@angular/cdk
Version:
Angular Material Component Development Kit
53 lines • 2.04 kB
JavaScript
;
/**
* @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.isImportSpecifierNode = isImportSpecifierNode;
exports.isExportSpecifierNode = isExportSpecifierNode;
exports.isNamespaceImportNode = isNamespaceImportNode;
exports.getImportDeclaration = getImportDeclaration;
exports.getExportDeclaration = getExportDeclaration;
const ts = require("typescript");
/** Checks whether the given node is part of an import specifier node. */
function isImportSpecifierNode(node) {
return isPartOfKind(node, ts.SyntaxKind.ImportSpecifier);
}
/** Checks whether the given node is part of an export specifier node. */
function isExportSpecifierNode(node) {
return isPartOfKind(node, ts.SyntaxKind.ExportSpecifier);
}
/** Checks whether the given node is part of a namespace import. */
function isNamespaceImportNode(node) {
return isPartOfKind(node, ts.SyntaxKind.NamespaceImport);
}
/** Finds the parent import declaration of a given TypeScript node. */
function getImportDeclaration(node) {
return findDeclaration(node, ts.SyntaxKind.ImportDeclaration);
}
/** Finds the parent export declaration of a given TypeScript node */
function getExportDeclaration(node) {
return findDeclaration(node, ts.SyntaxKind.ExportDeclaration);
}
/** Finds the specified declaration for the given node by walking up the TypeScript nodes. */
function findDeclaration(node, kind) {
while (node.kind !== kind) {
node = node.parent;
}
return node;
}
/** Checks whether the given node is part of another TypeScript Node with the specified kind. */
function isPartOfKind(node, kind) {
if (node.kind === kind) {
return true;
}
else if (node.kind === ts.SyntaxKind.SourceFile) {
return false;
}
return isPartOfKind(node.parent, kind);
}
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