2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.vm4brwsr;
20 import java.io.IOException;
21 import java.io.InputStream;
22 import static org.apidesign.vm4brwsr.ByteCodeParser.*;
24 /** Translator of the code inside class files to JavaScript.
26 * @author Jaroslav Tulach <jtulach@netbeans.org>
28 abstract class ByteCodeToJavaScript {
31 final ObfuscationDelegate obfuscationDelegate;
33 protected ByteCodeToJavaScript(Appendable out) {
34 this(out, ObfuscationDelegate.NULL);
37 protected ByteCodeToJavaScript(
38 Appendable out, ObfuscationDelegate obfuscationDelegate) {
40 this.obfuscationDelegate = obfuscationDelegate;
43 /* Collects additional required resources.
45 * @param internalClassName classes that were referenced and should be loaded in order the
46 * generated JavaScript code works properly. The names are in internal
47 * JVM form so String is <code>java/lang/String</code>.
49 protected abstract boolean requireReference(String internalClassName);
52 * @param resourcePath name of resources to read
54 protected abstract void requireScript(String resourcePath) throws IOException;
56 /** Allows subclasses to redefine what field a function representing a
57 * class gets assigned. By default it returns the suggested name followed
58 * by <code>" = "</code>;
60 * @param className suggested name of the class
62 /* protected */ String assignClass(String className) {
63 return className + " = ";
65 /* protected */ String accessClass(String classOperation) {
66 return classOperation;
69 abstract String getVMObject();
71 /** Prints out a debug message.
73 * @param msg the message
74 * @return true if the message has been printed
77 boolean debug(String msg) throws IOException {
83 * Converts a given class file to a JavaScript version.
85 * @param classFile input stream with code of the .class file
86 * @return the initialization code for this class, if any. Otherwise <code>null</code>
88 * @throws IOException if something goes wrong during read or write or translating
91 public String compile(InputStream classFile) throws IOException {
92 this.jc = new ClassData(classFile);
93 if (jc.getMajor_version() < 50) {
94 throw new IOException("Can't compile " + jc.getClassName() + ". Class file version " + jc.getMajor_version() + "."
95 + jc.getMinor_version() + " - recompile with -target 1.6 (at least)."
98 byte[] arrData = jc.findAnnotationData(true);
100 String[] arr = findAnnotation(arrData, jc,
101 "org.apidesign.bck2brwsr.core.ExtraJavaScript",
102 "resource", "processByteCode"
105 if (!arr[0].isEmpty()) {
106 requireScript(arr[0]);
108 if ("0".equals(arr[1])) {
114 String[] arr = findAnnotation(arrData, jc,
115 "net.java.html.js.JavaScriptResource",
119 if (arr[0].startsWith("/")) {
120 requireScript(arr[0]);
122 int last = jc.getClassName().lastIndexOf('/');
124 jc.getClassName().substring(0, last + 1).replace('.', '/') + arr[0]
129 String[] proto = findAnnotation(arrData, jc,
130 "org.apidesign.bck2brwsr.core.JavaScriptPrototype",
131 "container", "prototype"
133 StringArray toInitilize = new StringArray();
134 final String className = className(jc);
135 out.append("\n\n").append(assignClass(className));
136 out.append("function ").append(className).append("() {");
137 out.append("\n var CLS = ").append(className).append(';');
138 out.append("\n if (!CLS.$class) {");
140 String sc = jc.getSuperClassName(); // with _
141 out.append("\n var pp = ").
142 append(accessClass(sc.replace('/', '_'))).append("(true);");
143 out.append("\n var p = CLS.prototype = pp;");
144 out.append("\n var c = p;");
145 out.append("\n var sprcls = pp.constructor.$class;");
147 out.append("\n var p = CLS.prototype = ").append(proto[1]).append(";");
148 if (proto[0] == null) {
151 out.append("\n var c = ").append(proto[0]).append(";");
152 out.append("\n var sprcls = null;");
154 for (FieldData v : jc.getFields()) {
156 out.append("\n CLS.").append(v.getName()).append(initField(v));
157 out.append("\n c._").append(v.getName()).append(" = function (v) {")
158 .append(" if (arguments.length == 1) CLS.").append(v.getName())
159 .append(" = v; return CLS.").
160 append(v.getName()).append("; };");
162 out.append("\n c._").append(v.getName()).append(" = function (v) {")
163 .append(" if (arguments.length == 1) this.fld_").
164 append(className).append('_').append(v.getName())
165 .append(" = v; return this.fld_").
166 append(className).append('_').append(v.getName())
170 obfuscationDelegate.exportField(out, "c", "_" + v.getName(), v);
172 for (MethodData m : jc.getMethods()) {
173 byte[] onlyArr = m.findAnnotationData(true);
174 String[] only = findAnnotation(onlyArr, jc,
175 "org.apidesign.bck2brwsr.core.JavaScriptOnly",
179 if (only[0] != null && only[1] != null) {
180 out.append("\n p.").append(only[0]).append(" = ")
181 .append(only[1]).append(";");
190 mn = generateStaticMethod(destObject, m, toInitilize);
192 if (m.isConstructor()) {
194 mn = generateInstanceMethod(destObject, m);
197 mn = generateInstanceMethod(destObject, m);
200 obfuscationDelegate.exportMethod(out, destObject, mn, m);
201 byte[] runAnno = m.findAnnotationData(false);
202 if (runAnno != null) {
203 out.append("\n ").append(destObject).append(".").append(mn).append(".anno = {");
204 generateAnno(jc, out, runAnno);
207 out.append("\n ").append(destObject).append(".").append(mn).append(".access = " + m.getAccess()).append(";");
208 out.append("\n ").append(destObject).append(".").append(mn).append(".cls = CLS;");
210 out.append("\n c.constructor = CLS;");
211 String instOfName = "$instOf_" + className;
212 out.append("\n c.").append(instOfName).append(" = true;");
213 obfuscationDelegate.exportJSProperty(out, "c", instOfName);
214 for (String superInterface : jc.getSuperInterfaces()) {
215 instOfName = "$instOf_" + superInterface.replace('/', '_');
216 out.append("\n c.").append(instOfName).append(" = true;");
217 obfuscationDelegate.exportJSProperty(out, "c", instOfName);
219 out.append("\n CLS.$class = 'temp';");
220 out.append("\n CLS.$class = ");
221 out.append(accessClass("java_lang_Class(true);"));
222 out.append("\n CLS.$class.jvmName = '").append(jc.getClassName()).append("';");
223 out.append("\n CLS.$class.superclass = sprcls;");
224 out.append("\n CLS.$class.access = ").append(jc.getAccessFlags()+";");
225 out.append("\n CLS.$class.cnstr = CLS;");
226 byte[] classAnno = jc.findAnnotationData(false);
227 if (classAnno != null) {
228 out.append("\n CLS.$class.anno = {");
229 generateAnno(jc, out, classAnno);
232 for (String init : toInitilize.toArray()) {
233 out.append("\n ").append(init).append("();");
236 out.append("\n if (arguments.length === 0) {");
237 out.append("\n if (!(this instanceof CLS)) {");
238 out.append("\n return new CLS();");
240 for (FieldData v : jc.getFields()) {
241 byte[] onlyArr = v.findAnnotationData(true);
242 String[] only = findAnnotation(onlyArr, jc,
243 "org.apidesign.bck2brwsr.core.JavaScriptOnly",
247 if (only[0] != null && only[1] != null) {
248 out.append("\n p.").append(only[0]).append(" = ")
249 .append(only[1]).append(";");
254 out.append("\n this.fld_").
