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LibJS: Add JSON.stringify

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Matthew Olsson 2020-06-10 11:01:00 -07:00 • committed by Andreas Kling
parent b4577ffcf3
commit 39576b2238
19 changed files with 678 additions and 10 deletions
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Libraries/LibJS/Runtime/JSONObject.h Normal file
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/*
* 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/Object.h>
namespace JS {
class JSONObject final : public Object {
public:
JSONObject();
virtual ~JSONObject() override;
private:
struct StringifyState {
Function* replacer_function { nullptr };
HashTable<Object*> seen_objects;
String indent { String::empty() };
String gap;
Optional<Vector<String>> property_list;
};
virtual const char* class_name() const override { return "JSONObject"; }
// Stringify helpers
static String serialize_json_property(Interpreter&, StringifyState&, const PropertyName& key, Object* holder);
static String serialize_json_object(Interpreter&, StringifyState&, Object&);
static String serialize_json_array(Interpreter&, StringifyState&, Object&);
static String quote_json_string(String);
static Value stringify(Interpreter&);
static Value parse(Interpreter&);
};
}