jaroslav@106
|
1 |
/**
|
jaroslav@106
|
2 |
* Back 2 Browser Bytecode Translator
|
jaroslav@106
|
3 |
* Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
|
jaroslav@106
|
4 |
*
|
jaroslav@106
|
5 |
* This program is free software: you can redistribute it and/or modify
|
jaroslav@106
|
6 |
* it under the terms of the GNU General Public License as published by
|
jaroslav@106
|
7 |
* the Free Software Foundation, version 2 of the License.
|
jaroslav@106
|
8 |
*
|
jaroslav@106
|
9 |
* This program is distributed in the hope that it will be useful,
|
jaroslav@106
|
10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
jaroslav@106
|
11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
jaroslav@106
|
12 |
* GNU General Public License for more details.
|
jaroslav@106
|
13 |
*
|
jaroslav@106
|
14 |
* You should have received a copy of the GNU General Public License
|
jaroslav@106
|
15 |
* along with this program. Look for COPYING file in the top folder.
|
jaroslav@106
|
16 |
* If not, see http://opensource.org/licenses/GPL-2.0.
|
jaroslav@106
|
17 |
*/
|
jaroslav@29
|
18 |
package org.apidesign.vm4brwsr;
|
jaroslav@29
|
19 |
|
jaroslav@29
|
20 |
import java.io.IOException;
|
jaroslav@29
|
21 |
import java.io.InputStream;
|
lubomir@1029
|
22 |
import org.apidesign.vm4brwsr.ByteCodeParser.ClassData;
|
lubomir@1083
|
23 |
import org.apidesign.vm4brwsr.ByteCodeParser.FieldData;
|
lubomir@1083
|
24 |
import org.apidesign.vm4brwsr.ByteCodeParser.MethodData;
|
jaroslav@29
|
25 |
|
jaroslav@29
|
26 |
/** Generator of JavaScript from bytecode of classes on classpath of the VM.
|
jaroslav@29
|
27 |
*
|
jaroslav@29
|
28 |
* @author Jaroslav Tulach <jtulach@netbeans.org>
|
jaroslav@29
|
29 |
*/
|
lubomir@1020
|
30 |
abstract class VM extends ByteCodeToJavaScript {
|
lubomir@1084
|
31 |
protected final ClassDataCache classDataCache;
|
lubomir@1084
|
32 |
|
lubomir@1084
|
33 |
private final Bck2Brwsr.Resources resources;
|
lubomir@1029
|
34 |
private final ExportedSymbols exportedSymbols;
|
lubomir@1085
|
35 |
private final StringArray invokerMethods;
|
lubomir@1029
|
36 |
|
lubomir@1143
|
37 |
private static final Class<?> FIXED_DEPENDENCIES[] = {
|
lubomir@1143
|
38 |
Class.class,
|
lubomir@1143
|
39 |
ArithmeticException.class,
|
lubomir@1143
|
40 |
VM.class
|
lubomir@1143
|
41 |
};
|
lubomir@1143
|
42 |
|
jaroslav@1491
|
43 |
private VM(Appendable out, Bck2Brwsr.Resources resources, StringArray explicitlyExported) {
|
lubomir@1029
|
44 |
super(out);
|
lubomir@1029
|
45 |
this.resources = resources;
|
lubomir@1084
|
46 |
this.classDataCache = new ClassDataCache(resources);
|
jaroslav@1491
|
47 |
this.exportedSymbols = new ExportedSymbols(resources, explicitlyExported);
|
lubomir@1085
|
48 |
this.invokerMethods = new StringArray();
|
lubomir@869
|
49 |
}
|
lubomir@869
|
50 |
|
jaroslav@277
|
51 |
static {
|
jaroslav@277
|
52 |
// uses VMLazy to load dynamic classes
|
jaroslav@671
|
53 |
boolean assertsOn = false;
|
jaroslav@671
|
54 |
assert assertsOn = true;
|
jaroslav@671
|
55 |
if (assertsOn) {
|
jaroslav@671
|
56 |
VMLazy.init();
|
jaroslav@671
|
57 |
Zips.init();
|
jaroslav@671
|
58 |
}
|
jaroslav@277
|
59 |
}
|
jaroslav@399
|
60 |
|
jaroslav@399
|
61 |
@Override
|
jaroslav@399
|
62 |
boolean debug(String msg) throws IOException {
|
jaroslav@399
|
63 |
return false;
|
jaroslav@399
|
64 |
}
|
jaroslav@277
|
65 |
|
jaroslav@1491
|
66 |
static void compile(Appendable out,
|
jaroslav@1493
|
67 |
Bck2Brwsr config
|
jaroslav@1491
|
68 |
) throws IOException {
|
jaroslav@1493
|
69 |
String[] both = config.allClasses();
|
jaroslav@1491
|
70 |
|
jaroslav@1493
|
71 |
VM vm = config.isExtension() ?
