1 /*
2 * Copyright (c) 1997, 2012, 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 *
36 // rather than the actual info).
37
38 class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
39 private:
40 AccessFlags _access_flags;
41 int _index; // the field index
42 constantPoolHandle _cp;
43
44 // update the access_flags for the field in the klass
45 void update_klass_field_access_flag() {
46 InstanceKlass* ik = field_holder();
47 ik->field(index())->set_access_flags(_access_flags.as_short());
48 }
49
50 FieldInfo* field() const {
51 InstanceKlass* ik = field_holder();
52 return ik->field(_index);
53 }
54
55 public:
56 Symbol* name() const {
57 return field()->name(_cp);
58 }
59 Symbol* signature() const {
60 return field()->signature(_cp);
61 }
62 InstanceKlass* field_holder() const { return _cp->pool_holder(); }
63 ConstantPool* constants() const { return _cp(); }
64 AccessFlags access_flags() const { return _access_flags; }
65 oop loader() const;
66 // Offset (in words) of field from start of instanceOop / Klass*
67 int offset() const { return field()->offset(); }
68 Symbol* generic_signature() const;
69 int index() const { return _index; }
70 AnnotationArray* annotations() const;
71 AnnotationArray* type_annotations() const;
72
73 // Initial field value
74 bool has_initial_value() const { return field()->initval_index() != 0; }
75 int initial_value_index() const { return field()->initval_index(); }
95 bool is_transient() const { return access_flags().is_transient(); }
96
97 bool is_synthetic() const { return access_flags().is_synthetic(); }
98
99 bool is_field_access_watched() const { return access_flags().is_field_access_watched(); }
100 bool is_field_modification_watched() const
101 { return access_flags().is_field_modification_watched(); }
102 bool has_generic_signature() const { return access_flags().field_has_generic_signature(); }
103
104 void set_is_field_access_watched(const bool value) {
105 _access_flags.set_is_field_access_watched(value);
106 update_klass_field_access_flag();
107 }
108
109 void set_is_field_modification_watched(const bool value) {
110 _access_flags.set_is_field_modification_watched(value);
111 update_klass_field_access_flag();
112 }
113
114 // Initialization
115 void initialize(InstanceKlass* ik, int index);
116
117 // Print
118 void print() { print_on(tty); }
119 void print_on(outputStream* st) const PRODUCT_RETURN;
120 void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN;
121 };
122
123 #endif // SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP
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1 /*
2 * Copyright (c) 1997, 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 *
36 // rather than the actual info).
37
38 class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
39 private:
40 AccessFlags _access_flags;
41 int _index; // the field index
42 constantPoolHandle _cp;
43
44 // update the access_flags for the field in the klass
45 void update_klass_field_access_flag() {
46 InstanceKlass* ik = field_holder();
47 ik->field(index())->set_access_flags(_access_flags.as_short());
48 }
49
50 FieldInfo* field() const {
51 InstanceKlass* ik = field_holder();
52 return ik->field(_index);
53 }
54
55 public:
56 fieldDescriptor() {
57 DEBUG_ONLY(_index = badInt);
58 }
59 fieldDescriptor(InstanceKlass* ik, int index) {
60 DEBUG_ONLY(_index = badInt);
61 reinitialize(ik, index);
62 }
63 Symbol* name() const {
64 return field()->name(_cp);
65 }
66 Symbol* signature() const {
67 return field()->signature(_cp);
68 }
69 InstanceKlass* field_holder() const { return _cp->pool_holder(); }
70 ConstantPool* constants() const { return _cp(); }
71 AccessFlags access_flags() const { return _access_flags; }
72 oop loader() const;
73 // Offset (in words) of field from start of instanceOop / Klass*
74 int offset() const { return field()->offset(); }
75 Symbol* generic_signature() const;
76 int index() const { return _index; }
77 AnnotationArray* annotations() const;
78 AnnotationArray* type_annotations() const;
79
80 // Initial field value
81 bool has_initial_value() const { return field()->initval_index() != 0; }
82 int initial_value_index() const { return field()->initval_index(); }
102 bool is_transient() const { return access_flags().is_transient(); }
103
104 bool is_synthetic() const { return access_flags().is_synthetic(); }
105
106 bool is_field_access_watched() const { return access_flags().is_field_access_watched(); }
107 bool is_field_modification_watched() const
108 { return access_flags().is_field_modification_watched(); }
109 bool has_generic_signature() const { return access_flags().field_has_generic_signature(); }
110
111 void set_is_field_access_watched(const bool value) {
112 _access_flags.set_is_field_access_watched(value);
113 update_klass_field_access_flag();
114 }
115
116 void set_is_field_modification_watched(const bool value) {
117 _access_flags.set_is_field_modification_watched(value);
118 update_klass_field_access_flag();
119 }
120
121 // Initialization
122 void reinitialize(InstanceKlass* ik, int index);
123
124 // Print
125 void print() { print_on(tty); }
126 void print_on(outputStream* st) const PRODUCT_RETURN;
127 void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN;
128 void verify() const PRODUCT_RETURN;
129 };
130
131 #endif // SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP
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