mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-31 13:20:59 +00:00
90ba0145f6
Objects can have both named and indexed properties. Previously we kept all property names as strings. This patch separates named and indexed properties and splits them between Object::m_storage and m_elements. This allows us to do much faster array-style access using numeric indices. It also makes the Array class much less special, since all Objects now have number-indexed storage. :^)
78 lines
2.4 KiB
C++
78 lines
2.4 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/Interpreter.h>
|
|
#include <LibJS/Runtime/Array.h>
|
|
#include <LibJS/Runtime/Error.h>
|
|
|
|
namespace JS {
|
|
|
|
Array::Array()
|
|
{
|
|
set_prototype(interpreter().array_prototype());
|
|
put_native_property("length", length_getter, length_setter);
|
|
}
|
|
|
|
Array::~Array()
|
|
{
|
|
}
|
|
|
|
Value Array::shift()
|
|
{
|
|
if (elements().size() == 0)
|
|
return js_undefined();
|
|
return Value(elements().take_first());
|
|
}
|
|
|
|
Value Array::pop()
|
|
{
|
|
if (elements().size() == 0)
|
|
return js_undefined();
|
|
return Value(elements().take_last());
|
|
}
|
|
|
|
void Array::push(Value value)
|
|
{
|
|
elements().append(value);
|
|
}
|
|
|
|
Value Array::length_getter(Interpreter& interpreter)
|
|
{
|
|
auto* this_object = interpreter.this_value().to_object(interpreter.heap());
|
|
if (!this_object)
|
|
return {};
|
|
if (!this_object->is_array())
|
|
return interpreter.throw_exception<Error>("TypeError", "Not an array");
|
|
return Value(static_cast<const Array*>(this_object)->length());
|
|
}
|
|
|
|
void Array::length_setter(Interpreter&, Value)
|
|
{
|
|
ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
}
|