|
jaroslav@1493
|
72 |
new Extension(out, config.getResources(), both, config.rootClasses())
|
jaroslav@1493
|
73 |
:
|
jaroslav@1493
|
74 |
new Standalone(out, config.getResources(), config.rootClasses());
|
lubomir@1094
|
75 |
|
lubomir@1143
|
76 |
final StringArray fixedNames = new StringArray();
|
lubomir@1143
|
77 |
|
lubomir@1143
|
78 |
for (final Class<?> fixedClass: FIXED_DEPENDENCIES) {
|
lubomir@1143
|
79 |
fixedNames.add(fixedClass.getName().replace('.', '/'));
|
lubomir@1143
|
80 |
}
|
lubomir@1094
|
81 |
|
jaroslav@1493
|
82 |
vm.doCompile(fixedNames.addAndNew(both));
|
lubomir@869
|
83 |
}
|
lubomir@869
|
84 |
|
lubomir@1029
|
85 |
private void doCompile(StringArray names) throws IOException {
|
lubomir@1020
|
86 |
generatePrologue();
|
lubomir@1085
|
87 |
out.append(
|
lubomir@1085
|
88 |
"\n var invoker = function Invoker() {"
|
lubomir@1085
|
89 |
+ "\n return Invoker.target[Invoker.method]"
|
lubomir@1085
|
90 |
+ ".apply(Invoker.target, arguments);"
|
lubomir@1085
|
91 |
+ "\n };");
|
lubomir@1029
|
92 |
generateBody(names);
|
lubomir@1085
|
93 |
for (String invokerMethod: invokerMethods.toArray()) {
|
lubomir@1085
|
94 |
out.append("\n invoker." + invokerMethod + " = function(target) {"
|
lubomir@1085
|
95 |
+ "\n invoker.target = target;"
|
lubomir@1085
|
96 |
+ "\n invoker.method = '" + invokerMethod + "';"
|
lubomir@1085
|
97 |
+ "\n return invoker;"
|
lubomir@1085
|
98 |
+ "\n };");
|
lubomir@1085
|
99 |
}
|
lubomir@1085
|
100 |
out.append("\n");
|
lubomir@1020
|
101 |
generateEpilogue();
|
lubomir@1020
|
102 |
}
|
lubomir@1020
|
103 |
|
lubomir@1020
|
104 |
protected abstract void generatePrologue() throws IOException;
|
lubomir@1020
|
105 |
|
lubomir@1020
|
106 |
protected abstract void generateEpilogue() throws IOException;
|
lubomir@1020
|
107 |
|
lubomir@1094
|
108 |
protected abstract String getExportsObject();
|
lubomir@1029
|
109 |
|
lubomir@1094
|
110 |
protected abstract boolean isExternalClass(String className);
|
lubomir@1029
|
111 |
|
lubomir@1029
|
112 |
@Override
|
lubomir@1029
|
113 |
protected final void declaredClass(ClassData classData, String mangledName)
|
lubomir@1029
|
114 |
throws IOException {
|
lubomir@1029
|
115 |
if (exportedSymbols.isExported(classData)) {
|
lubomir@1029
|
116 |
out.append("\n").append(getExportsObject()).append("['")
|
lubomir@1029
|
117 |
.append(mangledName)
|
lubomir@1029
|
118 |
.append("'] = ")
|
lubomir@1029
|
119 |
.append(accessClass(mangledName))
|
lubomir@1029
|
120 |
.append(";\n");
|
lubomir@1029
|
121 |
}
|
lubomir@1029
|
122 |
}
|
lubomir@1029
|
123 |
|
lubomir@1094
|
124 |
protected String generateClass(String className) throws IOException {
|
lubomir@1094
|
125 |
ClassData classData = classDataCache.getClassData(className);
|
lubomir@1094
|
126 |
if (classData == null) {
|
lubomir@1094
|
127 |
throw new IOException("Can't find class " + className);
|
lubomir@1094
|
128 |
}
|
lubomir@1094
|
129 |
return compile(classData);
|
lubomir@1094
|
130 |
}
|
lubomir@1094
|
131 |
|
lubomir@1083
|
132 |
@Override
|
lubomir@1083
|
133 |
protected void declaredField(FieldData fieldData,
|
lubomir@1083
|
134 |
String destObject,
|
lubomir@1083
|
135 |
