remove co dependency

lib/closure/ClosureReducer.js

@@ -1,7 +1,6 @@
 "use strict";
 
 const Closure = require("./Closure"),
-	co = require("co"),
 	util = require("../util");
 
 /**
@@ -16,17 +15,24 @@ module.exports = class ClosureReducer extends Closure {
 	constructor(name, closures, options) {
 		super(name, options);
 		this.closures = closures || util.raise(`Cannot build closure reducer [${name}] without closure chain`);
-		this.do = co.wrap(this.do.bind(this));
 	}
 
-	* do(fact, context) {
-		for (let closure of this.closures) {
-			fact = yield closure.process(fact, context);
-			if (this.options.matchOnce && context.currentRuleFlowActivated) {
-				return fact;
-			}
+	do(fact, context) {
+		return this.reduce(0, fact, context);
+	}
+
+	reduce(index, fact, context) {
+		if (this.closures.length <= index) {
+			return Promise.resolve(fact);
 		}
-		return fact;
+
+		return this.closures[index].process(fact, context)
+			.then(fact => {
+				if (this.options.matchOnce && context.currentRuleFlowActivated) {
+					return fact;
+				}
+				return this.reduce(index + 1, fact, context);
+			});
 	}
 
 }

lib/closure/RuleFlow.js

@@ -1,22 +1,15 @@
 "use strict";
 
-const co = require("co"),
-	ClosureReducer = require("./ClosureReducer");
-
+const ClosureReducer = require("./ClosureReducer");
 
 module.exports = class RuleFlow extends ClosureReducer {
 
-	constructor(name, closures, options) {
-		super(name, closures, options);
-		this.do = co.wrap(this.do.bind(this));
-	}
-
-	* do(fact, context) {
+	do(fact, context) {
 		context.initiateFlow();
-		fact = yield super.do(fact, context);
-		context.endFlow();
-
-		return fact
+		return super.do(fact, context).then(fact => {
+			context.endFlow();
+			return fact;
+		});
 	}
 
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rules-js",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "A simple rule-engine for javascript",
   "main": "index.js",
   "author": "Claudio Fernandez <[email protected]>",
@@ -23,9 +23,7 @@
     "sinon": "^4.0.0",
     "sinon-chai": "^2.14.0"
   },
-  "dependencies": {
-    "co": "^4.6.0"
-  },
+  "dependencies": {},
   "repository": {
     "closure": "git",
     "url": "https://github.com/bluealba/rules-js"