mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 11:57:34 +00:00
LibJS: Add getter/setter support
This patch adds a GetterSetterPair object. Values can now store pointers to objects of this type. These objects are created when using Object.defineProperty and providing an accessor descriptor.
This commit is contained in:
parent
a4d04cc748
commit
45dfa094e9
7 changed files with 259 additions and 12 deletions
79
Libraries/LibJS/Runtime/Accessor.h
Normal file
79
Libraries/LibJS/Runtime/Accessor.h
Normal file
|
@ -0,0 +1,79 @@
|
|||
/*
|
||||
* Copyright (c) 2020, Matthew Olsson <matthewcolsson@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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <LibJS/Runtime/Cell.h>
|
||||
#include <LibJS/Runtime/Value.h>
|
||||
|
||||
namespace JS {
|
||||
|
||||
class Accessor final : public Cell {
|
||||
public:
|
||||
static Accessor* create(Interpreter& interpreter, Value getter, Value setter)
|
||||
{
|
||||
return interpreter.heap().allocate<Accessor>(getter, setter);
|
||||
}
|
||||
|
||||
Accessor(Value getter, Value setter)
|
||||
: m_getter(getter)
|
||||
, m_setter(setter)
|
||||
{
|
||||
}
|
||||
|
||||
Value getter() { return m_getter; }
|
||||
Value setter() { return m_setter; }
|
||||
|
||||
Value call_getter(Value this_object)
|
||||
{
|
||||
if (!getter().is_function())
|
||||
return js_undefined();
|
||||
return interpreter().call(getter().as_function(), this_object);
|
||||
}
|
||||
|
||||
void call_setter(Value this_object, Value setter_value)
|
||||
{
|
||||
if (!setter().is_function())
|
||||
return;
|
||||
MarkedValueList arguments(interpreter().heap());
|
||||
arguments.values().append(setter_value);
|
||||
interpreter().call(setter().as_function(), this_object, move(arguments));
|
||||
}
|
||||
|
||||
void visit_children(Cell::Visitor& visitor) override
|
||||
{
|
||||
visitor.visit(m_getter);
|
||||
visitor.visit(m_setter);
|
||||
}
|
||||
|
||||
private:
|
||||
const char* class_name() const override { return "Accessor"; };
|
||||
|
||||
Value m_getter;
|
||||
Value m_setter;
|
||||
};
|
||||
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue