aoqi@0: /*
aoqi@0:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @test
aoqi@0:  * @bug 8038788
aoqi@0:  * @summary Verify proper handling of annotations after method's type parameters.
aoqi@0:  * @build AfterMethodTypeParams
aoqi@0:  * @run main AfterMethodTypeParams
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.io.IOException;
aoqi@0: import java.io.StringWriter;
aoqi@0: import java.net.URI;
aoqi@0: import java.util.*;
aoqi@0: 
aoqi@0: import javax.lang.model.element.Name;
aoqi@0: import javax.tools.*;
aoqi@0: 
aoqi@0: import com.sun.source.tree.*;
aoqi@0: import com.sun.source.util.*;
aoqi@0: 
aoqi@0: public class AfterMethodTypeParams {
aoqi@0: 
aoqi@0:     public static void main(String... args) throws IOException {
aoqi@0:         new AfterMethodTypeParams().run();
aoqi@0:     }
aoqi@0: 
aoqi@0:     void run() throws IOException {
aoqi@0:         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
aoqi@0: 
aoqi@0:         for (TestCase tc : testCases) {
aoqi@0:             String test = TEMPLATE.replace("CONTENT", tc.snippet);
aoqi@0:             List<JavaFileObject> files = Arrays.asList(new MyFileObject(test));
aoqi@0:             StringWriter out = new StringWriter();
aoqi@0:             List<String> options = Arrays.asList("-XDrawDiagnostics", "-XDshouldStopPolicy=FLOW");
aoqi@0:             JavacTask task = (JavacTask) compiler.getTask(out, null, null, options, null, files);
aoqi@0: 
aoqi@0:             new TreePathScanner<Void, Void>() {
aoqi@0:                 boolean seenAnnotation;
aoqi@0:                 @Override
aoqi@0:                 public Void visitAnnotation(AnnotationTree node, Void p) {
aoqi@0:                     Name name = ((IdentifierTree) node.getAnnotationType()).getName();
aoqi@0:                     seenAnnotation |= name.contentEquals("TA") || name.contentEquals("DA");
aoqi@0:                     return null;
aoqi@0:                 }
aoqi@0:                 @Override
aoqi@0:                 public Void visitCompilationUnit(CompilationUnitTree node, Void p) {
aoqi@0:                     super.visitCompilationUnit(node, p);
aoqi@0:                     if (!seenAnnotation)
aoqi@0:                         error(test, "Annotation was missing");
aoqi@0:                     return null;
aoqi@0:                 }
aoqi@0:             }.scan(task.parse(), null);
aoqi@0: 
aoqi@0:             task.analyze();
aoqi@0: 
aoqi@0:             if (!tc.error.equals(out.toString().trim())) {
aoqi@0:                 error(test, "Incorrect errors: " + out.toString());
aoqi@0:             }
aoqi@0:         }
aoqi@0: 
aoqi@0:         if (errors > 0) {
aoqi@0:             throw new IllegalStateException("Errors found");
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     int errors;
aoqi@0: 
aoqi@0:     void error(String code, String error) {
aoqi@0:         System.out.println("Error detected: " + error);
aoqi@0:         System.out.println("Code:");
aoqi@0:         System.out.println(code);
aoqi@0:         errors++;
aoqi@0:     }
aoqi@0: 
aoqi@0:     static String TEMPLATE =
aoqi@0:         "import java.lang.annotation.*;\n" +
aoqi@0:         "public class Test {\n" +
aoqi@0:         "    CONTENT\n" +
aoqi@0:         "}\n" +
aoqi@0:         "@Target({ElementType.METHOD, ElementType.CONSTRUCTOR})\n" +
aoqi@0:         "@interface DA { }\n" +
aoqi@0:         "@Target(ElementType.TYPE_USE)\n" +
aoqi@0:         "@interface TA { }\n";
aoqi@0: 
aoqi@0:     static class MyFileObject extends SimpleJavaFileObject {
aoqi@0:         final String text;
aoqi@0:         public MyFileObject(String text) {
aoqi@0:             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             this.text = text;
aoqi@0:         }
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return text;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static TestCase[] testCases = new TestCase[] {
aoqi@0:         new TestCase("<T> @DA int foo1() { return 0;}", ""),
aoqi@0:         new TestCase("<T> @DA void foo2() { }", ""),
aoqi@0:         new TestCase("<T> @TA int foo3() { return 0;}", ""),
aoqi@0:         new TestCase("<T> @TA void foo4() { }",
aoqi@0:                 "Test.java:3:9: compiler.err.annotation.type.not.applicable"),
aoqi@0:         new TestCase("<T> @DA Test() { }", "Test.java:3:9: compiler.err.illegal.start.of.type"),
aoqi@0:         new TestCase("<T> @TA Test() { }", "Test.java:3:9: compiler.err.illegal.start.of.type"),
aoqi@0:     };
aoqi@0: 
aoqi@0:     static class TestCase {
aoqi@0:         final String snippet;
aoqi@0:         final String error;
aoqi@0:         public TestCase(String snippet, String error) {
aoqi@0:             this.snippet = snippet;
aoqi@0:             this.error = error;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }
aoqi@0: