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()) {
346 if (openBraces > 64) {
347 for (int c = 0; c < 64; c++) {
348 out.append("break;}\n");
354 lastStackFrame = stackMapIterator.getFrameIndex();
355 lmapper.syncWithFrameLocals(stackMapIterator.getFrameLocals());
356 smapper.syncWithFrameStack(stackMapIterator.getFrameStack());
357 out.append(" X_" + i).append(": for (;;) { IF: if (gt <= " + i + ") {\n");
359 changeInCatch = true;
361 debug(" /* " + i + " */ ");
363 if (changeInCatch && trap.useTry()) {
365 previousTrap = trap.current();
367 final int c = readUByte(byteCodes, i);
370 smapper.assign(out, VarType.REFERENCE, lmapper.getA(0));
373 smapper.assign(out, VarType.INTEGER, lmapper.getI(0));
376 smapper.assign(out, VarType.LONG, lmapper.getL(0));
379 smapper.assign(out, VarType.FLOAT, lmapper.getF(0));
382 smapper.assign(out, VarType.DOUBLE, lmapper.getD(0));
385 smapper.assign(out, VarType.REFERENCE, lmapper.getA(1));
388 smapper.assign(out, VarType.INTEGER, lmapper.getI(1));
391 smapper.assign(out, VarType.LONG, lmapper.getL(1));
394 smapper.assign(out, VarType.FLOAT, lmapper.getF(1));
397 smapper.assign(out, VarType.DOUBLE, lmapper.getD(1));
400 smapper.assign(out, VarType.REFERENCE, lmapper.getA(2));
403 smapper.assign(out, VarType.INTEGER, lmapper.getI(2));
406 smapper.assign(out, VarType.LONG, lmapper.getL(2));
409 smapper.assign(out, VarType.FLOAT, lmapper.getF(2));
412 smapper.assign(out, VarType.DOUBLE, lmapper.getD(2));
415 smapper.assign(out, VarType.REFERENCE, lmapper.getA(3));
418 smapper.assign(out, VarType.INTEGER, lmapper.getI(3));
421 smapper.assign(out, VarType.LONG, lmapper.getL(3));
424 smapper.assign(out, VarType.FLOAT, lmapper.getF(3));
427 smapper.assign(out, VarType.DOUBLE, lmapper.getD(3));
431 final int indx = wide ? readUShort(byteCodes, i++)
432 : readUByte(byteCodes, i);
434 smapper.assign(out, VarType.INTEGER, lmapper.getI(indx));
439 final int indx = wide ? readUShort(byteCodes, i++)
440 : readUByte(byteCodes, i);
442 smapper.assign(out, VarType.LONG, lmapper.getL(indx));
447 final int indx = wide ? readUShort(byteCodes, i++)
448 : readUByte(byteCodes, i);
450 smapper.assign(out, VarType.FLOAT, lmapper.getF(indx));
455 final int indx = wide ? readUShort(byteCodes, i++)
456 : readUByte(byteCodes, i);
458 smapper.assign(out, VarType.DOUBLE, lmapper.getD(indx));
463 final int indx = wide ? readUShort(byteCodes, i++)
464 : readUByte(byteCodes, i);
466 smapper.assign(out, VarType.REFERENCE, lmapper.getA(indx));
471 final int indx = wide ? readUShort(byteCodes, i++)
472 : readUByte(byteCodes, i);
474 emit(smapper, out, "var @1 = @2;",
475 lmapper.setI(indx), smapper.popI());
480 final int indx = wide ? readUShort(byteCodes, i++)
481 : readUByte(byteCodes, i);
483 emit(smapper, out, "var @1 = @2;",
484 lmapper.setL(indx), smapper.popL());
489 final int indx = wide ? readUShort(byteCodes, i++)
490 : readUByte(byteCodes, i);
492 emit(smapper, out, "var @1 = @2;",
493 lmapper.setF(indx), smapper.popF());
498 final int indx = wide ? readUShort(byteCodes, i++)
499 : readUByte(byteCodes, i);
501 emit(smapper, out, "var @1 = @2;",
502 lmapper.setD(indx), smapper.popD());
507 final int indx = wide ? readUShort(byteCodes, i++)
508 : readUByte(byteCodes, i);
510 emit(smapper, out, "var @1 = @2;",
511 lmapper.setA(indx), smapper.popA());
515 emit(smapper, out, "var @1 = @2;", lmapper.setA(0), smapper.popA());
518 emit(smapper, out, "var @1 = @2;", lmapper.setI(0), smapper.popI());
521 emit(smapper, out, "var @1 = @2;", lmapper.setL(0), smapper.popL());
524 emit(smapper, out, "var @1 = @2;", lmapper.setF(0), smapper.popF());
527 emit(smapper, out, "var @1 = @2;", lmapper.setD(0), smapper.popD());
530 emit(smapper, out, "var @1 = @2;", lmapper.setA(1), smapper.popA());
533 emit(smapper, out, "var @1 = @2;", lmapper.setI(1), smapper.popI());
536 emit(smapper, out, "var @1 = @2;", lmapper.setL(1), smapper.popL());
539 emit(smapper, out, "var @1 = @2;", lmapper.setF(1), smapper.popF());
542 emit(smapper, out, "var @1 = @2;", lmapper.setD(1), smapper.popD());
545 emit(smapper, out, "var @1 = @2;", lmapper.setA(2), smapper.popA());
548 emit(smapper, out, "var @1 = @2;", lmapper.setI(2), smapper.popI());
551 emit(smapper, out, "var @1 = @2;", lmapper.setL(2), smapper.popL());
554 emit(smapper, out, "var @1 = @2;", lmapper.setF(2), smapper.popF());
557 emit(smapper, out, "var @1 = @2;", lmapper.setD(2), smapper.popD());
560 emit(smapper, out, "var @1 = @2;", lmapper.setA(3), smapper.popA());
563 emit(smapper, out, "var @1 = @2;", lmapper.setI(3), smapper.popI());
566 emit(smapper, out, "var @1 = @2;", lmapper.setL(3), smapper.popL());
569 emit(smapper, out, "var @1 = @2;", lmapper.setF(3), smapper.popF());
572 emit(smapper, out, "var @1 = @2;", lmapper.setD(3), smapper.popD());
575 smapper.replace(out, VarType.INTEGER, "@1.add32(@2)", smapper.getI(1), smapper.popI());
