64: + return constant.MakeInt64(r.Int64()) + case ValBigInt: + return constant.Make(r.bigInt()) + case ValBigRat: + num := r.bigInt() + denom := r.bigInt() + return constant.Make(new(big.Rat).SetFrac(num, denom)) + case ValBigFloat: + return constant.Make(r.bigFloat()) + } +} + +func (r *Decoder) bigInt() *big.Int { + v := new(big.Int).SetBytes([]byte(r.String())) + if r.Bool() { + v.Neg(v) + } + return v +} + +func (r *Decoder) bigFloat() *big.Float { + v := new(big.Float).SetPrec(512) + assert(v.UnmarshalText([]byte(r.String())) == nil) + return v +} + +// @@@ Helpers + +// TODO(mdempsky): These should probably be removed. I think they're a +// smell that the export data format is not yet quite right. + +// PeekPkgPath returns the package path for the specified package +// index. +func (pr *PkgDecoder) PeekPkgPath(idx Index) string { + var path string + { + r := pr.TempDecoder(RelocPkg, idx, SyncPkgDef) + path = r.String() + pr.RetireDecoder(&r) + } + if path == "" { + path = pr.pkgPath + } + return path +} + +// PeekObj returns the package path, object name, and CodeObj for the +// specified object index. +func (pr *PkgDecoder) PeekObj(idx Index) (string, string, CodeObj) { + var ridx Index + var name string + var rcode int + { + r := pr.TempDecoder(RelocName, idx, SyncObject1) + r.Sync(SyncSym) + r.Sync(SyncPkg) + ridx = r.Reloc(RelocPkg) + name = r.String() + rcode = r.Code(SyncCodeObj) + pr.RetireDecoder(&r) + } + + path := pr.PeekPkgPath(ridx) + assert(name != "") + + tag := CodeObj(rcode) + + return path, name, tag +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/doc.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/doc.go new file mode 100644 index 0000000000..c8a2796b5e --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/doc.go @@ -0,0 +1,32 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package pkgbits implements low-level coding abstractions for +// Unified IR's export data format. +// +// At a low-level, a package is a collection of bitstream elements. +// Each element has a "kind" and a dense, non-negative index. +// Elements can be randomly accessed given their kind and index. +// +// Individual elements are sequences of variable-length values (e.g., +// integers, booleans, strings, go/constant values, cross-references +// to other elements). Package pkgbits provides APIs for encoding and +// decoding these low-level values, but the details of mapping +// higher-level Go constructs into elements is left to higher-level +// abstractions. +// +// Elements may cross-reference each other with "relocations." For +// example, an element representing a pointer type has a relocation +// referring to the element type. +// +// Go constructs may be composed as a constellation of multiple +// elements. For example, a declared function may have one element to +// describe the object (e.g., its name, type, position), and a +// separate element to describe its function body. This allows readers +// some flexibility in efficiently seeking or re-reading data (e.g., +// inlining requires re-reading the function body for each inlined +// call, without needing to re-read the object-level details). +// +// This is a copy of internal/pkgbits in the Go implementation. +package pkgbits diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/encoder.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/encoder.go new file mode 100644 index 0000000000..6482617a4f --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/encoder.go @@ -0,0 +1,383 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +import ( + "bytes" + "crypto/md5" + "encoding/binary" + "go/constant" + "io" + "math/big" + "runtime" +) + +// currentVersion is the current version number. +// +// - v0: initial prototype +// +// - v1: adds the flags uint32 word +const currentVersion uint32 = 1 + +// A PkgEncoder provides methods for encoding a package's Unified IR +// export data. +type PkgEncoder struct { + // elems holds the bitstream for previously encoded elements. + elems [numRelocs][]string + + // stringsIdx maps previously encoded strings to their index within + // the RelocString section, to allow deduplication. That is, + // elems[RelocString][stringsIdx[s]] == s (if present). + stringsIdx map[string]Index + + // syncFrames is the number of frames to write at each sync + // marker. A negative value means sync markers are omitted. + syncFrames int +} + +// SyncMarkers reports whether pw uses sync markers. +func (pw *PkgEncoder) SyncMarkers() bool { return pw.syncFrames >= 0 } + +// NewPkgEncoder returns an initialized PkgEncoder. +// +// syncFrames is the number of caller frames that should be serialized +// at Sync points. Serializing additional frames results in larger +// export data files, but can help diagnosing desync errors in +// higher-level Unified IR reader/writer code. If syncFrames is +// negative, then sync markers are omitted entirely. +func NewPkgEncoder(syncFrames int) PkgEncoder { + return PkgEncoder{ + stringsIdx: make(map[string]Index), + syncFrames: syncFrames, + } +} + +// DumpTo writes the package's encoded data to out0 and returns the +// package fingerprint. +func (pw *PkgEncoder) DumpTo(out0 io.Writer) (fingerprint [8]byte) { + h := md5.New() + out := io.MultiWriter(out0, h) + + writeUint32 := func(x uint32) { + assert(binary.Write(out, binary.LittleEndian, x) == nil) + } + + writeUint32(currentVersion) + + var flags uint32 + if pw.SyncMarkers() { + flags |= flagSyncMarkers + } + writeUint32(flags) + + // Write elemEndsEnds. + var sum uint32 + for _, elems := range &pw.elems { + sum += uint32(len(elems)) + writeUint32(sum) + } + + // Write elemEnds. + sum = 0 + for _, elems := range &pw.elems { + for _, elem := range elems { + sum += uint32(len(elem)) + writeUint32(sum) + } + } + + // Write elemData. + for _, elems := range &pw.elems { + for _, elem := range elems { + _, err := io.WriteString(out, elem) + assert(err == nil) + } + } + + // Write fingerprint. + copy(fingerprint[:], h.Sum(nil)) + _, err := out0.Write(fingerprint[:]) + assert(err == nil) + + return +} + +// StringIdx adds a string value to the strings section, if not +// already present, and returns its index. +func (pw *PkgEncoder) StringIdx(s string) Index { + if idx, ok := pw.stringsIdx[s]; ok { + assert(pw.elems[RelocString][idx] == s) + return idx + } + + idx := Index(len(pw.elems[RelocString])) + pw.elems[RelocString] = append(pw.elems[RelocString], s) + pw.stringsIdx[s] = idx + return idx +} + +// NewEncoder returns an Encoder for a new element within the given +// section, and encodes the given SyncMarker as the start of the +// element bitstream. +func (pw *PkgEncoder) NewEncoder(k RelocKind, marker SyncMarker) Encoder { + e := pw.NewEncoderRaw(k) + e.Sync(marker) + return e +} + +// NewEncoderRaw returns an Encoder for a new element within the given +// section. +// +// Most callers should use NewEncoder instead. +func (pw *PkgEncoder) NewEncoderRaw(k RelocKind) Encoder { + idx := Index(len(pw.elems[k])) + pw.elems[k] = append(pw.elems[k], "") // placeholder + + return Encoder{ + p: pw, + k: k, + Idx: idx, + } +} + +// An Encoder provides methods for encoding an individual element's +// bitstream data. +type Encoder struct { + p *PkgEncoder + + Relocs []RelocEnt + RelocMap map[RelocEnt]uint32 + Data bytes.Buffer // accumulated element bitstream data + + encodingRelocHeader bool + + k RelocKind + Idx Index // index within relocation section +} + +// Flush finalizes the element's bitstream and returns its Index. +func (w *Encoder) Flush() Index { + var sb bytes.Buffer // TODO(mdempsky): strings.Builder after #44505 is resolved + + // Backup the data so we write the relocations at the front. + var tmp bytes.Buffer + io.Copy(&tmp, &w.Data) + + // TODO(mdempsky): Consider writing these out separately so they're + // easier to strip, along with function bodies, so that we can prune + // down to just the data that's relevant to go/types. + if w.encodingRelocHeader { + panic("encodingRelocHeader already true; recursive flush?") + } + w.encodingRelocHeader = true + w.Sync(SyncRelocs) + w.Len(len(w.Relocs)) + for _, rEnt := range w.Relocs { + w.Sync(SyncReloc) + w.Len(int(rEnt.Kind)) + w.Len(int(rEnt.Idx)) + } + + io.Copy(&sb, &w.Data) + io.Copy(&sb, &tmp) + w.p.elems[w.k][w.Idx] = sb.String() + + return w.Idx +} + +func (w *Encoder) checkErr(err error) { + if err != nil { + errorf("unexpected encoding error: %v", err) + } +} + +func (w *Encoder) rawUvarint(x uint64) { + var buf [binary.MaxVarintLen64]byte + n := binary.PutUvarint(buf[:], x) + _, err := w.Data.Write(buf[:n]) + w.checkErr(err) +} + +func (w *Encoder) rawVarint(x int64) { + // Zig-zag encode. + ux := uint64(x) << 1 + if x < 0 { + ux = ^ux + } + + w.rawUvarint(ux) +} + +func (w *Encoder) rawReloc(r RelocKind, idx Index) int { + e := RelocEnt{r, idx} + if w.RelocMap != nil { + if i, ok := w.RelocMap[e]; ok { + return int(i) + } + } else { + w.RelocMap = make(map[RelocEnt]uint32) + } + + i := len(w.Relocs) + w.RelocMap[e] = uint32(i) + w.Relocs = append(w.Relocs, e) + return i +} + +func (w *Encoder) Sync(m SyncMarker) { + if !w.p.SyncMarkers() { + return + } + + // Writing out stack frame string references requires working + // relocations, but writing out the relocations themselves involves + // sync markers. To prevent infinite recursion, we simply trim the + // stack frame for sync markers within the relocation header. + var frames []string + if !w.encodingRelocHeader && w.p.syncFrames > 0 { + pcs := make([]uintptr, w.p.syncFrames) + n := runtime.Callers(2, pcs) + frames = fmtFrames(pcs[:n]...) + } + + // TODO(mdempsky): Save space by writing out stack frames as a + // linked list so we can share common stack frames. + w.rawUvarint(uint64(m)) + w.rawUvarint(uint64(len(frames))) + for _, frame := range frames { + w.rawUvarint(uint64(w.rawReloc(RelocString, w.p.StringIdx(frame)))) + } +} + +// Bool encodes and writes a bool value into the element bitstream, +// and then returns the bool value. +// +// For simple, 2-alternative encodings, the idiomatic way to call Bool +// is something like: +// +// if w.Bool(x != 0) { +// // alternative #1 +// } else { +// // alternative #2 +// } +// +// For multi-alternative encodings, use Code instead. +func (w *Encoder) Bool(b bool) bool { + w.Sync(SyncBool) + var x byte + if b { + x = 1 + } + err := w.Data.WriteByte(x) + w.checkErr(err) + return b +} + +// Int64 encodes and writes an int64 value into the element bitstream. +func (w *Encoder) Int64(x int64) { + w.Sync(SyncInt64) + w.rawVarint(x) +} + +// Uint64 encodes and writes a uint64 value into the element bitstream. +func (w *Encoder) Uint64(x uint64) { + w.Sync(SyncUint64) + w.rawUvarint(x) +} + +// Len encodes and writes a non-negative int value into the element bitstream. +func (w *Encoder) Len(x int) { assert(x >= 0); w.Uint64(uint64(x)) } + +// Int encodes and writes an int value into the element bitstream. +func (w *Encoder) Int(x int) { w.Int64(int64(x)) } + +// Uint encodes and writes a uint value into the element bitstream. +func (w *Encoder) Uint(x uint) { w.Uint64(uint64(x)) } + +// Reloc encodes and writes a relocation for the given (section, +// index) pair into the element bitstream. +// +// Note: Only the index is formally written into the element +// bitstream, so bitstream decoders must know from context which +// section an encoded relocation refers to. +func (w *Encoder) Reloc(r RelocKind, idx Index) { + w.Sync(SyncUseReloc) + w.Len(w.rawReloc(r, idx)) +} + +// Code encodes and writes a Code value into the element bitstream. +func (w *Encoder) Code(c Code) { + w.Sync(c.Marker()) + w.Len(c.Value()) +} + +// String encodes and writes a string value into the element +// bitstream. +// +// Internally, strings are deduplicated by adding them to the strings +// section (if not already present), and then writing a relocation +// into the element bitstream. +func (w *Encoder) String(s string) { + w.Sync(SyncString) + w.Reloc(RelocString, w.p.StringIdx(s)) +} + +// Strings encodes and writes a variable-length slice of strings into +// the element bitstream. +func (w *Encoder) Strings(ss []string) { + w.Len(len(ss)) + for _, s := range ss { + w.String(s) + } +} + +// Value encodes and writes a constant.Value into the element +// bitstream. +func (w *Encoder) Value(val constant.Value) { + w.Sync(SyncValue) + if w.Bool(val.Kind() == constant.Complex) { + w.scalar(constant.Real(val)) + w.scalar(constant.Imag(val)) + } else { + w.scalar(val) + } +} + +func (w *Encoder) scalar(val constant.Value) { + switch v := constant.Val(val).(type) { + default: + errorf("unhandled %v (%v)", val, val.Kind()) + case bool: + w.Code(ValBool) + w.Bool(v) + case string: + w.Code(ValString) + w.String(v) + case int64: + w.Code(ValInt64) + w.Int64(v) + case *big.Int: + w.Code(ValBigInt) + w.bigInt(v) + case *big.Rat: + w.Code(ValBigRat) + w.bigInt(v.Num()) + w.bigInt(v.Denom()) + case *big.Float: + w.Code(ValBigFloat) + w.bigFloat(v) + } +} + +func (w *Encoder) bigInt(v *big.Int) { + b := v.Bytes() + w.String(string(b)) // TODO: More efficient encoding. + w.Bool(v.Sign() < 0) +} + +func (w *Encoder) bigFloat(v *big.Float) { + b := v.Append(nil, 'p', -1) + w.String(string(b)) // TODO: More efficient encoding. +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/flags.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/flags.go new file mode 100644 index 0000000000..654222745f --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/flags.go @@ -0,0 +1,9 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +const ( + flagSyncMarkers = 1 << iota // file format contains sync markers +) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/frames_go1.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/frames_go1.go new file mode 100644 index 0000000000..5294f6a63e --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/frames_go1.go @@ -0,0 +1,21 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build !go1.7 +// +build !go1.7 + +// TODO(mdempsky): Remove after #44505 is resolved + +package pkgbits + +import "runtime" + +func walkFrames(pcs []uintptr, visit frameVisitor) { + for _, pc := range pcs { + fn := runtime.FuncForPC(pc) + file, line := fn.FileLine(pc) + + visit(file, line, fn.Name(), pc-fn.Entry()) + } +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/frames_go17.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/frames_go17.go new file mode 100644 index 0000000000..2324ae7adf --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/frames_go17.go @@ -0,0 +1,28 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build go1.7 +// +build go1.7 + +package pkgbits + +import "runtime" + +// walkFrames calls visit for each call frame represented by pcs. +// +// pcs should be a slice of PCs, as returned by runtime.Callers. +func walkFrames(pcs []uintptr, visit frameVisitor) { + if len(pcs) == 0 { + return + } + + frames := runtime.CallersFrames(pcs) + for { + frame, more := frames.Next() + visit(frame.File, frame.Line, frame.Function, frame.PC-frame.Entry) + if !more { + return + } + } +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/reloc.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/reloc.go new file mode 100644 index 0000000000..fcdfb97ca9 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/reloc.go @@ -0,0 +1,42 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +// A RelocKind indicates a particular section within a unified IR export. +type RelocKind int32 + +// An Index represents a bitstream element index within a particular +// section. +type Index int32 + +// A relocEnt (relocation entry) is an entry in an element's local +// reference table. +// +// TODO(mdempsky): Rename this too. +type RelocEnt struct { + Kind RelocKind + Idx Index +} + +// Reserved indices within the meta relocation section. +const ( + PublicRootIdx Index = 0 + PrivateRootIdx Index = 1 +) + +const ( + RelocString RelocKind = iota + RelocMeta + RelocPosBase + RelocPkg + RelocName + RelocType + RelocObj + RelocObjExt + RelocObjDict + RelocBody + + numRelocs = iota +) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/support.