Split module loading into a separate startup task

Still a work in progress.

boot/boot.js

@@ -1773,10 +1773,10 @@ $tw.boot.executeNextStartupTask = function() {
 };
 
 $tw.boot.isStartupTaskEligible = function(taskModule) {
-	var dependencies = taskModule.dependencies;
+	var after = taskModule.after;
-	if(dependencies) {
+	if(after) {
-		for(var t=0; t<dependencies.length; t++) {
+		for(var t=0; t<after.length; t++) {
-			if(!$tw.boot.executedStartupModules[dependencies[t]]) {
+			if(!$tw.boot.executedStartupModules[after[t]]) {
 				return false;
 			}
 		}

core/modules/startup.js

@@ -14,6 +14,7 @@ This is the main application logic for both the client and server
 
 // Export name and synchronous status
 exports.name = "startup";
+exports.after = ["load-modules"];
 exports.synchronous = true;
 
 // Set to `true` to enable performance instrumentation
@@ -36,28 +37,12 @@ var widget = require("$:/core/modules/widgets/widget.js");
 
 exports.startup = function() {
 	var modules,n,m,f,commander;
-	// Load modules
-	$tw.modules.applyMethods("utils",$tw.utils);
-	if($tw.node) {
-		$tw.modules.applyMethods("utils-node",$tw.utils);
-	}
-	$tw.modules.applyMethods("global",$tw);
-	$tw.modules.applyMethods("config",$tw.config);
 	if($tw.browser) {
-		$tw.utils.getBrowserInfo($tw.browser);
+		$tw.browser.isIE = (/msie|trident/i.test(navigator.userAgent));
 	}
 	$tw.version = $tw.utils.extractVersionInfo();
-	$tw.Tiddler.fieldModules = $tw.modules.getModulesByTypeAsHashmap("tiddlerfield");
-	$tw.modules.applyMethods("tiddlermethod",$tw.Tiddler.prototype);
-	$tw.modules.applyMethods("wikimethod",$tw.Wiki.prototype);
-	$tw.modules.applyMethods("tiddlerdeserializer",$tw.Wiki.tiddlerDeserializerModules);
-	$tw.macros = $tw.modules.getModulesByTypeAsHashmap("macro");
 	// Set up the performance framework
 	$tw.perf = new $tw.Performance(PERFORMANCE_INSTRUMENTATION);
-	// Set up the parsers
-	$tw.wiki.initParsers();
-	// Set up the command modules
-	$tw.Commander.initCommands();
 	// Kick off the language manager and switcher
 	$tw.language = new $tw.Language();
 	$tw.languageSwitcher = new $tw.PluginSwitcher({

core/modules/startup/load-modules.js

@@ -0,0 +1,36 @@
+/*\
+title: $:/core/modules/startup/load-modules.js
+type: application/javascript
+module-type: startup
+
+Load core modules
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+// Export name and synchronous status
+exports.name = "load-modules";
+exports.synchronous = true;
+
+exports.startup = function() {
+	// Load modules
+	$tw.modules.applyMethods("utils",$tw.utils);
+	if($tw.node) {
+		$tw.modules.applyMethods("utils-node",$tw.utils);
+	}
+	$tw.modules.applyMethods("global",$tw);
+	$tw.modules.applyMethods("config",$tw.config);
+	$tw.Tiddler.fieldModules = $tw.modules.getModulesByTypeAsHashmap("tiddlerfield");
+	$tw.modules.applyMethods("tiddlermethod",$tw.Tiddler.prototype);
+	$tw.modules.applyMethods("wikimethod",$tw.Wiki.prototype);
+	$tw.modules.applyMethods("tiddlerdeserializer",$tw.Wiki.tiddlerDeserializerModules);
+	$tw.macros = $tw.modules.getModulesByTypeAsHashmap("macro");
+	$tw.wiki.initParsers();
+	$tw.Commander.initCommands();
+};
+
+})();

core/modules/utils/dom/browser.js

@@ -130,9 +130,4 @@ exports.convertEventName = function(eventName) {
 	return newEventName;
 };
 
-// Setup constants for the current browser
-exports.getBrowserInfo = function(info) {
-	info.isIE = (/msie|trident/i.test(navigator.userAgent));
-};
-
 })();

editions/tw5.com/tiddlers/mechanisms/StartupMechanism.tid

@@ -13,7 +13,7 @@ Modules with their ''module-type'' field set to `startup`:
 * Must expose a `startup` function
 ** For synchronous startup modules the startup function is called as `startup()`, asynchronous modules are passed a callback they must invoke on completion: `startup(callback)`
 * May expose a `name` property that is used to identify the task
-* May expose a `dependencies` property containing an array of names of dependent tasks that must be run before this one
+* May expose a `after` property containing an array of names of dependent tasks that must be run before this one
 
 ! Startup Processing