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annotate src/share/vm/runtime/fieldDescriptor.hpp @ 3637:ff6a991c6e3c
Use GraalEnv to look up types.
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Wed, 16 Nov 2011 01:48:25 +0100 |
| parents | 1d1603768966 |
| children | 04b9a2566eec |
| 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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Use GraalEnv to look up types.
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52 int name_index() const { return _name_index; } |
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Use GraalEnv to look up types.
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53 int signature_index() const { return _signature_index; } |
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54 Symbol* name() const { return _cp->symbol_at(_name_index); } |
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55 Symbol* signature() const { return _cp->symbol_at(_signature_index); } |
| 0 | 56 klassOop field_holder() const { return _cp->pool_holder(); } |
| 57 constantPoolOop constants() const { return _cp(); } | |
| 58 AccessFlags access_flags() const { return _access_flags; } | |
| 59 oop loader() const; | |
| 60 // Offset (in words) of field from start of instanceOop / klassOop | |
| 61 int offset() const { return _offset; } | |
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62 Symbol* generic_signature() const { return (_generic_signature_index > 0 ? _cp->symbol_at(_generic_signature_index) : (Symbol*)NULL); } |
| 0 | 63 int index() const { return _index; } |
| 64 typeArrayOop annotations() const; | |
| 65 | |
| 66 // Initial field value | |
| 67 bool has_initial_value() const { return _initial_value_index != 0; } | |
| 68 constantTag initial_value_tag() const; // The tag will return true on one of is_int(), is_long(), is_single(), is_double() | |
| 69 jint int_initial_value() const; | |
| 70 jlong long_initial_value() const; | |
| 71 jfloat float_initial_value() const; | |
| 72 jdouble double_initial_value() const; | |
| 73 oop string_initial_value(TRAPS) const; | |
| 74 | |
| 75 // Field signature type | |
| 76 BasicType field_type() const { return FieldType::basic_type(signature()); } | |
| 77 | |
| 78 // Access flags | |
| 79 bool is_public() const { return _access_flags.is_public(); } | |
| 80 bool is_private() const { return _access_flags.is_private(); } | |
| 81 bool is_protected() const { return _access_flags.is_protected(); } | |
| 82 bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); } | |
| 83 | |
| 84 bool is_static() const { return _access_flags.is_static(); } | |
| 85 bool is_final() const { return _access_flags.is_final(); } | |
| 86 bool is_volatile() const { return _access_flags.is_volatile(); } | |
| 87 bool is_transient() const { return _access_flags.is_transient(); } | |
| 88 | |
| 89 bool is_synthetic() const { return _access_flags.is_synthetic(); } | |
| 90 | |
| 91 bool is_field_access_watched() const { return _access_flags.is_field_access_watched(); } | |
| 92 bool is_field_modification_watched() const | |
| 93 { return _access_flags.is_field_modification_watched(); } | |
| 94 void set_is_field_access_watched(const bool value) | |
| 95 { _access_flags.set_is_field_access_watched(value); } | |
| 96 void set_is_field_modification_watched(const bool value) | |
| 97 { _access_flags.set_is_field_modification_watched(value); } | |
| 98 | |
| 99 // Initialization | |
| 100 void initialize(klassOop k, int index); | |
| 101 | |
| 102 // Print | |
| 103 void print_on(outputStream* st) const PRODUCT_RETURN; | |
| 104 void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN; | |
| 105 }; | |
| 1972 | 106 |
| 107 #endif // SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP |