Mercurial > hg > truffle
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | 18fb7da42534 |
| children | 35431a769282 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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" | |
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30 #include "oops/annotations.hpp" |
| 1972 | 31 #include "oops/instanceKlass.hpp" |
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32 #include "oops/fieldStreams.hpp" |
| 1972 | 33 #include "runtime/fieldDescriptor.hpp" |
| 34 #include "runtime/handles.inline.hpp" | |
| 35 #include "runtime/signature.hpp" | |
| 0 | 36 |
| 37 | |
| 38 oop fieldDescriptor::loader() const { | |
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39 return _cp->pool_holder()->class_loader(); |
| 0 | 40 } |
| 41 | |
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42 Symbol* fieldDescriptor::generic_signature() const { |
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43 if (!has_generic_signature()) { |
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44 return NULL; |
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45 } |
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46 |
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47 int idx = 0; |
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48 InstanceKlass* ik = field_holder(); |
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49 for (AllFieldStream fs(ik); !fs.done(); fs.next()) { |
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50 if (idx == _index) { |
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51 return fs.generic_signature(); |
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52 } else { |
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53 idx ++; |
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54 } |
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55 } |
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56 assert(false, "should never happen"); |
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57 return NULL; |
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58 } |
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59 |
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60 AnnotationArray* fieldDescriptor::annotations() const { |
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61 InstanceKlass* ik = field_holder(); |
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62 Array<AnnotationArray*>* md = ik->fields_annotations(); |
| 0 | 63 if (md == NULL) |
| 64 return NULL; | |
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65 return md->at(index()); |
| 0 | 66 } |
| 67 | |
| 68 constantTag fieldDescriptor::initial_value_tag() const { | |
| 3938 | 69 return constants()->tag_at(initial_value_index()); |
| 0 | 70 } |
| 71 | |
| 72 jint fieldDescriptor::int_initial_value() const { | |
| 3938 | 73 return constants()->int_at(initial_value_index()); |
| 0 | 74 } |
| 75 | |
| 76 jlong fieldDescriptor::long_initial_value() const { | |
| 3938 | 77 return constants()->long_at(initial_value_index()); |
| 0 | 78 } |
| 79 | |
| 80 jfloat fieldDescriptor::float_initial_value() const { | |
| 3938 | 81 return constants()->float_at(initial_value_index()); |
| 0 | 82 } |
| 83 | |
| 84 jdouble fieldDescriptor::double_initial_value() const { | |
| 3938 | 85 return constants()->double_at(initial_value_index()); |
| 0 | 86 } |
| 87 | |
| 88 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
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89 return constants()->uncached_string_at(initial_value_index(), CHECK_0); |
| 0 | 90 } |
| 91 | |
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92 void fieldDescriptor::initialize(InstanceKlass* ik, int index) { |
| 0 | 93 _cp = ik->constants(); |
| 3938 | 94 FieldInfo* f = ik->field(index); |
| 95 assert(!f->is_internal(), "regular Java fields only"); | |
| 0 | 96 |
| 3938 | 97 _access_flags = accessFlags_from(f->access_flags()); |
| 98 guarantee(f->name_index() != 0 && f->signature_index() != 0, "bad constant pool index for fieldDescriptor"); | |
| 0 | 99 _index = index; |
| 100 } | |
| 101 | |
| 102 #ifndef PRODUCT | |
| 103 | |
| 104 void fieldDescriptor::print_on(outputStream* st) const { | |
| 3938 | 105 access_flags().print_on(st); |
| 106 name()->print_value_on(st); | |
| 0 | 107 st->print(" "); |
| 3938 | 108 signature()->print_value_on(st); |
| 0 | 109 st->print(" @%d ", offset()); |
| 110 if (WizardMode && has_initial_value()) { | |
| 111 st->print("(initval "); | |
| 112 constantTag t = initial_value_tag(); | |
| 113 if (t.is_int()) { | |
| 114 st->print("int %d)", int_initial_value()); | |
| 115 } else if (t.is_long()){ | |
| 116 st->print_jlong(long_initial_value()); | |
| 117 } else if (t.is_float()){ | |
| 118 st->print("float %f)", float_initial_value()); | |
| 119 } else if (t.is_double()){ | |
| 120 st->print("double %lf)", double_initial_value()); | |
| 121 } | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
| 126 print_on(st); | |
| 127 BasicType ft = field_type(); | |
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128 jint as_int = 0; |
| 0 | 129 switch (ft) { |
| 130 case T_BYTE: | |
| 131 as_int = (jint)obj->byte_field(offset()); | |
| 132 st->print(" %d", obj->byte_field(offset())); | |
| 133 break; | |
| 134 case T_CHAR: | |
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135 as_int = (jint)obj->char_field(offset()); |
| 0 | 136 { |
| 137 jchar c = obj->char_field(offset()); | |
| 138 as_int = c; | |
| 139 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
| 140 } | |
| 141 break; | |
| 142 case T_DOUBLE: | |
| 143 st->print(" %lf", obj->double_field(offset())); | |
| 144 break; | |
| 145 case T_FLOAT: | |
| 146 as_int = obj->int_field(offset()); | |
| 147 st->print(" %f", obj->float_field(offset())); | |
| 148 break; | |
| 149 case T_INT: | |
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150 as_int = obj->int_field(offset()); |
| 0 | 151 st->print(" %d", obj->int_field(offset())); |
| 152 break; | |
| 153 case T_LONG: | |
| 154 st->print(" "); | |
| 155 st->print_jlong(obj->long_field(offset())); | |
| 156 break; | |
| 157 case T_SHORT: | |
| 158 as_int = obj->short_field(offset()); | |
| 159 st->print(" %d", obj->short_field(offset())); | |
| 160 break; | |
| 161 case T_BOOLEAN: | |
| 162 as_int = obj->bool_field(offset()); | |
| 163 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
| 164 break; | |
| 165 case T_ARRAY: | |
| 166 st->print(" "); | |
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167 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 168 obj->obj_field(offset())->print_value_on(st); |
| 169 break; | |
| 170 case T_OBJECT: | |
| 171 st->print(" "); | |
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172 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 173 obj->obj_field(offset())->print_value_on(st); |
| 174 break; | |
| 175 default: | |
| 176 ShouldNotReachHere(); | |
| 177 break; | |
| 178 } | |
| 179 // Print a hint as to the underlying integer representation. This can be wrong for | |
| 180 // pointers on an LP64 machine | |
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181 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
| 0 | 182 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
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183 } else if (as_int < 0 || as_int > 9) { |
| 0 | 184 st->print(" (%x)", as_int); |
| 185 } | |
| 186 } | |
| 187 | |
| 188 #endif /* PRODUCT */ |