hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@ff4983098f3f

     1 /**

     2  * Back 2 Browser Bytecode Translator

     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

     4  *

     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.

     8  *

     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.

    13  *

    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.

    17  */

    18 package org.apidesign.vm4brwsr;

    20 import java.io.IOException;

    21 import java.io.InputStream;

    22 import org.apidesign.bck2brwsr.core.JavaScriptBody;

    23 import static org.apidesign.vm4brwsr.ByteCodeParser.*;

    25 /** Translator of the code inside class files to JavaScript.

    26  *

    27  * @author Jaroslav Tulach <jtulach@netbeans.org>

    28  */

    29 abstract class ByteCodeToJavaScript implements Appendable {

    30     private ClassData jc;

    31     private final Appendable out;

    32     private boolean outChanged;

    33     private boolean callbacks;

    35     protected ByteCodeToJavaScript(Appendable out) {

    36         this.out = out;

    37     }

    39     @Override

    40     public final Appendable append(CharSequence csq) throws IOException {

    41         out.append(csq);

    42         outChanged = true;

    43         return this;

    44     }

    46     @Override

    47     public final Appendable append(CharSequence csq, int start, int end) throws IOException {

    48         out.append(csq, start, end);

    49         outChanged = true;

    50         return this;

    51     }

    53     @Override

    54     public final Appendable append(char c) throws IOException {

    55         out.append(c);

    56         outChanged = true;

    57         return this;

    58     }

    60     /* Collects additional required resources.

    61      *

    62      * @param internalClassName classes that were referenced and should be loaded in order the

    63      *   generated JavaScript code works properly. The names are in internal

    64      *   JVM form so String is <code>java/lang/String</code>.

    65      */

    66     protected abstract boolean requireReference(String internalClassName);

    68     /*

    69      * @param resourcePath name of resources to read

    70      */

    71     protected abstract void requireScript(String resourcePath) throws IOException;

    73     protected abstract void requireResource(String resourcePath) throws IOException;

    75     /** Allows subclasses to redefine what field a function representing a

    76      * class gets assigned. By default it returns the suggested name followed

    77      * by <code>" = "</code>;

    78      *

    79      * @param className suggested name of the class

    80      */

    81     /* protected */ String assignClass(String className) {

    82         return className + " = ";

    83     }

    84     /* protected */ String accessClass(String classOperation) {

    85         return classOperation;

    86     }

    88     protected String accessField(String object, String mangledName,

    89                                  String[] fieldInfoName) throws IOException {

    90         return object + "." + mangledName;

    91     }

    93     protected String accessStaticMethod(

    94                              String object,

    95                              String mangledName,

    96                              String[] fieldInfoName) throws IOException {

    97         return object + "." + mangledName;

    98     }

   100     protected String accessVirtualMethod(

   101             String object,

   102             String mangledName,

   103             String[] fieldInfoName,

   104             int params

   105     ) throws IOException {

   106         return object + "." + mangledName + '(';

   107     }

   109     protected void declaredClass(ClassData classData, String mangledName)

   110             throws IOException {

   111     }

   113     protected void declaredField(FieldData fieldData,

   114                                  String destObject,

   115                                  String mangledName) throws IOException {

   116     }

   118     protected void declaredMethod(MethodData methodData,

   119                                   String destObject,

   120                                   String mangledName) throws IOException {

   121     }

   123     /** Prints out a debug message.

   124      *

   125      * @param msg the message

   126      * @return true if the message has been printed

   127      * @throws IOException

   128      */

   129     boolean debug(String msg) throws IOException {

   130         append(msg);

   131         return true;

   132     }

   134     /**

   135      * Converts a given class file to a JavaScript version.

   136      *

   137      * @param classFile input stream with code of the .class file

   138      * @return the initialization code for this class, if any. Otherwise <code>null</code>

   139      *

   140      * @throws IOException if something goes wrong during read or write or translating

   141      */

   143     public String compile(InputStream classFile) throws IOException {

   144         return compile(new ClassData(classFile));

   145     }

   147     protected String compile(ClassData classData) throws IOException {

   148         this.jc = classData;

   149         final String cn = this.jc.getClassName();

   150         this.callbacks = cn.endsWith("/$JsCallbacks$");

   151         if (jc.getMajor_version() < 50 && !cn.endsWith("/package-info")) {

   152             throw new IOException("Can't compile " + cn + ". Class file version " + jc.getMajor_version() + "."

