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");
326 TrapData[] previousTrap = null;
327 boolean wide = false;
329 if (stackMapIterator.isEmpty()) {
335 out.append("\n var gt = 0;\n");
339 int topMostLabel = 0;
340 for (int i = 0; i < byteCodes.length; i++) {
342 stackMapIterator.advanceTo(i);
343 boolean changeInCatch = trap.advanceTo(i);
344 if (changeInCatch || lastStackFrame != stackMapIterator.getFrameIndex()) {
345 if (previousTrap != null) {
346 generateCatch(previousTrap, i, topMostLabel);
350 if (lastStackFrame != stackMapIterator.getFrameIndex()) {
355 if (openBraces > 64) {
356 for (int c = 0; c < 64; c++) {
357 out.append("break;}\n");
363 lastStackFrame = stackMapIterator.getFrameIndex();
364 lmapper.syncWithFrameLocals(stackMapIterator.getFrameLocals());
365 smapper.syncWithFrameStack(stackMapIterator.getFrameStack());
366 out.append(" X_" + i).append(": for (;;) { IF: if (gt <= " + i + ") {\n");
368 changeInCatch = true;
370 debug(" /* " + i + " */ ");
372 if (changeInCatch && trap.useTry()) {
374 previousTrap = trap.current();
376 final int c = readUByte(byteCodes, i);
379 smapper.assign(out, VarType.REFERENCE, lmapper.getA(0));
382 smapper.assign(out, VarType.INTEGER, lmapper.getI(0));
385 smapper.assign(out, VarType.LONG, lmapper.getL(0));
388 smapper.assign(out, VarType.FLOAT, lmapper.getF(0));
391 smapper.assign(out, VarType.DOUBLE, lmapper.getD(0));
394 smapper.assign(out, VarType.REFERENCE, lmapper.getA(1));
397 smapper.assign(out, VarType.INTEGER, lmapper.getI(1));
400 smapper.assign(out, VarType.LONG, lmapper.getL(1));
403 smapper.assign(out, VarType.FLOAT, lmapper.getF(1));
406 smapper.assign(out, VarType.DOUBLE, lmapper.getD(1));
409 smapper.assign(out, VarType.REFERENCE, lmapper.getA(2));
412 smapper.assign(out, VarType.INTEGER, lmapper.getI(2));
415 smapper.assign(out, VarType.LONG, lmapper.getL(2));
418 smapper.assign(out, VarType.FLOAT, lmapper.getF(2));
421 smapper.assign(out, VarType.DOUBLE, lmapper.getD(2));
424 smapper.assign(out, VarType.REFERENCE, lmapper.getA(3));
427 smapper.assign(out, VarType.INTEGER, lmapper.getI(3));
430 smapper.assign(out, VarType.LONG, lmapper.getL(3));
433 smapper.assign(out, VarType.FLOAT, lmapper.getF(3));
436 smapper.assign(out, VarType.DOUBLE, lmapper.getD(3));
440 final int indx = wide ? readUShort(byteCodes, i++)
441 : readUByte(byteCodes, i);
443 smapper.assign(out, VarType.INTEGER, lmapper.getI(indx));
448 final int indx = wide ? readUShort(byteCodes, i++)
449 : readUByte(byteCodes, i);
451 smapper.assign(out, VarType.LONG, lmapper.getL(indx));
456 final int indx = wide ? readUShort(byteCodes, i++)
457 : readUByte(byteCodes, i);
459 smapper.assign(out, VarType.FLOAT, lmapper.getF(indx));
464 final int indx = wide ? readUShort(byteCodes, i++)
465 : readUByte(byteCodes, i);
467 smapper.assign(out, VarType.DOUBLE, lmapper.getD(indx));
472 final int indx = wide ? readUShort(byteCodes, i++)
473 : readUByte(byteCodes, i);
475 smapper.assign(out, VarType.REFERENCE, lmapper.getA(indx));
480 final int indx = wide ? readUShort(byteCodes, i++)
481 : readUByte(byteCodes, i);
483 emit(smapper, out, "var @1 = @2;",
484 lmapper.setI(indx), smapper.popI());
489 final int indx = wide ? readUShort(byteCodes, i++)
490 : readUByte(byteCodes, i);
492 emit(smapper, out, "var @1 = @2;",
493 lmapper.setL(indx), smapper.popL());
498 final int indx = wide ? readUShort(byteCodes, i++)
499 : readUByte(byteCodes, i);
501 emit(smapper, out, "var @1 = @2;",
502 lmapper.setF(indx), smapper.popF());
507 final int indx = wide ? readUShort(byteCodes, i++)
508 : readUByte(byteCodes, i);
510 emit(smapper, out, "var @1 = @2;",
511 lmapper.setD(indx), smapper.popD());
516 final int indx = wide ? readUShort(byteCodes, i++)
517 : readUByte(byteCodes, i);
519 emit(smapper, out, "var @1 = @2;",
520 lmapper.setA(indx), smapper.popA());
524 emit(smapper, out, "var @1 = @2;", lmapper.setA(0), smapper.popA());
527 emit(smapper, out, "var @1 = @2;", lmapper.setI(0), smapper.popI());
530 emit(smapper, out, "var @1 = @2;", lmapper.setL(0), smapper.popL());
533 emit(smapper, out, "var @1 = @2;", lmapper.setF(0), smapper.popF());
536 emit(smapper, out, "var @1 = @2;", lmapper.setD(0), smapper.popD());
539 emit(smapper, out, "var @1 = @2;", lmapper.setA(1), smapper.popA());
542 emit(smapper, out, "var @1 = @2;", lmapper.setI(1), smapper.popI());
545 emit(smapper, out, "var @1 = @2;", lmapper.setL(1), smapper.popL());
548 emit(smapper, out, "var @1 = @2;", lmapper.setF(1), smapper.popF());
551 emit(smapper, out, "var @1 = @2;", lmapper.setD(1), smapper.popD());
554 emit(smapper, out, "var @1 = @2;", lmapper.setA(2), smapper.popA());
557 emit(smapper, out, "var @1 = @2;", lmapper.setI(2), smapper.popI());
560 emit(smapper, out, "var @1 = @2;", lmapper.setL(2), smapper.popL());
563 emit(smapper, out, "var @1 = @2;", lmapper.setF(2), smapper.popF());
566 emit(smapper, out, "var @1 = @2;", lmapper.setD(2), smapper.popD());
569 emit(smapper, out, "var @1 = @2;", lmapper.setA(3), smapper.popA());
572 emit(smapper, out, "var @1 = @2;", lmapper.setI(3), smapper.popI());
575 emit(smapper, out, "var @1 = @2;", lmapper.setL(3), smapper.popL());
578 emit(smapper, out, "var @1 = @2;", lmapper.setF(3), smapper.popF());
581 emit(smapper, out, "var @1 = @2;", lmapper.setD(3), smapper.popD());
584 smapper.replace(out, VarType.INTEGER, "(@1).add32(@2)", smapper.getI(1), smapper.popI());
587 smapper.replace(out, VarType.LONG, "(@1).add64(@2)", smapper.getL(1), smapper.popL());
590 smapper.replace(out, VarType.FLOAT, "(@1 + @2)", smapper.getF(1), smapper.popF());
593 smapper.replace(out, VarType.DOUBLE, "(@1 + @2)", smapper.getD(1), smapper.popD());
596 smapper.replace(out, VarType.INTEGER, "(@1).sub32(@2)", smapper.getI(1), smapper.popI());
599 smapper.replace(out, VarType.LONG, "(@1).sub64(@2)", smapper.getL(1), smapper.popL());
602 smapper.replace(out, VarType.FLOAT, "(@1 - @2)", smapper.getF(1), smapper.popF());
605 smapper.replace(out, VarType.DOUBLE, "(@1 - @2)", smapper.getD(1), smapper.popD());
608 smapper.replace(out, VarType.INTEGER, "(@1).mul32(@2)", smapper.getI(1), smapper.popI());
611 smapper.replace(out, VarType.LONG, "(@1).mul64(@2)", smapper.getL(1), smapper.popL());
614 smapper.replace(out, VarType.FLOAT, "(@1 * @2)", smapper.getF(1), smapper.popF());
617 smapper.replace(out, VarType.DOUBLE, "(@1 * @2)", smapper.getD(1), smapper.popD());
620 smapper.replace(out, VarType.INTEGER, "(@1).div32(@2)",
621 smapper.getI(1), smapper.popI());
624 smapper.replace(out, VarType.LONG, "(@1).div64(@2)",
625 smapper.getL(1), smapper.popL());
628 smapper.replace(out, VarType.FLOAT, "(@1 / @2)", smapper.getF(1), smapper.popF());
631 smapper.replace(out, VarType.DOUBLE, "(@1 / @2)", smapper.getD(1), smapper.popD());
634 smapper.replace(out, VarType.INTEGER, "(@1).mod32(@2)",
635 smapper.getI(1), smapper.popI());
638 smapper.replace(out, VarType.LONG, "(@1).mod64(@2)",
639 smapper.getL(1), smapper.popL());
642 smapper.replace(out, VarType.FLOAT, "(@1 % @2)", smapper.getF(1), smapper.popF());
645 smapper.replace(out, VarType.DOUBLE, "(@1 % @2)", smapper.getD(1), smapper.popD());
648 smapper.replace(out, VarType.INTEGER, "(@1 & @2)", smapper.getI(1), smapper.popI());
651 smapper.replace(out, VarType.LONG, "(@1).and64(@2)", smapper.getL(1), smapper.popL());
654 smapper.replace(out, VarType.INTEGER, "(@1 | @2)", smapper.getI(1), smapper.popI());
657 smapper.replace(out, VarType.LONG, "(@1).or64(@2)", smapper.getL(1), smapper.popL());
660 smapper.replace(out, VarType.INTEGER, "(@1 ^ @2)", smapper.getI(1), smapper.popI());
663 smapper.replace(out, VarType.LONG, "(@1).xor64(@2)", smapper.getL(1), smapper.popL());
666 smapper.replace(out, VarType.INTEGER, "(@1).neg32()", smapper.getI(0));
669 smapper.replace(out, VarType.LONG, "(@1).neg64()", smapper.getL(0));
672 smapper.replace(out, VarType.FLOAT, "(-@1)", smapper.getF(0));
675 smapper.replace(out, VarType.DOUBLE, "(-@1)", smapper.getD(0));
678 smapper.replace(out, VarType.INTEGER, "(@1 << @2)", smapper.getI(1), smapper.popI());
681 smapper.replace(out, VarType.LONG, "(@1).shl64(@2)", smapper.getL(1), smapper.popI());
684 smapper.replace(out, VarType.INTEGER, "(@1 >> @2)", smapper.getI(1), smapper.popI());
687 smapper.replace(out, VarType.LONG, "(@1).shr64(@2)", smapper.getL(1), smapper.popI());
690 smapper.replace(out, VarType.INTEGER, "(@1 >>> @2)", smapper.getI(1), smapper.popI());
693 smapper.replace(out, VarType.LONG, "(@1).ushr64(@2)", smapper.getL(1), smapper.popI());
697 final int varIndx = wide ? readUShort(byteCodes, i++)
698 : readUByte(byteCodes, i);
700 final int incrBy = wide ? readShort(byteCodes, i++)
704 emit(smapper, out, "@1++;", lmapper.getI(varIndx));
706 emit(smapper, out, "@1 += @2;",
707 lmapper.getI(varIndx),
708 Integer.toString(incrBy));
713 emit(smapper, out, "return;");
716 emit(smapper, out, "return @1;", smapper.popI());
719 emit(smapper, out, "return @1;", smapper.popL());
722 emit(smapper, out, "return @1;", smapper.popF());
725 emit(smapper, out, "return @1;", smapper.popD());
728 emit(smapper, out, "return @1;", smapper.popA());
731 smapper.replace(out, VarType.LONG, "@1", smapper.getI(0));
734 smapper.replace(out, VarType.FLOAT, "@1", smapper.getI(0));
737 smapper.replace(out, VarType.DOUBLE, "@1", smapper.getI(0));
740 smapper.replace(out, VarType.INTEGER, "(@1).toInt32()", smapper.getL(0));
744 smapper.replace(out, VarType.FLOAT, "(@1).toFP()", smapper.getL(0));
747 smapper.replace(out, VarType.DOUBLE, "(@1).toFP()", smapper.getL(0));
750 smapper.replace(out, VarType.DOUBLE, "@1",
754 smapper.replace(out, VarType.FLOAT, "@1",
758 smapper.replace(out, VarType.INTEGER, "(@1).toInt32()",
762 smapper.replace(out, VarType.LONG, "(@1).toLong()",
766 smapper.replace(out, VarType.INTEGER, "(@1).toInt32()",
770 smapper.replace(out, VarType.LONG, "(@1).toLong()", smapper.getD(0));
773 smapper.replace(out, VarType.INTEGER, "(@1).toInt8()", smapper.getI(0));
778 smapper.replace(out, VarType.INTEGER, "(@1).toInt16()", smapper.getI(0));
780 case opc_aconst_null:
781 smapper.assign(out, VarType.REFERENCE, "null");
784 smapper.assign(out, VarType.INTEGER, "-1");
787 smapper.assign(out, VarType.INTEGER, "0");
