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Extract function to compute function selector from signature.

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chriseth
2020-10-12 17:57:34 +02:00
parent bc97c3e1ce
commit cb0d1134b7
8 changed files with 57 additions and 22 deletions
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libsolidity/codegen/ExpressionCompiler.cpp
+2 -2
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@@ -33,6 +33,7 @@
#include <libevmasm/GasMeter.h>
#include <libsolutil/Common.h>
#include <libsolutil/FunctionSelector.h>
#include <libsolutil/Keccak256.h>
#include <libsolutil/Whiskers.h>
@@ -1187,8 +1188,7 @@ bool ExpressionCompiler::visit(FunctionCall const& _functionCall)
// hash the signature
if (auto const* stringType = dynamic_cast<StringLiteralType const*>(selectorType))
{
FixedHash<4> hash(keccak256(stringType->value()));
m_context << (u256(FixedHash<4>::Arith(hash)) << (256 - 32));
m_context << util::selectorFromSignature(stringType->value());
dataOnStack = TypeProvider::fixedBytes(4);
}
else