Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/call/DispatchHeadNode.java @ 13792:9e7acc9cad8e
kill unused frame states when loop exits are removed
thanks to Gilles
author | Andreas Woess <andreas.woess@jku.at> |
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date | Tue, 28 Jan 2014 23:38:22 +0100 |
parents | 0fbee3eb71f0 |
children |
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/* * 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.ruby.runtime.*; import com.oracle.truffle.ruby.runtime.core.*; import com.oracle.truffle.ruby.runtime.methods.*; import com.oracle.truffle.ruby.runtime.objects.*; /** * The head of a chain of dispatch nodes. Can be used with {@link CallNode} or on its own. */ public class DispatchHeadNode extends DispatchNode { private final RubyContext context; private final String name; private final boolean isSplatted; @Child protected UnboxedDispatchNode dispatch; public DispatchHeadNode(RubyContext context, SourceSection sourceSection, String name, boolean isSplatted) { super(context, sourceSection); assert context != null; assert name != null; this.context = context; this.name = name; this.isSplatted = isSplatted; final UninitializedDispatchNode uninitializedDispatch = new UninitializedDispatchNode(context, sourceSection, name); dispatch = adoptChild(new UninitializedBoxingDispatchNode(context, sourceSection, uninitializedDispatch)); } public Object dispatch(VirtualFrame frame, Object receiverObject, RubyProc blockObject, Object... argumentsObjects) { return dispatch.dispatch(frame, receiverObject, blockObject, argumentsObjects); } /** * Replace the entire dispatch chain with a fresh chain. Used when the situation has changed in * such a significant way that it's best to start again rather than add new specializations to * the chain. Used for example when methods appear to have been monkey-patched. */ public Object respecialize(VirtualFrame frame, String reason, Object receiverObject, RubyProc blockObject, Object... argumentObjects) { CompilerAsserts.neverPartOfCompilation(); replace(new DispatchHeadNode(context, getSourceSection(), name, isSplatted), reason); final RubyBasicObject receiverBasicObject = context.getCoreLibrary().box(receiverObject); final RubyMethod method = lookup(frame, receiverBasicObject, name); return method.call(frame.pack(), receiverBasicObject, blockObject, argumentObjects); } public UnboxedDispatchNode getDispatch() { return dispatch; } }