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/support.go new file mode 100644 index 0000000000..ad26d3b28c --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/support.go @@ -0,0 +1,17 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +import "fmt" + +func assert(b bool) { + if !b { + panic("assertion failed") + } +} + +func errorf(format string, args ...interface{}) { + panic(fmt.Errorf(format, args...)) +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/sync.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/sync.go new file mode 100644 index 0000000000..5bd51ef717 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/sync.go @@ -0,0 +1,113 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkgbits + +import ( + "fmt" + "strings" +) + +// fmtFrames formats a backtrace for reporting reader/writer desyncs. +func fmtFrames(pcs ...uintptr) []string { + res := make([]string, 0, len(pcs)) + walkFrames(pcs, func(file string, line int, name string, offset uintptr) { + // Trim package from function name. It's just redundant noise. + name = strings.TrimPrefix(name, "cmd/compile/internal/noder.") + + res = append(res, fmt.Sprintf("%s:%v: %s +0x%v", file, line, name, offset)) + }) + return res +} + +type frameVisitor func(file string, line int, name string, offset uintptr) + +// SyncMarker is an enum type that represents markers that may be +// written to export data to ensure the reader and writer stay +// synchronized. +type SyncMarker int + +//go:generate stringer -type=SyncMarker -trimprefix=Sync + +const ( + _ SyncMarker = iota + + // Public markers (known to go/types importers). + + // Low-level coding markers. + SyncEOF + SyncBool + SyncInt64 + SyncUint64 + SyncString + SyncValue + SyncVal + SyncRelocs + SyncReloc + SyncUseReloc + + // Higher-level object and type markers. + SyncPublic + SyncPos + SyncPosBase + SyncObject + SyncObject1 + SyncPkg + SyncPkgDef + SyncMethod + SyncType + SyncTypeIdx + SyncTypeParamNames + SyncSignature + SyncParams + SyncParam + SyncCodeObj + SyncSym + SyncLocalIdent + SyncSelector + + // Private markers (only known to cmd/compile). + SyncPrivate + + SyncFuncExt + SyncVarExt + SyncTypeExt + SyncPragma + + SyncExprList + SyncExprs + SyncExpr + SyncExprType + SyncAssign + SyncOp + SyncFuncLit + SyncCompLit + + SyncDecl + SyncFuncBody + SyncOpenScope + SyncCloseScope + SyncCloseAnotherScope + SyncDeclNames + SyncDeclName + + SyncStmts + SyncBlockStmt + SyncIfStmt + SyncForStmt + SyncSwitchStmt + SyncRangeStmt + SyncCaseClause + SyncCommClause + SyncSelectStmt + SyncDecls + SyncLabeledStmt + SyncUseObjLocal + SyncAddLocal + SyncLinkname + SyncStmt1 + SyncStmtsEnd + SyncLabel + SyncOptLabel +) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/syncmarker_string.go b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/syncmarker_string.go new file mode 100644 index 0000000000..4a5b0ca5f2 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/pkgbits/syncmarker_string.go @@ -0,0 +1,89 @@ +// Code generated by "stringer -type=SyncMarker -trimprefix=Sync"; DO NOT EDIT. + +package pkgbits + +import "strconv" + +func _() { + // An "invalid array index" compiler error signifies that the constant values have changed. + // Re-run the stringer command to generate them again. + var x [1]struct{} + _ = x[SyncEOF-1] + _ = x[SyncBool-2] + _ = x[SyncInt64-3] + _ = x[SyncUint64-4] + _ = x[SyncString-5] + _ = x[SyncValue-6] + _ = x[SyncVal-7] + _ = x[SyncRelocs-8] + _ = x[SyncReloc-9] + _ = x[SyncUseReloc-10] + _ = x[SyncPublic-11] + _ = x[SyncPos-12] + _ = x[SyncPosBase-13] + _ = x[SyncObject-14] + _ = x[SyncObject1-15] + _ = x[SyncPkg-16] + _ = x[SyncPkgDef-17] + _ = x[SyncMethod-18] + _ = x[SyncType-19] + _ = x[SyncTypeIdx-20] + _ = x[SyncTypeParamNames-21] + _ = x[SyncSignature-22] + _ = x[SyncParams-23] + _ = x[SyncParam-24] + _ = x[SyncCodeObj-25] + _ = x[SyncSym-26] + _ = x[SyncLocalIdent-27] + _ = x[SyncSelector-28] + _ = x[SyncPrivate-29] + _ = x[SyncFuncExt-30] + _ = x[SyncVarExt-31] + _ = x[SyncTypeExt-32] + _ = x[SyncPragma-33] + _ = x[SyncExprList-34] + _ = x[SyncExprs-35] + _ = x[SyncExpr-36] + _ = x[SyncExprType-37] + _ = x[SyncAssign-38] + _ = x[SyncOp-39] + _ = x[SyncFuncLit-40] + _ = x[SyncCompLit-41] + _ = x[SyncDecl-42] + _ = x[SyncFuncBody-43] + _ = x[SyncOpenScope-44] + _ = x[SyncCloseScope-45] + _ = x[SyncCloseAnotherScope-46] + _ = x[SyncDeclNames-47] + _ = x[SyncDeclName-48] + _ = x[SyncStmts-49] + _ = x[SyncBlockStmt-50] + _ = x[SyncIfStmt-51] + _ = x[SyncForStmt-52] + _ = x[SyncSwitchStmt-53] + _ = x[SyncRangeStmt-54] + _ = x[SyncCaseClause-55] + _ = x[SyncCommClause-56] + _ = x[SyncSelectStmt-57] + _ = x[SyncDecls-58] + _ = x[SyncLabeledStmt-59] + _ = x[SyncUseObjLocal-60] + _ = x[SyncAddLocal-61] + _ = x[SyncLinkname-62] + _ = x[SyncStmt1-63] + _ = x[SyncStmtsEnd-64] + _ = x[SyncLabel-65] + _ = x[SyncOptLabel-66] +} + +const _SyncMarker_name = "EOFBoolInt64Uint64StringValueValRelocsRelocUseRelocPublicPosPosBaseObjectObject1PkgPkgDefMethodTypeTypeIdxTypeParamNamesSignatureParamsParamCodeObjSymLocalIdentSelectorPrivateFuncExtVarExtTypeExtPragmaExprListExprsExprExprTypeAssignOpFuncLitCompLitDeclFuncBodyOpenScopeCloseScopeCloseAnotherScopeDeclNamesDeclNameStmtsBlockStmtIfStmtForStmtSwitchStmtRangeStmtCaseClauseCommClauseSelectStmtDeclsLabeledStmtUseObjLocalAddLocalLinknameStmt1StmtsEndLabelOptLabel" + +var _SyncMarker_index = [...]uint16{0, 3, 7, 12, 18, 24, 29, 32, 38, 43, 51, 57, 60, 67, 73, 80, 83, 89, 95, 99, 106, 120, 129, 135, 140, 147, 150, 160, 168, 175, 182, 188, 195, 201, 209, 214, 218, 226, 232, 234, 241, 248, 252, 260, 269, 279, 296, 305, 313, 318, 327, 333, 340, 350, 359, 369, 379, 389, 394, 405, 416, 424, 432, 437, 445, 450, 458} + +func (i SyncMarker) String() string { + i -= 1 + if i < 0 || i >= SyncMarker(len(_SyncMarker_index)-1) { + return "SyncMarker(" + strconv.FormatInt(int64(i+1), 10) + ")" + } + return _SyncMarker_name[_SyncMarker_index[i]:_SyncMarker_index[i+1]] +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/tokeninternal/tokeninternal.go b/tools/metrics/vendor/golang.org/x/tools/internal/tokeninternal/tokeninternal.go new file mode 100644 index 0000000000..a3fb2d4f29 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/tokeninternal/tokeninternal.go @@ -0,0 +1,59 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// package tokeninternal provides access to some internal features of the token +// package. +package tokeninternal + +import ( + "go/token" + "sync" + "unsafe" +) + +// GetLines returns the table of line-start offsets from a token.File. +func GetLines(file *token.File) []int { + // token.File has a Lines method on Go 1.21 and later. + if file, ok := (interface{})(file).(interface{ Lines() []int }); ok { + return file.Lines() + } + + // This declaration must match that of token.File. + // This creates a risk of dependency skew. + // For now we check that the size of the two + // declarations is the same, on the (fragile) assumption + // that future changes would add fields. + type tokenFile119 struct { + _ string + _ int + _ int + mu sync.Mutex // we're not complete monsters + lines []int + _ []struct{} + } + type tokenFile118 struct { + _ *token.FileSet // deleted in go1.19 + tokenFile119 + } + + type uP = unsafe.Pointer + switch unsafe.Sizeof(*file) { + case unsafe.Sizeof(tokenFile118{}): + var ptr *tokenFile118 + *(*uP)(uP(&ptr)) = uP(file) + ptr.mu.Lock() + defer ptr.mu.Unlock() + return ptr.lines + + case unsafe.Sizeof(tokenFile119{}): + var ptr *tokenFile119 + *(*uP)(uP(&ptr)) = uP(file) + ptr.mu.Lock() + defer ptr.mu.Unlock() + return ptr.lines + + default: + panic("unexpected token.File size") + } +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/common.go b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/common.go index ab6b30b83e..25a1426d30 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/common.