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 | (function (factory) {
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9 | if (typeof module === "object" && typeof module.exports === "object") {
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10 | var v = factory(require, exports);
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11 | if (v !== undefined) module.exports = v;
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12 | }
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13 | else if (typeof define === "function" && define.amd) {
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14 | define("@angular/compiler-cli/ngcc/src/dependencies/dependency_resolver", ["require", "exports", "tslib", "dependency-graph", "@angular/compiler-cli/ngcc/src/packages/entry_point", "@angular/compiler-cli/ngcc/src/dependencies/dependency_host"], factory);
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15 | }
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16 | })(function (require, exports) {
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17 | "use strict";
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18 | Object.defineProperty(exports, "__esModule", { value: true });
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19 | exports.DependencyResolver = void 0;
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20 | var tslib_1 = require("tslib");
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21 | var dependency_graph_1 = require("dependency-graph");
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22 | var entry_point_1 = require("@angular/compiler-cli/ngcc/src/packages/entry_point");
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23 | var dependency_host_1 = require("@angular/compiler-cli/ngcc/src/dependencies/dependency_host");
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24 | var builtinNodeJsModules = new Set(require('module').builtinModules);
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25 | /**
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26 | * A class that resolves dependencies between entry-points.
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27 | */
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28 | var DependencyResolver = /** @class */ (function () {
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29 | function DependencyResolver(fs, logger, config, hosts, typingsHost) {
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30 | this.fs = fs;
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31 | this.logger = logger;
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32 | this.config = config;
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33 | this.hosts = hosts;
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34 | this.typingsHost = typingsHost;
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35 | }
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36 | /**
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37 | * Sort the array of entry points so that the dependant entry points always come later than
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38 | * their dependencies in the array.
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39 | * @param entryPoints An array entry points to sort.
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40 | * @param target If provided, only return entry-points depended on by this entry-point.
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41 | * @returns the result of sorting the entry points by dependency.
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42 | */
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43 | DependencyResolver.prototype.sortEntryPointsByDependency = function (entryPoints, target) {
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44 | var _a = this.computeDependencyGraph(entryPoints), invalidEntryPoints = _a.invalidEntryPoints, ignoredDependencies = _a.ignoredDependencies, graph = _a.graph;
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45 | var sortedEntryPointNodes;
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46 | if (target) {
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47 | if (target.compiledByAngular && graph.hasNode(target.path)) {
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48 | sortedEntryPointNodes = graph.dependenciesOf(target.path);
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49 | sortedEntryPointNodes.push(target.path);
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50 | }
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51 | else {
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52 | sortedEntryPointNodes = [];
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53 | }
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54 | }
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55 | else {
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56 | sortedEntryPointNodes = graph.overallOrder();
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57 | }
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58 | return {
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59 | entryPoints: sortedEntryPointNodes
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60 | .map(function (path) { return graph.getNodeData(path); }),
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61 | graph: graph,
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62 | invalidEntryPoints: invalidEntryPoints,
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63 | ignoredDependencies: ignoredDependencies,
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64 | };
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65 | };
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66 | DependencyResolver.prototype.getEntryPointWithDependencies = function (entryPoint) {
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67 | var dependencies = dependency_host_1.createDependencyInfo();
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68 | if (entryPoint.compiledByAngular) {
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69 | // Only bother to compute dependencies of entry-points that have been compiled by Angular
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70 | var formatInfo = this.getEntryPointFormatInfo(entryPoint);
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71 | var host = this.hosts[formatInfo.format];
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72 | if (!host) {
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73 | throw new Error("Could not find a suitable format for computing dependencies of entry-point: '" + entryPoint.path + "'.");
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74 | }
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75 | host.collectDependencies(formatInfo.path, dependencies);
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76 | this.typingsHost.collectDependencies(entryPoint.typings, dependencies);
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77 | }
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78 | return { entryPoint: entryPoint, depInfo: dependencies };
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79 | };
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80 | /**
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81 | * Computes a dependency graph of the given entry-points.
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82 | *
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83 | * The graph only holds entry-points that ngcc cares about and whose dependencies
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84 | * (direct and transitive) all exist.
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85 | */
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86 | DependencyResolver.prototype.computeDependencyGraph = function (entryPoints) {
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87 | var _this = this;
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88 | var invalidEntryPoints = [];
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89 | var ignoredDependencies = [];
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90 | var graph = new dependency_graph_1.DepGraph();
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91 | var angularEntryPoints = entryPoints.filter(function (e) { return e.entryPoint.compiledByAngular; });
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92 | // Add the Angular compiled entry points to the graph as nodes
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93 | angularEntryPoints.forEach(function (e) { return graph.addNode(e.entryPoint.path, e.entryPoint); });
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94 | // Now add the dependencies between them
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95 | angularEntryPoints.forEach(function (_a) {
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96 | var entryPoint = _a.entryPoint, _b = _a.depInfo, dependencies = _b.dependencies, missing = _b.missing, deepImports = _b.deepImports;
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97 | var missingDependencies = Array.from(missing).filter(function (dep) { return !builtinNodeJsModules.has(dep); });
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98 | if (missingDependencies.length > 0 && !entryPoint.ignoreMissingDependencies) {
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99 | // This entry point has dependencies that are missing
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100 | // so remove it from the graph.
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101 | removeNodes(entryPoint, missingDependencies);
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102 | }
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103 | else {
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104 | dependencies.forEach(function (dependencyPath) {
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105 | if (!graph.hasNode(entryPoint.path)) {
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106 | // The entry-point has already been identified as invalid so we don't need
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107 | // to do any further work on it.
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108 | }
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109 | else if (graph.hasNode(dependencyPath)) {
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110 | // The entry-point is still valid (i.e. has no missing dependencies) and
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111 | // the dependency maps to an entry point that exists in the graph so add it
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112 | graph.addDependency(entryPoint.path, dependencyPath);
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113 | }
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114 | else if (invalidEntryPoints.some(function (i) { return i.entryPoint.path === dependencyPath; })) {
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115 | // The dependency path maps to an entry-point that was previously removed
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116 | // from the graph, so remove this entry-point as well.
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117 | removeNodes(entryPoint, [dependencyPath]);
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118 | }
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119 | else {
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120 | // The dependency path points to a package that ngcc does not care about.
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121 | ignoredDependencies.push({ entryPoint: entryPoint, dependencyPath: dependencyPath });
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122 | }
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123 | });
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124 | }
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125 | if (deepImports.size > 0) {
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126 | var notableDeepImports = _this.filterIgnorableDeepImports(entryPoint, deepImports);
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127 | if (notableDeepImports.length > 0) {
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128 | var imports = notableDeepImports.map(function (i) { return "'" + i + "'"; }).join(', ');
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129 | _this.logger.warn("Entry point '" + entryPoint.name + "' contains deep imports into " + imports + ". " +
