Mercurial > hg > graal-jvmci-8
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/processor/TruffleProcessorTest.java Tue May 19 12:30:51 2015 +0200 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.truffle.api.dsl.test.processor; + +import com.oracle.truffle.dsl.processor.verify.VerifyTruffleProcessor; +import java.util.Locale; +import java.util.ServiceLoader; +import javax.annotation.processing.Processor; +import javax.tools.Diagnostic; +import javax.tools.JavaFileObject; +import static org.junit.Assert.*; +import org.junit.Test; + +/** + * Verify errors emitted by the processor. + * + * @author Jaroslav Tulach + */ +public class TruffleProcessorTest { + @Test + public void childCannotBeFinal() throws Exception { + // @formatter:off + String code = "package x.y.z;\n" + + "import com.oracle.truffle.api.nodes.Node;\n" + + "abstract class MyNode extends Node {\n" + + " @Child final MyNode first;\n" + + " MyNode(MyNode n) {\n" + + " this.first = n;\n" + + " };\n" + + "}\n"; + // @formatter:on + + Compile c = Compile.create(VerifyTruffleProcessor.class, code); + c.assertErrors(); + boolean ok = false; + StringBuilder msgs = new StringBuilder(); + for (Diagnostic<? extends JavaFileObject> e : c.getErrors()) { + String msg = e.getMessage(Locale.ENGLISH); + if (msg.contains("cannot be final")) { + ok = true; + } + msgs.append("\n").append(msg); + } + if (!ok) { + fail("Should contain warning about final:" + msgs); + } + } + + @Test + public void workAroundCannonicalDependency() throws Exception { + Class<?> myProc = VerifyTruffleProcessor.class; + assertNotNull(myProc); + StringBuilder sb = new StringBuilder(); + sb.append("Cannot find ").append(myProc); + for (Processor load : ServiceLoader.load(Processor.class)) { + sb.append("Found ").append(load); + if (myProc.isInstance(load)) { + return; + } + } + fail(sb.toString()); + } +}