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/common.go @@ -16,11 +16,10 @@ // Additionally, this package contains common utilities for working with the // new generic constructs, to supplement the standard library APIs. Notably, // the StructuralTerms API computes a minimal representation of the structural -// restrictions on a type parameter. In the future, this API may be available -// from go/types. +// restrictions on a type parameter. // -// See the example/README.md for a more detailed guide on how to update tools -// to support generics. +// An external version of these APIs is available in the +// golang.org/x/exp/typeparams module. package typeparams import ( @@ -121,15 +120,15 @@ func OriginMethod(fn *types.Func) *types.Func { // // For example, consider the following type declarations: // -// type Interface[T any] interface { -// Accept(T) -// } +// type Interface[T any] interface { +// Accept(T) +// } // -// type Container[T any] struct { -// Element T -// } +// type Container[T any] struct { +// Element T +// } // -// func (c Container[T]) Accept(t T) { c.Element = t } +// func (c Container[T]) Accept(t T) { c.Element = t } // // In this case, GenericAssignableTo reports that instantiations of Container // are assignable to the corresponding instantiation of Interface. diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/coretype.go b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/coretype.go new file mode 100644 index 0000000000..993135ec90 --- /dev/null +++ b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/coretype.go @@ -0,0 +1,122 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package typeparams + +import ( + "go/types" +) + +// CoreType returns the core type of T or nil if T does not have a core type. +// +// See https://go.dev/ref/spec#Core_types for the definition of a core type. +func CoreType(T types.Type) types.Type { + U := T.Underlying() + if _, ok := U.(*types.Interface); !ok { + return U // for non-interface types, + } + + terms, err := _NormalTerms(U) + if len(terms) == 0 || err != nil { + // len(terms) -> empty type set of interface. + // err != nil => U is invalid, exceeds complexity bounds, or has an empty type set. + return nil // no core type. + } + + U = terms[0].Type().Underlying() + var identical int // i in [0,identical) => Identical(U, terms[i].Type().Underlying()) + for identical = 1; identical < len(terms); identical++ { + if !types.Identical(U, terms[identical].Type().Underlying()) { + break + } + } + + if identical == len(terms) { + // https://go.dev/ref/spec#Core_types + // "There is a single type U which is the underlying type of all types in the type set of T" + return U + } + ch, ok := U.(*types.Chan) + if !ok { + return nil // no core type as identical < len(terms) and U is not a channel. + } + // https://go.dev/ref/spec#Core_types + // "the type chan E if T contains only bidirectional channels, or the type chan<- E or + // <-chan E depending on the direction of the directional channels present." + for chans := identical; chans < len(terms); chans++ { + curr, ok := terms[chans].Type().Underlying().(*types.Chan) + if !ok { + return nil + } + if !types.Identical(ch.Elem(), curr.Elem()) { + return nil // channel elements are not identical. + } + if ch.Dir() == types.SendRecv { + // ch is bidirectional. We can safely always use curr's direction. + ch = curr + } else if curr.Dir() != types.SendRecv && ch.Dir() != curr.Dir() { + // ch and curr are not bidirectional and not the same direction. + return nil + } + } + return ch +} + +// _NormalTerms returns a slice of terms representing the normalized structural +// type restrictions of a type, if any. +// +// For all types other than *types.TypeParam, *types.Interface, and +// *types.Union, this is just a single term with Tilde() == false and +// Type() == typ. For *types.TypeParam, *types.Interface, and *types.Union, see +// below. +// +// Structural type restrictions of a type parameter are created via +// non-interface types embedded in its constraint interface (directly, or via a +// chain of interface embeddings). For example, in the declaration type +// T[P interface{~int; m()}] int the structural restriction of the type +// parameter P is ~int. +// +// With interface embedding and unions, the specification of structural type +// restrictions may be arbitrarily complex. For example, consider the +// following: +// +// type A interface{ ~string|~[]byte } +// +// type B interface{ int|string } +// +// type C interface { ~string|~int } +// +// type T[P interface{ A|B; C }] int +// +// In this example, the structural type restriction of P is ~string|int: A|B +// expands to ~string|~[]byte|int|string, which reduces to ~string|~[]byte|int, +// which when intersected with C (~string|~int) yields ~string|int. +// +// _NormalTerms computes these expansions and reductions, producing a +// "normalized" form of the embeddings. A structural restriction is normalized +// if it is a single union containing no interface terms, and is minimal in the +// sense that removing any term changes the set of types satisfying the +// constraint. It is left as a proof for the reader that, modulo sorting, there +// is exactly one such normalized form. +// +// Because the minimal representation always takes this form, _NormalTerms +// returns a slice of tilde terms corresponding to the terms of the union in +// the normalized structural restriction. An error is returned if the type is +// invalid, exceeds complexity bounds, or has an empty type set. In the latter +// case, _NormalTerms returns ErrEmptyTypeSet. +// +// _NormalTerms makes no guarantees about the order of terms, except that it +// is deterministic. +func _NormalTerms(typ types.Type) ([]*Term, error) { + switch typ := typ.(type) { + case *TypeParam: + return StructuralTerms(typ) + case *Union: + return UnionTermSet(typ) + case *types.Interface: + return InterfaceTermSet(typ) + default: + return []*Term{NewTerm(false, typ)}, nil + } +} diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/normalize.go b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/normalize.go index 090f142a5f..9c631b6512 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/normalize.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/normalize.go @@ -24,20 +24,22 @@ var ErrEmptyTypeSet = errors.New("empty type set") // Structural type restrictions of a type parameter are created via // non-interface types embedded in its constraint interface (directly, or via a // chain of interface embeddings). For example, in the declaration -// type T[P interface{~int; m()}] int +// +// type T[P interface{~int; m()}] int +// // the structural restriction of the type parameter P is ~int. // // With interface embedding and unions, the specification of structural type // restrictions may be arbitrarily complex. For example, consider the // following: // -// type A interface{ ~string|~[]byte } +// type A interface{ ~string|~[]byte } // -// type B interface{ int|string } +// type B interface{ int|string } // -// type C interface { ~string|~int } +// type C interface { ~string|~int } // -// type T[P interface{ A|B; C }] int +// type T[P interface{ A|B; C }] int // // In this example, the structural type restriction of P is ~string|int: A|B // expands to ~string|~[]byte|int|string, which reduces to ~string|~[]byte|int, diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/termlist.go b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/termlist.go index 10857d504c..933106a23d 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/termlist.