aboutsummaryrefslogtreecommitdiff
path: root/src/js/node/domain.ts
blob: 7bed189e5313b3491cb1b96132098291e56df467 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
// Import Events
var EventEmitter = require("node:events");

// Export Domain
var domain: any = {};
domain.createDomain = domain.create = function () {
  var d = new EventEmitter();

  function emitError(e) {
    d.emit("error", e);
  }

  d.add = function (emitter) {
    emitter.on("error", emitError);
  };
  d.remove = function (emitter) {
    emitter.removeListener("error", emitError);
  };
  d.bind = function (fn) {
    return function () {
      var args = Array.prototype.slice.$call(arguments);
      try {
        fn.$apply(null, args);
      } catch (err) {
        emitError(err);
      }
    };
  };
  d.intercept = function (fn) {
    return function (err) {
      if (err) {
        emitError(err);
      } else {
        var args = Array.prototype.slice.$call(arguments, 1);
        try {
          fn.$apply(null, args);
        } catch (err) {
          emitError(err);
        }
      }
    };
  };
  d.run = function (fn) {
    try {
      fn();
    } catch (err) {
      emitError(err);
    }
    return this;
  };
  d.dispose = function () {
    this.removeAllListeners();
    return this;
  };
  d.enter = d.exit = function () {
    return this;
  };
  return d;
};
export default domain;