Mercurial > hg > graal-compiler
annotate src/share/vm/ci/ciInstanceKlass.hpp @ 1818:c93c652551b5
6986944: JSR 292 assert(caller_nm->is_method_handle_return(caller_frame.pc())) failed: must be MH call site
Reviewed-by: never, kvn
| author | twisti |
|---|---|
| date | Fri, 24 Sep 2010 03:51:43 -0700 |
| parents | 3941674cc7fa |
| children | 2d26b0046e0d f95d63e2154a |
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| 0 | 1 /* |
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2 * Copyright (c) 1999, 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 | |
| 25 // ciInstanceKlass | |
| 26 // | |
| 27 // This class represents a klassOop in the HotSpot virtual machine | |
| 28 // whose Klass part is an instanceKlass. It may or may not | |
| 29 // be loaded. | |
| 30 class ciInstanceKlass : public ciKlass { | |
| 31 CI_PACKAGE_ACCESS | |
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32 friend class ciBytecodeStream; |
| 0 | 33 friend class ciEnv; |
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34 friend class ciExceptionHandler; |
| 0 | 35 friend class ciMethod; |
| 36 friend class ciField; | |
| 37 | |
| 38 private: | |
| 39 jobject _loader; | |
| 40 jobject _protection_domain; | |
| 41 | |
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42 instanceKlass::ClassState _init_state; // state of class |
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43 bool _is_shared; |
| 0 | 44 bool _has_finalizer; |
| 45 bool _has_subklass; | |
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46 bool _has_nonstatic_fields; |
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47 |
| 0 | 48 ciFlags _flags; |
| 49 jint _nonstatic_field_size; | |
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50 jint _nonstatic_oop_map_size; |
| 0 | 51 |
| 52 // Lazy fields get filled in only upon request. | |
| 53 ciInstanceKlass* _super; | |
| 54 ciInstance* _java_mirror; | |
| 55 | |
| 56 ciConstantPoolCache* _field_cache; // cached map index->field | |
| 57 GrowableArray<ciField*>* _nonstatic_fields; | |
| 58 | |
| 59 enum { implementors_limit = instanceKlass::implementors_limit }; | |
| 60 ciInstanceKlass* _implementors[implementors_limit]; | |
| 61 jint _nof_implementors; | |
| 62 | |
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63 GrowableArray<ciField*>* _non_static_fields; |
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64 |
| 0 | 65 protected: |
| 66 ciInstanceKlass(KlassHandle h_k); | |
| 67 ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain); | |
| 68 | |
| 69 instanceKlass* get_instanceKlass() const { | |
| 70 return (instanceKlass*)get_Klass(); | |
| 71 } | |
| 72 | |
| 73 oop loader(); | |
| 74 jobject loader_handle(); | |
| 75 | |
| 76 oop protection_domain(); | |
| 77 jobject protection_domain_handle(); | |
| 78 | |
| 79 const char* type_string() { return "ciInstanceKlass"; } | |
| 80 | |
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81 bool is_in_package_impl(const char* packagename, int len); |
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82 |
| 0 | 83 void print_impl(outputStream* st); |
| 84 | |
| 85 ciConstantPoolCache* field_cache(); | |
| 86 | |
| 87 bool is_shared() { return _is_shared; } | |
| 88 | |
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89 void compute_shared_init_state(); |
| 0 | 90 bool compute_shared_has_subklass(); |
| 91 int compute_shared_nof_implementors(); | |
| 92 int compute_nonstatic_fields(); | |
| 93 GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields); | |
| 94 | |
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95 // Update the init_state for shared klasses |
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96 void update_if_shared(instanceKlass::ClassState expected) { |
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97 if (_is_shared && _init_state != expected) { |
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98 if (is_loaded()) compute_shared_init_state(); |
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99 } |
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100 } |
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101 |
| 0 | 102 public: |
| 103 // Has this klass been initialized? | |
| 104 bool is_initialized() { | |
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105 update_if_shared(instanceKlass::fully_initialized); |
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106 return _init_state == instanceKlass::fully_initialized; |
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107 } |
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108 // Is this klass being initialized? |
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109 bool is_being_initialized() { |
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110 update_if_shared(instanceKlass::being_initialized); |
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111 return _init_state == instanceKlass::being_initialized; |
| 0 | 112 } |
| 113 // Has this klass been linked? | |