   153                 + jc.getMinor_version() + " - recompile with -target 1.6 (at least)."

   154             );

   155         }

   156         byte[] arrData = jc.findAnnotationData(true);

   157         {

   158             String[] arr = findAnnotation(arrData, jc,

   159                 "org.apidesign.bck2brwsr.core.ExtraJavaScript",

   160                 "resource", "processByteCode"

   161             );

   162             if (arr != null) {

   163                 if (!arr[0].isEmpty()) {

   164                     requireScript(arr[0]);

   165                 }

   166                 if ("0".equals(arr[1])) {

   167                     return null;

   168                 }

   169             }

   170         }

   171         final String jsResource;

   172         {

   173             String[] arr = findAnnotation(arrData, jc,

   174                 "net.java.html.js.JavaScriptResource",

   175                 "value"

   176             );

   177             if (arr != null) {

   178                 if (arr[0].startsWith("/")) {

   179                     jsResource = arr[0];

   180                 } else {

   181                     int last = cn.lastIndexOf('/');

   182                     jsResource = cn.substring(0, last + 1).replace('.', '/') + arr[0];

   183                 }

   184             } else {

   185                 jsResource = null;

   186             }

   187         }

   188         String[] proto = findAnnotation(arrData, jc,

   189             "org.apidesign.bck2brwsr.core.JavaScriptPrototype",

   190             "container", "prototype"

   191         );

   192         StringArray toInitilize = new StringArray();

   193         final String className = className(jc);

   194         append("\n\n").append(assignClass(className));

   195         append("function ").append(className).append("() {");

   196         append("\n  var m;");

   197         append("\n  var CLS = ").append(className).append(';');

   198         append("\n  if (!CLS.$class) {");

   199         if (proto == null) {

   200             String sc = jc.getSuperClassName(); // with _

   201             append("\n    var pp = ").

   202                 append(accessClass(mangleClassName(sc))).append("(true);");

   203             append("\n    var p = CLS.prototype = pp;");

   204             append("\n    var c = p;");

   205             append("\n    var sprcls = pp.constructor.$class;");

   206         } else {

   207             append("\n    var p = CLS.prototype = ").append(proto[1]).append(";");

   208             if (proto[0] == null) {

   209                 proto[0] = "p";

   210             }

   211             append("\n    var c = ").append(proto[0]).append(";");

   212             append("\n    var sprcls = null;");

   213         }

   214         for (FieldData v : jc.getFields()) {

   215             if (v.isStatic()) {

   216                 if ((v.access & ACC_FINAL) != 0 && v.hasConstantValue()) {

   217                     if (v.getInternalSig().length() == 1 || v.getInternalSig().equals("Ljava/lang/String;")) {

   218                         continue;

   219                     }

   220                 }

   221                 append("\n  CLS.fld_").append(v.getName()).append(initField(v));

   222                 append("\n  m = c._").append(v.getName()).append(" = function (v) {")

   223                    .append("  if (arguments.length == 1) CLS.fld_").append(v.getName())

   224                    .append(" = v; return CLS.fld_").

   225                     append(v.getName()).append("; };");

   226             } else {

   227                 append("\n  m = c._").append(v.getName()).append(" = function (v) {")

   228                    .append("  if (arguments.length == 1) this.fld_").

   229                     append(className).append('_').append(v.getName())

   230                    .append(" = v; return this.fld_").

