TypeScript编译器接口:如何获取父类名称？

import * as ts from 'typescript';

// 读取TypeScript代码文件
const fileName = 'path/to/your/file.ts';
const sourceCode = ts.readFileSync(fileName, 'utf-8');

// 创建编译器选项
const compilerOptions: ts.CompilerOptions = {
  target: ts.ScriptTarget.ES5,
  module: ts.ModuleKind.CommonJS,
};

// 创建语言服务
const languageService = ts.createLanguageService({
  getCompilationSettings: () => compilerOptions,
  getScriptFileNames: () => [fileName],
  getScriptVersion: () => '0',
  getScriptSnapshot: (name) => {
    if (name === fileName) {
      return ts.ScriptSnapshot.fromString(sourceCode);
    }
    return undefined;
  },
});

// 获取语法树
const program = languageService.getProgram();
const sourceFile = program.getSourceFile(fileName);

// 遍历语法树
ts.forEachChild(sourceFile, (node) => {
  if (ts.isClassDeclaration(node)) {
    // 获取类的继承信息
    const heritageClauses = node.heritageClauses;
    if (heritageClauses) {
      for (const clause of heritageClauses) {
        if (clause.token === ts.SyntaxKind.ExtendsKeyword) {
          // 获取父类名称
          const parentClassName = clause.types[0].expression.getText();
          console.log('Parent class name:', parentClassName);
        }
      }
    }
  }
});