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/typeparams/termlist.go @@ -97,15 +97,6 @@ func (xl termlist) norm() termlist { return rl } -// If the type set represented by xl is specified by a single (non-𝓤) term, -// structuralType returns that type. Otherwise it returns nil. -func (xl termlist) structuralType() types.Type { - if nl := xl.norm(); len(nl) == 1 { - return nl[0].typ // if nl.isAll() then typ is nil, which is ok - } - return nil -} - // union returns the union xl ∪ yl. func (xl termlist) union(yl termlist) termlist { return append(xl, yl...).norm() diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode.go b/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode.go index d38ee3c27c..07484073a5 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode.go @@ -30,6 +30,12 @@ type ErrorCode int // convention that "bad" implies a problem with syntax, and "invalid" implies a // problem with types. +const ( + // InvalidSyntaxTree occurs if an invalid syntax tree is provided + // to the type checker. It should never happen. + InvalidSyntaxTree ErrorCode = -1 +) + const ( _ ErrorCode = iota @@ -153,12 +159,12 @@ const ( /* decls > var (+ other variable assignment codes) */ - // UntypedNil occurs when the predeclared (untyped) value nil is used to + // UntypedNilUse occurs when the predeclared (untyped) value nil is used to // initialize a variable declared without an explicit type. // // Example: // var x = nil - UntypedNil + UntypedNilUse // WrongAssignCount occurs when the number of values on the right-hand side // of an assignment or or initialization expression does not match the number @@ -1523,4 +1529,32 @@ const ( // Example: // type T[P any] struct{ *P } MisplacedTypeParam + + // InvalidUnsafeSliceData occurs when unsafe.SliceData is called with + // an argument that is not of slice type. It also occurs if it is used + // in a package compiled for a language version before go1.20. + // + // Example: + // import "unsafe" + // + // var x int + // var _ = unsafe.SliceData(x) + InvalidUnsafeSliceData + + // InvalidUnsafeString occurs when unsafe.String is called with + // a length argument that is not of integer type, negative, or + // out of bounds. It also occurs if it is used in a package + // compiled for a language version before go1.20. + // + // Example: + // import "unsafe" + // + // var b [10]byte + // var _ = unsafe.String(&b[0], -1) + InvalidUnsafeString + + // InvalidUnsafeStringData occurs if it is used in a package + // compiled for a language version before go1.20. + _ // not used anymore + ) diff --git a/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode_string.go b/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode_string.go index de90e9515a..15ecf7c5de 100644 --- a/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode_string.go +++ b/tools/metrics/vendor/golang.org/x/tools/internal/typesinternal/errorcode_string.go @@ -8,6 +8,7 @@ func _() { // An "invalid array index" compiler error signifies that the constant values have changed. // Re-run the stringer command to generate them again. var x [1]struct{} + _ = x[InvalidSyntaxTree - -1] _ = x[Test-1] _ = x[BlankPkgName-2] _ = x[MismatchedPkgName-3] @@ -23,7 +24,7 @@ func _() { _ = x[InvalidConstInit-13] _ = x[InvalidConstVal-14] _ = x[InvalidConstType-15] - _ = x[UntypedNil-16] + _ = x[UntypedNilUse-16] _ = x[WrongAssignCount-17] _ = x[UnassignableOperand-18] _ = x[NoNewVar-19] @@ -152,16 +153,27 @@ func _() { _ = x[MisplacedConstraintIface-142] _ = x[InvalidMethodTypeParams-143] _ = x[MisplacedTypeParam-144] + _ = x[InvalidUnsafeSliceData-145] + _ = x[InvalidUnsafeString-146] } -const _ErrorCode_name = "TestBlankPkgNameMismatchedPkgNameInvalidPkgUseBadImportPathBrokenImportImportCRenamedUnusedImportInvalidInitCycleDuplicateDeclInvalidDeclCycleInvalidTypeCycleInvalidConstInitInvalidConstValInvalidConstTypeUntypedNilWrongAssignCountUnassignableOperandNoNewVarMultiValAssignOpInvalidIfaceAssignInvalidChanAssignIncompatibleAssignUnaddressableFieldAssignNotATypeInvalidArrayLenBlankIfaceMethodIncomparableMapKeyInvalidIfaceEmbedInvalidPtrEmbedBadRecvInvalidRecvDuplicateFieldAndMethodDuplicateMethodInvalidBlankInvalidIotaMissingInitBodyInvalidInitSigInvalidInitDeclInvalidMainDeclTooManyValuesNotAnExprTruncatedFloatNumericOverflowUndefinedOpMismatchedTypesDivByZeroNonNumericIncDecUnaddressableOperandInvalidIndirectionNonIndexableOperandInvalidIndexSwappedSliceIndicesNonSliceableOperandInvalidSliceExprInvalidShiftCountInvalidShiftOperandInvalidReceiveInvalidSendDuplicateLitKeyMissingLitKeyInvalidLitIndexOversizeArrayLitMixedStructLitInvalidStructLitMissingLitFieldDuplicateLitFieldUnexportedLitFieldInvalidLitFieldUntypedLitInvalidLitAmbiguousSelectorUndeclaredImportedNameUnexportedNameUndeclaredNameMissingFieldOrMethodBadDotDotDotSyntaxNonVariadicDotDotDotMisplacedDotDotDotInvalidDotDotDotOperandInvalidDotDotDotUncalledBuiltinInvalidAppendInvalidCapInvalidCloseInvalidCopyInvalidComplexInvalidDeleteInvalidImagInvalidLenSwappedMakeArgsInvalidMakeInvalidRealInvalidAssertImpossibleAssertInvalidConversionInvalidUntypedConversionBadOffsetofSyntaxInvalidOffsetofUnusedExprUnusedVarMissingReturnWrongResultCountOutOfScopeResultInvalidCondInvalidPostDeclInvalidChanRangeInvalidIterVarInvalidRangeExprMisplacedBreakMisplacedContinueMisplacedFallthroughDuplicateCaseDuplicateDefaultBadTypeKeywordInvalidTypeSwitchInvalidExprSwitchInvalidSelectCaseUndeclaredLabelDuplicateLabelMisplacedLabelUnusedLabelJumpOverDeclJumpIntoBlockInvalidMethodExprWrongArgCountInvalidCallUnusedResultsInvalidDeferInvalidGoBadDeclRepeatedDeclInvalidUnsafeAddInvalidUnsafeSliceUnsupportedFeatureNotAGenericTypeWrongTypeArgCountCannotInferTypeArgsInvalidTypeArgInvalidInstanceCycleInvalidUnionMisplacedConstraintIfaceInvalidMethodTypeParamsMisplacedTypeParam" +const ( + _ErrorCode_name_0 = "InvalidSyntaxTree" + _ErrorCode_name_1 = "TestBlankPkgNameMismatchedPkgNameInvalidPkgUseBadImportPathBrokenImportImportCRenamedUnusedImportInvalidInitCycleDuplicateDeclInvalidDeclCycleInvalidTypeCycleInvalidConstInitInvalidConstValInvalidConstTypeUntypedNilUseWrongAssignCountUnassignableOperandNoNewVarMultiValAssignOpInvalidIfaceAssignInvalidChanAssignIncompatibleAssignUnaddressableFieldAssignNotATypeInvalidArrayLenBlankIfaceMethodIncomparableMapKeyInvalidIfaceEmbedInvalidPtrEmbedBadRecvInvalidRecvDuplicateFieldAndMethodDuplicateMethodInvalidBlankInvalidIotaMissingInitBodyInvalidInitSigInvalidInitDeclInvalidMainDeclTooManyValuesNotAnExprTruncatedFloatNumericOverflowUndefinedOpMismatchedTypesDivByZeroNonNumericIncDecUnaddressableOperandInvalidIndirectionNonIndexableOperandInvalidIndexSwappedSliceIndicesNonSliceableOperandInvalidSliceExprInvalidShiftCountInvalidShiftOperandInvalidReceiveInvalidSendDuplicateLitKeyMissingLitKeyInvalidLitIndexOversizeArrayLitMixedStructLitInvalidStructLitMissingLitFieldDuplicateLitFieldUnexportedLitFieldInvalidLitFieldUntypedLitInvalidLitAmbiguousSelectorUndeclaredImportedNameUnexportedNameUndeclaredNameMissingFieldOrMethodBadDotDotDotSyntaxNonVariadicDotDotDotMisplacedDotDotDotInvalidDotDotDotOperandInvalidDotDotDotUncalledBuiltinInvalidAppendInvalidCapInvalidCloseInvalidCopyInvalidComplexInvalidDeleteInvalidImagInvalidLenSwappedMakeArgsInvalidMakeInvalidRealInvalidAssertImpossibleAssertInvalidConversionInvalidUntypedConversionBadOffsetofSyntaxInvalidOffsetofUnusedExprUnusedVarMissingReturnWrongResultCountOutOfScopeResultInvalidCondInvalidPostDeclInvalidChanRangeInvalidIterVarInvalidRangeExprMisplacedBreakMisplacedContinueMisplacedFallthroughDuplicateCaseDuplicateDefaultBadTypeKeywordInvalidTypeSwitchInvalidExprSwitchInvalidSelectCaseUndeclaredLabelDuplicateLabelMisplacedLabelUnusedLabelJumpOverDeclJumpIntoBlockInvalidMethodExprWrongArgCountInvalidCallUnusedResultsInvalidDeferInvalidGoBadDeclRepeatedDeclInvalidUnsafeAddInvalidUnsafeSliceUnsupportedFeatureNotAGenericTypeWrongTypeArgCountCannotInferTypeArgsInvalidTypeArgInvalidInstanceCycleInvalidUnionMisplacedConstraintIfaceInvalidMethodTypeParamsMisplacedTypeParamInvalidUnsafeSliceDataInvalidUnsafeString" +) -var _ErrorCode_index = [...]uint16{0, 4, 16, 33, 46, 59, 71, 85, 97, 113, 126, 142, 158, 174, 189, 205, 215, 231, 250, 258, 274, 292, 309, 327, 351, 359, 374, 390, 408, 425, 440, 447, 458, 481, 496, 508, 519, 534, 548, 563, 578, 591, 600, 614, 629, 640, 655, 664, 680, 700, 718, 737, 749, 768, 787, 803, 820, 839, 853, 864, 879, 892, 907, 923, 937, 953, 968, 985, 1003, 1018, 1028, 1038, 1055, 1077, 1091, 1105, 1125, 1143, 1163, 1181, 1204, 1220, 1235, 1248, 1258, 1270, 1281, 1295, 1308, 1319, 1329, 1344, 1355, 1366, 1379, 1395, 1412, 1436, 1453, 1468, 1478, 1487, 1500, 1516, 1532, 1543, 1558, 1574, 1588, 1604, 1618, 1635, 1655, 1668, 1684, 1698, 1715, 1732, 1749, 1764, 1778, 1792, 1803, 1815, 1828, 1845, 1858, 1869, 1882, 1894, 1903, 1910, 1922, 1938, 1956, 1974, 1989, 2006, 2025, 2039, 2059, 2071, 2095, 2118, 2136} +var ( + _ErrorCode_index_1 = [...]uint16{0, 4, 16, 33, 46, 59, 71, 85, 97, 113, 126, 142, 158, 174, 189, 205, 218, 234, 253, 261, 277, 295, 312, 330, 354, 362, 377, 393, 411, 428, 443, 450, 461, 484, 499, 511, 522, 537, 551, 566, 581, 594, 603, 617, 632, 643, 658, 667, 683, 703, 721, 740, 752, 771, 790, 806, 823, 842, 856, 867, 882, 895, 910, 926, 940, 956, 971, 988, 1006, 1021, 1031, 1041, 1058, 1080, 1094, 1108, 1128, 1146, 1166, 1184, 1207, 1223, 1238, 1251, 1261, 1273, 1284, 1298, 1311, 1322, 1332, 1347, 1358, 1369, 1382, 1398, 1415, 1439, 1456, 1471, 1481, 1490, 1503, 1519, 1535, 1546, 1561, 1577, 1591, 1607, 1621, 1638, 1658, 1671, 1687, 1701, 1718, 1735, 1752, 1767, 1781, 1795, 1806, 1818, 1831, 1848, 1861, 1872, 1885, 1897, 1906, 1913, 1925, 1941, 1959, 1977, 1992, 2009, 2028, 2042, 2062, 2074, 2098, 2121, 2139, 2161, 2180} +) func (i ErrorCode) String() string { - i -= 1 - if i < 0 || i >= ErrorCode(len(_ErrorCode_index)-1) { - return "ErrorCode(" + strconv.FormatInt(int64(i+1), 10) + ")" + switch { + case i == -1: + return _ErrorCode_name_0 + case 1 <= i && i <= 146: + i -= 1 + return _ErrorCode_name_1[_ErrorCode_index_1[i]:_ErrorCode_index_1[i+1]] + default: + return "ErrorCode(" + strconv.FormatInt(int64(i), 10) + ")" } - return _ErrorCode_name[_ErrorCode_index[i]:_ErrorCode_index[i+1]] } diff --git a/tools/metrics/vendor/golang.org/x/xerrors/LICENSE b/tools/metrics/vendor/golang.org/x/xerrors/LICENSE deleted file mode 100644 index e4a47e17f1..