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.$class) {");
140 String sc = jc.getSuperClassName(); // with _
141 out.append("\n var pp = ").
142 append(accessClass(mangleClassName(sc))).append("(true);");
143 out.append("\n var p = CLS.prototype = pp;");
144 out.append("\n var c = p;");
145 out.append("\n var sprcls = pp.constructor.$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.fld_").append(v.getName()).append(initField(v));
157 out.append("\n c._").append(v.getName()).append(" = function (v) {")
158 .append(" if (arguments.length == 1) CLS.fld_").append(v.getName())
159 .append(" = v; return CLS.fld_").
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 out.append("\n function fillInstOf(x) {");
212 String instOfName = "$instOf_" + className;
213 out.append("\n x.").append(instOfName).append(" = true;");
214 for (String superInterface : jc.getSuperInterfaces()) {
215 String intrfc = superInterface.replace('/', '_');
216 out.append("\n vm.").append(intrfc).append("(false).fillInstOf(x);");
217 requireReference(superInterface);
220 out.append("\n c.fillInstOf = fillInstOf;");
221 out.append("\n fillInstOf(c);");
222 obfuscationDelegate.exportJSProperty(out, "c", instOfName);
223 out.append("\n CLS.$class = 'temp';");
224 out.append("\n CLS.$class = ");
225 out.append(accessClass("java_lang_Class(true);"));
226 out.append("\n CLS.$class.jvmName = '").append(jc.getClassName()).append("';");
227 out.append("\n CLS.$class.superclass = sprcls;");
228 out.append("\n CLS.$class.access = ").append(jc.getAccessFlags()+";");
229 out.append("\n CLS.$class.cnstr = CLS;");
230 byte[] classAnno = jc.findAnnotationData(false);
231 if (classAnno != null) {
232 out.append("\n CLS.$class.anno = {");
233 generateAnno(jc, out, classAnno);
236 for (String init : toInitilize.toArray()) {
237 out.append("\n ").append(init).append("();");
240 out.append("\n if (arguments.length === 0) {");
241 out.append("\n if (!(this instanceof CLS)) {");
242 out.append("\n return new CLS();");
244 for (FieldData v : jc.getFields()) {
245 byte[] onlyArr = v.findAnnotationData(true);
246 String[] only = findAnnotation(onlyArr, jc,
247 "org.apidesign.bck2brwsr.core.JavaScriptOnly",
251 if (only[0] != null && only[1] != null) {
252 out.append("\n p.").append(only[0]).append(" = ")
253 .append(only[1]).append(";");
258 out.append("\n this.fld_").
259 append(className).append('_').
260 append(v.getName()).append(initField(v));
263 out.append("\n return this;");
265 out.append("\n return arguments[0] ? new CLS() : CLS.prototype;");
268 obfuscationDelegate.exportClass(out, getVMObject(), className, jc);
270 // StringBuilder sb = new StringBuilder();
271 // for (String init : toInitilize.toArray()) {
272 // sb.append("\n").append(init).append("();");
276 private String generateStaticMethod(String destObject, MethodData m, StringArray toInitilize) throws IOException {
277 String jsb = javaScriptBody(destObject, m, true);
281 final String mn = findMethodName(m, new StringBuilder());
282 if (mn.equals("class__V")) {
283 toInitilize.add(accessClass(className(jc)) + "(false)." + mn);
285 generateMethod(destObject, mn, m);
289 private String generateInstanceMethod(String destObject, MethodData m) throws IOException {
290 String jsb = javaScriptBody(destObject, m, false);
294 final String mn = findMethodName(m, new StringBuilder());
295 generateMethod(destObject, mn, m);
299 private void generateMethod(String destObject, String name, MethodData m)
301 final StackMapIterator stackMapIterator = m.createStackMapIterator();
302 TrapDataIterator trap = m.getTrapDataIterator();
303 final LocalsMapper lmapper =
304 new LocalsMapper(stackMapIterator.getArguments());
306 out.append(destObject).append(".").append(name).append(" = function(");
307 lmapper.outputArguments(out, m.isStatic());
308 out.append(") {").append("\n");
310 final byte[] byteCodes = m.getCode();
311 if (byteCodes == null) {
312 out.append(" throw 'no code found for ")
313 .append(jc.getClassName()).append('.')
314 .append(m.getName()).append("';\n");
319 final StackMapper smapper = new StackMapper();
322 out.append(" var ").append(" lcA0 = this;\n");
325 int lastStackFrame = -1;
326 TrapData[] previousTrap = null;
327 boolean wide = false;
329 out.append("\n var gt = 0;\n");
331 int topMostLabel = 0;
332 for (int i = 0; i < byteCodes.length; i++) {
334 stackMapIterator.advanceTo(i);
335 boolean changeInCatch = trap.advanceTo(i);
336 if (changeInCatch || lastStackFrame != stackMapIterator.getFrameIndex()) {
337 if (previousTrap != null) {
338 generateCatch(previousTrap, i, topMostLabel);
342 if (lastStackFrame != stackMapIterator.getFrameIndex()) {
347 if (openBraces > 64) {
348 for (int c = 0; c < 64; c++) {
349 out.append("break;}\n");
355 lastStackFrame = stackMapIterator.getFrameIndex();
356 lmapper.syncWithFrameLocals(stackMapIterator.getFrameLocals());
357 smapper.syncWithFrameStack(stackMapIterator.getFrameStack());
358 out.append(" X_" + i).append(": for (;;) { IF: if (gt <= " + i + ") {\n");
360 changeInCatch = true;
362 debug(" /* " + i + " */ ");
364 if (changeInCatch && trap.useTry()) {
366 previousTrap = trap.current();
368 final int c = readUByte(byteCodes, i);
371 smapper.assign(out, VarType.REFERENCE, lmapper.getA(0));
374 smapper.assign(out, VarType.INTEGER, lmapper.getI(0));
377 smapper.assign(out, VarType.LONG, lmapper.getL(0));
380 smapper.assign(out, VarType.FLOAT, lmapper.getF(0));
383 smapper.assign(out, VarType.DOUBLE, lmapper.getD(0));
386 smapper.assign(out, VarType.REFERENCE, lmapper.getA(1));
389 smapper.assign(out, VarType.INTEGER, lmapper.getI(1));
392 smapper.assign(out, VarType.LONG, lmapper.getL(1));
395 smapper.assign(out, VarType.FLOAT, lmapper.getF(1));
398 smapper.assign(out, VarType.DOUBLE, lmapper.getD(1));
401 smapper.assign(out, VarType.REFERENCE, lmapper.getA(2));
404 smapper.assign(out, VarType.INTEGER, lmapper.getI(2));
407 smapper.assign(out, VarType.LONG, lmapper.getL(2));
410 smapper.assign(out, VarType.FLOAT, lmapper.getF(2));
413 smapper.assign(out, VarType.DOUBLE, lmapper.getD(2));
416 smapper.assign(out, VarType.REFERENCE, lmapper.getA(3));
419 smapper.assign(out, VarType.INTEGER, lmapper.getI(3));
422 smapper.assign(out, VarType.LONG, lmapper.getL(3));
425 smapper.assign(out, VarType.FLOAT, lmapper.getF(3));
428 smapper.assign(out, VarType.DOUBLE, lmapper.getD(3));
432 final int indx = wide ? readUShort(byteCodes, i++)
433 : readUByte(byteCodes, i);
435 smapper.assign(out, VarType.INTEGER, lmapper.getI(indx));
440 final int indx = wide ? readUShort(byteCodes, i++)
441 : readUByte(byteCodes, i);
443 smapper.assign(out, VarType.LONG, lmapper.getL(indx));
448 final int indx = wide ? readUShort(byteCodes, i++)
449 : readUByte(byteCodes, i);
451 smapper.assign(out, VarType.FLOAT, lmapper.getF(indx));
456 final int indx = wide ? readUShort(byteCodes, i++)
457 : readUByte(byteCodes, i);
459 smapper.assign(out, VarType.DOUBLE, lmapper.getD(indx));
464 final int indx = wide ? readUShort(byteCodes, i++)
465 : readUByte(byteCodes, i);
467 smapper.assign(out, VarType.REFERENCE, lmapper.getA(indx));
472 final int indx = wide ? readUShort(byteCodes, i++)
473 : readUByte(byteCodes, i);
475 emit(smapper, out, "var @1 = @2;",
476 lmapper.setI(indx), smapper.popI());
481 final int indx = wide ? readUShort(byteCodes, i++)
482 : readUByte(byteCodes, i);
484 emit(smapper, out, "var @1 = @2;",
485 lmapper.setL(indx), smapper.popL());
490 final int indx = wide ? readUShort(byteCodes, i++)
491 : readUByte(byteCodes, i);
493 emit(smapper, out, "var @1 = @2;",
494 lmapper.setF(indx), smapper.popF());
499 final int indx = wide ? readUShort(byteCodes, i++)
500 : readUByte(byteCodes, i);
502 emit(smapper, out, "var @1 = @2;",
503 lmapper.setD(indx), smapper.popD());
508 final int indx = wide ? readUShort(byteCodes, i++)
509 : readUByte(byteCodes, i);
511 emit(smapper, out, "var @1 = @2;",
512 lmapper.setA(indx), smapper.popA());
516 emit(smapper, out, "var @1 = @2;", lmapper.setA(0), smapper.popA());
519 emit(smapper, out, "var @1 = @2;", lmapper.setI(0), smapper.popI());
522 emit(smapper, out, "var @1 = @2;", lmapper.setL(0), smapper.popL());
525 emit(smapper, out, "var @1 = @2;", lmapper.setF(0), smapper.popF());
528 emit(smapper, out, "var @1 = @2;", lmapper.setD(0), smapper.popD());
531 emit(smapper, out, "var @1 = @2;", lmapper.setA(1), smapper.popA());
534 emit(smapper, out, "var @1 = @2;", lmapper.setI(1), smapper.popI());
537 emit(smapper, out, "var @1 = @2;", lmapper.setL(1), smapper.popL());
540 emit(smapper, out, "var @1 = @2;", lmapper.setF(1), smapper.popF());
543 emit(smapper, out, "var @1 = @2;", lmapper.setD(1), smapper.popD());
546 emit(smapper, out, "var @1 = @2;", lmapper.setA(2), smapper.popA());
549 emit(smapper, out, "var @1 = @2;", lmapper.setI(2), smapper.popI());
552 emit(smapper, out, "var @1 = @2;", lmapper.setL(2), smapper.popL());
555 emit(smapper, out, "var @1 = @2;", lmapper.setF(2), smapper.popF());
558 emit(smapper, out, "var @1 = @2;", lmapper.setD(2), smapper.popD());
561 emit(smapper, out, "var @1 = @2;", lmapper.setA(3), smapper.popA());
564 emit(smapper, out, "var @1 = @2;", lmapper.setI(3), smapper.popI());
567 emit(smapper, out, "var @1 = @2;", lmapper.setL(3), smapper.popL());
570 emit(smapper, out, "var @1 = @2;", lmapper.setF(3), smapper.popF());
573 emit(smapper, out, "var @1 = @2;", lmapper.setD(3), smapper.popD());
576 smapper.replace(out, VarType.INTEGER, "(@1).add32(@2)", smapper.getI(1), smapper.popI());
579 smapper.replace(out, VarType.LONG, "(@1).add64(@2)", smapper.getL(1), smapper.popL());
582 smapper.replace(out, VarType.FLOAT, "(@1 + @2)", smapper.getF(1), smapper.popF());
585 smapper.replace(out, VarType.DOUBLE, "(@1 + @2)", smapper.getD(1), smapper.popD());
588 smapper.replace(out, VarType.INTEGER, "(@1).sub32(@2)", smapper.getI(1), smapper.popI());
591 smapper.replace(out, VarType.LONG, "(@1).sub64(@2)", smapper.getL(1), smapper.popL());
594 smapper.replace(out, VarType.FLOAT, "(@1 - @2)", smapper.getF(1), smapper.popF());
597 smapper.replace(out, VarType.DOUBLE, "(@1 - @2)", smapper.getD(1), smapper.popD());
600 smapper.replace(out, VarType.INTEGER, "(@1).mul32(@2)", smapper.getI(1), smapper.popI());
603 smapper.replace(out, VarType.LONG, "(@1).mul64(@2)", smapper.getL(1), smapper.popL());
606 smapper.replace(out, VarType.FLOAT, "(@1 * @2)", smapper.getF(1), smapper.popF());
609 smapper.replace(out, VarType.DOUBLE, "(@1 * @2)", smapper.getD(1), smapper.popD());
612 smapper.replace(out, VarType.INTEGER, "(@1).div32(@2)",
613 smapper.getI(1), smapper.popI());
616 smapper.replace(out, VarType.LONG, "(@1).div64(@2)",
617 smapper.getL(1), smapper.popL());
620 smapper.replace(out, VarType.FLOAT, "(@1 / @2)", smapper.getF(1), smapper.popF());
623 smapper.replace(out, VarType.DOUBLE, "(@1 / @2)", smapper.getD(1), smapper.popD());
626 smapper.replace(out, VarType.INTEGER, "(@1).mod32(@2)",
627 smapper.getI(1), smapper.popI());
630 smapper.replace(out, VarType.LONG, "(@1).mod64(@2)",
631 smapper.getL(1), smapper.popL());
634 smapper.replace(out, VarType.FLOAT, "(@1 % @2)", smapper.getF(1), smapper.popF());
637 smapper.replace(out, VarType.DOUBLE, "(@1 % @2)", smapper.getD(1), smapper.popD());
640 smapper.replace(out, VarType.INTEGER, "(@1 & @2)", smapper.getI(1), smapper.popI());
643 smapper.replace(out, VarType.LONG, "(@1).and64(@2)", smapper.getL(1), smapper.popL());