String mangledName) throws IOException {
|
lubomir@1083
|
136 |
if (exportedSymbols.isExported(fieldData)) {
|
lubomir@1083
|
137 |
exportMember(destObject, mangledName);
|
lubomir@1083
|
138 |
}
|
lubomir@1083
|
139 |
}
|
lubomir@1083
|
140 |
|
lubomir@1083
|
141 |
@Override
|
lubomir@1083
|
142 |
protected void declaredMethod(MethodData methodData,
|
lubomir@1083
|
143 |
String destObject,
|
lubomir@1083
|
144 |
String mangledName) throws IOException {
|
lubomir@1087
|
145 |
if (isHierarchyExported(methodData)) {
|
lubomir@1083
|
146 |
exportMember(destObject, mangledName);
|
lubomir@1083
|
147 |
}
|
lubomir@1083
|
148 |
}
|
lubomir@1083
|
149 |
|
lubomir@1083
|
150 |
private void exportMember(String destObject, String memberName)
|
lubomir@1083
|
151 |
throws IOException {
|
lubomir@1083
|
152 |
out.append("\n").append(destObject).append("['")
|
lubomir@1083
|
153 |
.append(memberName)
|
lubomir@1083
|
154 |
.append("'] = ")
|
lubomir@1083
|
155 |
.append(destObject).append(".").append(memberName)
|
lubomir@1083
|
156 |
.append(";\n");
|
lubomir@1083
|
157 |
}
|
lubomir@1083
|
158 |
|
lubomir@1029
|
159 |
private void generateBody(StringArray names) throws IOException {
|
jtulach@162
|
160 |
StringArray processed = new StringArray();
|
jtulach@162
|
161 |
StringArray initCode = new StringArray();
|
jtulach@162
|
162 |
for (String baseClass : names.toArray()) {
|
jaroslav@272
|
163 |
references.add(baseClass);
|
jaroslav@97
|
164 |
for (;;) {
|
jaroslav@97
|
165 |
String name = null;
|
jaroslav@272
|
166 |
for (String n : references.toArray()) {
|
jtulach@162
|
167 |
if (processed.contains(n)) {
|
jaroslav@97
|
168 |
continue;
|
jaroslav@97
|
169 |
}
|
jaroslav@97
|
170 |
name = n;
|
jaroslav@97
|
171 |
}
|
jaroslav@97
|
172 |
if (name == null) {
|
jaroslav@97
|
173 |
break;
|
jaroslav@97
|
174 |
}
|
lubomir@1029
|
175 |
|
jaroslav@97
|
176 |
try {
|
lubomir@1029
|
177 |
String ic = generateClass(name);
|
jtulach@162
|
178 |
processed.add(name);
|
jtulach@162
|
179 |
initCode.add(ic == null ? "" : ic);
|
jaroslav@97
|
180 |
} catch (RuntimeException ex) {
|
jaroslav@97
|
181 |
if (out instanceof CharSequence) {
|
jaroslav@97
|
182 |
CharSequence seq = (CharSequence)out;
|
jaroslav@97
|
183 |
int lastBlock = seq.length();
|
jaroslav@151
|
184 |
while (lastBlock-- > 0) {
|
jaroslav@97
|
185 |
if (seq.charAt(lastBlock) == '{') {
|
jaroslav@97
|
186 |
break;
|
jaroslav@97
|
187 |
}
|
jaroslav@29
|
188 |
}
|
lubomir@1020
|
189 |
throw new IOException("Error while compiling " + name + "\n"
|
jaroslav@97
|
190 |
+ seq.subSequence(lastBlock + 1, seq.length()), ex
|
jaroslav@97
|
191 |
);
|
jaroslav@97
|
192 |
} else {
|
lubomir@1020
|
193 |
throw new IOException("Error while compiling " + name + "\n"
|
jaroslav@97
|
194 |
+ out, ex
|
jaroslav@97
|
195 |
);
|
jaroslav@29
|
196 |
}
|
jaroslav@97
|
197 |
}
|
jaroslav@29
|
198 |
}
|
jaroslav@97
|
199 |
|
jaroslav@272
|
200 |
for (String resource : scripts.toArray()) {
|
jaroslav@250
|
201 |
while (resource.startsWith("/")) {
|
jaroslav@250
|
202 |
resource = resource.substring(1);
|
jaroslav@250
|
203 |
}
|
lubomir@1029
|
204 |
InputStream emul = resources.get(resource);
|
jaroslav@250
|
205 |
if (emul == null) {