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright (c) 2019 The Go Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/tools/metrics/vendor/golang.org/x/xerrors/PATENTS b/tools/metrics/vendor/golang.org/x/xerrors/PATENTS deleted file mode 100644 index 733099041f..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/PATENTS +++ /dev/null @@ -1,22 +0,0 @@ -Additional IP Rights Grant (Patents) - -"This implementation" means the copyrightable works distributed by -Google as part of the Go project. - -Google hereby grants to You a perpetual, worldwide, non-exclusive, -no-charge, royalty-free, irrevocable (except as stated in this section) -patent license to make, have made, use, offer to sell, sell, import, -transfer and otherwise run, modify and propagate the contents of this -implementation of Go, where such license applies only to those patent -claims, both currently owned or controlled by Google and acquired in -the future, licensable by Google that are necessarily infringed by this -implementation of Go. This grant does not include claims that would be -infringed only as a consequence of further modification of this -implementation. If you or your agent or exclusive licensee institute or -order or agree to the institution of patent litigation against any -entity (including a cross-claim or counterclaim in a lawsuit) alleging -that this implementation of Go or any code incorporated within this -implementation of Go constitutes direct or contributory patent -infringement, or inducement of patent infringement, then any patent -rights granted to you under this License for this implementation of Go -shall terminate as of the date such litigation is filed. diff --git a/tools/metrics/vendor/golang.org/x/xerrors/README b/tools/metrics/vendor/golang.org/x/xerrors/README deleted file mode 100644 index aac7867a56..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/README +++ /dev/null @@ -1,2 +0,0 @@ -This repository holds the transition packages for the new Go 1.13 error values. -See golang.org/design/29934-error-values. diff --git a/tools/metrics/vendor/golang.org/x/xerrors/adaptor.go b/tools/metrics/vendor/golang.org/x/xerrors/adaptor.go deleted file mode 100644 index 4317f24833..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/adaptor.go +++ /dev/null @@ -1,193 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xerrors - -import ( - "bytes" - "fmt" - "io" - "reflect" - "strconv" -) - -// FormatError calls the FormatError method of f with an errors.Printer -// configured according to s and verb, and writes the result to s. -func FormatError(f Formatter, s fmt.State, verb rune) { - // Assuming this function is only called from the Format method, and given - // that FormatError takes precedence over Format, it cannot be called from - // any package that supports errors.Formatter. It is therefore safe to - // disregard that State may be a specific printer implementation and use one - // of our choice instead. - - // limitations: does not support printing error as Go struct. - - var ( - sep = " " // separator before next error - p = &state{State: s} - direct = true - ) - - var err error = f - - switch verb { - // Note that this switch must match the preference order - // for ordinary string printing (%#v before %+v, and so on). - - case 'v': - if s.Flag('#') { - if stringer, ok := err.(fmt.GoStringer); ok { - io.WriteString(&p.buf, stringer.GoString()) - goto exit - } - // proceed as if it were %v - } else if s.Flag('+') { - p.printDetail = true - sep = "\n - " - } - case 's': - case 'q', 'x', 'X': - // Use an intermediate buffer in the rare cases that precision, - // truncation, or one of the alternative verbs (q, x, and X) are - // specified. - direct = false - - default: - p.buf.WriteString("%!") - p.buf.WriteRune(verb) - p.buf.WriteByte('(') - switch { - case err != nil: - p.buf.WriteString(reflect.TypeOf(f).String()) - default: - p.buf.WriteString("") - } - p.buf.WriteByte(')') - io.Copy(s, &p.buf) - return - } - -loop: - for { - switch v := err.(type) { - case Formatter: - err = v.FormatError((*printer)(p)) - case fmt.Formatter: - v.Format(p, 'v') - break loop - default: - io.WriteString(&p.buf, v.Error()) - break loop - } - if err == nil { - break - } - if p.needColon || !p.printDetail { - p.buf.WriteByte(':') - p.needColon = false - } - p.buf.WriteString(sep) - p.inDetail = false - p.needNewline = false - } - -exit: - width, okW := s.Width() - prec, okP := s.Precision() - - if !direct || (okW && width > 0) || okP { - // Construct format string from State s. - format := []byte{'%'} - if s.Flag('-') { - format = append(format, '-') - } - if s.Flag('+') { - format = append(format, '+') - } - if s.Flag(' ') { - format = append(format, ' ') - } - if okW { - format = strconv.AppendInt(format, int64(width), 10) - } - if okP { - format = append(format, '.') - format = strconv.AppendInt(format, int64(prec), 10) - } - format = append(format, string(verb)...) - fmt.Fprintf(s, string(format), p.buf.String()) - } else { - io.Copy(s, &p.buf) - } -} - -var detailSep = []byte("\n ") - -// state tracks error printing state. It implements fmt.State. -type state struct { - fmt.State - buf bytes.Buffer - - printDetail bool - inDetail bool - needColon bool - needNewline bool -} - -func (s *state) Write(b []byte) (n int, err error) { - if s.printDetail { - if len(b) == 0 { - return 0, nil - } - if s.inDetail && s.needColon { - s.needNewline = true - if b[0] == '\n' { - b = b[1:] - } - } - k := 0 - for i, c := range b { - if s.needNewline { - if s.inDetail && s.needColon { - s.buf.WriteByte(':') - s.needColon = false - } - s.buf.Write(detailSep) - s.needNewline = false - } - if c == '\n' { - s.buf.Write(b[k:i]) - k = i + 1 - s.needNewline = true - } - } - s.buf.Write(b[k:]) - if !s.inDetail { - s.needColon = true - } - } else if !s.inDetail { - s.buf.Write(b) - } - return len(b), nil -} - -// printer wraps a state to implement an xerrors.Printer. -type printer state - -func (s *printer) Print(args ...interface{}) { - if !s.inDetail || s.printDetail { - fmt.Fprint((*state)(s), args...) - } -} - -func (s *printer) Printf(format string, args ...interface{}) { - if !s.inDetail || s.printDetail { - fmt.Fprintf((*state)(s), format, args...) - } -} - -func (s *printer) Detail() bool { - s.inDetail = true - return s.printDetail -} diff --git a/tools/metrics/vendor/golang.org/x/xerrors/codereview.cfg b/tools/metrics/vendor/golang.org/x/xerrors/codereview.cfg deleted file mode 100644 index 3f8b14b64e..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/codereview.cfg +++ /dev/null @@ -1 +0,0 @@ -issuerepo: golang/go diff --git a/tools/metrics/vendor/golang.org/x/xerrors/doc.go b/tools/metrics/vendor/golang.org/x/xerrors/doc.go deleted file mode 100644 index eef99d9d54..