646 smapper.replace(out, VarType.INTEGER, "(@1 | @2)", smapper.getI(1), smapper.popI());
649 smapper.replace(out, VarType.LONG, "(@1).or64(@2)", smapper.getL(1), smapper.popL());
652 smapper.replace(out, VarType.INTEGER, "(@1 ^ @2)", smapper.getI(1), smapper.popI());
655 smapper.replace(out, VarType.LONG, "(@1).xor64(@2)", smapper.getL(1), smapper.popL());
658 smapper.replace(out, VarType.INTEGER, "(@1).neg32()", smapper.getI(0));
661 smapper.replace(out, VarType.LONG, "(@1).neg64()", smapper.getL(0));
664 smapper.replace(out, VarType.FLOAT, "(-@1)", smapper.getF(0));
667 smapper.replace(out, VarType.DOUBLE, "(-@1)", smapper.getD(0));
670 smapper.replace(out, VarType.INTEGER, "(@1 << @2)", smapper.getI(1), smapper.popI());
673 smapper.replace(out, VarType.LONG, "(@1).shl64(@2)", smapper.getL(1), smapper.popI());
676 smapper.replace(out, VarType.INTEGER, "(@1 >> @2)", smapper.getI(1), smapper.popI());
679 smapper.replace(out, VarType.LONG, "(@1).shr64(@2)", smapper.getL(1), smapper.popI());
682 smapper.replace(out, VarType.INTEGER, "(@1 >>> @2)", smapper.getI(1), smapper.popI());
685 smapper.replace(out, VarType.LONG, "(@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(smapper, out, "@1++;", lmapper.getI(varIndx));
698 emit(smapper, out, "@1 += @2;",
699 lmapper.getI(varIndx),
700 Integer.toString(incrBy));
705 emit(smapper, out, "return;");
708 emit(smapper, out, "return @1;", smapper.popI());
711 emit(smapper, out, "return @1;", smapper.popL());
714 emit(smapper, out, "return @1;", smapper.popF());
717 emit(smapper, out, "return @1;", smapper.popD());
720 emit(smapper, out, "return @1;", smapper.popA());
723 smapper.replace(out, VarType.LONG, "@1", smapper.getI(0));
726 smapper.replace(out, VarType.FLOAT, "@1", smapper.getI(0));
729 smapper.replace(out, VarType.DOUBLE, "@1", smapper.getI(0));
732 smapper.replace(out, VarType.INTEGER, "(@1).toInt32()", smapper.getL(0));
736 smapper.replace(out, VarType.FLOAT, "(@1).toFP()", smapper.getL(0));
739 smapper.replace(out, VarType.DOUBLE, "(@1).toFP()", smapper.getL(0));
742 smapper.replace(out, VarType.DOUBLE, "@1",
746 smapper.replace(out, VarType.FLOAT, "@1",
750 smapper.replace(out, VarType.INTEGER, "(@1).toInt32()",
754 smapper.replace(out, VarType.LONG, "(@1).toLong()",
758 smapper.replace(out, VarType.INTEGER, "(@1).toInt32()",
762 smapper.replace(out, VarType.LONG, "(@1).toLong()", smapper.getD(0));
765 smapper.replace(out, VarType.INTEGER, "(@1).toInt8()", smapper.getI(0));
770 smapper.replace(out, VarType.INTEGER, "(@1).toInt16()", smapper.getI(0));
772 case opc_aconst_null:
773 smapper.assign(out, VarType.REFERENCE, "null");
776 smapper.assign(out, VarType.INTEGER, "-1");
779 smapper.assign(out, VarType.INTEGER, "0");
782 smapper.assign(out, VarType.DOUBLE, "0");
785 smapper.assign(out, VarType.LONG, "0");
788 smapper.assign(out, VarType.FLOAT, "0");
791 smapper.assign(out, VarType.INTEGER, "1");
794 smapper.assign(out, VarType.LONG, "1");
797 smapper.assign(out, VarType.FLOAT, "1");
800 smapper.assign(out, VarType.DOUBLE, "1");
803 smapper.assign(out, VarType.INTEGER, "2");
806 smapper.assign(out, VarType.FLOAT, "2");
809 smapper.assign(out, VarType.INTEGER, "3");
812 smapper.assign(out, VarType.INTEGER, "4");
815 smapper.assign(out, VarType.INTEGER, "5");
818 int indx = readUByte(byteCodes, ++i);
819 String v = encodeConstant(indx);
820 int type = VarType.fromConstantType(jc.getTag(indx));
821 emit(smapper, 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);
835 smapper.assign(out, VarType.LONG, "0x" + Integer.toHexString(low));
837 smapper.assign(out, VarType.LONG,
838 "0x" + Integer.toHexString(hi) + ".next32(0x" +
839 Integer.toHexString(low) + ")"
843 smapper.assign(out, type, v);
848 emit(smapper, out, "var @3 = (@2).compare64(@1);",
849 smapper.popL(), smapper.popL(), smapper.pushI());
853 emit(smapper, out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
854 smapper.popF(), smapper.popF(), smapper.pushI());
858 emit(smapper, out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
859 smapper.popD(), smapper.popD(), smapper.pushI());
862 i = generateIf(byteCodes, i, smapper.popA(), smapper.popA(),
863 "===", topMostLabel);
866 i = generateIf(byteCodes, i, smapper.popA(), smapper.popA(),
867 "!==", topMostLabel);
870 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
874 int indx = i + readShortArg(byteCodes, i);
875 emitIf(smapper, out, "if (@1 == 0) ",
876 smapper.popI(), i, indx, topMostLabel);
881 int indx = i + readShortArg(byteCodes, i);
882 emitIf(smapper, out, "if (@1 != 0) ",
883 smapper.popI(), i, indx, topMostLabel);
888 int indx = i + readShortArg(byteCodes, i);
889 emitIf(smapper, out, "if (@1 < 0) ",
890 smapper.popI(), i, indx, topMostLabel);
895 int indx = i + readShortArg(byteCodes, i);
896 emitIf(smapper, out, "if (@1 <= 0) ",
897 smapper.popI(), i, indx, topMostLabel);
902 int indx = i + readShortArg(byteCodes, i);
903 emitIf(smapper, out, "if (@1 > 0) ",
904 smapper.popI(), i, indx, topMostLabel);
909 int indx = i + readShortArg(byteCodes, i);
910 emitIf(smapper, out, "if (@1 >= 0) ",
911 smapper.popI(), i, indx, topMostLabel);
915 case opc_ifnonnull: {
916 int indx = i + readShortArg(byteCodes, i);
917 emitIf(smapper, out, "if (@1 !== null) ",
918 smapper.popA(), i, indx, topMostLabel);
923 int indx = i + readShortArg(byteCodes, i);
924 emitIf(smapper, out, "if (@1 === null) ",
925 smapper.popA(), i, indx, topMostLabel);
930 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
934 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
938 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
942 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
946 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