|
jaroslav@250
|
206 |
throw new IOException("Can't find " + resource);
|
jaroslav@250
|
207 |
}
|
jaroslav@250
|
208 |
readResource(emul, out);
|
jaroslav@250
|
209 |
}
|
jaroslav@272
|
210 |
scripts = new StringArray();
|
lubomir@1020
|
211 |
|
jaroslav@272
|
212 |
StringArray toInit = StringArray.asList(references.toArray());
|
jtulach@162
|
213 |
toInit.reverse();
|
jtulach@129
|
214 |
|
jtulach@162
|
215 |
for (String ic : toInit.toArray()) {
|
jtulach@162
|
216 |
int indx = processed.indexOf(ic);
|
jtulach@162
|
217 |
if (indx >= 0) {
|
jaroslav@833
|
218 |
final String theCode = initCode.toArray()[indx];
|
jaroslav@833
|
219 |
if (!theCode.isEmpty()) {
|
jaroslav@833
|
220 |
out.append(theCode).append("\n");
|
jaroslav@833
|
221 |
}
|
jtulach@162
|
222 |
initCode.toArray()[indx] = "";
|
jaroslav@91
|
223 |
}
|
jaroslav@91
|
224 |
}
|
jaroslav@29
|
225 |
}
|
jaroslav@29
|
226 |
}
|
lubomir@1020
|
227 |
|
jaroslav@90
|
228 |
private static void readResource(InputStream emul, Appendable out) throws IOException {
|
jaroslav@90
|
229 |
try {
|
jaroslav@90
|
230 |
int state = 0;
|
jaroslav@90
|
231 |
for (;;) {
|
jaroslav@90
|
232 |
int ch = emul.read();
|
jaroslav@90
|
233 |
if (ch == -1) {
|
jaroslav@90
|
234 |
break;
|
jaroslav@90
|
235 |
}
|
jaroslav@90
|
236 |
if (ch < 0 || ch > 255) {
|
jaroslav@90
|
237 |
throw new IOException("Invalid char in emulation " + ch);
|
jaroslav@90
|
238 |
}
|
jaroslav@90
|
239 |
switch (state) {
|
jaroslav@90
|
240 |
case 0:
|
jaroslav@90
|
241 |
if (ch == '/') {
|
jaroslav@90
|
242 |
state = 1;
|
jaroslav@90
|
243 |
} else {
|
jaroslav@90
|
244 |
out.append((char)ch);
|
jaroslav@90
|
245 |
}
|
jaroslav@90
|
246 |
break;
|
jaroslav@90
|
247 |
case 1:
|
jaroslav@90
|
248 |
if (ch == '*') {
|
jaroslav@90
|
249 |
state = 2;
|
jaroslav@90
|
250 |
} else {
|
jaroslav@90
|
251 |
out.append('/').append((char)ch);
|
jaroslav@90
|
252 |
state = 0;
|
jaroslav@90
|
253 |
}
|
jaroslav@90
|
254 |
break;
|
jaroslav@90
|
255 |
case 2:
|
jaroslav@90
|
256 |
if (ch == '*') {
|
jaroslav@90
|
257 |
state = 3;
|
jaroslav@90
|
258 |
}
|
jaroslav@90
|
259 |
break;
|
jaroslav@90
|
260 |
case 3:
|
jaroslav@90
|
261 |
if (ch == '/') {
|
jaroslav@90
|
262 |
state = 0;
|
jaroslav@90
|
263 |
} else {
|
jaroslav@90
|
264 |
state = 2;
|
jaroslav@90
|
265 |
}
|
jaroslav@90
|
266 |
break;
|
jaroslav@90
|
267 |
}
|
jaroslav@90
|
268 |
}
|
jaroslav@90
|
269 |
} finally {
|
jaroslav@90
|
270 |
emul.close();
|
jaroslav@90
|
271 |
}
|
jaroslav@90
|
272 |
}
|
jaroslav@93
|
273 |
|
jaroslav@136
|
274 |
static String toString(String name) throws IOException {
|
jaroslav@136
|
275 |
StringBuilder sb = new StringBuilder();
|
jaroslav@298
|
276 |
// compile(sb, name);
|
jaroslav@136
|
277 |
return sb.toString().toString();
|
jaroslav@136
|
278 |
}
|
jtulach@162
|
279 |
|
jtulach@162
|
280 |
private StringArray scripts = new StringArray();
|
jtulach@162
|
281 |
private StringArray references = new StringArray();
|
jtulach@162
|
282 |
|
jtulach@162
|
283 |
@Override
|
jtulach@162
|
284 |
protected boolean requireReference(String cn) {
|
jtulach@162
|
285 |
if (references.contains(cn)) {
|
jtulach@162
|
286 |
return false;
|
jtulach@162