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/doc.go +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package xerrors implements functions to manipulate errors. -// -// This package is based on the Go 2 proposal for error values: -// https://golang.org/design/29934-error-values -// -// These functions were incorporated into the standard library's errors package -// in Go 1.13: -// - Is -// - As -// - Unwrap -// -// Also, Errorf's %w verb was incorporated into fmt.Errorf. -// -// Use this package to get equivalent behavior in all supported Go versions. -// -// No other features of this package were included in Go 1.13, and at present -// there are no plans to include any of them. -package xerrors // import "golang.org/x/xerrors" diff --git a/tools/metrics/vendor/golang.org/x/xerrors/errors.go b/tools/metrics/vendor/golang.org/x/xerrors/errors.go deleted file mode 100644 index e88d3772d8..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/errors.go +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xerrors - -import "fmt" - -// errorString is a trivial implementation of error. -type errorString struct { - s string - frame Frame -} - -// New returns an error that formats as the given text. -// -// The returned error contains a Frame set to the caller's location and -// implements Formatter to show this information when printed with details. -func New(text string) error { - return &errorString{text, Caller(1)} -} - -func (e *errorString) Error() string { - return e.s -} - -func (e *errorString) Format(s fmt.State, v rune) { FormatError(e, s, v) } - -func (e *errorString) FormatError(p Printer) (next error) { - p.Print(e.s) - e.frame.Format(p) - return nil -} diff --git a/tools/metrics/vendor/golang.org/x/xerrors/fmt.go b/tools/metrics/vendor/golang.org/x/xerrors/fmt.go deleted file mode 100644 index 829862ddf6..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/fmt.go +++ /dev/null @@ -1,187 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xerrors - -import ( - "fmt" - "strings" - "unicode" - "unicode/utf8" - - "golang.org/x/xerrors/internal" -) - -const percentBangString = "%!" - -// Errorf formats according to a format specifier and returns the string as a -// value that satisfies error. -// -// The returned error includes the file and line number of the caller when -// formatted with additional detail enabled. If the last argument is an error -// the returned error's Format method will return it if the format string ends -// with ": %s", ": %v", or ": %w". If the last argument is an error and the -// format string ends with ": %w", the returned error implements an Unwrap -// method returning it. -// -// If the format specifier includes a %w verb with an error operand in a -// position other than at the end, the returned error will still implement an -// Unwrap method returning the operand, but the error's Format method will not -// return the wrapped error. -// -// It is invalid to include more than one %w verb or to supply it with an -// operand that does not implement the error interface. The %w verb is otherwise -// a synonym for %v. -func Errorf(format string, a ...interface{}) error { - format = formatPlusW(format) - // Support a ": %[wsv]" suffix, which works well with xerrors.Formatter. - wrap := strings.HasSuffix(format, ": %w") - idx, format2, ok := parsePercentW(format) - percentWElsewhere := !wrap && idx >= 0 - if !percentWElsewhere && (wrap || strings.HasSuffix(format, ": %s") || strings.HasSuffix(format, ": %v")) { - err := errorAt(a, len(a)-1) - if err == nil { - return &noWrapError{fmt.Sprintf(format, a...), nil, Caller(1)} - } - // TODO: this is not entirely correct. The error value could be - // printed elsewhere in format if it mixes numbered with unnumbered - // substitutions. With relatively small changes to doPrintf we can - // have it optionally ignore extra arguments and pass the argument - // list in its entirety. - msg := fmt.Sprintf(format[:len(format)-len(": %s")], a[:len(a)-1]...) - frame := Frame{} - if internal.EnableTrace { - frame = Caller(1) - } - if wrap { - return &wrapError{msg, err, frame} - } - return &noWrapError{msg, err, frame} - } - // Support %w anywhere. - // TODO: don't repeat the wrapped error's message when %w occurs in the middle. - msg := fmt.Sprintf(format2, a...) - if idx < 0 { - return &noWrapError{msg, nil, Caller(1)} - } - err := errorAt(a, idx) - if !ok || err == nil { - // Too many %ws or argument of %w is not an error. Approximate the Go - // 1.13 fmt.Errorf message. - return &noWrapError{fmt.Sprintf("%sw(%s)", percentBangString, msg), nil, Caller(1)} - } - frame := Frame{} - if internal.EnableTrace { - frame = Caller(1) - } - return &wrapError{msg, err, frame} -} - -func errorAt(args []interface{}, i int) error { - if i < 0 || i >= len(args) { - return nil - } - err, ok := args[i].(error) - if !ok { - return nil - } - return err -} - -// formatPlusW is used to avoid the vet check that will barf at %w. -func formatPlusW(s string) string { - return s -} - -// Return the index of the only %w in format, or -1 if none. -// Also return a rewritten format string with %w replaced by %v, and -// false if there is more than one %w. -// TODO: handle "%[N]w". -func parsePercentW(format string) (idx int, newFormat string, ok bool) { - // Loosely copied from golang.org/x/tools/go/analysis/passes/printf/printf.go. - idx = -1 - ok = true - n := 0 - sz := 0 - var isW bool - for i := 0; i < len(format); i += sz { - if format[i] != '%' { - sz = 1 - continue - } - // "%%" is not a format directive. - if i+1 < len(format) && format[i+1] == '%' { - sz = 2 - continue - } - sz, isW = parsePrintfVerb(format[i:]) - if isW { - if idx >= 0 { - ok = false - } else { - idx = n - } - // "Replace" the last character, the 'w', with a 'v'. - p := i + sz - 1 - format = format[:p] + "v" + format[p+1:] - } - n++ - } - return idx, format, ok -} - -// Parse the printf verb starting with a % at s[0]. -// Return how many bytes it occupies and whether the verb is 'w'. -func parsePrintfVerb(s string) (int, bool) { - // Assume only that the directive is a sequence of non-letters followed by a single letter. - sz := 0 - var r rune - for i := 1; i < len(s); i += sz { - r, sz = utf8.DecodeRuneInString(s[i:]) - if unicode.IsLetter(r) { - return i + sz, r == 'w' - } - } - return len(s), false -} - -type noWrapError struct { - msg string - err error - frame Frame -} - -func (e *noWrapError) Error() string { - return fmt.Sprint(e) -} - -func (e *noWrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) } - -func (e *noWrapError) FormatError(p Printer) (next error) { - p.Print(e.msg) - e.frame.Format(p) - return e.err -} - -type wrapError struct { - msg string - err error - frame Frame -} - -func (e *wrapError) Error() string { - return fmt.Sprint(e) -} - -func (e *wrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) } - -func (e *wrapError) FormatError(p Printer) (next error) { - p.Print(e.msg) - e.frame.Format(p) - return e.err -} - -func (e *wrapError) Unwrap() error { - return e.err -} diff --git a/tools/metrics/vendor/golang.org/x/xerrors/format.go b/tools/metrics/vendor/golang.org/x/xerrors/format.go deleted file mode 100644 index 1bc9c26b97..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/format.go +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xerrors - -// A Formatter formats error messages. -type Formatter interface { - error - - // FormatError prints the receiver's first error and returns the next error in - // the error chain, if any. - FormatError(p Printer) (next error) -} - -// A Printer formats error messages. -// -// The most common implementation of Printer is the one provided by package fmt -// during Printf (as of Go 1.13). Localization packages such as golang.org/x/text/message -// typically provide their own implementations. -type Printer interface { - // Print appends args to the message output. - Print(args ...interface{}) - - // Printf writes a formatted string. - Printf(format string, args ...interface{}) - - // Detail reports whether error detail is requested. - // After the first call to Detail, all text written to the Printer - // is formatted as additional detail, or ignored when - // detail has not been requested. - // If Detail returns false, the caller can avoid printing the detail at all. - Detail() bool -} diff --git a/tools/metrics/vendor/golang.org/x/xerrors/frame.go b/tools/metrics/vendor/golang.org/x/xerrors/frame.go deleted file mode 100644 index 0de628ec50..