mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-04-26 06:18:59 +00:00
bbd592cb6c
The output of FunctionPrototype::to_string is now more in line with the output in Firefox. The builtin constructors have been extended to include their function name in the output.
143 lines
6 KiB
C++
143 lines
6 KiB
C++
/*
|
|
* 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/ObjectConstructor.h>
|
|
#include <LibJS/Runtime/Shape.h>
|
|
|
|
namespace JS {
|
|
|
|
ObjectConstructor::ObjectConstructor()
|
|
: NativeFunction("Object")
|
|
{
|
|
put("prototype", interpreter().object_prototype());
|
|
|
|
put_native_function("defineProperty", define_property, 3);
|
|
put_native_function("getOwnPropertyDescriptor", get_own_property_descriptor, 2);
|
|
put_native_function("getOwnPropertyNames", get_own_property_names, 1);
|
|
put_native_function("getPrototypeOf", get_prototype_of, 1);
|
|
put_native_function("setPrototypeOf", set_prototype_of, 2);
|
|
}
|
|
|
|
ObjectConstructor::~ObjectConstructor()
|
|
{
|
|
}
|
|
|
|
Value ObjectConstructor::call(Interpreter& interpreter)
|
|
{
|
|
return interpreter.heap().allocate<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.heap());
|
|
if (interpreter.exception())
|
|
return {};
|
|
auto* result = interpreter.heap().allocate<Array>();
|
|
for (size_t i = 0; i < object->elements().size(); ++i) {
|
|
if (!object->elements()[i].is_empty())
|
|
result->push(js_string(interpreter, String::number(i)));
|
|
}
|
|
|
|
for (auto& it : object->shape().property_table())
|
|
result->push(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.heap());
|
|
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.heap());
|
|
if (interpreter.exception())
|
|
return {};
|
|
object->set_prototype(&const_cast<Object&>(interpreter.argument(1).as_object()));
|
|
return {};
|
|
}
|
|
|
|
Value ObjectConstructor::get_own_property_descriptor(Interpreter& interpreter)
|
|
{
|
|
if (interpreter.argument_count() < 2)
|
|
return interpreter.throw_exception<TypeError>("Object.getOwnPropertyDescriptor() needs 2 arguments");
|
|
if (!interpreter.argument(0).is_object())
|
|
return interpreter.throw_exception<TypeError>("Object argument is not an object");
|
|
auto& object = interpreter.argument(0).as_object();
|
|
auto metadata = object.shape().lookup(interpreter.argument(1).to_string());
|
|
if (!metadata.has_value())
|
|
return js_undefined();
|
|
auto* descriptor = interpreter.heap().allocate<Object>();
|
|
descriptor->put("configurable", Value(!!(metadata.value().attributes & Attribute::Configurable)));
|
|
descriptor->put("enumerable", Value(!!(metadata.value().attributes & Attribute::Enumerable)));
|
|
descriptor->put("writable", Value(!!(metadata.value().attributes & Attribute::Writable)));
|
|
descriptor->put("value", object.get(interpreter.argument(1).to_string()).value_or(js_undefined()));
|
|
return descriptor;
|
|
}
|
|
|
|
Value ObjectConstructor::define_property(Interpreter& interpreter)
|
|
{
|
|
if (interpreter.argument_count() < 3)
|
|
return interpreter.throw_exception<TypeError>("Object.defineProperty() needs 3 arguments");
|
|
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& descriptor = interpreter.argument(2).as_object();
|
|
|
|
Value value = descriptor.get("value").value_or(Value());
|
|
u8 configurable = descriptor.get("configurable").value_or(Value(false)).to_boolean() * Attribute::Configurable;
|
|
u8 enumerable = descriptor.get("enumerable").value_or(Value(false)).to_boolean() * Attribute::Enumerable;
|
|
u8 writable = descriptor.get("writable").value_or(Value(false)).to_boolean() * Attribute::Writable;
|
|
u8 attributes = configurable | enumerable | writable;
|
|
|
|
dbg() << "Defining new property " << interpreter.argument(1).to_string() << " with descriptor { " << configurable << ", " << enumerable << ", " << writable << ", attributes=" << attributes << " }";
|
|
|
|
object.put_own_property(object, interpreter.argument(1).to_string(), attributes, value, PutOwnPropertyMode::DefineProperty);
|
|
return &object;
|
|
}
|
|
|
|
}
|