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/src/ngtsc/metadata/src/util", ["require", "exports", "tslib", "typescript", "@angular/compiler-cli/src/ngtsc/imports", "@angular/compiler-cli/src/ngtsc/reflection", "@angular/compiler-cli/src/ngtsc/util/src/typescript"], 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.hasInjectableFields = exports.CompoundMetadataReader = exports.extractDirectiveTypeCheckMeta = exports.readStringArrayType = exports.readStringMapType = exports.readStringType = exports.extractReferencesFromType = void 0;
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20 | var tslib_1 = require("tslib");
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21 | var ts = require("typescript");
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22 | var imports_1 = require("@angular/compiler-cli/src/ngtsc/imports");
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23 | var reflection_1 = require("@angular/compiler-cli/src/ngtsc/reflection");
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24 | var typescript_1 = require("@angular/compiler-cli/src/ngtsc/util/src/typescript");
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25 | function extractReferencesFromType(checker, def, bestGuessOwningModule) {
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26 | if (!ts.isTupleTypeNode(def)) {
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27 | return [];
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28 | }
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29 | return def.elements.map(function (element) {
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30 | if (!ts.isTypeQueryNode(element)) {
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31 | throw new Error("Expected TypeQueryNode: " + typescript_1.nodeDebugInfo(element));
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32 | }
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33 | var type = element.exprName;
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34 | var _a = reflection_1.reflectTypeEntityToDeclaration(type, checker), node = _a.node, from = _a.from;
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35 | if (!reflection_1.isNamedClassDeclaration(node)) {
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36 | throw new Error("Expected named ClassDeclaration: " + typescript_1.nodeDebugInfo(node));
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37 | }
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38 | if (from !== null && !from.startsWith('.')) {
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39 | // The symbol was imported using an absolute module specifier so return a reference that
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40 | // uses that absolute module specifier as its best guess owning module.
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41 | return new imports_1.Reference(node, { specifier: from, resolutionContext: def.getSourceFile().fileName });
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42 | }
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43 | else {
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44 | // For local symbols or symbols that were imported using a relative module import it is
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45 | // assumed that the symbol is exported from the provided best guess owning module.
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46 | return new imports_1.Reference(node, bestGuessOwningModule);
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47 | }
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48 | });
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49 | }
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50 | exports.extractReferencesFromType = extractReferencesFromType;
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51 | function readStringType(type) {
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52 | if (!ts.isLiteralTypeNode(type) || !ts.isStringLiteral(type.literal)) {
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53 | return null;
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54 | }
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55 | return type.literal.text;
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56 | }
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57 | exports.readStringType = readStringType;
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58 | function readStringMapType(type) {
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59 | if (!ts.isTypeLiteralNode(type)) {
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60 | return {};
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61 | }
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62 | var obj = {};
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63 | type.members.forEach(function (member) {
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64 | if (!ts.isPropertySignature(member) || member.type === undefined || member.name === undefined ||
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65 | !ts.isStringLiteral(member.name)) {
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66 | return;
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67 | }
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68 | var value = readStringType(member.type);
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69 | if (value === null) {
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70 | return null;
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71 | }
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72 | obj[member.name.text] = value;
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73 | });
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74 | return obj;
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75 | }
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76 | exports.readStringMapType = readStringMapType;
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77 | function readStringArrayType(type) {
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78 | if (!ts.isTupleTypeNode(type)) {
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79 | return [];
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80 | }
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81 | var res = [];
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82 | type.elements.forEach(function (el) {
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83 | if (!ts.isLiteralTypeNode(el) || !ts.isStringLiteral(el.literal)) {
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84 | return;
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85 | }
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86 | res.push(el.literal.text);
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87 | });
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88 | return res;
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89 | }
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90 | exports.readStringArrayType = readStringArrayType;
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91 | /**
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92 | * Inspects the class' members and extracts the metadata that is used when type-checking templates
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93 | * that use the directive. This metadata does not contain information from a base class, if any,
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94 | * making this metadata invariant to changes of inherited classes.
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95 | */
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96 | function extractDirectiveTypeCheckMeta(node, inputs, reflector) {
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97 | var e_1, _a;
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98 | var members = reflector.getMembersOfClass(node);
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99 | var staticMembers = members.filter(function (member) { return member.isStatic; });
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100 | var ngTemplateGuards = staticMembers.map(extractTemplateGuard)
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101 | .filter(function (guard) { return guard !== null; });
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102 | var hasNgTemplateContextGuard = staticMembers.some(function (member) { return member.kind === reflection_1.ClassMemberKind.Method && member.name === 'ngTemplateContextGuard'; });
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103 | var coercedInputFields = new Set(staticMembers.map(extractCoercedInput)
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104 | .filter(function (inputName) { return inputName !== null; }));
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105 | var restrictedInputFields = new Set();
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106 | var stringLiteralInputFields = new Set();
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107 | var undeclaredInputFields = new Set();
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108 | var _loop_1 = function (classPropertyName) {
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109 | var field = members.find(function (member) { return member.name === classPropertyName; });
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110 | if (field === undefined || field.node === null) {
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111 | undeclaredInputFields.add(classPropertyName);
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112 | return "continue";
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113 | }
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114 | if (isRestricted(field.node)) {
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115 | restrictedInputFields.add(classPropertyName);
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116 | }
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117 | if (field.nameNode !== null && ts.isStringLiteral(field.nameNode)) {
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118 | stringLiteralInputFields.add(classPropertyName);
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119 | }
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120 | };
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121 | try {
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122 | for (var _b = tslib_1.__values(inputs.classPropertyNames), _c = _b.next(); !_c.done; _c = _b.next()) {
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123 | var classPropertyName = _c.value;
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124 | _loop_1(classPropertyName);
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125 | }
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126 | }
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127 | catch (e_1_1) { e_1 = { error: e_1_1 }; }
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128 | finally {
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129 | try {
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130 | if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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131 | }
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132 | finally { if (e_1) throw e_1.error; }
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133 | }
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134 | var arity = reflector.getGenericArityOfClass(node);
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135 | return {
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136 | hasNgTemplateContextGuard: hasNgTemplateContextGuard,
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137 | ngTemplateGuards: ngTemplateGuards,
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138 | coercedInputFields: coercedInputFields,
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139 | restrictedInputFields: restrictedInputFields,
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140 | stringLiteralInputFields: stringLiteralInputFields,
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141 | undeclaredInputFields: undeclaredInputFields,
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142 | isGeneric: arity !== null && arity > 0,
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143 | };
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144 | }
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145 | exports.extractDirectiveTypeCheckMeta = extractDirectiveTypeCheckMeta;
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146 | function isRestricted(node) {
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147 | if (node.modifiers === undefined) {
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148 | return false;
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149 | }
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150 | return node.modifiers.some(function (modifier) { return modifier.kind === ts.SyntaxKind.PrivateKeyword ||
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151 | modifier.kind === ts.SyntaxKind.ProtectedKeyword ||
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152 | modifier.kind === ts.SyntaxKind.ReadonlyKeyword; });
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153 | }
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154 | function extractTemplateGuard(member) {
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155 | if (!member.name.startsWith('ngTemplateGuard_')) {
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156 | return null;
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157 | }
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158 | var inputName = afterUnderscore(member.name);
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159 | if (member.kind === reflection_1.ClassMemberKind.Property) {
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160 | var type = null;
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161 | if (member.type !== null && ts.isLiteralTypeNode(member.type) &&
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162 | ts.isStringLiteral(member.type.literal)) {
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163 | type = member.type.literal.text;
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164 | }
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165 | // Only property members with string literal type 'binding' are considered as template guard.
