taxy

Taxy is an extension of galaxy that adds additional functionality similar to that of .NET. Taxy inherits the entire set of functionality provided by galaxy in addition to its own.

NOTE: node must be run with --harmony. In order to use taxy as it uses ES6 features.

Classes

taxy.completion

A class that creates a future that returns when the complete method is called. Comparable to .NET's TaskCompletionSource.

Usage

code

var taxy = require('taxy');

taxy.main(function* () {

  var completion = new taxy.completion();

  console.log(new Date());
  setTimeout(function () {
    completion.complete();
  }, 2000);

  yield completion.future();
  console.log(new Date());

});

output

Sat Aug 08 2015 19:19:35 GMT-0700 (Pacific Daylight Time)
Sat Aug 08 2015 19:19:37 GMT-0700 (Pacific Daylight Time)

API

taxy.delay(ms)

Returns after the specified interval. Based on setTimeout(). Comparable to .NET's Task.Delay.

Parameters

• ms: The number of milliseconds to delay.

Usage

code

var taxy = require('taxy');

taxy.main(function* () {

  console.log(new Date());
  yield taxy.delay(2000);
  console.log(new Date());

});

output

Sat Aug 08 2015 19:10:11 GMT-0700 (Pacific Daylight Time)
Sat Aug 08 2015 19:10:13 GMT-0700 (Pacific Daylight Time)

taxy.rest()

Pauses execution and resumes after the functions currently in the queue have finished. This is based on setImmediate and allows a lengthy operation to execute without strangling the thread.

Usage

code

var taxy = require('taxy');

taxy.main(function* () {

  console.log('Before');
  yield taxy.rest();
  console.log('After');

});

output

Before
After

taxy.whenAll(futures)

Returns after all given future objects have completed. Comparable to .NET's Task.WhenAll.

Return value

An array consisting of the results of all of the given futures.

Parameters

• futures: an array of future objects to be yielded.

Usage

var taxy = require('taxy');

var foo = function* () {
  yield taxy.delay(200);
  console.log('foo');
  return 'foo';
};

var bar = function* () {
  yield taxy.delay(300);
  console.log('bar');
  return 'bar';
};

taxy.main(function* () {

  var fooFuture = taxy.spin(foo());
  var barFuture = taxy.spin(bar());

  var result = yield taxy.whenAll([fooFuture, barFuture]);
  console.log('whenAll completed. Result: ' + result);

});

output

foo
bar
whenAll completed. Result: foo,bar

taxy.whenAny(futures)

Returns after the first of the given future objects has completed. Comparable to .NET's Task.WhenAny.

Return value

The result of the first future to complete.

Parameters

• futures: an array of future objects to be yielded.

var taxy = require('taxy');

var foo = function* () {
  yield taxy.delay(200);
  console.log('foo');
  return 'foo';
};

var bar = function* () {
  yield taxy.delay(300);
  console.log('bar');
  return 'bar';
};

taxy.main(function* () {

  var fooFuture = taxy.spin(foo());
  var barFuture = taxy.spin(bar());

  var result = yield taxy.whenAny([fooFuture, barFuture]);
  console.log('whenAny completed. Result: ' + result);

});

output

foo
whenAny completed. Result: foo
bar