feat: add batch precompile

Cargo.toml

@@ -63,6 +63,7 @@ num-traits = { version = "0.2", default-features = false }
 rand = { version = "0.8.5", default-features = false }
 bounded-collections = { version = "0.1.5", default-features = false }
 hex = { version = "0.4.3", default-features = false }
+paste = "1.0.6"
 
 # (native)
 array-bytes = "6.0.0"
@@ -285,6 +286,7 @@ pallet-evm-precompile-substrate-ecdsa = { path = "./precompiles/substrate-ecdsa"
 pallet-evm-precompile-xcm = { path = "./precompiles/xcm", default-features = false }
 pallet-evm-precompile-xvm = { path = "./precompiles/xvm", default-features = false }
 pallet-evm-precompile-dapps-staking = { path = "./precompiles/dapps-staking", default-features = false }
+pallet-evm-precompile-batch = { path = "./precompiles/batch", default-features = false }
 
 pallet-chain-extension-dapps-staking = { path = "./chain-extensions/dapps-staking", default-features = false }
 pallet-chain-extension-xvm = { path = "./chain-extensions/xvm", default-features = false }

precompiles/batch/Batch.sol

@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-3.0-only
+pragma solidity >=0.8.3;
+
+/// Interface to the precompiled contract on Shibuya/Shiden/Astar
+/// Predeployed at the address 0x0000000000000000000000000000000000005006
+/// For better understanding check the source code:
+/// repo: https://github.com/AstarNetwork/astar
+
+/// @title Batch precompile
+/// @dev Allows to perform multiple calls through one call to the precompile.
+/// Can be used by EOA to do multiple calls in a single transaction.
+interface Batch {
+    /// @dev Batch multiple calls into a single transaction.
+    /// All calls are performed from the address calling this precompile.
+    ///
+    /// In case of one subcall reverting following subcalls will still be attempted.
+    ///
+    /// @param to List of addresses to call.
+    /// @param value List of values for each subcall. If array is shorter than `to` then additional
+    /// calls will be performed with a value of 0.
+    /// @param callData Call data for each `to` address. If array is shorter than `to` then
+    /// additional calls will be performed with an empty call data.
+    /// @param gasLimit Gas limit for each `to` address. Use 0 to forward all the remaining gas.
+    /// If array is shorter than `to` then the remaining gas available will be used.
+    function batchSome(
+        address[] memory to,
+        uint256[] memory value,
+        bytes[] memory callData,
+        uint64[] memory gasLimit
+    ) external;
+
+    /// @dev Batch multiple calls into a single transaction.
+    /// All calls are performed from the address calling this precompile.
+    ///
+    /// In case of one subcall reverting, no more subcalls will be executed but
+    /// the batch transaction will succeed. Use "batchAll" to revert on any subcall revert.
+    ///
+    /// @param to List of addresses to call.
+    /// @param value List of values for each subcall. If array is shorter than `to` then additional
+    /// calls will be performed with a value of 0.
+    /// @param callData Call data for each `to` address. If array is shorter than `to` then
+    /// additional calls will be performed with an empty call data.
+    /// @param gasLimit Gas limit for each `to` address. Use 0 to forward all the remaining gas.
+    /// If array is shorter than `to` then the remaining gas available will be used.
+    function batchSomeUntilFailure(
+        address[] memory to,
+        uint256[] memory value,
+        bytes[] memory callData,
+        uint64[] memory gasLimit
+    ) external;
+
+    /// @dev Batch multiple calls into a single transaction.
+    /// All calls are performed from the address calling this precompile.
+    ///
+    /// In case of one subcall reverting, the entire batch will revert.
+    ///
+    /// @param to List of addresses to call.
+    /// @param value List of values for each subcall. If array is shorter than `to` then additional
+    /// calls will be performed with a value of 0.
+    /// @param callData Call data for each `to` address. If array is shorter than `to` then
+    /// additional calls will be performed with an empty call data.
+    /// @param gasLimit Gas limit for each `to` address. Use 0 to forward all the remaining gas.
+    /// If array is shorter than `to` then the remaining gas available will be used.
+    function batchAll(
+        address[] memory to,
+        uint256[] memory value,
+        bytes[] memory callData,
+        uint64[] memory gasLimit
+    ) external;
+
+    /// Emitted when a subcall succeeds.
+    event SubcallSucceeded(uint256 index);
+
+    /// Emitted when a subcall fails.
+    event SubcallFailed(uint256 index);
+
+}

precompiles/batch/Cargo.toml

@@ -0,0 +1,57 @@
+[package]
+name = "pallet-evm-precompile-batch"
+description = "A Precompile to batch multiple calls."
+version = "0.1.0"
+authors = ["StakeTechnologies", "PureStake"]
+edition.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[dependencies]
+log = { workspace = true }
+num_enum = { workspace = true }
+paste = { workspace = true }
+slices = { workspace = true }
+
+# Moonbeam
+precompile-utils = { workspace = true }
+
+# Substrate
+frame-support = { workspace = true }
+frame-system = { workspace = true }
+parity-scale-codec = { workspace = true, features = ["max-encoded-len"] }
+sp-core = { workspace = true }
+sp-io = { workspace = true }
+sp-std = { workspace = true }
+
+# Frontier
+evm = { workspace = true, features = ["with-codec"] }
+fp-evm = { workspace = true }
+pallet-evm = { workspace = true }
+
+[dev-dependencies]
+derive_more = { workspace = true }
+hex-literal = { workspace = true }
+serde = { workspace = true }
+sha3 = { workspace = true }
+
+pallet-balances = { workspace = true, features = ["std"] }
+pallet-timestamp = { workspace = true, features = ["std"] }
+parity-scale-codec = { workspace = true, features = ["max-encoded-len", "std"] }
+precompile-utils = { workspace = true, features = ["std", "testing"] }
+scale-info = { workspace = true, features = ["derive", "std"] }
+sp-runtime = { workspace = true, features = ["std"] }
+
+[features]
+default = ["std"]
+std = [
+	"fp-evm/std",
+	"frame-support/std",
+	"frame-system/std",
+	"pallet-evm/std",
+	"parity-scale-codec/std",
+	"precompile-utils/std",
+	"sp-core/std",
+	"sp-io/std",
+	"sp-std/std",
+]