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LibJS: Convert TypedArrayConstructor functions to ThrowCompletionOr
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commit
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2 changed files with 29 additions and 37 deletions
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@ -30,10 +30,10 @@ void TypedArrayConstructor::initialize(GlobalObject& global_object)
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define_direct_property(vm.names.prototype, global_object.typed_array_prototype(), 0);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_old_native_function(vm.names.from, from, 1, attr);
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define_old_native_function(vm.names.of, of, 0, attr);
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define_native_function(vm.names.from, from, 1, attr);
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define_native_function(vm.names.of, of, 0, attr);
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define_old_native_accessor(*vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
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define_native_accessor(*vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
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define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
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}
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@ -55,92 +55,84 @@ ThrowCompletionOr<Object*> TypedArrayConstructor::construct(FunctionObject&)
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}
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// 23.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] ), https://tc39.es/ecma262/#sec-%typedarray%.from
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JS_DEFINE_OLD_NATIVE_FUNCTION(TypedArrayConstructor::from)
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JS_DEFINE_NATIVE_FUNCTION(TypedArrayConstructor::from)
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{
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auto constructor = vm.this_value(global_object);
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if (!constructor.is_constructor()) {
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vm.throw_exception<TypeError>(global_object, ErrorType::NotAConstructor, constructor.to_string_without_side_effects());
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return {};
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}
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if (!constructor.is_constructor())
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return vm.throw_completion<TypeError>(global_object, ErrorType::NotAConstructor, constructor.to_string_without_side_effects());
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FunctionObject* map_fn = nullptr;
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if (!vm.argument(1).is_undefined()) {
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auto callback = vm.argument(1);
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if (!callback.is_function()) {
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vm.throw_exception<TypeError>(global_object, ErrorType::NotAFunction, callback.to_string_without_side_effects());
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return {};
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}
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if (!callback.is_function())
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return vm.throw_completion<TypeError>(global_object, ErrorType::NotAFunction, callback.to_string_without_side_effects());
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map_fn = &callback.as_function();
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}
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auto source = vm.argument(0);
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auto this_arg = vm.argument(2);
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auto using_iterator = TRY_OR_DISCARD(source.get_method(global_object, *vm.well_known_symbol_iterator()));
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auto using_iterator = TRY(source.get_method(global_object, *vm.well_known_symbol_iterator()));
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if (using_iterator) {
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auto values = TRY_OR_DISCARD(iterable_to_list(global_object, source, using_iterator));
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auto values = TRY(iterable_to_list(global_object, source, using_iterator));
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MarkedValueList arguments(vm.heap());
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arguments.empend(values.size());
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auto target_object = TRY_OR_DISCARD(typed_array_create(global_object, constructor.as_function(), move(arguments)));
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auto target_object = TRY(typed_array_create(global_object, constructor.as_function(), move(arguments)));
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for (size_t k = 0; k < values.size(); ++k) {
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auto k_value = values[k];
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Value mapped_value;
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if (map_fn)
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mapped_value = TRY_OR_DISCARD(vm.call(*map_fn, this_arg, k_value, Value(k)));
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mapped_value = TRY(vm.call(*map_fn, this_arg, k_value, Value(k)));
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else
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mapped_value = k_value;
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TRY_OR_DISCARD(target_object->set(k, mapped_value, Object::ShouldThrowExceptions::Yes));
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TRY(target_object->set(k, mapped_value, Object::ShouldThrowExceptions::Yes));
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}
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return target_object;
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}
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auto array_like = MUST(source.to_object(global_object));
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auto length = TRY_OR_DISCARD(length_of_array_like(global_object, *array_like));
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auto length = TRY(length_of_array_like(global_object, *array_like));
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MarkedValueList arguments(vm.heap());
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arguments.empend(length);
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auto target_object = TRY_OR_DISCARD(typed_array_create(global_object, constructor.as_function(), move(arguments)));
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auto target_object = TRY(typed_array_create(global_object, constructor.as_function(), move(arguments)));
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for (size_t k = 0; k < length; ++k) {
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auto k_value = TRY_OR_DISCARD(array_like->get(k));
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auto k_value = TRY(array_like->get(k));
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Value mapped_value;
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if (map_fn)
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mapped_value = TRY_OR_DISCARD(vm.call(*map_fn, this_arg, k_value, Value(k)));
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mapped_value = TRY(vm.call(*map_fn, this_arg, k_value, Value(k)));
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else
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mapped_value = k_value;
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TRY_OR_DISCARD(target_object->set(k, mapped_value, Object::ShouldThrowExceptions::Yes));
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TRY(target_object->set(k, mapped_value, Object::ShouldThrowExceptions::Yes));
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}
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return target_object;
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}
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// 23.2.2.2 %TypedArray%.of ( ...items ), https://tc39.es/ecma262/#sec-%typedarray%.of
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JS_DEFINE_OLD_NATIVE_FUNCTION(TypedArrayConstructor::of)
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JS_DEFINE_NATIVE_FUNCTION(TypedArrayConstructor::of)
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{
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auto length = vm.argument_count();
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auto constructor = vm.this_value(global_object);
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if (!constructor.is_constructor()) {
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vm.throw_exception<TypeError>(global_object, ErrorType::NotAConstructor, constructor.to_string_without_side_effects());
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return {};
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}
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if (!constructor.is_constructor())
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return vm.throw_completion<TypeError>(global_object, ErrorType::NotAConstructor, constructor.to_string_without_side_effects());
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MarkedValueList arguments(vm.heap());
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arguments.append(Value(length));
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auto new_object = TRY_OR_DISCARD(typed_array_create(global_object, constructor.as_function(), move(arguments)));
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auto new_object = TRY(typed_array_create(global_object, constructor.as_function(), move(arguments)));
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for (size_t k = 0; k < length; ++k) {
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auto success = TRY_OR_DISCARD(new_object->set(k, vm.argument(k), Object::ShouldThrowExceptions::Yes));
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if (!success) {
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vm.throw_exception<TypeError>(global_object, ErrorType::TypedArrayFailedSettingIndex, k);
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return {};
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}
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auto success = TRY(new_object->set(k, vm.argument(k), Object::ShouldThrowExceptions::Yes));
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if (!success)
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return vm.throw_completion<TypeError>(global_object, ErrorType::TypedArrayFailedSettingIndex, k);
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}
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return new_object;
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}
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// 23.2.2.4 get %TypedArray% [ @@species ], https://tc39.es/ecma262/#sec-get-%typedarray%-@@species
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JS_DEFINE_OLD_NATIVE_FUNCTION(TypedArrayConstructor::symbol_species_getter)
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JS_DEFINE_NATIVE_FUNCTION(TypedArrayConstructor::symbol_species_getter)
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{
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return vm.this_value(global_object);
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}
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@ -25,9 +25,9 @@ public:
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private:
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virtual bool has_constructor() const override { return true; }
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JS_DECLARE_OLD_NATIVE_FUNCTION(from);
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JS_DECLARE_OLD_NATIVE_FUNCTION(of);
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JS_DECLARE_OLD_NATIVE_FUNCTION(symbol_species_getter);
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JS_DECLARE_NATIVE_FUNCTION(from);
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JS_DECLARE_NATIVE_FUNCTION(of);
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JS_DECLARE_NATIVE_FUNCTION(symbol_species_getter);
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};
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}
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