578 smapper.replace(out, VarType.LONG, "@1.add64(@2)", smapper.getL(1), smapper.popL());
581 smapper.replace(out, VarType.FLOAT, "(@1 + @2)", smapper.getF(1), smapper.popF());
584 smapper.replace(out, VarType.DOUBLE, "(@1 + @2)", smapper.getD(1), smapper.popD());
587 smapper.replace(out, VarType.INTEGER, "@1.sub32(@2)", smapper.getI(1), smapper.popI());
590 smapper.replace(out, VarType.LONG, "@1.sub64(@2)", smapper.getL(1), smapper.popL());
593 smapper.replace(out, VarType.FLOAT, "(@1 - @2)", smapper.getF(1), smapper.popF());
596 smapper.replace(out, VarType.DOUBLE, "(@1 - @2)", smapper.getD(1), smapper.popD());
599 smapper.replace(out, VarType.INTEGER, "@1.mul32(@2)", smapper.getI(1), smapper.popI());
602 smapper.replace(out, VarType.LONG, "@1.mul64(@2)", smapper.getL(1), smapper.popL());
605 smapper.replace(out, VarType.FLOAT, "(@1 * @2)", smapper.getF(1), smapper.popF());
608 smapper.replace(out, VarType.DOUBLE, "(@1 * @2)", smapper.getD(1), smapper.popD());
611 smapper.replace(out, VarType.INTEGER, "@1.div32(@2)",
612 smapper.getI(1), smapper.popI());
615 smapper.replace(out, VarType.LONG, "@1.div64(@2)",
616 smapper.getL(1), smapper.popL());
619 smapper.replace(out, VarType.FLOAT, "(@1 / @2)", smapper.getF(1), smapper.popF());
622 smapper.replace(out, VarType.DOUBLE, "(@1 / @2)", smapper.getD(1), smapper.popD());
625 smapper.replace(out, VarType.INTEGER, "@1.mod32(@2)",
626 smapper.getI(1), smapper.popI());
629 smapper.replace(out, VarType.LONG, "@1.mod64(@2)",
630 smapper.getL(1), smapper.popL());
633 smapper.replace(out, VarType.FLOAT, "(@1 % @2)", smapper.getF(1), smapper.popF());
636 smapper.replace(out, VarType.DOUBLE, "(@1 % @2)", smapper.getD(1), smapper.popD());
639 smapper.replace(out, VarType.INTEGER, "(@1 & @2)", smapper.getI(1), smapper.popI());
642 smapper.replace(out, VarType.LONG, "@1.and64(@2)", smapper.getL(1), smapper.popL());
645 smapper.replace(out, VarType.INTEGER, "(@1 | @2)", smapper.getI(1), smapper.popI());
648 smapper.replace(out, VarType.LONG, "@1.or64(@2)", smapper.getL(1), smapper.popL());
651 smapper.replace(out, VarType.INTEGER, "(@1 ^ @2)", smapper.getI(1), smapper.popI());
654 smapper.replace(out, VarType.LONG, "@1.xor64(@2)", smapper.getL(1), smapper.popL());
657 smapper.replace(out, VarType.INTEGER, "@1.neg32()", smapper.getI(0));
660 smapper.replace(out, VarType.LONG, "@1.neg64()", smapper.getL(0));
663 smapper.replace(out, VarType.FLOAT, "(-@1)", smapper.getF(0));
666 smapper.replace(out, VarType.DOUBLE, "(-@1)", smapper.getD(0));
669 smapper.replace(out, VarType.INTEGER, "(@1 << @2)", smapper.getI(1), smapper.popI());
672 smapper.replace(out, VarType.LONG, "@1.shl64(@2)", smapper.getL(1), smapper.popI());
675 smapper.replace(out, VarType.INTEGER, "(@1 >> @2)", smapper.getI(1), smapper.popI());
678 smapper.replace(out, VarType.LONG, "@1.shr64(@2)", smapper.getL(1), smapper.popI());
681 smapper.replace(out, VarType.INTEGER, "(@1 >>> @2)", smapper.getI(1), smapper.popI());
684 smapper.replace(out, VarType.LONG, "@1.ushr64(@2)", smapper.getL(1), smapper.popI());
688 final int varIndx = wide ? readUShort(byteCodes, i++)
689 : readUByte(byteCodes, i);
691 final int incrBy = wide ? readShort(byteCodes, i++)
695 emit(smapper, out, "@1++;", lmapper.getI(varIndx));
697 emit(smapper, out, "@1 += @2;",
698 lmapper.getI(varIndx),
699 Integer.toString(incrBy));
704 emit(smapper, out, "return;");
707 emit(smapper, out, "return @1;", smapper.popI());
710 emit(smapper, out, "return @1;", smapper.popL());
713 emit(smapper, out, "return @1;", smapper.popF());
716 emit(smapper, out, "return @1;", smapper.popD());
719 emit(smapper, out, "return @1;", smapper.popA());
722 smapper.replace(out, VarType.LONG, "@1", smapper.getI(0));
725 smapper.replace(out, VarType.FLOAT, "@1", smapper.getI(0));
728 smapper.replace(out, VarType.DOUBLE, "@1", smapper.getI(0));
731 smapper.replace(out, VarType.INTEGER, "@1.toInt32()", smapper.getL(0));
735 smapper.replace(out, VarType.FLOAT, "@1.toFP()", smapper.getL(0));
738 smapper.replace(out, VarType.DOUBLE, "@1.toFP()", smapper.getL(0));
741 smapper.replace(out, VarType.DOUBLE, "@1",
745 smapper.replace(out, VarType.FLOAT, "@1",
749 smapper.replace(out, VarType.INTEGER, "@1.toInt32()",
753 smapper.replace(out, VarType.LONG, "@1.toLong()",
757 smapper.replace(out, VarType.INTEGER, "@1.toInt32()",
761 smapper.replace(out, VarType.LONG, "@1.toLong()", smapper.getD(0));
764 smapper.replace(out, VarType.INTEGER, "@1.toInt8()", smapper.getI(0));
769 smapper.replace(out, VarType.INTEGER, "@1.toInt16()", smapper.getI(0));
771 case opc_aconst_null:
772 smapper.assign(out, VarType.REFERENCE, "null");
775 smapper.assign(out, VarType.INTEGER, "-1");
778 smapper.assign(out, VarType.INTEGER, "0");
781 smapper.assign(out, VarType.DOUBLE, "0");
784 smapper.assign(out, VarType.LONG, "0");
787 smapper.assign(out, VarType.FLOAT, "0");
790 smapper.assign(out, VarType.INTEGER, "1");
793 smapper.assign(out, VarType.LONG, "1");
796 smapper.assign(out, VarType.FLOAT, "1");
799 smapper.assign(out, VarType.DOUBLE, "1");
802 smapper.assign(out, VarType.INTEGER, "2");
805 smapper.assign(out, VarType.FLOAT, "2");
808 smapper.assign(out, VarType.INTEGER, "3");
811 smapper.assign(out, VarType.INTEGER, "4");
814 smapper.assign(out, VarType.INTEGER, "5");
817 int indx = readUByte(byteCodes, ++i);
818 String v = encodeConstant(indx);
819 int type = VarType.fromConstantType(jc.getTag(indx));
820 emit(smapper, out, "var @1 = @2;", smapper.pushT(type), v);
825 int indx = readUShortArg(byteCodes, i);
827 String v = encodeConstant(indx);
828 int type = VarType.fromConstantType(jc.getTag(indx));
829 if (type == VarType.LONG) {
830 final Long lv = new Long(v);
831 final int low = (int)(lv.longValue() & 0xFFFFFFFF);
832 final int hi = (int)(lv.longValue() >> 32);
833 emit(smapper, out, "var @1 = 0x@3.next32(0x@2);", smapper.pushL(),
834 Integer.toHexString(low), Integer.toHexString(hi));
836 emit(smapper, out, "var @1 = @2;", smapper.pushT(type), v);
841 emit(smapper, out, "var @3 = @2.compare64(@1);",
842 smapper.popL(), smapper.popL(), smapper.pushI());
846 emit(smapper, out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
847 smapper.popF(), smapper.popF(), smapper.pushI());
851 emit(smapper, out, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",
852 smapper.popD(), smapper.popD(), smapper.pushI());
855 i = generateIf(byteCodes, i, smapper.popA(), smapper.popA(),
856 "===", topMostLabel);
859 i = generateIf(byteCodes, i, smapper.popA(), smapper.popA(),
860 "!==", topMostLabel);
863 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
867 int indx = i + readShortArg(byteCodes, i);
868 emitIf(smapper, out, "if (@1 == 0) ",
869 smapper.popI(), i, indx, topMostLabel);
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);
908 case opc_ifnonnull: {
909 int indx = i + readShortArg(byteCodes, i);
910 emitIf(smapper, out, "if (@1 !== null) ",
911 smapper.popA(), i, indx, topMostLabel);
916 int indx = i + readShortArg(byteCodes, i);
917 emitIf(smapper, out, "if (@1 === null) ",
918 smapper.popA(), i, indx, topMostLabel);
923 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
927 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
931 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
935 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
939 i = generateIf(byteCodes, i, smapper.popI(), smapper.popI(),
943 int indx = i + readShortArg(byteCodes, i);
944 goTo(out, i, indx, topMostLabel);
948 case opc_lookupswitch: {
949 i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);
952 case opc_tableswitch: {
953 i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);
956 case opc_invokeinterface: {
957 i = invokeVirtualMethod(byteCodes, i, smapper) + 2;
960 case opc_invokevirtual:
961 i = invokeVirtualMethod(byteCodes, i, smapper);
963 case opc_invokespecial:
964 i = invokeStaticMethod(byteCodes, i, smapper, false);
966 case opc_invokestatic:
967 i = invokeStaticMethod(byteCodes, i, smapper, true);
970 int indx = readUShortArg(byteCodes, i);
971 String ci = jc.getClassName(indx);
972 emit(smapper, out, "var @1 = new @2;",
973 smapper.pushA(), accessClass(mangleClassName(ci)));
979 int atype = readUByte(byteCodes, ++i);
980 generateNewArray(atype, smapper);
982 case opc_anewarray: {
983 int type = readUShortArg(byteCodes, i);
985 generateANewArray(type, smapper);
988 case opc_multianewarray: {
989 int type = readUShortArg(byteCodes, i);
991 i = generateMultiANewArray(type, byteCodes, i, smapper);
994 case opc_arraylength:
995 emit(smapper, out, "var @2 = @1.length;",
996 smapper.popA(), smapper.pushI());
999 emit(smapper, out, "Array.at(@3, @2, @1);",
1000 smapper.popL(), smapper.popI(), smapper.popA());
1003 emit(smapper, out, "Array.at(@3, @2, @1);",
1004 smapper.popF(), smapper.popI(), smapper.popA());
1007 emit(smapper, out, "Array.at(@3, @2, @1);",
1008 smapper.popD(), smapper.popI(), smapper.popA());
1011 emit(smapper, out, "Array.at(@3, @2, @1);",
1012 smapper.popA(), smapper.popI(), smapper.popA());
1018 emit(smapper, out, "Array.at(@3, @2, @1);",
1019 smapper.popI(), smapper.popI(), smapper.popA());
1022 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1023 smapper.popI(), smapper.popA(), smapper.pushL());
1026 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1027 smapper.popI(), smapper.popA(), smapper.pushF());
1030 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1031 smapper.popI(), smapper.popA(), smapper.pushD());
1034 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1035 smapper.popI(), smapper.popA(), smapper.pushA());
1041 emit(smapper, out, "var @3 = Array.at(@2, @1);",
1042 smapper.popI(), smapper.popA(), smapper.pushI());
1050 final Variable v = smapper.get(0);