   231                     append(className).append('_').append(v.getName())

   232                    .append("; };");

   233             }

   235             declaredField(v, "c", "_" + v.getName());

   236         }

   237         for (MethodData m : jc.getMethods()) {

   238             byte[] onlyArr = m.findAnnotationData(true);

   239             if (javaScriptOnly(onlyArr)) continue;

   240             String destObject;

   241             String mn;

   242             append("\n    ");

   243             if (m.isStatic()) {

   244                 destObject = "c";

   245                 mn = generateStaticMethod(destObject, m, toInitilize);

   246             } else {

   247                 if (m.isConstructor()) {

   248                     destObject = "CLS";

   249                     mn = generateInstanceMethod(destObject, m);

   250                 } else {

   251                     destObject = "c";

   252                     mn = generateInstanceMethod(destObject, m);

   253                 }

   254             }

   255             declaredMethod(m, destObject, mn);

   256             byte[] runAnno = m.findAnnotationData(false);

   257             if (runAnno != null) {

   258                 append("\n    m.anno = {");

   259                 generateAnno(jc, runAnno);

   260                 append("\n    };");

   261             }

   262             append("\n    m.access = " + m.getAccess()).append(";");

   263             append("\n    m.cls = CLS;");

   264         }

   265         append("\n    c.constructor = CLS;");

   266         append("\n    function ").append(className).append("fillInstOf(x) {");

   267         String instOfName = "$instOf_" + className;

   268         append("\n        Object.defineProperty(x, '").append(instOfName).append("', { value : true });");

   269         if (jc.isInterface()) {

   270             for (MethodData m : jc.getMethods()) {

   271                 if ((m.getAccess() & ACC_ABSTRACT) == 0

   272                         && (m.getAccess() & ACC_STATIC) == 0

   273                         && (m.getAccess() & ACC_PRIVATE) == 0) {

   274                     final String mn = findMethodName(m, new StringBuilder());

   275                     append("\n        try {");

   276                     append("\n          if (!x['").append(mn).append("']) Object.defineProperty(x, '").append(mn).append("', { value : c['").append(mn).append("']});");

   277                     append("\n        } catch (ignore) {");

   278                     append("\n        }");

   279                 }

   280             }

   281         }

   282         for (String superInterface : jc.getSuperInterfaces()) {

   283             String intrfc = superInterface.replace('/', '_');

   284             append("\n      vm.").append(intrfc).append("(false)['fillInstOf'](x);");

   285             requireReference(superInterface);

   286         }

   287         append("\n    }");

   288         append("\n    try {");

   289         append("\n      Object.defineProperty(c, 'fillInstOf', { value: ").append(className).append("fillInstOf });");

   290         append("\n      ").append(className).append("fillInstOf(c);");

   291         append("\n    } catch (ignore) {");

   292         append("\n    }");

   293 //        obfuscationDelegate.exportJSProperty(this, "c", instOfName);

   294         append("\n    CLS.$class = 'temp';");

   295         append("\n    CLS.$class = ");

   296         append(accessClass("java_lang_Class(true);"));

   297         append("\n    CLS.$class.jvmName = '").append(cn).append("';");

   298         append("\n    CLS.$class.superclass = sprcls;");

   299         append("\n    CLS.$class.interfaces = function() { return [");

   300         {

   301             boolean first = true;

   302             for (String intrfc : jc.getSuperInterfaces()) {

   303                 if (!first) {

   304                     append(",");

   305                 }

   306                 requireReference(intrfc);

   307                 String mangledIface = mangleClassName(intrfc);

   308                 append("\n        ");

   309                 append(accessClass(mangledIface)).append("(false).constructor.$class");

   310                 first = false;

   311             }

   312         }

   313         append("\n    ]; };");

   314         append("\n    CLS.$class.access = ").append(jc.getAccessFlags()+";");

   315         append("\n    CLS.$class.cnstr = CLS;");

   316         byte[] classAnno = jc.findAnnotationData(false);

   317         if (classAnno != null) {

   318             append("\n    CLS.$class.anno = {");

   319             generateAnno(jc, classAnno);

   320             append("\n    };");

   321         }

   322         for (String init : toInitilize.toArray()) {

   323             append("\n    ").append(init).append("();");

   324         }

   326         if (jsResource != null) {

   327             requireResource(jsResource);

   328         }

   330         append("\n  }");

   331         append("\n  if (arguments.length === 0) {");

   332         append("\n    if (!(this instanceof CLS)) {");

   333         append("\n      return new CLS();");

   334         append("\n    }");

   335         for (FieldData v : jc.getFields()) {

   336             byte[] onlyArr = v.findAnnotationData(true);

   337             if (javaScriptOnly(onlyArr)) continue;

   338             if (!v.isStatic()) {

   339                 append("\n    this.fld_").

