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Extract typing.

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This commit is contained in:
Daniel Kirchner
2020-04-14 10:59:28 +02:00
parent accd8d7667
commit 3af43fd350
25 changed files with 461 additions and 340 deletions
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libsolidity/analysis/TypeChecker.cpp
+46
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@@ -2776,11 +2776,57 @@ bool TypeChecker::visit(IndexRangeAccess const& _access)
return false;
}
vector<Declaration const*> TypeChecker::cleanOverloadedDeclarations(
Identifier const& _identifier,
vector<Declaration const*> const& _candidates
)
{
solAssert(_candidates.size() > 1, "");
vector<Declaration const*> uniqueDeclarations;
for (Declaration const* declaration: _candidates)
{
solAssert(declaration, "");
// the declaration is functionDefinition, eventDefinition or a VariableDeclaration while declarations > 1
solAssert(
dynamic_cast<FunctionDefinition const*>(declaration) ||
dynamic_cast<EventDefinition const*>(declaration) ||
dynamic_cast<VariableDeclaration const*>(declaration) ||
dynamic_cast<MagicVariableDeclaration const*>(declaration),
"Found overloading involving something not a function, event or a (magic) variable."
);
FunctionTypePointer functionType {declaration->functionType(false)};
if (!functionType)
functionType = declaration->functionType(true);
solAssert(functionType, "Failed to determine the function type of the overloaded.");
for (TypePointer parameter: functionType->parameterTypes() + functionType->returnParameterTypes())
if (!parameter)
m_errorReporter.fatalDeclarationError(_identifier.location(), "Function type can not be used in this context.");
if (uniqueDeclarations.end() == find_if(
uniqueDeclarations.begin(),
uniqueDeclarations.end(),
[&](Declaration const* d)
{
FunctionType const* newFunctionType = d->functionType(false);
if (!newFunctionType)
newFunctionType = d->functionType(true);
return newFunctionType && functionType->hasEqualParameterTypes(*newFunctionType);
}
))
uniqueDeclarations.push_back(declaration);
}
return uniqueDeclarations;
}
bool TypeChecker::visit(Identifier const& _identifier)
{
IdentifierAnnotation& annotation = _identifier.annotation();
if (!annotation.referencedDeclaration)
{
annotation.overloadedDeclarations = cleanOverloadedDeclarations(_identifier, annotation.candidateDeclarations);
if (!annotation.arguments)
{
// The identifier should be a public state variable shadowing other functions