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

 /*

  * Copyright (c) 2011, 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 7096014

  * @summary Javac tokens should retain state

  */

 import com.sun.source.tree.*;

 import com.sun.source.util.*;

 import com.sun.tools.javac.tree.JCTree;

 import java.net.URI;

 import java.util.*;

 import javax.tools.*;

 public class DocCommentToplevelTest {

     enum PackageKind {

         HAS_PKG("package pkg;"),

         NO_PKG("");

         String pkgStr;

         PackageKind(String pkgStr) {

             this.pkgStr = pkgStr;

         }

     }

     enum ImportKind {

         ZERO(""),

         ONE("import java.lang.*;"),

         TWO("import java.lang.*; import java.util.*;");

         String importStr;

         ImportKind(String importStr) {

             this.importStr = importStr;

         }

     }

     enum ModifierKind {

         DEFAULT(""),

         PUBLIC("public");

         String modStr;

         ModifierKind(String modStr) {

             this.modStr = modStr;

         }

     }

     enum ToplevelDocKind {

         HAS_DOC("/** Toplevel! */"),

         NO_DOC("");

         String docStr;

         ToplevelDocKind(String docStr) {

             this.docStr = docStr;

         }

     }

     static int errors;

     static int checks;

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

         //create default shared JavaCompiler - reused across multiple compilations

         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

         StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);

         for (PackageKind pk : PackageKind.values()) {

             for (ImportKind ik : ImportKind.values()) {

                 for (ModifierKind mk1 : ModifierKind.values()) {

                     for (ModifierKind mk2 : ModifierKind.values()) {

                         for (ToplevelDocKind tdk : ToplevelDocKind.values()) {

                             new DocCommentToplevelTest(pk, ik, mk1, mk2, tdk).run(comp, fm);

                         }

                     }

                 }

             }

         }

         if (errors > 0)

             throw new AssertionError(errors + " errors found");

         System.out.println(checks + " checks were made");

     }

     PackageKind pk;

     ImportKind ik;

     ModifierKind mk1;

     ModifierKind mk2;

     ToplevelDocKind tdk;

     JavaSource source;

     DocCommentToplevelTest(PackageKind pk, ImportKind ik, ModifierKind mk1, ModifierKind mk2, ToplevelDocKind tdk) {

         this.pk = pk;

         this.ik = ik;

         this.mk1 = mk1;

         this.mk2 = mk2;

         this.tdk = tdk;

         source = new JavaSource();

     }

     void run(JavaCompiler comp, JavaFileManager fm) throws Exception {

         JavacTask task = (JavacTask)comp.getTask(null, fm, null, Arrays.asList("-printsource"), null, Arrays.asList(source));

         for (CompilationUnitTree cu: task.parse()) {

             check(cu);

         }

     }

     void check(CompilationUnitTree cu) {

         checks++;

         new TreeScanner<ClassTree,Void>() {

             Map<JCTree, String> docComments;

             @Override

             public ClassTree visitCompilationUnit(CompilationUnitTree node, Void unused) {

                 docComments = ((JCTree.JCCompilationUnit)node).docComments;

                 boolean expectedComment = tdk == ToplevelDocKind.HAS_DOC &&

                         (pk != PackageKind.NO_PKG || ik != ImportKind.ZERO);

                 boolean foundComment = docComments.get(node) != null;

                 if (expectedComment != foundComment) {

                     error("Unexpected comment " + docComments.get(node) + " on toplevel");

                 }

                 return super.visitCompilationUnit(node, null);

             }

             @Override

             public ClassTree visitClass(ClassTree node, Void unused) {

                 boolean expectedComment = tdk == ToplevelDocKind.HAS_DOC &&

                         pk == PackageKind.NO_PKG && ik == ImportKind.ZERO &&

                         node.getSimpleName().toString().equals("First");

                 boolean foundComment = docComments.get(node) != null;

                 if (expectedComment != foundComment) {

                     error("Unexpected comment " + docComments.get(node) + " on class " + node.getSimpleName());

                 }

                 return super.visitClass(node, unused);

             }

         }.scan(cu, null);

     }

     void error(String msg) {

         System.err.println("Error: " + msg);

         System.err.println("Source: " + source.source);

         errors++;

     }

     class JavaSource extends SimpleJavaFileObject {

         String template = "#D\n#P\n#I\n" +

                           "#M1 class First { }\n" +

                           "#M2 class Second { }\n";

         String source;

         public JavaSource() {

             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

             source = template.replace("#P", pk.pkgStr)

                              .replace("#I", ik.importStr)

                              .replace("#M1", mk1.modStr)

                              .replace("#M2", mk2.modStr)

                              .replace("#D", tdk.docStr);

         }

         @Override

         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

             return source;

         }

     }

 }