1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | import { PRIMARY_OUTLET } from './shared';
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9 | import { UrlSegment, UrlSegmentGroup, UrlTree } from './url_tree';
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10 | import { forEach, last, shallowEqual } from './utils/collection';
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11 | export function createUrlTree(route, urlTree, commands, queryParams, fragment) {
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12 | if (commands.length === 0) {
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13 | return tree(urlTree.root, urlTree.root, urlTree, queryParams, fragment);
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14 | }
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15 | const nav = computeNavigation(commands);
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16 | if (nav.toRoot()) {
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17 | return tree(urlTree.root, new UrlSegmentGroup([], {}), urlTree, queryParams, fragment);
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18 | }
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19 | const startingPosition = findStartingPosition(nav, urlTree, route);
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20 | const segmentGroup = startingPosition.processChildren ?
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21 | updateSegmentGroupChildren(startingPosition.segmentGroup, startingPosition.index, nav.commands) :
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22 | updateSegmentGroup(startingPosition.segmentGroup, startingPosition.index, nav.commands);
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23 | return tree(startingPosition.segmentGroup, segmentGroup, urlTree, queryParams, fragment);
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24 | }
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25 | function isMatrixParams(command) {
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26 | return typeof command === 'object' && command != null && !command.outlets && !command.segmentPath;
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27 | }
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28 | /**
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29 | * Determines if a given command has an `outlets` map. When we encounter a command
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30 | * with an outlets k/v map, we need to apply each outlet individually to the existing segment.
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31 | */
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32 | function isCommandWithOutlets(command) {
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33 | return typeof command === 'object' && command != null && command.outlets;
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34 | }
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35 | function tree(oldSegmentGroup, newSegmentGroup, urlTree, queryParams, fragment) {
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36 | let qp = {};
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37 | if (queryParams) {
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38 | forEach(queryParams, (value, name) => {
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39 | qp[name] = Array.isArray(value) ? value.map((v) => `${v}`) : `${value}`;
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40 | });
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41 | }
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42 | if (urlTree.root === oldSegmentGroup) {
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43 | return new UrlTree(newSegmentGroup, qp, fragment);
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44 | }
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45 | return new UrlTree(replaceSegment(urlTree.root, oldSegmentGroup, newSegmentGroup), qp, fragment);
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46 | }
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47 | function replaceSegment(current, oldSegment, newSegment) {
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48 | const children = {};
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49 | forEach(current.children, (c, outletName) => {
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50 | if (c === oldSegment) {
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51 | children[outletName] = newSegment;
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52 | }
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53 | else {
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54 | children[outletName] = replaceSegment(c, oldSegment, newSegment);
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55 | }
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56 | });
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57 | return new UrlSegmentGroup(current.segments, children);
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58 | }
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59 | class Navigation {
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60 | constructor(isAbsolute, numberOfDoubleDots, commands) {
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61 | this.isAbsolute = isAbsolute;
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62 | this.numberOfDoubleDots = numberOfDoubleDots;
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63 | this.commands = commands;
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64 | if (isAbsolute && commands.length > 0 && isMatrixParams(commands[0])) {
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65 | throw new Error('Root segment cannot have matrix parameters');
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66 | }
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67 | const cmdWithOutlet = commands.find(isCommandWithOutlets);
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68 | if (cmdWithOutlet && cmdWithOutlet !== last(commands)) {
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69 | throw new Error('{outlets:{}} has to be the last command');
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70 | }
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71 | }
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72 | toRoot() {