1051 emit(smapper, out, "var @1 = @2;", smapper.pushT(v.getType()), v);
1055 final Variable vi1 = smapper.get(0);
1057 if (vi1.isCategory2()) {
1058 emit(smapper, out, "var @1 = @2;",
1059 smapper.pushT(vi1.getType()), vi1);
1061 final Variable vi2 = smapper.get(1);
1062 emit(smapper, out, "var @1 = @2, @3 = @4;",
1063 smapper.pushT(vi2.getType()), vi2,
1064 smapper.pushT(vi1.getType()), vi1);
1069 final Variable vi1 = smapper.pop(out);
1070 final Variable vi2 = smapper.pop(out);
1071 final Variable vo3 = smapper.pushT(vi1.getType());
1072 final Variable vo2 = smapper.pushT(vi2.getType());
1073 final Variable vo1 = smapper.pushT(vi1.getType());
1075 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1076 vo1, vi1, vo2, vi2, vo3, vo1);
1080 final Variable vi1 = smapper.pop(out);
1081 final Variable vi2 = smapper.pop(out);
1083 if (vi1.isCategory2()) {
1084 final Variable vo3 = smapper.pushT(vi1.getType());
1085 final Variable vo2 = smapper.pushT(vi2.getType());
1086 final Variable vo1 = smapper.pushT(vi1.getType());
1088 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1089 vo1, vi1, vo2, vi2, vo3, vo1);
1091 final Variable vi3 = smapper.pop(out);
1092 final Variable vo5 = smapper.pushT(vi2.getType());
1093 final Variable vo4 = smapper.pushT(vi1.getType());
1094 final Variable vo3 = smapper.pushT(vi3.getType());
1095 final Variable vo2 = smapper.pushT(vi2.getType());
1096 final Variable vo1 = smapper.pushT(vi1.getType());
1098 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6,",
1099 vo1, vi1, vo2, vi2, vo3, vi3);
1100 emit(smapper, out, " @1 = @2, @3 = @4;",
1101 vo4, vo1, vo5, vo2);
1106 final Variable vi1 = smapper.pop(out);
1107 final Variable vi2 = smapper.pop(out);
1109 if (vi2.isCategory2()) {
1110 final Variable vo3 = smapper.pushT(vi1.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, vo1);
1117 final Variable vi3 = smapper.pop(out);
1118 final Variable vo4 = smapper.pushT(vi1.getType());
1119 final Variable vo3 = smapper.pushT(vi3.getType());
1120 final Variable vo2 = smapper.pushT(vi2.getType());
1121 final Variable vo1 = smapper.pushT(vi1.getType());
1123 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1124 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1129 final Variable vi1 = smapper.pop(out);
1130 final Variable vi2 = smapper.pop(out);
1132 if (vi1.isCategory2()) {
1133 if (vi2.isCategory2()) {
1134 final Variable vo3 = smapper.pushT(vi1.getType());
1135 final Variable vo2 = smapper.pushT(vi2.getType());
1136 final Variable vo1 = smapper.pushT(vi1.getType());
1138 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6;",
1139 vo1, vi1, vo2, vi2, vo3, vo1);
1141 final Variable vi3 = smapper.pop(out);
1142 final Variable vo4 = smapper.pushT(vi1.getType());
1143 final Variable vo3 = smapper.pushT(vi3.getType());
1144 final Variable vo2 = smapper.pushT(vi2.getType());
1145 final Variable vo1 = smapper.pushT(vi1.getType());
1147 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",
1148 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);
1151 final Variable vi3 = smapper.pop(out);
1153 if (vi3.isCategory2()) {
1154 final Variable vo5 = smapper.pushT(vi2.getType());
1155 final Variable vo4 = smapper.pushT(vi1.getType());
1156 final Variable vo3 = smapper.pushT(vi3.getType());
1157 final Variable vo2 = smapper.pushT(vi2.getType());
1158 final Variable vo1 = smapper.pushT(vi1.getType());
1160 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6,",
1161 vo1, vi1, vo2, vi2, vo3, vi3);
1162 emit(smapper, out, " @1 = @2, @3 = @4;",
1163 vo4, vo1, vo5, vo2);
1165 final Variable vi4 = smapper.pop(out);
1166 final Variable vo6 = smapper.pushT(vi2.getType());
1167 final Variable vo5 = smapper.pushT(vi1.getType());
1168 final Variable vo4 = smapper.pushT(vi4.getType());
1169 final Variable vo3 = smapper.pushT(vi3.getType());
1170 final Variable vo2 = smapper.pushT(vi2.getType());
1171 final Variable vo1 = smapper.pushT(vi1.getType());
1173 emit(smapper, out, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",
1174 vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);
1175 emit(smapper, out, " @1 = @2, @3 = @4;",
1176 vo5, vo1, vo6, vo2);
1182 final Variable vi1 = smapper.get(0);
1183 final Variable vi2 = smapper.get(1);
1185 if (vi1.getType() == vi2.getType()) {
1186 final Variable tmp = smapper.pushT(vi1.getType());
1188 emit(smapper, out, "var @1 = @2, @2 = @3, @3 = @1;",
1193 smapper.pushT(vi1.getType());
1194 smapper.pushT(vi2.getType());
1199 emit(smapper, out, "var @1 = @2;",
1200 smapper.pushI(), Integer.toString(byteCodes[++i]));
1203 emit(smapper, out, "var @1 = @2;",
1205 Integer.toString(readShortArg(byteCodes, i)));
1208 case opc_getfield: {
1209 int indx = readUShortArg(byteCodes, i);
1210 String[] fi = jc.getFieldInfoName(indx);
1211 final int type = VarType.fromFieldType(fi[2].charAt(0));
1212 final String mangleClass = mangleClassName(fi[0]);
1213 final String mangleClassAccess = accessClass(mangleClass);
1214 emit(smapper, out, "var @2 = @4(false)._@3.call(@1);",
1216 smapper.pushT(type), fi[1], mangleClassAccess
1221 case opc_putfield: {
1222 int indx = readUShortArg(byteCodes, i);
1223 String[] fi = jc.getFieldInfoName(indx);
1224 final int type = VarType.fromFieldType(fi[2].charAt(0));
1225 final String mangleClass = mangleClassName(fi[0]);
1226 final String mangleClassAccess = accessClass(mangleClass);
1227 emit(smapper, out, "@4(false)._@3.call(@2, @1);",
1229 smapper.popA(), fi[1],
1235 case opc_getstatic: {
1236 int indx = readUShortArg(byteCodes, i);
1237 String[] fi = jc.getFieldInfoName(indx);
1238 final int type = VarType.fromFieldType(fi[2].charAt(0));
1239 emit(smapper, out, "var @1 = @2(false)._@3();",
1240 smapper.pushT(type),
1241 accessClass(mangleClassName(fi[0])), fi[1]);
1243 addReference(fi[0]);
1246 case opc_putstatic: {
1247 int indx = readUShortArg(byteCodes, i);
1248 String[] fi = jc.getFieldInfoName(indx);
1249 final int type = VarType.fromFieldType(fi[2].charAt(0));
1250 emit(smapper, out, "@1(false)._@2(@3);",
1251 accessClass(mangleClassName(fi[0])), fi[1],
1252 smapper.popT(type));
1254 addReference(fi[0]);
1257 case opc_checkcast: {
1258 int indx = readUShortArg(byteCodes, i);
1259 generateCheckcast(indx, smapper);
1263 case opc_instanceof: {
1264 int indx = readUShortArg(byteCodes, i);
1265 generateInstanceOf(indx, smapper);
1270 final CharSequence v = smapper.popA();
1273 emit(smapper, out, "{ var @1 = @2; throw @2; }",
1274 smapper.pushA(), v);
1278 case opc_monitorenter: {
1279 out.append("/* monitor enter */");
1284 case opc_monitorexit: {
1285 out.append("/* monitor exit */");
1296 emit(smapper, out, "throw 'unknown bytecode @1';",
1297 Integer.toString(c));
1301 generateByteCodeComment(prev, i, byteCodes);
1305 if (previousTrap != null) {
1306 generateCatch(previousTrap, byteCodes.length, topMostLabel);
1308 out.append("\n }\n");
1309 while (openBraces-- > 0) {
1315 private int generateIf(byte[] byteCodes, int i, final CharSequence v2, final CharSequence v1, final String test, int topMostLabel) throws IOException {
1316 int indx = i + readShortArg(byteCodes, i);
1317 out.append("if (").append(v1)
1318 .append(' ').append(test).append(' ')
1319 .append(v2).append(") ");
1320 goTo(out, i, indx, topMostLabel);
1324 private int readInt4(byte[] byteCodes, int offset) {
1325 final int d = byteCodes[offset + 0] << 24;
1326 final int c = byteCodes[offset + 1] << 16;
1327 final int b = byteCodes[offset + 2] << 8;
1328 final int a = byteCodes[offset + 3];
1329 return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);
1331 private static int readUByte(byte[] byteCodes, int offset) {
1332 return byteCodes[offset] & 0xff;
1335 private static int readUShort(byte[] byteCodes, int offset) {
1336 return ((byteCodes[offset] & 0xff) << 8)
1337 | (byteCodes[offset + 1] & 0xff);
1339 private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {
1340 return readUShort(byteCodes, offsetInstruction + 1);
1343 private static int readShort(byte[] byteCodes, int offset) {
1344 int signed = byteCodes[offset];
1345 byte b0 = (byte)signed;
1346 return (b0 << 8) | (byteCodes[offset + 1] & 0xff);
1348 private static int readShortArg(byte[] byteCodes, int offsetInstruction) {
1349 return readShort(byteCodes, offsetInstruction + 1);
1352 private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {
1354 Boolean count = null;
1355 boolean array = false;
1357 int firstPos = sig.length();
1358 while (i < descriptor.length()) {
1359 char ch = descriptor.charAt(i++);
1380 if (ch == 'J' || ch == 'D') {
1386 sig.insert(firstPos, ch);
1388 returnType[0] = '[';
1389 sig.insert(firstPos, "_3");
1398 returnType[0] = 'V';
1399 sig.insert(firstPos, 'V');
1402 int next = descriptor.indexOf(';', i);
1403 String realSig = mangleSig(descriptor, i - 1, next + 1);
1408 sig.append(realSig);
1411 sig.insert(firstPos, realSig);
1413 sig.insert(firstPos, "_3");
1415 returnType[0] = 'L';
1424 throw new IllegalStateException("Invalid char: " + ch);
1429 static String mangleSig(String sig) {
1430 return mangleSig(sig, 0, sig.length());
1433 private static String mangleMethodName(String name) {
1434 StringBuilder sb = new StringBuilder(name.length() * 2);
1435 int last = name.length();
1436 for (int i = 0; i < last; i++) {
1437 final char ch = name.charAt(i);
1439 case '_': sb.append("_1"); break;
1440 default: sb.append(ch); break;
1443 return sb.toString();
1445 private static String mangleSig(String txt, int first, int last) {
1446 StringBuilder sb = new StringBuilder((last - first) * 2);
1447 for (int i = first; i < last; i++) {
1448 final char ch = txt.charAt(i);
1450 case '/': sb.append('_'); break;
1451 case '_': sb.append("_1"); break;
1452 case ';': sb.append("_2"); break;
