jaroslav@0
|
1 |
/*
|
jaroslav@0
|
2 |
Java 4 Browser Bytecode Translator
|
jaroslav@0
|
3 |
Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
|
jaroslav@0
|
4 |
|
jaroslav@0
|
5 |
This program is free software: you can redistribute it and/or modify
|
jaroslav@0
|
6 |
it under the terms of the GNU General Public License as published by
|
jaroslav@0
|
7 |
the Free Software Foundation, version 2 of the License.
|
jaroslav@0
|
8 |
|
jaroslav@0
|
9 |
This program is distributed in the hope that it will be useful,
|
jaroslav@0
|
10 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
jaroslav@0
|
11 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
jaroslav@0
|
12 |
GNU General Public License for more details.
|
jaroslav@0
|
13 |
|
jaroslav@0
|
14 |
You should have received a copy of the GNU General Public License
|
jaroslav@0
|
15 |
along with this program. Look for COPYING file in the top folder.
|
jaroslav@0
|
16 |
If not, see http://opensource.org/licenses/GPL-2.0.
|
jaroslav@0
|
17 |
*/
|
jaroslav@22
|
18 |
package org.apidesign.vm4brwsr;
|
jaroslav@0
|
19 |
|
jaroslav@0
|
20 |
import java.io.IOException;
|
jaroslav@0
|
21 |
import java.io.InputStream;
|
jaroslav@21
|
22 |
import java.util.ArrayList;
|
jaroslav@18
|
23 |
import java.util.Collection;
|
jaroslav@0
|
24 |
import java.util.List;
|
jaroslav@2
|
25 |
import static org.netbeans.modules.classfile.ByteCodes.*;
|
jaroslav@8
|
26 |
import org.netbeans.modules.classfile.CPClassInfo;
|
jaroslav@8
|
27 |
import org.netbeans.modules.classfile.CPEntry;
|
jaroslav@8
|
28 |
import org.netbeans.modules.classfile.CPFieldInfo;
|
jaroslav@4
|
29 |
import org.netbeans.modules.classfile.CPMethodInfo;
|
jaroslav@21
|
30 |
import org.netbeans.modules.classfile.CPStringInfo;
|
jaroslav@0
|
31 |
import org.netbeans.modules.classfile.ClassFile;
|
jaroslav@13
|
32 |
import org.netbeans.modules.classfile.ClassName;
|
jaroslav@0
|
33 |
import org.netbeans.modules.classfile.Code;
|
jaroslav@0
|
34 |
import org.netbeans.modules.classfile.Method;
|
jaroslav@0
|
35 |
import org.netbeans.modules.classfile.Parameter;
|
jaroslav@9
|
36 |
import org.netbeans.modules.classfile.Variable;
|
jaroslav@0
|
37 |
|
jaroslav@0
|
38 |
/** Translator of the code inside class files to JavaScript.
|
jaroslav@0
|
39 |
*
|
jaroslav@0
|
40 |
* @author Jaroslav Tulach <jtulach@netbeans.org>
|
jaroslav@0
|
41 |
*/
|
jaroslav@0
|
42 |
public final class ByteCodeToJavaScript {
|
jaroslav@0
|
43 |
private final ClassFile jc;
|
jaroslav@0
|
44 |
private final Appendable out;
|
jaroslav@18
|
45 |
private final Collection<? super String> references;
|
jaroslav@0
|
46 |
|
jaroslav@18
|
47 |
private ByteCodeToJavaScript(
|
jaroslav@18
|
48 |
ClassFile jc, Appendable out, Collection<? super String> references
|
jaroslav@18
|
49 |
) {
|
jaroslav@0
|
50 |
this.jc = jc;
|
jaroslav@0
|
51 |
this.out = out;
|
jaroslav@18
|
52 |
this.references = references;
|
jaroslav@0
|
53 |
}
|
jaroslav@18
|
54 |
|
jaroslav@18
|
55 |
/**
|
jaroslav@18
|
56 |
* Converts a given class file to a JavaScript version.
|
jaroslav@18
|
57 |
*
|
jaroslav@0
|
58 |
* @param classFile input stream with code of the .class file
|
jaroslav@0
|
59 |
* @param out a {@link StringBuilder} or similar to generate the output to
|
jaroslav@18
|
60 |
* @param references a write only collection where the system adds list of
|
jaroslav@18
|
61 |
* other classes that were referenced and should be loaded in order the
|
jaroslav@18
|
62 |
* generated JavaScript code works properly. The names are in internal
|
jaroslav@18
|
63 |
* JVM form so String is <code>java/lang/String</code>. Can be <code>null</code>
|
jaroslav@18
|
64 |
* if one is not interested in knowing references
|
jaroslav@0
|
65 |
* @throws IOException if something goes wrong during read or write or translating
|
jaroslav@0
|
66 |
*/
|
jaroslav@18
|
67 |
|
jaroslav@18
|
68 |
public static void compile(
|
jaroslav@18
|
69 |
InputStream classFile, Appendable out,
|
jaroslav@18
|
70 |
Collection<? super String> references
|
jaroslav@18
|
71 |
) throws IOException {
|
jaroslav@0
|
72 |
ClassFile jc = new ClassFile(classFile, true);
|
jaroslav@18
|
73 |
ByteCodeToJavaScript compiler = new ByteCodeToJavaScript(
|
jaroslav@18
|
74 |
jc, out, references
|
jaroslav@18
|
75 |
);
|
jaroslav@21
|
76 |
List<String> toInitilize = new ArrayList<String>();
|
jaroslav@0
|
77 |
for (Method m : jc.getMethods()) {
|
jaroslav@0
|
78 |
if (m.isStatic()) {
|
jaroslav@21
|
79 |
compiler.generateStaticMethod(m, toInitilize);
|
jaroslav@10
|
80 |
} else {
|
jaroslav@10
|
81 |
compiler.generateInstanceMethod(m);
|
jaroslav@0
|
82 |
}
|
jaroslav@0
|
83 |
}
|
jaroslav@9
|
84 |
for (Variable v : jc.getVariables()) {
|
jaroslav@9
|
85 |
if (v.isStatic()) {
|
jaroslav@9
|
86 |
compiler.generateStaticField(v);
|
jaroslav@9
|
87 |
}
|
jaroslav@9
|
88 |
}
|
jaroslav@10
|
89 |
|
jaroslav@18
|
90 |
final String className = jc.getName().getInternalName().replace('/', '_');
|
jaroslav@13
|
91 |
out.append("\nfunction ").append(className);
|
jaroslav@10
|
92 |
out.append("() {");
|
jaroslav@10
|
93 |
for (Variable v : jc.getVariables()) {
|
jaroslav@10
|
94 |
if (!v.isStatic()) {
|
jaroslav@10
|
95 |
out.append("\n this." + v.getName() + " = 0;");
|
jaroslav@10
|
96 |
}
|
jaroslav@10
|
97 |
}
|
jaroslav@10
|
98 |
out.append("\n}");
|
jaroslav@13
|
99 |
ClassName sc = jc.getSuperClass();
|
jaroslav@13
|
100 |
if (sc != null) {
|
jaroslav@21
|
101 |
out.append("\n").append(className)
|
jaroslav@39
|
102 |
.append(".prototype = new ").append(sc.getInternalName().replace('/', '_')).append(';');
|
jaroslav@13
|
103 |
}
|
jaroslav@38
|
104 |
for (Method m : jc.getMethods()) {
|
jaroslav@38
|
105 |
if (!m.isStatic() && !m.isPrivate() && !m.getName().contains("<init>")) {
|
jaroslav@38
|
106 |
compiler.generateMethodReference("\n" + className + ".prototype.", m);
|
jaroslav@38
|
107 |
}
|
jaroslav@38
|
108 |
}
|
jaroslav@40
|
109 |
out.append("\n" + className + ".prototype.$instOf_").append(className).append(" = true;");
|
jaroslav@40
|
110 |
for (ClassName superInterface : jc.getInterfaces()) {
|
jaroslav@40
|
111 |
out.append("\n" + className + ".prototype.$instOf_").append(superInterface.getInternalName().replace('/', '_')).append(" = true;");
|
jaroslav@40
|
112 |
}
|
jaroslav@21
|
113 |
for (String init : toInitilize) {
|
jaroslav@21
|
114 |
out.append("\n").append(init).append("();");
|
jaroslav@21
|
115 |
}
|
jaroslav@0
|
116 |
}
|
jaroslav@21
|
117 |
private void generateStaticMethod(Method m, List<String> toInitilize) throws IOException {
|
jaroslav@21
|
118 |
final String mn = findMethodName(m);
|
jaroslav@1
|
119 |
out.append("\nfunction ").append(
|
jaroslav@18
|
120 |
jc.getName().getInternalName().replace('/', '_')
|
jaroslav@21
|
121 |
).append('_').append(mn);
|
jaroslav@21
|
122 |
if (mn.equals("classV")) {
|
jaroslav@21
|
123 |
toInitilize.add(jc.getName().getInternalName().replace('/', '_') + '_' + mn);
|
jaroslav@21
|
124 |
}
|
jaroslav@0
|
125 |
out.append('(');
|
jaroslav@0
|
126 |
String space = "";
|
jaroslav@10
|
127 |
List<Parameter> args = m.getParameters();
|
jaroslav@2
|
128 |
for (int index = 0, i = 0; i < args.size(); i++) {
|
jaroslav@0
|
129 |
out.append(space);
|
jaroslav@2
|
130 |
out.append("arg").append(String.valueOf(index));
|
jaroslav@0
|
131 |
space = ",";
|
jaroslav@32
|
132 |
final String desc = findDescriptor(args.get(i).getDescriptor());
|
jaroslav@3
|
133 |
if ("D".equals(desc) || "J".equals(desc)) {
|
jaroslav@2
|
134 |
index += 2;
|
jaroslav@2
|
135 |
} else {
|
jaroslav@2
|
136 |
index++;
|
jaroslav@2
|
137 |
}
|
jaroslav@0
|
138 |
}
|
jaroslav@5
|
139 |
out.append(") {").append("\n");
|
jaroslav@0
|
140 |
final Code code = m.getCode();
|
jaroslav@18
|
141 |
if (code != null) {
|
jaroslav@18
|
142 |
int len = code.getMaxLocals();
|
jaroslav@18
|
143 |
for (int index = args.size(), i = args.size(); i < len; i++) {
|
jaroslav@18
|
144 |
out.append(" var ");
|
jaroslav@18
|
145 |
out.append("arg").append(String.valueOf(i)).append(";\n");
|
jaroslav@18
|
146 |
}
|
jaroslav@21
|
147 |
out.append(" var stack = new Array();\n");
|
jaroslav@18
|
148 |
produceCode(code.getByteCodes());
|
jaroslav@18
|
149 |
} else {
|
jaroslav@18
|
150 |
out.append(" /* no code found for ").append(m.getTypeSignature()).append(" */\n");
|
jaroslav@0
|
151 |
}
|
jaroslav@10
|
152 |
out.append("}");
|
jaroslav@10
|
153 |
}
|
jaroslav@10
|
154 |
|
jaroslav@38
|
155 |
private void generateMethodReference(String prefix, Method m) throws IOException {
|
jaroslav@12
|
156 |
final String name = findMethodName(m);
|
jaroslav@38
|
157 |
out.append(prefix).append(name).append(" = ")
|
jaroslav@18
|
158 |
.append(jc.getName().getInternalName().replace('/', '_'))
|
jaroslav@12
|
159 |
.append('_').append(name).append(";");
|
jaroslav@12
|
160 |
}
|
jaroslav@12
|
161 |
|
jaroslav@10
|
162 |
private void generateInstanceMethod(Method m) throws IOException {
|
jaroslav@10
|
163 |
out.append("\nfunction ").append(
|
jaroslav@18
|
164 |
jc.getName().getInternalName().replace('/', '_')
|
jaroslav@10
|
165 |
).append('_').append(findMethodName(m));
|
jaroslav@10
|
166 |
out.append("(arg0");
|
jaroslav@10
|
167 |
String space = ",";
|
jaroslav@10
|
168 |
List<Parameter> args = m.getParameters();
|
jaroslav@10
|
169 |
for (int index = 1, i = 0; i < args.size(); i++) {
|
jaroslav@10
|
170 |
out.append(space);
|
jaroslav@10
|
171 |
out.append("arg").append(String.valueOf(index));
|
jaroslav@32
|
172 |
final String desc = findDescriptor(args.get(i).getDescriptor());
|
jaroslav@10
|
173 |
if ("D".equals(desc) || "J".equals(desc)) {
|
jaroslav@10
|
174 |
index += 2;
|
jaroslav@10
|
175 |
} else {
|
jaroslav@10
|
176 |
index++;
|
jaroslav@10
|
177 |
}
|
jaroslav@10
|
178 |
}
|
jaroslav@10
|
179 |
out.append(") {").append("\n");
|
jaroslav@10
|
180 |
final Code code = m.getCode();
|
jaroslav@18
|
181 |
if (code != null) {
|
jaroslav@18
|
182 |
int len = code.getMaxLocals();
|
jaroslav@18
|
183 |
for (int index = args.size(), i = args.size(); i < len; i++) {
|
jaroslav@18
|
184 |
out.append(" var ");
|
jaroslav@18
|
185 |
out.append("arg").append(String.valueOf(i + 1)).append(";\n");
|
jaroslav@18
|
186 |
}
|
jaroslav@18
|
187 |
out.append(";\n var stack = new Array(");
|
jaroslav@18
|
188 |
out.append(Integer.toString(code.getMaxStack()));
|
jaroslav@18
|
189 |
out.append(");\n");
|
jaroslav@18
|
190 |
produceCode(code.getByteCodes());
|
jaroslav@18
|
191 |
} else {
|
jaroslav@18
|
192 |
out.append(" /* no code found for ").append(m.getTypeSignature()).append(" */\n");
|
jaroslav@10
|
193 |
}
|
jaroslav@0
|
194 |
out.append("}");
|
jaroslav@0
|
195 |
}
|
jaroslav@0
|
196 |
|
jaroslav@0
|
197 |
private void produceCode(byte[] byteCodes) throws IOException {
|
jaroslav@10
|
198 |
out.append("\n var gt = 0;\n for(;;) switch(gt) {\n");
|
jaroslav@0
|
199 |
for (int i = 0; i < byteCodes.length; i++) {
|
jaroslav@0
|
200 |
int prev = i;
|
jaroslav@10
|
201 |
out.append(" case " + i).append(": ");
|
jaroslav@0
|
202 |
final int c = (byteCodes[i] + 256) % 256;
|
jaroslav@0
|
203 |
switch (c) {
|
jaroslav@2
|
204 |
case bc_aload_0:
|
jaroslav@2
|
205 |
case bc_iload_0:
|
jaroslav@2
|
206 |
case bc_lload_0:
|
jaroslav@2
|
207 |
case bc_fload_0:
|
jaroslav@2
|
208 |
case bc_dload_0:
|
jaroslav@0
|
209 |
out.append("stack.push(arg0);");
|
jaroslav@0
|
210 |
break;
|
jaroslav@2
|
211 |
case bc_aload_1:
|
jaroslav@2
|
212 |
case bc_iload_1:
|
jaroslav@2
|
213 |
case bc_lload_1:
|
jaroslav@2
|
214 |
case bc_fload_1:
|
jaroslav@2
|
215 |
case bc_dload_1:
|
jaroslav@0
|
216 |
out.append("stack.push(arg1);");
|
jaroslav@0
|
217 |
break;
|
jaroslav@2
|
218 |
case bc_aload_2:
|
jaroslav@2
|
219 |
case bc_iload_2:
|
jaroslav@2
|
220 |
case bc_lload_2:
|
jaroslav@2
|
221 |
case bc_fload_2:
|
jaroslav@2
|
222 |
case bc_dload_2:
|
jaroslav@2
|
223 |
out.append("stack.push(arg2);");
|
jaroslav@2
|
224 |
break;
|
jaroslav@3
|
225 |
case bc_aload_3:
|
jaroslav@3
|
226 |
case bc_iload_3:
|
jaroslav@3
|
227 |
case bc_lload_3:
|
jaroslav@3
|
228 |
case bc_fload_3:
|
jaroslav@3
|
229 |
case bc_dload_3:
|
jaroslav@3
|
230 |
out.append("stack.push(arg3);");
|
jaroslav@3
|
231 |
break;
|
jaroslav@3
|
232 |
case bc_iload:
|
jaroslav@3
|
233 |
case bc_lload:
|
jaroslav@3
|
234 |
case bc_fload:
|
jaroslav@3
|
235 |
case bc_dload:
|
jaroslav@3
|
236 |
case bc_aload: {
|
jaroslav@3
|
237 |
final int indx = (byteCodes[++i] + 256) % 256;
|
jaroslav@3
|
238 |
out.append("stack.push(arg").append(indx + ");");
|
jaroslav@3
|
239 |
break;
|
jaroslav@3
|
240 |
}
|
jaroslav@31
|
241 |
case bc_istore:
|
jaroslav@31
|
242 |
case bc_lstore:
|
jaroslav@31
|
243 |
case bc_fstore:
|
jaroslav@31
|
244 |
case bc_dstore:
|
jaroslav@31
|
245 |
case bc_astore: {
|
jaroslav@31
|
246 |
final int indx = (byteCodes[++i] + 256) % 256;
|
jaroslav@31
|
247 |
out.append("arg" + indx).append(" = stack.pop()");
|
jaroslav@31
|
248 |
break;
|
jaroslav@31
|
249 |
}
|
jaroslav@8
|
250 |
case bc_astore_0:
|
jaroslav@5
|
251 |
case bc_istore_0:
|
jaroslav@5
|
252 |
case bc_lstore_0:
|
jaroslav@5
|
253 |
case bc_fstore_0:
|
jaroslav@5
|
254 |
case bc_dstore_0:
|
jaroslav@5
|
255 |
out.append("arg0 = stack.pop();");
|
jaroslav@5
|
256 |
break;
|
jaroslav@8
|
257 |
case bc_astore_1:
|
jaroslav@5
|
258 |
case bc_istore_1:
|
jaroslav@5
|
259 |
case bc_lstore_1:
|
jaroslav@5
|
260 |
case bc_fstore_1:
|
jaroslav@5
|
261 |
case bc_dstore_1:
|
jaroslav@5
|
262 |
out.append("arg1 = stack.pop();");
|
jaroslav@5
|
263 |
break;
|
jaroslav@8
|
264 |
case bc_astore_2:
|
jaroslav@5
|
265 |
case bc_istore_2:
|
jaroslav@5
|
266 |
case bc_lstore_2:
|
jaroslav@5
|
267 |
case bc_fstore_2:
|
jaroslav@5
|
268 |
case bc_dstore_2:
|
jaroslav@5
|
269 |
out.append("arg2 = stack.pop();");
|
jaroslav@5
|
270 |
break;
|
jaroslav@8
|
271 |
case bc_astore_3:
|
jaroslav@5
|
272 |
case bc_istore_3:
|
jaroslav@5
|
273 |
case bc_lstore_3:
|
jaroslav@5
|
274 |
case bc_fstore_3:
|
jaroslav@5
|
275 |
case bc_dstore_3:
|
jaroslav@5
|
276 |
out.append("arg3 = stack.pop();");
|
jaroslav@5
|
277 |
break;
|
jaroslav@2
|
278 |
case bc_iadd:
|
jaroslav@2
|
279 |
case bc_ladd:
|
jaroslav@2
|
280 |
case bc_fadd:
|
jaroslav@2
|
281 |
case bc_dadd:
|
jaroslav@0
|
282 |
out.append("stack.push(stack.pop() + stack.pop());");
|
jaroslav@0
|
283 |
break;
|
jaroslav@2
|
284 |
case bc_isub:
|
jaroslav@2
|
285 |
case bc_lsub:
|
jaroslav@2
|
286 |
case bc_fsub:
|
jaroslav@2
|
287 |
case bc_dsub:
|
jaroslav@3
|
288 |
out.append("{ var tmp = stack.pop(); stack.push(stack.pop() - tmp); }");
|
jaroslav@2
|
289 |
break;
|
jaroslav@2
|
290 |
case bc_imul:
|
jaroslav@2
|
291 |
case bc_lmul:
|
jaroslav@2
|
292 |
case bc_fmul:
|
jaroslav@2
|
293 |
case bc_dmul:
|
jaroslav@1
|
294 |
out.append("stack.push(stack.pop() * stack.pop());");
|
jaroslav@1
|
295 |
break;
|
jaroslav@3
|
296 |
case bc_idiv:
