init

node_modules/@angular/cdk/schematics/utils/ast/ng-module-imports.d.ts

@@ -0,0 +1,12 @@
+/**
+ * @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.dev/license
+ */
+import { Tree } from '@angular-devkit/schematics';
+/**
+ * Whether the Angular module in the given path imports the specified module class name.
+ */
+export declare function hasNgModuleImport(tree: Tree, modulePath: string, className: string): boolean;

node_modules/@angular/cdk/schematics/utils/ast/ng-module-imports.js

@@ -0,0 +1,82 @@
+"use strict";
+/**
+ * @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.dev/license
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.hasNgModuleImport = hasNgModuleImport;
+const schematics_1 = require("@angular-devkit/schematics");
+const ts = require("typescript");
+/**
+ * Whether the Angular module in the given path imports the specified module class name.
+ */
+function hasNgModuleImport(tree, modulePath, className) {
+    const moduleFileContent = tree.read(modulePath);
+    if (!moduleFileContent) {
+        throw new schematics_1.SchematicsException(`Could not read Angular module file: ${modulePath}`);
+    }
+    const parsedFile = ts.createSourceFile(modulePath, moduleFileContent.toString(), ts.ScriptTarget.Latest, true);
+    const ngModuleMetadata = findNgModuleMetadata(parsedFile);
+    if (!ngModuleMetadata) {
+        throw new schematics_1.SchematicsException(`Could not find NgModule declaration inside: "${modulePath}"`);
+    }
+    for (let property of ngModuleMetadata.properties) {
+        if (!ts.isPropertyAssignment(property) ||
+            property.name.getText() !== 'imports' ||
+            !ts.isArrayLiteralExpression(property.initializer)) {
+            continue;
+        }
+        if (property.initializer.elements.some(element => element.getText() === className)) {
+            return true;
+        }
+    }
+    return false;
+}
+/**
+ * Resolves the last identifier that is part of the given expression. This helps resolving
+ * identifiers of nested property access expressions (e.g. myNamespace.core.NgModule).
+ */
+function resolveIdentifierOfExpression(expression) {
+    if (ts.isIdentifier(expression)) {
+        return expression;
+    }
+    else if (ts.isPropertyAccessExpression(expression) && ts.isIdentifier(expression.name)) {
+        return expression.name;
+    }
+    return null;
+}
+/**
+ * Finds a NgModule declaration within the specified TypeScript node and returns the
+ * corresponding metadata for it. This function searches breadth first because
+ * NgModule's are usually not nested within other expressions or declarations.
+ */
+function findNgModuleMetadata(rootNode) {
+    // Add immediate child nodes of the root node to the queue.
+    const nodeQueue = [...rootNode.getChildren()];
+    while (nodeQueue.length) {
+        const node = nodeQueue.shift();
+        if (ts.isDecorator(node) &&
+            ts.isCallExpression(node.expression) &&
+            isNgModuleCallExpression(node.expression)) {
+            return node.expression.arguments[0];
+        }
+        else {
+            nodeQueue.push(...node.getChildren());
+        }
+    }
+    return null;
+}
+/** Whether the specified call expression is referring to a NgModule definition. */
+function isNgModuleCallExpression(callExpression) {
+    if (!callExpression.arguments.length ||
+        !ts.isObjectLiteralExpression(callExpression.arguments[0])) {
+        return false;
+    }
+    // The `NgModule` call expression name is never referring to a `PrivateIdentifier`.
+    const decoratorIdentifier = resolveIdentifierOfExpression(callExpression.expression);
+    return decoratorIdentifier ? decoratorIdentifier.text === 'NgModule' : false;
+}
+//# sourceMappingURL=ng-module-imports.js.map

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