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130 | "This is probably not a problem, but may cause the compilation of entry points to be out of order.");
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131 | }
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132 | }
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133 | });
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134 | return { invalidEntryPoints: invalidEntryPoints, ignoredDependencies: ignoredDependencies, graph: graph };
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135 | function removeNodes(entryPoint, missingDependencies) {
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136 | var nodesToRemove = tslib_1.__spreadArray([entryPoint.path], tslib_1.__read(graph.dependantsOf(entryPoint.path)));
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137 | nodesToRemove.forEach(function (node) {
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138 | invalidEntryPoints.push({ entryPoint: graph.getNodeData(node), missingDependencies: missingDependencies });
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139 | graph.removeNode(node);
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140 | });
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141 | }
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142 | };
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143 | DependencyResolver.prototype.getEntryPointFormatInfo = function (entryPoint) {
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144 | var e_1, _a;
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145 | try {
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146 | for (var SUPPORTED_FORMAT_PROPERTIES_1 = tslib_1.__values(entry_point_1.SUPPORTED_FORMAT_PROPERTIES), SUPPORTED_FORMAT_PROPERTIES_1_1 = SUPPORTED_FORMAT_PROPERTIES_1.next(); !SUPPORTED_FORMAT_PROPERTIES_1_1.done; SUPPORTED_FORMAT_PROPERTIES_1_1 = SUPPORTED_FORMAT_PROPERTIES_1.next()) {
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147 | var property = SUPPORTED_FORMAT_PROPERTIES_1_1.value;
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148 | var formatPath = entryPoint.packageJson[property];
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149 | if (formatPath === undefined)
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150 | continue;
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151 | var format = entry_point_1.getEntryPointFormat(this.fs, entryPoint, property);
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152 | if (format === undefined)
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153 | continue;
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154 | return { format: format, path: this.fs.resolve(entryPoint.path, formatPath) };
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155 | }
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156 | }
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157 | catch (e_1_1) { e_1 = { error: e_1_1 }; }
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158 | finally {
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159 | try {
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160 | if (SUPPORTED_FORMAT_PROPERTIES_1_1 && !SUPPORTED_FORMAT_PROPERTIES_1_1.done && (_a = SUPPORTED_FORMAT_PROPERTIES_1.return)) _a.call(SUPPORTED_FORMAT_PROPERTIES_1);
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161 | }
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162 | finally { if (e_1) throw e_1.error; }
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163 | }
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164 | throw new Error("There is no appropriate source code format in '" + entryPoint.path + "' entry-point.");
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165 | };
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166 | /**
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167 | * Filter out the deepImports that can be ignored, according to this entryPoint's config.
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168 | */
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169 | DependencyResolver.prototype.filterIgnorableDeepImports = function (entryPoint, deepImports) {
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170 | var version = (entryPoint.packageJson.version || null);
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171 | var packageConfig = this.config.getPackageConfig(entryPoint.packageName, entryPoint.packagePath, version);
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172 | var matchers = packageConfig.ignorableDeepImportMatchers;
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173 | return Array.from(deepImports)
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174 | .filter(function (deepImport) { return !matchers.some(function (matcher) { return matcher.test(deepImport); }); });
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175 | };
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176 | return DependencyResolver;
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177 | }());
