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 7030687

  * @summary Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class

  */

 import com.sun.source.util.JavacTask;

 import java.net.URI;

 import java.util.Arrays;

 import javax.tools.Diagnostic;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaFileObject;

 import javax.tools.SimpleJavaFileObject;

 import javax.tools.StandardJavaFileManager;

 import javax.tools.ToolProvider;

 public class ParserTest {

     enum TypeArgumentKind {

         NONE(""),

         EXPLICIT("<String>"),

         DIAMOND("<>");

         String typeargStr;

         private TypeArgumentKind(String typeargStr) {

             this.typeargStr = typeargStr;

         }

     }

     enum TypeQualifierArity {

         ONE(1, "A1#TA1"),

         TWO(2, "A1#TA1.A2#TA2"),

         THREE(3, "A1#TA1.A2#TA2.A3#TA3"),

         FOUR(4, "A1#TA1.A2#TA2.A3#TA3.A4#TA4");

         int n;

         String qualifierStr;

         private TypeQualifierArity(int n, String qualifierStr) {

             this.n = n;

             this.qualifierStr = qualifierStr;

         }

         String getType(TypeArgumentKind... typeArgumentKinds) {

             String res = qualifierStr;

             for (int i = 1 ; i <= typeArgumentKinds.length ; i++) {

                 res = res.replace("#TA" + i, typeArgumentKinds[i-1].typeargStr);

             }

             return res;

         }

     }

     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 (TypeQualifierArity arity : TypeQualifierArity.values()) {

             for (TypeArgumentKind tak1 : TypeArgumentKind.values()) {

                 if (arity == TypeQualifierArity.ONE) {

                     new ParserTest(arity, tak1).run(comp, fm);

                     continue;

                 }

                 for (TypeArgumentKind tak2 : TypeArgumentKind.values()) {

                     if (arity == TypeQualifierArity.TWO) {

                         new ParserTest(arity, tak1, tak2).run(comp, fm);

                         continue;

                     }

                     for (TypeArgumentKind tak3 : TypeArgumentKind.values()) {

                         if (arity == TypeQualifierArity.THREE) {

                             new ParserTest(arity, tak1, tak2, tak3).run(comp, fm);

                             continue;

                         }

                         for (TypeArgumentKind tak4 : TypeArgumentKind.values()) {

                             new ParserTest(arity, tak1, tak2, tak3, tak4).run(comp, fm);

                         }

                     }

                 }

             }

         }

     }

     TypeQualifierArity qualifierArity;

     TypeArgumentKind[] typeArgumentKinds;

     JavaSource source;

     DiagnosticChecker diagChecker;

     ParserTest(TypeQualifierArity qualifierArity, TypeArgumentKind... typeArgumentKinds) {

         this.qualifierArity = qualifierArity;

         this.typeArgumentKinds = typeArgumentKinds;

         this.source = new JavaSource();

         this.diagChecker = new DiagnosticChecker();

     }

     class JavaSource extends SimpleJavaFileObject {

         String template = "class Test {\n" +

                               "R res = new #T();\n" +

                           "}\n";

         String source;

         public JavaSource() {

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

             source = template.replace("#T", qualifierArity.getType(typeArgumentKinds));

         }

         @Override

         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

             return source;

         }

     }

     void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {

         JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,

                 null, null, Arrays.asList(source));

         ct.parse();

         check();

     }

     void check() {

         boolean errorExpected = false;

         for (int i = 0 ; i < qualifierArity.n - 1 ; i++) {

             if (typeArgumentKinds[i] == TypeArgumentKind.DIAMOND) {

                 errorExpected = true;

                 break;

             }

         }

         if (errorExpected != diagChecker.errorFound) {

             throw new Error("invalid diagnostics for source:\n" +

                 source.getCharContent(true) +

                 "\nFound error: " + diagChecker.errorFound +

                 "\nExpected error: " + errorExpected);

         }

     }

     static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {

         boolean errorFound;

         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {

             if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {

                 errorFound = true;

             }

         }

     }

 }