void CreateEnumConstructorMethod(Context& context,
const AST::Node<AST::TypeInstance>& typeInstanceNode,
AST::Function& function, const size_t value) {
assert(typeInstanceNode->isEnum());
if (function.hasScope()) {
// Function already has a scope; this can happen when
// the user has given duplicate enum constructors, in
// which case we will have issued an error but continued
// onwards to find more errors.
return;
}
auto functionScope = AST::Scope::Create(typeInstanceNode.location());
HeapArray<AST::Value> constructValues;
const auto intConstant = Constant::Integer(APInt(value));
const auto intType = getBuiltInType(context, context.getCString("int_t"), {});
constructValues.push_back(AST::Value::Constant(intConstant, intType));
auto internalConstructedValue = AST::Value::InternalConstruct(typeInstanceNode->selfType(), std::move(constructValues));
functionScope->statements().push_back(AST::Statement::Return(std::move(internalConstructedValue)));
function.setScope(std::move(functionScope));
}
SEM::Value GetTemplatedMethodWithoutResolution(Context& context, SEM::Value value, const SEM::Type* const type, const String& methodName, SEM::ValueArray templateArguments, const Debug::SourceLocation& location) {
assert(value.type()->isRef() && value.type()->isBuiltInReference());
if (!type->isObjectOrTemplateVar()) {
throw ErrorException(makeString("Cannot get method '%s' for non-object type '%s' at position %s.",
methodName.c_str(), type->toString().c_str(), location.toString().c_str()));
}
const auto methodSet = getTypeMethodSet(context, type);
const auto& objectConstPredicate = methodSet->constPredicate();
const auto canonicalMethodName = CanonicalizeMethodName(methodName);
const auto methodIterator = methodSet->find(canonicalMethodName);
if (methodIterator == methodSet->end()) {
throw ErrorException(makeString("Cannot find method '%s' for type '%s' at position %s.",
methodName.c_str(),
type->toString().c_str(),
location.toString().c_str()));
}
const auto& methodElement = methodIterator->second;
if (methodElement.isStatic()) {
throw ErrorException(makeString("Cannot access static method '%s' for value of type '%s' at position %s.",
methodName.c_str(),
type->toString().c_str(),
location.toString().c_str()));
}
auto templateVariableAssignments = type->generateTemplateVarMap();
const auto function = type->isObject() ? type->getObjectType()->functions().at(canonicalMethodName).get() : nullptr;
if (function != nullptr) {
const auto& templateVariables = function->templateVariables();
if (templateVariables.size() != templateArguments.size()) {
// Try to apply some basic deduction...
if (templateVariables.size() == 1 && templateArguments.size() == 0 &&
function->constPredicate().isVariable() &&
function->constPredicate().variableTemplateVar() == templateVariables[0]
) {
const auto boolType = getBuiltInType(context, context.getCString("bool"), {});
templateArguments.push_back(SEM::Value::PredicateExpr(objectConstPredicate.copy(), boolType));
} else {
throw ErrorException(makeString("Incorrect number of template "
"arguments provided for method '%s'; %llu were required, "
"but %llu were provided at position %s.",
function->name().toString().c_str(),
(unsigned long long) templateVariables.size(),
(unsigned long long) templateArguments.size(),
location.toString().c_str()));
}
}
// Add function template variable => argument mapping.
for (size_t i = 0; i < templateArguments.size(); i++) {
const auto templateVariable = templateVariables.at(i);
const auto& templateValue = templateArguments.at(i);
if (templateValue.isTypeRef()) {
const auto templateTypeValue = templateValue.typeRefType()->resolveAliases();
if (!templateTypeValue->isObjectOrTemplateVar() || templateTypeValue->isInterface()) {
throw ErrorException(makeString("Invalid type '%s' passed "
"as template parameter '%s' for method '%s' at position %s.",
templateTypeValue->toString().c_str(),
templateVariable->name().toString().c_str(),
function->name().toString().c_str(),
location.toString().c_str()));
}
templateVariableAssignments.insert(std::make_pair(templateVariable, SEM::Value::TypeRef(templateTypeValue, templateValue.type())));
} else {
templateVariableAssignments.insert(std::make_pair(templateVariable, templateValue.copy()));
}
}
} else {
assert(templateArguments.empty());
}
const auto methodConstPredicate = methodElement.constPredicate().substitute(templateVariableAssignments);
if (!objectConstPredicate.implies(methodConstPredicate)) {
throw ErrorException(makeString("Cannot refer to mutator method '%s' from const object of type '%s' at position %s.",
methodName.c_str(),
type->toString().c_str(),
location.toString().c_str()));
}
// Now check the template arguments satisfy the requires predicate.
const auto& requirePredicate = methodElement.requirePredicate();
// Conservatively assume require predicate is not satisified if result is undetermined.
const bool satisfiesRequireDefault = false;
if (!evaluatePredicateWithDefault(context, requirePredicate, templateVariableAssignments, satisfiesRequireDefault)) {
throw ErrorException(makeString("Template arguments do not satisfy "
"require predicate '%s' of method '%s' at position %s.",
requirePredicate.substitute(templateVariableAssignments).toString().c_str(),
methodName.c_str(),
location.toString().c_str()));
}
if (function != nullptr) {
const auto functionType = simplifyFunctionType(context, function->type().substitute(templateVariableAssignments));
const auto functionRefType = createFunctionPointerType(context, functionType);
auto functionRef = addDebugInfo(SEM::Value::FunctionRef(type, function, std::move(templateArguments), functionRefType), location);
if (type->isInterface()) {
const auto interfaceMethodType = createInterfaceMethodType(context, functionType);
return addDebugInfo(SEM::Value::InterfaceMethodObject(std::move(functionRef), std::move(value), interfaceMethodType), location);
} else {
const auto methodType = createMethodType(context, functionType);
return addDebugInfo(SEM::Value::MethodObject(std::move(functionRef), std::move(value), methodType), location);
}
} else {
const bool isTemplated = true;
const auto functionType = methodElement.createFunctionType(isTemplated);
const auto functionRefType = createFunctionPointerType(context, functionType);
auto functionRef = addDebugInfo(SEM::Value::TemplateFunctionRef(type, methodName, functionRefType), location);
const auto methodType = createMethodType(context, functionType);
return addDebugInfo(SEM::Value::MethodObject(std::move(functionRef), std::move(value), methodType), location);
}
}
const SEM::Type* makeFinalLvalType(Context& context, const SEM::Type* const valueType) {
return getBuiltInType(context, context.getCString("final_lval"), { valueType })->createLvalType(valueType);
}
