274 lines
22 KiB
JavaScript
274 lines
22 KiB
JavaScript
function run_test() {
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for (var k in SOURCE_MAP_TEST_MODULE) {
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if (/^test/.test(k)) {
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SOURCE_MAP_TEST_MODULE[k](assert);
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}
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}
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}
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var SOURCE_MAP_TEST_MODULE =
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/******/ (function(modules) { // webpackBootstrap
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/******/ // The module cache
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/******/ var installedModules = {};
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/******/
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/******/ // The require function
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/******/ function __webpack_require__(moduleId) {
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/******/
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/******/ // Check if module is in cache
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/******/ if(installedModules[moduleId])
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/******/ return installedModules[moduleId].exports;
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/******/
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/******/ // Create a new module (and put it into the cache)
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/******/ var module = installedModules[moduleId] = {
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/******/ exports: {},
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/******/ id: moduleId,
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/******/ loaded: false
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/******/ };
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/******/
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/******/ // Execute the module function
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/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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/******/
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/******/ // Flag the module as loaded
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/******/ module.loaded = true;
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/******/
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/******/ // Return the exports of the module
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/******/ return module.exports;
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/******/ }
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/******/
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/******/
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/******/ // expose the modules object (__webpack_modules__)
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/******/ __webpack_require__.m = modules;
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/******/
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/******/ // expose the module cache
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/******/ __webpack_require__.c = installedModules;
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/******/
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/******/ // __webpack_public_path__
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/******/ __webpack_require__.p = "";
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/******/
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/******/ // Load entry module and return exports
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/******/ return __webpack_require__(0);
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/******/ })
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/************************************************************************/
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/******/ ([
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/* 0 */
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/***/ (function(module, exports, __webpack_require__) {
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/* -*- Mode: js; js-indent-level: 2; -*- */
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/*
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* Copyright 2011 Mozilla Foundation and contributors
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* Licensed under the New BSD license. See LICENSE or:
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* http://opensource.org/licenses/BSD-3-Clause
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*/
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var binarySearch = __webpack_require__(1);
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function numberCompare(a, b) {
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return a - b;
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}
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exports['test too high with default (glb) bias'] = function (assert) {
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var needle = 30;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.doesNotThrow(function () {
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binarySearch.search(needle, haystack, numberCompare);
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});
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assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare)], 20);
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};
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exports['test too low with default (glb) bias'] = function (assert) {
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var needle = 1;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.doesNotThrow(function () {
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binarySearch.search(needle, haystack, numberCompare);
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});
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assert.equal(binarySearch.search(needle, haystack, numberCompare), -1);
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};
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exports['test too high with lub bias'] = function (assert) {
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var needle = 30;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.doesNotThrow(function () {
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binarySearch.search(needle, haystack, numberCompare);
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});
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assert.equal(binarySearch.search(needle, haystack, numberCompare,
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binarySearch.LEAST_UPPER_BOUND), -1);
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};
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exports['test too low with lub bias'] = function (assert) {
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var needle = 1;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.doesNotThrow(function () {
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binarySearch.search(needle, haystack, numberCompare);
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});
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assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare,
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binarySearch.LEAST_UPPER_BOUND)], 2);
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};
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exports['test exact search'] = function (assert) {
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var needle = 4;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare)], 4);
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};
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exports['test fuzzy search with default (glb) bias'] = function (assert) {
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var needle = 19;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare)], 18);
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};
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exports['test fuzzy search with lub bias'] = function (assert) {
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var needle = 19;
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var haystack = [2,4,6,8,10,12,14,16,18,20];
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assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare,
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binarySearch.LEAST_UPPER_BOUND)], 20);
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};
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exports['test multiple matches'] = function (assert) {
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var needle = 5;
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var haystack = [1, 1, 2, 5, 5, 5, 13, 21];
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assert.equal(binarySearch.search(needle, haystack, numberCompare,
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binarySearch.LEAST_UPPER_BOUND), 3);
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};
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exports['test multiple matches at the beginning'] = function (assert) {
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var needle = 1;
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var haystack = [1, 1, 2, 5, 5, 5, 13, 21];
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assert.equal(binarySearch.search(needle, haystack, numberCompare,
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binarySearch.LEAST_UPPER_BOUND), 0);
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};
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/***/ }),
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/* 1 */
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/***/ (function(module, exports) {
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/* -*- Mode: js; js-indent-level: 2; -*- */
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/*
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* Copyright 2011 Mozilla Foundation and contributors
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* Licensed under the New BSD license. See LICENSE or:
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* http://opensource.org/licenses/BSD-3-Clause
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*/
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exports.GREATEST_LOWER_BOUND = 1;
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exports.LEAST_UPPER_BOUND = 2;
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/**
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* Recursive implementation of binary search.
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*
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* @param aLow Indices here and lower do not contain the needle.
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* @param aHigh Indices here and higher do not contain the needle.
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* @param aNeedle The element being searched for.
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* @param aHaystack The non-empty array being searched.
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* @param aCompare Function which takes two elements and returns -1, 0, or 1.
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* @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
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* 'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
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* closest element that is smaller than or greater than the one we are
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* searching for, respectively, if the exact element cannot be found.
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*/
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function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
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// This function terminates when one of the following is true:
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//
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// 1. We find the exact element we are looking for.
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//
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// 2. We did not find the exact element, but we can return the index of
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// the next-closest element.
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//
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// 3. We did not find the exact element, and there is no next-closest
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// element than the one we are searching for, so we return -1.
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var mid = Math.floor((aHigh - aLow) / 2) + aLow;
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var cmp = aCompare(aNeedle, aHaystack[mid], true);
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if (cmp === 0) {
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// Found the element we are looking for.
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return mid;
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}
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else if (cmp > 0) {
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// Our needle is greater than aHaystack[mid].
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if (aHigh - mid > 1) {
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// The element is in the upper half.
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return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
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}
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// The exact needle element was not found in this haystack. Determine if
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// we are in termination case (3) or (2) and return the appropriate thing.
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if (aBias == exports.LEAST_UPPER_BOUND) {
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return aHigh < aHaystack.length ? aHigh : -1;
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} else {
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return mid;
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}
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}
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else {
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// Our needle is less than aHaystack[mid].
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if (mid - aLow > 1) {
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// The element is in the lower half.
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return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
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}
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// we are in termination case (3) or (2) and return the appropriate thing.
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if (aBias == exports.LEAST_UPPER_BOUND) {
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return mid;
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} else {
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return aLow < 0 ? -1 : aLow;
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}
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}
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}
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/**
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* This is an implementation of binary search which will always try and return
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* the index of the closest element if there is no exact hit. This is because
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* mappings between original and generated line/col pairs are single points,
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* and there is an implicit region between each of them, so a miss just means
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* that you aren't on the very start of a region.
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*
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* @param aNeedle The element you are looking for.
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* @param aHaystack The array that is being searched.
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* @param aCompare A function which takes the needle and an element in the
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* array and returns -1, 0, or 1 depending on whether the needle is less
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* than, equal to, or greater than the element, respectively.
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* @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
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* 'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
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* closest element that is smaller than or greater than the one we are
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* searching for, respectively, if the exact element cannot be found.
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* Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
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*/
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exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
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if (aHaystack.length === 0) {
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return -1;
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}
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var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
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aCompare, aBias || exports.GREATEST_LOWER_BOUND);
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if (index < 0) {
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return -1;
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}
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// We have found either the exact element, or the next-closest element than
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// the one we are searching for. However, there may be more than one such
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// element. Make sure we always return the smallest of these.
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while (index - 1 >= 0) {
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if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
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break;
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}
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--index;
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}
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return index;
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};
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/***/ })
