Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaFrame.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
author | jrose |
---|---|
date | Sat, 30 Oct 2010 13:08:23 -0700 |
parents | c18cbe5936b8 |
children | 0251d217257f |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
2 * Copyright (c) 2004, 2007, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.utilities.soql; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.oops.*; | |
30 import sun.jvm.hotspot.runtime.*; | |
31 | |
32 public class JSJavaFrame extends DefaultScriptObject { | |
33 private static final int FIELD_METHOD = 0; | |
34 private static final int FIELD_BCI = 1; | |
35 private static final int FIELD_LINE_NUMBER = 2; | |
36 private static final int FIELD_LOCALS = 3; | |
37 private static final int FIELD_THIS_OBJECT = 4; | |
38 private static final int FIELD_THREAD = 5; | |
39 private static final int FIELD_UNDEFINED = -1; | |
40 | |
41 public JSJavaFrame(JavaVFrame jvf, JSJavaFactory fac) { | |
42 this.jvf = jvf; | |
43 this.factory = fac; | |
44 } | |
45 | |
46 public Object get(String name) { | |
47 int fieldID = getFieldID(name); | |
48 switch (fieldID) { | |
49 case FIELD_METHOD: | |
50 return getMethod(); | |
51 case FIELD_BCI: | |
52 return new Integer(getBCI()); | |
53 case FIELD_LINE_NUMBER: | |
54 return new Integer(getLineNumber()); | |
55 case FIELD_LOCALS: | |
56 return getLocals(); | |
57 case FIELD_THIS_OBJECT: | |
58 return getThisObject(); | |
59 case FIELD_THREAD: | |
60 return getThread(); | |
61 case FIELD_UNDEFINED: | |
62 default: | |
63 return super.get(name); | |
64 } | |
65 } | |
66 | |
67 public Object[] getIds() { | |
68 Object[] fieldNames = fields.keySet().toArray(); | |
69 Object[] superFields = super.getIds(); | |
70 Object[] res = new Object[fieldNames.length + superFields.length]; | |
71 System.arraycopy(fieldNames, 0, res, 0, fieldNames.length); | |
72 System.arraycopy(superFields, 0, res, fieldNames.length, superFields.length); | |
73 return res; | |
74 } | |
75 | |
76 public boolean has(String name) { | |
77 if (getFieldID(name) != FIELD_UNDEFINED) { | |
78 return true; | |
79 } else { | |
80 return super.has(name); | |
81 } | |
82 } | |
83 | |
84 public void put(String name, Object value) { | |
85 if (getFieldID(name) == FIELD_UNDEFINED) { | |
86 super.put(name, value); | |
87 } | |
88 } | |
89 | |
90 public String toString() { | |
91 StringBuffer buf = new StringBuffer(); | |
92 buf.append("Frame (method="); | |
93 buf.append(jvf.getMethod().externalNameAndSignature()); | |
94 buf.append(", bci="); | |
95 buf.append(getBCI()); | |
96 buf.append(", line="); | |
97 buf.append(getLineNumber()); | |
98 buf.append(')'); | |
99 return buf.toString(); | |
100 } | |
101 | |
102 //-- Internals only below this point | |
103 private static Map fields = new HashMap(); | |
104 private static void addField(String name, int fieldId) { | |
105 fields.put(name, new Integer(fieldId)); | |
106 } | |
107 | |
108 private static int getFieldID(String name) { | |
109 Integer res = (Integer) fields.get(name); | |
110 return (res != null)? res.intValue() : FIELD_UNDEFINED; | |
111 } | |
112 | |
113 static { | |
114 addField("method", FIELD_METHOD); | |
115 addField("bci", FIELD_BCI); | |
116 addField("line", FIELD_LINE_NUMBER); | |
117 addField("locals", FIELD_LOCALS); | |
118 addField("thisObject", FIELD_THIS_OBJECT); | |
119 addField("thread", FIELD_THREAD); | |
120 } | |
121 | |
122 private JSJavaObject getMethod() { | |
123 return factory.newJSJavaObject(jvf.getMethod()); | |
124 } | |
125 | |
126 private int getBCI() { | |
127 return jvf.getBCI(); | |
