Mercurial > hg > truffle
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 3763:e66f38dd58a9
Merge
author | ysr |
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date | Wed, 08 Jun 2011 08:39:53 -0700 |
parents | f95d63e2154a |
children | e6b1331a51d2 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, 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 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "memory/resourceArea.hpp" | |
29 #include "memory/universe.inline.hpp" | |
30 #include "oops/instanceKlass.hpp" | |
31 #include "runtime/fieldDescriptor.hpp" | |
32 #include "runtime/handles.inline.hpp" | |
33 #include "runtime/signature.hpp" | |
0 | 34 |
35 | |
36 oop fieldDescriptor::loader() const { | |
37 return instanceKlass::cast(_cp->pool_holder())->class_loader(); | |
38 } | |
39 | |
40 typeArrayOop fieldDescriptor::annotations() const { | |
41 instanceKlass* ik = instanceKlass::cast(field_holder()); | |
42 objArrayOop md = ik->fields_annotations(); | |
43 if (md == NULL) | |
44 return NULL; | |
45 assert((index() % instanceKlass::next_offset) == 0, ""); | |
46 return typeArrayOop(md->obj_at(index() / instanceKlass::next_offset)); | |
47 } | |
48 | |
49 constantTag fieldDescriptor::initial_value_tag() const { | |
50 return constants()->tag_at(_initial_value_index); | |
51 } | |
52 | |
53 jint fieldDescriptor::int_initial_value() const { | |
54 return constants()->int_at(_initial_value_index); | |
55 } | |
56 | |
57 jlong fieldDescriptor::long_initial_value() const { | |
58 return constants()->long_at(_initial_value_index); | |
59 } | |
60 | |
61 jfloat fieldDescriptor::float_initial_value() const { | |
62 return constants()->float_at(_initial_value_index); | |
63 } | |
64 | |
65 jdouble fieldDescriptor::double_initial_value() const { | |
66 return constants()->double_at(_initial_value_index); | |
67 } | |
68 | |
69 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
70 return constants()->string_at(_initial_value_index, CHECK_0); | |
71 } | |
72 | |
73 void fieldDescriptor::initialize(klassOop k, int index) { | |
74 instanceKlass* ik = instanceKlass::cast(k); | |
75 _cp = ik->constants(); | |
76 typeArrayOop fields = ik->fields(); | |
77 | |
78 assert(fields->length() % instanceKlass::next_offset == 0, "Illegal size of field array"); | |
79 assert(fields->length() >= index + instanceKlass::next_offset, "Illegal size of field array"); | |
80 | |
81 _access_flags.set_field_flags(fields->ushort_at(index + instanceKlass::access_flags_offset)); | |
82 _name_index = fields->ushort_at(index + instanceKlass::name_index_offset); | |
83 _signature_index = fields->ushort_at(index + instanceKlass::signature_index_offset); | |
84 _initial_value_index = fields->ushort_at(index + instanceKlass::initval_index_offset); | |
85 guarantee(_name_index != 0 && _signature_index != 0, "bad constant pool index for fieldDescriptor"); | |
86 _offset = ik->offset_from_fields( index ); | |
87 _generic_signature_index = fields->ushort_at(index + instanceKlass::generic_signature_offset); | |
88 _index = index; | |
89 } | |
90 | |
91 #ifndef PRODUCT | |
92 | |
93 void fieldDescriptor::print_on(outputStream* st) const { | |
94 _access_flags.print_on(st); | |
95 constants()->symbol_at(_name_index)->print_value_on(st); | |
96 st->print(" "); | |
97 constants()->symbol_at(_signature_index)->print_value_on(st); | |
98 st->print(" @%d ", offset()); | |
99 if (WizardMode && has_initial_value()) { | |
100 st->print("(initval "); | |
101 constantTag t = initial_value_tag(); | |
102 if (t.is_int()) { | |
103 st->print("int %d)", int_initial_value()); | |
104 } else if (t.is_long()){ | |
105 st->print_jlong(long_initial_value()); | |
106 } else if (t.is_float()){ | |
107 st->print("float %f)", float_initial_value()); | |
108 } else if (t.is_double()){ | |
109 st->print("double %lf)", double_initial_value()); | |
110 } | |
111 } | |
112 } | |
113 | |
114 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
115 print_on(st); | |
116 BasicType ft = field_type(); | |
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117 jint as_int = 0; |
0 | 118 switch (ft) { |
119 case T_BYTE: | |
120 as_int = (jint)obj->byte_field(offset()); | |
121 st->print(" %d", obj->byte_field(offset())); | |
122 break; | |
123 case T_CHAR: | |
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124 as_int = (jint)obj->char_field(offset()); |
0 | 125 { |
126 jchar c = obj->char_field(offset()); | |
127 as_int = c; | |
128 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
129 } | |
130 break; | |
131 case T_DOUBLE: | |
132 st->print(" %lf", obj->double_field(offset())); | |
133 break; | |
134 case T_FLOAT: | |
135 as_int = obj->int_field(offset()); | |
136 st->print(" %f", obj->float_field(offset())); | |
137 break; | |
138 case T_INT: | |
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139 as_int = obj->int_field(offset()); |
0 | 140 st->print(" %d", obj->int_field(offset())); |
141 break; | |
142 case T_LONG: | |
143 st->print(" "); | |
144 st->print_jlong(obj->long_field(offset())); | |
145 break; | |
146 case T_SHORT: | |
147 as_int = obj->short_field(offset()); | |
148 st->print(" %d", obj->short_field(offset())); | |
149 break; | |
150 case T_BOOLEAN: | |
151 as_int = obj->bool_field(offset()); | |
152 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
153 break; | |
154 case T_ARRAY: | |
155 st->print(" "); | |
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156 NOT_LP64(as_int = obj->int_field(offset())); |
0 | 157 obj->obj_field(offset())->print_value_on(st); |
158 break; | |
159 case T_OBJECT: | |
160 st->print(" "); | |
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161 NOT_LP64(as_int = obj->int_field(offset())); |
0 | 162 obj->obj_field(offset())->print_value_on(st); |
163 break; | |
164 default: | |
165 ShouldNotReachHere(); | |
166 break; | |
167 } | |
168 // Print a hint as to the underlying integer representation. This can be wrong for | |
169 // pointers on an LP64 machine | |
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170 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
0 | 171 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
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172 } else if (as_int < 0 || as_int > 9) { |
0 | 173 st->print(" (%x)", as_int); |
174 } | |
175 } | |
176 | |
177 #endif /* PRODUCT */ |