实例化typescript中目录中的所有类

import * as fs from 'fs';
import * as path from 'path';
import * as ts from 'typescript';

// 获取目录下所有 TypeScript 文件
function getFiles(dir: string): string[] {
  const files: string[] = [];
  const dirents = fs.readdirSync(dir, { withFileTypes: true });
  for (const dirent of dirents) {
    const filePath = path.join(dir, dirent.name);
    if (dirent.isDirectory()) {
      files.push(...getFiles(filePath));
    } else if (dirent.isFile() && filePath.endsWith('.ts')) {
      files.push(filePath);
    }
  }
  return files;
}

// 解析 TypeScript 文件
function parseFiles(files: string[]): ts.Node[] {
  const program = ts.createProgram(files, {});
  const checker = program.getTypeChecker();
  const sourceFiles = program.getSourceFiles();
  const classes: ts.Node[] = [];

  for (const sourceFile of sourceFiles) {
    if (!sourceFile.isDeclarationFile) {
      ts.forEachChild(sourceFile, visit);
    }
  }

  function visit(node: ts.Node) {
    if (ts.isClassDeclaration(node) && node.name) {
      classes.push(node);
    }
    ts.forEachChild(node, visit);
  }

  return classes;
}

// 实例化类
function instantiateClasses(classes: ts.Node[]) {
  for (const clazz of classes) {
    const className = clazz.name!.getText();
    const instance = eval(`new ${className}()`); // 使用 eval 实例化类
    console.log(`Instantiated class: ${className}`);
    console.log(instance);

    // 可以根据需要调用类的方法或者访问类的属性
    // instance.someMethod();
    // instance.someProperty;
  }
}

// 入口函数
function instantiateClassesInDirectory(directory: string) {
  const files = getFiles(directory);
  const classes = parseFiles(files);
  instantiateClasses(classes);
}

// 使用示例
const directoryPath = './src';
instantiateClassesInDirectory(directoryPath);