Provide flag to throw exception on unhandled element

Code/ActivityStreams/ASObject.php

@@ -47,15 +47,28 @@ class ASObject
     public $canSearch;
     public $commentPolicy;
 
-    public function __construct($array = null)
+    /**
+     * @param $input
+     * @param $strict
+     * @throws UnhandledElementException if $strict
+     */
+
+    public function __construct($input = null, $strict = false)
     {
-        if ($array && is_array($array)) {
-            foreach ($array as $key => $value) {
-                if ($key === '@context') {
-                    $key = 'ldcontext';
-                }
-                if (property_exists($this,$key)) {
-                    $this->{$key} = $value;
+        if ($input) {
+            if (is_array($input)) {
+                foreach ($input as $key => $value) {
+                    if ($key === '@context') {
+                        $key = 'ldcontext';
+                    }
+                    if (property_exists($this, $key)) {
+                        $this->{$key} = $value;
+                    }
+                    else {
+                        if ($strict) {
+                            throw new UnhandledElementException("Unhandled element: $key");
+                        }
+                    }
                 }
             }
         }

Code/ActivityStreams/UnhandledElementException.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Code\ActivityStreams;
+
+class UnhandledElementException extends \Exception
+{
+
+}