Mercurial > hg > truffle
annotate src/share/vm/runtime/fieldDescriptor.hpp @ 6294:b0fc02623974
exclude TestPrograms from JaCoCo processing
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 28 Aug 2012 13:55:11 +0200 |
parents | 957c266d8bc5 |
children | e522a00b91aa |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP |
26 #define SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP | |
27 | |
28 #include "oops/constantPoolOop.hpp" | |
29 #include "oops/klassOop.hpp" | |
30 #include "oops/oop.inline.hpp" | |
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31 #include "oops/symbol.hpp" |
1972 | 32 #include "runtime/fieldType.hpp" |
33 #include "utilities/accessFlags.hpp" | |
34 #include "utilities/constantTag.hpp" | |
35 | |
0 | 36 // A fieldDescriptor describes the attributes of a single field (instance or class variable). |
37 // It needs the class constant pool to work (because it only holds indices into the pool | |
38 // rather than the actual info). | |
39 | |
40 class fieldDescriptor VALUE_OBJ_CLASS_SPEC { | |
41 private: | |
42 AccessFlags _access_flags; | |
3938 | 43 int _index; // the field index |
0 | 44 constantPoolHandle _cp; |
45 | |
3938 | 46 // update the access_flags for the field in the klass |
47 void update_klass_field_access_flag() { | |
48 instanceKlass* ik = instanceKlass::cast(field_holder()); | |
49 ik->field(index())->set_access_flags(_access_flags.as_short()); | |
50 } | |
51 | |
52 FieldInfo* field() const { | |
53 instanceKlass* ik = instanceKlass::cast(field_holder()); | |
54 return ik->field(_index); | |
55 } | |
56 | |
0 | 57 public: |
3938 | 58 Symbol* name() const { |
59 return field()->name(_cp); | |
60 } | |
61 Symbol* signature() const { | |
62 return field()->signature(_cp); | |
63 } | |
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64 int signature_index() const { return field()->signature_index(); } |
0 | 65 klassOop field_holder() const { return _cp->pool_holder(); } |
66 constantPoolOop constants() const { return _cp(); } | |
67 AccessFlags access_flags() const { return _access_flags; } | |
68 oop loader() const; | |
69 // Offset (in words) of field from start of instanceOop / klassOop | |
3938 | 70 int offset() const { return field()->offset(); } |
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71 Symbol* generic_signature() const; |
0 | 72 int index() const { return _index; } |
73 typeArrayOop annotations() const; | |
74 | |
75 // Initial field value | |
3938 | 76 bool has_initial_value() const { return field()->initval_index() != 0; } |
77 int initial_value_index() const { return field()->initval_index(); } | |
0 | 78 constantTag initial_value_tag() const; // The tag will return true on one of is_int(), is_long(), is_single(), is_double() |
79 jint int_initial_value() const; | |
80 jlong long_initial_value() const; | |
81 jfloat float_initial_value() const; | |
82 jdouble double_initial_value() const; | |
83 oop string_initial_value(TRAPS) const; | |
84 | |
85 // Field signature type | |
86 BasicType field_type() const { return FieldType::basic_type(signature()); } | |
87 | |
88 // Access flags | |
3938 | 89 bool is_public() const { return access_flags().is_public(); } |
90 bool is_private() const { return access_flags().is_private(); } | |
91 bool is_protected() const { return access_flags().is_protected(); } | |
0 | 92 bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); } |
93 | |
3938 | 94 bool is_static() const { return access_flags().is_static(); } |
95 bool is_final() const { return access_flags().is_final(); } | |
96 bool is_volatile() const { return access_flags().is_volatile(); } | |
97 bool is_transient() const { return access_flags().is_transient(); } | |
0 | 98 |
3938 | 99 bool is_synthetic() const { return access_flags().is_synthetic(); } |
0 | 100 |
3938 | 101 bool is_field_access_watched() const { return access_flags().is_field_access_watched(); } |
0 | 102 bool is_field_modification_watched() const |
3938 | 103 { return access_flags().is_field_modification_watched(); } |
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104 bool has_generic_signature() const { return access_flags().field_has_generic_signature(); } |
3938 | 105 |
106 void set_is_field_access_watched(const bool value) { | |
107 _access_flags.set_is_field_access_watched(value); | |
108 update_klass_field_access_flag(); | |
109 } | |
110 | |
111 void set_is_field_modification_watched(const bool value) { | |
112 _access_flags.set_is_field_modification_watched(value); | |
113 update_klass_field_access_flag(); | |
114 } | |
0 | 115 |
116 // Initialization | |
117 void initialize(klassOop k, int index); | |
118 | |
119 // Print | |
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120 void print() { print_on(tty); } |
0 | 121 void print_on(outputStream* st) const PRODUCT_RETURN; |
122 void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN; | |
123 }; | |
1972 | 124 |
125 #endif // SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP |