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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/Interpreter.h>
- #include <LibJS/Runtime/Array.h>
- namespace JS {
- Array::Array()
- {
- set_prototype(interpreter().array_prototype());
- put_native_property(
- "length",
- [this](Object*) {
- return Value(length());
- },
- [](Object*, Value) {
- ASSERT_NOT_REACHED();
- });
- }
- Array::~Array()
- {
- }
- Value Array::shift()
- {
- if (m_elements.size() == 0)
- return js_undefined();
- return Value(m_elements.take_first());
- }
- Value Array::pop()
- {
- if (m_elements.size() == 0)
- return js_undefined();
- return Value(m_elements.take_last());
- }
- void Array::push(Value value)
- {
- m_elements.append(value);
- }
- void Array::visit_children(Cell::Visitor& visitor)
- {
- Object::visit_children(visitor);
- for (auto& element : m_elements)
- visitor.visit(element);
- }
- Optional<Value> Array::get_own_property(const Object& this_object, const FlyString& property_name) const
- {
- bool ok;
- i32 index = property_name.to_int(ok);
- if (ok) {
- if (index >= 0 && index < length())
- return m_elements[index];
- }
- return Object::get_own_property(this_object, property_name);
- }
- bool Array::put_own_property(Object& this_object, const FlyString& property_name, Value value)
- {
- bool ok;
- i32 index = property_name.to_int(ok);
- if (ok && index >= 0) {
- if (index >= length())
- m_elements.resize(index + 1);
- m_elements[index] = value;
- return true;
- }
- return Object::put_own_property(this_object, property_name, value);
- }
- }
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