ladybird/Libraries/LibJS/Runtime/BooleanConstructor.cpp
Andreas Kling 64513f3c23 LibJS: Move native objects towards two-pass construction
To make sure that everything is set up correctly in objects before we
start adding properties to them, we split cell allocation into 3 steps:

1. Allocate a cell of appropriate size from the Heap
2. Call the C++ constructor on the cell
3. Call initialize() on the constructed object

The job of initialize() is to define all the initial properties.
Doing it in a second pass guarantees that the Object has a valid Shape
and can find its own GlobalObject.
2020-06-20 15:46:30 +02:00

61 lines
2.3 KiB
C++

/*
* Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
* 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 <LibJS/Heap/Heap.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/BooleanConstructor.h>
#include <LibJS/Runtime/BooleanObject.h>
#include <LibJS/Runtime/BooleanPrototype.h>
#include <LibJS/Runtime/GlobalObject.h>
namespace JS {
BooleanConstructor::BooleanConstructor(GlobalObject& global_object)
: NativeFunction("Boolean", *global_object.function_prototype())
{
}
void BooleanConstructor::initialize(Interpreter&, GlobalObject& global_object)
{
define_property("prototype", Value(global_object.boolean_prototype()), 0);
define_property("length", Value(1), Attribute::Configurable);
}
BooleanConstructor::~BooleanConstructor()
{
}
Value BooleanConstructor::call(Interpreter& interpreter)
{
return Value(interpreter.argument(0).to_boolean());
}
Value BooleanConstructor::construct(Interpreter& interpreter)
{
return BooleanObject::create(global_object(), interpreter.argument(0).to_boolean());
}
}