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73 | return this.isAbsolute && this.commands.length === 1 && this.commands[0] == '/';
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74 | }
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75 | }
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76 | /** Transforms commands to a normalized `Navigation` */
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77 | function computeNavigation(commands) {
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78 | if ((typeof commands[0] === 'string') && commands.length === 1 && commands[0] === '/') {
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79 | return new Navigation(true, 0, commands);
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80 | }
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81 | let numberOfDoubleDots = 0;
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82 | let isAbsolute = false;
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83 | const res = commands.reduce((res, cmd, cmdIdx) => {
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84 | if (typeof cmd === 'object' && cmd != null) {
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85 | if (cmd.outlets) {
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86 | const outlets = {};
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87 | forEach(cmd.outlets, (commands, name) => {
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88 | outlets[name] = typeof commands === 'string' ? commands.split('/') : commands;
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89 | });
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90 | return [...res, { outlets }];
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91 | }
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92 | if (cmd.segmentPath) {
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93 | return [...res, cmd.segmentPath];
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94 | }
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95 | }
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96 | if (!(typeof cmd === 'string')) {
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97 | return [...res, cmd];
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98 | }
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99 | if (cmdIdx === 0) {
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100 | cmd.split('/').forEach((urlPart, partIndex) => {
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101 | if (partIndex == 0 && urlPart === '.') {
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102 | // skip './a'
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103 | }
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104 | else if (partIndex == 0 && urlPart === '') { // '/a'
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105 | isAbsolute = true;
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106 | }
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107 | else if (urlPart === '..') { // '../a'
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108 | numberOfDoubleDots++;
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109 | }
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110 | else if (urlPart != '') {
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111 | res.push(urlPart);
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112 | }
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113 | });
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114 | return res;
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115 | }
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116 | return [...res, cmd];
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117 | }, []);
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118 | return new Navigation(isAbsolute, numberOfDoubleDots, res);
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119 | }
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120 | class Position {
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121 | constructor(segmentGroup, processChildren, index) {
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122 | this.segmentGroup = segmentGroup;
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123 | this.processChildren = processChildren;
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124 | this.index = index;
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125 | }
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126 | }
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127 | function findStartingPosition(nav, tree, route) {
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128 | if (nav.isAbsolute) {
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129 | return new Position(tree.root, true, 0);
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130 | }
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131 | if (route.snapshot._lastPathIndex === -1) {
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132 | const segmentGroup = route.snapshot._urlSegment;
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133 | // Pathless ActivatedRoute has _lastPathIndex === -1 but should not process children
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134 | // see issue #26224, #13011, #35687
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135 | // However, if the ActivatedRoute is the root we should process children like above.
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136 | const processChildren = segmentGroup === tree.root;
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137 | return new Position(segmentGroup, processChildren, 0);
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138 | }
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139 | const modifier = isMatrixParams(nav.commands[0]) ? 0 : 1;
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140 | const index = route.snapshot._lastPathIndex + modifier;
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141 | return createPositionApplyingDoubleDots(route.snapshot._urlSegment, index, nav.numberOfDoubleDots);
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142 | }
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143 | function createPositionApplyingDoubleDots(group, index, numberOfDoubleDots) {
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144 | let g = group;
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145 | let ci = index;