255 append(className).append('_').
256 append(v.getName()).append(initField(v));
259 out.append("\n return this;");
261 out.append("\n return arguments[0] ? new CLS() : CLS.prototype;");
264 obfuscationDelegate.exportClass(out, getVMObject(), className, jc);
266 // StringBuilder sb = new StringBuilder();
267 // for (String init : toInitilize.toArray()) {
268 // sb.append("\n").append(init).append("();");
272 private String generateStaticMethod(String destObject, MethodData m, StringArray toInitilize) throws IOException {
273 String jsb = javaScriptBody(destObject, m, true);
277 final String mn = findMethodName(m, new StringBuilder());
278 if (mn.equals("class__V")) {
279 toInitilize.add(accessClass(className(jc)) + "(false)." + mn);
281 generateMethod(destObject, mn, m);
285 private String generateInstanceMethod(String destObject, MethodData m) throws IOException {
286 String jsb = javaScriptBody(destObject, m, false);
290 final String mn = findMethodName(m, new StringBuilder());
291 generateMethod(destObject, mn, m);
295 private void generateMethod(String destObject, String name, MethodData m)
297 final StackMapIterator stackMapIterator = m.createStackMapIterator();
298 TrapDataIterator trap = m.getTrapDataIterator();
299 final LocalsMapper lmapper =
300 new LocalsMapper(stackMapIterator.getArguments());
302 out.append(destObject).append(".").append(name).append(" = function(");
303 lmapper.outputArguments(out, m.isStatic());
304 out.append(") {").append("\n");
306 final byte[] byteCodes = m.getCode();
307 if (byteCodes == null) {
308 out.append(" throw 'no code found for ")
309 .append(jc.getClassName()).append('.')
310 .append(m.getName()).append("';\n");
315 final StackMapper smapper = new StackMapper();
318 out.append(" var ").append(" lcA0 = this;\n");
321 int lastStackFrame = -1;
322 TrapData[] previousTrap = null;
323 boolean wide = false;
325 out.append("\n var gt = 0;\n");
327 int topMostLabel = 0;
328 for (int i = 0; i < byteCodes.length; i++) {
330 stackMapIterator.advanceTo(i);
331 boolean changeInCatch = trap.advanceTo(i);
332 if (changeInCatch || lastStackFrame != stackMapIterator.getFrameIndex()) {
333 if (previousTrap != null) {
334 generateCatch(previousTrap, i, topMostLabel);
338 if (lastStackFrame != stackMapIterator.getFrameIndex()) {
342 if (openBraces > 64) {
343 for (int c = 0; c < 64; c++) {
344 out.append("break;}\n");
350 lastStackFrame = stackMapIterator.getFrameIndex();
351 lmapper.syncWithFrameLocals(stackMapIterator.getFrameLocals());
352 smapper.syncWithFrameStack(stackMapIterator.getFrameStack());
353 out.append(" X_" + i).append(": for (;;) { IF: if (gt <= " + i + ") {\n");
355 changeInCatch = true;
357 debug(" /* " + i + " */ ");
359 if (changeInCatch && trap.useTry()) {
361 previousTrap = trap.current();
363 final int c = readUByte(byteCodes, i);
366 emit(out, "var @1 = @2;", smapper.pushA(), lmapper.getA(0));
369 emit(out, "var @1 = @2;", smapper.pushI(), lmapper.getI(0));
372 emit(out, "var @1 = @2;", smapper.pushL(), lmapper.getL(0));
375 emit(out, "var @1 = @2;", smapper.pushF(), lmapper.getF(0));
378 emit(out, "var @1 = @2;", smapper.pushD(), lmapper.getD(0));
381 emit(out, "var @1 = @2;", smapper.pushA(), lmapper.getA(1));
384 emit(out, "var @1 = @2;", smapper.pushI(), lmapper.getI(1));
387 emit(out, "var @1 = @2;", smapper.pushL(), lmapper.getL(1));
390 emit(out, "var @1 = @2;", smapper.pushF(), lmapper.getF(1));
393 emit(out, "var @1 = @2;", smapper.pushD(), lmapper.getD(1));
396 emit(out, "var @1 = @2;", smapper.pushA(), lmapper.getA(2));
399 emit(out, "var @1 = @2;", smapper.pushI(), lmapper.getI(2));
402 emit(out, "var @1 = @2;", smapper.pushL(), lmapper.getL(2));
405 emit(out, "var @1 = @2;", smapper.pushF(), lmapper.getF(2));
408 emit(out, "var @1 = @2;", smapper.pushD(), lmapper.getD(2));
411 emit(out, "var @1 = @2;", smapper.pushA(), lmapper.getA(3));
414 emit(out, "var @1 = @2;", smapper.pushI(), lmapper.getI(3));
417 emit(out, "var @1 = @2;", smapper.pushL(), lmapper.getL(3));
420 emit(out, "var @1 = @2;", smapper.pushF(), lmapper.getF(3));
423 emit(out, "var @1 = @2;", smapper.pushD(), lmapper.getD(3));
427 final int indx = wide ? readUShort(byteCodes, i++)
428 : readUByte(byteCodes, i);
430 emit(out, "var @1 = @2;",
431 smapper.pushI(), lmapper.getI(indx));
436 final int indx = wide ? readUShort(byteCodes, i++)
437 : readUByte(byteCodes, i);
439 emit(out, "var @1 = @2;",
440 smapper.pushL(), lmapper.getL(indx));
445 final int indx = wide ? readUShort(byteCodes, i++)
446 : readUByte(byteCodes, i);
448 emit(out, "var @1 = @2;",
449 smapper.pushF(), lmapper.getF(indx));
454 final int indx = wide ? readUShort(byteCodes, i++)
455 : readUByte(byteCodes, i);
457 emit(out, "var @1 = @2;",
458 smapper.pushD(), lmapper.getD(indx));
463 final int indx = wide ? readUShort(byteCodes, i++)
464 : readUByte(byteCodes, i);
466 emit(out, "var @1 = @2;",
467 smapper.pushA(), lmapper.getA(indx));
472 final int indx = wide ? readUShort(byteCodes, i++)
473 : readUByte(byteCodes, i);
475 emit(out, "var @1 = @2;",
476 lmapper.setI(indx), smapper.popI());
481 final int indx = wide ? readUShort(byteCodes, i++)
482 : readUByte(byteCodes, i);
484 emit(out, "var @1 = @2;",
485 lmapper.setL(indx), smapper.popL());
490 final int indx = wide ? readUShort(byteCodes, i++)
491 : readUByte(byteCodes, i);
493 emit(out, "var @1 = @2;",
494 lmapper.setF(indx), smapper.popF());
499 final int indx = wide ? readUShort(byteCodes, i++)
