jdk8-mips64-public/langtools: test/tools/javac/typeAnnotations/classfile/DeadCode.java@59167312ed4e (annotated)

test/tools/javac/typeAnnotations/classfile/DeadCode.java@59167312ed4e (annotated)

test/tools/javac/typeAnnotations/classfile/DeadCode.java

Tue, 26 Jan 2010 11:23:54 -0800

author: jjg
date: Tue, 26 Jan 2010 11:23:54 -0800
changeset 480: 59167312ed4e
child 554: 9d9f26857129
permissions: -rw-r--r--

6917130: should test that annotations that have been optimized away are not emitted to classfile
Reviewed-by: jjg, darcy
Contributed-by: mali@csail.mit.edu, mernst@cs.washington.edu

 /*
  * Copyright 2009-2010 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 import java.io.*;
 import java.net.URL;
 import java.util.List;
 import com.sun.tools.classfile.*;
 /*
  * @test
  * @bug 6917130
  * @summary test that optimized away annotations are not emited to classfile
  */
 public class DeadCode {
     public static void main(String[] args) throws Exception {
         new DeadCode().run();
     }
     public void run() throws Exception {
         ClassFile cf = getClassFile("DeadCode$Test.class");
         test(cf);
         for (Field f : cf.fields) {
             test(cf, f);
         }
         for (Method m: cf.methods) {
             test(cf, m);
         }
         countAnnotations();
         if (errors > 0)
             throw new Exception(errors + " errors found");
         System.out.println("PASSED");
     }
     ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
         URL url = getClass().getResource(name);
         InputStream in = url.openStream();
         try {
             return ClassFile.read(in);
         } finally {
             in.close();
         }
     }
     /************ Helper annotations counting methods ******************/
     void test(ClassFile cf) {
         test(cf, Attribute.RuntimeVisibleTypeAnnotations, true);
         test(cf, Attribute.RuntimeInvisibleTypeAnnotations, false);
     }
     void test(ClassFile cf, Method m) {
         test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
         test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
     }
     void test(ClassFile cf, Field m) {
         test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
         test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
     }
     // test the result of Attributes.getIndex according to expectations
     // encoded in the method's name
     void test(ClassFile cf, String name, boolean visible) {
         int index = cf.attributes.getIndex(cf.constant_pool, name);
         if (index != -1) {
             Attribute attr = cf.attributes.get(index);
             assert attr instanceof RuntimeTypeAnnotations_attribute;
             RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
             all += tAttr.annotations.length;
             if (visible)
                 visibles += tAttr.annotations.length;
             else
                 invisibles += tAttr.annotations.length;
         }
     }
     // test the result of Attributes.getIndex according to expectations
     // encoded in the method's name
     void test(ClassFile cf, Method m, String name, boolean visible) {
         int index = m.attributes.getIndex(cf.constant_pool, name);
         if (index != -1) {
             Attribute attr = m.attributes.get(index);
             assert attr instanceof RuntimeTypeAnnotations_attribute;
             RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
             all += tAttr.annotations.length;
             if (visible)
                 visibles += tAttr.annotations.length;
             else
                 invisibles += tAttr.annotations.length;
         }
     }
     // test the result of Attributes.getIndex according to expectations
     // encoded in the method's name
     void test(ClassFile cf, Field m, String name, boolean visible) {
         int index = m.attributes.getIndex(cf.constant_pool, name);
         if (index != -1) {
             Attribute attr = m.attributes.get(index);
             assert attr instanceof RuntimeTypeAnnotations_attribute;
             RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
             all += tAttr.annotations.length;
             if (visible)
                 visibles += tAttr.annotations.length;
             else
                 invisibles += tAttr.annotations.length;
         }
     }
     void countAnnotations() {
         int expected_all = expected_visibles + expected_invisibles;
         if (expected_all != all) {
             errors++;
             System.err.println("expected " + expected_all
                     + " annotations but found " + all);
         }
         if (expected_visibles != visibles) {
             errors++;
             System.err.println("expected " + expected_visibles
                     + " visibles annotations but found " + visibles);
         }
         if (expected_invisibles != invisibles) {
             errors++;
             System.err.println("expected " + expected_invisibles
                     + " invisibles annotations but found " + invisibles);
         }
     }
     int errors;
     int all;
     int visibles;
     int invisibles;
     /*********************** Test class *************************/
     static int expected_invisibles = 1;
     static int expected_visibles = 0;
     static class Test {
         @interface A {}
         void test() {
             List<? extends @A Object> o = null;
             o.toString();
             @A String m;
             if (false) {
                 @A String a;
                 @A String b = "m";
                 b.toString();
                 List<? extends @A Object> c = null;
                 c.toString();
             }
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/typeAnnotations/classfile/DeadCode.java@59167312ed4e (annotated)

test/tools/javac/typeAnnotations/classfile/DeadCode.java