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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/String.h>
#include <LibJS/Heap.h>
#include <LibJS/Interpreter.h>
#include <LibJS/NativeFunction.h>
#include <LibJS/Object.h>
#include <LibJS/Value.h>
namespace JS {
Object::Object()
{
set_prototype(interpreter().object_prototype());
}
Object::~Object()
{
}
Value Object::get(String property_name) const
{
const Object* object = this;
while (object) {
auto value = object->m_properties.get(property_name);
if (value.has_value())
return value.value();
object = object->prototype();
}
return js_undefined();
}
void Object::put(String property_name, Value value)
{
m_properties.set(property_name, move(value));
}
void Object::put_native_function(String property_name, AK::Function<Value(Interpreter&, Vector<Value>)> native_function)
{
put(property_name, heap().allocate<NativeFunction>(move(native_function)));
}
void Object::visit_children(Cell::Visitor& visitor)
{
Cell::visit_children(visitor);
if (m_prototype)
visitor.visit(m_prototype);
for (auto& it : m_properties)
visitor.visit(it.value);
}
bool Object::has_own_property(const String& property_name) const
{
return m_properties.get(property_name).has_value();
}
}
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