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| author | chriseth <chris@ethereum.org> | 2018-04-06 21:14:55 +0800 |
|---|---|---|
| committer | chriseth <chris@ethereum.org> | 2018-04-12 19:09:38 +0800 |
| commit | 4faa839813ce76fc87f99b002aad6cadd2b784e1 (patch) | |
| tree | c461378847bc2ad15f0cc85fc2100a26b9ee9902 /libsolidity/codegen/CompilerUtils.cpp | |
| parent | 338a875134f2e41e9a7e254cc3f7d87c7f4d462e (diff) | |
| download | dexon-solidity-4faa839813ce76fc87f99b002aad6cadd2b784e1.tar.gz dexon-solidity-4faa839813ce76fc87f99b002aad6cadd2b784e1.tar.zst dexon-solidity-4faa839813ce76fc87f99b002aad6cadd2b784e1.zip | |
Use error signature for revert data.
Diffstat (limited to 'libsolidity/codegen/CompilerUtils.cpp')
| -rw-r--r-- | libsolidity/codegen/CompilerUtils.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libsolidity/codegen/CompilerUtils.cpp b/libsolidity/codegen/CompilerUtils.cpp index 34337d7d..b4550153 100644 --- a/libsolidity/codegen/CompilerUtils.cpp +++ b/libsolidity/codegen/CompilerUtils.cpp @@ -78,6 +78,20 @@ void CompilerUtils::toSizeAfterFreeMemoryPointer() m_context << Instruction::SWAP1; } +void CompilerUtils::revertWithStringData(Type const& _argumentType) +{ + solAssert(_argumentType.isImplicitlyConvertibleTo(*Type::fromElementaryTypeName("string memory")), ""); + fetchFreeMemoryPointer(); + m_context << (u256(FixedHash<4>::Arith(FixedHash<4>(dev::keccak256("Error(string)")))) << (256 - 32)); + m_context << Instruction::DUP2 << Instruction::MSTORE; + m_context << u256(4) << Instruction::ADD; + // Stack: <string data> <mem pos of encoding start> + abiEncode({_argumentType.shared_from_this()}, {make_shared<ArrayType>(DataLocation::Memory, true)}); + toSizeAfterFreeMemoryPointer(); + m_context << Instruction::REVERT; + m_context.adjustStackOffset(_argumentType.sizeOnStack()); +} + unsigned CompilerUtils::loadFromMemory( unsigned _offset, Type const& _type, |