|
jaroslav@3
|
297 |
case bc_ldiv:
|
jaroslav@3
|
298 |
out.append("{ var tmp = stack.pop(); stack.push(Math.floor(stack.pop() / tmp)); }");
|
jaroslav@3
|
299 |
break;
|
jaroslav@3
|
300 |
case bc_fdiv:
|
jaroslav@3
|
301 |
case bc_ddiv:
|
jaroslav@3
|
302 |
out.append("{ var tmp = stack.pop(); stack.push(stack.pop() / tmp); }");
|
jaroslav@3
|
303 |
break;
|
jaroslav@7
|
304 |
case bc_iand:
|
jaroslav@7
|
305 |
case bc_land:
|
jaroslav@7
|
306 |
out.append("stack.push(stack.pop() & stack.pop());");
|
jaroslav@7
|
307 |
break;
|
jaroslav@7
|
308 |
case bc_ior:
|
jaroslav@7
|
309 |
case bc_lor:
|
jaroslav@7
|
310 |
out.append("stack.push(stack.pop() | stack.pop());");
|
jaroslav@7
|
311 |
break;
|
jaroslav@6
|
312 |
case bc_ixor:
|
jaroslav@6
|
313 |
case bc_lxor:
|
jaroslav@6
|
314 |
out.append("stack.push(stack.pop() ^ stack.pop());");
|
jaroslav@6
|
315 |
break;
|
jaroslav@5
|
316 |
case bc_iinc: {
|
jaroslav@5
|
317 |
final int varIndx = (byteCodes[++i] + 256) % 256;
|
jaroslav@5
|
318 |
final int incrBy = (byteCodes[++i] + 256) % 256;
|
jaroslav@5
|
319 |
if (incrBy == 1) {
|
jaroslav@5
|
320 |
out.append("arg" + varIndx).append("++;");
|
jaroslav@5
|
321 |
} else {
|
jaroslav@5
|
322 |
out.append("arg" + varIndx).append(" += " + incrBy).append(";");
|
jaroslav@5
|
323 |
}
|
jaroslav@5
|
324 |
break;
|
jaroslav@5
|
325 |
}
|
jaroslav@10
|
326 |
case bc_return:
|
jaroslav@10
|
327 |
out.append("return;");
|
jaroslav@10
|
328 |
break;
|
jaroslav@2
|
329 |
case bc_ireturn:
|
jaroslav@2
|
330 |
case bc_lreturn:
|
jaroslav@2
|
331 |
case bc_freturn:
|
jaroslav@2
|
332 |
case bc_dreturn:
|
jaroslav@10
|
333 |
case bc_areturn:
|
jaroslav@0
|
334 |
out.append("return stack.pop();");
|
jaroslav@1
|
335 |
break;
|
jaroslav@2
|
336 |
case bc_i2l:
|
jaroslav@2
|
337 |
case bc_i2f:
|
jaroslav@2
|
338 |
case bc_i2d:
|
jaroslav@2
|
339 |
case bc_l2i:
|
jaroslav@3
|
340 |
// max int check?
|
jaroslav@2
|
341 |
case bc_l2f:
|
jaroslav@2
|
342 |
case bc_l2d:
|
jaroslav@3
|
343 |
case bc_f2d:
|
jaroslav@3
|
344 |
case bc_d2f:
|
jaroslav@3
|
345 |
out.append("/* number conversion */");
|
jaroslav@3
|
346 |
break;
|
jaroslav@2
|
347 |
case bc_f2i:
|
jaroslav@2
|
348 |
case bc_f2l:
|
jaroslav@2
|
349 |
case bc_d2i:
|
jaroslav@2
|
350 |
case bc_d2l:
|
jaroslav@3
|
351 |
out.append("stack.push(Math.floor(stack.pop()));");
|
jaroslav@3
|
352 |
break;
|
jaroslav@2
|
353 |
case bc_i2b:
|
jaroslav@2
|
354 |
case bc_i2c:
|
jaroslav@2
|
355 |
case bc_i2s:
|
jaroslav@2
|
356 |
out.append("/* number conversion */");
|
jaroslav@2
|
357 |
break;
|
jaroslav@46
|
358 |
case bc_aconst_null:
|
jaroslav@46
|
359 |
out.append("stack.push(null);");
|
jaroslav@46
|
360 |
break;
|
jaroslav@4
|
361 |
case bc_iconst_0:
|
jaroslav@4
|
362 |
case bc_dconst_0:
|
jaroslav@4
|
363 |
case bc_lconst_0:
|
jaroslav@4
|
364 |
case bc_fconst_0:
|
jaroslav@4
|
365 |
out.append("stack.push(0);");
|
jaroslav@4
|
366 |
break;
|
jaroslav@4
|
367 |
case bc_iconst_1:
|
jaroslav@4
|
368 |
case bc_lconst_1:
|
jaroslav@4
|
369 |
case bc_fconst_1:
|
jaroslav@4
|
370 |
case bc_dconst_1:
|
jaroslav@4
|
371 |
out.append("stack.push(1);");
|
jaroslav@4
|
372 |
break;
|
jaroslav@4
|
373 |
case bc_iconst_2:
|
jaroslav@4
|
374 |
case bc_fconst_2:
|
jaroslav@4
|
375 |
out.append("stack.push(2);");
|
jaroslav@4
|
376 |
break;
|
jaroslav@4
|
377 |
case bc_iconst_3:
|
jaroslav@4
|
378 |
out.append("stack.push(3);");
|
jaroslav@4
|
379 |
break;
|
jaroslav@4
|
380 |
case bc_iconst_4:
|
jaroslav@4
|
381 |
out.append("stack.push(4);");
|
jaroslav@4
|
382 |
break;
|
jaroslav@4
|
383 |
case bc_iconst_5:
|
jaroslav@4
|
384 |
out.append("stack.push(5);");
|
jaroslav@4
|
385 |
break;
|
jaroslav@20
|
386 |
case bc_ldc: {
|
jaroslav@21
|
387 |
int indx = byteCodes[++i];
|
jaroslav@20
|
388 |
CPEntry entry = jc.getConstantPool().get(indx);
|
jaroslav@21
|
389 |
String v = encodeConstant(entry);
|
jaroslav@21
|
390 |
out.append("stack.push(").append(v).append(");");
|
jaroslav@20
|
391 |
break;
|
jaroslav@20
|
392 |
}
|
jaroslav@8
|
393 |
case bc_ldc_w:
|
jaroslav@8
|
394 |
case bc_ldc2_w: {
|
jaroslav@8
|
395 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@8
|
396 |
CPEntry entry = jc.getConstantPool().get(indx);
|
jaroslav@8
|
397 |
i += 2;
|
jaroslav@21
|
398 |
String v = encodeConstant(entry);
|
jaroslav@21
|
399 |
out.append("stack.push(").append(v).append(");");
|
jaroslav@8
|
400 |
break;
|
jaroslav@8
|
401 |
}
|
jaroslav@20
|
402 |
case bc_lcmp:
|
jaroslav@20
|
403 |
case bc_fcmpl:
|
jaroslav@20
|
404 |
case bc_fcmpg:
|
jaroslav@20
|
405 |
case bc_dcmpl:
|
jaroslav@20
|
406 |
case bc_dcmpg: {
|
jaroslav@20
|
407 |
out.append("{ var delta = stack.pop() - stack.pop(); stack.push(delta < 0 ?-1 : (delta == 0 ? 0 : 1)); }");
|
jaroslav@20
|
408 |
break;
|
jaroslav@20
|
409 |
}
|
jaroslav@4
|
410 |
case bc_if_icmpeq: {
|
jaroslav@4
|
411 |
i = generateIf(byteCodes, i, "==");
|
jaroslav@4
|
412 |
break;
|
jaroslav@4
|