951 int indx = i + readShortArg(byteCodes, i);
952 goTo(out, i, indx, topMostLabel);
956 case opc_lookupswitch: {
957 i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);
960 case opc_tableswitch: {
961 i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);
964 case opc_invokeinterface: {
965 i = invokeVirtualMethod(byteCodes, i, smapper) + 2;
968 case opc_invokevirtual:
969 i = invokeVirtualMethod(byteCodes, i, smapper);
971 case opc_invokespecial:
972 i = invokeStaticMethod(byteCodes, i, smapper, false);
974 case opc_invokestatic:
975 i = invokeStaticMethod(byteCodes, i, smapper, true);
978 int indx = readUShortArg(byteCodes, i);
979 String ci = jc.getClassName(indx);
980 emit(smapper, out, "var @1 = new @2;",
981 smapper.pushA(), accessClass(mangleClassName(ci)));
987 int atype = readUByte(byteCodes, ++i);
988 generateNewArray(atype, smapper);
990 case opc_anewarray: {
991 int type = readUShortArg(byteCodes, i);
993 generateANewArray(type, smapper);
996 case opc_multianewarray: {
997 int type = readUShortArg(byteCodes, i);
999 i = generateMultiANewArray(type, byteCodes, i, smapper);
1002 case opc_arraylength:
1003 emit(smapper, out, "var @2 = @1.length;",
1004 smapper.popA(), smapper.pushI());
1007 emit(smapper, out, "Array.at(@3, @2, @1);",
1008 smapper.popL(), smapper.popI(), smapper.popA());
1011 emit(smapper, out, "Array.at(@3, @2, @1);",
1012 smapper.popF(), smapper.popI(), smapper.popA());
1015 emit(smapper, out, "Array.at(@3, @2, @1);",
1016 smapper.popD(), smapper.popI(), smapper.popA());
1019 emit(smapper, out, "Array.at(@3, @2, @1);",
1020 smapper.popA(), smapper.popI(), smapper.popA());
1026 emit(smapper, out, "Array.at(@3, @2, @1);",
1027 smapper.popI(), smapper.popI(), smapper.popA());
1030 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1031 smapper.popI(), smapper.popA(), smapper.pushL());
1034 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1035 smapper.popI(), smapper.popA(), smapper.pushF());
1038 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1039 smapper.popI(), smapper.popA(), smapper.pushD());
1042 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1043 smapper.popI(), smapper.popA(), smapper.pushA());
1049 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1050 smapper.popI(), smapper.popA(), smapper.pushI());
1058 final Variable v = smapper.get(0);
1059 emit(smapper, out, "var @1 = @2;", smapper.pushT(v.getType()), v);
1063 final Variable vi1 = smapper.get(0);
1065 if (vi1.isCategory2()) {
1066 emit(smapper, out, "var @1 = @2;",
1067 smapper.pushT(vi1.getType()), vi1);
1069 final Variable vi2 = smapper.get(1);
1070 emit(smapper, out, "var @1 = @2, @3 = @4;",
1071 smapper.pushT(vi2.getType()), vi2,
1072 smapper.pushT(vi1.getType()), vi1);
1077 final Variable vi1 = smapper.pop(out);
1078 final Variable vi2 = smapper.pop(out);
1079 final Variable vo3 = smapper.pushT(vi1.getType());
1080 final Variable vo2 = smapper.pushT(vi2.getType());
1081 final Variable vo1 = smapper.pushT(vi1.getType());
1083 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1084 vo1, vi1, vo2, vi2, vo3, vo1);
1088 final Variable vi1 = smapper.pop(out);
1089 final Variable vi2 = smapper.pop(out);
1091 if (vi1.isCategory2()) {
1092 final Variable vo3 = smapper.pushT(vi1.getType());
1093 final Variable vo2 = smapper.pushT(vi2.getType());
1094 final Variable vo1 = smapper.pushT(vi1.getType());
1096 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1097 vo1, vi1, vo2, vi2, vo3, vo1);
1099 final Variable vi3 = smapper.pop(out);
1100 final Variable vo5 = smapper.pushT(vi2.getType());
1101 final Variable vo4 = smapper.pushT(vi1.getType());
1102 final Variable vo3 = smapper.pushT(vi3.getType());
1103 final Variable vo2 = smapper.pushT(vi2.getType());
1104 final Variable vo1 = smapper.pushT(vi1.getType());
1106 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6,",
1107 vo1, vi1, vo2, vi2, vo3, vi3);
1108 emit(smapper, out, " @1 = @2, @3 = @4;",
1109 vo4, vo1, vo5, vo2);
1114 final Variable vi1 = smapper.pop(out);
1115 final Variable vi2 = smapper.pop(out);
1117 if (vi2.isCategory2()) {
1118 final Variable vo3 = smapper.pushT(vi1.getType());
1119 final Variable vo2 = smapper.pushT(vi2.getType());
1120 final Variable vo1 = smapper.pushT(vi1.getType());
1122 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1123 vo1, vi1, vo2, vi2, vo3, vo1);
1125 final Variable vi3 = smapper.pop(out);
1126 final Variable vo4 = smapper.pushT(vi1.getType());
1127 final Variable vo3 = smapper.pushT(vi3.getType());
1128 final Variable vo2 = smapper.pushT(vi2.getType());
1129 final Variable vo1 = smapper.pushT(vi1.getType());
1131 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1132 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1137 final Variable vi1 = smapper.pop(out);
1138 final Variable vi2 = smapper.pop(out);
1140 if (vi1.isCategory2()) {
1141 if (vi2.isCategory2()) {
1142 final Variable vo3 = smapper.pushT(vi1.getType());
1143 final Variable vo2 = smapper.pushT(vi2.getType());
1144 final Variable vo1 = smapper.pushT(vi1.getType());
1146 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1147 vo1, vi1, vo2, vi2, vo3, vo1);
1149 final Variable vi3 = smapper.pop(out);
1150 final Variable vo4 = smapper.pushT(vi1.getType());
1151 final Variable vo3 = smapper.pushT(vi3.getType());
1152 final Variable vo2 = smapper.pushT(vi2.getType());
1153 final Variable vo1 = smapper.pushT(vi1.getType());
1155 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1156 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1159 final Variable vi3 = smapper.pop(out);
1161 if (vi3.isCategory2()) {
1162 final Variable vo5 = smapper.pushT(vi2.getType());
