Mercurial > jdk8-mips64-public > langtools / changeset

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/typeAnnotations/classfile/DeadCode.java	Tue Jan 26 11:23:54 2010 -0800
     1.3 @@ -0,0 +1,181 @@
     1.4 +/*
     1.5 + * Copyright 2009-2010 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + */
    1.26 +
    1.27 +import java.io.*;
    1.28 +import java.net.URL;
    1.29 +import java.util.List;
    1.30 +
    1.31 +import com.sun.tools.classfile.*;
    1.32 +
    1.33 +/*
    1.34 + * @test
    1.35 + * @bug 6917130
    1.36 + * @summary test that optimized away annotations are not emited to classfile
    1.37 + */
    1.38 +
    1.39 +public class DeadCode {
    1.40 +    public static void main(String[] args) throws Exception {
    1.41 +        new DeadCode().run();
    1.42 +    }
    1.43 +
    1.44 +    public void run() throws Exception {
    1.45 +        ClassFile cf = getClassFile("DeadCode$Test.class");
    1.46 +        test(cf);
    1.47 +        for (Field f : cf.fields) {
    1.48 +            test(cf, f);
    1.49 +        }
    1.50 +        for (Method m: cf.methods) {
    1.51 +            test(cf, m);
    1.52 +        }
    1.53 +
    1.54 +        countAnnotations();
    1.55 +
    1.56 +        if (errors > 0)
    1.57 +            throw new Exception(errors + " errors found");
    1.58 +        System.out.println("PASSED");
    1.59 +    }
    1.60 +
    1.61 +    ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
    1.62 +        URL url = getClass().getResource(name);
    1.63 +        InputStream in = url.openStream();
    1.64 +        try {
    1.65 +            return ClassFile.read(in);
    1.66 +        } finally {
    1.67 +            in.close();
    1.68 +        }
    1.69 +    }
    1.70 +
    1.71 +    /************ Helper annotations counting methods ******************/
    1.72 +    void test(ClassFile cf) {
    1.73 +        test(cf, Attribute.RuntimeVisibleTypeAnnotations, true);
    1.74 +        test(cf, Attribute.RuntimeInvisibleTypeAnnotations, false);
    1.75 +    }
    1.76 +
    1.77 +    void test(ClassFile cf, Method m) {
    1.78 +        test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
    1.79 +        test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
    1.80 +    }
    1.81 +
    1.82 +    void test(ClassFile cf, Field m) {
    1.83 +        test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
    1.84 +        test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
    1.85 +    }
    1.86 +
    1.87 +    // test the result of Attributes.getIndex according to expectations
    1.88 +    // encoded in the method's name
    1.89 +    void test(ClassFile cf, String name, boolean visible) {
    1.90 +        int index = cf.attributes.getIndex(cf.constant_pool, name);
    1.91 +        if (index != -1) {
    1.92 +            Attribute attr = cf.attributes.get(index);
    1.93 +            assert attr instanceof RuntimeTypeAnnotations_attribute;
    1.94 +            RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
    1.95 +            all += tAttr.annotations.length;
    1.96 +            if (visible)
    1.97 +                visibles += tAttr.annotations.length;
    1.98 +            else
    1.99 +                invisibles += tAttr.annotations.length;
   1.100 +        }
   1.101 +    }
   1.102 +
   1.103 +    // test the result of Attributes.getIndex according to expectations
   1.104 +    // encoded in the method's name
   1.105 +    void test(ClassFile cf, Method m, String name, boolean visible) {
   1.106 +        int index = m.attributes.getIndex(cf.constant_pool, name);
   1.107 +        if (index != -1) {
   1.108 +            Attribute attr = m.attributes.get(index);
   1.109 +            assert attr instanceof RuntimeTypeAnnotations_attribute;
   1.110 +            RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
   1.111 +            all += tAttr.annotations.length;
   1.112 +            if (visible)
   1.113 +                visibles += tAttr.annotations.length;
   1.114 +            else
   1.115 +                invisibles += tAttr.annotations.length;
   1.116 +        }
   1.117 +    }
   1.118 +
   1.119 +    // test the result of Attributes.getIndex according to expectations
   1.120 +    // encoded in the method's name
   1.121 +    void test(ClassFile cf, Field m, String name, boolean visible) {
   1.122 +        int index = m.attributes.getIndex(cf.constant_pool, name);
   1.123 +        if (index != -1) {
   1.124 +            Attribute attr = m.attributes.get(index);
   1.125 +            assert attr instanceof RuntimeTypeAnnotations_attribute;
   1.126 +            RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
   1.127 +            all += tAttr.annotations.length;
   1.128 +            if (visible)
   1.129 +                visibles += tAttr.annotations.length;
   1.130 +            else
   1.131 +                invisibles += tAttr.annotations.length;
   1.132 +        }
   1.133 +    }
   1.134 +
   1.135 +    void countAnnotations() {
   1.136 +        int expected_all = expected_visibles + expected_invisibles;
   1.137 +
   1.138 +        if (expected_all != all) {
   1.139 +            errors++;
   1.140 +            System.err.println("expected " + expected_all
   1.141 +                    + " annotations but found " + all);
   1.142 +        }
   1.143 +
   1.144 +        if (expected_visibles != visibles) {
   1.145 +            errors++;
   1.146 +            System.err.println("expected " + expected_visibles
   1.147 +                    + " visibles annotations but found " + visibles);
   1.148 +        }
   1.149 +
   1.150 +        if (expected_invisibles != invisibles) {
   1.151 +            errors++;
   1.152 +            System.err.println("expected " + expected_invisibles
   1.153 +                    + " invisibles annotations but found " + invisibles);
   1.154 +        }
   1.155 +
   1.156 +    }
   1.157 +
   1.158 +    int errors;
   1.159 +    int all;
   1.160 +    int visibles;
   1.161 +    int invisibles;
   1.162 +
   1.163 +    /*********************** Test class *************************/
   1.164 +    static int expected_invisibles = 1;
   1.165 +    static int expected_visibles = 0;
   1.166 +    static class Test {
   1.167 +        @interface A {}
   1.168 +
   1.169 +        void test() {
   1.170 +            List<? extends @A Object> o = null;
   1.171 +            o.toString();
   1.172 +
   1.173 +            @A String m;
   1.174 +            if (false) {
   1.175 +                @A String a;
   1.176 +                @A String b = "m";
   1.177 +                b.toString();
   1.178 +                List<? extends @A Object> c = null;
   1.179 +                c.toString();
   1.180 +            }
   1.181 +        }
   1.182 +    }
   1.183 +
   1.184 +}