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146 | let dd = numberOfDoubleDots;
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147 | while (dd > ci) {
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148 | dd -= ci;
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149 | g = g.parent;
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150 | if (!g) {
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151 | throw new Error('Invalid number of \'../\'');
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152 | }
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153 | ci = g.segments.length;
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154 | }
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155 | return new Position(g, false, ci - dd);
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156 | }
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157 | function getOutlets(commands) {
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158 | if (isCommandWithOutlets(commands[0])) {
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159 | return commands[0].outlets;
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160 | }
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161 | return { [PRIMARY_OUTLET]: commands };
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162 | }
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163 | function updateSegmentGroup(segmentGroup, startIndex, commands) {
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164 | if (!segmentGroup) {
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165 | segmentGroup = new UrlSegmentGroup([], {});
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166 | }
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167 | if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {
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168 | return updateSegmentGroupChildren(segmentGroup, startIndex, commands);
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169 | }
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170 | const m = prefixedWith(segmentGroup, startIndex, commands);
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171 | const slicedCommands = commands.slice(m.commandIndex);
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172 | if (m.match && m.pathIndex < segmentGroup.segments.length) {
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173 | const g = new UrlSegmentGroup(segmentGroup.segments.slice(0, m.pathIndex), {});
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174 | g.children[PRIMARY_OUTLET] =
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175 | new UrlSegmentGroup(segmentGroup.segments.slice(m.pathIndex), segmentGroup.children);
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176 | return updateSegmentGroupChildren(g, 0, slicedCommands);
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177 | }
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178 | else if (m.match && slicedCommands.length === 0) {
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179 | return new UrlSegmentGroup(segmentGroup.segments, {});
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180 | }
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181 | else if (m.match && !segmentGroup.hasChildren()) {
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182 | return createNewSegmentGroup(segmentGroup, startIndex, commands);
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183 | }
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184 | else if (m.match) {
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185 | return updateSegmentGroupChildren(segmentGroup, 0, slicedCommands);
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186 | }
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187 | else {
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188 | return createNewSegmentGroup(segmentGroup, startIndex, commands);
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189 | }
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190 | }
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191 | function updateSegmentGroupChildren(segmentGroup, startIndex, commands) {
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192 | if (commands.length === 0) {
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193 | return new UrlSegmentGroup(segmentGroup.segments, {});
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194 | }
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195 | else {
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196 | const outlets = getOutlets(commands);
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197 | const children = {};
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198 | forEach(outlets, (commands, outlet) => {
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199 | if (typeof commands === 'string') {
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200 | commands = [commands];
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201 | }
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202 | if (commands !== null) {
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203 | children[outlet] = updateSegmentGroup(segmentGroup.children[outlet], startIndex, commands);
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204 | }
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205 | });
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206 | forEach(segmentGroup.children, (child, childOutlet) => {
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207 | if (outlets[childOutlet] === undefined) {
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208 | children[childOutlet] = child;
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209 | }
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210 | });
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211 | return new UrlSegmentGroup(segmentGroup.segments, children);
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212 | }
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213 | }
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214 | function prefixedWith(segmentGroup, startIndex, commands) {
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215 | let currentCommandIndex = 0;
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216 | let currentPathIndex = startIndex;
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217 | const noMatch = { match: false, pathIndex: 0, commandIndex: 0 };
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218 | while (currentPathIndex < segmentGroup.segments.length) {
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219 | if (currentCommandIndex >= commands.length)
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220 | return noMatch;
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221 | const path = segmentGroup.segments[currentPathIndex];
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222 | const command = commands[currentCommandIndex];
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223 | // Do not try to consume command as part of the prefixing if it has outlets because it can
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224 | // contain outlets other than the one being processed. Consuming the outlets command would
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225 | // result in other outlets being ignored.
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226 | if (isCommandWithOutlets(command)) {
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227 | break;
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228 | }
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229 | const curr = `${command}`;
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230 | const next = currentCommandIndex < commands.length - 1 ? commands[currentCommandIndex + 1] : null;
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231 | if (currentPathIndex > 0 && curr === undefined)
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232 | break;
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233 | if (curr && next && (typeof next === 'object') && next.outlets === undefined) {
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234 | if (!compare(curr, next, path))
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235 | return noMatch;
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236 | currentCommandIndex += 2;
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237 | }
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238 | else {
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239 | if (!compare(curr, {}, path))
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240 | return noMatch;
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241 | currentCommandIndex++;
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242 | }
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243 | currentPathIndex++;
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244 | }
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245 | return { match: true, pathIndex: currentPathIndex, commandIndex: currentCommandIndex };
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246 | }
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247 | function createNewSegmentGroup(segmentGroup, startIndex, commands) {
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248 | const paths = segmentGroup.segments.slice(0, startIndex);
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249 | let i = 0;
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250 | while (i < commands.length) {
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251 | const command = commands[i];
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252 | if (isCommandWithOutlets(command)) {
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253 | const children = createNewSegmentChildren(command.outlets);
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254 | return new UrlSegmentGroup(paths, children);
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255 | }
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256 | // if we start with an object literal, we need to reuse the path part from the segment
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257 | if (i === 0 && isMatrixParams(commands[0])) {
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258 | const p = segmentGroup.segments[startIndex];
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259 | paths.push(new UrlSegment(p.path, stringify(commands[0])));
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260 | i++;
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261 | continue;
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262 | }
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263 | const curr = isCommandWithOutlets(command) ? command.outlets[PRIMARY_OUTLET] : `${command}`;
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264 | const next = (i < commands.length - 1) ? commands[i + 1] : null;
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265 | if (curr && next && isMatrixParams(next)) {
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266 | paths.push(new UrlSegment(curr, stringify(next)));
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267 | i += 2;
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268 | }
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269 | else {
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270 | paths.push(new UrlSegment(curr, {}));
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271 | i++;
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272 | }
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273 | }
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274 | return new UrlSegmentGroup(paths, {});
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275 | }
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276 | function createNewSegmentChildren(outlets) {
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277 | const children = {};
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278 | forEach(outlets, (commands, outlet) => {
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279 | if (typeof commands === 'string') {
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280 | commands = [commands];
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281 | }
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282 | if (commands !== null) {
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283 | children[outlet] = createNewSegmentGroup(new UrlSegmentGroup([], {}), 0, commands);
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284 | }
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285 | });
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286 | return children;
