28 lines
884 B
TypeScript
28 lines
884 B
TypeScript
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import * as ts from 'typescript';
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/**
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* Finds all module references in the specified source file.
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* @param node Source file which should be parsed.
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* @returns List of import specifiers in the source file.
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*/
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export function getModuleReferences(node: ts.SourceFile): string[] {
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const references: string[] = [];
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const visitNode = (node: ts.Node) => {
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if ((ts.isImportDeclaration(node) || ts.isExportDeclaration(node)) &&
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node.moduleSpecifier !== undefined && ts.isStringLiteral(node.moduleSpecifier)) {
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references.push(node.moduleSpecifier.text);
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}
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ts.forEachChild(node, visitNode);
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};
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ts.forEachChild(node, visitNode);
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return references;
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}
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