| 114 bool is_linked() { | |
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115 update_if_shared(instanceKlass::linked); |
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116 return _init_state >= instanceKlass::linked; |
| 0 | 117 } |
| 118 | |
| 119 // General klass information. | |
| 120 ciFlags flags() { | |
| 121 assert(is_loaded(), "must be loaded"); | |
| 122 return _flags; | |
| 123 } | |
| 124 bool has_finalizer() { | |
| 125 assert(is_loaded(), "must be loaded"); | |
| 126 return _has_finalizer; } | |
| 127 bool has_subklass() { | |
| 128 assert(is_loaded(), "must be loaded"); | |
| 129 if (_is_shared && !_has_subklass) { | |
| 130 if (flags().is_final()) { | |
| 131 return false; | |
| 132 } else { | |
| 133 return compute_shared_has_subklass(); | |
| 134 } | |
| 135 } | |
| 136 return _has_subklass; | |
| 137 } | |
| 138 jint size_helper() { | |
| 139 return (Klass::layout_helper_size_in_bytes(layout_helper()) | |
| 140 >> LogHeapWordSize); | |
| 141 } | |
| 142 jint nonstatic_field_size() { | |
| 143 assert(is_loaded(), "must be loaded"); | |
| 144 return _nonstatic_field_size; } | |
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145 jint has_nonstatic_fields() { |
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146 assert(is_loaded(), "must be loaded"); |
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147 return _has_nonstatic_fields; } |
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148 jint nonstatic_oop_map_size() { |
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149 assert(is_loaded(), "must be loaded"); |
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150 return _nonstatic_oop_map_size; } |
| 0 | 151 ciInstanceKlass* super(); |
| 152 jint nof_implementors() { | |
| 153 assert(is_loaded(), "must be loaded"); | |
| 154 if (_is_shared) return compute_shared_nof_implementors(); | |
| 155 return _nof_implementors; | |
| 156 } | |
| 157 | |
| 158 ciInstanceKlass* get_canonical_holder(int offset); | |
| 159 ciField* get_field_by_offset(int field_offset, bool is_static); | |
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160 ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static); |
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161 |
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162 GrowableArray<ciField*>* non_static_fields(); |
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163 |
| 0 | 164 // total number of nonstatic fields (including inherited): |
| 165 int nof_nonstatic_fields() { | |
| 166 if (_nonstatic_fields == NULL) | |
| 167 return compute_nonstatic_fields(); | |
| 168 else | |
| 169 return _nonstatic_fields->length(); | |
| 170 } | |
| 171 // nth nonstatic field (presented by ascending address) | |
| 172 ciField* nonstatic_field_at(int i) { | |
| 173 assert(_nonstatic_fields != NULL, ""); | |
| 174 return _nonstatic_fields->at(i); | |
| 175 } | |
| 176 | |
| 177 ciInstanceKlass* unique_concrete_subklass(); | |
| 178 bool has_finalizable_subclass(); | |
| 179 | |
| 180 bool contains_field_offset(int offset) { | |
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181 return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size()); |
| 0 | 182 } |
| 183 | |
| 184 // Get the instance of java.lang.Class corresponding to | |
| 185 // this klass. This instance is used for locking of | |
| 186 // synchronized static methods of this klass. | |
| 187 ciInstance* java_mirror(); | |
| 188 | |
| 189 // Java access flags | |
| 190 bool is_public () { return flags().is_public(); } | |
| 191 bool is_final () { return flags().is_final(); } | |
| 192 bool is_super () { return flags().is_super(); } | |
| 193 bool is_interface () { return flags().is_interface(); } | |
| 194 bool is_abstract () { return flags().is_abstract(); } | |
| 195 | |
| 196 ciMethod* find_method(ciSymbol* name, ciSymbol* signature); | |
| 197 // Note: To find a method from name and type strings, use ciSymbol::make, | |
| 198 // but consider adding to vmSymbols.hpp instead. | |
| 199 | |
| 200 bool is_leaf_type(); | |
| 201 ciInstanceKlass* implementor(int n); | |
| 202 | |
| 203 // Is the defining class loader of this class the default loader? | |
| 204 bool uses_default_loader(); | |
| 205 | |
| 206 bool is_java_lang_Object(); | |
| 207 | |
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208 // Is this klass in the given package? |
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209 bool is_in_package(const char* packagename) { |
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210 return is_in_package(packagename, (int) strlen(packagename)); |
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211 } |
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212 bool is_in_package(const char* packagename, int len); |
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213 |
| 0 | 214 // What kind of ciObject is this? |
| 215 bool is_instance_klass() { return true; } | |
| 216 bool is_java_klass() { return true; } | |
| 217 }; |