(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/missing_injectable_migration", ["require", "exports", "tslib", "@angular/compiler-cli/src/ngtsc/annotations", "@angular/compiler-cli/src/ngtsc/imports", "@angular/compiler-cli/ngcc/src/migrations/utils"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var tslib_1 = require("tslib");
    var annotations_1 = require("@angular/compiler-cli/src/ngtsc/annotations");
    var imports_1 = require("@angular/compiler-cli/src/ngtsc/imports");
    var utils_1 = require("@angular/compiler-cli/ngcc/src/migrations/utils");
    /**
     * Ensures that classes that are provided as an Angular service in either `NgModule.providers` or
     * `Directive.providers`/`Component.viewProviders` are decorated with one of the `@Injectable`,
     * `@Directive`, `@Component` or `@Pipe` decorators, adding an `@Injectable()` decorator when none
     * are present.
     *
     * At least one decorator is now mandatory, as otherwise the compiler would not compile an
     * injectable definition for the service. This is unlike View Engine, where having just an unrelated
     * decorator may have been sufficient for the service to become injectable.
     *
     * In essence, this migration operates on classes that are themselves an NgModule, Directive or
     * Component. Their metadata is statically evaluated so that their "providers"/"viewProviders"
     * properties can be analyzed. For any provider that refers to an undecorated class, the class will
     * be migrated to have an `@Injectable()` decorator.
     *
     * This implementation mirrors the "missing-injectable" schematic.
     */
    var MissingInjectableMigration = /** @class */ (function () {
        function MissingInjectableMigration() {
        }
        MissingInjectableMigration.prototype.apply = function (clazz, host) {
            var e_1, _a;
            var decorators = host.reflectionHost.getDecoratorsOfDeclaration(clazz);
            if (decorators === null) {
                return null;
            }
            try {
                for (var decorators_1 = tslib_1.__values(decorators), decorators_1_1 = decorators_1.next(); !decorators_1_1.done; decorators_1_1 = decorators_1.next()) {
                    var decorator = decorators_1_1.value;
                    var name = getAngularCoreDecoratorName(decorator);
                    if (name === 'NgModule') {
                        migrateNgModuleProviders(decorator, host);
                    }
                    else if (name === 'Directive') {
                        migrateDirectiveProviders(decorator, host, /* isComponent */ false);
                    }
                    else if (name === 'Component') {
                        migrateDirectiveProviders(decorator, host, /* isComponent */ true);
                    }
                }
            }
            catch (e_1_1) { e_1 = { error: e_1_1 }; }
            finally {
                try {
                    if (decorators_1_1 && !decorators_1_1.done && (_a = decorators_1.return)) _a.call(decorators_1);
                }
                finally { if (e_1) throw e_1.error; }
            }
            return null;
        };
        return MissingInjectableMigration;
    }());
    exports.MissingInjectableMigration = MissingInjectableMigration;
    /**
     * Iterates through all `NgModule.providers` and adds the `@Injectable()` decorator to any provider
     * that is not otherwise decorated.
     */
    function migrateNgModuleProviders(decorator, host) {
        if (decorator.args === null || decorator.args.length !== 1) {
            return;
        }
        var metadata = host.evaluator.evaluate(decorator.args[0], annotations_1.forwardRefResolver);
        if (!(metadata instanceof Map)) {
            return;
        }
        migrateProviders(metadata, 'providers', host);
        // TODO(alxhub): we should probably also check for `ModuleWithProviders` here.
    }
    /**
     * Iterates through all `Directive.providers` and if `isComponent` is set to true also
     * `Component.viewProviders` and adds the `@Injectable()` decorator to any provider that is not
     * otherwise decorated.
     */
    function migrateDirectiveProviders(decorator, host, isComponent) {
        if (decorator.args === null || decorator.args.length !== 1) {
            return;
        }
        var metadata = host.evaluator.evaluate(decorator.args[0], annotations_1.forwardRefResolver);
        if (!(metadata instanceof Map)) {
            return;
        }
        migrateProviders(metadata, 'providers', host);
        if (isComponent) {
            migrateProviders(metadata, 'viewProviders', host);
        }
    }
    /**
     * Given an object with decorator metadata, iterates through the list of providers to add
     * `@Injectable()` to any provider that is not otherwise decorated.
     */
    function migrateProviders(metadata, field, host) {
        var e_2, _a;
        if (!metadata.has(field)) {
            return;
        }
        var providers = metadata.get(field);
        if (!Array.isArray(providers)) {
            return;
        }
        try {
            for (var providers_1 = tslib_1.__values(providers), providers_1_1 = providers_1.next(); !providers_1_1.done; providers_1_1 = providers_1.next()) {
                var provider = providers_1_1.value;
                migrateProvider(provider, host);
            }
        }
        catch (e_2_1) { e_2 = { error: e_2_1 }; }
        finally {
            try {
                if (providers_1_1 && !providers_1_1.done && (_a = providers_1.return)) _a.call(providers_1);
            }
            finally { if (e_2) throw e_2.error; }
        }
    }
    /**
     * Analyzes a single provider entry and determines the class that is required to have an
     * `@Injectable()` decorator.
     */
    function migrateProvider(provider, host) {
        var e_3, _a;
        if (provider instanceof Map) {
            if (!provider.has('provide') || provider.has('useValue') || provider.has('useFactory') ||
                provider.has('useExisting')) {
                return;
            }
            if (provider.has('useClass')) {
                // {provide: ..., useClass: SomeClass, deps: [...]} does not require a decorator on SomeClass,
                // as the provider itself configures 'deps'. Only if 'deps' is missing will this require a
                // factory to exist on SomeClass.
                if (!provider.has('deps')) {
                    migrateProviderClass(provider.get('useClass'), host);
                }
            }
            else {
                migrateProviderClass(provider.get('provide'), host);
            }
        }
        else if (Array.isArray(provider)) {
            try {
                for (var provider_1 = tslib_1.__values(provider), provider_1_1 = provider_1.next(); !provider_1_1.done; provider_1_1 = provider_1.next()) {
                    var v = provider_1_1.value;
                    migrateProvider(v, host);
                }
            }
            catch (e_3_1) { e_3 = { error: e_3_1 }; }
            finally {
                try {
                    if (provider_1_1 && !provider_1_1.done && (_a = provider_1.return)) _a.call(provider_1);
                }
                finally { if (e_3) throw e_3.error; }
            }
        }
        else {
            migrateProviderClass(provider, host);
        }
    }
    /**
     * Given a provider class, adds the `@Injectable()` decorator if no other relevant Angular decorator
     * is present on the class.
     */
    function migrateProviderClass(provider, host) {
        // Providers that do not refer to a class cannot be migrated.
        if (!(provider instanceof imports_1.Reference)) {
            return;
        }
        var clazz = provider.node;
        if (utils_1.isClassDeclaration(clazz) && host.isInScope(clazz) && needsInjectableDecorator(clazz, host)) {
            host.injectSyntheticDecorator(clazz, utils_1.createInjectableDecorator(clazz));
        }
    }
    var NO_MIGRATE_DECORATORS = new Set(['Injectable', 'Directive', 'Component', 'Pipe']);
    /**
     * Determines if the given class needs to be decorated with `@Injectable()` based on whether it
     * already has an Angular decorator applied.
     */
    function needsInjectableDecorator(clazz, host) {
        var e_4, _a;
        var decorators = host.getAllDecorators(clazz);
        if (decorators === null) {
            return true;
        }
        try {
            for (var decorators_2 = tslib_1.__values(decorators), decorators_2_1 = decorators_2.next(); !decorators_2_1.done; decorators_2_1 = decorators_2.next()) {
                var decorator = decorators_2_1.value;
                var name = getAngularCoreDecoratorName(decorator);
                if (name !== null && NO_MIGRATE_DECORATORS.has(name)) {
                    return false;
                }
            }
        }
        catch (e_4_1) { e_4 = { error: e_4_1 }; }
        finally {
            try {
                if (decorators_2_1 && !decorators_2_1.done && (_a = decorators_2.return)) _a.call(decorators_2);
            }
            finally { if (e_4) throw e_4.error; }
        }
        return true;
    }
    /**
     * Determines the original name of a decorator if it is from '@angular/core'. For other decorators,
     * null is returned.
     */
    function getAngularCoreDecoratorName(decorator) {
        if (decorator.import === null || decorator.import.from !== '@angular/core') {
            return null;
        }
        return decorator.import.name;
    }
    exports.getAngularCoreDecoratorName = getAngularCoreDecoratorName;
});
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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 */\nimport * as ts from 'typescript';\n\nimport {forwardRefResolver} from '../../../src/ngtsc/annotations';\nimport {Reference} from '../../../src/ngtsc/imports';\nimport {ResolvedValue, ResolvedValueMap} from '../../../src/ngtsc/partial_evaluator';\nimport {ClassDeclaration, Decorator} from '../../../src/ngtsc/reflection';\n\nimport {Migration, MigrationHost} from './migration';\nimport {createInjectableDecorator, isClassDeclaration} from './utils';\n\n/**\n * Ensures that classes that are provided as an Angular service in either `NgModule.providers` or\n * `Directive.providers`/`Component.viewProviders` are decorated with one of the `@Injectable`,\n * `@Directive`, `@Component` or `@Pipe` decorators, adding an `@Injectable()` decorator when none\n * are present.\n *\n * At least one decorator is now mandatory, as otherwise the compiler would not compile an\n * injectable definition for the service. This is unlike View Engine, where having just an unrelated\n * decorator may have been sufficient for the service to become injectable.\n *\n * In essence, this migration operates on classes that are themselves an NgModule, Directive or\n * Component. Their metadata is statically evaluated so that their \"providers\"/\"viewProviders\"\n * properties can be analyzed. For any provider that refers to an undecorated class, the class will\n * be migrated to have an `@Injectable()` decorator.\n *\n * This implementation mirrors the \"missing-injectable\" schematic.\n */\nexport class MissingInjectableMigration implements Migration {\n  apply(clazz: ClassDeclaration, host: MigrationHost): ts.Diagnostic|null {\n    const decorators = host.reflectionHost.getDecoratorsOfDeclaration(clazz);\n    if (decorators === null) {\n      return null;\n    }\n\n    for (const decorator of decorators) {\n      const name = getAngularCoreDecoratorName(decorator);\n      if (name === 'NgModule') {\n        migrateNgModuleProviders(decorator, host);\n      } else if (name === 'Directive') {\n        migrateDirectiveProviders(decorator, host, /* isComponent */ false);\n      } else if (name === 'Component') {\n        migrateDirectiveProviders(decorator, host, /* isComponent */ true);\n      }\n    }\n\n    return null;\n  }\n}\n\n/**\n * Iterates through all `NgModule.providers` and adds the `@Injectable()` decorator to any provider\n * that is not otherwise decorated.\n */\nfunction migrateNgModuleProviders(decorator: Decorator, host: MigrationHost): void {\n  if (decorator.args === null || decorator.args.length !== 1) {\n    return;\n  }\n\n  const metadata = host.evaluator.evaluate(decorator.args[0], forwardRefResolver);\n  if (!