source: trip-planner-front/node_modules/@angular/core/schematics/migrations/undecorated-classes-with-di/ng_declaration_collector.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/core/schematics/migrations/undecorated-classes-with-di/ng_declaration_collector", ["require", "exports", "@angular/compiler-cli/src/ngtsc/imports", "typescript", "@angular/core/schematics/utils/ng_decorators", "@angular/core/schematics/utils/typescript/property_name"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.getNgClassDecorators = exports.hasNgDeclarationDecorator = exports.hasInjectableDecorator = exports.hasDirectiveDecorator = exports.NgDeclarationCollector = void 0;
    const imports_1 = require("@angular/compiler-cli/src/ngtsc/imports");
    const ts = require("typescript");
    const ng_decorators_1 = require("@angular/core/schematics/utils/ng_decorators");
    const property_name_1 = require("@angular/core/schematics/utils/typescript/property_name");
    /**
     * Visitor that walks through specified TypeScript nodes and collects all defined
     * directives and provider classes. Directives are separated by decorated and
     * undecorated directives.
     */
    class NgDeclarationCollector {
        constructor(typeChecker, evaluator) {
            this.typeChecker = typeChecker;
            this.evaluator = evaluator;
            /** List of resolved directives which are decorated. */
            this.decoratedDirectives = [];
            /** List of resolved providers which are decorated. */
            this.decoratedProviders = [];
            /** Set of resolved Angular declarations which are not decorated. */
            this.undecoratedDeclarations = new Set();
        }
        visitNode(node) {
            if (ts.isClassDeclaration(node)) {
                this._visitClassDeclaration(node);
            }
            ts.forEachChild(node, n => this.visitNode(n));
        }
        _visitClassDeclaration(node) {
            if (!node.decorators || !node.decorators.length) {
                return;
            }
            const ngDecorators = ng_decorators_1.getAngularDecorators(this.typeChecker, node.decorators);
            const ngModuleDecorator = ngDecorators.find(({ name }) => name === 'NgModule');
            if (hasDirectiveDecorator(node, this.typeChecker, ngDecorators)) {
                this.decoratedDirectives.push(node);
            }
            else if (hasInjectableDecorator(node, this.typeChecker, ngDecorators)) {
                this.decoratedProviders.push(node);
            }
            else if (ngModuleDecorator) {
                this._visitNgModuleDecorator(ngModuleDecorator);
            }
        }
        _visitNgModuleDecorator(decorator) {
            const decoratorCall = decorator.node.expression;
            const metadata = decoratorCall.arguments[0];
            if (!metadata || !ts.isObjectLiteralExpression(metadata)) {
                return;
            }
            let entryComponentsNode = null;
            let declarationsNode = null;
            metadata.properties.forEach(p => {
                if (!ts.isPropertyAssignment(p)) {
                    return;
                }
                const name = property_name_1.getPropertyNameText(p.name);
                if (name === 'entryComponents') {
                    entryComponentsNode = p.initializer;
                }
                else if (name === 'declarations') {
                    declarationsNode = p.initializer;
                }
            });
            // In case the module specifies the "entryComponents" field, walk through all
            // resolved entry components and collect the referenced directives.
            if (entryComponentsNode) {
                flattenTypeList(this.evaluator.evaluate(entryComponentsNode)).forEach(ref => {
                    if (ts.isClassDeclaration(ref.node) &&
                        !hasNgDeclarationDecorator(ref.node, this.typeChecker)) {
                        this.undecoratedDeclarations.add(ref.node);
                    }
                });
            }
            // In case the module specifies the "declarations" field, walk through all
            // resolved declarations and collect the referenced directives.
            if (declarationsNode) {
                flattenTypeList(this.evaluator.evaluate(declarationsNode)).forEach(ref => {
                    if (ts.isClassDeclaration(ref.node) &&
                        !hasNgDeclarationDecorator(ref.node, this.typeChecker)) {
                        this.undecoratedDeclarations.add(ref.node);
                    }
                });
            }
        }
    }
    exports.NgDeclarationCollector = NgDeclarationCollector;
    /** Flattens a list of type references. */
    function flattenTypeList(value) {
        if (Array.isArray(value)) {
            return value.reduce((res, v) => res.concat(flattenTypeList(v)), []);
        }
        else if (value instanceof imports_1.Reference) {
            return [value];
        }
        return [];
    }
    /** Checks whether the given node has the "@Directive" or "@Component" decorator set. */
    function hasDirectiveDecorator(node, typeChecker, ngDecorators) {
        return (ngDecorators || getNgClassDecorators(node, typeChecker))
            .some(({ name }) => name === 'Directive' || name === 'Component');
    }
    exports.hasDirectiveDecorator = hasDirectiveDecorator;
    /** Checks whether the given node has the "@Injectable" decorator set. */
    function hasInjectableDecorator(node, typeChecker, ngDecorators) {
        return (ngDecorators || getNgClassDecorators(node, typeChecker))
