8011027: Type parameter annotations not passed through to javax.lang.model

Mon, 22 Apr 2013 10:24:19 +0200

author
jfranck
date
Mon, 22 Apr 2013 10:24:19 +0200
changeset 1709
bae8387d16aa
parent 1708
d59730bd3162
child 1710
da0bd69335d4
child 1827
4d4818b6df72

8011027: Type parameter annotations not passed through to javax.lang.model
Reviewed-by: jjg, darcy

src/share/classes/com/sun/tools/javac/code/Symbol.java file | annotate | diff | comparison | revisions
src/share/classes/com/sun/tools/javac/code/TypeAnnotations.java file | annotate | diff | comparison | revisions
src/share/classes/com/sun/tools/javac/model/JavacAnnoConstructs.java file | annotate | diff | comparison | revisions
src/share/classes/com/sun/tools/javac/model/JavacElements.java file | annotate | diff | comparison | revisions
test/tools/javac/processing/model/element/TestTypeParameterAnnotations.java file | annotate | diff | comparison | revisions
     1.1 --- a/src/share/classes/com/sun/tools/javac/code/Symbol.java	Fri Apr 19 11:10:40 2013 -0700
     1.2 +++ b/src/share/classes/com/sun/tools/javac/code/Symbol.java	Mon Apr 22 10:24:19 2013 +0200
     1.3 @@ -465,19 +465,12 @@
     1.4       * This is the implementation for {@code
     1.5       * javax.lang.model.element.Element.getAnnotationMirrors()}.
     1.6       */
     1.7 -    public final List<? extends AnnotationMirror> getAnnotationMirrors() {
     1.8 +    @Override
     1.9 +    public List<Attribute.Compound> getAnnotationMirrors() {
    1.10          return getRawAttributes();
    1.11      }
    1.12  
    1.13      /**
    1.14 -     * TODO: Should there be a {@code
    1.15 -     * javax.lang.model.element.Element.getTypeAnnotationMirrors()}.
    1.16 -     */
    1.17 -    public final List<Attribute.TypeCompound> getTypeAnnotationMirrors() {
    1.18 -        return getRawTypeAttributes();
    1.19 -    }
    1.20 -
    1.21 -    /**
    1.22       * @deprecated this method should never be used by javac internally.
    1.23       */
    1.24      @Deprecated
    1.25 @@ -657,6 +650,24 @@
    1.26          }
    1.27  
    1.28          @Override
    1.29 +        public List<Attribute.Compound> getAnnotationMirrors() {
    1.30 +            return onlyTypeVariableAnnotations(owner.getRawTypeAttributes());
    1.31 +        }
    1.32 +
    1.33 +        private List<Attribute.Compound> onlyTypeVariableAnnotations(
    1.34 +                List<Attribute.TypeCompound> candidates) {
    1.35 +            // Declaration annotations on TypeParameters are stored in type attributes
    1.36 +            List<Attribute.Compound> res = List.nil();
    1.37 +            for (Attribute.TypeCompound a : candidates) {
    1.38 +                if (a.position.type == TargetType.CLASS_TYPE_PARAMETER ||
    1.39 +                    a.position.type == TargetType.METHOD_TYPE_PARAMETER)
    1.40 +                    res = res.prepend(a);
    1.41 +            }
    1.42 +
    1.43 +            return res = res.reverse();
    1.44 +        }
    1.45 +
    1.46 +        @Override
    1.47          public <R, P> R accept(ElementVisitor<R, P> v, P p) {
    1.48              return v.visitTypeParameter(this, p);
    1.49          }
     2.1 --- a/src/share/classes/com/sun/tools/javac/code/TypeAnnotations.java	Fri Apr 19 11:10:40 2013 -0700
     2.2 +++ b/src/share/classes/com/sun/tools/javac/code/TypeAnnotations.java	Mon Apr 22 10:24:19 2013 +0200
     2.3 @@ -206,7 +206,7 @@
     2.4                      sym.getKind() == ElementKind.EXCEPTION_PARAMETER) {
     2.5                  // Make sure all type annotations from the symbol are also
     2.6                  // on the owner.
