Demo/bin/Debug/front_end/script_formatter_worker/JavaScriptFormatter.js

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/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * 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
 * OWNER 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.
 */

/**
 * @constructor
 * @param {string} content
 * @param {!FormatterWorker.JavaScriptFormattedContentBuilder} builder
 */
FormatterWorker.JavaScriptFormatter = function(content, builder)
{
    this._content = content;
    this._builder = builder;
    this._tokenizer = new FormatterWorker.AcornTokenizer(this._content);
}

FormatterWorker.JavaScriptFormatter.prototype = {
    format: function()
    {
        var ast = acorn.parse(this._content, { ranges: false, ecmaVersion: 6 });
        var walker = new FormatterWorker.ESTreeWalker(this._beforeVisit.bind(this), this._afterVisit.bind(this));
        walker.walk(ast);
    },

    /**
     * @param {?Acorn.TokenOrComment} token
     * @param {string} format
     */
    _push: function(token, format)
    {
        for (var i = 0; i < format.length; ++i) {
            if (format[i] === "s")
                this._builder.addSpace();
            else if (format[i] === "n")