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-rw-r--r--libsolidity/codegen/ExpressionCompiler.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/libsolidity/codegen/ExpressionCompiler.cpp b/libsolidity/codegen/ExpressionCompiler.cpp
index d27af7db..7162cb0d 100644
--- a/libsolidity/codegen/ExpressionCompiler.cpp
+++ b/libsolidity/codegen/ExpressionCompiler.cpp
@@ -1610,6 +1610,10 @@ void ExpressionCompiler::appendExternalFunctionCall(
bool returnSuccessCondition = funKind == FunctionType::Kind::BareCall || funKind == FunctionType::Kind::BareCallCode || funKind == FunctionType::Kind::BareDelegateCall;
bool isCallCode = funKind == FunctionType::Kind::BareCallCode || funKind == FunctionType::Kind::CallCode;
bool isDelegateCall = funKind == FunctionType::Kind::BareDelegateCall || funKind == FunctionType::Kind::DelegateCall;
+ bool useStaticCall =
+ _functionType.stateMutability() <= StateMutability::View &&
+ m_context.experimentalFeatureActive(ExperimentalFeature::V050) &&
+ m_context.evmVersion().hasStaticCall();
unsigned retSize = 0;
if (returnSuccessCondition)
@@ -1738,6 +1742,8 @@ void ExpressionCompiler::appendExternalFunctionCall(
// [value,] addr, gas (stack top)
if (isDelegateCall)
solAssert(!_functionType.valueSet(), "Value set for delegatecall");
+ else if (useStaticCall)
+ solAssert(!_functionType.valueSet(), "Value set for staticcall");
else if (_functionType.valueSet())
m_context << dupInstruction(m_context.baseToCurrentStackOffset(valueStackPos));
else
@@ -1769,10 +1775,13 @@ void ExpressionCompiler::appendExternalFunctionCall(
gasNeededByCaller += eth::GasCosts::callNewAccountGas; // we never know
m_context << gasNeededByCaller << Instruction::GAS << Instruction::SUB;
}
+ // Order is important here, STATICCALL might overlap with DELEGATECALL.
if (isDelegateCall)
m_context << Instruction::DELEGATECALL;
else if (isCallCode)
m_context << Instruction::CALLCODE;
+ else if (useStaticCall)
+ m_context << Instruction::STATICCALL;
else
m_context << Instruction::CALL;