Mercurial > hg > graal-compiler
comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStatementWrapper.java @ 16595:618d92152d3c
SL: Added support for instrumentation.
author | David Piorkowski <david.piorkowski@oracle.com> |
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date | Thu, 24 Jul 2014 16:14:44 -0700 |
parents | |
children | 7833417c8172 |
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16592:8084d44c78d3 | 16595:618d92152d3c |
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1 /* | |
2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 package com.oracle.truffle.sl.nodes.instrument; | |
24 | |
25 import com.oracle.truffle.api.CompilerDirectives.SlowPath; | |
26 import com.oracle.truffle.api.frame.*; | |
27 import com.oracle.truffle.api.instrument.*; | |
28 import com.oracle.truffle.api.nodes.*; | |
29 import com.oracle.truffle.sl.nodes.*; | |
30 import com.oracle.truffle.sl.runtime.*; | |
31 | |
32 /** | |
33 * SLStatmentWrapper is a Truffle AST node that gets inserted as the parent to the node that it is | |
34 * wrapping. Any debugging instruments are attached to this wrapper through {@link Probe}s (which | |
35 * themselves contain the instruments). It is through this mechanism that tools can interact | |
36 * directly with the AST. <br/> | |
37 * SLStatmentWrapper specifically wraps {@link SLStatementWrapper}s and overrides the executeVoid | |
38 * function of {@link SLStatementNode} to operate on the child of the wrapper instead of the wrapper | |
39 * itself. | |
40 * | |
41 */ | |
42 public final class SLStatementWrapper extends SLStatementNode implements Wrapper { | |
43 | |
44 @Child private SLStatementNode child; | |
45 | |
46 private final Probe probe; | |
47 | |
48 public SLStatementWrapper(SLContext context, SLStatementNode child) { | |
49 super(child.getSourceSection()); | |
50 assert !(child instanceof SLStatementWrapper); | |
51 this.child = insert(child); | |
52 this.probe = context.getProbe(child.getSourceSection()); | |
53 } | |
54 | |
55 @Override | |
56 public SLStatementNode getNonWrapperNode() { | |
57 return child; | |
58 } | |
59 | |
60 public Node getChild() { | |
61 return child; | |
62 } | |
63 | |
64 public Probe getProbe() { | |
65 return probe; | |
66 } | |
67 | |
68 @SlowPath | |
69 public boolean isTaggedAs(SyntaxTag tag) { | |
70 return probe.isTaggedAs(tag); | |
71 } | |
72 | |
73 @SlowPath | |
74 public Iterable<SyntaxTag> getSyntaxTags() { | |
75 return probe.getSyntaxTags(); | |
76 } | |
77 | |
78 @SlowPath | |
79 public void tagAs(SyntaxTag tag) { | |
80 probe.tagAs(tag); | |
81 } | |
82 | |
83 @Override | |
84 public void executeVoid(VirtualFrame frame) { | |
85 this.tagAs(StandardSyntaxTag.STATEMENT); | |
86 probe.enter(child, frame); | |
87 | |
88 try { | |
89 child.executeVoid(frame); | |
90 probe.leave(child, frame); | |
91 } catch (KillException e) { | |
92 throw (e); | |
93 } catch (Exception e) { | |
94 probe.leaveExceptional(child, frame, e); | |
95 throw (e); | |
96 } | |
97 | |
98 } | |
99 } |