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Check if all types in bytes.concat are fixed bytes or byte array.

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This commit is contained in:
Djordje Mijovic 2021-02-23 11:05:07 +01:00
parent 1493326e48
commit 840df80dac
2 changed files with 38 additions and 0 deletions
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32
libsolidity/analysis/TypeChecker.cpp
View File

@ -2027,6 +2027,32 @@ void TypeChecker::typeCheckABIEncodeFunctions(
}
}
void TypeChecker::typeCheckBytesConcatFunction(
FunctionCall const& _functionCall,
FunctionType const* _functionType
)
{
solAssert(_functionType, "");
solAssert(_functionType->kind() == FunctionType::Kind::BytesConcat, "");
solAssert(_functionCall.names().empty(), "");
typeCheckFunctionGeneralChecks(_functionCall, _functionType);
for (shared_ptr<Expression const> const& argument: _functionCall.arguments())
if (
Type const* argumentType = type(*argument);
!argumentType->isImplicitlyConvertibleTo(*TypeProvider::fixedBytes(32)) &&
!argumentType->isImplicitlyConvertibleTo(*TypeProvider::bytesMemory())
)
m_errorReporter.typeError(
8015_error,
argument->location(),
"Invalid type for argument in the bytes.concat function call. "
"bytes or fixed bytes type is required, but " +
argumentType->toString(true) + " provided."
);
}
void TypeChecker::typeCheckFunctionGeneralChecks(
FunctionCall const& _functionCall,
FunctionTypePointer _functionType
@ -2433,6 +2459,12 @@ bool TypeChecker::visit(FunctionCall const& _functionCall)
case FunctionType::Kind::MetaType:
returnTypes = typeCheckMetaTypeFunctionAndRetrieveReturnType(_functionCall);
break;
case FunctionType::Kind::BytesConcat:
{
typeCheckBytesConcatFunction(_functionCall, functionType);
returnTypes = functionType->returnParameterTypes();
break;
}
default:
{
typeCheckFunctionCall(_functionCall, functionType);

6
libsolidity/analysis/TypeChecker.h
View File

@ -111,6 +111,12 @@ private:
FunctionTypePointer _functionType
);
/// Performs general checks and checks specific to bytes concat function call
void typeCheckBytesConcatFunction(
FunctionCall const& _functionCall,
FunctionType const* _functionType
);
void endVisit(InheritanceSpecifier const& _inheritance) override;
void endVisit(ModifierDefinition const& _modifier) override;
bool visit(FunctionDefinition const& _function) override;