diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/ReplaceObserver.java @ 21204:4a5df5570b7f

Truffle: make ReplaceObserver return a boolean in order to consume replace events. It can be useful for nodes to consume all replace events if they are always executed behind a @TruffleBoundary.
author Christian Humer <christian.humer@gmail.com>
date Mon, 04 May 2015 11:24:13 +0200
parents 6189c1983cd3
children
line wrap: on
line diff
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/ReplaceObserver.java	Wed Apr 29 17:16:53 2015 +0200
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/ReplaceObserver.java	Mon May 04 11:24:13 2015 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -31,5 +31,10 @@
  */
 public interface ReplaceObserver {
 
-    void nodeReplaced(Node oldNode, Node newNode, CharSequence reason);
+    /**
+     * Returns <code>true</code> if the event is consumed and no parent nodes should be notified by
+     * for replaces. Returns <code>false</code> if the parent {@link Node} or {@link CallTarget}
+     * should get notified.
+     */
+    boolean nodeReplaced(Node oldNode, Node newNode, CharSequence reason);
 }