Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2013, 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.

  */

 /*

  * @test

  * @bug 8017216 8019422 8019421

  * @summary verify start and end positions

  * @run main TreeEndPosTest

  */

 import java.io.ByteArrayOutputStream;

 import java.io.File;

 import java.io.IOException;

 import java.io.PrintWriter;

 import java.net.URI;

 import java.util.ArrayList;

 import java.util.List;

 import javax.tools.Diagnostic;

 import javax.tools.DiagnosticCollector;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaFileManager;

 import javax.tools.JavaFileObject;

 import javax.tools.SimpleJavaFileObject;

 import javax.tools.ToolProvider;

 public class TreeEndPosTest {

     private static JavaFileManager getJavaFileManager(JavaCompiler compiler,

             DiagnosticCollector dc) {

         return compiler.getStandardFileManager(dc, null, null);

     }

     static class JavaSource extends SimpleJavaFileObject {

         final String source;

         int startPos;

         int endPos;

         private JavaSource(String filename, String source) {

             super(URI.create("myfo:/" + filename), JavaFileObject.Kind.SOURCE);

             this.source = source;

         }

         @Override

         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

             return source;

         }

         static JavaSource createJavaSource(String preamble, String body,

                 String postamble, String expected) {

             JavaSource js = createJavaSource(preamble, body, postamble, -1, -1);

             js.startPos = js.source.indexOf(expected);

             js.endPos   = js.startPos + expected.length();

             return js;

         }

         static JavaSource createJavaSource(String body, String expected) {

             return createJavaSource(null, body, null, expected);

         }

         private static JavaSource createJavaSource(String preamble, String body,

                 String postamble, int start, int end) {

             final String name = "Bug";

             StringBuilder code = new StringBuilder();

             if (preamble != null) {

                 code.append(preamble);

             }

             code.append("public class " + name + "{");

             if (body != null) {

                 code.append(body);

             }

             code.append("}");

             if (postamble != null) {

                 code.append(postamble);

             }

             JavaSource js = new JavaSource(name + ".java", code.toString());

             js.startPos = start;

             js.endPos = end;

             return js;

         }

     }

     public static void main(String... args) throws IOException {

         testUninitializedVariable();

         testMissingAnnotationValue();

         testFinalVariableWithDefaultConstructor();

         testFinalVariableWithConstructor();

     }

     static void testUninitializedVariable() throws IOException {

         compile(JavaSource.createJavaSource("Object o = new A().new B(); class A { }",

                 "B()"));

     }

     static void testMissingAnnotationValue() throws IOException {

         compile(JavaSource.createJavaSource("@Foo(\"vvvv\")",

                 null, "@interface Foo { }", "\"vvvv\""));

     }

     static void testFinalVariableWithDefaultConstructor() throws IOException {

         compile(JavaSource.createJavaSource("private static final String Foo; public void bar() { }",

                 "private static final String Foo;"));

     }

     static void testFinalVariableWithConstructor() throws IOException {

         compile(JavaSource.createJavaSource("public Bug (){} private static final String Foo; public void bar() { }",

                 "{}"));

     }

     static void compile(JavaSource src) throws IOException {

         ByteArrayOutputStream ba = new ByteArrayOutputStream();

         PrintWriter writer = new PrintWriter(ba);

         File tempDir = new File(".");

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         DiagnosticCollector dc = new DiagnosticCollector();

         JavaFileManager javaFileManager = getJavaFileManager(compiler, dc);

         List<String> options = new ArrayList<>();

         options.add("-cp");

         options.add(tempDir.getPath());

         options.add("-d");

         options.add(tempDir.getPath());

         options.add("-XDshouldStopPolicy=GENERATE");

         List<JavaFileObject> sources = new ArrayList<>();

         sources.add(src);

         JavaCompiler.CompilationTask task =

                 compiler.getTask(writer, javaFileManager,

                 dc, options, null,

                 sources);

         task.call();

         for (Diagnostic diagnostic : (List<Diagnostic>) dc.getDiagnostics()) {

             long actualStart = diagnostic.getStartPosition();

             long actualEnd = diagnostic.getEndPosition();

             System.out.println("Source: " + src.source);

             System.out.println("Diagnostic: " + diagnostic);

             System.out.print("Start position: Expected: " + src.startPos);

             System.out.println(", Actual: " + actualStart);

             System.out.print("End position: Expected: " + src.endPos);

             System.out.println(", Actual: " + actualEnd);

             if (src.startPos != actualStart || src.endPos != actualEnd) {

                 throw new RuntimeException("error: trees don't match");

             }

         }

     }

 }