AST::Value CallValue(Context& context, AST::Value rawValue, HeapArray<AST::Value> args, const Debug::SourceLocation& location) {
auto value = derefValue(std::move(rawValue));
if (getDerefType(value.type())->isTypename()) {
return CallValue(context, GetStaticMethod(context, std::move(value), context.getCString("create"), location), std::move(args), location);
}
if (!value.type()->isCallable()) {
// Try to use 'call' method.
if (TypeCapabilities(context).hasCallMethod(getDerefType(value.type()))) {
return CallValue(context, GetMethod(context, std::move(value),
context.getCString("call"), location),
std::move(args), location);
} else {
context.issueDiag(TypeNotCallableDiag(getDerefType(value.type())),
location);
return AST::Value::Constant(Constant::Integer(0), context.typeBuilder().getIntType());
}
}
const auto functionType = value.type()->asFunctionType();
const auto& typeList = functionType.parameterTypes();
if (functionType.attributes().isVarArg()) {
if (args.size() < typeList.size()) {
context.issueDiag(VarArgTooFewArgsDiag(value.toDiagString(),
args.size(), typeList.size()),
location);
}
} else {
if (args.size() != typeList.size()) {
context.issueDiag(CallIncorrectArgCountDiag(value.toDiagString(),
args.size(), typeList.size()),
location);
}
}
if (!TypeCapabilities(context).isSized(functionType.returnType())) {
// TODO: also check that the type is not abstract.
context.issueDiag(CallReturnTypeIsUnsizedDiag(functionType.returnType()),
location);
}
if (functionType.returnType()->hasConst()) {
context.issueDiag(CallReturnTypeIsConstDiag(functionType.returnType()),
location);
}
return addDebugInfo(AST::Value::Call(std::move(value), CastFunctionArguments(context, std::move(args), typeList, location),
functionType.returnType()->stripConst()), location);
}
SEM::Value dissolveLval(Context& context, SEM::Value value, const Debug::SourceLocation& location) {
assert (canDissolveValue(context, value));
assert(value.type()->isLval() || (value.type()->isRef() && value.type()->isBuiltInReference() && value.type()->refTarget()->isLval()));
if (!value.type()->isRef()) {
value = bindReference(context, std::move(value));
}
return CallValue(context, GetSpecialMethod(context, std::move(value), context.getCString("dissolve"), location), {}, location);
}