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https://github.com/LadybirdBrowser/ladybird.git
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2c5b9fb8f9
This patch adds String.prototype.charAt() to demonstrate that prototype property lookup works, and that you can call a prototype function on an object, and it will do what you expect. :^)
52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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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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#include <LibJS/Heap.h>
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#include <LibJS/PrimitiveString.h>
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#include <LibJS/StringObject.h>
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#include <LibJS/StringPrototype.h>
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#include <LibJS/Value.h>
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namespace JS {
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StringObject::StringObject(PrimitiveString* string)
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: m_string(string)
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{
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set_prototype(heap().allocate<StringPrototype>());
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put("length", Value(static_cast<i32>(m_string->string().length())));
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}
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StringObject::~StringObject()
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{
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}
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void StringObject::visit_children(Cell::Visitor& visitor)
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{
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Object::visit_children(visitor);
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visitor.visit(m_string);
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}
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}
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