jdk8-mips64-public/hotspot: src/share/vm/oops/annotations.hpp@825e6cb66923

8020309: Eliminate InstanceKlass::_cached_class_file_len.
Summary: Use JvmtiCachedClassFileData.
Reviewed-by: iklam, sspitsyn, dcubed

     1 /*

     2  * Copyright (c) 2012, 2013, 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  */

    25 #ifndef SHARE_VM_OOPS_ANNOTATIONS_HPP

    26 #define SHARE_VM_OOPS_ANNOTATIONS_HPP

    28 #include "oops/metadata.hpp"

    29 #include "runtime/handles.hpp"

    30 #include "utilities/array.hpp"

    31 #include "utilities/exceptions.hpp"

    32 #include "utilities/globalDefinitions.hpp"

    35 class ClassLoaderData;

    36 class outputStream;

    37 class KlassSizeStats;

    39 typedef Array<u1> AnnotationArray;

    41 // Class to hold the various types of annotations. The only metadata that points

    42 // to this is InstanceKlass, or another Annotations instance if this is a

    43 // a type_annotation instance.

    45 class Annotations: public MetaspaceObj {

    47   // Annotations for this class, or null if none.

    48   AnnotationArray*             _class_annotations;

    49   // Annotation objects (byte arrays) for fields, or null if no annotations.

    50   // Indices correspond to entries (not indices) in fields array.

    51   Array<AnnotationArray*>*     _fields_annotations;

    52   // Type annotations for this class, or null if none.

    53   AnnotationArray*             _class_type_annotations;

    54   Array<AnnotationArray*>*     _fields_type_annotations;

    56  public:

    57   // Allocate instance of this class

    58   static Annotations* allocate(ClassLoaderData* loader_data, TRAPS);

    60   static void free_contents(ClassLoaderData* loader_data, Array<AnnotationArray*>* p);

    61   void deallocate_contents(ClassLoaderData* loader_data);

    62   DEBUG_ONLY(bool on_stack() { return false; })  // for template

    64   // Sizing (in words)

    65   static int size()    { return sizeof(Annotations) / wordSize; }

    66 #if INCLUDE_SERVICES

    67   void collect_statistics(KlassSizeStats *sz) const;

    68 #endif

    70   // Constructor to initialize to null

    71   Annotations() : _class_annotations(NULL),

    72                   _fields_annotations(NULL),

    73                   _class_type_annotations(NULL),

    74                   _fields_type_annotations(NULL) {}

    76   AnnotationArray* class_annotations() const                       { return _class_annotations; }

    77   Array<AnnotationArray*>* fields_annotations() const              { return _fields_annotations; }

    78   AnnotationArray* class_type_annotations() const                  { return _class_type_annotations; }

    79   Array<AnnotationArray*>* fields_type_annotations() const         { return _fields_type_annotations; }

    81   void set_class_annotations(AnnotationArray* md)                     { _class_annotations = md; }

    82   void set_fields_annotations(Array<AnnotationArray*>* md)            { _fields_annotations = md; }

    83   void set_class_type_annotations(AnnotationArray* cta)               { _class_type_annotations = cta; }

    84   void set_fields_type_annotations(Array<AnnotationArray*>* fta)      { _fields_type_annotations = fta; }

    86   // Turn metadata annotations into a Java heap object (oop)

    87   static typeArrayOop make_java_array(AnnotationArray* annotations, TRAPS);

    89   bool is_klass() const { return false; }

    90  private:

    91   static julong count_bytes(Array<AnnotationArray*>* p);

    92  public:

    93   const char* internal_name() const { return "{constant pool}"; }

    94 #ifndef PRODUCT

    95   void print_on(outputStream* st) const;

    96 #endif

    97   void print_value_on(outputStream* st) const;

    98 };

    99 #endif // SHARE_VM_OOPS_ANNOTATIONS_HPP

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