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Introduce inContractKind helper on FunctionDefinition

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This commit is contained in:
Alex Beregszaszi 2018-03-14 16:56:06 +01:00
parent ef3595b000
commit 8bae2dba7c
3 changed files with 14 additions and 11 deletions
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16
libsolidity/analysis/TypeChecker.cpp
View File

@ -366,16 +366,6 @@ void TypeChecker::checkContractIllegalOverrides(ContractDefinition const& _contr
}
}
namespace {
bool functionIsInInterface(FunctionDefinition const& _function)
{
return dynamic_cast<ContractDefinition const*>(_function.scope()) &&
dynamic_cast<ContractDefinition const*>(_function.scope())->contractKind() == ContractDefinition::ContractKind::Interface;
}
}
void TypeChecker::checkFunctionOverride(FunctionDefinition const& function, FunctionDefinition const& super)
{
FunctionType functionType(function);
@ -390,7 +380,11 @@ void TypeChecker::checkFunctionOverride(FunctionDefinition const& function, Func
if (function.visibility() != super.visibility())
{
// visibility is enforced to be external in interfaces, but a contract can override that with public
if (functionIsInInterface(super) && !functionIsInInterface(function) && function.visibility() == FunctionDefinition::Visibility::Public)
if (
super.inContractKind() == ContractDefinition::ContractKind::Interface &&
function.inContractKind() != ContractDefinition::ContractKind::Interface &&
function.visibility() == FunctionDefinition::Visibility::Public
)
return;
overrideError(function, super, "Overriding function visibility differs.");
}

7
libsolidity/ast/AST.cpp
View File

@ -290,6 +290,13 @@ TypeDeclarationAnnotation& EnumDefinition::annotation() const
return dynamic_cast<TypeDeclarationAnnotation&>(*m_annotation);
}
ContractDefinition::ContractKind FunctionDefinition::inContractKind() const
{
auto contractDef = dynamic_cast<ContractDefinition const*>(scope());
solAssert(contractDef, "Enclosing Scope of FunctionDefinition was not set.");
return contractDef->contractKind();
}
shared_ptr<FunctionType> FunctionDefinition::functionType(bool _internal) const
{
if (_internal)

2
libsolidity/ast/AST.h
View File

@ -624,6 +624,8 @@ public:
/// arguments separated by commas all enclosed in parentheses without any spaces.
std::string externalSignature() const;
ContractDefinition::ContractKind inContractKind() const;
virtual TypePointer type() const override;
/// @param _internal false indicates external interface is concerned, true indicates internal interface is concerned.