Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeNewArray.java @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.interpreter; | |
| 26 | |
| 27 import sun.jvm.hotspot.oops.*; | |
| 28 import sun.jvm.hotspot.utilities.*; | |
| 29 | |
| 30 public class BytecodeNewArray extends Bytecode { | |
| 31 BytecodeNewArray(Method method, int bci) { | |
| 32 super(method, bci); | |
| 33 } | |
| 34 | |
| 35 public int getType() { | |
| 36 return (int) javaByteAt(1); | |
| 37 } | |
| 38 | |
| 39 public void verify() { | |
| 40 if (Assert.ASSERTS_ENABLED) { | |
| 41 Assert.that(isValid(), "check newarray"); | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 public boolean isValid() { | |
| 46 boolean result = javaCode() == Bytecodes._newarray; | |
| 47 if (result == false) return false; | |
| 48 switch (getType()) { | |
| 49 case TypeArrayKlass.T_BOOLEAN: | |
| 50 case TypeArrayKlass.T_CHAR: | |
| 51 case TypeArrayKlass.T_FLOAT: | |
| 52 case TypeArrayKlass.T_DOUBLE: | |
| 53 case TypeArrayKlass.T_BYTE: | |
| 54 case TypeArrayKlass.T_SHORT: | |
| 55 case TypeArrayKlass.T_INT: | |
| 56 case TypeArrayKlass.T_LONG: | |
| 57 break; | |
| 58 default: | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 return true; | |
| 63 } | |
| 64 | |
| 65 public String getTypeName() { | |
| 66 String result; | |
| 67 switch (getType()) { | |
| 68 case TypeArrayKlass.T_BOOLEAN: | |
| 69 result = "boolean"; | |
| 70 break; | |
| 71 | |
| 72 case TypeArrayKlass.T_CHAR: | |
| 73 result = "char"; | |
| 74 break; | |
| 75 | |
| 76 case TypeArrayKlass.T_FLOAT: | |
| 77 result = "float"; | |
| 78 break; | |
| 79 | |
| 80 case TypeArrayKlass.T_DOUBLE: | |
| 81 result = "double"; | |
| 82 break; | |
| 83 | |
| 84 case TypeArrayKlass.T_BYTE: | |
| 85 result = "byte"; | |
| 86 break; | |
| 87 | |
| 88 case TypeArrayKlass.T_SHORT: | |
| 89 result = "short"; | |
| 90 break; | |
| 91 | |
| 92 case TypeArrayKlass.T_INT: | |
| 93 result = "int"; | |
| 94 break; | |
| 95 | |
| 96 case TypeArrayKlass.T_LONG: | |
| 97 result = "long"; | |
| 98 break; | |
| 99 | |
| 100 default: // should not happen | |
| 101 result = "<invalid>"; | |
| 102 break; | |
| 103 } | |
| 104 | |
| 105 return result; | |
| 106 } | |
| 107 | |
| 108 public static BytecodeNewArray at(Method method, int bci) { | |
| 109 BytecodeNewArray b = new BytecodeNewArray(method, bci); | |
| 110 if (Assert.ASSERTS_ENABLED) { | |
| 111 b.verify(); | |
| 112 } | |
| 113 return b; | |
| 114 } | |
| 115 | |
| 116 /** Like at, but returns null if the BCI is not at newarray */ | |
| 117 public static BytecodeNewArray atCheck(Method method, int bci) { | |
| 118 BytecodeNewArray b = new BytecodeNewArray(method, bci); | |
| 119 return (b.isValid() ? b : null); | |
| 120 } | |
| 121 | |
| 122 public static BytecodeNewArray at(BytecodeStream bcs) { | |
| 123 return new BytecodeNewArray(bcs.method(), bcs.bci()); | |
| 124 } | |
| 125 | |
| 126 public String toString() { | |
| 127 StringBuffer buf = new StringBuffer(); | |
| 128 buf.append("newarray"); | |
| 129 buf.append(spaces); | |
| 130 buf.append(getTypeName()); | |
| 131 return buf.toString(); | |
| 132 } | |
| 133 } |