Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/fieldDescriptor.hpp @ 3865:9f12ede5571a
Merge
author | jcoomes |
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date | Fri, 19 Aug 2011 14:08:18 -0700 |
parents | 1d1603768966 |
children | ff6a991c6e3c e6b1331a51d2 |
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; | |
43 int _name_index; | |
44 int _signature_index; | |
45 int _initial_value_index; | |
46 int _offset; | |
47 int _generic_signature_index; | |
48 int _index; // index into fields() array | |
49 constantPoolHandle _cp; | |
50 | |
51 public: | |
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52 Symbol* name() const { return _cp->symbol_at(_name_index); } |
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53 Symbol* signature() const { return _cp->symbol_at(_signature_index); } |
0 | 54 klassOop field_holder() const { return _cp->pool_holder(); } |
55 constantPoolOop constants() const { return _cp(); } | |
56 AccessFlags access_flags() const { return _access_flags; } | |
57 oop loader() const; | |
58 // Offset (in words) of field from start of instanceOop / klassOop | |
59 int offset() const { return _offset; } | |
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60 Symbol* generic_signature() const { return (_generic_signature_index > 0 ? _cp->symbol_at(_generic_signature_index) : (Symbol*)NULL); } |
0 | 61 int index() const { return _index; } |
62 typeArrayOop annotations() const; | |
63 | |
64 // Initial field value | |
65 bool has_initial_value() const { return _initial_value_index != 0; } | |
66 constantTag initial_value_tag() const; // The tag will return true on one of is_int(), is_long(), is_single(), is_double() | |
67 jint int_initial_value() const; | |
68 jlong long_initial_value() const; | |
69 jfloat float_initial_value() const; | |
70 jdouble double_initial_value() const; | |
71 oop string_initial_value(TRAPS) const; | |
72 | |
73 // Field signature type | |
74 BasicType field_type() const { return FieldType::basic_type(signature()); } | |
75 | |
76 // Access flags | |
77 bool is_public() const { return _access_flags.is_public(); } | |
78 bool is_private() const { return _access_flags.is_private(); } | |
79 bool is_protected() const { return _access_flags.is_protected(); } | |
80 bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); } | |
81 | |
82 bool is_static() const { return _access_flags.is_static(); } | |
83 bool is_final() const { return _access_flags.is_final(); } | |
84 bool is_volatile() const { return _access_flags.is_volatile(); } | |
85 bool is_transient() const { return _access_flags.is_transient(); } | |
86 | |
87 bool is_synthetic() const { return _access_flags.is_synthetic(); } | |
88 | |
89 bool is_field_access_watched() const { return _access_flags.is_field_access_watched(); } | |
90 bool is_field_modification_watched() const | |
91 { return _access_flags.is_field_modification_watched(); } | |
92 void set_is_field_access_watched(const bool value) | |
93 { _access_flags.set_is_field_access_watched(value); } | |
94 void set_is_field_modification_watched(const bool value) | |
95 { _access_flags.set_is_field_modification_watched(value); } | |
96 | |
97 // Initialization | |
98 void initialize(klassOop k, int index); | |
99 | |
100 // Print | |
101 void print_on(outputStream* st) const PRODUCT_RETURN; | |
102 void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN; | |
103 }; | |
1972 | 104 |
105 #endif // SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP |