From 9f340daa3a7ae1ad557c6ec1bc0a1f6120765fab Mon Sep 17 00:00:00 2001
From: Leo Horie <leohorie@hotmail.com>
Date: Mon, 5 Dec 2016 12:32:11 -0500
Subject: [PATCH] reduce router code size

---
 README.md      |  2 +-
 api/router.js  | 30 +++++++++----------
 mithril.js     | 17 +++++------
 mithril.min.js | 81 +++++++++++++++++++++++++-------------------------
 4 files changed, 64 insertions(+), 66 deletions(-)

diff --git a/README.md b/README.md
index ef729c3b..4676e66b 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,6 @@ There are over 4000 assertions in the test suite, and tests cover even difficult
 
 ## Modularity
 
-Despite the huge improvements in performance and modularity, the new codebase is smaller than v0.2.x, currently clocking at <!-- size -->7.44 KB<!-- /size --> min+gzip
+Despite the huge improvements in performance and modularity, the new codebase is smaller than v0.2.x, currently clocking at <!-- size -->7.40 KB<!-- /size --> min+gzip
 
 In addition, Mithril is now completely modular: you can import only the modules that you need and easily integrate 3rd party modules if you wish to use a different library for routing, ajax, and even rendering
diff --git a/api/router.js b/api/router.js
index 96ad71bc..95ef6afd 100644
--- a/api/router.js
+++ b/api/router.js
@@ -7,32 +7,32 @@ module.exports = function($window, redrawService) {
 	var routeService = coreRouter($window)
 	
 	var identity = function(v) {return v}
-	var current = {}
+	var resolver, component, attrs, currentPath, resolve
 	var route = function(root, defaultRoute, routes) {
 		if (root == null) throw new Error("Ensure the DOM element that was passed to `m.route` is not undefined")
-		var update = function(resolver, component, params, path) {
-			current = {resolver: resolver, component: component, params: params, path: path, resolve: null}
-			current.resolver.render = resolver.render || identity
+		var update = function(routeResolver, comp, params, path) {
+			resolver = routeResolver, component = comp, attrs = params, currentPath = path, resolve = null
+			resolver.render = routeResolver.render || identity
 			render()
 		}
 		var render = function() {
-			if (current.resolver != null) redrawService.render(root, current.resolver.render(Vnode(current.component, current.params.key, current.params)))
+			if (resolver != null) redrawService.render(root, resolver.render(Vnode(component, attrs.key, attrs)))
 		}
-		routeService.defineRoutes(routes, function(component, params, path) {
-			if (component.view) update({}, component, params, path)
+		routeService.defineRoutes(routes, function(payload, params, path) {
+			if (payload.view) update({}, payload, params, path)
 			else {
-				if (component.onmatch) {
-					if (current.resolve != null) update(component, current.component, params, path)
+				if (payload.onmatch) {
+					if (resolve != null) update(payload, component, params, path)
 					else {
-						current.resolve = function(resolved) {
-							update(component, resolved, params, path)
+						resolve = function(resolved) {
+							update(payload, resolved, params, path)
 						}
-						component.onmatch(function(resolved) {
-							if (current.resolve != null) current.resolve(resolved)
+						payload.onmatch(function(resolved) {
+							if (resolve != null) resolve(resolved)
 						}, params, path)
 					}
 				}
-				else update(component, "div", params, path)
+				else update(payload, "div", params, path)
 			}
 		}, function() {
 			routeService.setPath(defaultRoute)
@@ -40,7 +40,7 @@ module.exports = function($window, redrawService) {
 		redrawService.subscribe(root, render)
 	}
 	route.set = routeService.setPath
-	route.get = function() {return current.path}
+	route.get = function() {return currentPath}
 	route.prefix = routeService.setPrefix
 	route.link = routeService.link
 	return route
diff --git a/mithril.js b/mithril.js
index 35531c81..b214a003 100644
--- a/mithril.js
+++ b/mithril.js
@@ -1092,28 +1092,27 @@ var _20 = function($window, redrawService0) {
 	var routeService = coreRouter($window)
 	
 	var identity = function(v) {return v}
-	var current = {}
+	var currentResolver, currentComponent, currentParams, currentPath, currentResolve
 	var route = function(root, defaultRoute, routes) {
-		if (root == null) throw new Error("Ensure the DOM element that was passed to `m.route` is not undefined")
 		var update = function(resolver, component, params, path) {
-			current = {resolver: resolver, component: component, params: params, path: path, resolve: null}
-			current.resolver.render = resolver.render || identity
+			currentResolver = resolver, currentComponent = component, currentParams = params, currentPath = path, currentResolve = null
+			currentResolver.render = resolver.render || identity
 			render1()
 		}
 		var render1 = function() {
-			if (current.resolver != null) redrawService0.render(root, current.resolver.render(Vnode(current.component, current.params.key, current.params)))
+			if (currentResolver != null) redrawService0.render(root, currentResolver.render(Vnode(currentComponent, currentParams.key, currentParams)))
 		}
 		routeService.defineRoutes(routes, function(component, params, path) {
 			if (component.view) update({}, component, params, path)
 			else {
 				if (component.onmatch) {
-					if (current.resolve != null) update(component, current.component, params, path)
+					if (currentResolve != null) update(component, currentComponent, params, path)
 					else {
-						current.resolve = function(resolved) {
+						currentResolve = function(resolved) {
 							update(component, resolved, params, path)
 						}
 						component.onmatch(function(resolved) {
-							if (current.resolve != null) current.resolve(resolved)
+							if (currentResolve != null) currentResolve(resolved)
 						}, params, path)
 					}
 				}
@@ -1125,7 +1124,7 @@ var _20 = function($window, redrawService0) {
 		redrawService0.subscribe(root, render1)
 	}
 	route.set = routeService.setPath
-	route.get = function() {return current.path}
+	route.get = function() {return currentPath}
 	route.prefix = routeService.setPrefix
 	route.link = routeService.link
 	return route
diff --git a/mithril.min.js b/mithril.min.js
index dd7f0936..1a81dc22 100644
--- a/mithril.min.js
+++ b/mithril.min.js
@@ -1,41 +1,40 @@
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