1163 final Variable vo4 = smapper.pushT(vi1.getType());
1164 final Variable vo3 = smapper.pushT(vi3.getType());
1165 final Variable vo2 = smapper.pushT(vi2.getType());
1166 final Variable vo1 = smapper.pushT(vi1.getType());
1168 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6,",
1169 vo1, vi1, vo2, vi2, vo3, vi3);
1170 emit(smapper, out, " @1 = @2, @3 = @4;",
1171 vo4, vo1, vo5, vo2);
1173 final Variable vi4 = smapper.pop(out);
1174 final Variable vo6 = smapper.pushT(vi2.getType());
1175 final Variable vo5 = smapper.pushT(vi1.getType());
1176 final Variable vo4 = smapper.pushT(vi4.getType());
1177 final Variable vo3 = smapper.pushT(vi3.getType());
1178 final Variable vo2 = smapper.pushT(vi2.getType());
1179 final Variable vo1 = smapper.pushT(vi1.getType());
1181 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",
1182 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);
1183 emit(smapper, out, " @1 = @2, @3 = @4;",
1184 vo5, vo1, vo6, vo2);
1190 final Variable vi1 = smapper.get(0);
1191 final Variable vi2 = smapper.get(1);
1193 if (vi1.getType() == vi2.getType()) {
1194 final Variable tmp = smapper.pushT(vi1.getType());
1196 emit(smapper, out, "var @1 = @2, @2 = @3, @3 = @1;",
1201 smapper.pushT(vi1.getType());
1202 smapper.pushT(vi2.getType());
1207 smapper.assign(out, VarType.INTEGER,
1208 "(" + Integer.toString(byteCodes[++i]) + ")");
1211 smapper.assign(out, VarType.INTEGER,
1212 "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"
1216 case opc_getfield: {
1217 int indx = readUShortArg(byteCodes, i);
1218 String[] fi = jc.getFieldInfoName(indx);
1219 final int type = VarType.fromFieldType(fi[2].charAt(0));
1220 final String mangleClass = mangleClassName(fi[0]);
1221 final String mangleClassAccess = accessClass(mangleClass);
1222 emit(smapper, out, "var @2 = @4(false)._@3.call(@1);",
1224 smapper.pushT(type), fi[1], mangleClassAccess
1229 case opc_putfield: {
1230 int indx = readUShortArg(byteCodes, i);
1231 String[] fi = jc.getFieldInfoName(indx);
1232 final int type = VarType.fromFieldType(fi[2].charAt(0));
1233 final String mangleClass = mangleClassName(fi[0]);
1234 final String mangleClassAccess = accessClass(mangleClass);
1235 emit(smapper, out, "@4(false)._@3.call(@2, @1);",
1237 smapper.popA(), fi[1],
1243 case opc_getstatic: {
1244 int indx = readUShortArg(byteCodes, i);
1245 String[] fi = jc.getFieldInfoName(indx);
1246 final int type = VarType.fromFieldType(fi[2].charAt(0));
1247 emit(smapper, out, "var @1 = @2(false)._@3();",
1248 smapper.pushT(type),
1249 accessClass(mangleClassName(fi[0])), fi[1]);
1251 addReference(fi[0]);
1254 case opc_putstatic: {
1255 int indx = readUShortArg(byteCodes, i);
1256 String[] fi = jc.getFieldInfoName(indx);
1257 final int type = VarType.fromFieldType(fi[2].charAt(0));
1258 emit(smapper, out, "@1(false)._@2(@3);",
1259 accessClass(mangleClassName(fi[0])), fi[1],
1260 smapper.popT(type));
1262 addReference(fi[0]);
1265 case opc_checkcast: {
1266 int indx = readUShortArg(byteCodes, i);
1267 generateCheckcast(indx, smapper);
1271 case opc_instanceof: {
1272 int indx = readUShortArg(byteCodes, i);
1273 generateInstanceOf(indx, smapper);
1278 final CharSequence v = smapper.popA();
1281 emit(smapper, out, "{ var @1 = @2; throw @2; }",
1282 smapper.pushA(), v);
1286 case opc_monitorenter: {
1287 out.append("/* monitor enter */");
1292 case opc_monitorexit: {
1293 out.append("/* monitor exit */");
1304 emit(smapper, out, "throw 'unknown bytecode @1';",
1305 Integer.toString(c));
1309 generateByteCodeComment(prev, i, byteCodes);
1313 if (previousTrap != null) {
1314 generateCatch(previousTrap, byteCodes.length, topMostLabel);
1316 out.append("\n }\n");
1317 while (openBraces-- > 0) {
1323 private int generateIf(byte[] byteCodes, int i, final CharSequence v2, final CharSequence v1, final String test, int topMostLabel) throws IOException {
1324 int indx = i + readShortArg(byteCodes, i);
1325 out.append("if (").append(v1)
1326 .append(' ').append(test).append(' ')
1327 .append(v2).append(") ");
1328 goTo(out, i, indx, topMostLabel);
1332 private int readInt4(byte[] byteCodes, int offset) {
1333 final int d = byteCodes[offset + 0] << 24;
1334 final int c = byteCodes[offset + 1] << 16;
1335 final int b = byteCodes[offset + 2] << 8;
1336 final int a = byteCodes[offset + 3];
1337 return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);
1339 private static int readUByte(byte[] byteCodes, int offset) {
1340 return byteCodes[offset] & 0xff;
1343 private static int readUShort(byte[] byteCodes, int offset) {
1344 return ((byteCodes[offset] & 0xff) << 8)
1345 | (byteCodes[offset + 1] & 0xff);
1347 private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {
1348 return readUShort(byteCodes, offsetInstruction + 1);
1351 private static int readShort(byte[] byteCodes, int offset) {
1352 int signed = byteCodes[offset];
1353 byte b0 = (byte)signed;
1354 return (b0 << 8) | (byteCodes[offset + 1] & 0xff);
1356 private static int readShortArg(byte[] byteCodes, int offsetInstruction) {
1357 return readShort(byteCodes, offsetInstruction + 1);
1360 private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {
1362 Boolean count = null;
1363 boolean array = false;
1365 int firstPos = sig.length();
1366 while (i < descriptor.length()) {
1367 char ch = descriptor.charAt(i++);
1388 if (ch == 'J' || ch == 'D') {
1394 sig.insert(firstPos, ch);
1396 returnType[0] = '[';
1397 sig.insert(firstPos, "_3");
1406 returnType[0] = 'V';
1407 sig.insert(firstPos, 'V');
1410 int next = descriptor.indexOf(';', i);
1411 String realSig = mangleSig(descriptor, i - 1, next + 1);
1416 sig.append(realSig);
1419 sig.insert(firstPos, realSig);
1421 sig.insert(firstPos, "_3");
