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Support revert()

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This commit is contained in:
Alex Beregszaszi 2017-02-06 22:11:19 +00:00
parent 148f923351
commit f3158f92d6
4 changed files with 10 additions and 1 deletions
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4
libsolidity/analysis/GlobalContext.cpp
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@ -67,7 +67,9 @@ m_magicVariables(vector<shared_ptr<MagicVariableDeclaration const>>{make_shared<
make_shared<MagicVariableDeclaration>("ripemd160",
make_shared<FunctionType>(strings(), strings{"bytes20"}, FunctionType::Location::RIPEMD160, true)),
make_shared<MagicVariableDeclaration>("assert",
make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Location::Assert))})
make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Location::Assert)),
make_shared<MagicVariableDeclaration>("revert",
make_shared<FunctionType>(strings(), strings(), FunctionType::Location::Revert))})
{
}

1
libsolidity/ast/Types.cpp
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@ -2095,6 +2095,7 @@ string FunctionType::identifier() const
case Location::Send: id += "send"; break;
case Location::SHA3: id += "sha3"; break;
case Location::Selfdestruct: id += "selfdestruct"; break;
case Location::Revert: id += "revert"; break;
case Location::ECRecover: id += "ecrecover"; break;
case Location::SHA256: id += "sha256"; break;
case Location::RIPEMD160: id += "ripemd160"; break;

1
libsolidity/ast/Types.h
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@ -828,6 +828,7 @@ public:
Send, ///< CALL, but without data and gas
SHA3, ///< SHA3
Selfdestruct, ///< SELFDESTRUCT
Revert, ///< REVERT
ECRecover, ///< CALL to special contract for ecrecover
SHA256, ///< CALL to special contract for sha256
RIPEMD160, ///< CALL to special contract for ripemd160

5
libsolidity/codegen/ExpressionCompiler.cpp
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@ -650,6 +650,11 @@ bool ExpressionCompiler::visit(FunctionCall const& _functionCall)
utils().convertType(*arguments.front()->annotation().type, *function.parameterTypes().front(), true);
m_context << Instruction::SELFDESTRUCT;
break;
case Location::Revert:
// memory offset returned - zero length
m_context << u256(0) << u256(0);
m_context << Instruction::REVERT;
break;
case Location::SHA3:
{
TypePointers argumentTypes;