790 smapper.assign(out, VarType.DOUBLE, "0");
793 smapper.assign(out, VarType.LONG, "0");
796 smapper.assign(out, VarType.FLOAT, "0");
799 smapper.assign(out, VarType.INTEGER, "1");
802 smapper.assign(out, VarType.LONG, "1");
805 smapper.assign(out, VarType.FLOAT, "1");
808 smapper.assign(out, VarType.DOUBLE, "1");
811 smapper.assign(out, VarType.INTEGER, "2");
814 smapper.assign(out, VarType.FLOAT, "2");
817 smapper.assign(out, VarType.INTEGER, "3");
820 smapper.assign(out, VarType.INTEGER, "4");
823 smapper.assign(out, VarType.INTEGER, "5");
826 int indx = readUByte(byteCodes, ++i);
827 String v = encodeConstant(indx);
828 int type = VarType.fromConstantType(jc.getTag(indx));
829 emit(smapper, out, "var @1 = @2;", smapper.pushT(type), v);
834 int indx = readUShortArg(byteCodes, i);
836 String v = encodeConstant(indx);
837 int type = VarType.fromConstantType(jc.getTag(indx));
838 if (type == VarType.LONG) {
839 final Long lv = new Long(v);
840 final int low = (int)(lv.longValue() & 0xFFFFFFFF);
841 final int hi = (int)(lv.longValue() >> 32);
843 smapper.assign(out, VarType.LONG, "0x" + Integer.toHexString(low));
845 smapper.assign(out, VarType.LONG,
846 "0x" + Integer.toHexString(hi) + ".next32(0x" +
847 Integer.toHexString(low) + ")"
851 smapper.assign(out, type, v);
856 emit(smapper, out, "var @3 = (@2).compare64(@1);",
857 smapper.popL(), smapper.popL(), smapper.pushI());
861 emit(smapper, out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
862 smapper.popF(), smapper.popF(), smapper.pushI());
866 emit(smapper, out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
867 smapper.popD(), smapper.popD(), smapper.pushI());
870 i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),
871 "===", topMostLabel);
874 i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),
875 "!==", topMostLabel);
878 i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),
882 int indx = i + readShortArg(byteCodes, i);
883 emitIf(smapper, out, "if (@1 == 0) ",
884 smapper.popI(), i, indx, topMostLabel);
889 int indx = i + readShortArg(byteCodes, i);
890 emitIf(smapper, out, "if (@1 != 0) ",
891 smapper.popI(), i, indx, topMostLabel);
896 int indx = i + readShortArg(byteCodes, i);
897 emitIf(smapper, out, "if (@1 < 0) ",
898 smapper.popI(), i, indx, topMostLabel);
903 int indx = i + readShortArg(byteCodes, i);
904 emitIf(smapper, out, "if (@1 <= 0) ",
905 smapper.popI(), i, indx, topMostLabel);
910 int indx = i + readShortArg(byteCodes, i);
911 emitIf(smapper, out, "if (@1 > 0) ",
912 smapper.popI(), i, indx, topMostLabel);
917 int indx = i + readShortArg(byteCodes, i);
918 emitIf(smapper, out, "if (@1 >= 0) ",
919 smapper.popI(), i, indx, topMostLabel);
923 case opc_ifnonnull: {
924 int indx = i + readShortArg(byteCodes, i);
925 emitIf(smapper, out, "if (@1 !== null) ",
926 smapper.popA(), i, indx, topMostLabel);
931 int indx = i + readShortArg(byteCodes, i);
932 emitIf(smapper, out, "if (@1 === null) ",
933 smapper.popA(), i, indx, topMostLabel);
938 i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),
942 i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),
946 i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),
950 i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),
954 i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),
959 int indx = i + readShortArg(byteCodes, i);
960 goTo(out, i, indx, topMostLabel);
964 case opc_lookupswitch: {
965 i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);
968 case opc_tableswitch: {
969 i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);
972 case opc_invokeinterface: {
973 i = invokeVirtualMethod(byteCodes, i, smapper) + 2;
976 case opc_invokevirtual:
977 i = invokeVirtualMethod(byteCodes, i, smapper);
979 case opc_invokespecial:
980 i = invokeStaticMethod(byteCodes, i, smapper, false);
982 case opc_invokestatic:
983 i = invokeStaticMethod(byteCodes, i, smapper, true);
986 int indx = readUShortArg(byteCodes, i);
987 String ci = jc.getClassName(indx);
988 emit(smapper, out, "var @1 = new @2;",
989 smapper.pushA(), accessClass(mangleClassName(ci)));
995 int atype = readUByte(byteCodes, ++i);
996 generateNewArray(atype, smapper);
998 case opc_anewarray: {
999 int type = readUShortArg(byteCodes, i);
1001 generateANewArray(type, smapper);
1004 case opc_multianewarray: {
1005 int type = readUShortArg(byteCodes, i);
1007 i = generateMultiANewArray(type, byteCodes, i, smapper);
1010 case opc_arraylength:
1011 emit(smapper, out, "var @2 = @1.length;",
1012 smapper.popA(), smapper.pushI());
1015 emit(smapper, out, "Array.at(@3, @2, @1);",
1016 smapper.popL(), smapper.popI(), smapper.popA());
1019 emit(smapper, out, "Array.at(@3, @2, @1);",
1020 smapper.popF(), smapper.popI(), smapper.popA());
1023 emit(smapper, out, "Array.at(@3, @2, @1);",
1024 smapper.popD(), smapper.popI(), smapper.popA());
1027 emit(smapper, out, "Array.at(@3, @2, @1);",
1028 smapper.popA(), smapper.popI(), smapper.popA());
1034 emit(smapper, out, "Array.at(@3, @2, @1);",
1035 smapper.popI(), smapper.popI(), smapper.popA());
1038 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1039 smapper.popI(), smapper.popA(), smapper.pushL());