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166 | if (type !== 'binding') {
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167 | return null;
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168 | }
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169 | return { inputName: inputName, type: type };
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170 | }
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171 | else if (member.kind === reflection_1.ClassMemberKind.Method) {
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172 | return { inputName: inputName, type: 'invocation' };
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173 | }
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174 | else {
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175 | return null;
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176 | }
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177 | }
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178 | function extractCoercedInput(member) {
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179 | if (member.kind !== reflection_1.ClassMemberKind.Property || !member.name.startsWith('ngAcceptInputType_')) {
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180 | return null;
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181 | }
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182 | return afterUnderscore(member.name);
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183 | }
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184 | /**
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185 | * A `MetadataReader` that reads from an ordered set of child readers until it obtains the requested
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186 | * metadata.
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187 | *
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188 | * This is used to combine `MetadataReader`s that read from different sources (e.g. from a registry
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189 | * and from .d.ts files).
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190 | */
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191 | var CompoundMetadataReader = /** @class */ (function () {
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192 | function CompoundMetadataReader(readers) {
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193 | this.readers = readers;
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194 | }
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195 | CompoundMetadataReader.prototype.getDirectiveMetadata = function (node) {
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196 | var e_2, _a;
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197 | try {
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198 | for (var _b = tslib_1.__values(this.readers), _c = _b.next(); !_c.done; _c = _b.next()) {
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199 | var reader = _c.value;
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200 | var meta = reader.getDirectiveMetadata(node);
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201 | if (meta !== null) {
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202 | return meta;
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203 | }
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204 | }
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205 | }
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206 | catch (e_2_1) { e_2 = { error: e_2_1 }; }
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207 | finally {
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208 | try {
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209 | if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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210 | }
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211 | finally { if (e_2) throw e_2.error; }
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212 | }
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213 | return null;
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214 | };
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215 | CompoundMetadataReader.prototype.getNgModuleMetadata = function (node) {
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216 | var e_3, _a;
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217 | try {
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218 | for (var _b = tslib_1.__values(this.readers), _c = _b.next(); !_c.done; _c = _b.next()) {
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219 | var reader = _c.value;
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220 | var meta = reader.getNgModuleMetadata(node);
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221 | if (meta !== null) {
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222 | return meta;
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223 | }
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224 | }
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225 | }
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226 | catch (e_3_1) { e_3 = { error: e_3_1 }; }
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227 | finally {
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228 | try {
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229 | if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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230 | }
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231 | finally { if (e_3) throw e_3.error; }
