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comparison graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/objects/instancevariables/ReadFixnumInstanceVariableNode.java @ 13514:0fbee3eb71f0

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Ruby: import project.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 06 Jan 2014 17:12:09 +0000
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13513:64a23ce736a0 13514:0fbee3eb71f0
1 /*
2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
4 * redistribute it and/or modify it under the terms of the:
5 *
6 * Eclipse Public License version 1.0
7 * GNU General Public License version 2
8 * GNU Lesser General Public License version 2.1
9 */
10 package com.oracle.truffle.ruby.nodes.objects.instancevariables;
11
12 import com.oracle.truffle.api.*;
13 import com.oracle.truffle.api.frame.*;
14 import com.oracle.truffle.api.nodes.*;
15 import com.oracle.truffle.ruby.nodes.*;
16 import com.oracle.truffle.ruby.runtime.*;
17 import com.oracle.truffle.ruby.runtime.objects.*;
18
19 @NodeInfo(shortName = "@Fixnum")
20 public class ReadFixnumInstanceVariableNode extends ReadSpecializedInstanceVariableNode {
21
22 private final FixnumStorageLocation storageLocation;
23
24 public ReadFixnumInstanceVariableNode(RubyContext context, SourceSection sourceSection, String name, RubyNode receiver, ObjectLayout objectLayout, FixnumStorageLocation storageLocation) {
25 super(context, sourceSection, name, receiver, objectLayout);
26 this.storageLocation = storageLocation;
27 }
28
29 @Override
30 public int executeFixnum(VirtualFrame frame) throws UnexpectedResultException {
31 final RubyBasicObject receiverObject = (RubyBasicObject) receiver.execute(frame);
32
33 final ObjectLayout receiverLayout = receiverObject.getObjectLayout();
34
35 final boolean condition = receiverLayout == objectLayout;
36
37 if (condition) {
38 assert receiverLayout != null;
39 return storageLocation.readFixnum(receiverObject, condition);
40 } else {
41 CompilerDirectives.transferToInterpreter();
42 replace(respecialize(receiverObject));
43 throw new UnexpectedResultException(receiverObject.getInstanceVariable(name));
44 }
45 }
46
47 @Override
48 public Object execute(VirtualFrame frame) {
49 try {
50 return executeFixnum(frame);
51 } catch (UnexpectedResultException e) {
52 return e.getResult();
53 }
54 }
55
56 }