|
287 |
}
|
jtulach@162
|
288 |
references.add(cn);
|
jtulach@162
|
289 |
return true;
|
jtulach@162
|
290 |
}
|
jtulach@162
|
291 |
|
jtulach@162
|
292 |
@Override
|
jtulach@162
|
293 |
protected void requireScript(String resourcePath) {
|
jtulach@162
|
294 |
scripts.add(resourcePath);
|
jtulach@162
|
295 |
}
|
jaroslav@274
|
296 |
|
jaroslav@274
|
297 |
@Override
|
jaroslav@274
|
298 |
String assignClass(String className) {
|
jaroslav@274
|
299 |
return "vm." + className + " = ";
|
jaroslav@274
|
300 |
}
|
jaroslav@274
|
301 |
|
jaroslav@274
|
302 |
@Override
|
jaroslav@274
|
303 |
String accessClass(String className) {
|
jaroslav@274
|
304 |
return "vm." + className;
|
jaroslav@274
|
305 |
}
|
lubomir@869
|
306 |
|
lubomir@1084
|
307 |
@Override
|
lubomir@1085
|
308 |
protected String accessField(String object, String mangledName,
|
lubomir@1085
|
309 |
String[] fieldInfoName) throws IOException {
|
lubomir@1085
|
310 |
final FieldData field =
|
lubomir@1085
|
311 |
classDataCache.findField(fieldInfoName[0],
|
lubomir@1085
|
312 |
fieldInfoName[1],
|
lubomir@1085
|
313 |
fieldInfoName[2]);
|
lubomir@1085
|
314 |
return accessNonVirtualMember(object, mangledName,
|
lubomir@1085
|
315 |
(field != null) ? field.cls : null);
|
lubomir@1085
|
316 |
}
|
lubomir@1085
|
317 |
|
lubomir@1085
|
318 |
@Override
|
lubomir@1085
|
319 |
protected String accessStaticMethod(
|
lubomir@1085
|
320 |
String object,
|
lubomir@1085
|
321 |
String mangledName,
|
lubomir@1085
|
322 |
String[] fieldInfoName) throws IOException {
|
lubomir@1085
|
323 |
final MethodData method =
|
lubomir@1085
|
324 |
classDataCache.findMethod(fieldInfoName[0],
|
lubomir@1085
|
325 |
fieldInfoName[1],
|
lubomir@1085
|
326 |
fieldInfoName[2]);
|
lubomir@1085
|
327 |
return accessNonVirtualMember(object, mangledName,
|
lubomir@1085
|
328 |
(method != null) ? method.cls : null);
|
lubomir@1085
|
329 |
}
|
lubomir@1085
|
330 |
|
lubomir@1085
|
331 |
@Override
|
lubomir@1085
|
332 |
protected String accessVirtualMethod(
|
lubomir@1085
|
333 |
String object,
|
lubomir@1085
|
334 |
String mangledName,
|
lubomir@1085
|
335 |
String[] fieldInfoName) throws IOException {
|
lubomir@1085
|
336 |
final ClassData referencedClass =
|
lubomir@1084
|
337 |
classDataCache.getClassData(fieldInfoName[0]);
|
lubomir@1085
|
338 |
final MethodData method =
|
lubomir@1085
|
339 |
classDataCache.findMethod(referencedClass,
|
lubomir@1085
|
340 |
fieldInfoName[1],
|
lubomir@1085
|
341 |
fieldInfoName[2]);
|
lubomir@1085
|
342 |
|
lubomir@1085
|
343 |
if ((method != null)
|
lubomir@1094
|
344 |
&& !isExternalClass(method.cls.getClassName())
|
lubomir@1085
|
345 |
&& (((method.access & ByteCodeParser.ACC_FINAL) != 0)
|
lubomir@1085
|
346 |
|| ((referencedClass.getAccessFlags()
|
lubomir@1085
|
347 |
& ByteCodeParser.ACC_FINAL) != 0)
|
lubomir@1087
|
348 |
|| !isHierarchyExported(method))) {
|
lubomir@1085
|
349 |
return object + "." + mangledName;
|
lubomir@1084
|
350 |
}
|
lubomir@1084
|
351 |
|
lubomir@1085
|
352 |
return accessThroughInvoker(object, mangledName);
|
lubomir@1085
|
353 |
}
|
lubomir@1085
|
354 |
|
lubomir@1085
|
355 |
private String accessThroughInvoker(String object, String mangledName) {
