Improve output: distinguish between failed assertions (failures) and unexpected exceptions (errors), and print a filtered stack trace for any exception.

webapp/web/src/AdapterRegistry.js

@@ -0,0 +1,72 @@
+/*
+	Copyright (c) 2004-2006, The Dojo Foundation
+	All Rights Reserved.
+
+	Licensed under the Academic Free License version 2.1 or above OR the
+	modified BSD license. For more information on Dojo licensing, see:
+
+		http://dojotoolkit.org/community/licensing.shtml
+*/
+
+dojo.provide("dojo.AdapterRegistry");
+dojo.require("dojo.lang.func");
+
+dojo.AdapterRegistry = function(){
+    /***
+        A registry to facilitate adaptation.
+
+        Pairs is an array of [name, check, wrap] triples
+        
+        All check/wrap functions in this registry should be of the same arity.
+    ***/
+    this.pairs = [];
+}
+
+dojo.lang.extend(dojo.AdapterRegistry, {
+    register: function (name, check, wrap, /* optional */ override){
+        /***
+			The check function should return true if the given arguments are
+			appropriate for the wrap function.
+
+			If override is given and true, the check function will be given
+			highest priority.  Otherwise, it will be the lowest priority
+			adapter.
+        ***/
+
+        if (override) {
+            this.pairs.unshift([name, check, wrap]);
+        } else {
+            this.pairs.push([name, check, wrap]);
+        }
+    },
+
+    match: function (/* ... */) {
+        /***
+			Find an adapter for the given arguments.
+
+			If no suitable adapter is found, throws NotFound.
+        ***/
+        for(var i = 0; i < this.pairs.length; i++){
+            var pair = this.pairs[i];
+            if(pair[1].apply(this, arguments)){
+                return pair[2].apply(this, arguments);
+            }
+        }
+		throw new Error("No match found");
+        // dojo.raise("No match found");
+    },
+
+    unregister: function (name) {
+        /***
+			Remove a named adapter from the registry
+        ***/
+        for(var i = 0; i < this.pairs.length; i++){
+            var pair = this.pairs[i];
+            if(pair[0] == name){
+                this.pairs.splice(i, 1);
+                return true;
+            }
+        }
+        return false;
+    }
+});