Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/objects/instancevariables/ReadMissingInstanceVariableNode.java @ 13514:0fbee3eb71f0
Ruby: import project.
author | Chris Seaton <chris.seaton@oracle.com> |
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date | Mon, 06 Jan 2014 17:12:09 +0000 |
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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/objects/instancevariables/ReadMissingInstanceVariableNode.java Mon Jan 06 17:12:09 2014 +0000 @@ -0,0 +1,38 @@ +/* + * 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.objects.instancevariables; + +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.objects.*; + +@NodeInfo(shortName = "@missing") +public class ReadMissingInstanceVariableNode extends ReadSpecializedInstanceVariableNode { + + public ReadMissingInstanceVariableNode(SourceSection sourceSection, String name, RubyNode receiver, ObjectLayout objectLayout, RubyContext context) { + super(context, sourceSection, name, receiver, objectLayout); + } + + @Override + public Object execute(VirtualFrame frame) { + final RubyBasicObject receiverObject = (RubyBasicObject) receiver.execute(frame); + + if (!receiverObject.getObjectLayout().contains(objectLayout)) { + CompilerDirectives.transferToInterpreter(); + replace(respecialize(receiverObject)); + return receiverObject.getInstanceVariable(name); + } + + return NilPlaceholder.INSTANCE; + } +}