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232 | }
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233 | return null;
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234 | };
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235 | CompoundMetadataReader.prototype.getPipeMetadata = function (node) {
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236 | var e_4, _a;
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237 | try {
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238 | for (var _b = tslib_1.__values(this.readers), _c = _b.next(); !_c.done; _c = _b.next()) {
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239 | var reader = _c.value;
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240 | var meta = reader.getPipeMetadata(node);
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241 | if (meta !== null) {
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242 | return meta;
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243 | }
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244 | }
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245 | }
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246 | catch (e_4_1) { e_4 = { error: e_4_1 }; }
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247 | finally {
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248 | try {
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249 | if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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250 | }
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251 | finally { if (e_4) throw e_4.error; }
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252 | }
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253 | return null;
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254 | };
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255 | return CompoundMetadataReader;
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256 | }());
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257 | exports.CompoundMetadataReader = CompoundMetadataReader;
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258 | function afterUnderscore(str) {
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259 | var pos = str.indexOf('_');
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260 | if (pos === -1) {
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261 | throw new Error("Expected '" + str + "' to contain '_'");
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262 | }
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263 | return str.substr(pos + 1);
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264 | }
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265 | /** Returns whether a class declaration has the necessary class fields to make it injectable. */
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266 | function hasInjectableFields(clazz, host) {
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267 | var members = host.getMembersOfClass(clazz);
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268 | return members.some(function (_a) {
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269 | var isStatic = _a.isStatic, name = _a.name;
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270 | return isStatic && (name === 'ɵprov' || name === 'ɵfac');
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271 | });
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272 | }
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273 | exports.hasInjectableFields = hasInjectableFields;
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274 | });
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275 | //# 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(!ts.isTypeQueryNode(element)) {\n      throw new Error(`Expected TypeQueryNode: ${nodeDebugInfo(element)}`);\n    }\n    const type = element.exprName;\n    const {node, from} = reflectTypeEntityToDeclaration(type, checker);\n    if (!isNamedClassDeclaration(node)) {\n      throw new Error(`Expected named ClassDeclaration: ${nodeDebugInfo(node)}`);\n    }\n    if (from !== null && !from.startsWith('.')) {\n      // The symbol was imported using an absolute module specifier so return a reference that\n      // uses that absolute module specifier as its best guess owning module.\n      return new Reference(\n          node, {specifier: from, resolutionContext: def.getSourceFile().fileName});\n    } else {\n      // For local symbols or symbols that were imported using a relative module import it is\n      // assumed that the symbol is exported from the provided best guess owning module.\n      return new Reference(node, bestGuessOwningModule);\n    }\n  });\n}\n\nexport function readStringType(type: ts.TypeNode): string|null {\n  if (!ts.isLiteralTypeNode(type) || !ts.isStringLiteral(type.literal)) {\n    return null;\n  }\n  return type.literal.text;\n}\n\nexport function readStringMapType(type: ts.TypeNode): {[key: string]: string} {\n  if (!ts.isTypeLiteralNode(type)) {\n    return {};\n  }\n  const obj: {[key: string]: string} = {};\n  type.members.forEach(member => {\n    if (!ts.isPropertySignature(member) || member.type === undefined || member.name === undefined ||\n        !ts.isStringLiteral(member.name)) {\n      return;\n    }\n    const value = readStringType(member.type);\n    if (value === null) {\n      return null;\n    }\n    obj[member.name.text] = value;\n  });\n  return obj;\n}\n\nexport function readStringArrayType(type: ts.TypeNode): string[] {\n  if (!ts.isTupleTypeNode(type)) {\n    return [];\n  }\n  const res: string[] = [];\n  type.elements.forEach(el => {\n    if (!ts.isLiteralTypeNode(el) || !ts.isStringLiteral(el.literal)) {\n      return;\n    }\n    res.push(el.literal.text);\n  });\n  return res;\n}\n\n/**\n * Inspects the class' members and extracts the metadata that is used when type-checking templates\n * that use the directive. This metadata does not contain information from a base class, if any,\n * making this metadata invariant to changes of inherited classes.