Mercurial > hg > truffle
annotate src/share/vm/ci/ciObjectFactory.hpp @ 1602:136b78722a08
6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode.
Reviewed-by: twisti, never
| author | jrose |
|---|---|
| date | Wed, 09 Jun 2010 18:50:45 -0700 |
| parents | c18cbe5936b8 |
| children | 2d26b0046e0d f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. |
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| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
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| 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 // ciObjectFactory | |
| 26 // | |
| 27 // This class handles requests for the creation of new instances | |
| 28 // of ciObject and its subclasses. It contains a caching mechanism | |
| 29 // which ensures that for each oop, at most one ciObject is created. | |
| 30 // This invariant allows efficient implementation of ciObject. | |
| 31 class ciObjectFactory : public ResourceObj { | |
| 32 private: | |
| 33 static volatile bool _initialized; | |
| 34 static GrowableArray<ciObject*>* _shared_ci_objects; | |
| 35 static ciSymbol* _shared_ci_symbols[]; | |
| 36 static int _shared_ident_limit; | |
| 37 | |
| 38 Arena* _arena; | |
| 39 GrowableArray<ciObject*>* _ci_objects; | |
| 40 GrowableArray<ciMethod*>* _unloaded_methods; | |
| 41 GrowableArray<ciKlass*>* _unloaded_klasses; | |
| 1602 | 42 GrowableArray<ciInstance*>* _unloaded_instances; |
| 0 | 43 GrowableArray<ciReturnAddress*>* _return_addresses; |
| 44 int _next_ident; | |
| 45 | |
| 46 public: | |
| 47 struct NonPermObject : public ResourceObj { | |
| 48 ciObject* _object; | |
| 49 NonPermObject* _next; | |
| 50 | |
| 51 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object); | |
| 52 ciObject* object() { return _object; } | |
| 53 NonPermObject* &next() { return _next; } | |
| 54 }; | |
| 55 private: | |
| 56 enum { NON_PERM_BUCKETS = 61 }; | |
| 57 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS]; | |
| 58 int _non_perm_count; | |
| 59 | |
| 60 int find(oop key, GrowableArray<ciObject*>* objects); | |
| 61 bool is_found_at(int index, oop key, GrowableArray<ciObject*>* objects); | |
| 62 void insert(int index, ciObject* obj, GrowableArray<ciObject*>* objects); | |
| 63 ciObject* create_new_object(oop o); | |
| 64 static bool is_equal(NonPermObject* p, oop key) { | |
| 65 return p->object()->get_oop() == key; | |
| 66 } | |
| 67 | |
| 68 NonPermObject* &find_non_perm(oop key); | |
| 69 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
| 70 | |
| 71 void init_ident_of(ciObject* obj); | |
| 72 | |
| 73 Arena* arena() { return _arena; } | |
| 74 | |
| 75 void print_contents_impl(); | |
| 76 | |
| 1602 | 77 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
| 78 | |
| 0 | 79 public: |
| 80 static bool is_initialized() { return _initialized; } | |
| 81 | |
| 82 static void initialize(); | |
| 83 void init_shared_objects(); | |
| 84 | |
| 85 ciObjectFactory(Arena* arena, int expected_size); | |
| 86 | |
| 87 | |
| 88 // Get the ciObject corresponding to some oop. | |
| 89 ciObject* get(oop key); | |
| 90 | |
| 91 // Get the ciSymbol corresponding to one of the vmSymbols. | |
| 92 static ciSymbol* vm_symbol_at(int index); | |
| 93 | |
| 94 // Get the ciMethod representing an unloaded/unfound method. | |
| 95 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
| 96 ciSymbol* name, | |
| 97 ciSymbol* signature); | |
| 98 | |
| 99 // Get a ciKlass representing an unloaded klass. | |
| 100 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
| 101 ciSymbol* name, | |
| 102 bool create_if_not_found); | |
| 103 | |
| 1602 | 104 // Get a ciInstance representing an unresolved klass mirror. |
| 105 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
| 106 | |
| 107 // Get a ciInstance representing an unresolved method handle constant. | |
| 108 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
| 109 ciSymbol* name, | |
| 110 ciSymbol* signature, | |
| 111 int ref_kind); | |
| 112 | |
| 113 // Get a ciInstance representing an unresolved method type constant. | |
| 114 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
| 115 | |
| 0 | 116 |
| 117 // Get the ciMethodData representing the methodData for a method | |
| 118 // with none. | |
| 119 ciMethodData* get_empty_methodData(); | |
| 120 | |
| 121 ciReturnAddress* get_return_address(int bci); | |
| 122 | |
| 123 void print_contents(); | |
| 124 void print(); | |
| 125 }; |