gogensig:block implict incomplete recreate #67

cmd/gogensig/convert/_testdata/receiver/conf/llcppg.symb.json

@@ -1,4 +1,9 @@
 [
+  {
+    "mangle": "ares_dns_pton",
+    "c++": "ares_dns_pton(const char *, struct ares_addr *, int *)",
+    "go": "AresDnsPton"
+  },
   {
     "mangle": "ares_dns_addr_to_ptr",
     "c++": "ares_dns_addr_to_ptr(const struct ares_addr *)",

cmd/gogensig/convert/_testdata/receiver/gogensig.expect

@@ -7,7 +7,9 @@ import (
 )
 
 type X__Uint32T c.Uint
-type InAddrT X__Uint32T
+type InAddrT struct {
+	Unused [8]uint8
+}
 
 type InAddr struct {
 	SAddr InAddrT
@@ -22,14 +24,16 @@ type AresIn6Addr struct {
 ===== use.go =====
 package receiver
 
-import _ "unsafe"
+import "unsafe"
 
 type AresAddr struct {
 	Family c.Int
 	Addr   struct {
 		Addr6 AresIn6Addr
 	}
 }
+//go:linkname AresDnsPton C.ares_dns_pton
+func AresDnsPton(ipaddr *int8, addr *AresAddr, out_len *uintptr) unsafe.Pointer
 // llgo:link (*aresAddr).AresDnsAddrToPtr C.ares_dns_addr_to_ptr
 func (p *AresAddr) AresDnsAddrToPtr() *int8 {
 	return nil

cmd/gogensig/convert/_testdata/receiver/hfile/temp.h

@@ -1,3 +1,4 @@
+#include <stddef.h>
 typedef unsigned int __uint32_t;
 typedef __uint32_t in_addr_t;
 struct in_addr {

cmd/gogensig/convert/_testdata/receiver/hfile/use.h

@@ -1,2 +1,3 @@
-
+// todo(zzy): ares_addr need generate in the temp.go
+const void *ares_dns_pton(const char *ipaddr, struct ares_addr *addr, size_t *out_len);
 char *ares_dns_addr_to_ptr(const struct ares_addr *addr);

cmd/gogensig/convert/package.go

@@ -297,6 +297,9 @@ func (p *Package) handleCompleteType(decl *gogen.TypeDecl, typ *ast.RecordType,
 // For such declarations, create a empty type decl and store it in the
 // incomplete map, but not in the public symbol table.
 func (p *Package) handleImplicitForwardDecl(name string) *gogen.TypeDecl {
+	if decl, ok := p.incomplete[name]; ok {
+		return decl
+	}
 	pubName := p.nameMapper.GetGoName(name, p.trimPrefixes())
 	decl := p.emptyTypeDecl(pubName, nil)
 	p.incomplete[name] = decl