500 : readUByte(byteCodes, i);
502 emit(out, "var @1 = @2;",
503 lmapper.setD(indx), smapper.popD());
508 final int indx = wide ? readUShort(byteCodes, i++)
509 : readUByte(byteCodes, i);
511 emit(out, "var @1 = @2;",
512 lmapper.setA(indx), smapper.popA());
516 emit(out, "var @1 = @2;", lmapper.setA(0), smapper.popA());
519 emit(out, "var @1 = @2;", lmapper.setI(0), smapper.popI());
522 emit(out, "var @1 = @2;", lmapper.setL(0), smapper.popL());
525 emit(out, "var @1 = @2;", lmapper.setF(0), smapper.popF());
528 emit(out, "var @1 = @2;", lmapper.setD(0), smapper.popD());
531 emit(out, "var @1 = @2;", lmapper.setA(1), smapper.popA());
534 emit(out, "var @1 = @2;", lmapper.setI(1), smapper.popI());
537 emit(out, "var @1 = @2;", lmapper.setL(1), smapper.popL());
540 emit(out, "var @1 = @2;", lmapper.setF(1), smapper.popF());
543 emit(out, "var @1 = @2;", lmapper.setD(1), smapper.popD());
546 emit(out, "var @1 = @2;", lmapper.setA(2), smapper.popA());
549 emit(out, "var @1 = @2;", lmapper.setI(2), smapper.popI());
552 emit(out, "var @1 = @2;", lmapper.setL(2), smapper.popL());
555 emit(out, "var @1 = @2;", lmapper.setF(2), smapper.popF());
558 emit(out, "var @1 = @2;", lmapper.setD(2), smapper.popD());
561 emit(out, "var @1 = @2;", lmapper.setA(3), smapper.popA());
564 emit(out, "var @1 = @2;", lmapper.setI(3), smapper.popI());
567 emit(out, "var @1 = @2;", lmapper.setL(3), smapper.popL());
570 emit(out, "var @1 = @2;", lmapper.setF(3), smapper.popF());
573 emit(out, "var @1 = @2;", lmapper.setD(3), smapper.popD());
576 emit(out, "@1 = @1.add32(@2);", smapper.getI(1), smapper.popI());
579 emit(out, "@1 = @1.add64(@2);", smapper.getL(1), smapper.popL());
582 emit(out, "@1 += @2;", smapper.getF(1), smapper.popF());
585 emit(out, "@1 += @2;", smapper.getD(1), smapper.popD());
588 emit(out, "@1 = @1.sub32(@2);", smapper.getI(1), smapper.popI());
591 emit(out, "@1 = @1.sub64(@2);", smapper.getL(1), smapper.popL());
594 emit(out, "@1 -= @2;", smapper.getF(1), smapper.popF());
597 emit(out, "@1 -= @2;", smapper.getD(1), smapper.popD());
600 emit(out, "@1 = @1.mul32(@2);", smapper.getI(1), smapper.popI());
603 emit(out, "@1 = @1.mul64(@2);", smapper.getL(1), smapper.popL());
606 emit(out, "@1 *= @2;", smapper.getF(1), smapper.popF());
609 emit(out, "@1 *= @2;", smapper.getD(1), smapper.popD());
612 emit(out, "@1 = @1.div32(@2);",
613 smapper.getI(1), smapper.popI());
616 emit(out, "@1 = @1.div64(@2);",
617 smapper.getL(1), smapper.popL());
620 emit(out, "@1 /= @2;", smapper.getF(1), smapper.popF());
623 emit(out, "@1 /= @2;", smapper.getD(1), smapper.popD());
626 emit(out, "@1 = @1.mod32(@2);",
627 smapper.getI(1), smapper.popI());
630 emit(out, "@1 = @1.mod64(@2);",
631 smapper.getL(1), smapper.popL());
634 emit(out, "@1 %= @2;", smapper.getF(1), smapper.popF());
637 emit(out, "@1 %= @2;", smapper.getD(1), smapper.popD());
640 emit(out, "@1 &= @2;", smapper.getI(1), smapper.popI());
643 emit(out, "@1 = @1.and64(@2);", smapper.getL(1), smapper.popL());
646 emit(out, "@1 |= @2;", smapper.getI(1), smapper.popI());
649 emit(out, "@1 = @1.or64(@2);", smapper.getL(1), smapper.popL());
652 emit(out, "@1 ^= @2;", smapper.getI(1), smapper.popI());
655 emit(out, "@1 = @1.xor64(@2);", smapper.getL(1), smapper.popL());
658 emit(out, "@1 = @1.neg32();", smapper.getI(0));
661 emit(out, "@1 = @1.neg64();", smapper.getL(0));
664 emit(out, "@1 = -@1;", smapper.getF(0));
667 emit(out, "@1 = -@1;", smapper.getD(0));
670 emit(out, "@1 <<= @2;", smapper.getI(1), smapper.popI());
673 emit(out, "@1 = @1.shl64(@2);", smapper.getL(1), smapper.popI());
676 emit(out, "@1 >>= @2;", smapper.getI(1), smapper.popI());
679 emit(out, "@1 = @1.shr64(@2);", smapper.getL(1), smapper.popI());
682 emit(out, "@1 >>>= @2;", smapper.getI(1), smapper.popI());
685 emit(out, "@1 = @1.ushr64(@2);", smapper.getL(1), smapper.popI());
689 final int varIndx = wide ? readUShort(byteCodes, i++)
690 : readUByte(byteCodes, i);
692 final int incrBy = wide ? readShort(byteCodes, i++)
696 emit(out, "@1++;", lmapper.getI(varIndx));
698 emit(out, "@1 += @2;",
699 lmapper.getI(varIndx),
700 Integer.toString(incrBy));
705 emit(out, "return;");
708 emit(out, "return @1;", smapper.popI());
711 emit(out, "return @1;", smapper.popL());
714 emit(out, "return @1;", smapper.popF());
717 emit(out, "return @1;", smapper.popD());
720 emit(out, "return @1;", smapper.popA());
723 emit(out, "var @2 = @1;", smapper.popI(), smapper.pushL());
726 emit(out, "var @2 = @1;", smapper.popI(), smapper.pushF());
729 emit(out, "var @2 = @1;", smapper.popI(), smapper.pushD());
732 emit(out, "var @2 = @1.toInt32();", smapper.popL(), smapper.pushI());
736 emit(out, "var @2 = @1.toFP();", smapper.popL(), smapper.pushF());
739 emit(out, "var @2 = @1.toFP();", smapper.popL(), smapper.pushD());
742 emit(out, "var @2 = @1;", smapper.popF(), smapper.pushD());
745 emit(out, "var @2 = @1;", smapper.popD(), smapper.pushF());
748 emit(out, "var @2 = @1.toInt32();",
749 smapper.popF(), smapper.pushI());
752 emit(out, "var @2 = @1.toLong();",
753 smapper.popF(), smapper.pushL());
756 emit(out, "var @2 = @1.toInt32();",
757 smapper.popD(), smapper.pushI());
760 emit(out, "var @2 = @1.toLong();",
761 smapper.popD(), smapper.pushL());
764 emit(out, "var @1 = @1.toInt8();", smapper.getI(0));
767 out.append("{ /* number conversion */ }");
770 emit(out, "var @1 = @1.toInt16();", smapper.getI(0));
772 case opc_aconst_null:
773 emit(out, "var @1 = null;", smapper.pushA());