            .some(({ name }) => name === 'Injectable');
    }
    exports.hasInjectableDecorator = hasInjectableDecorator;
    /** Whether the given node has an explicit decorator that describes an Angular declaration. */
    function hasNgDeclarationDecorator(node, typeChecker) {
        return getNgClassDecorators(node, typeChecker)
            .some(({ name }) => name === 'Component' || name === 'Directive' || name === 'Pipe');
    }
    exports.hasNgDeclarationDecorator = hasNgDeclarationDecorator;
    /** Gets all Angular decorators of a given class declaration. */
    function getNgClassDecorators(node, typeChecker) {
        if (!node.decorators) {
            return [];
        }
        return ng_decorators_1.getAngularDecorators(typeChecker, node.decorators);
    }
    exports.getNgClassDecorators = getNgClassDecorators;
});
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Directives are separated by decorated and\n * undecorated directives.\n */\nexport class NgDeclarationCollector {\n  /** List of resolved directives which are decorated. */\n  decoratedDirectives: ts.ClassDeclaration[] = [];\n\n  /** List of resolved providers which are decorated. */\n  decoratedProviders: ts.ClassDeclaration[] = [];\n\n  /** Set of resolved Angular declarations which are not decorated. */\n  undecoratedDeclarations = new Set<ts.ClassDeclaration>();\n\n  constructor(public typeChecker: ts.TypeChecker, private evaluator: PartialEvaluator) {}\n\n  visitNode(node: ts.Node) {\n    if (ts.isClassDeclaration(node)) {\n      this._visitClassDeclaration(node);\n    }\n\n    ts.forEachChild(node, n => this.visitNode(n));\n  }\n\n  private _visitClassDeclaration(node: ts.ClassDeclaration) {\n    if (!node.decorators || !node.decorators.length) {\n      return;\n    }\n\n    const ngDecorators = getAngularDecorators(this.typeChecker, node.decorators);\n    const ngModuleDecorator = ngDecorators.find(({name}) => name === 'NgModule');\n\n    if (hasDirectiveDecorator(node, this.typeChecker, ngDecorators)) {\n      this.decoratedDirectives.push(node);\n    } else if (hasInjectableDecorator(node, this.typeChecker, ngDecorators)) {\n      this.decoratedProviders.push(node);\n    } else if (ngModuleDecorator) {\n      this._visitNgModuleDecorator(ngModuleDecorator);\n    }\n  }\n\n  private _visitNgModuleDecorator(decorator: NgDecorator) {\n    const decoratorCall = decorator.node.expression;\n    const metadata = decoratorCall.arguments[0];\n\n    if (!metadata || !ts.isObjectLiteralExpression(metadata)) {\n      return;\n    }\n\n    let entryComponentsNode: ts.Expression|null = null;\n    let declarationsNode: ts.Expression|null = null;\n\n    metadata.properties.forEach(p => {\n      if (!ts.isPropertyAssignment(p)) {\n        return;\n      }\n\n      const name = getPropertyNameText(p.name);\n\n      if (name === 'entryComponents') {\n        entryComponentsNode = p.initializer;\n      } else if (name === 'declarations') {\n        declarationsNode = p.initializer;\n      }\n    });\n\n    // In case the module specifies the \"entryComponents\" field, walk through all\n    // resolved entry components and collect the referenced directives.\n    if (entryComponentsNode) {\n      flattenTypeList(this.evaluator.evaluate(entryComponentsNode)).forEach(ref => {\n        if (ts.isClassDeclaration(ref.node) &&\n            !hasNgDeclarationDecorator(ref.node, this.typeChecker)) {\n          this.undecoratedDeclarations.add(ref.node);\n        }\n      });\n    }\n\n    // In case the module specifies the \"declarations\" field, walk through all\n    // resolved declarations and collect the referenced directives.\n    if (declarationsNode) {\n      flattenTypeList(this.evaluator.evaluate(declarationsNode)).forEach(ref => {\n        if (ts.isClassDeclaration(ref.node) &&\n            !hasNgDeclarationDecorator(ref.node, this.typeChecker)) {\n          this.undecoratedDeclarations.add(ref.node);\n        }\n      });\n    }\n  }\n}\n\n/** Flattens a list of type references. */\nfunction flattenTypeList(value: ResolvedValue): Reference[] {\n  if (Array.isArray(value)) {\n    return <Reference[]>value.reduce(\n        (res: Reference[], v: ResolvedValue) => res.concat(flattenTypeList(v)), []);\n  } else if (value instanceof Reference) {\n    return [value];\n  }\n  return [];\n}\n\n/** Checks whether the given node has the \"@Directive\" or \"@Component\" decorator set. */\nexport function hasDirectiveDecorator(\n    node: ts.ClassDeclaration, typeChecker: ts.TypeChecker, ngDecorators?: NgDecorator[]): boolean {\n  return (ngDecorators || getNgClassDecorators(node, typeChecker))\n      .some(({name}) => name === 'Directive' || name === 'Component');\n}\n\n\n\n/** Checks whether the given node has the \"@Injectable\" decorator set. */\nexport function hasInjectableDecorator(\n    node: ts.ClassDeclaration, typeChecker: ts.TypeChecker, ngDecorators?: NgDecorator[]): boolean {\n  return (ngDecorators || getNgClassDecorators(node, typeChecker))\n      .some(({name}) => name === 'Injectable');\n}\n/** Whether the given node has an explicit decorator that describes an Angular declaration. */\nexport function hasNgDeclarationDecorator(node: ts.ClassDeclaration, typeChecker: ts.TypeChecker) {\n  return getNgClassDecorators(node, typeChecker)\n      .some(({name}) => name === 'Component' || name === 'Directive' || name === 'Pipe');\n}\n\n/** Gets all Angular decorators of a given class declaration. */\nexport function getNgClassDecorators(\n    node: ts.ClassDeclaration, typeChecker: ts.TypeChecker): NgDecorator[] {\n  if (!node.decorators) {\n    return [];\n  }\n  return getAngularDecorators(typeChecker, node.decorators);\n}\n"]}