SEM::FunctionType simplifyFunctionType(Context& context, const SEM::FunctionType oldFunctionType) {
const bool isVarArg = oldFunctionType.attributes().isVarArg();
const bool isMethod = oldFunctionType.attributes().isMethod();
const bool isTemplated = oldFunctionType.attributes().isTemplated();
auto noexceptPredicate = reducePredicate(context, oldFunctionType.attributes().noExceptPredicate().copy());
const auto returnType = oldFunctionType.returnType();
const auto& argTypes = oldFunctionType.parameterTypes();
return SEM::FunctionType(SEM::FunctionAttributes(isVarArg, isMethod, isTemplated, std::move(noexceptPredicate)), returnType, argTypes.copy());
}
void ConvertTypeInstance(Context& context, AST::Node<AST::TypeInstance>& typeInstanceNode) {
for (const auto& function: *(typeInstanceNode->functionDecls)) {
PushScopeElement pushScopeElement(context.scopeStack(), ScopeElement::Function(*function));
ConvertFunctionDef(context, function);
}
if (typeInstanceNode->isEnum()) {
size_t enumValue = 0;
// Generate enum constructors.
for (const auto& constructorName: *(typeInstanceNode->constructors)) {
const auto canonicalMethodName = CanonicalizeMethodName(constructorName);
CreateEnumConstructorMethod(context, typeInstanceNode,
typeInstanceNode->getFunction(canonicalMethodName), enumValue++);
}
}
// Generate default constructor for applicable types.
if (typeInstanceNode->isException()) {
CreateExceptionConstructor(context, typeInstanceNode,
typeInstanceNode->getFunction(context.getCString("create")));
} else if (typeInstanceNode->isDatatype() || typeInstanceNode->isStruct() || typeInstanceNode->isUnion()) {
(void) DefaultMethods(context).createDefaultMethod(typeInstanceNode.get(),
typeInstanceNode->getFunction(context.getCString("create")),
typeInstanceNode.location());
}
// Generate default implicitCopy if relevant.
if (typeInstanceNode->isEnum() || typeInstanceNode->isStruct() || typeInstanceNode->isDatatype() ||
typeInstanceNode->isVariant() || typeInstanceNode->isUnion()) {
const auto existingFunction = typeInstanceNode->findFunction(context.getCString("implicitcopy"));
if (existingFunction != nullptr) {
CreateDefaultMethodOrRemove(context, *typeInstanceNode, *existingFunction,
typeInstanceNode.location());
}
}
// Generate default compare if relevant.
if (typeInstanceNode->isEnum() || typeInstanceNode->isStruct() || typeInstanceNode->isDatatype() || typeInstanceNode->isVariant()) {
const auto existingFunction = typeInstanceNode->findFunction(context.getCString("compare"));
if (existingFunction != nullptr) {
CreateDefaultMethodOrRemove(context, *typeInstanceNode, *existingFunction,
typeInstanceNode.location());
}
}
// Simplify all predicates to avoid confusing CodeGen.
for (auto& function: typeInstanceNode->functions()) {
PushScopeElement pushFunction(context.scopeStack(), ScopeElement::Function(*function));
function->setConstPredicate(reducePredicate(context, function->constPredicate().copy()));
function->setRequiresPredicate(reducePredicate(context, function->requiresPredicate().copy()));
// Simplify function type noexcept predicate.
const auto oldFunctionType = function->type();
const bool isVarArg = oldFunctionType.attributes().isVarArg();
const bool isMethod = oldFunctionType.attributes().isMethod();
const bool isTemplated = oldFunctionType.attributes().isTemplated();
auto noExceptPredicate = reducePredicate(context, oldFunctionType.attributes().noExceptPredicate().copy());
const auto returnType = oldFunctionType.returnType();
const auto& argTypes = oldFunctionType.parameterTypes();
AST::FunctionAttributes attributes(isVarArg, isMethod, isTemplated, std::move(noExceptPredicate));
function->setType(AST::FunctionType(std::move(attributes), returnType, argTypes.copy()));
}
}