1042 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1043 smapper.popI(), smapper.popA(), smapper.pushF());
1046 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1047 smapper.popI(), smapper.popA(), smapper.pushD());
1050 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1051 smapper.popI(), smapper.popA(), smapper.pushA());
1057 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1058 smapper.popI(), smapper.popA(), smapper.pushI());
1066 final Variable v = smapper.get(0);
1067 emit(smapper, out, "var @1 = @2;", smapper.pushT(v.getType()), v);
1071 final Variable vi1 = smapper.get(0);
1073 if (vi1.isCategory2()) {
1074 emit(smapper, out, "var @1 = @2;",
1075 smapper.pushT(vi1.getType()), vi1);
1077 final Variable vi2 = smapper.get(1);
1078 emit(smapper, out, "var @1 = @2, @3 = @4;",
1079 smapper.pushT(vi2.getType()), vi2,
1080 smapper.pushT(vi1.getType()), vi1);
1085 final Variable vi1 = smapper.pop(out);
1086 final Variable vi2 = smapper.pop(out);
1087 final Variable vo3 = smapper.pushT(vi1.getType());
1088 final Variable vo2 = smapper.pushT(vi2.getType());
1089 final Variable vo1 = smapper.pushT(vi1.getType());
1091 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1092 vo1, vi1, vo2, vi2, vo3, vo1);
1096 final Variable vi1 = smapper.pop(out);
1097 final Variable vi2 = smapper.pop(out);
1099 if (vi1.isCategory2()) {
1100 final Variable vo3 = smapper.pushT(vi1.getType());
1101 final Variable vo2 = smapper.pushT(vi2.getType());
1102 final Variable vo1 = smapper.pushT(vi1.getType());
1104 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1105 vo1, vi1, vo2, vi2, vo3, vo1);
1107 final Variable vi3 = smapper.pop(out);
1108 final Variable vo5 = smapper.pushT(vi2.getType());
1109 final Variable vo4 = smapper.pushT(vi1.getType());
1110 final Variable vo3 = smapper.pushT(vi3.getType());
1111 final Variable vo2 = smapper.pushT(vi2.getType());
1112 final Variable vo1 = smapper.pushT(vi1.getType());
1114 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6,",
1115 vo1, vi1, vo2, vi2, vo3, vi3);
1116 emit(smapper, out, " @1 = @2, @3 = @4;",
1117 vo4, vo1, vo5, vo2);
1122 final Variable vi1 = smapper.pop(out);
1123 final Variable vi2 = smapper.pop(out);
1125 if (vi2.isCategory2()) {
1126 final Variable vo3 = smapper.pushT(vi1.getType());
1127 final Variable vo2 = smapper.pushT(vi2.getType());
1128 final Variable vo1 = smapper.pushT(vi1.getType());
1130 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1131 vo1, vi1, vo2, vi2, vo3, vo1);
1133 final Variable vi3 = smapper.pop(out);
1134 final Variable vo4 = smapper.pushT(vi1.getType());
1135 final Variable vo3 = smapper.pushT(vi3.getType());
1136 final Variable vo2 = smapper.pushT(vi2.getType());
1137 final Variable vo1 = smapper.pushT(vi1.getType());
1139 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1140 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1145 final Variable vi1 = smapper.pop(out);
1146 final Variable vi2 = smapper.pop(out);
1148 if (vi1.isCategory2()) {
1149 if (vi2.isCategory2()) {
1150 final Variable vo3 = smapper.pushT(vi1.getType());
1151 final Variable vo2 = smapper.pushT(vi2.getType());
1152 final Variable vo1 = smapper.pushT(vi1.getType());
1154 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1155 vo1, vi1, vo2, vi2, vo3, vo1);
1157 final Variable vi3 = smapper.pop(out);
1158 final Variable vo4 = smapper.pushT(vi1.getType());
1159 final Variable vo3 = smapper.pushT(vi3.getType());
1160 final Variable vo2 = smapper.pushT(vi2.getType());
1161 final Variable vo1 = smapper.pushT(vi1.getType());
1163 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1164 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1167 final Variable vi3 = smapper.pop(out);
1169 if (vi3.isCategory2()) {
1170 final Variable vo5 = smapper.pushT(vi2.getType());
1171 final Variable vo4 = smapper.pushT(vi1.getType());
1172 final Variable vo3 = smapper.pushT(vi3.getType());
1173 final Variable vo2 = smapper.pushT(vi2.getType());
1174 final Variable vo1 = smapper.pushT(vi1.getType());
1176 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6,",
1177 vo1, vi1, vo2, vi2, vo3, vi3);
1178 emit(smapper, out, " @1 = @2, @3 = @4;",
1179 vo4, vo1, vo5, vo2);
1181 final Variable vi4 = smapper.pop(out);
1182 final Variable vo6 = smapper.pushT(vi2.getType());
1183 final Variable vo5 = smapper.pushT(vi1.getType());
1184 final Variable vo4 = smapper.pushT(vi4.getType());
1185 final Variable vo3 = smapper.pushT(vi3.getType());
1186 final Variable vo2 = smapper.pushT(vi2.getType());
1187 final Variable vo1 = smapper.pushT(vi1.getType());
1189 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",
1190 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);
1191 emit(smapper, out, " @1 = @2, @3 = @4;",
1192 vo5, vo1, vo6, vo2);
1198 final Variable vi1 = smapper.get(0);
1199 final Variable vi2 = smapper.get(1);
1201 if (vi1.getType() == vi2.getType()) {
1202 final Variable tmp = smapper.pushT(vi1.getType());
1204 emit(smapper, out, "var @1 = @2, @2 = @3, @3 = @1;",
1209 smapper.pushT(vi1.getType());
