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- /*
- * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include <AK/Function.h>
- #include <LibJS/Heap/Heap.h>
- #include <LibJS/Interpreter.h>
- #include <LibJS/Runtime/Array.h>
- #include <LibJS/Runtime/Error.h>
- #include <LibJS/Runtime/GlobalObject.h>
- #include <LibJS/Runtime/ObjectConstructor.h>
- #include <LibJS/Runtime/Shape.h>
- namespace JS {
- ObjectConstructor::ObjectConstructor()
- : NativeFunction("Object", *interpreter().global_object().function_prototype())
- {
- put("prototype", interpreter().global_object().object_prototype(), 0);
- put("length", Value(1), Attribute::Configurable);
- u8 attr = Attribute::Writable | Attribute::Configurable;
- put_native_function("defineProperty", define_property, 3, attr);
- put_native_function("is", is, 2, attr);
- put_native_function("getOwnPropertyDescriptor", get_own_property_descriptor, 2, attr);
- put_native_function("getOwnPropertyNames", get_own_property_names, 1, attr);
- put_native_function("getPrototypeOf", get_prototype_of, 1, attr);
- put_native_function("setPrototypeOf", set_prototype_of, 2, attr);
- put_native_function("keys", keys, 1, attr);
- put_native_function("values", values, 1, attr);
- put_native_function("entries", entries, 1, attr);
- }
- ObjectConstructor::~ObjectConstructor()
- {
- }
- Value ObjectConstructor::call(Interpreter& interpreter)
- {
- return Object::create_empty(interpreter, interpreter.global_object());
- }
- Value ObjectConstructor::construct(Interpreter& interpreter)
- {
- return call(interpreter);
- }
- Value ObjectConstructor::get_own_property_names(Interpreter& interpreter)
- {
- if (!interpreter.argument_count())
- return {};
- auto* object = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- auto* result = Array::create(interpreter.global_object());
- for (size_t i = 0; i < object->elements().size(); ++i) {
- if (!object->elements()[i].is_empty())
- result->elements().append(js_string(interpreter, String::number(i)));
- }
- for (auto& it : object->shape().property_table_ordered()) {
- result->elements().append(js_string(interpreter, it.key));
- }
- return result;
- }
- Value ObjectConstructor::get_prototype_of(Interpreter& interpreter)
- {
- if (!interpreter.argument_count())
- return {};
- auto* object = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- return object->prototype();
- }
- Value ObjectConstructor::set_prototype_of(Interpreter& interpreter)
- {
- if (interpreter.argument_count() < 2)
- return {};
- auto* object = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- object->set_prototype(&const_cast<Object&>(interpreter.argument(1).as_object()));
- return {};
- }
- Value ObjectConstructor::get_own_property_descriptor(Interpreter& interpreter)
- {
- auto* object = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- auto property_key = interpreter.argument(1).to_string(interpreter);
- if (interpreter.exception())
- return {};
- return object->get_own_property_descriptor(property_key);
- }
- Value ObjectConstructor::define_property(Interpreter& interpreter)
- {
- if (!interpreter.argument(0).is_object())
- return interpreter.throw_exception<TypeError>("Object argument is not an object");
- if (!interpreter.argument(2).is_object())
- return interpreter.throw_exception<TypeError>("Descriptor argument is not an object");
- auto& object = interpreter.argument(0).as_object();
- auto property_key = interpreter.argument(1).to_string(interpreter);
- if (interpreter.exception())
- return {};
- auto& descriptor = interpreter.argument(2).as_object();
- object.define_property(property_key, descriptor);
- return &object;
- }
- Value ObjectConstructor::is(Interpreter& interpreter)
- {
- return Value(same_value(interpreter, interpreter.argument(0), interpreter.argument(1)));
- }
- Value ObjectConstructor::keys(Interpreter& interpreter)
- {
- if (!interpreter.argument_count())
- return interpreter.throw_exception<TypeError>("Can't convert undefined to object");
- auto* obj_arg = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- return obj_arg->get_own_properties(*obj_arg, GetOwnPropertyMode::Key, Attribute::Enumerable);
- }
- Value ObjectConstructor::values(Interpreter& interpreter)
- {
- if (!interpreter.argument_count())
- return interpreter.throw_exception<TypeError>("Can't convert undefined to object");
- auto* obj_arg = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- return obj_arg->get_own_properties(*obj_arg, GetOwnPropertyMode::Value, Attribute::Enumerable);
- }
- Value ObjectConstructor::entries(Interpreter& interpreter)
- {
- if (!interpreter.argument_count())
- return interpreter.throw_exception<TypeError>("Can't convert undefined to object");
- auto* obj_arg = interpreter.argument(0).to_object(interpreter);
- if (interpreter.exception())
- return {};
- return obj_arg->get_own_properties(*obj_arg, GetOwnPropertyMode::KeyAndValue, Attribute::Enumerable);
- }
- }
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