Mercurial > hg > truffle
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 12355:cefad50507d8
Merge with hs25-b53
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 11 Oct 2013 10:38:03 +0200 |
parents | 0f7ca53be929 b2e698d2276c |
children | 359f7e70ae7f |
rev | line source |
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0 | 1 /* |
8031 | 2 * Copyright (c) 1997, 2013, 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 "runtime/fieldDescriptor.hpp" | |
31 #include "runtime/handles.inline.hpp" | |
32 #include "runtime/signature.hpp" | |
0 | 33 |
34 | |
35 oop fieldDescriptor::loader() const { | |
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36 return _cp->pool_holder()->class_loader(); |
0 | 37 } |
38 | |
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39 Symbol* fieldDescriptor::generic_signature() const { |
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40 if (!has_generic_signature()) { |
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41 return NULL; |
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42 } |
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43 |
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44 int idx = 0; |
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45 InstanceKlass* ik = field_holder(); |
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46 for (AllFieldStream fs(ik); !fs.done(); fs.next()) { |
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47 if (idx == _index) { |
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48 return fs.generic_signature(); |
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49 } else { |
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50 idx ++; |
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51 } |
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52 } |
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53 assert(false, "should never happen"); |
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54 return NULL; |
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55 } |
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56 |
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57 AnnotationArray* fieldDescriptor::annotations() const { |
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58 InstanceKlass* ik = field_holder(); |
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59 Array<AnnotationArray*>* md = ik->fields_annotations(); |
0 | 60 if (md == NULL) |
61 return NULL; | |
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62 return md->at(index()); |
0 | 63 } |
64 | |
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65 AnnotationArray* fieldDescriptor::type_annotations() const { |
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66 InstanceKlass* ik = field_holder(); |
8031 | 67 Array<AnnotationArray*>* type_annos = ik->fields_type_annotations(); |
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68 if (type_annos == NULL) |
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69 return NULL; |
8031 | 70 return type_annos->at(index()); |
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71 } |
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72 |
0 | 73 constantTag fieldDescriptor::initial_value_tag() const { |
3938 | 74 return constants()->tag_at(initial_value_index()); |
0 | 75 } |
76 | |
77 jint fieldDescriptor::int_initial_value() const { | |
3938 | 78 return constants()->int_at(initial_value_index()); |
0 | 79 } |
80 | |
81 jlong fieldDescriptor::long_initial_value() const { | |
3938 | 82 return constants()->long_at(initial_value_index()); |
0 | 83 } |
84 | |
85 jfloat fieldDescriptor::float_initial_value() const { | |
3938 | 86 return constants()->float_at(initial_value_index()); |
0 | 87 } |
88 | |
89 jdouble fieldDescriptor::double_initial_value() const { | |
3938 | 90 return constants()->double_at(initial_value_index()); |
0 | 91 } |
92 | |
93 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
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94 return constants()->uncached_string_at(initial_value_index(), CHECK_0); |
0 | 95 } |
96 | |
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97 void fieldDescriptor::reinitialize(InstanceKlass* ik, int index) { |
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98 if (_cp.is_null() || field_holder() != ik) { |
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99 _cp = constantPoolHandle(Thread::current(), ik->constants()); |
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100 // _cp should now reference ik's constant pool; i.e., ik is now field_holder. |
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101 assert(field_holder() == ik, "must be already initialized to this class"); |
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102 } |
3938 | 103 FieldInfo* f = ik->field(index); |
104 assert(!f->is_internal(), "regular Java fields only"); | |
0 | 105 |
3938 | 106 _access_flags = accessFlags_from(f->access_flags()); |
107 guarantee(f->name_index() != 0 && f->signature_index() != 0, "bad constant pool index for fieldDescriptor"); | |
0 | 108 _index = index; |
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109 verify(); |
0 | 110 } |
111 | |
112 #ifndef PRODUCT | |
113 | |
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114 void fieldDescriptor::verify() const { |
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115 if (_cp.is_null()) { |
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116 assert(_index == badInt, "constructor must be called"); // see constructor |
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117 } else { |
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118 assert(_index >= 0, "good index"); |
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119 assert(_index < field_holder()->java_fields_count(), "oob"); |
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120 } |
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121 } |
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122 |
0 | 123 void fieldDescriptor::print_on(outputStream* st) const { |
3938 | 124 access_flags().print_on(st); |
125 name()->print_value_on(st); | |
0 | 126 st->print(" "); |
3938 | 127 signature()->print_value_on(st); |
0 | 128 st->print(" @%d ", offset()); |
129 if (WizardMode && has_initial_value()) { | |
130 st->print("(initval "); | |
131 constantTag t = initial_value_tag(); | |
132 if (t.is_int()) { | |
133 st->print("int %d)", int_initial_value()); | |
134 } else if (t.is_long()){ | |
135 st->print_jlong(long_initial_value()); | |
136 } else if (t.is_float()){ | |
137 st->print("float %f)", float_initial_value()); | |
138 } else if (t.is_double()){ | |
139 st->print("double %lf)", double_initial_value()); | |
140 } | |
141 } | |
142 } | |
143 | |
144 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
145 print_on(st); | |
146 BasicType ft = field_type(); | |
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147 jint as_int = 0; |
0 | 148 switch (ft) { |
149 case T_BYTE: | |
150 as_int = (jint)obj->byte_field(offset()); | |
151 st->print(" %d", obj->byte_field(offset())); | |
152 break; | |
153 case T_CHAR: | |
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154 as_int = (jint)obj->char_field(offset()); |
0 | 155 { |
156 jchar c = obj->char_field(offset()); | |
157 as_int = c; | |
158 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
159 } | |
160 break; | |
161 case T_DOUBLE: | |
162 st->print(" %lf", obj->double_field(offset())); | |
163 break; | |
164 case T_FLOAT: | |
165 as_int = obj->int_field(offset()); | |
166 st->print(" %f", obj->float_field(offset())); | |
167 break; | |
168 case T_INT: | |
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169 as_int = obj->int_field(offset()); |
0 | 170 st->print(" %d", obj->int_field(offset())); |
171 break; | |
172 case T_LONG: | |
173 st->print(" "); | |
174 st->print_jlong(obj->long_field(offset())); | |
175 break; | |
176 case T_SHORT: | |
177 as_int = obj->short_field(offset()); | |
178 st->print(" %d", obj->short_field(offset())); | |
179 break; | |
180 case T_BOOLEAN: | |
181 as_int = obj->bool_field(offset()); | |
182 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
183 break; | |
184 case T_ARRAY: | |
185 st->print(" "); | |
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186 NOT_LP64(as_int = obj->int_field(offset())); |
0 | 187 obj->obj_field(offset())->print_value_on(st); |
188 break; | |
189 case T_OBJECT: | |
190 st->print(" "); | |
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191 NOT_LP64(as_int = obj->int_field(offset())); |
0 | 192 obj->obj_field(offset())->print_value_on(st); |
193 break; | |
194 default: | |
195 ShouldNotReachHere(); | |
196 break; | |
197 } | |
198 // Print a hint as to the underlying integer representation. This can be wrong for | |
199 // pointers on an LP64 machine | |
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200 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
0 | 201 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
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202 } else if (as_int < 0 || as_int > 9) { |
0 | 203 st->print(" (%x)", as_int); |
204 } | |
205 } | |
206 | |
207 #endif /* PRODUCT */ |