     2.7 -                sym.owner.annotations.appendUniqueTypes(sym.getTypeAnnotationMirrors());
     2.8 +                sym.owner.annotations.appendUniqueTypes(sym.getRawTypeAttributes());
     2.9              }
    2.10          }
    2.11  
     3.1 --- a/src/share/classes/com/sun/tools/javac/model/JavacAnnoConstructs.java	Fri Apr 19 11:10:40 2013 -0700
     3.2 +++ b/src/share/classes/com/sun/tools/javac/model/JavacAnnoConstructs.java	Mon Apr 22 10:24:19 2013 +0200
     3.3 @@ -33,10 +33,13 @@
     3.4  import com.sun.tools.javac.code.Kinds;
     3.5  import com.sun.tools.javac.code.Symbol;
     3.6  import com.sun.tools.javac.code.Symbol.ClassSymbol;
     3.7 +import com.sun.tools.javac.code.Symbol.TypeVariableSymbol;
     3.8 +import com.sun.tools.javac.code.TargetType;
     3.9  import com.sun.tools.javac.code.Type;
    3.10  import com.sun.tools.javac.code.Type.AnnotatedType;
    3.11  import com.sun.tools.javac.util.ListBuffer;
    3.12  import static com.sun.tools.javac.code.TypeTag.CLASS;
    3.13 +import com.sun.tools.javac.util.List;
    3.14  
    3.15  /**
    3.16   * Utility methods for operating on annotated constructs.
    3.17 @@ -61,8 +64,12 @@
    3.18              throw new IllegalArgumentException("Not an annotation type: "
    3.19                                                 + annoType);
    3.20          Attribute.Compound c;
    3.21 -        if (annotated.kind == Kinds.TYP && annotated instanceof ClassSymbol) {
    3.22 +        if (annotated.kind == Kinds.TYP &&
    3.23 +                annotated instanceof ClassSymbol) {
    3.24              c = getAttributeOnClass((ClassSymbol)annotated, annoType);
    3.25 +        } else if (annotated.kind == Kinds.TYP &&
    3.26 +                   annotated instanceof TypeVariableSymbol) {
    3.27 +            c = getAttributeOnTypeVariable((TypeVariableSymbol)annotated, annoType);
    3.28          } else {
    3.29              c = getAttribute(annotated, annoType);
    3.30          }
    3.31 @@ -83,6 +90,24 @@
    3.32      }
    3.33  
    3.34      // Helper to getAnnotation[s]
    3.35 +    private static <A extends Annotation> Attribute.Compound
    3.36 +            getAttributeOnTypeVariable(TypeVariableSymbol annotated, Class<A> annoType) {
    3.37 +        String name = annoType.getName();
    3.38 +
    3.39 +        // Declaration annotations on type variables are stored in type attributes
    3.40 +        // on the owner of the TypeVariableSymbol
    3.41 +        List<Attribute.Compound> res = List.nil();
    3.42 +        List<Attribute.TypeCompound> candidates = annotated.owner.getRawTypeAttributes();
    3.43 +        for (Attribute.TypeCompound anno : candidates)
    3.44 +            if (anno.position.type == TargetType.CLASS_TYPE_PARAMETER ||
    3.45 +                    anno.position.type == TargetType.METHOD_TYPE_PARAMETER)
    3.46 +                if (name.equals(anno.type.tsym.flatName().toString()))
    3.47 +                    return anno;
    3.48 +
    3.49 +        return null;
    3.50 +    }
    3.51 +
    3.52 +    // Helper to getAnnotation[s]
    3.53      private static <A extends Annotation> Attribute.Compound getAttributeOnClass(ClassSymbol annotated,
    3.54                                                                  Class<A> annoType) {
    3.55          boolean inherited = annoType.isAnnotationPresent(Inherited.class);
     4.1 --- a/src/share/classes/com/sun/tools/javac/model/JavacElements.java	Fri Apr 19 11:10:40 2013 -0700
     4.2 +++ b/src/share/classes/com/sun/tools/javac/model/JavacElements.java	Mon Apr 22 10:24:19 2013 +0200
     4.3 @@ -402,9 +402,10 @@
     4.4       * @param e  the element being examined
     4.5       * @return all annotations of the element
     4.6       */
     4.7 +    @Override
     4.8      public List<Attribute.Compound> getAllAnnotationMirrors(Element e) {
     4.9          Symbol sym = cast(Symbol.class, e);
    4.10 -        List<Attribute.Compound> annos = sym.getRawAttributes();
    4.11 +        List<Attribute.Compound> annos = sym.getAnnotationMirrors();
    4.12          while (sym.getKind() == ElementKind.CLASS) {
    4.13              Type sup = ((ClassSymbol) sym).getSuperclass();
    4.14              if (!sup.hasTag(CLASS) || sup.isErroneous() ||
    4.15 @@ -413,7 +414,7 @@
    4.16              }
    4.17              sym = sup.tsym;
    4.18              List<Attribute.Compound> oldAnnos = annos;
    4.19 -            List<Attribute.Compound> newAnnos = sym.getRawAttributes();
    4.20 +            List<Attribute.Compound> newAnnos = sym.getAnnotationMirrors();
    4.21              for (Attribute.Compound anno : newAnnos) {
    4.22                  if (isInherited(anno.type) &&
    4.23                          !containsAnnoOfType(oldAnnos, anno.type)) {
     5.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.2 +++ b/test/tools/javac/processing/model/element/TestTypeParameterAnnotations.java	Mon Apr 22 10:24:19 2013 +0200
     5.3 @@ -0,0 +1,190 @@
     5.4 +/*
     5.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     5.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     5.7 + *
     5.8 + * This code is free software; you can redistribute it and/or modify it
     5.9 + * under the terms of the GNU General Public License version 2 only, as
    5.10 + * published by the Free Software Foundation.