   340                     append(className).append('_').

   341                     append(v.getName()).append(initField(v));

   342             }

   343         }

   344         append("\n    return this;");

   345         append("\n  }");

   346         append("\n  return arguments[0] ? new CLS() : CLS.prototype;");

   347         append("\n};");

   349         declaredClass(jc, className);

   351 //        StringBuilder sb = new StringBuilder();

   352 //        for (String init : toInitilize.toArray()) {

   353 //            sb.append("\n").append(init).append("();");

   354 //        }

   355         return "";

   356     }

   358     private boolean javaScriptOnly(byte[] anno) throws IOException {

   359         String[] only = findAnnotation(anno, jc,

   360             "org.apidesign.bck2brwsr.core.JavaScriptOnly",

   361             "name", "value"

   362         );

   363         if (only != null) {

   364             if (only[0] != null && only[1] != null) {

   365                 append("\n    p.").append(only[0]).append(" = ")

   366                     .append(only[1]).append(";");

   367             }

   368             if (ExportedSymbols.isMarkedAsExported(anno, jc)) {

   369                 append("\n    p['").append(only[0]).append("'] = p.")

   370                     .append(only[0]).append(";");

   371             }

   372             return true;

   373         }

   374         return false;

   375     }

   376     private String generateStaticMethod(String destObject, MethodData m, StringArray toInitilize) throws IOException {

   377         String jsb = javaScriptBody(destObject, m, true);

   378         if (jsb != null) {

   379             return jsb;

   380         }

   381         final String mn = findMethodName(m, new StringBuilder());

   382         boolean defineProp = generateMethod(destObject, mn, m);

   383         if (mn.equals("class__V")) {

   384             if (defineProp) {

   385                 toInitilize.add(accessClass(className(jc)) + "(false)['" + mn + "']");

   386             } else {

   387                 toInitilize.add(accessClass(className(jc)) + "(false)." + mn);

   388             }

   389         }

   390         return mn;

   391     }

   393     private String generateInstanceMethod(String destObject, MethodData m) throws IOException {

   394         String jsb = javaScriptBody(destObject, m, false);

   395         if (jsb != null) {

   396             return jsb;

   397         }

   398         final String mn = findMethodName(m, new StringBuilder());

   399         generateMethod(destObject, mn, m);

   400         return mn;

   401     }

   403     private boolean generateMethod(String destObject, String name, MethodData m)

   404             throws IOException {

   405         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   406         TrapDataIterator trap = m.getTrapDataIterator();

   407         final LocalsMapper lmapper =

   408                 new LocalsMapper(stackMapIterator.getArguments());

   410         boolean defineProp =

   411             "java/lang/Object".equals(jc.getClassName()) ||

   412             "java/lang/reflect/Array".equals(jc.getClassName());

   414         if (defineProp) {

   415             append("Object.defineProperty(").append(destObject).

   416             append(", '").append(name).append("', { configurable: true, writable: true, value: m = function(");

   417         } else {

   418             append("m = ").append(destObject).append(".").append(name).append(" = function(");

   419         }

   420         lmapper.outputArguments(this, m.isStatic());

   421         append(") {").append("\n");

   423         final byte[] byteCodes = m.getCode();

   424         if (byteCodes == null) {

   425             append("  throw 'no code found for ")

   426                .append(jc.getClassName()).append('.')

