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SHA3 of string literals now should work

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This commit is contained in:
Lefteris Karapetsas 2015-02-06 16:27:41 +01:00
parent 2c9ff4747d
commit 293344b473
4 changed files with 10 additions and 18 deletions
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14
AST.cpp
View File

@ -493,19 +493,9 @@ void FunctionCall::checkTypeRequirements()
if (m_names.empty())
{
for (size_t i = 0; i < m_arguments.size(); ++i)
{
if (functionType->getLocation() == FunctionType::Location::SHA3)
{
#if 0 // are we sure we want that? Literal constant nums can't live outside storage and so sha3(42) will fail
if (!m_arguments[i]->getType()->canLiveOutsideStorage())
BOOST_THROW_EXCEPTION(createTypeError("SHA3 called with argument that can't live outside storage"));
#endif
if (!m_arguments[i]->getType()->isImplicitlyConvertibleTo(*parameterTypes[0]))
BOOST_THROW_EXCEPTION(m_arguments[i]->createTypeError("SHA3 argument can't be converted to hash"));
} else if (!m_arguments[i]->getType()->isImplicitlyConvertibleTo(*parameterTypes[i]))
if (functionType->getLocation() != FunctionType::Location::SHA3 &&
!m_arguments[i]->getType()->isImplicitlyConvertibleTo(*parameterTypes[i]))
BOOST_THROW_EXCEPTION(createTypeError("Invalid type for argument in function call."));
}
}
else if (functionType->getLocation() == FunctionType::Location::SHA3)
BOOST_THROW_EXCEPTION(createTypeError("Named arguments can't be used for SHA3."));

11
ExpressionCompiler.cpp
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@ -851,22 +851,23 @@ unsigned ExpressionCompiler::appendArgumentsCopyToMemory(vector<ASTPointer<Expre
// without type conversion
for (unsigned i = 0; i < _arguments.size(); ++i)
{
bool wantPadding = (_arguments[i]->getType()->getCategory() == Type::Category::STRING) ? false : true;
_arguments[i]->accept(*this);
length += moveTypeToMemory(*_arguments[i]->getType()->getRealType(), _arguments[i]->getLocation(), _memoryOffset + length);
length += moveTypeToMemory(*_arguments[i]->getType()->getRealType(), _arguments[i]->getLocation(), _memoryOffset + length, wantPadding);
}
return length;
}
unsigned ExpressionCompiler::moveTypeToMemory(Type const& _type, Location const& _location, unsigned _memoryOffset)
unsigned ExpressionCompiler::moveTypeToMemory(Type const& _type, Location const& _location, unsigned _memoryOffset, bool _padToWordBoundaries)
{
unsigned const c_numBytes = CompilerUtils::getPaddedSize(_type.getCalldataEncodedSize());
unsigned const encodedSize = _type.getCalldataEncodedSize();
unsigned const c_numBytes = _padToWordBoundaries ? CompilerUtils::getPaddedSize(encodedSize) : encodedSize;
if (c_numBytes == 0 || c_numBytes > 32)
BOOST_THROW_EXCEPTION(CompilerError()
<< errinfo_sourceLocation(_location)
<< errinfo_comment("Type " + _type.toString() + " not yet supported."));
bool const c_leftAligned = _type.getCategory() == Type::Category::STRING;
bool const c_padToWords = true;
return CompilerUtils(m_context).storeInMemory(_memoryOffset, c_numBytes, c_leftAligned, c_padToWords);
return CompilerUtils(m_context).storeInMemory(_memoryOffset, c_numBytes, c_leftAligned, _padToWordBoundaries);
}
unsigned ExpressionCompiler::appendTypeConversionAndMoveToMemory(Type const& _expectedType, Type const& _type,

2
ExpressionCompiler.h
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@ -103,7 +103,7 @@ private:
Location const& _location, unsigned _memoryOffset = 0);
/// Appends code that moves a type to memory
/// @returns the number of bytes copied to memory
unsigned moveTypeToMemory(Type const& _type, Location const& _location, unsigned _memoryOffset);
unsigned moveTypeToMemory(Type const& _type, Location const& _location, unsigned _memoryOffset, bool _padToWordBoundaries = true);
/// Appends code that evaluates a single expression and copies it to memory (with optional offset).
/// @returns the number of bytes copied to memory
unsigned appendExpressionCopyToMemory(Type const& _expectedType, Expression const& _expression,

1
Types.h
View File

@ -249,6 +249,7 @@ public:
virtual std::string toString() const override { return "string" + dev::toString(m_bytes); }
virtual u256 literalValue(Literal const* _literal) const override;
virtual TypePointer getRealType() const override { return std::make_shared<StaticStringType>(m_bytes); }
int getNumBytes() const { return m_bytes; }