    5.11 + *
    5.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    5.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    5.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    5.15 + * version 2 for more details (a copy is included in the LICENSE file that
    5.16 + * accompanied this code).
    5.17 + *
    5.18 + * You should have received a copy of the GNU General Public License version
    5.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    5.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    5.21 + *
    5.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    5.23 + * or visit www.oracle.com if you need additional information or have any
    5.24 + * questions.
    5.25 + */
    5.26 +
    5.27 +/*
    5.28 + * @test
    5.29 + * @bug 8011027
    5.30 + * @library /tools/javac/lib
    5.31 + * @build JavacTestingAbstractProcessor TestTypeParameterAnnotations
    5.32 + * @compile -processor TestTypeParameterAnnotations -proc:only TestTypeParameterAnnotations.java
    5.33 + */
    5.34 +
    5.35 +import java.util.*;
    5.36 +import java.lang.annotation.*;
    5.37 +import javax.annotation.processing.*;
    5.38 +import javax.lang.model.element.*;
    5.39 +import javax.lang.model.util.*;
    5.40 +import javax.tools.*;
    5.41 +
    5.42 +public class TestTypeParameterAnnotations<@Foo @Bar @Baz T> extends JavacTestingAbstractProcessor {
    5.43 +    int round = 0;
    5.44 +
    5.45 +    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
    5.46 +        if (++round == 1) {
    5.47 +            int found = (new Scanner()).scan(roundEnv.getRootElements(), null);
    5.48 +            if (found == expect) {
    5.49 +                ; //nop
    5.50 +            } else {
    5.51 +                error("unexpected number of results: expected " + expect
    5.52 +                        + ", found " + found);
    5.53 +            }
    5.54 +
    5.55 +        }
    5.56 +        return true;
    5.57 +    }
    5.58 +
    5.59 +    class Scanner extends JavacTestingAbstractProcessor.ElementScanner<Integer,Void> {
    5.60 +        @Override
    5.61 +        public Integer visitExecutable(ExecutableElement e, Void p) {
    5.62 +            super.visitExecutable(e, p);
    5.63 +            found += check(e, e.getTypeParameters());
    5.64 +            return found;
    5.65 +        }
    5.66 +
    5.67 +        @Override
    5.68 +        public Integer visitType(TypeElement e, Void p) {
    5.69 +            super.visitType(e, p);
    5.70 +            found += check(e, e.getTypeParameters());
    5.71 +            return found;
    5.72 +        }
    5.73 +
    5.74 +        int found;
    5.75 +    }
    5.76 +
    5.77 +    int check(Element e, List<? extends TypeParameterElement> typarams) {
    5.78 +        if (typarams.isEmpty())
    5.79 +            return 0;
    5.80 +        if (typarams.size() != 1)
    5.81 +            return 0;
    5.82 +
    5.83 +        for (TypeParameterElement tpe: typarams) {
    5.84 +            boolean b1 = checkAnnotationMirrors(tpe, tpe.getAnnotationMirrors());
    5.85 +            boolean b2 = checkAnnotationMirrors(tpe, elements.getAllAnnotationMirrors(tpe));
    5.86 +            boolean b3 = checkGetAnnotation(tpe);
    5.87 +            boolean b4 = checkGetAnnotations(tpe);
    5.88 +            return b1 && b2 && b3 && b4 ? 1 : 0;
    5.89 +        }
    5.90 +        return 0;
    5.91 +    }
    5.92 +
    5.93 +    boolean checkAnnotationMirrors(TypeParameterElement tpe, List<? extends AnnotationMirror> l) {
    5.94 +        if (l.size() != 3) {
    5.95 +            error("To few annotations, got " + l.size() +
    5.96 +                    ", should be 3", tpe);
    5.97 +            return false;
    5.98 +        }
    5.99 +
   5.100 +        AnnotationMirror m = l.get(0);