1423 returnType[0] = 'L';
1432 throw new IllegalStateException("Invalid char: " + ch);
1437 static String mangleSig(String sig) {
1438 return mangleSig(sig, 0, sig.length());
1441 private static String mangleMethodName(String name) {
1442 StringBuilder sb = new StringBuilder(name.length() * 2);
1443 int last = name.length();
1444 for (int i = 0; i < last; i++) {
1445 final char ch = name.charAt(i);
1447 case '_': sb.append("_1"); break;
1448 default: sb.append(ch); break;
1451 return sb.toString();
1453 private static String mangleSig(String txt, int first, int last) {
1454 StringBuilder sb = new StringBuilder((last - first) * 2);
1455 for (int i = first; i < last; i++) {
1456 final char ch = txt.charAt(i);
1458 case '/': sb.append('_'); break;
1459 case '_': sb.append("_1"); break;
1460 case ';': sb.append("_2"); break;
1461 case '[': sb.append("_3"); break;
1462 default: sb.append(ch); break;
1465 return sb.toString();
1468 private static String mangleClassName(String name) {
1469 return mangleSig(name);
1472 private static String findMethodName(MethodData m, StringBuilder cnt) {
1473 StringBuilder name = new StringBuilder();
1474 if ("<init>".equals(m.getName())) { // NOI18N
1475 name.append("cons"); // NOI18N
1476 } else if ("<clinit>".equals(m.getName())) { // NOI18N
1477 name.append("class"); // NOI18N
1479 name.append(mangleMethodName(m.getName()));
1482 countArgs(m.getInternalSig(), new char[1], name, cnt);
1483 return name.toString();
1486 static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {
1487 StringBuilder name = new StringBuilder();
1488 String descr = mi[2];//mi.getDescriptor();
1490 if ("<init>".equals(nm)) { // NOI18N
1491 name.append("cons"); // NOI18N
1493 name.append(mangleMethodName(nm));
1495 countArgs(descr, returnType, name, cnt);
1496 return name.toString();
1499 private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)
1500 throws IOException {
1501 int methodIndex = readUShortArg(byteCodes, i);
1502 String[] mi = jc.getFieldInfoName(methodIndex);
1503 char[] returnType = { 'V' };
1504 StringBuilder cnt = new StringBuilder();
1505 String mn = findMethodName(mi, cnt, returnType);
1507 final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;
1508 final CharSequence[] vars = new CharSequence[numArguments];
1510 for (int j = numArguments - 1; j >= 0; --j) {
1511 vars[j] = mapper.popValue();
1514 if (returnType[0] != 'V') {
1516 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1520 final String in = mi[0];
1521 out.append(accessClass(mangleClassName(in)));
1522 out.append("(false).");
1523 if (mn.startsWith("cons_")) {
1524 out.append("constructor.");
1530 out.append(".call(");
1532 if (numArguments > 0) {
1533 out.append(vars[0]);
1534 for (int j = 1; j < numArguments; ++j) {
1536 out.append(vars[j]);
1544 private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)
1545 throws IOException {
1546 int methodIndex = readUShortArg(byteCodes, i);
1547 String[] mi = jc.getFieldInfoName(methodIndex);
1548 char[] returnType = { 'V' };
1549 StringBuilder cnt = new StringBuilder();
1550 String mn = findMethodName(mi, cnt, returnType);
1552 final int numArguments = cnt.length() + 1;
1553 final CharSequence[] vars = new CharSequence[numArguments];
1555 for (int j = numArguments - 1; j >= 0; --j) {
1556 vars[j] = mapper.popValue();
1559 if (returnType[0] != 'V') {
1561 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1565 out.append(vars[0]).append('.');
1569 for (int j = 1; j < numArguments; ++j) {
1571 out.append(vars[j]);
1579 private void addReference(String cn) throws IOException {
1580 if (requireReference(cn)) {
1581 debug(" /* needs " + cn + " */");
1585 private void outType(String d, StringBuilder out) {
1587 while (d.charAt(0) == '[') {
1591 if (d.charAt(0) == 'L') {
1592 assert d.charAt(d.length() - 1) == ';';
1593 out.append(d.replace('/', '_').substring(0, d.length() - 1));
1599 private String encodeConstant(int entryIndex) throws IOException {
1600 String[] classRef = { null };
1601 String s = jc.stringValue(entryIndex, classRef);
1602 if (classRef[0] != null) {
1603 if (classRef[0].startsWith("[")) {
1604 s = accessClass("java_lang_Class") + "(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('" + classRef[0] + "')";
1606 addReference(classRef[0]);
1607 s = accessClass(mangleClassName(s)) + "(false).constructor.$class";
1613 private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {
1614 byte[] arr = m.findAnnotationData(true);
1618 final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";
1619 final String htmlType = "Lnet/java/html/js/JavaScriptBody;";
1620 class P extends AnnotationParser {
1626 String[] args = new String[30];
1632 protected void visitAttr(String type, String attr, String at, String value) {
1633 if (type.equals(jvmType)) {
1634 if ("body".equals(attr)) {
1636 } else if ("args".equals(attr)) {
1637 args[cnt++] = value;
1639 throw new IllegalArgumentException(attr);
1642 if (type.equals(htmlType)) {
1644 if ("body".equals(attr)) {
1646 } else if ("args".equals(attr)) {
1647 args[cnt++] = value;
1648 } else if ("javacall".equals(attr)) {
1649 javacall = "1".equals(value);
1651 throw new IllegalArgumentException(attr);
1658 if (p.body == null) {
1661 StringBuilder cnt = new StringBuilder();
1662 final String mn = findMethodName(m, cnt);
1663 out.append(destObject).append(".").append(mn);
1664 out.append(" = function(");
1667 StringBuilder toValue = new StringBuilder();
1668 for (int i = 0; i < cnt.length(); i++) {
1670 space = outputArg(out, p.args, index);
1671 if (p.html4j && space.length() > 0) {
1672 toValue.append("\n ").append(p.args[index]).append(" = vm.org_apidesign_bck2brwsr_emul_lang_System(false).toJS(").