|
lubomir@1085
|
356 |
if (!invokerMethods.contains(mangledName)) {
|
lubomir@1085
|
357 |
invokerMethods.add(mangledName);
|
lubomir@1085
|
358 |
}
|
lubomir@1085
|
359 |
return "invoker." + mangledName + '(' + object + ')';
|
lubomir@1085
|
360 |
}
|
lubomir@1085
|
361 |
|
lubomir@1087
|
362 |
private boolean isHierarchyExported(final MethodData methodData)
|
lubomir@1087
|
363 |
throws IOException {
|
lubomir@1087
|
364 |
if (exportedSymbols.isExported(methodData)) {
|
lubomir@1087
|
365 |
return true;
|
lubomir@1087
|
366 |
}
|
lubomir@1087
|
367 |
if ((methodData.access & (ByteCodeParser.ACC_PRIVATE
|
lubomir@1087
|
368 |
| ByteCodeParser.ACC_STATIC)) != 0) {
|
lubomir@1087
|
369 |
return false;
|
lubomir@1087
|
370 |
}
|
lubomir@1087
|
371 |
|
lubomir@1087
|
372 |
final ExportedMethodFinder exportedMethodFinder =
|
lubomir@1087
|
373 |
new ExportedMethodFinder(exportedSymbols);
|
lubomir@1087
|
374 |
|
lubomir@1087
|
375 |
classDataCache.findMethods(
|
lubomir@1087
|
376 |
methodData.cls,
|
lubomir@1087
|
377 |
methodData.getName(),
|
lubomir@1087
|
378 |
methodData.getInternalSig(),
|
lubomir@1087
|
379 |
exportedMethodFinder);
|
lubomir@1087
|
380 |
|
lubomir@1087
|
381 |
return (exportedMethodFinder.getFound() != null);
|
lubomir@1087
|
382 |
}
|
lubomir@1087
|
383 |
|
lubomir@1094
|
384 |
private String accessNonVirtualMember(String object,
|
lubomir@1094
|
385 |
String mangledName,
|
lubomir@1094
|
386 |
ClassData declaringClass) {
|
lubomir@1094
|
387 |
return ((declaringClass != null)
|
lubomir@1094
|
388 |
&& !isExternalClass(declaringClass.getClassName()))
|
lubomir@1094
|
389 |
? object + "." + mangledName
|
lubomir@1094
|
390 |
: object + "['" + mangledName + "']";
|
lubomir@1084
|
391 |
}
|
lubomir@1084
|
392 |
|
lubomir@1087
|
393 |
private static final class ExportedMethodFinder
|
lubomir@1087
|
394 |
implements ClassDataCache.TraversalCallback<MethodData> {
|
lubomir@1087
|
395 |
private final ExportedSymbols exportedSymbols;
|
lubomir@1087
|
396 |
private MethodData found;
|
lubomir@1087
|
397 |
|
lubomir@1087
|
398 |
public ExportedMethodFinder(final ExportedSymbols exportedSymbols) {
|
lubomir@1087
|
399 |
this.exportedSymbols = exportedSymbols;
|
lubomir@1087
|
400 |
}
|
lubomir@1087
|
401 |
|
lubomir@1087
|
402 |
@Override
|
lubomir@1087
|
403 |
public boolean traverse(final MethodData methodData) {
|
lubomir@1087
|
404 |
try {
|
lubomir@1087
|
405 |
if (exportedSymbols.isExported(methodData)) {
|
lubomir@1087
|
406 |
found = methodData;
|
lubomir@1087
|
407 |
return false;
|
lubomir@1087
|
408 |
}
|
lubomir@1087
|
409 |
} catch (final IOException e) {
|
lubomir@1087
|
410 |
}
|
lubomir@1087
|
411 |
|
lubomir@1087
|
412 |
return true;
|
lubomir@1087
|
413 |
}
|
lubomir@1087
|
414 |
|
lubomir@1087
|
415 |
public MethodData getFound() {
|
lubomir@1087
|
416 |
return found;
|
lubomir@1087
|
417 |
}
|
lubomir@1087
|
418 |
}
|
lubomir@1087
|
419 |
|
lubomir@1020
|
420 |
private static final class Standalone extends VM {
|
jaroslav@1491
|
421 |
private Standalone(Appendable out, Bck2Brwsr.Resources resources, StringArray explicitlyExported) {
|
jaroslav@1491
|
422 |
super(out, resources, explicitlyExported);
|
lubomir@1020
|
423 |
}
|
lubomir@1020
|
424 |
|
lubomir@1020
|
425 |
@Override
|
lubomir@1020
|
426 |
protected void generatePrologue() throws IOException {
|
lubomir@1020
|
427 |
out.append("(function VM(global) {var fillInVMSkeleton = function(vm) {");
|
lubomir@1020
|
428 |
}
|
lubomir@1020
|
429 |
|
lubomir@1020
|
430 |
@Override
|
lubomir@1020
|
431 |
protected void generateEpilogue() throws IOException {
|
lubomir@1020
|
432 |
out.append(
|
lubomir@1020
|
433 |
" return vm;\n"
|
lubomir@1020
|
434 |
+ " };\n"
|
lubomir@1029
|
435 |
+ " var extensions = [];\n"
|
lubomir@1020
|
436 |
+ " global.bck2brwsr = function() {\n"
|
lubomir@1020
|
437 |
+ " var args = Array.prototype.slice.apply(arguments);\n"
|
lubomir@1020
|
438 |
+ " var vm = fillInVMSkeleton({});\n"
|
lubomir@1029
|
439 |
+ " for (var i = 0; i < extensions.length; ++i) {\n"
|
lubomir@1029
|
440 |
+ " extensions[i](vm);\n"
|
lubomir@1029
|
441 |
+ " }\n"
|
jaroslav@1489
|
442 |
+ " var knownExtensions = extensions.length;\n"
|
lubomir@1020
|
443 |
+ " var loader = {};\n"
|
lubomir@1020
|
444 |
+ " loader.vm = vm;\n"
|
lubomir@1020
|
445 |
+ " loader.loadClass = function(name) {\n"
|
lubomir@1020
|
446 |
+ " var attr = name.replace__Ljava_lang_String_2CC('.','_');\n"
|
lubomir@1020
|
447 |
+ " var fn = vm[attr];\n"
|
lubomir@1020
|
448 |
+ " if (fn) return fn(false);\n"
|
jaroslav@1489
|
449 |
+ " try {\n"
|
jaroslav@1489
|
450 |
+ " return vm.org_apidesign_vm4brwsr_VMLazy(false).\n"
|
jaroslav@1489
|
451 |
+ " load__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_String_2_3Ljava_lang_Object_2(loader, name, args);\n"
|
jaroslav@1489
|
452 |
+ " } catch (err) {\n"
|
jaroslav@1489
|
453 |
+ " while (knownExtensions < extensions.length) {\n"
|
jaroslav@1489
|
454 |
+ " extensions[knownExtensions++](vm);\n"
|
jaroslav@1489
|
455 |
+ " }\n"
|
jaroslav@1489
|
456 |
+ " fn = vm[attr];\n"
|
jaroslav@1489
|
457 |
+ " if (fn) return fn(false);\n"
|
jaroslav@1489
|
458 |
+ " throw err;\n"
|
jaroslav@1489
|
459 |
+ " }\n"
|
lubomir@1020
|
460 |
+ " }\n"
|
lubomir@1020
|
461 |
+ " if (vm.loadClass) {\n"
|
lubomir@1020
|
462 |
+ " throw 'Cannot initialize the bck2brwsr VM twice!';\n"
|
lubomir@1020
|
463 |
+ " }\n"
|
lubomir@1020
|
464 |
+ " vm.loadClass = loader.loadClass;\n"
|
lubomir@1020
|
465 |
+ " vm.loadBytes = function(name) {\n"
|
lubomir@1020
|
466 |
+ " return vm.org_apidesign_vm4brwsr_VMLazy(false).\n"
|
lubomir@1020
|
467 |
+ " loadBytes___3BLjava_lang_Object_2Ljava_lang_String_2_3Ljava_lang_Object_2(loader, name, args);\n"
|
lubomir@1020
|
468 |
+ " }\n"
|
lubomir@1020
|
469 |
+ " vm.java_lang_reflect_Array(false);\n"
|
lubomir@1020
|
470 |
+ " vm.org_apidesign_vm4brwsr_VMLazy(false).\n"
|
lubomir@1020
|
471 |
+ " loadBytes___3BLjava_lang_Object_2Ljava_lang_String_2_3Ljava_lang_Object_2(loader, null, args);\n"
|
lubomir@1020
|
472 |
+ " return loader;\n"
|
lubomir@1020
|
473 |
+ " };\n");
|
lubomir@1029
|
474 |
out.append(
|
jaroslav@1489
|
475 |
" global.bck2brwsr.registerExtension = function(extension) {\n"
|
lubomir@1029
|
476 |
+ " extensions.push(extension);\n"
|
jaroslav@1489
|
477 |
+ " return null;\n"
|
lubomir@1029
|
478 |
+ " };\n");
|
lubomir@1020
