Mercurial > hg > graal-compiler
comparison graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/processor/TruffleProcessorTest.java @ 21420:fb17e716b03c
The annotation processor should verify proper use of @Child annotation during compilation time and prevent usage of final.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Tue, 19 May 2015 12:30:51 +0200 |
parents | |
children | 24d12404e70a |
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21419:c1bb8028ff63 | 21420:fb17e716b03c |
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1 /* | |
2 * Copyright (c) 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.api.dsl.test.processor; | |
24 | |
25 import com.oracle.truffle.dsl.processor.verify.VerifyTruffleProcessor; | |
26 import java.util.Locale; | |
27 import java.util.ServiceLoader; | |
28 import javax.annotation.processing.Processor; | |
29 import javax.tools.Diagnostic; | |
30 import javax.tools.JavaFileObject; | |
31 import static org.junit.Assert.*; | |
32 import org.junit.Test; | |
33 | |
34 /** | |
35 * Verify errors emitted by the processor. | |
36 * | |
37 * @author Jaroslav Tulach | |
38 */ | |
39 public class TruffleProcessorTest { | |
40 @Test | |
41 public void childCannotBeFinal() throws Exception { | |
42 // @formatter:off | |
43 String code = "package x.y.z;\n" + | |
44 "import com.oracle.truffle.api.nodes.Node;\n" + | |
45 "abstract class MyNode extends Node {\n" + | |
46 " @Child final MyNode first;\n" + | |
47 " MyNode(MyNode n) {\n" + | |
48 " this.first = n;\n" + | |
49 " };\n" + | |
50 "}\n"; | |
51 // @formatter:on | |
52 | |
53 Compile c = Compile.create(VerifyTruffleProcessor.class, code); | |
54 c.assertErrors(); | |
55 boolean ok = false; | |
56 StringBuilder msgs = new StringBuilder(); | |
57 for (Diagnostic<? extends JavaFileObject> e : c.getErrors()) { | |
58 String msg = e.getMessage(Locale.ENGLISH); | |
59 if (msg.contains("cannot be final")) { | |
60 ok = true; | |
61 } | |
62 msgs.append("\n").append(msg); | |
63 } | |
64 if (!ok) { | |
65 fail("Should contain warning about final:" + msgs); | |
66 } | |
67 } | |
68 | |
69 @Test | |
70 public void workAroundCannonicalDependency() throws Exception { | |
71 Class<?> myProc = VerifyTruffleProcessor.class; | |
72 assertNotNull(myProc); | |
73 StringBuilder sb = new StringBuilder(); | |
74 sb.append("Cannot find ").append(myProc); | |
75 for (Processor load : ServiceLoader.load(Processor.class)) { | |
76 sb.append("Found ").append(load); | |
77 if (myProc.isInstance(load)) { | |
78 return; | |
79 } | |
80 } | |
81 fail(sb.toString()); | |
82 } | |
83 } |