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/******/ ]);
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//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["webpack:///webpack/bootstrap eda8b40035acf4433031","webpack:///./test/test-binary-search.js","webpack:///./lib/binary-search.js"],"names":[],"mappings":";;;;;;;;;;;AAAA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,uBAAe;AACf;AACA;AACA;;AAEA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;;;AAGA;AACA;;AAEA;AACA;;AAEA;AACA;;AAEA;AACA;;;;;;;ACtCA,iBAAgB,oBAAoB;AACpC;AACA;AACA;AACA;AACA;;AAEA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,IAAG;;AAEH;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,IAAG;;AAEH;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,IAAG;;AAEH;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,IAAG;;AAEH;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;;;;;;AC/FA,iBAAgB,oBAAoB;AACp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file":"test_binary_search.js","sourcesContent":[" \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap eda8b40035acf4433031","/* -*- 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\nvar binarySearch = require('../lib/binary-search');\n\nfunction numberCompare(a, b) {\n  return a - b;\n}\n\nexports['test too high with default (glb) bias'] = function (assert) {\n  var needle = 30;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.doesNotThrow(function () {\n    binarySearch.search(needle, haystack, numberCompare);\n  });\n\n  assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare)], 20);\n};\n\nexports['test too low with default (glb) bias'] = function (assert) {\n  var needle = 1;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.doesNotThrow(function () {\n    binarySearch.search(needle, haystack, numberCompare);\n  });\n\n  assert.equal(binarySearch.search(needle, haystack, numberCompare), -1);\n};\n\nexports['test too high with lub bias'] = function (assert) {\n  var needle = 30;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.doesNotThrow(function () {\n    binarySearch.search(needle, haystack, numberCompare);\n  });\n\n  assert.equal(binarySearch.search(needle, haystack, numberCompare,\n                                   binarySearch.LEAST_UPPER_BOUND), -1);\n};\n\nexports['test too low with lub bias'] = function (assert) {\n  var needle = 1;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.doesNotThrow(function () {\n    binarySearch.search(needle, haystack, numberCompare);\n  });\n\n  assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare,\n                                            binarySearch.LEAST_UPPER_BOUND)], 2);\n};\n\nexports['test exact search'] = function (assert) {\n  var needle = 4;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare)], 4);\n};\n\nexports['test fuzzy search with default (glb) bias'] = function (assert) {\n  var needle = 19;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare)], 18);\n};\n\nexports['test fuzzy search with lub bias'] = function (assert) {\n  var needle = 19;\n  var haystack = [2,4,6,8,10,12,14,16,18,20];\n\n  assert.equal(haystack[binarySearch.search(needle, haystack, numberCompare,\n                                            binarySearch.LEAST_UPPER_BOUND)], 20);\n};\n\nexports['test multiple matches'] = function (assert) {\n  var needle = 5;\n  var haystack = [1, 1, 2, 5, 5, 5, 13, 21];\n\n  assert.equal(binarySearch.search(needle, haystack, numberCompare,\n                                   binarySearch.LEAST_UPPER_BOUND), 3);\n};\n\nexports['test multiple matches at the beginning'] = function (assert) {\n  var needle = 1;\n  var haystack = [1, 1, 2, 5, 5, 5, 13, 21];\n\n  assert.equal(binarySearch.search(needle, haystack, numberCompare,\n                                   binarySearch.LEAST_UPPER_BOUND), 0);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./test/test-binary-search.js\n// module id = 0\n// module chunks = 0","/* -*- 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\nexports.GREATEST_LOWER_BOUND = 1;\nexports.LEAST_UPPER_BOUND = 2;\n\n/**\n * Recursive implementation of binary search.\n *\n * @param aLow Indices here and lower do not contain the needle.\n * @param aHigh Indices here and higher do not contain the needle.\n * @param aNeedle The element being searched for.\n * @param aHaystack The non-empty array being searched.\n * @param aCompare Function which takes two elements and returns -1, 0, or 1.\n * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or\n *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the\n *     closest element that is smaller than or greater than the one we are\n *     searching for, respectively, if the exact element cannot be found.\n */\nfunction recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {\n  // This function terminates when one of the following is true:\n  //\n  //   1. We find the exact element we are looking for.\n  //\n  //   2. We did not find the exact element, but we can return the index of\n  //      the next-closest element.\n  //\n  //   3. We did not find the exact element, and there is no next-closest\n  //      element than the one we are searching for, so we return -1.\n  var mid = Math.floor((aHigh - aLow) / 2) + aLow;\n  var cmp = aCompare(aNeedle, aHaystack[mid], true);\n  if (cmp === 0) {\n    // Found the element we are looking for.\n    return mid;\n  }\n  else if (cmp > 0) {\n    // Our needle is greater than aHaystack[mid].\n    if (aHigh - mid > 1) {\n      // The element is in the upper half.\n      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);\n    }\n\n    // The exact needle element was not found in this haystack. Determine if\n    // we are in termination case (3) or (2) and return the appropriate thing.\n    if (aBias == exports.LEAST_UPPER_BOUND) {\n      return aHigh < aHaystack.length ? aHigh : -1;\n    } else {\n      return mid;\n    }\n  }\n  else {\n    // Our needle is less than aHaystack[mid].\n    if (mid - aLow > 1) {\n      // The element is in the lower half.\n      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);\n    }\n\n    // we are in termination case (3) or (2) and return the appropriate thing.\n    if (aBias == exports.LEAST_UPPER_BOUND) {\n      return mid;\n    } else {\n      return aLow < 0 ? -1 : aLow;\n    }\n  }\n}\n\n/**\n * This is an implementation of binary search which will always try and return\n * the index of the closest element if there is no exact hit. This is because\n * mappings between original and generated line/col pairs are single points,\n * and there is an implicit region between each of them, so a miss just means\n * that you aren't on the very start of a region.\n *\n * @param aNeedle The element you are looking for.\n * @param aHaystack The array that is being searched.\n * @param aCompare A function which takes the needle and an element in the\n *     array and returns -1, 0, or 1 depending on whether the needle is less\n *     than, equal to, or greater than the element, respectively.\n * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or\n *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the\n *     closest element that is smaller than or greater than the one we are\n *     searching for, respectively, if the exact element cannot be found.\n *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.\n */\nexports.search = function search(aNeedle, aHaystack, aCompare, aBias) {\n  if (aHaystack.length === 0) {\n    return -1;\n  }\n\n  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,\n                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);\n  if (index < 0) {\n    return -1;\n  }\n\n  // We have found either the exact element, or the next-closest element than\n  // the one we are searching for. However, there may be more than one such\n  // element. Make sure we always return the smallest of these.\n  while (index - 1 >= 0) {\n    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {\n      break;\n    }\n    --index;\n  }\n\n  return index;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/binary-search.js\n// module id = 1\n// module chunks = 0"],"sourceRoot":""}
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