   5.101 +        if (!m.getAnnotationType().asElement().equals(elements.getTypeElement("Foo"))) {
   5.102 +            error("Wrong type of annotation, was expecting @Foo", m.getAnnotationType().asElement());
   5.103 +            return false;
   5.104 +        }
   5.105 +        m = l.get(1);
   5.106 +        if (!m.getAnnotationType().asElement().equals(elements.getTypeElement("Bar"))) {
   5.107 +            error("Wrong type of annotation, was expecting @Bar", m.getAnnotationType().asElement());
   5.108 +            return false;
   5.109 +        }
   5.110 +        m = l.get(2);
   5.111 +        if (!m.getAnnotationType().asElement().equals(elements.getTypeElement("Baz"))) {
   5.112 +            error("Wrong type of annotation, was expecting @Baz", m.getAnnotationType().asElement());
   5.113 +            return false;
   5.114 +        }
   5.115 +        return true;
   5.116 +    }
   5.117 +
   5.118 +    boolean checkGetAnnotation(TypeParameterElement tpe) {
   5.119 +        Foo f = tpe.getAnnotation(Foo.class);
   5.120 +        if (f == null)
   5.121 +            error("Expecting @Foo to be present in getAnnotation()", tpe);
   5.122 +
   5.123 +        Bar b = tpe.getAnnotation(Bar.class);
   5.124 +        if (b == null)
   5.125 +            error("Expecting @Bar to be present in getAnnotation()", tpe);
   5.126 +
   5.127 +        Baz z = tpe.getAnnotation(Baz.class);
   5.128 +        if (z == null)
   5.129 +            error("Expecting @Baz to be present in getAnnotation()", tpe);
   5.130 +
   5.131 +        return f != null &&
   5.132 +            b != null &&
   5.133 +            z != null;
   5.134 +    }
   5.135 +
   5.136 +    boolean checkGetAnnotations(TypeParameterElement tpe) {
   5.137 +        Foo[] f = tpe.getAnnotationsByType(Foo.class);
   5.138 +        if (f.length != 1) {
   5.139 +            error("Expecting 1 @Foo to be present in getAnnotationsByType()", tpe);
   5.140 +            return false;
   5.141 +        }
   5.142 +
   5.143 +        Bar[] b = tpe.getAnnotationsByType(Bar.class);
   5.144 +        if (b.length != 1) {
   5.145 +            error("Expecting 1 @Bar to be present in getAnnotationsByType()", tpe);
   5.146 +            return false;
   5.147 +        }
   5.148 +
   5.149 +        Baz[] z = tpe.getAnnotationsByType(Baz.class);
   5.150 +        if (z.length != 1) {
   5.151 +            error("Expecting 1 @Baz to be present in getAnnotationsByType()", tpe);
   5.152 +            return false;
   5.153 +        }
   5.154 +
   5.155 +        return true;
   5.156 +    }
   5.157 +
   5.158 +    void note(String msg) {
   5.159 +        messager.printMessage(Diagnostic.Kind.NOTE, msg);
   5.160 +    }
   5.161 +
   5.162 +    void note(String msg, Element e) {
   5.163 +        messager.printMessage(Diagnostic.Kind.NOTE, msg, e);
   5.164 +    }
   5.165 +
   5.166 +    void error(String msg, Element e) {
   5.167 +        messager.printMessage(Diagnostic.Kind.ERROR, msg, e);
   5.168 +    }
   5.169 +
   5.170 +    void error(String msg) {
   5.171 +        messager.printMessage(Diagnostic.Kind.ERROR, msg);
   5.172 +    }
   5.173 +
   5.174 +    // additional generic elements to test
   5.175 +    <@Foo @Bar @Baz X> X m(X x) { return x; }
   5.176 +
   5.177 +    interface Intf<@Foo @Bar @Baz X> { X m() ; }
   5.178 +
   5.179 +    class Class<@Foo @Bar @Baz X> {
   5.180 +        <@Foo @Bar @Baz Y> Class() { }
   5.181 +    }
   5.182 +
   5.183 +    final int expect = 5;  // top level class, plus preceding examples
   5.184 +}
   5.185 +
   5.186 +@Target(ElementType.TYPE_PARAMETER)
   5.187 +@interface Foo {}
   5.188 +
   5.189 +@Target(ElementType.TYPE_PARAMETER)
   5.190 +@interface Bar {}
   5.191 +
   5.192 +@Target(ElementType.TYPE_PARAMETER)
   5.193 +@interface Baz {}

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