Mercurial > hg > truffle
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 665:c89f86385056
6814659: separable cleanups and subroutines for 6655638
Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never
| author | jrose |
|---|---|
| date | Fri, 20 Mar 2009 23:19:36 -0700 |
| parents | a61af66fc99e |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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c89f86385056
6814659: separable cleanups and subroutines for 6655638
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changeset
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2 * Copyright 1997-2009 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 #include "incls/_fieldDescriptor.cpp.incl" | |
| 27 | |
| 28 | |
| 29 oop fieldDescriptor::loader() const { | |
| 30 return instanceKlass::cast(_cp->pool_holder())->class_loader(); | |
| 31 } | |
| 32 | |
| 33 typeArrayOop fieldDescriptor::annotations() const { | |
| 34 instanceKlass* ik = instanceKlass::cast(field_holder()); | |
| 35 objArrayOop md = ik->fields_annotations(); | |
| 36 if (md == NULL) | |
| 37 return NULL; | |
| 38 assert((index() % instanceKlass::next_offset) == 0, ""); | |
| 39 return typeArrayOop(md->obj_at(index() / instanceKlass::next_offset)); | |
| 40 } | |
| 41 | |
| 42 constantTag fieldDescriptor::initial_value_tag() const { | |
| 43 return constants()->tag_at(_initial_value_index); | |
| 44 } | |
| 45 | |
| 46 jint fieldDescriptor::int_initial_value() const { | |
| 47 return constants()->int_at(_initial_value_index); | |
| 48 } | |
| 49 | |
| 50 jlong fieldDescriptor::long_initial_value() const { | |
| 51 return constants()->long_at(_initial_value_index); | |
| 52 } | |
| 53 | |
| 54 jfloat fieldDescriptor::float_initial_value() const { | |
| 55 return constants()->float_at(_initial_value_index); | |
| 56 } | |
| 57 | |
| 58 jdouble fieldDescriptor::double_initial_value() const { | |
| 59 return constants()->double_at(_initial_value_index); | |
| 60 } | |
| 61 | |
| 62 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
| 63 return constants()->string_at(_initial_value_index, CHECK_0); | |
| 64 } | |
| 65 | |
| 66 void fieldDescriptor::initialize(klassOop k, int index) { | |
| 67 instanceKlass* ik = instanceKlass::cast(k); | |
| 68 _cp = ik->constants(); | |
| 69 typeArrayOop fields = ik->fields(); | |
| 70 | |
| 71 assert(fields->length() % instanceKlass::next_offset == 0, "Illegal size of field array"); | |
| 72 assert(fields->length() >= index + instanceKlass::next_offset, "Illegal size of field array"); | |
| 73 | |
| 74 _access_flags.set_field_flags(fields->ushort_at(index + instanceKlass::access_flags_offset)); | |
| 75 _name_index = fields->ushort_at(index + instanceKlass::name_index_offset); | |
| 76 _signature_index = fields->ushort_at(index + instanceKlass::signature_index_offset); | |
| 77 _initial_value_index = fields->ushort_at(index + instanceKlass::initval_index_offset); | |
| 78 guarantee(_name_index != 0 && _signature_index != 0, "bad constant pool index for fieldDescriptor"); | |
| 79 _offset = ik->offset_from_fields( index ); | |
| 80 _generic_signature_index = fields->ushort_at(index + instanceKlass::generic_signature_offset); | |
| 81 _index = index; | |
| 82 } | |
| 83 | |
| 84 #ifndef PRODUCT | |
| 85 | |
| 86 void fieldDescriptor::print_on(outputStream* st) const { | |
| 87 _access_flags.print_on(st); | |
| 88 constants()->symbol_at(_name_index)->print_value_on(st); | |
| 89 st->print(" "); | |
| 90 constants()->symbol_at(_signature_index)->print_value_on(st); | |
| 91 st->print(" @%d ", offset()); | |
| 92 if (WizardMode && has_initial_value()) { | |
| 93 st->print("(initval "); | |
| 94 constantTag t = initial_value_tag(); | |
| 95 if (t.is_int()) { | |
| 96 st->print("int %d)", int_initial_value()); | |
| 97 } else if (t.is_long()){ | |
| 98 st->print_jlong(long_initial_value()); | |
| 99 } else if (t.is_float()){ | |
| 100 st->print("float %f)", float_initial_value()); | |
| 101 } else if (t.is_double()){ | |
| 102 st->print("double %lf)", double_initial_value()); | |
| 103 } | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
| 108 print_on(st); | |
| 109 BasicType ft = field_type(); | |
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6814659: separable cleanups and subroutines for 6655638
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110 jint as_int = 0; |
| 0 | 111 switch (ft) { |
| 112 case T_BYTE: | |
| 113 as_int = (jint)obj->byte_field(offset()); | |
| 114 st->print(" %d", obj->byte_field(offset())); | |
| 115 break; | |
| 116 case T_CHAR: | |
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6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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117 as_int = (jint)obj->char_field(offset()); |
| 0 | 118 { |
| 119 jchar c = obj->char_field(offset()); | |
| 120 as_int = c; | |
| 121 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
| 122 } | |
| 123 break; | |
| 124 case T_DOUBLE: | |
| 125 st->print(" %lf", obj->double_field(offset())); | |
| 126 break; | |
| 127 case T_FLOAT: | |
| 128 as_int = obj->int_field(offset()); | |
| 129 st->print(" %f", obj->float_field(offset())); | |
| 130 break; | |
| 131 case T_INT: | |
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6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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132 as_int = obj->int_field(offset()); |
| 0 | 133 st->print(" %d", obj->int_field(offset())); |
| 134 break; | |
| 135 case T_LONG: | |
| 136 st->print(" "); | |
| 137 st->print_jlong(obj->long_field(offset())); | |
| 138 break; | |
| 139 case T_SHORT: | |
| 140 as_int = obj->short_field(offset()); | |
| 141 st->print(" %d", obj->short_field(offset())); | |
| 142 break; | |
| 143 case T_BOOLEAN: | |
| 144 as_int = obj->bool_field(offset()); | |
| 145 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
| 146 break; | |
| 147 case T_ARRAY: | |
| 148 st->print(" "); | |
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6814659: separable cleanups and subroutines for 6655638
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149 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 150 obj->obj_field(offset())->print_value_on(st); |
| 151 break; | |
| 152 case T_OBJECT: | |
| 153 st->print(" "); | |
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c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
0
diff
changeset
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154 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 155 obj->obj_field(offset())->print_value_on(st); |
| 156 break; | |
| 157 default: | |
| 158 ShouldNotReachHere(); | |
| 159 break; | |
| 160 } | |
| 161 // Print a hint as to the underlying integer representation. This can be wrong for | |
| 162 // pointers on an LP64 machine | |
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665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
0
diff
changeset
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163 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
| 0 | 164 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
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665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
0
diff
changeset
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165 } else if (as_int < 0 || as_int > 9) { |
| 0 | 166 st->print(" (%x)", as_int); |
| 167 } | |
| 168 } | |
| 169 | |
| 170 #endif /* PRODUCT */ |