Mercurial > hg > truffle
annotate src/share/vm/ci/ciCPCache.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 | f95d63e2154a |
| rev | line source |
|---|---|
| 1137 | 1 /* |
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2 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. |
| 1137 | 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. |
| 1137 | 22 * |
| 23 */ | |
| 24 | |
| 25 // ciCPCache | |
| 26 // | |
| 27 // This class represents a constant pool cache. | |
| 28 // | |
| 29 // Note: This class is called ciCPCache as ciConstantPoolCache is used | |
| 30 // for something different. | |
| 31 class ciCPCache : public ciObject { | |
| 1602 | 32 private: |
| 33 constantPoolCacheOop get_cpCacheOop() { // must be called inside a VM_ENTRY_MARK | |
| 34 return (constantPoolCacheOop) get_oop(); | |
| 35 } | |
| 36 | |
| 37 ConstantPoolCacheEntry* entry_at(int i) { | |
| 38 int raw_index = i; | |
| 39 if (constantPoolCacheOopDesc::is_secondary_index(i)) | |
| 40 raw_index = constantPoolCacheOopDesc::decode_secondary_index(i); | |
| 41 return get_cpCacheOop()->entry_at(raw_index); | |
| 42 } | |
| 43 | |
| 1137 | 44 public: |
| 45 ciCPCache(constantPoolCacheHandle cpcache) : ciObject(cpcache) {} | |
| 46 | |
| 47 // What kind of ciObject is this? | |
| 48 bool is_cpcache() const { return true; } | |
| 49 | |
| 50 // Get the offset in bytes from the oop to the f1 field of the | |
| 51 // requested entry. | |
| 52 size_t get_f1_offset(int index); | |
| 53 | |
| 1295 | 54 bool is_f1_null_at(int index); |
| 55 | |
| 1602 | 56 int get_pool_index(int index); |
| 57 | |
| 1137 | 58 void print(); |
| 59 }; |