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node_modules/babel-cli/lib/babel-node.js 1.77 KB
6a9ffbcc   liuqimichale   地图点击事件
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  "use strict";
  
  var getV8Flags = require("v8flags");
  var path = require("path");
  
  var args = [path.join(__dirname, "_babel-node")];
  
  var babelArgs = process.argv.slice(2);
  var userArgs = void 0;
  
  var argSeparator = babelArgs.indexOf("--");
  if (argSeparator > -1) {
    userArgs = babelArgs.slice(argSeparator);
    babelArgs = babelArgs.slice(0, argSeparator);
  }
  
  function getNormalizedV8Flag(arg) {
    var matches = arg.match(/--(.+)/);
  
    if (matches) {
      return "--" + matches[1].replace(/-/g, "_");
    }
  
    return arg;
  }
  
  getV8Flags(function (err, v8Flags) {
    babelArgs.forEach(function (arg) {
      var flag = arg.split("=")[0];
  
      switch (flag) {
        case "-d":
          args.unshift("--debug");
          break;
  
        case "debug":
        case "--debug":
        case "--debug-brk":
        case "--inspect":
        case "--inspect-brk":
          args.unshift(arg);
          break;
  
        case "-gc":
          args.unshift("--expose-gc");
          break;
  
        case "--nolazy":
          args.unshift(flag);
          break;
  
        default:
          if (v8Flags.indexOf(getNormalizedV8Flag(flag)) >= 0 || arg.indexOf("--trace") === 0) {
            args.unshift(arg);
          } else {
            args.push(arg);
          }
          break;
      }
    });
  
    if (argSeparator > -1) {
      args = args.concat(userArgs);
    }
  
    try {
      var kexec = require("kexec");
      kexec(process.argv[0], args);
    } catch (err) {
      if (err.code !== "MODULE_NOT_FOUND") throw err;
  
      var child_process = require("child_process");
      var proc = child_process.spawn(process.argv[0], args, { stdio: "inherit" });
      proc.on("exit", function (code, signal) {
        process.on("exit", function () {
          if (signal) {
            process.kill(process.pid, signal);
          } else {
            process.exit(code);
          }
        });
      });
    }
  });