API: Standardize limits. Use ApiBase constants to avoid similar breakage and inconsis...

[lhc/web/wiklou.git] / includes / Hooks.php

diff --git a/includes/Hooks.php b/includes/Hooks.php
index b428b08..20103db 100644 (file)
--- a/includes/Hooks.php
+++ b/includes/Hooks.php
@@ -119,6 +119,20 @@ function wfRunHooks($event, $args = null) {
                        global $wgOut;
                        $wgOut->showFatalError($retval);
                        return false;
+               } elseif( $retval === null ) {
+                       if( is_array( $callback ) ) {
+                               if( is_object( $callback[0] ) ) {
+                                       $prettyClass = get_class( $callback[0] );
+                               } else {
+                                       $prettyClass = strval( $callback[0] );
+                               }
+                               $prettyFunc = $prettyClass . '::' . strval( $callback[1] );
+                       } else {
+                               $prettyFunc = strval( $callback );
+                       }
+                       throw new MWException( "Detected bug in an extension! " .
+                               "Hook $prettyFunc failed to return a value; " .
+                               "should return true to continue hook processing or false to abort." );
                } else if (!$retval) {
                        return false;
                }
@@ -126,4 +140,4 @@ function wfRunHooks($event, $args = null) {
 
        return true;
 }
-?>
+