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287 | }
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288 | function stringify(params) {
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289 | const res = {};
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290 | forEach(params, (v, k) => res[k] = `${v}`);
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291 | return res;
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292 | }
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293 | function compare(path, params, segment) {
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294 | return path == segment.path && shallowEqual(params, segment.parameters);
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295 | }
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296 | //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ActivatedRoute} from './router_state';\nimport {Params, PRIMARY_OUTLET} from './shared';\nimport {UrlSegment, UrlSegmentGroup, UrlTree} from './url_tree';\nimport {forEach, last, shallowEqual} from './utils/collection';\n\nexport function createUrlTree(\n    route: ActivatedRoute, urlTree: UrlTree, commands: any[], queryParams: Params|null,\n    fragment: string|null): UrlTree {\n  if (commands.length === 0) {\n    return tree(urlTree.root, urlTree.root, urlTree, queryParams, fragment);\n  }\n\n  const nav = computeNavigation(commands);\n\n  if (nav.toRoot()) {\n    return tree(urlTree.root, new UrlSegmentGroup([], {}), urlTree, queryParams, fragment);\n  }\n\n  const startingPosition = findStartingPosition(nav, urlTree, route);\n\n  const segmentGroup = startingPosition.processChildren ?\n      updateSegmentGroupChildren(\n          startingPosition.segmentGroup, startingPosition.index, nav.commands) :\n      updateSegmentGroup(startingPosition.segmentGroup, startingPosition.index, nav.commands);\n  return tree(startingPosition.segmentGroup, segmentGroup, urlTree, queryParams, fragment);\n}\n\nfunction isMatrixParams(command: any): boolean {\n  return typeof command === 'object' && command != null && !command.outlets && !command.segmentPath;\n}\n\n/**\n * Determines if a given command has an `outlets` map. When we encounter a command\n * with an outlets k/v map, we need to apply each outlet individually to the existing segment.\n */\nfunction isCommandWithOutlets(command: any): command is {outlets: {[key: string]: any}} {\n  return typeof command === 'object' && command != null && command.outlets;\n}\n\nfunction tree(\n    oldSegmentGroup: UrlSegmentGroup, newSegmentGroup: UrlSegmentGroup, urlTree: UrlTree,\n    queryParams: Params|null, fragment: string|null): UrlTree {\n  let qp: any = {};\n  if (queryParams) {\n    forEach(queryParams, (value: any, name: any) => {\n      qp[name] = Array.isArray(value) ? value.map((v: any) => `${v}`) : `${value}`;\n    });\n  }\n\n  if (urlTree.root === oldSegmentGroup) {\n    return new UrlTree(newSegmentGroup, qp, fragment);\n  }\n\n  return new UrlTree(replaceSegment(urlTree.root, oldSegmentGroup, newSegmentGroup), qp, fragment);\n}\n\nfunction replaceSegment(\n    current: UrlSegmentGroup, oldSegment: UrlSegmentGroup,\n    newSegment: UrlSegmentGroup): UrlSegmentGroup {\n  const children: {[key: string]: UrlSegmentGroup} = {};\n  forEach(current.children, (c: UrlSegmentGroup, outletName: string) => {\n    if (c === oldSegment) {\n      children[outletName] = newSegment;\n    } else {\n      children[outletName] = replaceSegment(c, oldSegment, newSegment);\n    }\n  });\n  return new UrlSegmentGroup(current.segments, children);\n}\n\nclass Navigation {\n  constructor(\n      public isAbsolute: boolean, public numberOfDoubleDots: number, public commands: any[]) {\n    if (isAbsolute && commands.length > 0 && isMatrixParams(commands[0])) {\n      throw new Error('Root segment cannot have matrix parameters');\n    }\n\n    const cmdWithOutlet = commands.find(isCommandWithOutlets);\n    if (cmdWithOutlet && cmdWithOutlet !== last(commands)) {\n      throw new Error('{outlets:{}} has to be the last command');\n    }\n  }\n\n  public toRoot(): boolean {\n    return this.isAbsolute && this.commands.length === 1 && this.commands[0] == '/';\n  }\n}\n\n/** Transforms commands to a normalized `Navigation` */\nfunction computeNavigation(commands: any[]): Navigation {\n  if ((typeof commands[0] === 'string') && commands.length === 1 && commands[0] === '/') {\n    return new Navigation(true, 0, commands);\n  }\n\n  let numberOfDoubleDots = 0;\n  let isAbsolute = false;\n\n  const res: any[] = commands.reduce((res, cmd, cmdIdx) => {\n    if (typeof cmd === 'object' && cmd != null) {\n      if (cmd.outlets) {\n        const outlets: {[k: string]: any} = {};\n        forEach(cmd.outlets, (commands: any, name: string) => {\n          outlets[name] = typeof commands === 'string' ? commands.split('/') : commands;\n        });\n        return [...res, {outlets}];\n      }\n\n      if (cmd.segmentPath) {\n        return [...res, cmd.segmentPath];\n      }\n    }\n\n    if (!(typeof cmd === 'string')) {\n      return [...res, cmd];\n    }\n\n    if (cmdIdx === 0) {\n      cmd.split('/').forEach((urlPart, partIndex) => {\n        if (partIndex == 0 && urlPart === '.') {\n          // skip './a'\n        } else if (partIndex == 0 && urlPart === '') {  //  '/a'\n          isAbsolute = true;\n        } else if (urlPart === '..') {  //  '../a'\n          numberOfDoubleDots++;\n        } else if (urlPart != '') {\n          res.push(urlPart);\n        }\n      });\n\n      return res;\n    }\n\n    return [...res, cmd];\n  }, []);\n\n  return new Navigation(isAbsolute, numberOfDoubleDots, res);\n}\n\nclass Position {\n  constructor(\n      public segmentGroup: UrlSegmentGroup, public processChildren: boolean, public index: number) {\n  }\n}\n\nfunction findStartingPosition(nav: Navigation, tree: UrlTree, route: ActivatedRoute): Position {\n  if (nav.isAbsolute) {\n    return new Position(tree.root, true, 0);\n  }\n\n  if (route.snapshot._lastPathIndex === -1) {\n    const segmentGroup = route.snapshot._urlSegment;\n    // Pathless ActivatedRoute has _lastPathIndex === -1 but should not process children\n    // see issue #26224, #13011, #35687\n    // However, if the ActivatedRoute is the root we should process children like above.\n    const processChildren = segmentGroup === tree.root;\n    return new Position(segmentGroup, processChildren, 0);\n  }\n\n  const modifier = isMatrixParams(nav.commands[0]) ? 