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178 | exports.DependencyResolver = DependencyResolver;
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179 | });
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180 | //# 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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 {DepGraph} from 'dependency-graph';\n\nimport {AbsoluteFsPath, ReadonlyFileSystem} from '../../../src/ngtsc/file_system';\nimport {Logger} from '../../../src/ngtsc/logging';\nimport {NgccConfiguration} from '../packages/configuration';\nimport {EntryPoint, EntryPointFormat, getEntryPointFormat, SUPPORTED_FORMAT_PROPERTIES} from '../packages/entry_point';\nimport {PartiallyOrderedList} from '../utils';\n\nimport {createDependencyInfo, DependencyHost, EntryPointWithDependencies} from './dependency_host';\n\nconst builtinNodeJsModules = new Set<string>(require('module').builtinModules);\n\n/**\n * Holds information about entry points that are removed because\n * they have dependencies that are missing (directly or transitively).\n *\n * This might not be an error, because such an entry point might not actually be used\n * in the application. If it is used then the `ngc` application compilation would\n * fail also, so we don't need ngcc to catch this.\n *\n * For example, consider an application that uses the `@angular/router` package.\n * This package includes an entry-point called `@angular/router/upgrade`, which has a dependency\n * on the `@angular/upgrade` package.\n * If the application never uses code from `@angular/router/upgrade` then there is no need for\n * `@angular/upgrade` to be installed.\n * In this case the ngcc tool should just ignore the `@angular/router/upgrade` end-point.\n */\nexport interface InvalidEntryPoint {\n  entryPoint: EntryPoint;\n  missingDependencies: string[];\n}\n\n/**\n * Holds information about dependencies of an entry-point that do not need to be processed\n * by the ngcc tool.\n *\n * For example, the `rxjs` package does not contain any Angular decorators that need to be\n * compiled and so this can be safely ignored by ngcc.\n */\nexport interface IgnoredDependency {\n  entryPoint: EntryPoint;\n  dependencyPath: string;\n}\n\nexport interface DependencyDiagnostics {\n  invalidEntryPoints: InvalidEntryPoint[];\n  ignoredDependencies: IgnoredDependency[];\n}\n\n/**\n * Represents a partially ordered list of entry-points.\n *\n * The entry-points' order/precedence is such that dependent entry-points always come later than\n * their dependencies in the list.\n *\n * See `DependencyResolver#sortEntryPointsByDependency()`.\n */\nexport type PartiallyOrderedEntryPoints = PartiallyOrderedList<EntryPoint>;\n\n/**\n * A list of entry-points, sorted by their dependencies, and the dependency graph.\n *\n * The `entryPoints` array will be ordered so that no entry point depends upon an entry point that\n * appears later in the array.\n *\n * Some entry points or their dependencies may have been ignored. These are captured for\n * diagnostic purposes in `invalidEntryPoints` and `ignoredDependencies` respectively.\n */\nexport interface SortedEntryPointsInfo extends DependencyDiagnostics {\n  entryPoints: PartiallyOrderedEntryPoints;\n  graph: DepGraph<EntryPoint>;\n}\n\n/**\n * A class that resolves dependencies between entry-points.\n */\nexport class DependencyResolver {\n  constructor(\n      private fs: ReadonlyFileSystem, private logger: Logger, private config: NgccConfiguration,\n      private hosts: Partial<Record<EntryPointFormat, DependencyHost>>,\n      private typingsHost: DependencyHost) {}\n  /**\n   * Sort the array of entry points so that the dependant entry points always come later than\n   * their dependencies in the array.\n   * @param entryPoints An array entry points to sort.\n   * @param target If provided, only return entry-points depended on by this entry-point.\n   * @returns the result of sorting the entry points by dependency.\n   */\n  sortEntryPointsByDependency(entryPoints: EntryPointWithDependencies[], target?: EntryPoint):\n      SortedEntryPointsInfo {\n    const {invalidEntryPoints, ignoredDependencies, graph} =\n        this.computeDependencyGraph(entryPoints);\n\n    let sortedEntryPointNodes: string[];\n    if (target) {\n      if (target.compiledByAngular && graph.hasNode(target.path)) {\n        sortedEntryPointNodes = graph.dependenciesOf(target.path);\n        sortedEntryPointNodes.push(target.path);\n      } else {\n        sortedEntryPointNodes = [];\n      }\n    } else {\n      sortedEntryPointNodes = graph.overallOrder();\n    }\n\n    return {\n      entryPoints: (sortedEntryPointNodes as PartiallyOrderedList<string>)\n                       .map(path => graph.getNodeData(path)),\n      graph,\n      invalidEntryPoints,\n      ignoredDependencies,\n    };\n  }\n\n  getEntryPointWithDependencies(entryPoint: EntryPoint): EntryPointWithDependencies {\n    const dependencies = createDependencyInfo();\n    if (entryPoint.compiledByAngular) {\n      // Only bother to compute dependencies of entry-points that have been compiled by Angular\n      const formatInfo = this.getEntryPointFormatInfo(entryPoint);\n      const host = this.hosts[formatInfo.format];\n      if (!host) {\n        throw new Error(\n            `Could not find a suitable format for computing dependencies of entry-point: '${\n                entryPoint.path}'.