@eljs/utils/lib/file/transformer.js

Collection of nodejs utility.

var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/file/transformer.ts
var transformer_exports = {};
__export(transformer_exports, {
  Transformer: () => Transformer
});
module.exports = __toCommonJS(transformer_exports);
var import_node_path = __toESM(require("node:path"));
var import_pirates = require("pirates");
var Transformer = class {
  /**
   * 构造函数选项
   */
  constructorOptions;
  _revert = () => {
  };
  constructor(options) {
    this.constructorOptions = options;
  }
  /**
   * 执行文件劫持
   * @param options 文件转换函数选项
   */
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  apply(options) {
    const { exts = [".ts"], ignoreNodeModules } = this.constructorOptions;
    this._revert = (0, import_pirates.addHook)(
      (code, filename) => this._transform(code, filename, options || {}),
      {
        exts,
        ignoreNodeModules
      }
    );
  }
  /**
   * 恢复文件劫持
   */
  revert() {
    this._revert();
  }
  /**
   * 转换文件
   * @param input 源文件内容
   * @param filename 源文件名
   * @param options 文件转换函数选项
   */
  _transform(input, filename, options) {
    const ext = import_node_path.default.extname(filename);
    try {
      const { code } = this.constructorOptions.transform(input, {
        sourcefile: filename,
        loader: ext.slice(1),
        target: "es2019",
        format: "cjs",
        logLevel: "error",
        ...options
      });
      return code;
    } catch (error) {
      const err = error;
      err.message = `Transform ${filename} failed: ${err.message}`;
      throw err;
    }
  }
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  Transformer
});