1210 smapper.pushT(vi2.getType());
1215 smapper.assign(out, VarType.INTEGER,
1216 "(" + Integer.toString(byteCodes[++i]) + ")");
1219 smapper.assign(out, VarType.INTEGER,
1220 "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"
1224 case opc_getfield: {
1225 int indx = readUShortArg(byteCodes, i);
1226 String[] fi = jc.getFieldInfoName(indx);
1227 final int type = VarType.fromFieldType(fi[2].charAt(0));
1228 final String mangleClass = mangleClassName(fi[0]);
1229 final String mangleClassAccess = accessClass(mangleClass);
1230 emit(smapper, out, "var @2 = @4(false)._@3.call(@1);",
1232 smapper.pushT(type), fi[1], mangleClassAccess
1237 case opc_putfield: {
1238 int indx = readUShortArg(byteCodes, i);
1239 String[] fi = jc.getFieldInfoName(indx);
1240 final int type = VarType.fromFieldType(fi[2].charAt(0));
1241 final String mangleClass = mangleClassName(fi[0]);
1242 final String mangleClassAccess = accessClass(mangleClass);
1243 emit(smapper, out, "@4(false)._@3.call(@2, @1);",
1245 smapper.popA(), fi[1],
1251 case opc_getstatic: {
1252 int indx = readUShortArg(byteCodes, i);
1253 String[] fi = jc.getFieldInfoName(indx);
1254 final int type = VarType.fromFieldType(fi[2].charAt(0));
1255 emit(smapper, out, "var @1 = @2(false)._@3();",
1256 smapper.pushT(type),
1257 accessClass(mangleClassName(fi[0])), fi[1]);
1259 addReference(fi[0]);
1262 case opc_putstatic: {
1263 int indx = readUShortArg(byteCodes, i);
1264 String[] fi = jc.getFieldInfoName(indx);
1265 final int type = VarType.fromFieldType(fi[2].charAt(0));
1266 emit(smapper, out, "@1(false)._@2(@3);",
1267 accessClass(mangleClassName(fi[0])), fi[1],
1268 smapper.popT(type));
1270 addReference(fi[0]);
1273 case opc_checkcast: {
1274 int indx = readUShortArg(byteCodes, i);
1275 generateCheckcast(indx, smapper);
1279 case opc_instanceof: {
1280 int indx = readUShortArg(byteCodes, i);
1281 generateInstanceOf(indx, smapper);
1286 final CharSequence v = smapper.popA();
1289 emit(smapper, out, "{ var @1 = @2; throw @2; }",
1290 smapper.pushA(), v);
1294 case opc_monitorenter: {
1295 out.append("/* monitor enter */");
1300 case opc_monitorexit: {
1301 out.append("/* monitor exit */");
1312 emit(smapper, out, "throw 'unknown bytecode @1';",
1313 Integer.toString(c));
1317 generateByteCodeComment(prev, i, byteCodes);
1321 if (previousTrap != null) {
1322 generateCatch(previousTrap, byteCodes.length, topMostLabel);
1325 out.append("\n }\n");
1327 while (openBraces-- > 0) {
1333 private int generateIf(StackMapper mapper, byte[] byteCodes,
1334 int i, final CharSequence v2, final CharSequence v1,
1335 final String test, int topMostLabel
1336 ) throws IOException {
1338 int indx = i + readShortArg(byteCodes, i);
1339 out.append("if (").append(v1)
1340 .append(' ').append(test).append(' ')
1341 .append(v2).append(") ");
1342 goTo(out, i, indx, topMostLabel);
1346 private int readInt4(byte[] byteCodes, int offset) {
1347 final int d = byteCodes[offset + 0] << 24;
1348 final int c = byteCodes[offset + 1] << 16;
1349 final int b = byteCodes[offset + 2] << 8;
1350 final int a = byteCodes[offset + 3];
1351 return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);
1353 private static int readUByte(byte[] byteCodes, int offset) {
1354 return byteCodes[offset] & 0xff;
1357 private static int readUShort(byte[] byteCodes, int offset) {
1358 return ((byteCodes[offset] & 0xff) << 8)
1359 | (byteCodes[offset + 1] & 0xff);
1361 private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {
1362 return readUShort(byteCodes, offsetInstruction + 1);
1365 private static int readShort(byte[] byteCodes, int offset) {
1366 int signed = byteCodes[offset];
1367 byte b0 = (byte)signed;
1368 return (b0 << 8) | (byteCodes[offset + 1] & 0xff);
1370 private static int readShortArg(byte[] byteCodes, int offsetInstruction) {
1371 return readShort(byteCodes, offsetInstruction + 1);
1374 private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {
1376 Boolean count = null;
1377 boolean array = false;
1379 int firstPos = sig.length();
1380 while (i < descriptor.length()) {
1381 char ch = descriptor.charAt(i++);
1402 if (ch == 'J' || ch == 'D') {
1408 sig.insert(firstPos, ch);
1410 returnType[0] = '[';
1411 sig.insert(firstPos, "_3");
1420 returnType[0] = 'V';
1421 sig.insert(firstPos, 'V');
1424 int next = descriptor.indexOf(';', i);
1425 String realSig = mangleSig(descriptor, i - 1, next + 1);
1430 sig.append(realSig);
1433 sig.insert(firstPos, realSig);
1435 sig.insert(firstPos, "_3");
1437 returnType[0] = 'L';
1446 throw new IllegalStateException("Invalid char: " + ch);
1451 static String mangleSig(String sig) {
1452 return mangleSig(sig, 0, sig.length());
1455 private static String mangleMethodName(String name) {
1456 StringBuilder sb = new StringBuilder(name.length() * 2);
1457 int last = name.length();
1458 for (int i = 0; i < last; i++) {
1459 final char ch = name.charAt(i);
1461 case '_': sb.append("_1"); break;
1462 default: sb.append(ch); break;
1465 return sb.toString();
1467 private static String mangleSig(String txt, int first, int last) {
1468 StringBuilder sb = new StringBuilder((last - first) * 2);
1469 for (int i = first; i < last; i++) {
1470 final char ch = txt.charAt(i);
1472 case '/': sb.append('_'); break;
1473 case '_': sb.append("_1"); break;
1474 case ';': sb.append("_2"); break;
1475 case '[': sb.append("_3"); break;
1476 default: sb.append(ch); break;
1479 return sb.toString();
1482 private static String mangleClassName(String name) {
1483 return mangleSig(name);
1486 private static String findMethodName(MethodData m, StringBuilder cnt) {
1487 StringBuilder name = new StringBuilder();
1488 if ("<init>".equals(m.getName())) { // NOI18N
1489 name.append("cons"); // NOI18N
1490 } else if ("<clinit>".equals(m.getName())) { // NOI18N
1491 name.append("class"); // NOI18N
1493 name.append(mangleMethodName(m.getName()));
1496 countArgs(m.getInternalSig(), new char[1], name, cnt);
1497 return name.toString();
1500 static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {
1501 StringBuilder name = new StringBuilder();
1502 String descr = mi[2];//mi.getDescriptor();
1504 if ("<init>".equals(nm)) { // NOI18N
1505 name.append("cons"); // NOI18N
1507 name.append(mangleMethodName(nm));
1509 countArgs(descr, returnType, name, cnt);
1510 return name.toString();
1513 private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)
1514 throws IOException {
1515 int methodIndex = readUShortArg(byteCodes, i);
1516 String[] mi = jc.getFieldInfoName(methodIndex);
1517 char[] returnType = { 'V' };
1518 StringBuilder cnt = new StringBuilder();
1519 String mn = findMethodName(mi, cnt, returnType);
1521 final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;
1522 final CharSequence[] vars = new CharSequence[numArguments];
1524 for (int j = numArguments - 1; j >= 0; --j) {
1525 vars[j] = mapper.popValue();
1528 if (returnType[0] != 'V') {
1530 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1534 final String in = mi[0];
1535 out.append(accessClass(mangleClassName(in)));
1536 out.append("(false).");
1537 if (mn.startsWith("cons_")) {
1538 out.append("constructor.");
1544 out.append(".call(");
1546 if (numArguments > 0) {
1547 out.append(vars[0]);
1548 for (int j = 1; j < numArguments; ++j) {
1550 out.append(vars[j]);
1558 private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)
1559 throws IOException {
1560 int methodIndex = readUShortArg(byteCodes, i);
1561 String[] mi = jc.getFieldInfoName(methodIndex);
1562 char[] returnType = { 'V' };
1563 StringBuilder cnt = new StringBuilder();
1564 String mn = findMethodName(mi, cnt, returnType);
1566 final int numArguments = cnt.length() + 1;
1567 final CharSequence[] vars = new CharSequence[numArguments];
1569 for (int j = numArguments - 1; j >= 0; --j) {
1570 vars[j] = mapper.popValue();
1573 if (returnType[0] != 'V') {
1575 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1579 out.append(vars[0]).append('.');
1583 for (int j = 1; j < numArguments; ++j) {
1585 out.append(vars[j]);
1593 private void addReference(String cn) throws IOException {
1594 if (requireReference(cn)) {
1595 debug(" /* needs " + cn + " */");
1599 private void outType(String d, StringBuilder out) {
1601 while (d.charAt(0) == '[') {
1605 if (d.charAt(0) == 'L') {
1606 assert d.charAt(d.length() - 1) == ';';
1607 out.append(d.replace('/', '_').substring(0, d.length() - 1));
1613 private String encodeConstant(int entryIndex) throws IOException {
1614 String[] classRef = { null };
1615 String s = jc.stringValue(entryIndex, classRef);
1616 if (classRef[0] != null) {
1617 if (classRef[0].startsWith("[")) {
1618 s = accessClass("java_lang_Class") + "(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('" + classRef[0] + "')";
1620 addReference(classRef[0]);
1621 s = accessClass(mangleClassName(s)) + "(false).constructor.$class";
1627 private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {
1628 byte[] arr = m.findAnnotationData(true);
1632 final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";
1633 final String htmlType = "Lnet/java/html/js/JavaScriptBody;";
1634 class P extends AnnotationParser {
1640 String[] args = new String[30];
1646 protected void visitAttr(String type, String attr, String at, String value) {
1647 if (type.equals(jvmType)) {
1648 if ("body".equals(attr)) {
1650 } else if ("args".equals(attr)) {
1651 args[cnt++] = value;
1653 throw new IllegalArgumentException(attr);
1656 if (type.equals(htmlType)) {
1658 if ("body".equals(attr)) {
1660 } else if ("args".equals(attr)) {
1661 args[cnt++] = value;
1662 } else if ("javacall".equals(attr)) {
1663 javacall = "1".equals(value);
1665 throw new IllegalArgumentException(attr);
1672 if (p.body == null) {
1675 StringBuilder cnt = new StringBuilder();
1676 final String mn = findMethodName(m, cnt);
1677 out.append(destObject).append(".").append(mn);
1678 out.append(" = function(");
1681 StringBuilder toValue = new StringBuilder();
1682 for (int i = 0; i < cnt.length(); i++) {
1684 space = outputArg(out, p.args, index);
1685 if (p.html4j && space.length() > 0) {
1686 toValue.append("\n ").append(p.args[index]).append(" = vm.org_apidesign_bck2brwsr_emul_lang_System(false).toJS(").