776 emit(out, "var @1 = -1;", smapper.pushI());
779 emit(out, "var @1 = 0;", smapper.pushI());
782 emit(out, "var @1 = 0;", smapper.pushD());
785 emit(out, "var @1 = 0;", smapper.pushL());
788 emit(out, "var @1 = 0;", smapper.pushF());
791 emit(out, "var @1 = 1;", smapper.pushI());
794 emit(out, "var @1 = 1;", smapper.pushL());
797 emit(out, "var @1 = 1;", smapper.pushF());
800 emit(out, "var @1 = 1;", smapper.pushD());
803 emit(out, "var @1 = 2;", smapper.pushI());
806 emit(out, "var @1 = 2;", smapper.pushF());
809 emit(out, "var @1 = 3;", smapper.pushI());
812 emit(out, "var @1 = 4;", smapper.pushI());
815 emit(out, "var @1 = 5;", smapper.pushI());
818 int indx = readUByte(byteCodes, ++i);
819 String v = encodeConstant(indx);
820 int type = VarType.fromConstantType(jc.getTag(indx));
821 emit(out, "var @1 = @2;", smapper.pushT(type), v);
826 int indx = readUShortArg(byteCodes, i);
828 String v = encodeConstant(indx);
829 int type = VarType.fromConstantType(jc.getTag(indx));
830 if (type == VarType.LONG) {
831 final Long lv = new Long(v);
832 final int low = (int)(lv.longValue() & 0xFFFFFFFF);
833 final int hi = (int)(lv.longValue() >> 32);
834 emit(out, "var @1 = 0x@3.next32(0x@2);", smapper.pushL(),
835 Integer.toHexString(low), Integer.toHexString(hi));
837 emit(out, "var @1 = @2;", smapper.pushT(type), v);
842 emit(out, "var @3 = @2.compare64(@1);",
843 smapper.popL(), smapper.popL(), smapper.pushI());
847 emit(out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
848 smapper.popF(), smapper.popF(), smapper.pushI());
852 emit(out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
853 smapper.popD(), smapper.popD(), smapper.pushI());
856 i = generateIf(byteCodes, i, smapper.popA(), smapper.popA(),
857 "===", topMostLabel);
860 i = generateIf(byteCodes, i, smapper.popA(), smapper.popA(),
861 "!==", topMostLabel);
864 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
868 int indx = i + readShortArg(byteCodes, i);
869 emitIf(out, "if (@1 == 0) ",
870 smapper.popI(), i, indx, topMostLabel);
875 int indx = i + readShortArg(byteCodes, i);
876 emitIf(out, "if (@1 != 0) ",
877 smapper.popI(), i, indx, topMostLabel);
882 int indx = i + readShortArg(byteCodes, i);
883 emitIf(out, "if (@1 < 0) ",
884 smapper.popI(), i, indx, topMostLabel);
889 int indx = i + readShortArg(byteCodes, i);
890 emitIf(out, "if (@1 <= 0) ",
891 smapper.popI(), i, indx, topMostLabel);
896 int indx = i + readShortArg(byteCodes, i);
897 emitIf(out, "if (@1 > 0) ",
898 smapper.popI(), i, indx, topMostLabel);
903 int indx = i + readShortArg(byteCodes, i);
904 emitIf(out, "if (@1 >= 0) ",
905 smapper.popI(), i, indx, topMostLabel);
909 case opc_ifnonnull: {
910 int indx = i + readShortArg(byteCodes, i);
911 emitIf(out, "if (@1 !== null) ",
912 smapper.popA(), i, indx, topMostLabel);
917 int indx = i + readShortArg(byteCodes, i);
918 emitIf(out, "if (@1 === null) ",
919 smapper.popA(), i, indx, topMostLabel);
924 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
928 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
932 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
936 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
940 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
944 int indx = i + readShortArg(byteCodes, i);
945 goTo(out, i, indx, topMostLabel);
949 case opc_lookupswitch: {
950 i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);
953 case opc_tableswitch: {
954 i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);
957 case opc_invokeinterface: {
958 i = invokeVirtualMethod(byteCodes, i, smapper) + 2;
961 case opc_invokevirtual:
962 i = invokeVirtualMethod(byteCodes, i, smapper);
964 case opc_invokespecial:
965 i = invokeStaticMethod(byteCodes, i, smapper, false);
967 case opc_invokestatic:
968 i = invokeStaticMethod(byteCodes, i, smapper, true);
971 int indx = readUShortArg(byteCodes, i);
972 String ci = jc.getClassName(indx);
973 emit(out, "var @1 = new @2;",
974 smapper.pushA(), accessClass(ci.replace('/', '_')));
980 int atype = readUByte(byteCodes, ++i);
981 generateNewArray(atype, smapper);
983 case opc_anewarray: {
984 int type = readUShortArg(byteCodes, i);
986 generateANewArray(type, smapper);
989 case opc_multianewarray: {
990 int type = readUShortArg(byteCodes, i);
992 i = generateMultiANewArray(type, byteCodes, i, smapper);
995 case opc_arraylength:
996 emit(out, "var @2 = @1.length;",
997 smapper.popA(), smapper.pushI());
1000 emit(out, "@3.at(@2, @1);",
1001 smapper.popL(), smapper.popI(), smapper.popA());
1004 emit(out, "@3.at(@2, @1);",
1005 smapper.popF(), smapper.popI(), smapper.popA());
1008 emit(out, "@3.at(@2, @1);",
1009 smapper.popD(), smapper.popI(), smapper.popA());
1012 emit(out, "@3.at(@2, @1);",
1013 smapper.popA(), smapper.popI(), smapper.popA());
1019 emit(out, "@3.at(@2, @1);",
1020 smapper.popI(), smapper.popI(), smapper.popA());
1023 emit(out, "var @3 = @2.at(@1);",
1024 smapper.popI(), smapper.popA(), smapper.pushL());
1027 emit(out, "var @3 = @2.at(@1);",
1028 smapper.popI(), smapper.popA(), smapper.pushF());
1031 emit(out, "var @3 = @2.at(@1);",
1032 smapper.popI(), smapper.popA(), smapper.pushD());
1035 emit(out, "var @3 = @2.at(@1);",
1036 smapper.popI(), smapper.popA(), smapper.pushA());
1042 emit(out, "var @3 = @2.at(@1);",
1043 smapper.popI(), smapper.popA(), smapper.pushI());
1051 final Variable v = smapper.get(0);
1052 emit(out, "var @1 = @2;", smapper.pushT(v.getType()), v);
1056 final Variable vi1 = smapper.get(0);
