Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/call/CachedBoxedDispatchNode.java @ 13529:856c2c294f84
Merge.
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 07 Jan 2014 18:53:04 +0100 |
parents | 0fbee3eb71f0 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/call/CachedBoxedDispatchNode.java Tue Jan 07 18:53:04 2014 +0100 @@ -0,0 +1,67 @@ +/* + * 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.runtime.*; +import com.oracle.truffle.ruby.runtime.core.*; +import com.oracle.truffle.ruby.runtime.lookup.*; +import com.oracle.truffle.ruby.runtime.methods.*; +import com.oracle.truffle.ruby.runtime.objects.*; + +/** + * A node in the dispatch chain that comes after the boxing point and caches a method on a full + * boxed Ruby BasicObject, matching it by looking at the lookup node and assuming it has not been + * modified. + */ +public class CachedBoxedDispatchNode extends BoxedDispatchNode { + + private final LookupNode expectedLookupNode; + private final Assumption unmodifiedAssumption; + private final RubyMethod method; + + @Child protected BoxedDispatchNode next; + + public CachedBoxedDispatchNode(RubyContext context, SourceSection sourceSection, LookupNode expectedLookupNode, RubyMethod method, BoxedDispatchNode next) { + super(context, sourceSection); + + assert expectedLookupNode != null; + assert method != null; + + this.expectedLookupNode = expectedLookupNode; + unmodifiedAssumption = expectedLookupNode.getUnmodifiedAssumption(); + this.method = method; + this.next = adoptChild(next); + } + + @Override + public Object dispatch(VirtualFrame frame, RubyBasicObject receiverObject, RubyProc blockObject, Object[] argumentsObjects) { + // Check the lookup node is what we expect + + if (receiverObject.getLookupNode() != expectedLookupNode) { + 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 + + return method.call(frame.pack(), receiverObject, blockObject, argumentsObjects); + } + +}