1453 case '[': sb.append("_3"); break;
1454 default: sb.append(ch); break;
1457 return sb.toString();
1460 private static String mangleClassName(String name) {
1461 return mangleSig(name);
1464 private static String findMethodName(MethodData m, StringBuilder cnt) {
1465 StringBuilder name = new StringBuilder();
1466 if ("<init>".equals(m.getName())) { // NOI18N
1467 name.append("cons"); // NOI18N
1468 } else if ("<clinit>".equals(m.getName())) { // NOI18N
1469 name.append("class"); // NOI18N
1471 name.append(mangleMethodName(m.getName()));
1474 countArgs(m.getInternalSig(), new char[1], name, cnt);
1475 return name.toString();
1478 static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {
1479 StringBuilder name = new StringBuilder();
1480 String descr = mi[2];//mi.getDescriptor();
1482 if ("<init>".equals(nm)) { // NOI18N
1483 name.append("cons"); // NOI18N
1485 name.append(mangleMethodName(nm));
1487 countArgs(descr, returnType, name, cnt);
1488 return name.toString();
1491 private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)
1492 throws IOException {
1493 int methodIndex = readUShortArg(byteCodes, i);
1494 String[] mi = jc.getFieldInfoName(methodIndex);
1495 char[] returnType = { 'V' };
1496 StringBuilder cnt = new StringBuilder();
1497 String mn = findMethodName(mi, cnt, returnType);
1499 final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;
1500 final CharSequence[] vars = new CharSequence[numArguments];
1502 for (int j = numArguments - 1; j >= 0; --j) {
1503 vars[j] = mapper.popValue();
1506 if (returnType[0] != 'V') {
1508 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1512 final String in = mi[0];
1513 out.append(accessClass(mangleClassName(in)));
1514 out.append("(false).");
1515 if (mn.startsWith("cons_")) {
1516 out.append("constructor.");
1522 out.append(".call(");
1524 if (numArguments > 0) {
1525 out.append(vars[0]);
1526 for (int j = 1; j < numArguments; ++j) {
1528 out.append(vars[j]);
1536 private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)
1537 throws IOException {
1538 int methodIndex = readUShortArg(byteCodes, i);
1539 String[] mi = jc.getFieldInfoName(methodIndex);
1540 char[] returnType = { 'V' };
1541 StringBuilder cnt = new StringBuilder();
1542 String mn = findMethodName(mi, cnt, returnType);
1544 final int numArguments = cnt.length() + 1;
1545 final Variable[] vars = new Variable[numArguments];
1547 for (int j = numArguments - 1; j >= 0; --j) {
1548 vars[j] = mapper.pop(out);
1551 if (returnType[0] != 'V') {
1553 .append(mapper.pushT(VarType.fromFieldType(returnType[0])))
1557 out.append(vars[0]).append('.');
1561 for (int j = 1; j < numArguments; ++j) {
1563 out.append(vars[j]);
1571 private void addReference(String cn) throws IOException {
1572 if (requireReference(cn)) {
1573 debug(" /* needs " + cn + " */");
1577 private void outType(String d, StringBuilder out) {
1579 while (d.charAt(0) == '[') {
1583 if (d.charAt(0) == 'L') {
1584 assert d.charAt(d.length() - 1) == ';';
1585 out.append(d.replace('/', '_').substring(0, d.length() - 1));
1591 private String encodeConstant(int entryIndex) throws IOException {
1592 String[] classRef = { null };
1593 String s = jc.stringValue(entryIndex, classRef);
1594 if (classRef[0] != null) {
1595 if (classRef[0].startsWith("[")) {
1596 s = accessClass("java_lang_Class") + "(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('" + classRef[0] + "');";
1598 addReference(classRef[0]);
1599 s = accessClass(mangleClassName(s)) + "(false).constructor.$class";
1605 private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {
1606 byte[] arr = m.findAnnotationData(true);
1610 final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";
1611 final String htmlType = "Lnet/java/html/js/JavaScriptBody;";
1612 class P extends AnnotationParser {
1618 String[] args = new String[30];
1624 protected void visitAttr(String type, String attr, String at, String value) {
1625 if (type.equals(jvmType)) {
1626 if ("body".equals(attr)) {
1628 } else if ("args".equals(attr)) {
1629 args[cnt++] = value;
1631 throw new IllegalArgumentException(attr);
1634 if (type.equals(htmlType)) {
1636 if ("body".equals(attr)) {
1638 } else if ("args".equals(attr)) {
1639 args[cnt++] = value;
1640 } else if ("javacall".equals(attr)) {
1641 javacall = "1".equals(value);
1643 throw new IllegalArgumentException(attr);
1650 if (p.body == null) {
1653 StringBuilder cnt = new StringBuilder();
1654 final String mn = findMethodName(m, cnt);
1655 out.append(destObject).append(".").append(mn);
1656 out.append(" = function(");
1659 StringBuilder toValue = new StringBuilder();
1660 for (int i = 0; i < cnt.length(); i++) {
1662 space = outputArg(out, p.args, index);
1663 if (p.html4j && space.length() > 0) {
1664 toValue.append("\n ").append(p.args[index]).append(" = vm.org_apidesign_bck2brwsr_emul_lang_System(false).toJS(").