413 |
}
|
jaroslav@7
|
414 |
case bc_ifeq: {
|
jaroslav@7
|
415 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@7
|
416 |
out.append("if (stack.pop() == 0) { gt = " + indx);
|
jaroslav@7
|
417 |
out.append("; continue; }");
|
jaroslav@7
|
418 |
i += 2;
|
jaroslav@7
|
419 |
break;
|
jaroslav@7
|
420 |
}
|
jaroslav@20
|
421 |
case bc_ifne: {
|
jaroslav@20
|
422 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@20
|
423 |
out.append("if (stack.pop() != 0) { gt = " + indx);
|
jaroslav@20
|
424 |
out.append("; continue; }");
|
jaroslav@20
|
425 |
i += 2;
|
jaroslav@20
|
426 |
break;
|
jaroslav@20
|
427 |
}
|
jaroslav@20
|
428 |
case bc_iflt: {
|
jaroslav@20
|
429 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@20
|
430 |
out.append("if (stack.pop() < 0) { gt = " + indx);
|
jaroslav@20
|
431 |
out.append("; continue; }");
|
jaroslav@20
|
432 |
i += 2;
|
jaroslav@20
|
433 |
break;
|
jaroslav@20
|
434 |
}
|
jaroslav@20
|
435 |
case bc_ifle: {
|
jaroslav@20
|
436 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@20
|
437 |
out.append("if (stack.pop() <= 0) { gt = " + indx);
|
jaroslav@20
|
438 |
out.append("; continue; }");
|
jaroslav@20
|
439 |
i += 2;
|
jaroslav@20
|
440 |
break;
|
jaroslav@20
|
441 |
}
|
jaroslav@20
|
442 |
case bc_ifgt: {
|
jaroslav@20
|
443 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@20
|
444 |
out.append("if (stack.pop() > 0) { gt = " + indx);
|
jaroslav@20
|
445 |
out.append("; continue; }");
|
jaroslav@20
|
446 |
i += 2;
|
jaroslav@20
|
447 |
break;
|
jaroslav@20
|
448 |
}
|
jaroslav@20
|
449 |
case bc_ifge: {
|
jaroslav@20
|
450 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@20
|
451 |
out.append("if (stack.pop() >= 0) { gt = " + indx);
|
jaroslav@20
|
452 |
out.append("; continue; }");
|
jaroslav@20
|
453 |
i += 2;
|
jaroslav@20
|
454 |
break;
|
jaroslav@20
|
455 |
}
|
jaroslav@16
|
456 |
case bc_ifnonnull: {
|
jaroslav@16
|
457 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@16
|
458 |
out.append("if (stack.pop()) { gt = " + indx);
|
jaroslav@16
|
459 |
out.append("; continue; }");
|
jaroslav@16
|
460 |
i += 2;
|
jaroslav@16
|
461 |
break;
|
jaroslav@16
|
462 |
}
|
jaroslav@16
|
463 |
case bc_ifnull: {
|
jaroslav@16
|
464 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@16
|
465 |
out.append("if (!stack.pop()) { gt = " + indx);
|
jaroslav@16
|
466 |
out.append("; continue; }");
|
jaroslav@16
|
467 |
i += 2;
|
jaroslav@16
|
468 |
break;
|
jaroslav@16
|
469 |
}
|
jaroslav@4
|
470 |
case bc_if_icmpne:
|
jaroslav@4
|
471 |
i = generateIf(byteCodes, i, "!=");
|
jaroslav@4
|
472 |
break;
|
jaroslav@4
|
473 |
case bc_if_icmplt:
|
jaroslav@4
|
474 |
i = generateIf(byteCodes, i, ">");
|
jaroslav@4
|
475 |
break;
|
jaroslav@4
|
476 |
case bc_if_icmple:
|
jaroslav@4
|
477 |
i = generateIf(byteCodes, i, ">=");
|
jaroslav@4
|
478 |
break;
|
jaroslav@4
|
479 |
case bc_if_icmpgt:
|
jaroslav@4
|
480 |
i = generateIf(byteCodes, i, "<");
|
jaroslav@4
|
481 |
break;
|
jaroslav@4
|
482 |
case bc_if_icmpge:
|
jaroslav@4
|
483 |
i = generateIf(byteCodes, i, "<=");
|
jaroslav@4
|
484 |
break;
|
jaroslav@5
|
485 |
case bc_goto: {
|
jaroslav@5
|
486 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@5
|
487 |
out.append("gt = " + indx).append("; continue;");
|
jaroslav@5
|
488 |
i += 2;
|
jaroslav@5
|
489 |
break;
|
jaroslav@5
|
490 |
}
|
jaroslav@46
|
491 |
case bc_invokeinterface: {
|
jaroslav@46
|
492 |
i = invokeVirtualMethod(byteCodes, i) + 2;
|
jaroslav@46
|
493 |
break;
|
jaroslav@46
|
494 |
}
|
jaroslav@12
|
495 |
case bc_invokevirtual:
|
jaroslav@12
|
496 |
i = invokeVirtualMethod(byteCodes, i);
|
jaroslav@12
|
497 |
break;
|
jaroslav@10
|
498 |
case bc_invokespecial:
|
jaroslav@10
|
499 |
i = invokeStaticMethod(byteCodes, i, false);
|
jaroslav@4
|
500 |
break;
|
jaroslav@10
|
501 |
case bc_invokestatic:
|
jaroslav@10
|
502 |
i = invokeStaticMethod(byteCodes, i, true);
|
jaroslav@10
|
503 |
break;
|
jaroslav@8
|
504 |
case bc_new: {
|
jaroslav@8
|
505 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@8
|
506 |
CPClassInfo ci = jc.getConstantPool().getClass(indx);
|
jaroslav@8
|
507 |
out.append("stack.push(");
|
jaroslav@18
|
508 |
out.append("new ").append(ci.getClassName().getInternalName().replace('/','_'));
|
jaroslav@10
|
509 |
out.append(");");
|
jaroslav@18
|
510 |
addReference(ci.getClassName().getInternalName());
|
jaroslav@8
|
511 |
i += 2;
|
jaroslav@8
|
512 |
break;
|
jaroslav@8
|
513 |
}
|
jaroslav@21
|
514 |
case bc_newarray: {
|
jaroslav@21
|
515 |
int type = byteCodes[i++];
|
jaroslav@21
|
516 |
out.append("stack.push(new Array(stack.pop()));");
|
jaroslav@21
|
517 |
break;
|
jaroslav@21
|
518 |
}
|
jaroslav@21
|
519 |
case bc_anewarray: {
|
jaroslav@21
|
520 |
i += 2; // skip type of array
|
jaroslav@21
|
521 |
out.append("stack.push(new Array(stack.pop()));");
|
jaroslav@21
|
522 |
break;
|
jaroslav@21
|
523 |
}
|
jaroslav@21
|
524 |
case bc_arraylength:
|
jaroslav@21
|