`);\n      }\n      host.collectDependencies(formatInfo.path, dependencies);\n      this.typingsHost.collectDependencies(entryPoint.typings, dependencies);\n    }\n    return {entryPoint, depInfo: dependencies};\n  }\n\n  /**\n   * Computes a dependency graph of the given entry-points.\n   *\n   * The graph only holds entry-points that ngcc cares about and whose dependencies\n   * (direct and transitive) all exist.\n   */\n  private computeDependencyGraph(entryPoints: EntryPointWithDependencies[]): DependencyGraph {\n    const invalidEntryPoints: InvalidEntryPoint[] = [];\n    const ignoredDependencies: IgnoredDependency[] = [];\n    const graph = new DepGraph<EntryPoint>();\n\n    const angularEntryPoints = entryPoints.filter(e => e.entryPoint.compiledByAngular);\n\n    // Add the Angular compiled entry points to the graph as nodes\n    angularEntryPoints.forEach(e => graph.addNode(e.entryPoint.path, e.entryPoint));\n\n    // Now add the dependencies between them\n    angularEntryPoints.forEach(({entryPoint, depInfo: {dependencies, missing, deepImports}}) => {\n      const missingDependencies = Array.from(missing).filter(dep => !builtinNodeJsModules.has(dep));\n\n      if (missingDependencies.length > 0 && !entryPoint.ignoreMissingDependencies) {\n        // This entry point has dependencies that are missing\n        // so remove it from the graph.\n        removeNodes(entryPoint, missingDependencies);\n      } else {\n        dependencies.forEach(dependencyPath => {\n          if (!graph.hasNode(entryPoint.path)) {\n            // The entry-point has already been identified as invalid so we don't need\n            // to do any further work on it.\n          } else if (graph.hasNode(dependencyPath)) {\n            // The entry-point is still valid (i.e. has no missing dependencies) and\n            // the dependency maps to an entry point that exists in the graph so add it\n            graph.addDependency(entryPoint.path, dependencyPath);\n          } else if (invalidEntryPoints.some(i => i.entryPoint.path === dependencyPath)) {\n            // The dependency path maps to an entry-point that was previously removed\n            // from the graph, so remove this entry-point as well.\n            removeNodes(entryPoint, [dependencyPath]);\n          } else {\n            // The dependency path points to a package that ngcc does not care about.\n            ignoredDependencies.push({entryPoint, dependencyPath});\n          }\n        });\n      }\n\n      if (deepImports.size > 0) {\n        const notableDeepImports = this.filterIgnorableDeepImports(entryPoint, deepImports);\n        if (notableDeepImports.length > 0) {\n          const imports = notableDeepImports.map(i => `'${i}'`).join(', ');\n          this.logger.warn(\n              `Entry point '${entryPoint.name}' contains deep imports into ${imports}. ` +\n              `This is probably not a problem, but may cause the compilation of entry points to be out of order.`);\n        }\n      }\n    });\n\n    return {invalidEntryPoints, ignoredDependencies, graph};\n\n    function removeNodes(entryPoint: EntryPoint, missingDependencies: string[]) {\n      const nodesToRemove = [entryPoint.path, ...graph.dependantsOf(entryPoint.path)];\n      nodesToRemove.forEach(node => {\n        invalidEntryPoints.push({entryPoint: graph.getNodeData(node), missingDependencies});\n        graph.removeNode(node);\n      });\n    }\n  }\n\n  private getEntryPointFormatInfo(entryPoint: EntryPoint):\n      {format: EntryPointFormat, path: AbsoluteFsPath} {\n    for (const property of SUPPORTED_FORMAT_PROPERTIES) {\n      const formatPath = entryPoint.packageJson[property];\n      if (formatPath === undefined) continue;\n\n      const format = getEntryPointFormat(this.fs, entryPoint, property);\n      if (format === undefined) continue;\n\n      return {format, path: this.fs.resolve(entryPoint.path, formatPath)};\n    }\n\n    throw new Error(\n        `There is no appropriate source code format in '${entryPoint.path}' entry-point.`);\n  }\n\n  /**\n   * Filter out the deepImports that can be ignored, according to this entryPoint's config.\n   */\n  private filterIgnorableDeepImports(entryPoint: EntryPoint, deepImports: Set<AbsoluteFsPath>):\n      AbsoluteFsPath[] {\n    const version = (entryPoint.packageJson.version || null) as string | null;\n    const packageConfig =\n        this.config.getPackageConfig(entryPoint.packageName, entryPoint.packagePath, version);\n    const matchers = packageConfig.ignorableDeepImportMatchers;\n    return Array.from(deepImports)\n        .filter(deepImport => !matchers.some(matcher => matcher.test(deepImport)));\n  }\n}\n\ninterface DependencyGraph extends DependencyDiagnostics {\n  graph: DepGraph<EntryPoint>;\n}\n"]} |
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