Mercurial > hg > graal-compiler
comparison graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/methods/CatchReturnNode.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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13528:5a0c694ef735 | 13529:856c2c294f84 |
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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; | |
11 | |
12 import com.oracle.truffle.api.*; | |
13 import com.oracle.truffle.api.frame.*; | |
14 import com.oracle.truffle.api.utilities.*; | |
15 import com.oracle.truffle.ruby.nodes.*; | |
16 import com.oracle.truffle.ruby.runtime.*; | |
17 import com.oracle.truffle.ruby.runtime.control.*; | |
18 | |
19 /** | |
20 * Catch a {@code return} jump at the root of a method. | |
21 */ | |
22 public class CatchReturnNode extends RubyNode { | |
23 | |
24 @Child protected RubyNode body; | |
25 private final long returnID; | |
26 | |
27 private final BranchProfile returnProfile = new BranchProfile(); | |
28 private final BranchProfile returnToOtherMethodProfile = new BranchProfile(); | |
29 | |
30 public CatchReturnNode(RubyContext context, SourceSection sourceSection, RubyNode body, long returnID) { | |
31 super(context, sourceSection); | |
32 this.body = adoptChild(body); | |
33 this.returnID = returnID; | |
34 } | |
35 | |
36 public CatchReturnNode(CatchReturnNode prev) { | |
37 super(prev); | |
38 returnID = prev.returnID; | |
39 } | |
40 | |
41 @Override | |
42 public Object execute(VirtualFrame frame) { | |
43 try { | |
44 return body.execute(frame); | |
45 } catch (ReturnException e) { | |
46 returnProfile.enter(); | |
47 | |
48 if (e.getReturnID() == returnID) { | |
49 return e.getValue(); | |
50 } else { | |
51 returnToOtherMethodProfile.enter(); | |
52 throw e; | |
53 } | |
54 } | |
55 } | |
56 | |
57 } |