Allow objects to be passed as a parameter on the worker-pool method

lib/worker-pool/index.js

@@ -8,10 +8,14 @@ module.exports = function(options) {
 
 	var workers = farm(options, require.resolve('./worker'));
 
-	return function(fn) {
+	return function(fn, optns) {
 		var code = fn.toString();
+		var params = JSON.stringify({
+			options: optns,
+			fn: code
+		});
 		return function(cb) {
-			workers(code, cb);
+			workers(params, cb);
 		};
 	};
 };

lib/worker-pool/worker.js

@@ -13,7 +13,9 @@ function parseFn(str) {
 	return cache[str];
 }
 
-module.exports = function(code, cb) {
-	var fn = parseFn(code);
+module.exports = function(optns, cb) {
+	optns = JSON.parse(optns);
+	var code = optns.fn;
+	var fn = parseFn(code).bind(optns.options);
 	asyncDone(fn, cb);
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "spawn-task-experiment",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "Tests how fast it is to run gulp tasks in child processes",
   "main": "index.js",
   "scripts": {