\n */\nexport function extractDirectiveTypeCheckMeta(\n    node: ClassDeclaration, inputs: ClassPropertyMapping,\n    reflector: ReflectionHost): DirectiveTypeCheckMeta {\n  const members = reflector.getMembersOfClass(node);\n  const staticMembers = members.filter(member => member.isStatic);\n  const ngTemplateGuards = staticMembers.map(extractTemplateGuard)\n                               .filter((guard): guard is TemplateGuardMeta => guard !== null);\n  const hasNgTemplateContextGuard = staticMembers.some(\n      member => member.kind === ClassMemberKind.Method && member.name === 'ngTemplateContextGuard');\n\n  const coercedInputFields =\n      new Set(staticMembers.map(extractCoercedInput)\n                  .filter((inputName): inputName is ClassPropertyName => inputName !== null));\n\n  const restrictedInputFields = new Set<ClassPropertyName>();\n  const stringLiteralInputFields = new Set<ClassPropertyName>();\n  const undeclaredInputFields = new Set<ClassPropertyName>();\n\n  for (const classPropertyName of inputs.classPropertyNames) {\n    const field = members.find(member => member.name === classPropertyName);\n    if (field === undefined || field.node === null) {\n      undeclaredInputFields.add(classPropertyName);\n      continue;\n    }\n    if (isRestricted(field.node)) {\n      restrictedInputFields.add(classPropertyName);\n    }\n    if (field.nameNode !== null && ts.isStringLiteral(field.nameNode)) {\n      stringLiteralInputFields.add(classPropertyName);\n    }\n  }\n\n  const arity = reflector.getGenericArityOfClass(node);\n\n  return {\n    hasNgTemplateContextGuard,\n    ngTemplateGuards,\n    coercedInputFields,\n    restrictedInputFields,\n    stringLiteralInputFields,\n    undeclaredInputFields,\n    isGeneric: arity !== null && arity > 0,\n  };\n}\n\nfunction isRestricted(node: ts.Node): boolean {\n  if (node.modifiers === undefined) {\n    return false;\n  }\n\n  return node.modifiers.some(\n      modifier => modifier.kind === ts.SyntaxKind.PrivateKeyword ||\n          modifier.kind === ts.SyntaxKind.ProtectedKeyword ||\n          modifier.kind === ts.SyntaxKind.ReadonlyKeyword);\n}\n\nfunction extractTemplateGuard(member: ClassMember): TemplateGuardMeta|null {\n  if (!member.name.startsWith('ngTemplateGuard_')) {\n    return null;\n  }\n  const inputName = afterUnderscore(member.name);\n  if (member.kind === ClassMemberKind.Property) {\n    let type: string|null = null;\n    if (member.type !== null && ts.isLiteralTypeNode(member.type) &&\n        ts.isStringLiteral(member.type.literal)) {\n      type = member.type.literal.text;\n    }\n\n    // Only property members with string literal type 'binding' are considered as template guard.\n    if (type !== 'binding') {\n      return null;\n    }\n    return {inputName, type};\n  } else if (member.kind === ClassMemberKind.Method) {\n    return {inputName, type: 'invocation'};\n  } else {\n    return null;\n  }\n}\n\nfunction extractCoercedInput(member: ClassMember): string|null {\n  if (member.kind !== ClassMemberKind.Property || !member.name.startsWith('ngAcceptInputType_')) {\n    return null!;\n  }\n  return afterUnderscore(member.name);\n}\n\n/**\n * A `MetadataReader` that reads from an ordered set of child readers until it obtains the requested\n * metadata.\n *\n * This is used to combine `MetadataReader`s that read from different sources (e.g. from a registry\n * and from .d.ts files).\n */\nexport class CompoundMetadataReader implements MetadataReader {\n  constructor(private readers: MetadataReader[]) {}\n\n  getDirectiveMetadata(node: Reference<ClassDeclaration<ts.Declaration>>): DirectiveMeta|null {\n    for (const reader of this.readers) {\n      const meta = reader.getDirectiveMetadata(node);\n      if (meta !== null) {\n        return meta;\n      }\n    }\n    return null;\n  }\n\n  getNgModuleMetadata(node: Reference<ClassDeclaration<ts.Declaration>>): NgModuleMeta|null {\n    for (const reader of this.readers) {\n      const meta = reader.getNgModuleMetadata(node);\n      if (meta !== null) {\n        return meta;\n      }\n    }\n    return null;\n  }\n  getPipeMetadata(node: Reference<ClassDeclaration<ts.Declaration>>): PipeMeta|null {\n    for (const reader of this.readers) {\n      const meta = reader.getPipeMetadata(node);\n      if (meta !== null) {\n        return meta;\n      }\n    }\n    return null;\n  }\n}\n\nfunction afterUnderscore(str: string): string {\n  const pos = str.indexOf('_');\n  if (pos === -1) {\n    throw new Error(`Expected '${str}' to contain '_'`);\n  }\n  return str.substr(pos + 1);\n}\n\n/** Returns whether a class declaration has the necessary class fields to make it injectable. */\nexport function hasInjectableFields(clazz: ClassDeclaration, host: ReflectionHost): boolean {\n  const members = host.getMembersOfClass(clazz);\n  return members.some(({isStatic, name}) => isStatic && (name === 'ɵprov' || name === 'ɵfac'));\n}\n"]} |
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