0
|
1 /*
|
|
2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
|
|
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 *
|
|
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
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 }
|