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path: root/devtools/shared/sourcemap/tests/unit/test_quick_sort.js
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function run_test() {
  for (var k in SOURCE_MAP_TEST_MODULE) {
    if (/^test/.test(k)) {
      SOURCE_MAP_TEST_MODULE[k](assert);
    }
  }
}


var SOURCE_MAP_TEST_MODULE =
/******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId])
/******/ 			return installedModules[moduleId].exports;
/******/
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			exports: {},
/******/ 			id: moduleId,
/******/ 			loaded: false
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.loaded = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ function(module, exports, __webpack_require__) {

	/* -*- Mode: js; js-indent-level: 2; -*- */
	/*
	 * Copyright 2011 Mozilla Foundation and contributors
	 * Licensed under the New BSD license. See LICENSE or:
	 * http://opensource.org/licenses/BSD-3-Clause
	 */
	{
	  var quickSort = __webpack_require__(1).quickSort;
	
	  function numberCompare(a, b) {
	    return a - b;
	  }
	
	  exports['test sorting sorted array'] = function (assert) {
	    var ary = [0,1,2,3,4,5,6,7,8,9];
	
	    var quickSorted = ary.slice();
	    quickSort(quickSorted, numberCompare);
	
	    assert.equal(JSON.stringify(ary),
	                 JSON.stringify(quickSorted));
	  };
	
	  exports['test sorting reverse-sorted array'] = function (assert) {
	    var ary = [9,8,7,6,5,4,3,2,1,0];
	
	    var quickSorted = ary.slice();
	    quickSort(quickSorted, numberCompare);
	
	    assert.equal(JSON.stringify(ary.sort(numberCompare)),
	                 JSON.stringify(quickSorted));
	  };
	
	  exports['test sorting unsorted array'] = function (assert) {
	    var ary = [];
	    for (var i = 0; i < 10; i++) {
	      ary.push(Math.random());
	    }
	
	    var quickSorted = ary.slice();
	    quickSort(quickSorted, numberCompare);
	
	    assert.equal(JSON.stringify(ary.sort(numberCompare)),
	                 JSON.stringify(quickSorted));
	  };
	}


/***/ },
/* 1 */
/***/ function(module, exports) {

	/* -*- Mode: js; js-indent-level: 2; -*- */
	/*
	 * Copyright 2011 Mozilla Foundation and contributors
	 * Licensed under the New BSD license. See LICENSE or:
	 * http://opensource.org/licenses/BSD-3-Clause
	 */
	{
	  // It turns out that some (most?) JavaScript engines don't self-host
	  // `Array.prototype.sort`. This makes sense because C++ will likely remain
	  // faster than JS when doing raw CPU-intensive sorting. However, when using a
	  // custom comparator function, calling back and forth between the VM's C++ and
	  // JIT'd JS is rather slow *and* loses JIT type information, resulting in
	  // worse generated code for the comparator function than would be optimal. In
	  // fact, when sorting with a comparator, these costs outweigh the benefits of
	  // sorting in C++. By using our own JS-implemented Quick Sort (below), we get
	  // a ~3500ms mean speed-up in `bench/bench.html`.
	
	  /**
	   * Swap the elements indexed by `x` and `y` in the array `ary`.
	   *
	   * @param {Array} ary
	   *        The array.
	   * @param {Number} x
	   *        The index of the first item.
	   * @param {Number} y
	   *        The index of the second item.
	   */
	  function swap(ary, x, y) {
	    var temp = ary[x];
	    ary[x] = ary[y];
	    ary[y] = temp;
	  }
	
	  /**
	   * Returns a random integer within the range `low .. high` inclusive.
	   *
	   * @param {Number} low
	   *        The lower bound on the range.
	   * @param {Number} high
	   *        The upper bound on the range.
	   */
	  function randomIntInRange(low, high) {
	    return Math.round(low + (Math.random() * (high - low)));
	  }
	
	  /**
	   * The Quick Sort algorithm.
	   *
	   * @param {Array} ary
	   *        An array to sort.
	   * @param {function} comparator
	   *        Function to use to compare two items.
	   * @param {Number} p
	   *        Start index of the array
	   * @param {Number} r
	   *        End index of the array
	   */
	  function doQuickSort(ary, comparator, p, r) {
	    // If our lower bound is less than our upper bound, we (1) partition the
	    // array into two pieces and (2) recurse on each half. If it is not, this is
	    // the empty array and our base case.
	
	    if (p < r) {
	      // (1) Partitioning.
	      //
	      // The partitioning chooses a pivot between `p` and `r` and moves all
	      // elements that are less than or equal to the pivot to the before it, and
	      // all the elements that are greater than it after it. The effect is that
	      // once partition is done, the pivot is in the exact place it will be when
	      // the array is put in sorted order, and it will not need to be moved
	      // again. This runs in O(n) time.
	
	      // Always choose a random pivot so that an input array which is reverse
	      // sorted does not cause O(n^2) running time.
	      var pivotIndex = randomIntInRange(p, r);
	      var i = p - 1;
	
	      swap(ary, pivotIndex, r);
	      var pivot = ary[r];
	
	      // Immediately after `j` is incremented in this loop, the following hold
	      // true:
	      //
	      //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
	      //
	      //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
	      for (var j = p; j < r; j++) {
	        if (comparator(ary[j], pivot) <= 0) {
	          i += 1;
	          swap(ary, i, j);
	        }
	      }
	
	      swap(ary, i + 1, j);
	      var q = i + 1;
	
	      // (2) Recurse on each half.
	
	      doQuickSort(ary, comparator, p, q - 1);
	      doQuickSort(ary, comparator, q + 1, r);
	    }
	  }
	