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/frame.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xerrors - -import ( - "runtime" -) - -// A Frame contains part of a call stack. -type Frame struct { - // Make room for three PCs: the one we were asked for, what it called, - // and possibly a PC for skipPleaseUseCallersFrames. See: - // https://go.googlesource.com/go/+/032678e0fb/src/runtime/extern.go#169 - frames [3]uintptr -} - -// Caller returns a Frame that describes a frame on the caller's stack. -// The argument skip is the number of frames to skip over. -// Caller(0) returns the frame for the caller of Caller. -func Caller(skip int) Frame { - var s Frame - runtime.Callers(skip+1, s.frames[:]) - return s -} - -// location reports the file, line, and function of a frame. -// -// The returned function may be "" even if file and line are not. -func (f Frame) location() (function, file string, line int) { - frames := runtime.CallersFrames(f.frames[:]) - if _, ok := frames.Next(); !ok { - return "", "", 0 - } - fr, ok := frames.Next() - if !ok { - return "", "", 0 - } - return fr.Function, fr.File, fr.Line -} - -// Format prints the stack as error detail. -// It should be called from an error's Format implementation -// after printing any other error detail. -func (f Frame) Format(p Printer) { - if p.Detail() { - function, file, line := f.location() - if function != "" { - p.Printf("%s\n ", function) - } - if file != "" { - p.Printf("%s:%d\n", file, line) - } - } -} diff --git a/tools/metrics/vendor/golang.org/x/xerrors/internal/internal.go b/tools/metrics/vendor/golang.org/x/xerrors/internal/internal.go deleted file mode 100644 index 89f4eca5df..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/internal/internal.go +++ /dev/null @@ -1,8 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package internal - -// EnableTrace indicates whether stack information should be recorded in errors. -var EnableTrace = true diff --git a/tools/metrics/vendor/golang.org/x/xerrors/wrap.go b/tools/metrics/vendor/golang.org/x/xerrors/wrap.go deleted file mode 100644 index 9a3b510374..0000000000 --- a/tools/metrics/vendor/golang.org/x/xerrors/wrap.go +++ /dev/null @@ -1,106 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xerrors - -import ( - "reflect" -) - -// A Wrapper provides context around another error. -type Wrapper interface { - // Unwrap returns the next error in the error chain. - // If there is no next error, Unwrap returns nil. - Unwrap() error -} - -// Opaque returns an error with the same error formatting as err -// but that does not match err and cannot be unwrapped. -func Opaque(err error) error { - return noWrapper{err} -} - -type noWrapper struct { - error -} - -func (e noWrapper) FormatError(p Printer) (next error) { - if f, ok := e.error.(Formatter); ok { - return f.FormatError(p) - } - p.Print(e.error) - return nil -} - -// Unwrap returns the result of calling the Unwrap method on err, if err implements -// Unwrap. Otherwise, Unwrap returns nil. -func Unwrap(err error) error { - u, ok := err.(Wrapper) - if !ok { - return nil - } - return u.Unwrap() -} - -// Is reports whether any error in err's chain matches target. -// -// An error is considered to match a target if it is equal to that target or if -// it implements a method Is(error) bool such that Is(target) returns true. -func Is(err, target error) bool { - if target == nil { - return err == target - } - - isComparable := reflect.TypeOf(target).Comparable() - for { - if isComparable && err == target { - return true - } - if x, ok := err.(interface{ Is(error) bool }); ok && x.Is(target) { - return true - } - // TODO: consider supporing target.Is(err). This would allow - // user-definable predicates, but also may allow for coping with sloppy - // APIs, thereby making it easier to get away with them. - if err = Unwrap(err); err == nil { - return false - } - } -} - -// As finds the first error in err's chain that matches the type to which target -// points, and if so, sets the target to its value and returns true. An error -// matches a type if it is assignable to the target type, or if it has a method -// As(interface{}) bool such that As(target) returns true. As will panic if target -// is not a non-nil pointer to a type which implements error or is of interface type. -// -// The As method should set the target to its value and return true if err -// matches the type to which target points. -func As(err error, target interface{}) bool { - if target == nil { - panic("errors: target cannot be nil") - } - val := reflect.ValueOf(target) - typ := val.Type() - if typ.Kind() != reflect.Ptr || val.IsNil() { - panic("errors: target must be a non-nil pointer") - } - if e := typ.Elem(); e.Kind() != reflect.Interface && !e.Implements(errorType) { - panic("errors: *target must be interface or implement error") - } - targetType := typ.Elem() - for err != nil { - if reflect.TypeOf(err).AssignableTo(targetType) { - val.Elem().Set(reflect.ValueOf(err)) - return true - } - if x, ok := err.(interface{ As(interface{}) bool }); ok && x.As(target) { - return true - } - err = Unwrap(err) - } - return false -} - -var errorType = reflect.TypeOf((*error)(nil)).Elem() diff --git a/tools/metrics/vendor/modules.txt b/tools/metrics/vendor/modules.txt index 0965088134..ac7c21fc7d 100644 --- a/tools/metrics/vendor/modules.txt +++ b/tools/metrics/vendor/modules.txt @@ -194,17 +194,16 @@ github.com/prometheus/procfs/internal/fs github.com/prometheus/procfs/internal/util # github.com/satori/go.uuid v1.2.0 ## explicit -# golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 -## explicit; go 1.17 +# golang.org/x/crypto v0.21.0 +## explicit; go 1.18 golang.org/x/crypto/ed25519 -golang.org/x/crypto/ed25519/internal/edwards25519 -# golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 +# golang.org/x/mod v0.8.0 ## explicit; go 1.17 golang.org/x/mod/internal/lazyregexp golang.org/x/mod/module golang.org/x/mod/semver -# golang.org/x/net v0.0.0-20220225172249-27dd8689420f -## explicit; go 1.17 +# golang.org/x/net v0.23.0 +## explicit; go 1.18 golang.org/x/net/bpf golang.org/x/net/context golang.org/x/net/context/ctxhttp @@ -220,14 +219,13 @@ golang.org/x/net/ipv6 golang.org/x/oauth2 golang.org/x/oauth2/clientcredentials golang.org/x/oauth2/internal -# golang.org/x/sys v0.1.0 -## explicit; go 1.17 +# golang.org/x/sys v0.18.0 +## explicit; go 1.18 golang.org/x/sys/execabs -golang.org/x/sys/internal/unsafeheader golang.org/x/sys/unix golang.org/x/sys/windows -# golang.org/x/text v0.3.7 -## explicit; go 1.17 +# golang.org/x/text v0.14.0 +## explicit; go 1.18 golang.org/x/text/encoding golang.org/x/text/encoding/charmap golang.org/x/text/encoding/htmlindex @@ -245,12 +243,11 @@ golang.org/x/text/internal/utf8internal golang.org/x/text/language golang.org/x/text/runes golang.org/x/text/transform -# golang.org/x/tools v0.1.10 -## explicit; go 1.17 +# golang.org/x/tools v0.6.0 +## explicit; go 1.18 golang.org/x/tools/go/ast/astutil golang.org/x/tools/go/ast/inspector golang.org/x/tools/go/gcexportdata -golang.org/x/tools/go/internal/gcimporter golang.org/x/tools/go/internal/packagesdriver golang.org/x/tools/go/packages golang.org/x/tools/go/types/typeutil @@ -260,16 +257,15 @@ golang.org/x/tools/internal/event/core golang.org/x/tools/internal/event/keys golang.org/x/tools/internal/event/label golang.org/x/tools/internal/fastwalk +golang.org/x/tools/internal/gcimporter golang.org/x/tools/internal/gocommand golang.org/x/tools/internal/gopathwalk golang.org/x/tools/internal/imports golang.org/x/tools/internal/packagesinternal +golang.org/x/tools/internal/pkgbits +golang.org/x/tools/internal/tokeninternal golang.org/x/tools/internal/typeparams golang.org/x/tools/internal/typesinternal -# golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 -## explicit; go 1.11 -golang.org/x/xerrors -golang.org/x/xerrors/internal # google.golang.org/appengine v1.6.1 ## explicit google.golang.org/appengine/internal