Fix unduly early loading of the commandline module.

common/content/buffer.js

@@ -346,7 +346,8 @@ var Buffer = Module("buffer", {
             util.timeout(function () {
                 statusline.updateBufferPosition();
                 statusline.updateZoomLevel();
-                commandline.clear();
+                if (loaded.commandline)
+                    commandline.clear();
             }, 500);
         },
         // called at the very end of a page load

common/content/commandline.js

@@ -589,18 +589,15 @@ var CommandLine = Module("commandline", {
 
     get command() {
         if (this.commandVisible && this.widgets.command)
-            return this._lastCommand = this.widgets.command[1];
-        return this._lastCommand;
+            return commands.lastCommand = this.widgets.command[1];
+        return commands.lastCommand;
     },
     set command(val) {
         if (this.commandVisible && (modes.extended & modes.EX))
             return this.widgets.command = val;
-        return this._lastCommand = val;
+        return commands.lastCommand = val;
     },
 
-    get lastCommand() this._lastCommand || this.command,
-    set lastCommand(val) { this._lastCommand = val; },
-
     clear: function clear() {
         if (this.widgets.message && this.widgets.message[1] === this._lastClearable)
             this.widgets.message = null;

common/content/commands.js

@@ -129,6 +129,9 @@ var Command = Class("Command", {
 
     get helpTag() ":" + this.name,
 
+    get lastCommand() this._lastCommand || commandline.command,
+    set lastCommand(val) { this._lastCommand = val; },
+
     /**
      * Execute this command.
      *

common/content/dactyl.js

@@ -369,13 +369,12 @@ var Dactyl = Module("dactyl", XPCOM(Ci.nsISupportsWeakReference, ModuleBase), {
      *     See {@link CommandLine#echo}.
      */
     echomsg: function (str, verbosity, flags) {
-        flags |= commandline.APPEND_TO_MESSAGES;
-
         if (verbosity == null)
             verbosity = 0; // verbosity level is exclusionary
 
         if (options["verbose"] >= verbosity)
-            commandline.echo(str, commandline.HL_INFOMSG, flags);
+            commandline.echo(str, commandline.HL_INFOMSG,
+                             flags | commandline.APPEND_TO_MESSAGES);
     },
 
     /**
@@ -455,7 +454,7 @@ var Dactyl = Module("dactyl", XPCOM(Ci.nsISupportsWeakReference, ModuleBase), {
         modifiers = modifiers || {};
 
         if (!silent)
-            commandline.lastCommand = str.replace(/^\s*:\s*/, "");
+            commands.lastCommand = str.replace(/^\s*:\s*/, "");
         let res = true;
         for (let [command, args] in commands.parseCommands(str.replace(/^'(.*)'$/, "$1"))) {
             if (command === null)
@@ -1484,7 +1483,8 @@ var Dactyl = Module("dactyl", XPCOM(Ci.nsISupportsWeakReference, ModuleBase), {
                     M: ["Always show messages outside of the status line"]
                 },
                 setter: function (opts) {
-                    commandline.widgets.updateVisibility();
+                    if (loaded.commandline)
+                        commandline.widgets.updateVisibility();
                 }
             },
             {

common/modules/io.jsm

@@ -1026,7 +1026,7 @@ unlet s:cpo_save
 
     },
     modes: function (dactyl, modules, window) {
-        const { commandline, modes } = modules;
+        const { modes } = modules;
 
         modes.addMode("FILE_INPUT", {
             extended: true,

common/modules/overlay.jsm

@@ -253,6 +253,7 @@ var Overlay = Module("Overlay", {
                         catch (e) {
                             Class.replaceProperty(modules, module.className, obj);
                         }
+                        loaded[module.className] = true;
 
                         frob(module.className);