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LibJS: Add spec comments to the NativeError constructor
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1 changed files with 52 additions and 43 deletions
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@ -62,49 +62,58 @@ ThrowCompletionOr<Object*> ErrorConstructor::construct(FunctionObject& new_targe
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return error;
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}
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
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ConstructorName::ConstructorName(GlobalObject& global_object) \
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: NativeFunction(*static_cast<Object*>(global_object.error_constructor())) \
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{ \
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} \
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\
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void ConstructorName::initialize(GlobalObject& global_object) \
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{ \
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auto& vm = this->vm(); \
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NativeFunction::initialize(global_object); \
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\
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/* 20.5.6.2.1 NativeError.prototype, \
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https://tc39.es/ecma262/#sec-nativeerror.prototype */ \
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define_direct_property(vm.names.prototype, global_object.snake_name##_prototype(), 0); \
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\
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define_direct_property(vm.names.length, Value(1), Attribute::Configurable); \
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} \
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\
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ConstructorName::~ConstructorName() { } \
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\
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/* 20.5.6.1.1 NativeError ( message ), https://tc39.es/ecma262/#sec-nativeerror */ \
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ThrowCompletionOr<Value> ConstructorName::call() \
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{ \
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return TRY(construct(*this)); \
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} \
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\
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/* 20.5.6.1.1 NativeError ( message ), https://tc39.es/ecma262/#sec-nativeerror */ \
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ThrowCompletionOr<Object*> ConstructorName::construct(FunctionObject& new_target) \
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{ \
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auto& vm = this->vm(); \
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auto& global_object = this->global_object(); \
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\
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auto* error = TRY(ordinary_create_from_constructor<ClassName>( \
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global_object, new_target, &GlobalObject::snake_name##_prototype)); \
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\
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if (!vm.argument(0).is_undefined()) { \
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auto message = TRY(vm.argument(0).to_string(global_object)); \
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MUST(error->create_non_enumerable_data_property_or_throw(vm.names.message, js_string(vm, message))); \
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} \
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\
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TRY(error->install_error_cause(vm.argument(1))); \
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\
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return error; \
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
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ConstructorName::ConstructorName(GlobalObject& global_object) \
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: NativeFunction(*static_cast<Object*>(global_object.error_constructor())) \
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{ \
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} \
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\
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void ConstructorName::initialize(GlobalObject& global_object) \
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{ \
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auto& vm = this->vm(); \
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NativeFunction::initialize(global_object); \
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\
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/* 20.5.6.2.1 NativeError.prototype, https://tc39.es/ecma262/#sec-nativeerror.prototype */ \
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define_direct_property(vm.names.prototype, global_object.snake_name##_prototype(), 0); \
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\
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define_direct_property(vm.names.length, Value(1), Attribute::Configurable); \
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} \
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\
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ConstructorName::~ConstructorName() { } \
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\
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/* 20.5.6.1.1 NativeError ( message [ , options ] ), https://tc39.es/ecma262/#sec-nativeerror */ \
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ThrowCompletionOr<Value> ConstructorName::call() \
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{ \
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/* 1. If NewTarget is undefined, let newTarget be the active function object; else let newTarget be NewTarget. */ \
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return TRY(construct(*this)); \
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} \
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\
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/* 20.5.6.1.1 NativeError ( message [ , options ] ), https://tc39.es/ecma262/#sec-nativeerror */ \
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ThrowCompletionOr<Object*> ConstructorName::construct(FunctionObject& new_target) \
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{ \
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auto& vm = this->vm(); \
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auto& global_object = this->global_object(); \
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\
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auto message = vm.argument(0); \
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auto options = vm.argument(1); \
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\
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/* 2. Let O be ? OrdinaryCreateFromConstructor(newTarget, "%NativeError.prototype%", « [[ErrorData]] »). */ \
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auto* error = TRY(ordinary_create_from_constructor<ClassName>(global_object, new_target, &GlobalObject::snake_name##_prototype)); \
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\
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/* 3. If message is not undefined, then */ \
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if (!message.is_undefined()) { \
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/* a. Let msg be ? ToString(message). */ \
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auto msg = TRY(message.to_string(global_object)); \
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\
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/* b. Perform ! CreateNonEnumerableDataPropertyOrThrow(O, "message", msg). */ \
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MUST(error->create_non_enumerable_data_property_or_throw(vm.names.message, js_string(vm, move(msg)))); \
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} \
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\
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/* 4. Perform ? InstallErrorCause(O, options). */ \
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TRY(error->install_error_cause(options)); \
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\
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/* 5. Return O. */ \
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return error; \
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}
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JS_ENUMERATE_NATIVE_ERRORS
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