525 |
out.append("stack.push(stack.pop().length);");
|
jaroslav@21
|
526 |
break;
|
jaroslav@21
|
527 |
case bc_iastore:
|
jaroslav@21
|
528 |
case bc_lastore:
|
jaroslav@21
|
529 |
case bc_fastore:
|
jaroslav@21
|
530 |
case bc_dastore:
|
jaroslav@21
|
531 |
case bc_aastore:
|
jaroslav@21
|
532 |
case bc_bastore:
|
jaroslav@21
|
533 |
case bc_castore:
|
jaroslav@21
|
534 |
case bc_sastore: {
|
jaroslav@21
|
535 |
out.append("{ var value = stack.pop(); var indx = stack.pop(); stack.pop()[indx] = value; }");
|
jaroslav@21
|
536 |
break;
|
jaroslav@21
|
537 |
}
|
jaroslav@21
|
538 |
case bc_iaload:
|
jaroslav@21
|
539 |
case bc_laload:
|
jaroslav@21
|
540 |
case bc_faload:
|
jaroslav@21
|
541 |
case bc_daload:
|
jaroslav@21
|
542 |
case bc_aaload:
|
jaroslav@21
|
543 |
case bc_baload:
|
jaroslav@21
|
544 |
case bc_caload:
|
jaroslav@21
|
545 |
case bc_saload: {
|
jaroslav@21
|
546 |
out.append("{ var indx = stack.pop(); stack.push(stack.pop()[indx]); }");
|
jaroslav@21
|
547 |
break;
|
jaroslav@21
|
548 |
}
|
jaroslav@8
|
549 |
case bc_dup:
|
jaroslav@8
|
550 |
out.append("stack.push(stack[stack.length - 1]);");
|
jaroslav@8
|
551 |
break;
|
jaroslav@8
|
552 |
case bc_bipush:
|
jaroslav@8
|
553 |
out.append("stack.push(" + byteCodes[++i] + ");");
|
jaroslav@8
|
554 |
break;
|
jaroslav@31
|
555 |
case bc_sipush:
|
jaroslav@31
|
556 |
out.append("stack.push(" + readIntArg(byteCodes, i) + ");");
|
jaroslav@31
|
557 |
i += 2;
|
jaroslav@31
|
558 |
break;
|
jaroslav@8
|
559 |
case bc_getfield: {
|
jaroslav@8
|
560 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@8
|
561 |
CPFieldInfo fi = (CPFieldInfo) jc.getConstantPool().get(indx);
|
jaroslav@21
|
562 |
out.append("stack.push(stack.pop().").append(fi.getFieldName()).append(");");
|
jaroslav@8
|
563 |
i += 2;
|
jaroslav@8
|
564 |
break;
|
jaroslav@8
|
565 |
}
|
jaroslav@9
|
566 |
case bc_getstatic: {
|
jaroslav@9
|
567 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@9
|
568 |
CPFieldInfo fi = (CPFieldInfo) jc.getConstantPool().get(indx);
|
jaroslav@18
|
569 |
final String in = fi.getClassName().getInternalName();
|
jaroslav@18
|
570 |
out.append("stack.push(").append(in.replace('/', '_'));
|
jaroslav@9
|
571 |
out.append('_').append(fi.getFieldName()).append(");");
|
jaroslav@9
|
572 |
i += 2;
|
jaroslav@18
|
573 |
addReference(in);
|
jaroslav@9
|
574 |
break;
|
jaroslav@9
|
575 |
}
|
jaroslav@9
|
576 |
case bc_putstatic: {
|
jaroslav@9
|
577 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@9
|
578 |
CPFieldInfo fi = (CPFieldInfo) jc.getConstantPool().get(indx);
|
jaroslav@18
|
579 |
final String in = fi.getClassName().getInternalName();
|
jaroslav@18
|
580 |
out.append(in.replace('/', '_'));
|
jaroslav@9
|
581 |
out.append('_').append(fi.getFieldName()).append(" = stack.pop();");
|
jaroslav@9
|
582 |
i += 2;
|
jaroslav@18
|
583 |
addReference(in);
|
jaroslav@9
|
584 |
break;
|
jaroslav@9
|
585 |
}
|
jaroslav@10
|
586 |
case bc_putfield: {
|
jaroslav@10
|
587 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@10
|
588 |
CPFieldInfo fi = (CPFieldInfo) jc.getConstantPool().get(indx);
|
jaroslav@10
|
589 |
out.append("{ var v = stack.pop(); stack.pop().")
|
jaroslav@10
|
590 |
.append(fi.getFieldName()).append(" = v; }");
|
jaroslav@10
|
591 |
i += 2;
|
jaroslav@10
|
592 |
break;
|
jaroslav@10
|
593 |
}
|
jaroslav@30
|
594 |
case bc_checkcast: {
|
jaroslav@30
|
595 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@30
|
596 |
CPClassInfo ci = jc.getConstantPool().getClass(indx);
|
jaroslav@42
|
597 |
final String type = ci.getClassName().getType();
|
jaroslav@42
|
598 |
if (!type.startsWith("[")) {
|
jaroslav@42
|
599 |
// no way to check arrays right now
|
jaroslav@42
|
600 |
out.append("if(stack[stack.length - 1].$instOf_")
|
jaroslav@42
|
601 |
.append(type.replace('/', '_'))
|
jaroslav@42
|
602 |
.append(" != 1) throw {};"); // XXX proper exception
|
jaroslav@42
|
603 |
}
|
jaroslav@30
|
604 |
i += 2;
|
jaroslav@30
|
605 |
break;
|
jaroslav@30
|
606 |
}
|
jaroslav@17
|
607 |
case bc_instanceof: {
|
jaroslav@17
|
608 |
int indx = readIntArg(byteCodes, i);
|
jaroslav@17
|
609 |
CPClassInfo ci = jc.getConstantPool().getClass(indx);
|
jaroslav@17
|
610 |
out.append("stack.push(stack.pop().$instOf_")
|
jaroslav@18
|
611 |
.append(ci.getClassName().getInternalName().replace('/', '_'))
|
jaroslav@17
|
612 |
.append(" ? 1 : 0);");
|
jaroslav@17
|
613 |
i += 2;
|
jaroslav@30
|
614 |
break;
|
jaroslav@17
|
615 |
}
|
jaroslav@8
|
616 |
|
jaroslav@0
|
617 |
}
|
jaroslav@39
|
618 |
out.append(" //");
|
jaroslav@0
|
619 |
for (int j = prev; j <= i; j++) {
|
jaroslav@0
|
620 |
out.append(" ");
|
jaroslav@0
|
621 |
final int cc = (byteCodes[j] + 256) % 256;
|
jaroslav@0
|
622 |
out.append(Integer.toString(cc));
|
jaroslav@0
|
623 |
}
|
jaroslav@39
|
624 |
out.append("\n");
|
jaroslav@0
|
625 |
}
|
jaroslav@10
|
626 |
out.append(" }\n");
|
jaroslav@4
|
627 |
}
|
jaroslav@4
|
628 |
|
jaroslav@4
|
