1/* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import type { HeritageClause, Node, SourceFile } from 'typescript'; 17import { SyntaxKind } from 'typescript'; 18 19/** 20 * get heritage info 21 * @param node 22 * @param sourceFile 23 * @returns 24 */ 25export function getHeritageClauseDeclaration(node: Node, sourceFile: SourceFile): HeritageClauseEntity { 26 const heritageClauseNode = node as HeritageClause; 27 const clauseToken = heritageClauseNode.token === SyntaxKind.ExtendsKeyword ? 'extends' : 'implements'; 28 const types: Array<string> = []; 29 30 heritageClauseNode.types.forEach(value => { 31 types.push(sourceFile.text.substring(value.pos, value.end).trim()); 32 }); 33 34 return { 35 clauseToken: clauseToken, 36 types: types 37 }; 38} 39 40export interface HeritageClauseEntity { 41 clauseToken: string, 42 types: Array<string> 43} 44