|
479 |
out.append("}(this));");
|
lubomir@1020
|
480 |
}
|
lubomir@1020
|
481 |
|
lubomir@1020
|
482 |
@Override
|
lubomir@1094
|
483 |
protected String getExportsObject() {
|
lubomir@1094
|
484 |
return "vm";
|
lubomir@1029
|
485 |
}
|
lubomir@1029
|
486 |
|
lubomir@1029
|
487 |
@Override
|
lubomir@1094
|
488 |
protected boolean isExternalClass(String className) {
|
lubomir@1094
|
489 |
return false;
|
lubomir@1020
|
490 |
}
|
lubomir@1020
|
491 |
}
|
lubomir@1020
|
492 |
|
lubomir@1020
|
493 |
private static final class Extension extends VM {
|
lubomir@1094
|
494 |
private final StringArray extensionClasses;
|
lubomir@1094
|
495 |
|
lubomir@1094
|
496 |
private Extension(Appendable out, Bck2Brwsr.Resources resources,
|
jaroslav@1491
|
497 |
String[] extClassesArray, StringArray explicitlyExported) {
|
jaroslav@1491
|
498 |
super(out, resources, explicitlyExported);
|
lubomir@1094
|
499 |
this.extensionClasses = StringArray.asList(extClassesArray);
|
lubomir@1020
|
500 |
}
|
lubomir@1020
|
501 |
|
lubomir@1020
|
502 |
@Override
|
lubomir@1020
|
503 |
protected void generatePrologue() throws IOException {
|
lubomir@1020
|
504 |
out.append("bck2brwsr.registerExtension(function(exports) {\n"
|
lubomir@1020
|
505 |
+ " var vm = {};\n");
|
lubomir@1029
|
506 |
out.append(" function link(n, inst) {\n"
|
lubomir@1094
|
507 |
+ " var cls = n['replace__Ljava_lang_String_2CC']"
|
lubomir@1094
|
508 |
+ "('/', '_').toString();\n"
|
lubomir@1094
|
509 |
+ " var dot = n['replace__Ljava_lang_String_2CC']"
|
lubomir@1094
|
510 |
+ "('/', '.').toString();\n"
|
lubomir@1029
|
511 |
+ " exports.loadClass(dot);\n"
|
lubomir@1029
|
512 |
+ " vm[cls] = exports[cls];\n"
|
lubomir@1029
|
513 |
+ " return vm[cls](inst);\n"
|
lubomir@1029
|
514 |
+ " };\n");
|
lubomir@1020
|
515 |
}
|
lubomir@1020
|
516 |
|
lubomir@1020
|
517 |
@Override
|
lubomir@1020
|
518 |
protected void generateEpilogue() throws IOException {
|
lubomir@1020
|
519 |
out.append("});");
|
lubomir@1020
|
520 |
}
|
lubomir@1020
|
521 |
|
lubomir@1020
|
522 |
@Override
|
lubomir@1029
|
523 |
protected String generateClass(String className) throws IOException {
|
lubomir@1094
|
524 |
if (isExternalClass(className)) {
|
lubomir@1029
|
525 |
out.append("\n").append(assignClass(
|
lubomir@1029
|
526 |
className.replace('/', '_')))
|
lubomir@1029
|
527 |
.append("function() {\n return link('")
|
lubomir@1029
|
528 |
.append(className)
|
lubomir@1029
|
529 |
.append("', arguments.length == 0 || arguments[0] === true);"
|
lubomir@1029
|
530 |
+ "\n};");
|
lubomir@1029
|
531 |
|
lubomir@1029
|
532 |
return null;
|
lubomir@1029
|
533 |
}
|
lubomir@1029
|
534 |
|
lubomir@1094
|
535 |
return super.generateClass(className);
|
lubomir@1029
|
536 |
}
|
lubomir@1029
|
537 |
|
lubomir@1029
|
538 |
@Override
|
lubomir@1029
|
539 |
protected String getExportsObject() {
|
lubomir@1020
|
540 |
return "exports";
|
lubomir@1020
|
541 |
}
|
lubomir@1094
|
542 |
|
lubomir@1094
|
543 |
@Override
|
lubomir@1094
|
544 |
protected boolean isExternalClass(String className) {
|
lubomir@1094
|
545 |
return !extensionClasses.contains(className);
|
lubomir@1094
|
546 |
}
|
lubomir@869
|
547 |
}
|
jaroslav@29
|
548 |
}
|