1058 if (vi1.isCategory2()) {
1059 emit(out, "var @1 = @2;",
1060 smapper.pushT(vi1.getType()), vi1);
1062 final Variable vi2 = smapper.get(1);
1063 emit(out, "var @1 = @2, @3 = @4;",
1064 smapper.pushT(vi2.getType()), vi2,
1065 smapper.pushT(vi1.getType()), vi1);
1070 final Variable vi1 = smapper.pop();
1071 final Variable vi2 = smapper.pop();
1072 final Variable vo3 = smapper.pushT(vi1.getType());
1073 final Variable vo2 = smapper.pushT(vi2.getType());
1074 final Variable vo1 = smapper.pushT(vi1.getType());
1076 emit(out, "var @1 = @2, @3 = @4, @5 = @6;",
1077 vo1, vi1, vo2, vi2, vo3, vo1);
1081 final Variable vi1 = smapper.pop();
1082 final Variable vi2 = smapper.pop();
1084 if (vi1.isCategory2()) {
1085 final Variable vo3 = smapper.pushT(vi1.getType());
1086 final Variable vo2 = smapper.pushT(vi2.getType());
1087 final Variable vo1 = smapper.pushT(vi1.getType());
1089 emit(out, "var @1 = @2, @3 = @4, @5 = @6;",
1090 vo1, vi1, vo2, vi2, vo3, vo1);
1092 final Variable vi3 = smapper.pop();
1093 final Variable vo5 = smapper.pushT(vi2.getType());
1094 final Variable vo4 = smapper.pushT(vi1.getType());
1095 final Variable vo3 = smapper.pushT(vi3.getType());
1096 final Variable vo2 = smapper.pushT(vi2.getType());
1097 final Variable vo1 = smapper.pushT(vi1.getType());
1099 emit(out, "var @1 = @2, @3 = @4, @5 = @6,",
1100 vo1, vi1, vo2, vi2, vo3, vi3);
1101 emit(out, " @1 = @2, @3 = @4;",
1102 vo4, vo1, vo5, vo2);
1107 final Variable vi1 = smapper.pop();
1108 final Variable vi2 = smapper.pop();
1110 if (vi2.isCategory2()) {
1111 final Variable vo3 = smapper.pushT(vi1.getType());
1112 final Variable vo2 = smapper.pushT(vi2.getType());
1113 final Variable vo1 = smapper.pushT(vi1.getType());
1115 emit(out, "var @1 = @2, @3 = @4, @5 = @6;",
1116 vo1, vi1, vo2, vi2, vo3, vo1);
1118 final Variable vi3 = smapper.pop();
1119 final Variable vo4 = smapper.pushT(vi1.getType());
1120 final Variable vo3 = smapper.pushT(vi3.getType());
1121 final Variable vo2 = smapper.pushT(vi2.getType());
1122 final Variable vo1 = smapper.pushT(vi1.getType());
1124 emit(out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1125 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1130 final Variable vi1 = smapper.pop();
1131 final Variable vi2 = smapper.pop();
1133 if (vi1.isCategory2()) {
1134 if (vi2.isCategory2()) {
1135 final Variable vo3 = smapper.pushT(vi1.getType());
1136 final Variable vo2 = smapper.pushT(vi2.getType());
1137 final Variable vo1 = smapper.pushT(vi1.getType());
1139 emit(out, "var @1 = @2, @3 = @4, @5 = @6;",
1140 vo1, vi1, vo2, vi2, vo3, vo1);
1142 final Variable vi3 = smapper.pop();
1143 final Variable vo4 = smapper.pushT(vi1.getType());
1144 final Variable vo3 = smapper.pushT(vi3.getType());
1145 final Variable vo2 = smapper.pushT(vi2.getType());
1146 final Variable vo1 = smapper.pushT(vi1.getType());
1148 emit(out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1149 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1152 final Variable vi3 = smapper.pop();
1154 if (vi3.isCategory2()) {
1155 final Variable vo5 = smapper.pushT(vi2.getType());
1156 final Variable vo4 = smapper.pushT(vi1.getType());
1157 final Variable vo3 = smapper.pushT(vi3.getType());
1158 final Variable vo2 = smapper.pushT(vi2.getType());
1159 final Variable vo1 = smapper.pushT(vi1.getType());
1161 emit(out, "var @1 = @2, @3 = @4, @5 = @6,",
1162 vo1, vi1, vo2, vi2, vo3, vi3);
1163 emit(out, " @1 = @2, @3 = @4;",
1164 vo4, vo1, vo5, vo2);
1166 final Variable vi4 = smapper.pop();
1167 final Variable vo6 = smapper.pushT(vi2.getType());
1168 final Variable vo5 = smapper.pushT(vi1.getType());
1169 final Variable vo4 = smapper.pushT(vi4.getType());
1170 final Variable vo3 = smapper.pushT(vi3.getType());
1171 final Variable vo2 = smapper.pushT(vi2.getType());
1172 final Variable vo1 = smapper.pushT(vi1.getType());
1174 emit(out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",
1175 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);
1176 emit(out, " @1 = @2, @3 = @4;",
1177 vo5, vo1, vo6, vo2);
1183 final Variable vi1 = smapper.get(0);
1184 final Variable vi2 = smapper.get(1);
1186 if (vi1.getType() == vi2.getType()) {
1187 final Variable tmp = smapper.pushT(vi1.getType());
1189 emit(out, "var @1 = @2, @2 = @3, @3 = @1;",
1194 smapper.pushT(vi1.getType());
1195 smapper.pushT(vi2.getType());
1200 emit(out, "var @1 = @2;",
1201 smapper.pushI(), Integer.toString(byteCodes[++i]));
1204 emit(out, "var @1 = @2;",
1206 Integer.toString(readShortArg(byteCodes, i)));
1209 case opc_getfield: {
1210 int indx = readUShortArg(byteCodes, i);
1211 String[] fi = jc.getFieldInfoName(indx);
1212 final int type = VarType.fromFieldType(fi[2].charAt(0));
1213 final String mangleClass = mangleSig(fi[0]);
1214 final String mangleClassAccess = accessClass(mangleClass);
1215 emit(out, "var @2 = @4(false)._@3.call(@1);",
1217 smapper.pushT(type), fi[1], mangleClassAccess
1222 case opc_putfield: {
1223 int indx = readUShortArg(byteCodes, i);
1224 String[] fi = jc.getFieldInfoName(indx);
1225 final int type = VarType.fromFieldType(fi[2].charAt(0));
1226 final String mangleClass = mangleSig(fi[0]);
1227 final String mangleClassAccess = accessClass(mangleClass);
1228 emit(out, "@4(false)._@3.call(@2, @1);",
1230 smapper.popA(), fi[1],
1236 case opc_getstatic: {
1237 int indx = readUShortArg(byteCodes, i);
1238 String[] fi = jc.getFieldInfoName(indx);
1239 final int type = VarType.fromFieldType(fi[2].charAt(0));
1240 emit(out, "var @1 = @2(false)._@3();",
1241 smapper.pushT(type),
1242 accessClass(fi[0].replace('/', '_')), fi[1]);
1244 addReference(fi[0]);
1247 case opc_putstatic: {
1248 int indx = readUShortArg(byteCodes, i);
1249 String[] fi = jc.getFieldInfoName(indx);
1250 final int type = VarType.fromFieldType(fi[2].charAt(0));
1251 emit(out, "@1(false)._@2(@3);",
1252 accessClass(fi[0].replace('/', '_')), fi[1],
1253 smapper.popT(type));
1255 addReference(fi[0]);
1258 case opc_checkcast: {
1259 int indx = readUShortArg(byteCodes, i);
1260 generateCheckcast(indx, smapper);
1264 case opc_instanceof: {
1265 int indx = readUShortArg(byteCodes, i);
1266 generateInstanceOf(indx, smapper);
1271 final Variable v = smapper.popA();
1274 emit(out, "{ var @1 = @2; throw @2; }",
1275 smapper.pushA(), v);
1279 case opc_monitorenter: {
1280 out.append("/* monitor enter */");
1285 case opc_monitorexit: {
1286 out.append("/* monitor exit */");
1297 emit(out, "throw 'unknown bytecode @1';",
1298 Integer.toString(c));
1302 generateByteCodeComment(prev, i, byteCodes);
1306 if (previousTrap != null) {
1307 generateCatch(previousTrap, byteCodes.length, topMostLabel);
1309 out.append("\n }\n");
1310 while (openBraces-- > 0) {
1316 private int generateIf(byte[] byteCodes, int i, final Variable v2, final Variable v1, final String test, int topMostLabel) throws IOException {
1317 int indx = i + readShortArg(byteCodes, i);
1318 out.append("if (").append(v1)
1319 .append(' ').append(test).append(' ')
1320 .append(v2).append(") ");
1321 goTo(out, i, indx, topMostLabel);
1325 private int readInt4(byte[] byteCodes, int offset) {
1326 final int d = byteCodes[offset + 0] << 24;
1327 final int c = byteCodes[offset + 1] << 16;
1328 final int b = byteCodes[offset + 2] << 8;
1329 final int a = byteCodes[offset + 3];
1330 return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);
1332 private static int readUByte(byte[] byteCodes, int offset) {
1333 return byteCodes[offset] & 0xff;
1336 private static int readUShort(byte[] byteCodes, int offset) {
1337 return ((byteCodes[offset] & 0xff) << 8)
1338 | (byteCodes[offset + 1] & 0xff);
1340 private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {
1341 return readUShort(byteCodes, offsetInstruction + 1);
1344 private static int readShort(byte[] byteCodes, int offset) {
1345 int signed = byteCodes[offset];
1346 byte b0 = (byte)signed;
1347 return (b0 << 8) | (byteCodes[offset + 1] & 0xff);
1349 private static int readShortArg(byte[] byteCodes, int offsetInstruction) {
1350 return readShort(byteCodes, offsetInstruction + 1);
1353 private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {
1355 Boolean count = null;
1356 boolean array = false;
1358 int firstPos = sig.length();
1359 while (i < descriptor.length()) {
1360 char ch = descriptor.charAt(i++);
1381 if (ch == 'J' || ch == 'D') {
1387 sig.insert(firstPos, ch);
1389 returnType[0] = '[';
1390 sig.insert(firstPos, "_3");
1399 returnType[0] = 'V';
1400 sig.insert(firstPos, 'V');
1403 int next = descriptor.indexOf(';', i);
1404 String realSig = mangleSig(descriptor, i - 1, next + 1);
1409 sig.append(realSig);
1412 sig.insert(firstPos, realSig);
1414 sig.insert(firstPos, "_3");
1416 returnType[0] = 'L';
1425 throw new IllegalStateException("Invalid char: " + ch);
1430 static String mangleSig(String sig) {
1431 return mangleSig(sig, 0, sig.length());
1434 private static String mangleSig(String txt, int first, int last) {
1435 StringBuilder sb = new StringBuilder();
1436 for (int i = first; i < last; i++) {
1437 final char ch = txt.charAt(i);
1439 case '/': sb.append('_'); break;
1440 case '_': sb.append("_1"); break;
1441 case ';': sb.append("_2"); break;
1442 case '[': sb.append("_3"); break;
1443 default: sb.append(ch); break;
1446 return sb.toString();
1449 private static String findMethodName(MethodData m, StringBuilder cnt) {
1450 StringBuilder name = new StringBuilder();
1451 if ("<init>".equals(m.getName())) { // NOI18N
1452 name.append("cons"); // NOI18N
1453 } else if ("<clinit>".equals(m.getName())) { // NOI18N
1454 name.append("class"); // NOI18N
1456 name.append(m.getName());
1459 countArgs(m.getInternalSig(), new char[1], name, cnt);
1460 return name.toString();
1463 static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {
1464 StringBuilder name = new StringBuilder();
1465 String descr = mi[2];//mi.getDescriptor();
1467 if ("<init>".equals(nm)) { // NOI18N
1468 name.append("cons"); // NOI18N
1472 countArgs(descr, returnType, name, cnt);
1473 return name.toString();
1476 private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)
1477 throws IOException {
1478 int methodIndex = readUShortArg(byteCodes, i);
1479 String[] mi = jc.getFieldInfoName(methodIndex);
1480 char[] returnType = { 'V' };
1481 StringBuilder cnt = new StringBuilder();
1482 String mn = findMethodName(mi, cnt, returnType);
1484 final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;
1485 final Variable[] vars = new Variable[numArguments];
1487 for (int j = numArguments - 1; j >= 0; --j) {
1488 vars[j] = mapper.pop();
1491 if (returnType[0] != 'V') {
1493 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1497 final String in = mi[0];
1498 out.append(accessClass(in.replace('/', '_')));
1499 out.append("(false).");
1500 if (mn.startsWith("cons_")) {
1501 out.append("constructor.");
1507 out.append(".call(");
1509 if (numArguments > 0) {
1510 out.append(vars[0]);
1511 for (int j = 1; j < numArguments; ++j) {