1665 append(p.args[index]).append(");");
1669 out.append(") {").append("\n");
1670 out.append(toValue.toString());
1672 int lastSlash = jc.getClassName().lastIndexOf('/');
1673 final String pkg = jc.getClassName().substring(0, lastSlash);
1674 out.append(mangleCallbacks(pkg, p.body));
1675 requireReference(pkg + "/$JsCallbacks$");
1679 out.append("\n}\n");
1683 private static CharSequence mangleCallbacks(String pkgName, String body) {
1684 StringBuilder sb = new StringBuilder();
1687 int next = body.indexOf(".@", pos);
1689 sb.append(body.substring(pos));
1690 body = sb.toString();
1695 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {
1700 String refId = body.substring(ident, next);
1702 sb.append(body.substring(pos, ident));
1704 int sigBeg = body.indexOf('(', next);
1705 int sigEnd = body.indexOf(')', sigBeg);
1706 int colon4 = body.indexOf("::", next);
1707 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1708 throw new IllegalStateException("Malformed body " + body);
1710 String fqn = body.substring(next + 2, colon4);
1711 String method = body.substring(colon4 + 2, sigBeg);
1712 String params = body.substring(sigBeg, sigEnd + 1);
1714 int paramBeg = body.indexOf('(', sigEnd + 1);
1716 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1717 sb.append(mangleJsCallbacks(fqn, method, params, false));
1718 sb.append("(").append(refId);
1719 if (body.charAt(paramBeg + 1) != ')') {
1727 int next = body.indexOf("@", pos);
1732 sb.append(body.substring(pos));
1736 sb = new StringBuilder();
1739 sb.append(body.substring(pos, next));
1741 int sigBeg = body.indexOf('(', next);
1742 int sigEnd = body.indexOf(')', sigBeg);
1743 int colon4 = body.indexOf("::", next);
1744 if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {
1745 throw new IllegalStateException("Malformed body " + body);
1747 String fqn = body.substring(next + 1, colon4);
1748 String method = body.substring(colon4 + 2, sigBeg);
1749 String params = body.substring(sigBeg, sigEnd + 1);
1751 int paramBeg = body.indexOf('(', sigEnd + 1);
1753 sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");
1754 sb.append(mangleJsCallbacks(fqn, method, params, true));
1760 static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {
1761 if (params.startsWith("(")) {
1762 params = params.substring(1);
1764 if (params.endsWith(")")) {
1765 params = params.substring(0, params.length() - 1);
1767 StringBuilder sb = new StringBuilder();
1768 final String fqnu = fqn.replace('.', '_');
1769 final String rfqn = mangleClassName(fqnu);
1770 final String rm = mangleMethodName(method);
1773 StringBuilder pb = new StringBuilder();
1774 int len = params.length();
1776 while (indx < len) {
1777 char ch = params.charAt(indx);
1778 if (ch == '[' || ch == 'L') {
1779 pb.append("Ljava/lang/Object;");
1780 indx = params.indexOf(';', indx) + 1;
1786 srp = mangleSig(pb.toString());
1788 final String rp = mangleSig(params);
1789 final String mrp = mangleMethodName(rp);
1790 sb.append(rfqn).append("$").append(rm).
1791 append('$').append(mrp).append("__Ljava_lang_Object_2");
1793 sb.append('L').append(fqnu).append("_2");
1796 return sb.toString();
1799 private static String className(ClassData jc) {
1800 //return jc.getName().getInternalName().replace('/', '_');
1801 return mangleClassName(jc.getClassName());
1804 private static String[] findAnnotation(
1805 byte[] arr, ClassData cd, final String className,
1806 final String... attrNames
1807 ) throws IOException {
1811 final String[] values = new String[attrNames.length];
1812 final boolean[] found = { false };
1813 final String jvmType = "L" + className.replace('.', '/') + ";";
1814 AnnotationParser ap = new AnnotationParser(false, true) {
1816 protected void visitAttr(String type, String attr, String at, String value) {
1817 if (type.equals(jvmType)) {
1819 for (int i = 0; i < attrNames.length; i++) {
1820 if (attrNames[i].equals(attr)) {
1829 return found[0] ? values : null;
1832 private CharSequence initField(FieldData v) {
1833 final String is = v.getInternalSig();
1834 if (is.length() == 1) {
1835 switch (is.charAt(0)) {
1841 case 'I': return " = 0;";
1843 case 'D': return " = 0.0;";
1845 throw new IllegalStateException(is);
1851 private void generateAnno(ClassData cd, final Appendable out, byte[] data) throws IOException {
1852 AnnotationParser ap = new AnnotationParser(true, false) {
1853 int[] cnt = new int[32];
1857 protected void visitAnnotationStart(String attrType, boolean top) throws IOException {
1858 final String slashType = attrType.substring(1, attrType.length() - 1);
1859 requireReference(slashType);
1861 if (cnt[depth]++ > 0) {
1865 out.append('"').append(attrType).append("\" : ");
1872 protected void visitAnnotationEnd(String type, boolean top) throws IOException {
1873 out.append("\n}\n");
1878 protected void visitValueStart(String attrName, char type) throws IOException {
1879 if (cnt[depth]++ > 0) {
1883 if (attrName != null) {
1884 out.append(attrName).append(" : ");
1892 protected void visitValueEnd(String attrName, char type) throws IOException {
1900 protected void visitAttr(String type, String attr, String attrType, String value)
1901 throws IOException {
1902 if (attr == null && value == null) {
1909 protected void visitEnumAttr(String type, String attr, String attrType, String value)
1910 throws IOException {
1911 final String slashType = attrType.substring(1, attrType.length() - 1);
1912 requireReference(slashType);
1914 out.append(accessClass(mangleClassName(slashType)))
1915 .append("(false).constructor.fld_").append(value);
1921 private static String outputArg(Appendable out, String[] args, int indx) throws IOException {