1673 append(p.args[index]).append(");");
1677 out.append(") {").append("\n");
1678 out.append(toValue.toString());
1680 int lastSlash = jc.getClassName().lastIndexOf('/');
1681 final String pkg = jc.getClassName().substring(0, lastSlash);
1682 out.append(mangleCallbacks(pkg, p.body));
1683 requireReference(pkg + "/$JsCallbacks$");
1687 out.append("\n}\n");
1691 private static CharSequence mangleCallbacks(String pkgName, String body) {
1692 StringBuilder sb = new StringBuilder();
1695 int next = body.indexOf(".@", pos);
1697 sb.append(body.substring(pos));
1698 body = sb.toString();
1703 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {
1708 String refId = body.substring(ident, next);
1710 sb.append(body.substring(pos, ident));
1712 int sigBeg = body.indexOf('(', next);
1713 int sigEnd = body.indexOf(')', sigBeg);
1714 int colon4 = body.indexOf("::", next);
1715 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1716 throw new IllegalStateException("Malformed body " + body);
1718 String fqn = body.substring(next + 2, colon4);
1719 String method = body.substring(colon4 + 2, sigBeg);
1720 String params = body.substring(sigBeg, sigEnd + 1);
1722 int paramBeg = body.indexOf('(', sigEnd + 1);
1724 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1725 sb.append(mangleJsCallbacks(fqn, method, params, false));
1726 sb.append("(").append(refId);
1727 if (body.charAt(paramBeg + 1) != ')') {
1735 int next = body.indexOf("@", pos);
1740 sb.append(body.substring(pos));
1744 sb = new StringBuilder();
1747 sb.append(body.substring(pos, next));
1749 int sigBeg = body.indexOf('(', next);
1750 int sigEnd = body.indexOf(')', sigBeg);
1751 int colon4 = body.indexOf("::", next);
1752 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1753 throw new IllegalStateException("Malformed body " + body);
1755 String fqn = body.substring(next + 1, colon4);
1756 String method = body.substring(colon4 + 2, sigBeg);
1757 String params = body.substring(sigBeg, sigEnd + 1);
1759 int paramBeg = body.indexOf('(', sigEnd + 1);
1761 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1762 sb.append(mangleJsCallbacks(fqn, method, params, true));
1768 static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {
1769 if (params.startsWith("(")) {
1770 params = params.substring(1);
1772 if (params.endsWith(")")) {
1773 params = params.substring(0, params.length() - 1);
1775 StringBuilder sb = new StringBuilder();
1776 final String fqnu = fqn.replace('.', '_');
1777 final String rfqn = mangleClassName(fqnu);
1778 final String rm = mangleMethodName(method);
1781 StringBuilder pb = new StringBuilder();
1782 int len = params.length();
1784 while (indx < len) {
1785 char ch = params.charAt(indx);
1786 if (ch == '[' || ch == 'L') {
1787 pb.append("Ljava/lang/Object;");
1788 indx = params.indexOf(';', indx) + 1;
1794 srp = mangleSig(pb.toString());
1796 final String rp = mangleSig(params);
1797 final String mrp = mangleMethodName(rp);
1798 sb.append(rfqn).append("$").append(rm).
1799 append('$').append(mrp).append("__Ljava_lang_Object_2");
1801 sb.append('L').append(fqnu).append("_2");
1804 return sb.toString();
1807 private static String className(ClassData jc) {
1808 //return jc.getName().getInternalName().replace('/', '_');
1809 return mangleClassName(jc.getClassName());
1812 private static String[] findAnnotation(
1813 byte[] arr, ClassData cd, final String className,
1814 final String... attrNames
1815 ) throws IOException {
1819 final String[] values = new String[attrNames.length];
1820 final boolean[] found = { false };
1821 final String jvmType = "L" + className.replace('.', '/') + ";";
1822 AnnotationParser ap = new AnnotationParser(false, true) {
1824 protected void visitAttr(String type, String attr, String at, String value) {
1825 if (type.equals(jvmType)) {
1827 for (int i = 0; i < attrNames.length; i++) {
1828 if (attrNames[i].equals(attr)) {
1837 return found[0] ? values : null;
1840 private CharSequence initField(FieldData v) {
1841 final String is = v.getInternalSig();
1842 if (is.length() == 1) {
1843 switch (is.charAt(0)) {
1849 case 'I': return " = 0;";
1851 case 'D': return " = 0.0;";
1853 throw new IllegalStateException(is);
1859 private void generateAnno(ClassData cd, final Appendable out, byte[] data) throws IOException {
1860 AnnotationParser ap = new AnnotationParser(true, false) {
1861 int[] cnt = new int[32];
1865 protected void visitAnnotationStart(String attrType, boolean top) throws IOException {
1866 final String slashType = attrType.substring(1, attrType.length() - 1);
1867 requireReference(slashType);
1869 if (cnt[depth]++ > 0) {
1873 out.append('"').append(attrType).append("\" : ");
1880 protected void visitAnnotationEnd(String type, boolean top) throws IOException {
1881 out.append("\n}\n");
1886 protected void visitValueStart(String attrName, char type) throws IOException {
1887 if (cnt[depth]++ > 0) {
1891 if (attrName != null) {
1892 out.append(attrName).append(" : ");
1900 protected void visitValueEnd(String attrName, char type) throws IOException {
1908 protected void visitAttr(String type, String attr, String attrType, String value)
1909 throws IOException {
1910 if (attr == null && value == null) {
1917 protected void visitEnumAttr(String type, String attr, String attrType, String value)
1918 throws IOException {
1919 final String slashType = attrType.substring(1, attrType.length() - 1);
1920 requireReference(slashType);
1922 out.append(accessClass(mangleClassName(slashType)))
1923 .append("(false).constructor.fld_").append(value);
1929 private static String outputArg(Appendable out, String[] args, int indx) throws IOException {
1930 final String name = args[indx];
1934 if (name.contains(",")) {
1935 throw new IOException("Wrong parameter with ',': " + name);
1941 final void emitNoFlush(
