From 343b6cdcd497a810aafcf551fcd623215faa1486 Mon Sep 17 00:00:00 2001
From: Mariusz Nowak <mariusz@medikoo.com>
Date: Mon, 22 Jul 2013 20:37:15 +0200
Subject: [PATCH] `serialize` option, for custom args serialization

---
 lib/_base.js     |  2 +-
 lib/index.js     |  3 ++-
 lib/primitive.js | 10 +++++++---
 test/index.js    | 16 +++++++++++++++-
 4 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/lib/_base.js b/lib/_base.js
index 3658a3a..ab11416 100644
--- a/lib/_base.js
+++ b/lib/_base.js
@@ -33,7 +33,7 @@ module.exports = exports = function (core) {
 			length = (options.length === false) ? false : (options.length >>> 0);
 		}
 
-		core(conf, length);
+		core(conf, length, options);
 
 		forEach(ext, function (fn, name) {
 			if (fn.force) fn(conf, options);
diff --git a/lib/index.js b/lib/index.js
index 00bc70c..157459e 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -18,5 +18,6 @@ require('./ext/max');
 
 module.exports = function (fn/* options */) {
 	var options = Object(arguments[1]);
-	return call.call(options.primitive ? primitive : regular, this, fn, options);
+	return call.call((options.primitive || options.serialize) ?
+			primitive : regular, this, fn, options);
 };
diff --git a/lib/primitive.js b/lib/primitive.js
index b9ae08b..d285133 100644
--- a/lib/primitive.js
+++ b/lib/primitive.js
@@ -3,6 +3,7 @@
 'use strict';
 
 var CustomError  = require('es5-ext/lib/Error/custom')
+  , callable     = require('es5-ext/lib/Object/valid-callable')
   , hasListeners = require('event-emitter/lib/has-listeners')
 
   , serialize0 = function () { return ''; }
@@ -22,11 +23,14 @@ serializeN = function (args) {
 	return id;
 };
 
-module.exports = require('./_base')(function (conf, length) {
+module.exports = require('./_base')(function (conf, length, options) {
 	var get, cache = conf.cache = {}, fn
-	  , hitListeners, initListeners, purgeListeners;
+	  , hitListeners, initListeners, purgeListeners, serialize;
 
-	if (length === 1) {
+	if (options.serialize) {
+		serialize = callable(options.serialize);
+		get = conf.get = function (args) { return serialize.apply(this, args); };
+	} else if (length === 1) {
 		get = conf.get = serialize1;
 	} else if (length === false) {
 		get = conf.get = serializeN;
diff --git a/test/index.js b/test/index.js
index 8a38942..953c04f 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,7 +1,9 @@
 'use strict';
 
 var toArray  = require('es5-ext/lib/Array/from')
-  , nextTick = require('next-tick');
+  , nextTick = require('next-tick')
+
+  , join = Array.prototype.join;
 
 module.exports = function (t, a) {
 	return {
@@ -88,6 +90,18 @@ module.exports = function (t, a) {
 				}
 			};
 		},
+		"Serialize": function () {
+			var i = 0, fn = function () { ++i; return join.call(arguments, '|'); }
+			  , mfn;
+			mfn = t(fn, { serialize: Boolean });
+			a(mfn(false, 'raz'), 'false|raz', "#1");
+			a(mfn(0, 'dwa'), 'false|raz', "#2");
+			a(i, 1, "Called once");
+			a(mfn(34, 'bar'), '34|bar', "#3");
+			a(i, 2, "Called twice");
+			a(mfn(true, 'ola'), '34|bar', "#4");
+			a(i, 2, "Called twice #2");
+		},
 		"Dynamic": function () {
 			var i = 0, fn = function () { ++i; return arguments; }, r;