1922 final String name = args[indx];
1926 if (name.contains(",")) {
1927 throw new IOException("Wrong parameter with ',': " + name);
1935 final Appendable out,
1936 final String format, final CharSequence... params
1937 ) throws IOException {
1939 emitImpl(out, format, params);
1941 static void emitImpl(final Appendable out,
1942 final String format,
1943 final CharSequence... params) throws IOException {
1944 final int length = format.length();
1947 int paramOffset = format.indexOf('@');
1948 while ((paramOffset != -1) && (paramOffset < (length - 1))) {
1949 final char paramChar = format.charAt(paramOffset + 1);
1950 if ((paramChar >= '1') && (paramChar <= '9')) {
1951 final int paramIndex = paramChar - '0' - 1;
1953 out.append(format, processed, paramOffset);
1954 out.append(params[paramIndex]);
1957 processed = paramOffset + 1;
1960 paramOffset = format.indexOf('@', paramOffset + 1);
1963 out.append(format, processed, length);
1966 private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {
1967 out.append("} catch (e) {\n");
1969 for (TrapData e : traps) {
1973 if (e.catch_cpx != 0) { //not finally
1974 final String classInternalName = jc.getClassName(e.catch_cpx);
1975 addReference(classInternalName);
1976 out.append("e = vm.java_lang_Throwable(false).bck2BrwsrCnvrt(e);");
1977 out.append("if (e.$instOf_" + classInternalName.replace('/', '_') + ") {");
1978 out.append("var stA0 = e;");
1979 goTo(out, current, e.handler_pc, topMostLabel);
1982 finallyPC = e.handler_pc;
1985 if (finallyPC == -1) {
1986 out.append("throw e;");
1988 out.append("var stA0 = e;");
1989 goTo(out, current, finallyPC, topMostLabel);
1994 private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {
1997 out.append("{ gt = 0; continue X_" + to + "; }");
1999 out.append("{ gt = " + to + "; continue X_0; }");
2002 out.append("{ gt = " + to + "; break IF; }");
2006 private static void emitIf(
2008 Appendable out, String pattern,
2010 int current, int to, int canBack
2011 ) throws IOException {
2013 emitImpl(out, pattern, param);
2014 goTo(out, current, to, canBack);
2017 private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {
2020 case 4: jvmType = "[Z"; break;
2021 case 5: jvmType = "[C"; break;
2022 case 6: jvmType = "[F"; break;
2023 case 7: jvmType = "[D"; break;
2024 case 8: jvmType = "[B"; break;
2025 case 9: jvmType = "[S"; break;
2026 case 10: jvmType = "[I"; break;
2027 case 11: jvmType = "[J"; break;
2028 default: throw new IllegalStateException("Array type: " + atype);
2030 emit(smapper, out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(true, '@3', @1);",
2031 smapper.popI(), smapper.pushA(), jvmType);
2034 private void generateANewArray(int type, final StackMapper smapper) throws IOException {
2035 String typeName = jc.getClassName(type);
2036 if (typeName.startsWith("[")) {
2037 typeName = "[" + typeName;
2039 typeName = "[L" + typeName + ";";
2041 emit(smapper, out, "var @2 = Array.prototype.newArray__Ljava_lang_Object_2ZLjava_lang_String_2I(false, '@3', @1);",
2042 smapper.popI(), smapper.pushA(), typeName);
2045 private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {
2046 String typeName = jc.getClassName(type);
2047 int dim = readUByte(byteCodes, ++i);
2048 StringBuilder dims = new StringBuilder();
2050 for (int d = 0; d < dim; d++) {
2052 dims.insert(1, ",");
2054 dims.insert(1, smapper.popI());
2057 emit(smapper, out, "var @2 = Array.prototype.multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3II('@3', @1, 0);",
2058 dims.toString(), smapper.pushA(), typeName);
2062 private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2063 int table = i / 4 * 4 + 4;
2064 int dflt = i + readInt4(byteCodes, table);
2066 int low = readInt4(byteCodes, table);
2068 int high = readInt4(byteCodes, table);
2070 out.append("switch (").append(smapper.popI()).append(") {\n");
2071 while (low <= high) {
2072 int offset = i + readInt4(byteCodes, table);
2074 out.append(" case " + low).append(":"); goTo(out, i, offset, topMostLabel); out.append('\n');
2077 out.append(" default: ");
2078 goTo(out, i, dflt, topMostLabel);
2084 private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {
2085 int table = i / 4 * 4 + 4;
2086 int dflt = i + readInt4(byteCodes, table);
2088 int n = readInt4(byteCodes, table);
2090 out.append("switch (").append(smapper.popI()).append(") {\n");
2092 int cnstnt = readInt4(byteCodes, table);
2094 int offset = i + readInt4(byteCodes, table);
2096 out.append(" case " + cnstnt).append(": "); goTo(out, i, offset, topMostLabel); out.append('\n');
2098 out.append(" default: ");
2099 goTo(out, i, dflt, topMostLabel);
2105 private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {
2106 final String type = jc.getClassName(indx);
2107 if (!type.startsWith("[")) {
2108 emit(smapper, out, "var @2 = @1 != null && @1.$instOf_@3 ? 1 : 0;",
2109 smapper.popA(), smapper.pushI(),
2110 type.replace('/', '_'));
2112 emit(smapper, out, "var @2 = vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2('@3').isInstance__ZLjava_lang_Object_2(@1);",
2113 smapper.popA(), smapper.pushI(),
2119 private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {
2120 final String type = jc.getClassName(indx);
2121 if (!type.startsWith("[")) {
2123 "if (@1 !== null && !@1.$instOf_@2) throw vm.java_lang_ClassCastException(true);",
2124 smapper.getA(0), type.replace('/', '_'));
2126 emit(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);",
2127 smapper.getA(0), type
2132 private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {
2133 for (int j = prev; j <= i; j++) {
2135 final int cc = readUByte(byteCodes, j);
2136 out.append(Integer.toString(cc));