mirror of https://github.com/vitalif/phantomjs
140 lines
4.5 KiB
JavaScript
140 lines
4.5 KiB
JavaScript
/*jslint sloppy: true, nomen: true */
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/*
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This file is part of the PhantomJS project from Ofi Labs.
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Copyright (C) 2011 Ivan De Marino <ivan.de.marino@gmail.com>
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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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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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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
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ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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var REPL = REPL || {};
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(function () {
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/**
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* Cache to hold completions
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*/
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var _cache = {};
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/**
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* Return the Completions of the Object, applying the prefix
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*
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* @param obj Object to get completions of
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* @param prefix Limit completions to the one starting with this prefix
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*/
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REPL._getCompletions = function (obj, prefix) {
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var completions = [];
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if (typeof prefix !== "string") {
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prefix = "";
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} else {
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prefix = prefix.trim();
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}
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try {
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// Try to get `QObject` inherited class's name (throws exception if not
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// inherited from `QObject`)
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var className = _repl._getClassName(obj);
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// Initialize completions for this class as needed
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if (null == _cache[className]) {
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_cache[className] = _repl._enumerateCompletions(obj);
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}
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var key = className;
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if ("" !== prefix) {
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key = "-" + prefix;
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if (null == _cache[key]) {
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// Filter out completions
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var regexp = new RegExp("^" + prefix);
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_cache[key] = _cache[className].filter(function (elm) {
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return regexp.test(elm);
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});
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}
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}
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completions = _cache[key];
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} catch (e) {
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try {
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Object.keys(obj).forEach(function (k) {
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if (obj.hasOwnProperty(k) && k.indexOf(prefix) === 0) {
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completions.push(k);
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}
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});
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completions.sort();
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} catch (e) {
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// Ignore...
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}
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}
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return completions;
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};
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/**
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* This utility function is used to pretty-print the result of an expression.
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* @see https://developer.mozilla.org/En/Using_native_JSON#The_replacer_parameter
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*
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* @param k Property key name - empty string if it's the object being stringified
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* @param v Property value
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*/
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REPL._expResStringifyReplacer = function (k, v) {
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var i, iarr,
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mock = {},
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funcToStr = "[Function]";
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// If the result of the last evaluated expression is an object
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if (k === "" //< only first level of recursive calls
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&& REPL._lastEval) {
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// Get all the completions for the object we are going to pretty-print
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iarr = REPL._getCompletions(REPL._lastEval);
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// nothing to enumerate
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if (iarr.length == 0)
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return v;
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for (i in iarr) {
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if (typeof(v[iarr[i]]) !== "undefined") {
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// add a reference to this "real" property into the mock object
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mock[iarr[i]] = v[iarr[i]];
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} else {
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// add a "function" for this "shimmed" property into the mock object
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mock[iarr[i]] = funcToStr;
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}
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}
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return mock;
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}
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// Else, just act normally
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if (typeof(v) === "function") {
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// Normally functions are ignored by JSON.stringify
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return funcToStr;
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}
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return v;
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};
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})();
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