(metadata instanceof Map)) {\n    return;\n  }\n\n  migrateProviders(metadata, 'providers', host);\n  // TODO(alxhub): we should probably also check for `ModuleWithProviders` here.\n}\n\n/**\n * Iterates through all `Directive.providers` and if `isComponent` is set to true also\n * `Component.viewProviders` and adds the `@Injectable()` decorator to any provider that is not\n * otherwise decorated.\n */\nfunction migrateDirectiveProviders(\n    decorator: Decorator, host: MigrationHost, isComponent: boolean): void {\n  if (decorator.args === null || decorator.args.length !== 1) {\n    return;\n  }\n\n  const metadata = host.evaluator.evaluate(decorator.args[0], forwardRefResolver);\n  if (!(metadata instanceof Map)) {\n    return;\n  }\n\n  migrateProviders(metadata, 'providers', host);\n  if (isComponent) {\n    migrateProviders(metadata, 'viewProviders', host);\n  }\n}\n\n/**\n * Given an object with decorator metadata, iterates through the list of providers to add\n * `@Injectable()` to any provider that is not otherwise decorated.\n */\nfunction migrateProviders(metadata: ResolvedValueMap, field: string, host: MigrationHost): void {\n  if (!metadata.has(field)) {\n    return;\n  }\n  const providers = metadata.get(field) !;\n  if (!Array.isArray(providers)) {\n    return;\n  }\n\n  for (const provider of providers) {\n    migrateProvider(provider, host);\n  }\n}\n\n/**\n * Analyzes a single provider entry and determines the class that is required to have an\n * `@Injectable()` decorator.\n */\nfunction migrateProvider(provider: ResolvedValue, host: MigrationHost): void {\n  if (provider instanceof Map) {\n    if (!provider.has('provide') || provider.has('useValue') || provider.has('useFactory') ||\n        provider.has('useExisting')) {\n      return;\n    }\n    if (provider.has('useClass')) {\n      // {provide: ..., useClass: SomeClass, deps: [...]} does not require a decorator on SomeClass,\n      // as the provider itself configures 'deps'. Only if 'deps' is missing will this require a\n      // factory to exist on SomeClass.\n      if (!provider.has('deps')) {\n        migrateProviderClass(provider.get('useClass') !, host);\n      }\n    } else {\n      migrateProviderClass(provider.get('provide') !, host);\n    }\n  } else if (Array.isArray(provider)) {\n    for (const v of provider) {\n      migrateProvider(v, host);\n    }\n  } else {\n    migrateProviderClass(provider, host);\n  }\n}\n\n/**\n * Given a provider class, adds the `@Injectable()` decorator if no other relevant Angular decorator\n * is present on the class.\n */\nfunction migrateProviderClass(provider: ResolvedValue, host: MigrationHost): void {\n  // Providers that do not refer to a class cannot be migrated.\n  if (!(provider instanceof Reference)) {\n    return;\n  }\n\n  const clazz = provider.node as ts.Declaration;\n  if (isClassDeclaration(clazz) && host.isInScope(clazz) && needsInjectableDecorator(clazz, host)) {\n    host.injectSyntheticDecorator(clazz, createInjectableDecorator(clazz));\n  }\n}\n\nconst NO_MIGRATE_DECORATORS = new Set(['Injectable', 'Directive', 'Component', 'Pipe']);\n\n/**\n * Determines if the given class needs to be decorated with `@Injectable()` based on whether it\n * already has an Angular decorator applied.\n */\nfunction needsInjectableDecorator(clazz: ClassDeclaration, host: MigrationHost): boolean {\n  const decorators = host.getAllDecorators(clazz);\n  if (decorators === null) {\n    return true;\n  }\n\n  for (const decorator of decorators) {\n    const name = getAngularCoreDecoratorName(decorator);\n    if (name !== null && NO_MIGRATE_DECORATORS.has(name)) {\n      return false;\n    }\n  }\n\n  return true;\n}\n\n/**\n * Determines the original name of a decorator if it is from '@angular/core'. For other decorators,\n * null is returned.\n */\nexport function getAngularCoreDecoratorName(decorator: Decorator): string|null {\n  if (decorator.import === null || decorator.import.from !== '@angular/core') {\n    return null;\n  }\n\n  return decorator.import.name;\n}\n"]}