629 |
private int generateIf(byte[] byteCodes, int i, final String test) throws IOException {
|
jaroslav@4
|
630 |
int indx = i + readIntArg(byteCodes, i);
|
jaroslav@4
|
631 |
out.append("if (stack.pop() ").append(test).append(" stack.pop()) { gt = " + indx);
|
jaroslav@4
|
632 |
out.append("; continue; }");
|
jaroslav@4
|
633 |
return i + 2;
|
jaroslav@4
|
634 |
}
|
jaroslav@4
|
635 |
|
jaroslav@4
|
636 |
private int readIntArg(byte[] byteCodes, int offsetInstruction) {
|
jaroslav@5
|
637 |
final int indxHi = byteCodes[offsetInstruction + 1] << 8;
|
jaroslav@5
|
638 |
final int indxLo = byteCodes[offsetInstruction + 2];
|
jaroslav@5
|
639 |
return (indxHi & 0xffffff00) | (indxLo & 0xff);
|
jaroslav@4
|
640 |
}
|
jaroslav@4
|
641 |
|
jaroslav@4
|
642 |
private static int countArgs(String descriptor, boolean[] hasReturnType, StringBuilder sig) {
|
jaroslav@4
|
643 |
int cnt = 0;
|
jaroslav@4
|
644 |
int i = 0;
|
jaroslav@4
|
645 |
Boolean count = null;
|
jaroslav@32
|
646 |
boolean array = false;
|
jaroslav@10
|
647 |
int firstPos = sig.length();
|
jaroslav@4
|
648 |
while (i < descriptor.length()) {
|
jaroslav@4
|
649 |
char ch = descriptor.charAt(i++);
|
jaroslav@4
|
650 |
switch (ch) {
|
jaroslav@4
|
651 |
case '(':
|
jaroslav@4
|
652 |
count = true;
|
jaroslav@4
|
653 |
continue;
|
jaroslav@4
|
654 |
case ')':
|
jaroslav@4
|
655 |
count = false;
|
jaroslav@4
|
656 |
continue;
|
jaroslav@32
|
657 |
case 'A':
|
jaroslav@32
|
658 |
array = true;
|
jaroslav@32
|
659 |
break;
|
jaroslav@4
|
660 |
case 'B':
|
jaroslav@4
|
661 |
case 'C':
|
jaroslav@4
|
662 |
case 'D':
|
jaroslav@4
|
663 |
case 'F':
|
jaroslav@4
|
664 |
case 'I':
|
jaroslav@4
|
665 |
case 'J':
|
jaroslav@4
|
666 |
case 'S':
|
jaroslav@4
|
667 |
case 'Z':
|
jaroslav@4
|
668 |
if (count) {
|
jaroslav@4
|
669 |
cnt++;
|
jaroslav@32
|
670 |
if (array) {
|
jaroslav@32
|
671 |
sig.append('A');
|
jaroslav@32
|
672 |
}
|
jaroslav@4
|
673 |
sig.append(ch);
|
jaroslav@4
|
674 |
} else {
|
jaroslav@4
|
675 |
hasReturnType[0] = true;
|
jaroslav@10
|
676 |
sig.insert(firstPos, ch);
|
jaroslav@32
|
677 |
if (array) {
|
jaroslav@32
|
678 |
sig.insert(firstPos, 'A');
|
jaroslav@32
|
679 |
}
|
jaroslav@4
|
680 |
}
|
jaroslav@4
|
681 |
continue;
|
jaroslav@4
|
682 |
case 'V':
|
jaroslav@4
|
683 |
assert !count;
|
jaroslav@4
|
684 |
hasReturnType[0] = false;
|
jaroslav@10
|
685 |
sig.insert(firstPos, 'V');
|
jaroslav@4
|
686 |
continue;
|
jaroslav@4
|
687 |
case 'L':
|
jaroslav@16
|
688 |
int next = descriptor.indexOf(';', i);
|
jaroslav@4
|
689 |
if (count) {
|
jaroslav@4
|
690 |
cnt++;
|
jaroslav@32
|
691 |
if (array) {
|
jaroslav@32
|
692 |
sig.append('A');
|
jaroslav@32
|
693 |
}
|
jaroslav@16
|
694 |
sig.append(ch);
|
jaroslav@16
|
695 |
sig.append(descriptor.substring(i, next).replace('/', '_'));
|
jaroslav@4
|
696 |
} else {
|
jaroslav@16
|
697 |
sig.insert(firstPos, descriptor.substring(i, next).replace('/', '_'));
|
jaroslav@16
|
698 |
sig.insert(firstPos, ch);
|
jaroslav@32
|
699 |
if (array) {
|
jaroslav@33
|
700 |
sig.insert(firstPos, 'A');
|
jaroslav@32
|
701 |
}
|
jaroslav@4
|
702 |
hasReturnType[0] = true;
|
jaroslav@4
|
703 |
}
|
jaroslav@16
|
704 |
i = next + 1;
|
jaroslav@4
|
705 |
continue;
|
jaroslav@4
|
706 |
case '[':
|
jaroslav@4
|
707 |
//arrays++;
|
jaroslav@4
|
708 |
continue;
|
jaroslav@4
|
709 |
default:
|
jaroslav@4
|
710 |
break; // invalid character
|
jaroslav@4
|
711 |
}
|
jaroslav@4
|
712 |
}
|
jaroslav@4
|
713 |
return cnt;
|
jaroslav@0
|
714 |
}
|
jaroslav@9
|
715 |
|
jaroslav@9
|
716 |
private void generateStaticField(Variable v) throws IOException {
|
jaroslav@9
|
717 |
out.append("\nvar ")
|
jaroslav@18
|
718 |
.append(jc.getName().getInternalName().replace('/', '_'))
|
jaroslav@9
|
719 |
.append('_').append(v.getName()).append(" = 0;");
|
jaroslav@9
|
720 |
}
|
jaroslav@10
|
721 |
|
jaroslav@10
|
722 |
private String findMethodName(Method m) {
|
jaroslav@42
|
723 |
StringBuilder name = new StringBuilder();
|
jaroslav@42
|
724 |
String descr = m.getDescriptor();
|
jaroslav@10
|
725 |
if ("<init>".equals(m.getName())) { // NOI18N
|
jaroslav@42
|
726 |
name.append("cons"); // NOI18N
|
jaroslav@19
|
727 |
} else if ("<clinit>".equals(m.getName())) { // NOI18N
|
jaroslav@42
|
728 |
name.append("class"); // NOI18N
|
jaroslav@10
|
729 |
} else {
|
jaroslav@42
|
730 |
name.append(m.getName());
|
jaroslav@10
|
731 |
}
|
jaroslav@42
|
732 |
|
jaroslav@42
|
733 |
boolean hasReturn[] = { false };
|
jaroslav@42
|
734 |
countArgs(findDescriptor(m.getDescriptor()), hasReturn, name);
|
jaroslav@42
|
735 |
return name.toString();
|
jaroslav@10
|
736 |
}
|
jaroslav@10
|
737 |
|
jaroslav@10
|
738 |
private String findMethodName(CPMethodInfo mi, int[] cnt, boolean[] hasReturn) {
|
jaroslav@10
|
739 |
StringBuilder name = new StringBuilder();
|
jaroslav@42
|
740 |
String descr = mi.getDescriptor();
|
jaroslav@10
|
741 |
if ("<init>".equals(mi.getName())) { // NOI18N
|
jaroslav@10
|
742 |
