如何使用typescript编译器api更新或插入导入？

npm install typescript

import * as ts from 'typescript';

const fileName = 'example.ts';
const sourceCode = `
import { SomeModule } from 'some-module';

// Your code here
`;

// 创建编译器选项
const compilerOptions: ts.CompilerOptions = {
  target: ts.ScriptTarget.ES2017,
  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;
  },
  getCurrentDirectory: () => '',
  getDefaultLibFileName: () => 'lib.d.ts',
});

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

// 创建导入语句节点
const importStatement = ts.createImportDeclaration(
  undefined,
  undefined,
  ts.createImportClause(
    undefined,
    ts.createNamedImports([
      ts.createImportSpecifier(
        undefined,
        ts.createIdentifier('SomeNewModule')
      ),
    ])
  ),
  ts.createLiteral('some-new-module')
);

// 更新或插入导入语句
const updatedSourceFile = ts.updateSourceFileNode(sourceFile, [
  importStatement,
  ...sourceFile.statements,
]);

// 获取更新后的代码
const printer = ts.createPrinter();
const updatedCode = printer.printFile(updatedSourceFile);

console.log(updatedCode);