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comparison graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/methods/locals/LevelFlipFlopStateNode.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.methods.locals;
11
12 import com.oracle.truffle.api.*;
13 import com.oracle.truffle.api.frame.*;
14 import com.oracle.truffle.ruby.runtime.*;
15
16 public class LevelFlipFlopStateNode extends FlipFlopStateNode {
17
18 private final int level;
19 private final FrameSlot frameSlot;
20
21 public LevelFlipFlopStateNode(SourceSection sourceSection, int level, FrameSlot frameSlot) {
22 super(sourceSection);
23 this.level = level;
24 this.frameSlot = frameSlot;
25 }
26
27 @Override
28 public boolean getState(VirtualFrame frame) {
29 final MaterializedFrame levelFrame = RubyArguments.getDeclarationFrame(frame, level);
30
31 try {
32 return levelFrame.getBoolean(frameSlot);
33 } catch (FrameSlotTypeException e) {
34 throw new IllegalStateException();
35 }
36 }
37
38 @Override
39 public void setState(VirtualFrame frame, boolean state) {
40 final MaterializedFrame levelFrame = RubyArguments.getDeclarationFrame(frame, level);
41 levelFrame.setBoolean(frameSlot, state);
42 }
43
44 }