0 : 1;\n  const index = route.snapshot._lastPathIndex + modifier;\n  return createPositionApplyingDoubleDots(\n      route.snapshot._urlSegment, index, nav.numberOfDoubleDots);\n}\n\nfunction createPositionApplyingDoubleDots(\n    group: UrlSegmentGroup, index: number, numberOfDoubleDots: number): Position {\n  let g = group;\n  let ci = index;\n  let dd = numberOfDoubleDots;\n  while (dd > ci) {\n    dd -= ci;\n    g = g.parent!;\n    if (!g) {\n      throw new Error('Invalid number of \\'../\\'');\n    }\n    ci = g.segments.length;\n  }\n  return new Position(g, false, ci - dd);\n}\n\nfunction getOutlets(commands: unknown[]): {[k: string]: unknown[]|string} {\n  if (isCommandWithOutlets(commands[0])) {\n    return commands[0].outlets;\n  }\n\n  return {[PRIMARY_OUTLET]: commands};\n}\n\nfunction updateSegmentGroup(\n    segmentGroup: UrlSegmentGroup, startIndex: number, commands: any[]): UrlSegmentGroup {\n  if (!segmentGroup) {\n    segmentGroup = new UrlSegmentGroup([], {});\n  }\n  if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {\n    return updateSegmentGroupChildren(segmentGroup, startIndex, commands);\n  }\n\n  const m = prefixedWith(segmentGroup, startIndex, commands);\n  const slicedCommands = commands.slice(m.commandIndex);\n  if (m.match && m.pathIndex < segmentGroup.segments.length) {\n    const g = new UrlSegmentGroup(segmentGroup.segments.slice(0, m.pathIndex), {});\n    g.children[PRIMARY_OUTLET] =\n        new UrlSegmentGroup(segmentGroup.segments.slice(m.pathIndex), segmentGroup.children);\n    return updateSegmentGroupChildren(g, 0, slicedCommands);\n  } else if (m.match && slicedCommands.length === 0) {\n    return new UrlSegmentGroup(segmentGroup.segments, {});\n  } else if (m.match && !segmentGroup.hasChildren()) {\n    return createNewSegmentGroup(segmentGroup, startIndex, commands);\n  } else if (m.match) {\n    return updateSegmentGroupChildren(segmentGroup, 0, slicedCommands);\n  } else {\n    return createNewSegmentGroup(segmentGroup, startIndex, commands);\n  }\n}\n\nfunction updateSegmentGroupChildren(\n    segmentGroup: UrlSegmentGroup, startIndex: number, commands: any[]): UrlSegmentGroup {\n  if (commands.length === 0) {\n    return new UrlSegmentGroup(segmentGroup.segments, {});\n  } else {\n    const outlets = getOutlets(commands);\n    const children: {[key: string]: UrlSegmentGroup} = {};\n\n    forEach(outlets, (commands, outlet) => {\n      if (typeof commands === 'string') {\n        commands = [commands];\n      }\n      if (commands !== null) {\n        children[outlet] = updateSegmentGroup(segmentGroup.children[outlet], startIndex, commands);\n      }\n    });\n\n    forEach(segmentGroup.children, (child: UrlSegmentGroup, childOutlet: string) => {\n      if (outlets[childOutlet] === undefined) {\n        children[childOutlet] = child;\n      }\n    });\n    return new UrlSegmentGroup(segmentGroup.segments, children);\n  }\n}\n\nfunction prefixedWith(segmentGroup: UrlSegmentGroup, startIndex: number, commands: any[]) {\n  let currentCommandIndex = 0;\n  let currentPathIndex = startIndex;\n\n  const noMatch = {match: false, pathIndex: 0, commandIndex: 0};\n  while (currentPathIndex < segmentGroup.segments.length) {\n    if (currentCommandIndex >= commands.length) return noMatch;\n    const path = segmentGroup.segments[currentPathIndex];\n    const command = commands[currentCommandIndex];\n    // Do not try to consume command as part of the prefixing if it has outlets because it can\n    // contain outlets other than the one being processed. Consuming the outlets command would\n    // result in other outlets being ignored.\n    if (isCommandWithOutlets(command)) {\n      break;\n    }\n    const curr = `${command}`;\n    const next =\n        currentCommandIndex < commands.length - 1 ? commands[currentCommandIndex + 1] : null;\n\n    if (currentPathIndex > 0 && curr === undefined) break;\n\n    if (curr && next && (typeof next === 'object') && next.outlets === undefined) {\n      if (!compare(curr, next, path)) return noMatch;\n      currentCommandIndex += 2;\n    } else {\n      if (!compare(curr, {}, path)) return noMatch;\n      currentCommandIndex++;\n    }\n    currentPathIndex++;\n  }\n\n  return {match: true, pathIndex: currentPathIndex, commandIndex: currentCommandIndex};\n}\n\nfunction createNewSegmentGroup(\n    segmentGroup: UrlSegmentGroup, startIndex: number, commands: any[]): UrlSegmentGroup {\n  const paths = segmentGroup.segments.slice(0, startIndex);\n\n  let i = 0;\n  while (i < commands.length) {\n    const command = commands[i];\n    if (isCommandWithOutlets(command)) {\n      const children = createNewSegmentChildren(command.outlets);\n      return new UrlSegmentGroup(paths, children);\n    }\n\n    // if we start with an object literal, we need to reuse the path part from the segment\n    if (i === 0 && isMatrixParams(commands[0])) {\n      const p = segmentGroup.segments[startIndex];\n      paths.push(new UrlSegment(p.path, stringify(commands[0])));\n      i++;\n      continue;\n    }\n\n    const curr = isCommandWithOutlets(command) ? command.outlets[PRIMARY_OUTLET] : `${command}`;\n    const next = (i < commands.length - 1) ? commands[i + 1] : null;\n    if (curr && next && isMatrixParams(next)) {\n      paths.push(new UrlSegment(curr, stringify(next)));\n      i += 2;\n    } else {\n      paths.push(new UrlSegment(curr, {}));\n      i++;\n    }\n  }\n  return new UrlSegmentGroup(paths, {});\n}\n\nfunction createNewSegmentChildren(outlets: {[name: string]: unknown[]|string}):\n    {[outlet: string]: UrlSegmentGroup} {\n  const children: {[outlet: string]: UrlSegmentGroup} = {};\n  forEach(outlets, (commands, outlet) => {\n    if (typeof commands === 'string') {\n      commands = [commands];\n    }\n    if (commands !== null) {\n      children[outlet] = createNewSegmentGroup(new UrlSegmentGroup([], {}), 0, commands);\n    }\n  });\n  return children;\n}\n\nfunction stringify(params: {[key: string]: any}): {[key: string]: string} {\n  const res: {[key: string]: string} = {};\n  forEach(params, (v: any, k: string) => res[k] = `${v}`);\n  return res;\n}\n\nfunction compare(path: string, params: {[key: string]: any}, segment: UrlSegment): boolean {\n  return path == segment.path && shallowEqual(params, segment.parameters);\n}\n"]} |
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