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1
34
35 package org.logicalcobwebs.asm.util;
36
37 import org.logicalcobwebs.asm.Label;
38 import org.logicalcobwebs.asm.Attribute;
39
40 import java.util.HashMap  ;
41
42
46
47 public class DumpCodeVisitor extends PrintCodeVisitor {
48
49
52
53 private final HashMap labelNames;
54
55
58
59 public DumpCodeVisitor () {
60 this.labelNames = new HashMap ();
61 }
62
63 public void printInsn (final int opcode) {
64 buf.append("cv.visitInsn(").
65 append(OPCODES[opcode]).
66 append(");\n");
67 }
68
69 public void printIntInsn (final int opcode, final int operand) {
70 buf.append("cv.visitIntInsn(").
71 append(OPCODES[opcode]).
72 append(", ").
73 append(operand).
74 append(");\n");
75 }
76
77 public void printVarInsn (final int opcode, final int var) {
78 buf.append("cv.visitVarInsn(").
79 append(OPCODES[opcode]).
80 append(", ").
81 append(var).
82 append(");\n");
83 }
84
85 public void printTypeInsn (final int opcode, final String desc) {
86 buf.append("cv.visitTypeInsn(").
87 append(OPCODES[opcode]).
88 append(", ");
89 DumpClassVisitor.appendConstant(buf, desc);
90 buf.append(");\n");
91 }
92
93 public void printFieldInsn (
94 final int opcode,
95 final String owner,
96 final String name,
97 final String desc)
98 {
99 buf.append("cv.visitFieldInsn(")
100 .append(OPCODES[opcode])
101 .append(", ");
102 DumpClassVisitor.appendConstant(buf, owner);
103 buf.append(", ");
104 DumpClassVisitor.appendConstant(buf, name);
105 buf.append(", ");
106 DumpClassVisitor.appendConstant(buf, desc);
107 buf.append(");\n");
108 }
109
110 public void printMethodInsn (
111 final int opcode,
112 final String owner,
113 final String name,
114 final String desc)
115 {
116 buf.append("cv.visitMethodInsn(")
117 .append(OPCODES[opcode])
118 .append(", ");
119 DumpClassVisitor.appendConstant(buf, owner);
120 buf.append(", ");
121 DumpClassVisitor.appendConstant(buf, name);
122 buf.append(", ");
123 DumpClassVisitor.appendConstant(buf, desc);
124 buf.append(");\n");
125 }
126
127 public void printJumpInsn (final int opcode, final Label label) {
128 declareLabel(label);
129 buf.append("cv.visitJumpInsn(")
130 .append(OPCODES[opcode])
131 .append(", ");
132 appendLabel(label);
133 buf.append(");\n");
134 }
135
136 public void printLabel (final Label label) {
137 declareLabel(label);
138 buf.append("cv.visitLabel(");
139 appendLabel(label);
140 buf.append(");\n");
141 }
142
143 public void printLdcInsn (final Object cst) {
144 buf.append("cv.visitLdcInsn(");
145 DumpClassVisitor.appendConstant(buf, cst);
146 buf.append(");\n");
147 }
148
149 public void printIincInsn (final int var, final int increment) {
150 buf.append("cv.visitIincInsn(")
151 .append(var)
152 .append(", ")
153 .append(increment)
154 .append(");\n");
155 }
156
157 public void printTableSwitchInsn (
158 final int min,
159 final int max,
160 final Label dflt,
161 final Label labels[])
162 {
163 for (int i = 0; i < labels.length; ++i) {
164 declareLabel(labels[i]);
165 }
166 declareLabel(dflt);
167
168 buf.append("cv.visitTableSwitchInsn(")
169 .append(min)
170 .append(", ")
171 .append(max)
172 .append(", ");
173 appendLabel(dflt);
174 buf.append(", new Label[] {");
175 for (int i = 0; i < labels.length; ++i) {
176 buf.append(i == 0 ? " " : ", ");
177 appendLabel(labels[i]);
178 }
179 buf.append(" });\n");
180 }
181
182 public void printLookupSwitchInsn (
183 final Label dflt,
184 final int keys[],
185 final Label labels[])
186 {
187 for (int i = 0; i < labels.length; ++i) {
188 declareLabel(labels[i]);
189 }
190 declareLabel(dflt);
191
192 buf.append("cv.visitLookupSwitchInsn(");
193 appendLabel(dflt);
194 buf.append(", new int[] {");
195 for (int i = 0; i < keys.length; ++i) {
196 buf.append(i == 0 ? " " : ", ").append(keys[i]);
197 }
198 buf.append(" }, new Label[] {");
199 for (int i = 0; i < labels.length; ++i) {
200 buf.append(i == 0 ? " " : ", ");
201 appendLabel(labels[i]);
202 }
203 buf.append(" });\n");
204 }
205
206 public void printMultiANewArrayInsn (final String desc, final int dims) {
207 buf.append("cv.visitMultiANewArrayInsn(");
208 DumpClassVisitor.appendConstant(buf, desc);
209 buf.append(", ")
210 .append(dims)
211 .append(");\n");
212 }
213
214 public void printTryCatchBlock (
215 final Label start,
216 final Label end,
217 final Label handler,
218 final String type)
219 {
220 buf.append("cv.visitTryCatchBlock(");
221 appendLabel(start);
222 buf.append(", ");
223 appendLabel(end);
224 buf.append(", ");
225 appendLabel(handler);
226 buf.append(", ");
227 DumpClassVisitor.appendConstant(buf, type);
228 buf.append(");\n");
229 }
230
231 public void printMaxs (final int maxStack, final int maxLocals) {
232 buf.append("cv.visitMaxs(")
233 .append(maxStack)
234 .append(", ")
235 .append(maxLocals)
236 .append(");\n");
237 }
238
239 public void printLocalVariable (
240 final String name,
241 final String desc,
242 final Label start,
243 final Label end,
244 final int index)
245 {
246 buf.append("cv.visitLocalVariable(");
247 DumpClassVisitor.appendConstant(buf, name);
248 buf.append(", ");
249 DumpClassVisitor.appendConstant(buf, desc);
250 buf.append(", ");
251 appendLabel(start);
252 buf.append(", ");
253 appendLabel(end);
254 buf.append(", ").append(index).append(");\n");
255 }
256
257 public void printLineNumber (final int line, final Label start) {
258 buf.append("cv.visitLineNumber(")
259 .append(line)
260 .append(", ");
261 appendLabel(start);
262 buf.append(");\n");
263 }
264
265 public void printAttribute (final Attribute attr) {
266 buf.append("// WARNING! skipped a non standard code attribute of type \"");
267 buf.append(attr.type);
268 buf.append("\"\n");
269 }
270
271
278
279 private void declareLabel (final Label l) {
280 String name = (String )labelNames.get(l);
281 if (name == null) {
282 name = "l" + labelNames.size();
283 labelNames.put(l, name);
284 buf.append("Label ")
285 .append(name)
286 .append(" = new Label();\n");
287 }
288 }
289
290
297
298 private void appendLabel (final Label l) {
299 buf.append((String )labelNames.get(l));
300 }
301 }
302 |
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