source: trip-planner-front/node_modules/@angular/compiler-cli/ngcc/src/migrations/undecorated_child_migration.js@ 6a3a178

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define("@angular/compiler-cli/ngcc/src/migrations/undecorated_child_migration", ["require", "exports", "tslib", "@angular/compiler-cli/src/ngtsc/annotations/src/util", "@angular/compiler-cli/src/ngtsc/imports", "@angular/compiler-cli/src/ngtsc/transform", "@angular/compiler-cli/ngcc/src/migrations/utils"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.UndecoratedChildMigration = void 0;
    var tslib_1 = require("tslib");
    var util_1 = require("@angular/compiler-cli/src/ngtsc/annotations/src/util");
    var imports_1 = require("@angular/compiler-cli/src/ngtsc/imports");
    var transform_1 = require("@angular/compiler-cli/src/ngtsc/transform");
    var utils_1 = require("@angular/compiler-cli/ngcc/src/migrations/utils");
    var UndecoratedChildMigration = /** @class */ (function () {
        function UndecoratedChildMigration() {
        }
        UndecoratedChildMigration.prototype.apply = function (clazz, host) {
            var e_1, _a;
            // This migration looks at NgModules and considers the directives (and pipes) it declares.
            // It verifies that these classes have decorators.
            var moduleMeta = host.metadata.getNgModuleMetadata(new imports_1.Reference(clazz));
            if (moduleMeta === null) {
                // Not an NgModule; don't care.
                return null;
            }
            try {
                // Examine each of the declarations to see if it needs to be migrated.
                for (var _b = tslib_1.__values(moduleMeta.declarations), _c = _b.next(); !_c.done; _c = _b.next()) {
                    var decl = _c.value;
                    this.maybeMigrate(decl, host);
                }
            }
            catch (e_1_1) { e_1 = { error: e_1_1 }; }
            finally {
                try {
                    if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
                }
                finally { if (e_1) throw e_1.error; }
            }
            return null;
        };
        UndecoratedChildMigration.prototype.maybeMigrate = function (ref, host) {
            if (utils_1.hasDirectiveDecorator(host, ref.node) || utils_1.hasPipeDecorator(host, ref.node)) {
                // Stop if one of the classes in the chain is actually decorated with @Directive, @Component,
                // or @Pipe.
                return;
            }
            var baseRef = util_1.readBaseClass(ref.node, host.reflectionHost, host.evaluator);
            if (baseRef === null) {
                // Stop: can't migrate a class with no parent.
                return;
            }
            else if (baseRef === 'dynamic') {
                // Stop: can't migrate a class with an indeterminate parent.
                return;
            }
            // Apply the migration recursively, to handle inheritance chains.
            this.maybeMigrate(baseRef, host);
            // After the above call, `host.metadata` should have metadata for the base class, if indeed this
            // is a directive inheritance chain.
            var baseMeta = host.metadata.getDirectiveMetadata(baseRef);
            if (baseMeta === null) {
                // Stop: this isn't a directive inheritance chain after all.
                return;
            }
            // Otherwise, decorate the class with @Component() or @Directive(), as appropriate.
            if (baseMeta.isComponent) {
                host.injectSyntheticDecorator(ref.node, utils_1.createComponentDecorator(ref.node, baseMeta), transform_1.HandlerFlags.FULL_INHERITANCE);
            }
            else {
                host.injectSyntheticDecorator(ref.node, utils_1.createDirectiveDecorator(ref.node, baseMeta), transform_1.HandlerFlags.FULL_INHERITANCE);
            }
            // Success!
        };
        return UndecoratedChildMigration;
    }());
    exports.UndecoratedChildMigration = UndecoratedChildMigration;
});
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