128 } | |
129 | |
130 private int getLineNumber() { | |
131 int bci = jvf.getBCI(); | |
132 if (bci == -1) { | |
133 return 0; | |
134 } else { | |
135 int lineNum = jvf.getMethod().getLineNumberFromBCI(bci); | |
136 return (lineNum <= 0)? 0 : lineNum; | |
137 } | |
138 } | |
139 | |
140 private synchronized JSMap getLocals() { | |
141 if (localsCache == null) { | |
142 Map map = new HashMap(); | |
143 localsCache = factory.newJSMap(map); | |
144 StackValueCollection values = jvf.getLocals(); | |
145 Method method = jvf.getMethod(); | |
146 if (method.isNative() || ! method.hasLocalVariableTable() || | |
147 values == null) { | |
148 return localsCache; | |
149 } | |
150 | |
151 LocalVariableTableElement[] localVars = method.getLocalVariableTable(); | |
152 int bci = getBCI(); | |
153 List visibleVars = new ArrayList(0); | |
154 for (int i = 0; i < localVars.length; i++) { | |
155 LocalVariableTableElement cur = localVars[i]; | |
156 if (cur.getStartBCI() >= bci && cur.getLength() > 0) { | |
157 visibleVars.add(cur); | |
158 } | |
159 } | |
160 | |
161 OopHandle handle = null; | |
162 ObjectHeap heap = VM.getVM().getObjectHeap(); | |
163 for (Iterator varItr = visibleVars.iterator(); varItr.hasNext();) { | |
164 LocalVariableTableElement cur = (LocalVariableTableElement) varItr.next(); | |
165 String name = method.getConstants().getSymbolAt(cur.getNameCPIndex()).asString(); | |
166 int slot = cur.getSlot(); | |
167 | |
168 String signature = method.getConstants().getSymbolAt(cur.getDescriptorCPIndex()).asString(); | |
169 BasicType variableType = BasicType.charToBasicType(signature.charAt(0)); | |
170 Object value = null; | |
171 if (variableType == BasicType.T_BOOLEAN) { | |
172 value = Boolean.valueOf(values.booleanAt(slot)); | |
173 } else if (variableType == BasicType.T_CHAR) { | |
174 value = new Character(values.charAt(slot)); | |
175 } else if (variableType == BasicType.T_FLOAT) { | |
176 value = new Float(values.floatAt(slot)); | |
177 } else if (variableType == BasicType.T_DOUBLE) { | |
178 value = new Double(values.doubleAt(slot)); | |
179 } else if (variableType == BasicType.T_BYTE) { | |
180 value = new Byte(values.byteAt(slot)); | |
181 } else if (variableType == BasicType.T_SHORT) { | |
182 value = new Short(values.shortAt(slot)); | |
183 } else if (variableType == BasicType.T_INT) { | |
184 value = new Integer(values.intAt(slot)); | |
185 } else if (variableType == BasicType.T_LONG) { | |
186 value = new Long(values.longAt(slot)); | |
187 } else if (variableType == BasicType.T_OBJECT || | |
188 variableType == BasicType.T_ARRAY) { | |
189 handle = values.oopHandleAt(slot); | |
190 value = factory.newJSJavaObject(heap.newOop(handle)); | |
191 } else { | |
192 // ignore | |
193 } | |
194 map.put(name, value); | |
195 } | |
196 } | |
197 return localsCache; | |
198 } | |
199 | |
200 private JSJavaObject getThisObject() { | |
201 Method method = jvf.getMethod(); | |
202 if (method.isStatic()) { | |
203 return null; | |
204 } | |
205 StackValueCollection values = jvf.getLocals(); | |
206 if (values != null) { | |
207 // 'this' at index 0. | |
208 OopHandle handle = values.oopHandleAt(0); | |
209 ObjectHeap heap = VM.getVM().getObjectHeap(); | |
210 return factory.newJSJavaObject(heap.newOop(handle)); | |
211 } else { | |
212 // can't get locals, return null. | |
213 return null; | |
214 } | |
215 } | |
216 | |
217 private JSJavaThread getThread() { | |
218 return factory.newJSJavaThread(jvf.getThread()); | |
219 } | |
220 | |
221 private final JavaVFrame jvf; | |
222 private final JSJavaFactory factory; | |
223 private JSMap localsCache; | |
224 } |