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https://github.com/RGBCube/serenity
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9c8d390682
This changes Accessor's m_{getter,setter} from Value to Function* which
seems like a better API to me - a getter/setter must either be a
function or missing, and the creation of an accessor with other values
must be prevented by the parser and Object.defineProperty() anyway.
Also add Accessor::set_{getter,setter}() so we can reuse an already
created accessor when evaluating an ObjectExpression with getter/setter
shorthand syntax.
82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
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* Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <LibJS/Runtime/Function.h>
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namespace JS {
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class Accessor final : public Cell {
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public:
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static Accessor* create(Interpreter& interpreter, Function* getter, Function* setter)
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{
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return interpreter.heap().allocate<Accessor>(getter, setter);
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}
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Accessor(Function* getter, Function* setter)
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: m_getter(getter)
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, m_setter(setter)
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{
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}
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Function* getter() const { return m_getter; }
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void set_getter(Function* getter) { m_getter = getter; }
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Function* setter() const { return m_setter; }
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void set_setter(Function* setter) { m_setter = setter; }
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Value call_getter(Value this_value)
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{
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if (!m_getter)
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return js_undefined();
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return interpreter().call(*m_getter, this_value);
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}
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void call_setter(Value this_value, Value setter_value)
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{
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if (!m_setter)
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return;
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MarkedValueList arguments(interpreter().heap());
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arguments.values().append(setter_value);
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interpreter().call(*m_setter, this_value, move(arguments));
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}
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void visit_children(Cell::Visitor& visitor) override
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{
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visitor.visit(m_getter);
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visitor.visit(m_setter);
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}
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private:
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const char* class_name() const override { return "Accessor"; };
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Function* m_getter { nullptr };
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Function* m_setter { nullptr };
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};
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}
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