1943 final Appendable out,
1944 final String format, final CharSequence... params
1945 ) throws IOException {
1946 emitImpl(out, format, params);
1950 final Appendable out,
1951 final String format, final CharSequence... params
1952 ) throws IOException {
1954 emitImpl(out, format, params);
1956 static void emitImpl(final Appendable out,
1957 final String format,
1958 final CharSequence... params) throws IOException {
1959 final int length = format.length();
1962 int paramOffset = format.indexOf('@');
1963 while ((paramOffset != -1) && (paramOffset < (length - 1))) {
1964 final char paramChar = format.charAt(paramOffset + 1);
1965 if ((paramChar >= '1') && (paramChar <= '9')) {
1966 final int paramIndex = paramChar - '0' - 1;
1968 out.append(format, processed, paramOffset);
1969 out.append(params[paramIndex]);
1972 processed = paramOffset + 1;
1975 paramOffset = format.indexOf('@', paramOffset + 1);
1978 out.append(format, processed, length);
1981 private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {
1982 out.append("} catch (e) {\n");
1984 for (TrapData e : traps) {
1988 if (e.catch_cpx != 0) { //not finally
1989 final String classInternalName = jc.getClassName(e.catch_cpx);
1990 addReference(classInternalName);
1991 out.append("e = vm.java_lang_Throwable(false).bck2BrwsrCnvrt(e);");
1992 out.append("if (e.$instOf_" + classInternalName.replace('/', '_') + ") {");
1993 out.append("var stA0 = e;");
1994 goTo(out, current, e.handler_pc, topMostLabel);
1997 finallyPC = e.handler_pc;
2000 if (finallyPC == -1) {
2001 out.append("throw e;");
2003 out.append("var stA0 = e;");
2004 goTo(out, current, finallyPC, topMostLabel);
2009 private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {
2012 out.append("{ gt = 0; continue X_" + to + "; }");
2014 out.append("{ gt = " + to + "; continue X_0; }");
2017 out.append("{ gt = " + to + "; break IF; }");
2021 private static void emitIf(
2023 Appendable out, String pattern,
2025 int current, int to, int canBack
2026 ) throws IOException {
2028 emitImpl(out, pattern, param);
2029 goTo(out, current, to, canBack);
2032 private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {
2035 case 4: jvmType = "[Z"; break;
2036 case 5: jvmType = "[C"; break;
2037 case 6: jvmType = "[F"; break;
2038 case 7: jvmType = "[D"; break;
2039 case 8: jvmType = "[B"; break;
2040 case 9: jvmType = "[S"; break;
2041 case 10: jvmType = "[I"; break;
2042 case 11: jvmType = "[J"; break;
2043 default: throw new IllegalStateException("Array type: " + atype);
2045 emit(smapper, out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(true, '@3', @1);",
2046 smapper.popI(), smapper.pushA(), jvmType);
2049 private void generateANewArray(int type, final StackMapper smapper) throws IOException {
2050 String typeName = jc.getClassName(type);
2051 if (typeName.startsWith("[")) {
2052 typeName = "[" + typeName;
2054 typeName = "[L" + typeName + ";";
2056 emit(smapper, out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(false, '@3', @1);",
2057 smapper.popI(), smapper.pushA(), typeName);
2060 private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {
2061 String typeName = jc.getClassName(type);
2062 int dim = readUByte(byteCodes, ++i);
2063 StringBuilder dims = new StringBuilder();
2065 for (int d = 0; d < dim; d++) {
2067 dims.insert(1, ",");
2069 dims.insert(1, smapper.popI());
2072 emit(smapper, out, "var @2 = Array.prototype.multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3II('@3', @1, 0);",
2073 dims.toString(), smapper.pushA(), typeName);
2077 private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2078 int table = i / 4 * 4 + 4;
2079 int dflt = i + readInt4(byteCodes, table);
2081 int low = readInt4(byteCodes, table);
2083 int high = readInt4(byteCodes, table);
2085 out.append("switch (").append(smapper.popI()).append(") {\n");
2086 while (low <= high) {
2087 int offset = i + readInt4(byteCodes, table);
2089 out.append(" case " + low).append(":"); goTo(out, i, offset, topMostLabel); out.append('\n');
2092 out.append(" default: ");
2093 goTo(out, i, dflt, topMostLabel);
2099 private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2100 int table = i / 4 * 4 + 4;
2101 int dflt = i + readInt4(byteCodes, table);
2103 int n = readInt4(byteCodes, table);
2105 out.append("switch (").append(smapper.popI()).append(") {\n");
2107 int cnstnt = readInt4(byteCodes, table);
2109 int offset = i + readInt4(byteCodes, table);
2111 out.append(" case " + cnstnt).append(": "); goTo(out, i, offset, topMostLabel); out.append('\n');
2113 out.append(" default: ");
2114 goTo(out, i, dflt, topMostLabel);
2120 private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {
2121 final String type = jc.getClassName(indx);
2122 if (!type.startsWith("[")) {
2123 emit(smapper, out, "var @2 = @1 != null && @1.$instOf_@3 ? 1 : 0;",
2124 smapper.popA(), smapper.pushI(),
2125 type.replace('/', '_'));
2127 emit(smapper, out, "var @2 = vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('@3').isInstance__ZLjava_lang_Object_2(@1);",
2128 smapper.popA(), smapper.pushI(),
2134 private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {
2135 final String type = jc.getClassName(indx);
2136 if (!type.startsWith("[")) {
2137 emitNoFlush(smapper, out,
2138 "if (@1 !== null && !@1.$instOf_@2) throw vm.java_lang_ClassCastException(true);",
2139 smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));
2141 emitNoFlush(smapper, out, "vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('@2').cast__Ljava_lang_Object_2Ljava_lang_Object_2(@1);",
2142 smapper.getT(0, VarType.REFERENCE, false), type
2147 private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {
2148 for (int j = prev; j <= i; j++) {
2150 final int cc = readUByte(byteCodes, j);
2151 out.append(Integer.toString(cc));