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

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  */

 /**

  * @test

  * @bug     7046348

  * @summary Regression: javac complains of missing classfile for a seemingly unrelated interface

  */

 import java.io.File;

 import java.net.URI;

 import java.util.Arrays;

 import javax.tools.Diagnostic;

 import javax.tools.DiagnosticListener;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaCompiler.CompilationTask;

 import javax.tools.JavaFileObject;

 import javax.tools.SimpleJavaFileObject;

 import javax.tools.ToolProvider;

 public class EagerInterfaceCompletionTest {

     JavaCompiler javacTool;

     File testDir;

     HierarchyKind hierarchyKind;

     TestKind testKind;

     ActionKind actionKind;

     EagerInterfaceCompletionTest(JavaCompiler javacTool, File testDir,

             HierarchyKind hierarchyKind, TestKind testKind, ActionKind actionKind) {

         this.javacTool = javacTool;

         this.hierarchyKind = hierarchyKind;

         this.testDir = testDir;

         this.testKind = testKind;

         this.actionKind = actionKind;

     }

     void test() {

         testDir.mkdirs();

         compile(null, hierarchyKind.source);

         actionKind.doAction(this);

         DiagnosticChecker dc = new DiagnosticChecker();

         compile(dc, testKind.source);

         if (testKind.completionFailure(actionKind, hierarchyKind) != dc.errorFound) {

             if (dc.errorFound) {

                 error("Unexpected completion failure" +

                       "\nhierarhcyKind " + hierarchyKind +

                       "\ntestKind " + testKind +

                       "\nactionKind " + actionKind);

             } else {

                 error("Missing completion failure " +

                           "\nhierarhcyKind " + hierarchyKind +

                           "\ntestKind " + testKind +

                           "\nactionKind " + actionKind);

             }

         }

     }

     void compile(DiagnosticChecker dc, JavaSource... sources) {

         try {

             CompilationTask ct = javacTool.getTask(null, null, dc,

                     Arrays.asList("-d", testDir.getAbsolutePath(), "-cp", testDir.getAbsolutePath()),

                     null, Arrays.asList(sources));

             ct.call();

         }

         catch (Exception e) {

             e.printStackTrace();

             error("Internal compilation error");

         }

     }

     void removeClass(String classToRemoveStr) {

         File classToRemove = new File(testDir, classToRemoveStr);

         if (!classToRemove.exists()) {

             error("Expected file " + classToRemove + " does not exists in folder " + testDir);

         }

         classToRemove.delete();

     };

     void error(String msg) {

         System.err.println(msg);

         nerrors++;

     }

     class DiagnosticChecker implements DiagnosticListener<JavaFileObject> {

         boolean errorFound = false;

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

             errorFound = true;

         }

     }

     //global declarations

     enum HierarchyKind {

         INTERFACE("interface A { boolean f = false; void m(); }\n" +

                   "class B implements A { public void m() {} }"),

         CLASS("class A { boolean f; void m() {} }\n" +

               "class B extends A { void m() {} }"),

         ABSTRACT_CLASS("abstract class A { boolean f; abstract void m(); }\n" +

                        "class B extends A { void m() {} }");

         JavaSource source;

         private HierarchyKind(String code) {

             this.source = new JavaSource("Test1.java", code);

         }

     }

     enum ActionKind {

         REMOVE_A("A.class"),

         REMOVE_B("B.class");

         String classFile;

         private ActionKind(String classFile) {

             this.classFile = classFile;

         }

         void doAction(EagerInterfaceCompletionTest test) {

             test.removeClass(classFile);

         };

     }

     enum TestKind {

         ACCESS_ONLY("class C { B b; }"),

         SUPER("class C extends B {}"),

         METHOD("class C { void test(B b) { b.m(); } }"),

         FIELD("class C { void test(B b) { boolean b2 = b.f; } }"),

         CONSTR("class C { void test() { new B(); } }");

         JavaSource source;

         private TestKind(final String code) {

             this.source = new JavaSource("Test2.java", code);

         }

         boolean completionFailure(ActionKind ak, HierarchyKind hk) {

             switch (this) {

                 case ACCESS_ONLY:

                 case CONSTR: return ak == ActionKind.REMOVE_B;

                 case FIELD:

                 case SUPER: return true;

                 case METHOD: return hk != HierarchyKind.INTERFACE || ak == ActionKind.REMOVE_B;

                 default: throw new AssertionError("Unexpected test kind " + this);

             }

         }

     }

     public static void main(String[] args) throws Exception {

         String SCRATCH_DIR = System.getProperty("user.dir");

         JavaCompiler javacTool = ToolProvider.getSystemJavaCompiler();

         int n = 0;

         for (HierarchyKind hierarchyKind : HierarchyKind.values()) {

             for (TestKind testKind : TestKind.values()) {

                 for (ActionKind actionKind : ActionKind.values()) {

                     File testDir = new File(SCRATCH_DIR, "test"+n);

                     new EagerInterfaceCompletionTest(javacTool, testDir, hierarchyKind, testKind, actionKind).test();

                     n++;

                 }

             }

         }

         if (nerrors > 0) {

             throw new AssertionError("Some errors have been detected");

         }

     }

     static class JavaSource extends SimpleJavaFileObject {

         String source;

         public 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 int nerrors = 0;

 }