--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/call/InlinedUnboxedDispatchNode.java	Tue Jan 07 18:53:04 2014 +0100
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package com.oracle.truffle.ruby.nodes.call;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.frame.*;
+import com.oracle.truffle.api.nodes.*;
+import com.oracle.truffle.ruby.nodes.*;
+import com.oracle.truffle.ruby.runtime.*;
+import com.oracle.truffle.ruby.runtime.core.*;
+
+public class InlinedUnboxedDispatchNode extends UnboxedDispatchNode {
+
+    private final Class expectedClass;
+    private final Assumption unmodifiedAssumption;
+
+    private final InlinableMethodImplementation method;
+    private final RubyRootNode rootNode;
+
+    @Child protected UnboxedDispatchNode next;
+
+    public InlinedUnboxedDispatchNode(RubyContext context, SourceSection sourceSection, Class expectedClass, Assumption unmodifiedAssumption, InlinableMethodImplementation method,
+                    UnboxedDispatchNode next) {
+        super(context, sourceSection);
+
+        assert expectedClass != null;
+        assert method != null;
+
+        this.expectedClass = expectedClass;
+        this.unmodifiedAssumption = unmodifiedAssumption;
+        this.method = method;
+        this.rootNode = method.getCloneOfPristineRootNode();
+        this.next = adoptChild(next);
+    }
+
+    @Override
+    public Object dispatch(VirtualFrame frame, Object receiverObject, RubyProc blockObject, Object[] argumentsObjects) {
+        // Check the class is what we expect
+
+        if (receiverObject.getClass() != expectedClass) {
+            return next.dispatch(frame, receiverObject, blockObject, argumentsObjects);
+        }
+
+        // Check the class has not been modified
+
+        try {
+            unmodifiedAssumption.check();
+        } catch (InvalidAssumptionException e) {
+            return respecialize("class modified", frame, receiverObject, blockObject, argumentsObjects);
+        }
+
+        // Call the method
+
+        final RubyArguments arguments = new RubyArguments(method.getDeclarationFrame(), receiverObject, blockObject, argumentsObjects);
+        final VirtualFrame inlinedFrame = Truffle.getRuntime().createVirtualFrame(frame.pack(), arguments, method.getFrameDescriptor());
+        return rootNode.execute(inlinedFrame);
+    }
+
+    @Override
+    public void setNext(UnboxedDispatchNode next) {
+        this.next = adoptChild(next);
+    }
+
+}