1513 out.append(vars[j]);
1521 private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)
1522 throws IOException {
1523 int methodIndex = readUShortArg(byteCodes, i);
1524 String[] mi = jc.getFieldInfoName(methodIndex);
1525 char[] returnType = { 'V' };
1526 StringBuilder cnt = new StringBuilder();
1527 String mn = findMethodName(mi, cnt, returnType);
1529 final int numArguments = cnt.length() + 1;
1530 final Variable[] vars = new Variable[numArguments];
1532 for (int j = numArguments - 1; j >= 0; --j) {
1533 vars[j] = mapper.pop();
1536 if (returnType[0] != 'V') {
1538 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1542 out.append(vars[0]).append('.');
1546 for (int j = 1; j < numArguments; ++j) {
1548 out.append(vars[j]);
1556 private void addReference(String cn) throws IOException {
1557 if (requireReference(cn)) {
1558 debug(" /* needs " + cn + " */");
1562 private void outType(String d, StringBuilder out) {
1564 while (d.charAt(0) == '[') {
1568 if (d.charAt(0) == 'L') {
1569 assert d.charAt(d.length() - 1) == ';';
1570 out.append(d.replace('/', '_').substring(0, d.length() - 1));
1576 private String encodeConstant(int entryIndex) throws IOException {
1577 String[] classRef = { null };
1578 String s = jc.stringValue(entryIndex, classRef);
1579 if (classRef[0] != null) {
1580 if (classRef[0].startsWith("[")) {
1581 s = accessClass("java_lang_Class") + "(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('" + classRef[0] + "');";
1583 addReference(classRef[0]);
1584 s = accessClass(s.replace('/', '_')) + "(false).constructor.$class";
1590 private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {
1591 byte[] arr = m.findAnnotationData(true);
1595 final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";
1596 final String htmlType = "Lnet/java/html/js/JavaScriptBody;";
1597 class P extends AnnotationParser {
1603 String[] args = new String[30];
1608 protected void visitAttr(String type, String attr, String at, String value) {
1609 if (type.equals(jvmType)) {
1610 if ("body".equals(attr)) {
1612 } else if ("args".equals(attr)) {
1613 args[cnt++] = value;
1615 throw new IllegalArgumentException(attr);
1618 if (type.equals(htmlType)) {
1619 if ("body".equals(attr)) {
1621 } else if ("args".equals(attr)) {
1622 args[cnt++] = value;
1623 } else if ("javacall".equals(attr)) {
1624 javacall = "1".equals(value);
1626 throw new IllegalArgumentException(attr);
1633 if (p.body == null) {
1636 StringBuilder cnt = new StringBuilder();
1637 final String mn = findMethodName(m, cnt);
1638 out.append(destObject).append(".").append(mn);
1639 out.append(" = function(");
1642 for (int i = 0; i < cnt.length(); i++) {
1644 space = outputArg(out, p.args, index);
1647 out.append(") {").append("\n");
1649 int lastSlash = jc.getClassName().lastIndexOf('/');
1650 final String pkg = jc.getClassName().substring(0, lastSlash);
1651 out.append(mangleCallbacks(pkg, p.body));
1652 requireReference(pkg + "/$JsCallbacks$");
1656 out.append("\n}\n");
1660 private static CharSequence mangleCallbacks(String pkgName, String body) {
1661 StringBuilder sb = new StringBuilder();
1664 int next = body.indexOf(".@", pos);
1666 sb.append(body.substring(pos));
1667 body = sb.toString();
1672 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {
1677 String refId = body.substring(ident, next);
1679 sb.append(body.substring(pos, ident));
1681 int sigBeg = body.indexOf('(', next);
1682 int sigEnd = body.indexOf(')', sigBeg);
1683 int colon4 = body.indexOf("::", next);
1684 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1685 throw new IllegalStateException("Malformed body " + body);
1687 String fqn = body.substring(next + 2, colon4);
1688 String method = body.substring(colon4 + 2, sigBeg);
1689 String params = body.substring(sigBeg, sigEnd + 1);
1691 int paramBeg = body.indexOf('(', sigEnd + 1);
1693 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1694 sb.append(mangle(fqn, method, params, false));
1695 sb.append("(").append(refId);
1696 if (body.charAt(paramBeg + 1) != ')') {
1704 int next = body.indexOf("@", pos);
1709 sb.append(body.substring(pos));
1713 sb = new StringBuilder();
1716 sb.append(body.substring(pos, next));
1718 int sigBeg = body.indexOf('(', next);
1719 int sigEnd = body.indexOf(')', sigBeg);
1720 int colon4 = body.indexOf("::", next);
1721 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1722 throw new IllegalStateException("Malformed body " + body);
1724 String fqn = body.substring(next + 1, colon4);
1725 String method = body.substring(colon4 + 2, sigBeg);
1726 String params = body.substring(sigBeg, sigEnd + 1);
1728 int paramBeg = body.indexOf('(', sigEnd + 1);
1730 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1731 sb.append(mangle(fqn, method, params, true));
1736 private static String mangle(String fqn, String method, String params, boolean isStatic) {
1737 if (params.startsWith("(")) {
1738 params = params.substring(1);
1740 if (params.endsWith(")")) {
1741 params = params.substring(0, params.length() - 1);
1743 StringBuilder sb = new StringBuilder();
1744 final String rfqn = replace(fqn);
1745 final String rm = replace(method);
1746 final String rp = replace(params);
1747 sb.append(rfqn).append("$").append(rm).
1748 append('$').append(rp).append("__Ljava_lang_Object_2");
1750 sb.append('L').append(rfqn).append("_2");
1753 return sb.toString();
1756 private static String replace(String orig) {
1757 return orig.replace("_", "_1").