name.append("cons"); // NOI18N
|
jaroslav@10
|
743 |
} else {
|
jaroslav@10
|
744 |
name.append(mi.getName());
|
jaroslav@10
|
745 |
}
|
jaroslav@32
|
746 |
cnt[0] = countArgs(findDescriptor(mi.getDescriptor()), hasReturn, name);
|
jaroslav@10
|
747 |
return name.toString();
|
jaroslav@10
|
748 |
}
|
jaroslav@10
|
749 |
|
jaroslav@10
|
750 |
private int invokeStaticMethod(byte[] byteCodes, int i, boolean isStatic)
|
jaroslav@10
|
751 |
throws IOException {
|
jaroslav@10
|
752 |
int methodIndex = readIntArg(byteCodes, i);
|
jaroslav@10
|
753 |
CPMethodInfo mi = (CPMethodInfo) jc.getConstantPool().get(methodIndex);
|
jaroslav@10
|
754 |
boolean[] hasReturn = { false };
|
jaroslav@10
|
755 |
int[] cnt = { 0 };
|
jaroslav@10
|
756 |
String mn = findMethodName(mi, cnt, hasReturn);
|
jaroslav@11
|
757 |
out.append("{ ");
|
jaroslav@11
|
758 |
for (int j = cnt[0] - 1; j >= 0; j--) {
|
jaroslav@11
|
759 |
out.append("var v" + j).append(" = stack.pop(); ");
|
jaroslav@11
|
760 |
}
|
jaroslav@11
|
761 |
|
jaroslav@10
|
762 |
if (hasReturn[0]) {
|
jaroslav@10
|
763 |
out.append("stack.push(");
|
jaroslav@10
|
764 |
}
|
jaroslav@18
|
765 |
final String in = mi.getClassName().getInternalName();
|
jaroslav@18
|
766 |
out.append(in.replace('/', '_'));
|
jaroslav@10
|
767 |
out.append('_');
|
jaroslav@10
|
768 |
out.append(mn);
|
jaroslav@10
|
769 |
out.append('(');
|
jaroslav@10
|
770 |
String sep = "";
|
jaroslav@10
|
771 |
if (!isStatic) {
|
jaroslav@10
|
772 |
out.append("stack.pop()");
|
jaroslav@10
|
773 |
sep = ", ";
|
jaroslav@10
|
774 |
}
|
jaroslav@10
|
775 |
for (int j = 0; j < cnt[0]; j++) {
|
jaroslav@10
|
776 |
out.append(sep);
|
jaroslav@11
|
777 |
out.append("v" + j);
|
jaroslav@10
|
778 |
sep = ", ";
|
jaroslav@10
|
779 |
}
|
jaroslav@10
|
780 |
out.append(")");
|
jaroslav@10
|
781 |
if (hasReturn[0]) {
|
jaroslav@10
|
782 |
out.append(")");
|
jaroslav@10
|
783 |
}
|
jaroslav@11
|
784 |
out.append("; }");
|
jaroslav@10
|
785 |
i += 2;
|
jaroslav@18
|
786 |
addReference(in);
|
jaroslav@10
|
787 |
return i;
|
jaroslav@10
|
788 |
}
|
jaroslav@12
|
789 |
private int invokeVirtualMethod(byte[] byteCodes, int i)
|
jaroslav@12
|
790 |
throws IOException {
|
jaroslav@12
|
791 |
int methodIndex = readIntArg(byteCodes, i);
|
jaroslav@12
|
792 |
CPMethodInfo mi = (CPMethodInfo) jc.getConstantPool().get(methodIndex);
|
jaroslav@12
|
793 |
boolean[] hasReturn = { false };
|
jaroslav@12
|
794 |
int[] cnt = { 0 };
|
jaroslav@12
|
795 |
String mn = findMethodName(mi, cnt, hasReturn);
|
jaroslav@12
|
796 |
out.append("{ ");
|
jaroslav@12
|
797 |
for (int j = cnt[0] - 1; j >= 0; j--) {
|
jaroslav@12
|
798 |
out.append("var v" + j).append(" = stack.pop(); ");
|
jaroslav@12
|
799 |
}
|
jaroslav@12
|
800 |
out.append("var self = stack.pop(); ");
|
jaroslav@12
|
801 |
if (hasReturn[0]) {
|
jaroslav@12
|
802 |
out.append("stack.push(");
|
jaroslav@12
|
803 |
}
|
jaroslav@12
|
804 |
out.append("self.");
|
jaroslav@12
|
805 |
out.append(mn);
|
jaroslav@12
|
806 |
out.append('(');
|
jaroslav@12
|
807 |
out.append("self");
|
jaroslav@12
|
808 |
for (int j = 0; j < cnt[0]; j++) {
|
jaroslav@12
|
809 |
out.append(", ");
|
jaroslav@12
|
810 |
out.append("v" + j);
|
jaroslav@12
|
811 |
}
|
jaroslav@12
|
812 |
out.append(")");
|
jaroslav@12
|
813 |
if (hasReturn[0]) {
|
jaroslav@12
|
814 |
out.append(")");
|
jaroslav@12
|
815 |
}
|
jaroslav@12
|
816 |
out.append("; }");
|
jaroslav@12
|
817 |
i += 2;
|
jaroslav@12
|
818 |
return i;
|
jaroslav@12
|
819 |
}
|
jaroslav@18
|
820 |
|
jaroslav@18
|
821 |
private void addReference(String cn) {
|
jaroslav@18
|
822 |
if (references != null) {
|
jaroslav@18
|
823 |
references.add(cn);
|
jaroslav@18
|
824 |
}
|
jaroslav@18
|
825 |
}
|
jaroslav@16
|
826 |
|
jaroslav@33
|
827 |
private void outType(String d, StringBuilder out) {
|
jaroslav@33
|
828 |
int arr = 0;
|
jaroslav@33
|
829 |
while (d.charAt(0) == '[') {
|
jaroslav@33
|
830 |
out.append('A');
|
jaroslav@33
|
831 |
d = d.substring(1);
|
jaroslav@33
|
832 |
}
|
jaroslav@16
|
833 |
if (d.charAt(0) == 'L') {
|
jaroslav@16
|
834 |
assert d.charAt(d.length() - 1) == ';';
|
jaroslav@16
|
835 |
out.append(d.replace('/', '_').substring(0, d.length() - 1));
|
jaroslav@16
|
836 |
} else {
|
jaroslav@16
|
837 |
out.append(d);
|
jaroslav@16
|
838 |
}
|
jaroslav@16
|
839 |
}
|
jaroslav@21
|
840 |
|
jaroslav@21
|
841 |
private String encodeConstant(CPEntry entry) {
|
jaroslav@21
|
842 |
final String v;
|
jaroslav@21
|
843 |
if (entry instanceof CPStringInfo) {
|
jaroslav@21
|
844 |
v = "\"" + entry.getValue().toString().replace("\"", "\\\"") + "\"";
|
jaroslav@21
|
845 |
} else {
|
jaroslav@21
|
846 |
v = entry.getValue().toString();
|
jaroslav@21
|
847 |
}
|
jaroslav@21
|
848 |
return v;
|
jaroslav@21
|
849 |
}
|
jaroslav@32
|
850 |
|
jaroslav@32
|
851 |
private String findDescriptor(String d) {
|
jaroslav@32
|
852 |
return d.replace('[', 'A');
|
jaroslav@32
|
853 |
}
|
jaroslav@0
|
854 |
}
|