	  /**
	   * Sort the given array in-place with the given comparator function.
	   *
	   * @param {Array} ary
	   *        An array to sort.
	   * @param {function} comparator
	   *        Function to use to compare two items.
	   */
	  exports.quickSort = function (ary, comparator) {
	    doQuickSort(ary, comparator, 0, ary.length - 1);
	  };
	}


/***/ }
/******/ ]);
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See LICENSE or:\n * http://opensource.org/licenses/BSD-3-Clause\n */\n{\n  var quickSort = require('../lib/quick-sort').quickSort;\n\n  function numberCompare(a, b) {\n    return a - b;\n  }\n\n  exports['test sorting sorted array'] = function (assert) {\n    var ary = [0,1,2,3,4,5,6,7,8,9];\n\n    var quickSorted = ary.slice();\n    quickSort(quickSorted, numberCompare);\n\n    assert.equal(JSON.stringify(ary),\n                 JSON.stringify(quickSorted));\n  };\n\n  exports['test sorting reverse-sorted array'] = function (assert) {\n    var ary = [9,8,7,6,5,4,3,2,1,0];\n\n    var quickSorted = ary.slice();\n    quickSort(quickSorted, numberCompare);\n\n    assert.equal(JSON.stringify(ary.sort(numberCompare)),\n                 JSON.stringify(quickSorted));\n  };\n\n  exports['test sorting unsorted array'] = function (assert) {\n    var ary = [];\n    for (var i = 0; i < 10; i++) {\n      ary.push(Math.random());\n    }\n\n    var quickSorted = ary.slice();\n    quickSort(quickSorted, numberCompare);\n\n    assert.equal(JSON.stringify(ary.sort(numberCompare)),\n                 JSON.stringify(quickSorted));\n  };\n}\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./test/test-quick-sort.js\n ** module id = 0\n ** module chunks = 0\n **/","/* -*- Mode: js; js-indent-level: 2; -*- */\n/*\n * Copyright 2011 Mozilla Foundation and contributors\n * Licensed under the New BSD license. See LICENSE or:\n * http://opensource.org/licenses/BSD-3-Clause\n */\n{\n  // It turns out that some (most?) JavaScript engines don't self-host\n  // `Array.prototype.sort`. This makes sense because C++ will likely remain\n  // faster than JS when doing raw CPU-intensive sorting. However, when using a\n  // custom comparator function, calling back and forth between the VM's C++ and\n  // JIT'd JS is rather slow *and* loses JIT type information, resulting in\n  // worse generated code for the comparator function than would be optimal. In\n  // fact, when sorting with a comparator, these costs outweigh the benefits of\n  // sorting in C++. By using our own JS-implemented Quick Sort (below), we get\n  // a ~3500ms mean speed-up in `bench/bench.html`.\n\n  /**\n   * Swap the elements indexed by `x` and `y` in the array `ary`.\n   *\n   * @param {Array} ary\n   *        The array.\n   * @param {Number} x\n   *        The index of the first item.\n   * @param {Number} y\n   *        The index of the second item.\n   */\n  function swap(ary, x, y) {\n    var temp = ary[x];\n    ary[x] = ary[y];\n    ary[y] = temp;\n  }\n\n  /**\n   * Returns a random integer within the range `low .. high` inclusive.\n   *\n   * @param {Number} low\n   *        The lower bound on the range.\n   * @param {Number} high\n   *        The upper bound on the range.\n   */\n  function randomIntInRange(low, high) {\n    return Math.round(low + (Math.random() * (high - low)));\n  }\n\n  /**\n   * The Quick Sort algorithm.\n   *\n   * @param {Array} ary\n   *        An array to sort.\n   * @param {function} comparator\n   *        Function to use to compare two items.\n   * @param {Number} p\n   *        Start index of the array\n   * @param {Number} r\n   *        End index of the array\n   */\n  function doQuickSort(ary, comparator, p, r) {\n    // If our lower bound is less than our upper bound, we (1) partition the\n    // array into two pieces and (2) recurse on each half. If it is not, this is\n    // the empty array and our base case.\n\n    if (p < r) {\n      // (1) Partitioning.\n      //\n      // The partitioning chooses a pivot between `p` and `r` and moves all\n      // elements that are less than or equal to the pivot to the before it, and\n      // all the elements that are greater than it after it. The effect is that\n      // once partition is done, the pivot is in the exact place it will be when\n      // the array is put in sorted order, and it will not need to be moved\n      // again. This runs in O(n) time.\n\n      // Always choose a random pivot so that an input array which is reverse\n      // sorted does not cause O(n^2) running time.\n      var pivotIndex = randomIntInRange(p, r);\n      var i = p - 1;\n\n      swap(ary, pivotIndex, r);\n      var pivot = ary[r];\n\n      // Immediately after `j` is incremented in this loop, the following hold\n      // true:\n      //\n      //   * Every element in `ary[p .. i]` is less than or equal to the pivot.\n      //\n      //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.\n      for (var j = p; j < r; j++) {\n        if (comparator(ary[j], pivot) <= 0) {\n          i += 1;\n          swap(ary, i, j);\n        }\n      }\n\n      swap(ary, i + 1, j);\n      var q = i + 1;\n\n      // (2) Recurse on each half.\n\n      doQuickSort(ary, comparator, p, q - 1);\n      doQuickSort(ary, comparator, q + 1, r);\n    }\n  }\n\n  /**\n   * Sort the given array in-place with the given comparator function.\n   *\n   * @param {Array} ary\n   *        An array to sort.\n   * @param {function} comparator\n   *        Function to use to compare two items.\n   */\n  exports.quickSort = function (ary, comparator) {\n    doQuickSort(ary, comparator, 0, ary.length - 1);\n  };\n}\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./lib/quick-sort.js\n ** module id = 1\n ** module chunks = 0\n **/"],"sourceRoot":""}