once@1.3.0

4 files changed, 35 insertions, 10 deletions

diff --git a/node_modules/once/README.md b/node_modules/once/README.md
index e833b83d2..a2981ea07 100644
--- a/node_modules/once/README.md
+++ b/node_modules/once/README.md
@@ -31,3 +31,21 @@ function load (file, cb) {
 
 Ironically, the prototype feature makes this module twice as
 complicated as necessary.
+
+To check whether you function has been called, use `fn.called`. Once the
+function is called for the first time the return value of the original
+function is saved in `fn.value` and subsequent calls will continue to
+return this value.
+
+```javascript
+var once = require('once')
+
+function load (cb) {
+  cb = once(cb)
+  var stream = createStream()
+  stream.once('data', cb)
+  stream.once('end', function () {
+    if (!cb.called) cb(new Error('not found'))
+  })
+}
+```
diff --git a/node_modules/once/once.js b/node_modules/once/once.js
index effc50a47..0770a73cd 100644
--- a/node_modules/once/once.js
+++ b/node_modules/once/once.js
@@ -10,10 +10,11 @@ once.proto = once(function () {
 })
 
 function once (fn) {
-  var called = false
-  return function () {
-    if (called) return
-    called = true
-    return fn.apply(this, arguments)
+  var f = function () {
+    if (f.called) return f.value
+    f.called = true
+    return f.value = fn.apply(this, arguments)
   }
+  f.called = false
+  return f
 }
diff --git a/node_modules/once/package.json b/node_modules/once/package.json
index 22671632e..96af3dedf 100644
--- a/node_modules/once/package.json
+++ b/node_modules/once/package.json
@@ -1,6 +1,6 @@
 {
   "name": "once",
-  "version": "1.1.1",
+  "version": "1.3.0",
   "description": "Run a function exactly one time",
   "main": "once.js",
   "directories": {
@@ -29,7 +29,11 @@
     "url": "http://blog.izs.me/"
   },
   "license": "BSD",
-  "readme": "# once\n\nOnly call a function once.\n\n## usage\n\n```javascript\nvar once = require('once')\n\nfunction load (file, cb) {\n  cb = once(cb)\n  loader.load('file')\n  loader.once('load', cb)\n  loader.once('error', cb)\n}\n```\n\nOr add to the Function.prototype in a responsible way:\n\n```javascript\n// only has to be done once\nrequire('once').proto()\n\nfunction load (file, cb) {\n  cb = cb.once()\n  loader.load('file')\n  loader.once('load', cb)\n  loader.once('error', cb)\n}\n```\n\nIronically, the prototype feature makes this module twice as\ncomplicated as necessary.\n",
-  "_id": "once@1.1.1",
-  "_from": "once"
+  "readme": "# once\n\nOnly call a function once.\n\n## usage\n\n```javascript\nvar once = require('once')\n\nfunction load (file, cb) {\n  cb = once(cb)\n  loader.load('file')\n  loader.once('load', cb)\n  loader.once('error', cb)\n}\n```\n\nOr add to the Function.prototype in a responsible way:\n\n```javascript\n// only has to be done once\nrequire('once').proto()\n\nfunction load (file, cb) {\n  cb = cb.once()\n  loader.load('file')\n  loader.once('load', cb)\n  loader.once('error', cb)\n}\n```\n\nIronically, the prototype feature makes this module twice as\ncomplicated as necessary.\n\nTo check whether you function has been called, use `fn.called`. Once the\nfunction is called for the first time the return value of the original\nfunction is saved in `fn.value` and subsequent calls will continue to\nreturn this value.\n\n```javascript\nvar once = require('once')\n\nfunction load (cb) {\n  cb = once(cb)\n  var stream = createStream()\n  stream.once('data', cb)\n  stream.once('end', function () {\n    if (!cb.called) cb(new Error('not found'))\n  })\n}\n```\n",
+  "readmeFilename": "README.md",
+  "bugs": {
+    "url": "https://github.com/isaacs/once/issues"
+  },
+  "_id": "once@1.3.0",
+  "_from": "once@latest"
 }
diff --git a/node_modules/once/test/once.js b/node_modules/once/test/once.js
index f0291a44f..a77951f11 100644
--- a/node_modules/once/test/once.js
+++ b/node_modules/once/test/once.js
@@ -8,10 +8,12 @@ test('once', function (t) {
     f ++
     return f + g + this
   })
+  t.notOk(foo.called)
   for (var i = 0; i < 1E3; i++) {
     t.same(f, i === 0 ? 0 : 1)
     var g = foo.call(1, 1)
-    t.same(g, i === 0 ? 3 : undefined)
+    t.ok(foo.called)
+    t.same(g, 3)
     t.same(f, 1)
   }
   t.end()