1760 replace('.', '_').replace('/', '_');
1763 private static String className(ClassData jc) {
1764 //return jc.getName().getInternalName().replace('/', '_');
1765 return jc.getClassName().replace('/', '_');
1768 private static String[] findAnnotation(
1769 byte[] arr, ClassData cd, final String className,
1770 final String... attrNames
1771 ) throws IOException {
1775 final String[] values = new String[attrNames.length];
1776 final boolean[] found = { false };
1777 final String jvmType = "L" + className.replace('.', '/') + ";";
1778 AnnotationParser ap = new AnnotationParser(false, true) {
1780 protected void visitAttr(String type, String attr, String at, String value) {
1781 if (type.equals(jvmType)) {
1783 for (int i = 0; i < attrNames.length; i++) {
1784 if (attrNames[i].equals(attr)) {
1793 return found[0] ? values : null;
1796 private CharSequence initField(FieldData v) {
1797 final String is = v.getInternalSig();
1798 if (is.length() == 1) {
1799 switch (is.charAt(0)) {
1805 case 'I': return " = 0;";
1807 case 'D': return " = 0.0;";
1809 throw new IllegalStateException(is);
1815 private void generateAnno(ClassData cd, final Appendable out, byte[] data) throws IOException {
1816 AnnotationParser ap = new AnnotationParser(true, false) {
1817 int[] cnt = new int[32];
1821 protected void visitAnnotationStart(String attrType, boolean top) throws IOException {
1822 final String slashType = attrType.substring(1, attrType.length() - 1);
1823 requireReference(slashType);
1825 if (cnt[depth]++ > 0) {
1829 out.append('"').append(attrType).append("\" : ");
1836 protected void visitAnnotationEnd(String type, boolean top) throws IOException {
1837 out.append("\n}\n");
1842 protected void visitValueStart(String attrName, char type) throws IOException {
1843 if (cnt[depth]++ > 0) {
1847 if (attrName != null) {
1848 out.append(attrName).append(" : ");
1856 protected void visitValueEnd(String attrName, char type) throws IOException {
1864 protected void visitAttr(String type, String attr, String attrType, String value)
1865 throws IOException {
1866 if (attr == null && value == null) {
1873 protected void visitEnumAttr(String type, String attr, String attrType, String value)
1874 throws IOException {
1875 final String slashType = attrType.substring(1, attrType.length() - 1);
1876 requireReference(slashType);
1878 out.append(accessClass(slashType.replace('/', '_')))
1879 .append("(false).constructor.").append(value);
1885 private static String outputArg(Appendable out, String[] args, int indx) throws IOException {
1886 final String name = args[indx];
1890 if (name.contains(",")) {
1891 throw new IOException("Wrong parameter with ',': " + name);
1897 private static void emit(final Appendable out,
1898 final String format,
1899 final CharSequence... params) throws IOException {
1900 final int length = format.length();
1903 int paramOffset = format.indexOf('@');
1904 while ((paramOffset != -1) && (paramOffset < (length - 1))) {
1905 final char paramChar = format.charAt(paramOffset + 1);
1906 if ((paramChar >= '1') && (paramChar <= '9')) {
1907 final int paramIndex = paramChar - '0' - 1;
1909 out.append(format, processed, paramOffset);
1910 out.append(params[paramIndex]);
1913 processed = paramOffset + 1;
1916 paramOffset = format.indexOf('@', paramOffset + 1);
1919 out.append(format, processed, length);
1922 private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {
1923 out.append("} catch (e) {\n");
1925 for (TrapData e : traps) {
1929 if (e.catch_cpx != 0) { //not finally
1930 final String classInternalName = jc.getClassName(e.catch_cpx);
1931 addReference(classInternalName);
1932 out.append("e = vm.java_lang_Throwable(false).bck2BrwsrCnvrt(e);");
1933 out.append("if (e.$instOf_" + classInternalName.replace('/', '_') + ") {");
1934 out.append("var stA0 = e;");
1935 goTo(out, current, e.handler_pc, topMostLabel);
1938 finallyPC = e.handler_pc;
1941 if (finallyPC == -1) {
1942 out.append("throw e;");
1944 out.append("var stA0 = e;");
1945 goTo(out, current, finallyPC, topMostLabel);
1950 private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {
1953 out.append("{ gt = 0; continue X_" + to + "; }");
1955 out.append("{ gt = " + to + "; continue X_0; }");
1958 out.append("{ gt = " + to + "; break IF; }");
1962 private static void emitIf(
1963 Appendable out, String pattern, Variable param,
1964 int current, int to, int canBack
1965 ) throws IOException {
1966 emit(out, pattern, param);
1967 goTo(out, current, to, canBack);
1970 private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {
1973 case 4: jvmType = "[Z"; break;
1974 case 5: jvmType = "[C"; break;
1975 case 6: jvmType = "[F"; break;
1976 case 7: jvmType = "[D"; break;
1977 case 8: jvmType = "[B"; break;
1978 case 9: jvmType = "[S"; break;
1979 case 10: jvmType = "[I"; break;
1980 case 11: jvmType = "[J"; break;
1981 default: throw new IllegalStateException("Array type: " + atype);
1983 emit(out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(true, '@3', @1);",
1984 smapper.popI(), smapper.pushA(), jvmType);
1987 private void generateANewArray(int type, final StackMapper smapper) throws IOException {
1988 String typeName = jc.getClassName(type);
1989 if (typeName.startsWith("[")) {
1990 typeName = "[" + typeName;
1992 typeName = "[L" + typeName + ";";
1994 emit(out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(false, '@3', @1);",
1995 smapper.popI(), smapper.pushA(), typeName);
1998 private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {
1999 String typeName = jc.getClassName(type);
2000 int dim = readUByte(byteCodes, ++i);
2001 StringBuilder dims = new StringBuilder();
2003 for (int d = 0; d < dim; d++) {
2005 dims.insert(1, ",");
2007 dims.insert(1, smapper.popI());
2010 emit(out, "var @2 = Array.prototype.multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3II('@3', @1, 0);",
2011 dims.toString(), smapper.pushA(), typeName);
2015 private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2016 int table = i / 4 * 4 + 4;
2017 int dflt = i + readInt4(byteCodes, table);
2019 int low = readInt4(byteCodes, table);
2021 int high = readInt4(byteCodes, table);
2023 out.append("switch (").append(smapper.popI()).append(") {\n");
2024 while (low <= high) {
2025 int offset = i + readInt4(byteCodes, table);
2027 out.append(" case " + low).append(":"); goTo(out, i, offset, topMostLabel); out.append('\n');
2030 out.append(" default: ");
2031 goTo(out, i, dflt, topMostLabel);
2037 private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2038 int table = i / 4 * 4 + 4;
2039 int dflt = i + readInt4(byteCodes, table);
2041 int n = readInt4(byteCodes, table);
2043 out.append("switch (").append(smapper.popI()).append(") {\n");
2045 int cnstnt = readInt4(byteCodes, table);
2047 int offset = i + readInt4(byteCodes, table);
2049 out.append(" case " + cnstnt).append(": "); goTo(out, i, offset, topMostLabel); out.append('\n');
2051 out.append(" default: ");
2052 goTo(out, i, dflt, topMostLabel);
2058 private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {
2059 final String type = jc.getClassName(indx);
2060 if (!type.startsWith("[")) {
2061 emit(out, "var @2 = @1 != null && @1.$instOf_@3 ? 1 : 0;",
2062 smapper.popA(), smapper.pushI(),
2063 type.replace('/', '_'));
2065 emit(out, "var @2 = vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('@3').isInstance__ZLjava_lang_Object_2(@1);",
2066 smapper.popA(), smapper.pushI(),
2072 private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {
2073 final String type = jc.getClassName(indx);
2074 if (!type.startsWith("[")) {
2076 "if (@1 !== null && !@1.$instOf_@2) throw vm.java_lang_ClassCastException(true);",
2077 smapper.getA(0), type.replace('/', '_'));
2079 emit(out, "vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('@2').cast__Ljava_lang_Object_2Ljava_lang_Object_2(@1);",
2080 smapper.getA(0), type
2085 private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {
2086 for (int j = prev; j <= i; j++) {
2088 final int cc = readUByte(byteCodes, j);
2089 out.append(Integer.toString(cc));