1 /*
   2  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug     6519115
  27  * @summary Verify MirroredTypeException vs MirroredTypesException is thrown
  28  * @library ../../../../lib
  29  * @build JavacTestingAbstractProcessor
  30  * @compile Plurality.java
  31  * @compile -processor Plurality -proc:only Plurality.java
  32  * @author  Joseph D. Darcy
  33  */
  34 import java.lang.annotation.*;
  35 import java.math.BigDecimal;
  36 import java.util.*;
  37 import javax.annotation.processing.*;
  38 import javax.lang.model.*;
  39 import javax.lang.model.element.*;
  40 import javax.lang.model.type.*;
  41 import javax.lang.model.util.*;
  42 
  43 @P0
  44 @P1
  45 @P2
  46 @S1
  47 public class Plurality extends JavacTestingAbstractProcessor {
  48     private boolean executed = false;
  49 
  50     public boolean process(Set<? extends TypeElement> annotations,
  51                            RoundEnvironment roundEnv) {
  52         if (!roundEnv.processingOver()) {
  53             executed = true;
  54             // Processing just this type
  55             Element e = elements.getTypeElement("Plurality");
  56             Class[] classes = null;
  57 
  58             P0 p0 = e.getAnnotation(P0.class);
  59             try {
  60                 classes = p0.value();
  61             } catch (MirroredTypesException mtse) {
  62                 if (mtse instanceof MirroredTypeException) {
  63                     throw new RuntimeException("Wrong exception type!");
  64                 }
  65 
  66                 List<? extends TypeMirror> types = mtse.getTypeMirrors();
  67                 if (types.size() != 0)
  68                     throw new RuntimeException("List size != 0: " +
  69                                                types);
  70             }
  71 
  72             P1 p1 = e.getAnnotation(P1.class);
  73             try {
  74                 classes = p1.value();
  75             } catch (MirroredTypesException mtse) {
  76                 if (mtse instanceof MirroredTypeException) {
  77                     throw new RuntimeException("Wrong exception type!");
  78                 }
  79 
  80                 List<? extends TypeMirror> types = mtse.getTypeMirrors();
  81                 if (types.size() != 1)
  82                     throw new RuntimeException("List size != 1: " +
  83                                                types);
  84                 checkTypeListMatchesClasses(types,
  85                                             this.getClass().getAnnotation(P1.class).value());
  86             }
  87 
  88 
  89             P2 p2 = e.getAnnotation(P2.class);
  90             try {
  91                 classes = p2.value();
  92             } catch(MirroredTypesException mtse) {
  93                 if (mtse instanceof MirroredTypeException) {
  94                     throw new RuntimeException("Wrong exception type!");
  95                 }
  96 
  97                 List<? extends TypeMirror> types = mtse.getTypeMirrors();
  98                 if (types.size() != 2)
  99                     throw new RuntimeException("List size != 2: " +
 100                                                types);
 101                 checkTypeListMatchesClasses(types,
 102                                             this.getClass().getAnnotation(P2.class).value());
 103             }
 104 
 105             Class<?> clazz = null;
 106             S1 s1 = e.getAnnotation(S1.class);
 107             try {
 108                 clazz = s1.value();
 109             } catch(MirroredTypesException mtse) {
 110                 List<? extends TypeMirror> types = mtse.getTypeMirrors();
 111                 if (types.size() != 1)
 112                     throw new RuntimeException("List size != 1: " +
 113                                                types);
 114                 Class<?>[] clazzes = new Class<?>[1];
 115                 clazzes[0] = this.getClass().getAnnotation(S1.class).value();
 116                 checkTypeListMatchesClasses(types,
 117                                             clazzes);
 118             }
 119 
 120             try {
 121                 clazz = s1.value();
 122             } catch(MirroredTypeException mte) {
 123                 TypeMirror type = mte.getTypeMirror();
 124                 if (type == null) {
 125                     throw new RuntimeException("Expected null");
 126                 }
 127                 List<TypeMirror> types = new ArrayList<>();
 128                 types.add(type);
 129                 Class<?>[] clazzes = new Class<?>[1];
 130                 clazzes[0] = this.getClass().getAnnotation(S1.class).value();
 131                 checkTypeListMatchesClasses(types, clazzes);
 132             }
 133         } else {
 134             if (!executed) {
 135                 throw new RuntimeException("Didn't seem to do anything!");
 136             }
 137         }
 138         return true;
 139     }
 140 
 141     private static void checkTypeListMatchesClasses(List<? extends TypeMirror> types,
 142                                                Class<?>[] classes) {
 143         if (types.size() != classes.length)
 144             throw new RuntimeException("Size mismatch:\n\t" + types +
 145                                        "\n\t" + Arrays.toString(classes));
 146         int i = -1;
 147         for(Class<?> clazz : classes) {
 148             i++;
 149             String canonicalName = clazz.getCanonicalName();
 150             String toStringName = types.get(i).toString();
 151             if (!canonicalName.equals(toStringName))
 152                 throw new RuntimeException("Mismatched names: " +
 153                                            canonicalName + "\t" +
 154                                            toStringName);
 155         }
 156     }
 157 }
 158 
 159 @Retention(RetentionPolicy.RUNTIME)
 160 @interface P0 {
 161     Class[] value() default {};
 162 }
 163 
 164 @Retention(RetentionPolicy.RUNTIME)
 165 @interface P1 {
 166     Class[] value() default {Integer.class};
 167 }
 168 
 169 @Retention(RetentionPolicy.RUNTIME)
 170 @interface P2 {
 171     Class[] value() default {String.class, Number.class};
 172 }
 173 
 174 @Retention(RetentionPolicy.RUNTIME)
 175 @interface S1 {
 176     Class value() default BigDecimal.class;
 177 }