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LibJS: Add basic Array constructor

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We only support Array() with 0 or 1 parameters so far.
This commit is contained in:
Andreas Kling 2020-04-04 22:28:21 +02:00
parent eabdbe0ee9
commit d155491122
6 changed files with 132 additions and 0 deletions
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66
Libraries/LibJS/Runtime/ArrayConstructor.cpp Normal file
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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/ArrayConstructor.h>
#include <LibJS/Runtime/Shape.h>
namespace JS {
ArrayConstructor::ArrayConstructor()
{
put("prototype", interpreter().array_prototype());
put("length", Value(1));
}
ArrayConstructor::~ArrayConstructor()
{
}
Value ArrayConstructor::call(Interpreter& interpreter)
{
if (interpreter.argument_count() == 0)
return interpreter.heap().allocate<Array>();
if (interpreter.argument_count() == 1) {
auto* array = interpreter.heap().allocate<Array>();
array->elements().resize(interpreter.argument(0).to_i32());
return array;
}
// FIXME: Handle "new Array(element0, element1, ...)"
ASSERT_NOT_REACHED();
}
Value ArrayConstructor::construct(Interpreter& interpreter)
{
return call(interpreter);
}
}