1687 append(p.args[index]).append(");");
1691 out.append(") {").append("\n");
1692 out.append(toValue.toString());
1694 int lastSlash = jc.getClassName().lastIndexOf('/');
1695 final String pkg = jc.getClassName().substring(0, lastSlash);
1696 out.append(mangleCallbacks(pkg, p.body));
1697 requireReference(pkg + "/$JsCallbacks$");
1701 out.append("\n}\n");
1705 private static CharSequence mangleCallbacks(String pkgName, String body) {
1706 StringBuilder sb = new StringBuilder();
1709 int next = body.indexOf(".@", pos);
1711 sb.append(body.substring(pos));
1712 body = sb.toString();
1717 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {
1722 String refId = body.substring(ident, next);
1724 sb.append(body.substring(pos, ident));
1726 int sigBeg = body.indexOf('(', next);
1727 int sigEnd = body.indexOf(')', sigBeg);
1728 int colon4 = body.indexOf("::", next);
1729 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1730 throw new IllegalStateException("Malformed body " + body);
1732 String fqn = body.substring(next + 2, colon4);
1733 String method = body.substring(colon4 + 2, sigBeg);
1734 String params = body.substring(sigBeg, sigEnd + 1);
1736 int paramBeg = body.indexOf('(', sigEnd + 1);
1738 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1739 sb.append(mangleJsCallbacks(fqn, method, params, false));
1740 sb.append("(").append(refId);
1741 if (body.charAt(paramBeg + 1) != ')') {
1749 int next = body.indexOf("@", pos);
1754 sb.append(body.substring(pos));
1758 sb = new StringBuilder();
1761 sb.append(body.substring(pos, next));
1763 int sigBeg = body.indexOf('(', next);
1764 int sigEnd = body.indexOf(')', sigBeg);
1765 int colon4 = body.indexOf("::", next);
1766 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1767 throw new IllegalStateException("Malformed body " + body);
1769 String fqn = body.substring(next + 1, colon4);
1770 String method = body.substring(colon4 + 2, sigBeg);
1771 String params = body.substring(sigBeg, sigEnd + 1);
1773 int paramBeg = body.indexOf('(', sigEnd + 1);
1775 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1776 sb.append(mangleJsCallbacks(fqn, method, params, true));
1782 static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {
1783 if (params.startsWith("(")) {
1784 params = params.substring(1);
1786 if (params.endsWith(")")) {
1787 params = params.substring(0, params.length() - 1);
1789 StringBuilder sb = new StringBuilder();
1790 final String fqnu = fqn.replace('.', '_');
1791 final String rfqn = mangleClassName(fqnu);
1792 final String rm = mangleMethodName(method);
1795 StringBuilder pb = new StringBuilder();
1796 int len = params.length();
1798 while (indx < len) {
1799 char ch = params.charAt(indx);
1800 if (ch == '[' || ch == 'L') {
1801 pb.append("Ljava/lang/Object;");
1802 indx = params.indexOf(';', indx) + 1;
1808 srp = mangleSig(pb.toString());
1810 final String rp = mangleSig(params);
1811 final String mrp = mangleMethodName(rp);
1812 sb.append(rfqn).append("$").append(rm).
1813 append('$').append(mrp).append("__Ljava_lang_Object_2");
1815 sb.append('L').append(fqnu).append("_2");
1818 return sb.toString();
1821 private static String className(ClassData jc) {
1822 //return jc.getName().getInternalName().replace('/', '_');
1823 return mangleClassName(jc.getClassName());
1826 private static String[] findAnnotation(
1827 byte[] arr, ClassData cd, final String className,
1828 final String... attrNames
1829 ) throws IOException {
1833 final String[] values = new String[attrNames.length];
1834 final boolean[] found = { false };
1835 final String jvmType = "L" + className.replace('.', '/') + ";";
1836 AnnotationParser ap = new AnnotationParser(false, true) {
1838 protected void visitAttr(String type, String attr, String at, String value) {
1839 if (type.equals(jvmType)) {
1841 for (int i = 0; i < attrNames.length; i++) {
1842 if (attrNames[i].equals(attr)) {
1851 return found[0] ? values : null;
1854 private CharSequence initField(FieldData v) {
1855 final String is = v.getInternalSig();
1856 if (is.length() == 1) {
1857 switch (is.charAt(0)) {
1863 case 'I': return " = 0;";
1865 case 'D': return " = 0.0;";
1867 throw new IllegalStateException(is);
1873 private void generateAnno(ClassData cd, final Appendable out, byte[] data) throws IOException {
1874 AnnotationParser ap = new AnnotationParser(true, false) {
1875 int[] cnt = new int[32];
1879 protected void visitAnnotationStart(String attrType, boolean top) throws IOException {
1880 final String slashType = attrType.substring(1, attrType.length() - 1);
1881 requireReference(slashType);
1883 if (cnt[depth]++ > 0) {
1887 out.append('"').append(attrType).append("\" : ");
1894 protected void visitAnnotationEnd(String type, boolean top) throws IOException {
1895 out.append("\n}\n");
1900 protected void visitValueStart(String attrName, char type) throws IOException {
1901 if (cnt[depth]++ > 0) {
1905 if (attrName != null) {
1906 out.append(attrName).append(" : ");
1914 protected void visitValueEnd(String attrName, char type) throws IOException {
1922 protected void visitAttr(String type, String attr, String attrType, String value)
1923 throws IOException {
1924 if (attr == null && value == null) {
1931 protected void visitEnumAttr(String type, String attr, String attrType, String value)
1932 throws IOException {
1933 final String slashType = attrType.substring(1, attrType.length() - 1);
1934 requireReference(slashType);
1936 out.append(accessClass(mangleClassName(slashType)))
1937 .append("(false).constructor.fld_").append(value);
1943 private static String outputArg(Appendable out, String[] args, int indx) throws IOException {
1944 final String name = args[indx];
1948 if (name.contains(",")) {
1949 throw new IOException("Wrong parameter with ',': " + name);
1955 final void emitNoFlush(
1957 final Appendable out,
1958 final String format, final CharSequence... params
1959 ) throws IOException {
1960 emitImpl(out, format, params);
1964 final Appendable out,
1965 final String format, final CharSequence... params
1966 ) throws IOException {
1968 emitImpl(out, format, params);
1970 static void emitImpl(final Appendable out,
1971 final String format,
1972 final CharSequence... params) throws IOException {
1973 final int length = format.length();
1976 int paramOffset = format.indexOf('@');
1977 while ((paramOffset != -1) && (paramOffset < (length - 1))) {
1978 final char paramChar = format.charAt(paramOffset + 1);
1979 if ((paramChar >= '1') && (paramChar <= '9')) {
1980 final int paramIndex = paramChar - '0' - 1;
1982 out.append(format, processed, paramOffset);
1983 out.append(params[paramIndex]);
1986 processed = paramOffset + 1;
1989 paramOffset = format.indexOf('@', paramOffset + 1);
1992 out.append(format, processed, length);
1995 private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {
1996 out.append("} catch (e) {\n");
1998 for (TrapData e : traps) {
2002 if (e.catch_cpx != 0) { //not finally
2003 final String classInternalName = jc.getClassName(e.catch_cpx);
2004 addReference(classInternalName);
2005 out.append("e = vm.java_lang_Throwable(false).bck2BrwsrCnvrt(e);");
2006 out.append("if (e.$instOf_" + classInternalName.replace('/', '_') + ") {");
2007 out.append("var stA0 = e;");
2008 goTo(out, current, e.handler_pc, topMostLabel);
2011 finallyPC = e.handler_pc;
2014 if (finallyPC == -1) {
2015 out.append("throw e;");
2017 out.append("var stA0 = e;");
2018 goTo(out, current, finallyPC, topMostLabel);
2023 private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {
2026 out.append("{ gt = 0; continue X_" + to + "; }");
2028 out.append("{ gt = " + to + "; continue X_0; }");
2031 out.append("{ gt = " + to + "; break IF; }");
2035 private static void emitIf(
2037 Appendable out, String pattern,
2039 int current, int to, int canBack
2040 ) throws IOException {
2042 emitImpl(out, pattern, param);
2043 goTo(out, current, to, canBack);
2046 private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {
2049 case 4: jvmType = "[Z"; break;
2050 case 5: jvmType = "[C"; break;
2051 case 6: jvmType = "[F"; break;
2052 case 7: jvmType = "[D"; break;
2053 case 8: jvmType = "[B"; break;
2054 case 9: jvmType = "[S"; break;
2055 case 10: jvmType = "[I"; break;
2056 case 11: jvmType = "[J"; break;
2057 default: throw new IllegalStateException("Array type: " + atype);
2059 emit(smapper, out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(true, '@3', @1);",
2060 smapper.popI(), smapper.pushA(), jvmType);
2063 private void generateANewArray(int type, final StackMapper smapper) throws IOException {
2064 String typeName = jc.getClassName(type);
2065 if (typeName.startsWith("[")) {
2066 typeName = "[" + typeName;
2068 typeName = "[L" + typeName + ";";
2070 emit(smapper, out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(false, '@3', @1);",
2071 smapper.popI(), smapper.pushA(), typeName);
2074 private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {
2075 String typeName = jc.getClassName(type);
2076 int dim = readUByte(byteCodes, ++i);
2077 StringBuilder dims = new StringBuilder();
2079 for (int d = 0; d < dim; d++) {
2081 dims.insert(1, ",");
2083 dims.insert(1, smapper.popI());
2086 emit(smapper, out, "var @2 = Array.prototype.multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3II('@3', @1, 0);",
2087 dims.toString(), smapper.pushA(), typeName);
2091 private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2092 int table = i / 4 * 4 + 4;
2093 int dflt = i + readInt4(byteCodes, table);
2095 int low = readInt4(byteCodes, table);
2097 int high = readInt4(byteCodes, table);
2099 out.append("switch (").append(smapper.popI()).append(") {\n");
2100 while (low <= high) {
2101 int offset = i + readInt4(byteCodes, table);
2103 out.append(" case " + low).append(":"); goTo(out, i, offset, topMostLabel); out.append('\n');
2106 out.append(" default: ");
2107 goTo(out, i, dflt, topMostLabel);
2113 private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2114 int table = i / 4 * 4 + 4;
2115 int dflt = i + readInt4(byteCodes, table);
2117 int n = readInt4(byteCodes, table);
2119 out.append("switch (").append(smapper.popI()).append(") {\n");
2121 int cnstnt = readInt4(byteCodes, table);
2123 int offset = i + readInt4(byteCodes, table);
2125 out.append(" case " + cnstnt).append(": "); goTo(out, i, offset, topMostLabel); out.append('\n');
2127 out.append(" default: ");
2128 goTo(out, i, dflt, topMostLabel);
2134 private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {
2135 final String type = jc.getClassName(indx);
2136 if (!type.startsWith("[")) {
2137 emit(smapper, out, "var @2 = @1 != null && @1.$instOf_@3 ? 1 : 0;",
2138 smapper.popA(), smapper.pushI(),
2139 type.replace('/', '_'));
2141 emit(smapper, out, "var @2 = vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('@3').isInstance__ZLjava_lang_Object_2(@1);",
2142 smapper.popA(), smapper.pushI(),
2148 private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {
2149 final String type = jc.getClassName(indx);
2150 if (!type.startsWith("[")) {
2151 emitNoFlush(smapper, out,
2152 "if (@1 !== null && !@1.$instOf_@2) throw vm.java_lang_ClassCastException(true);",
2153 smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));
2155 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);",
2156 smapper.getT(0, VarType.REFERENCE, false), type
2161 private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {
2162 for (int j = prev; j <= i; j++) {
2164 final int cc = readUByte(byteCodes, j);
2165 out.append(Integer.toString(cc));