   427                .append(m.getName()).append("';\n");

   428             if (defineProp) {

   429                 append("}});");

   430             } else {

   431                 append("};");

   432             }

   433             return defineProp;

   434         }

   436         final StackMapper smapper = new StackMapper();

   438         if (!m.isStatic()) {

   439             append("  var ").append(" lcA0 = this;\n");

   440         }

   442         int lastStackFrame;

   443         TrapData[] previousTrap = null;

   444         boolean wide = false;

   445         boolean didBranches;

   446         if (stackMapIterator.isEmpty()) {

   447             didBranches = false;

   448             lastStackFrame = 0;

   449         } else {

   450             didBranches = true;

   451             lastStackFrame = -1;

   452             append("\n  var gt = 0;\n");

   453         }

   455         int openBraces = 0;

   456         int topMostLabel = 0;

   457         for (int i = 0; i < byteCodes.length; i++) {

   458             int prev = i;

   459             outChanged = false;

   460             stackMapIterator.advanceTo(i);

   461             boolean changeInCatch = trap.advanceTo(i);

   462             if (changeInCatch || lastStackFrame != stackMapIterator.getFrameIndex()) {

   463                 if (previousTrap != null) {

   464                     generateCatch(previousTrap, i, topMostLabel);

   465                     previousTrap = null;

   466                 }

   467             }

   468             if (lastStackFrame != stackMapIterator.getFrameIndex()) {

   469                 smapper.flush(this);

   470                 if (i != 0) {

   471                     append("    }\n");

   472                 }

   473                 if (openBraces > 64) {

   474                     for (int c = 0; c < 64; c++) {

   475                         append("break;}\n");

   476                     }

   477                     openBraces = 1;

   478                     topMostLabel = i;

   479                 }

   481                 lastStackFrame = stackMapIterator.getFrameIndex();

   482                 lmapper.syncWithFrameLocals(stackMapIterator.getFrameLocals());

   483                 smapper.syncWithFrameStack(stackMapIterator.getFrameStack());

   484                 append("    X_" + i).append(": for (;;) { IF: if (gt <= " + i + ") {\n");

   485                 openBraces++;

   486                 changeInCatch = true;

   487             } else {

   488                 debug("    /* " + i + " */ ");

   489             }

   490             if (changeInCatch && trap.useTry()) {

   491                 append("try {");

   492                 previousTrap = trap.current();

   493             }

   494             final int c = readUByte(byteCodes, i);

   495             switch (c) {

   496                 case opc_aload_0:

   497                     smapper.assign(this, VarType.REFERENCE, lmapper.getA(0));

   498                     break;

   499                 case opc_iload_0:

   500                     smapper.assign(this, VarType.INTEGER, lmapper.getI(0));

   501                     break;

   502                 case opc_lload_0:

   503                     smapper.assign(this, VarType.LONG, lmapper.getL(0));

   504                     break;

   505                 case opc_fload_0:

   506                     smapper.assign(this, VarType.FLOAT, lmapper.getF(0));

   507                     break;

   508                 case opc_dload_0:

   509                     smapper.assign(this, VarType.DOUBLE, lmapper.getD(0));

   510                     break;

   511                 case opc_aload_1:

   512                     smapper.assign(this, VarType.REFERENCE, lmapper.getA(1));

   513                     break;

   514                 case opc_iload_1:

   515                     smapper.assign(this, VarType.INTEGER, lmapper.getI(1));

   516                     break;

   517                 case opc_lload_1:

   518                     smapper.assign(this, VarType.LONG, lmapper.getL(1));

   519                     break;

   520                 case opc_fload_1:

   521                     smapper.assign(this, VarType.FLOAT, lmapper.getF(1));

   522                     break;

   523                 case opc_dload_1:

   524                     smapper.assign(this, VarType.DOUBLE, lmapper.getD(1));

   525                     break;

   526                 case opc_aload_2:

   527                     smapper.assign(this, VarType.REFERENCE, lmapper.getA(2));

   528                     break;

   529                 case opc_iload_2:

   530                     smapper.assign(this, VarType.INTEGER, lmapper.getI(2));

   531                     break;

   532                 case opc_lload_2:

   533                     smapper.assign(this, VarType.LONG, lmapper.getL(2));

   534                     break;

   535                 case opc_fload_2:

   536                     smapper.assign(this, VarType.FLOAT, lmapper.getF(2));

   537                     break;

   538                 case opc_dload_2:

   539                     smapper.assign(this, VarType.DOUBLE, lmapper.getD(2));

   540                     break;

   541                 case opc_aload_3:

   542                     smapper.assign(this, VarType.REFERENCE, lmapper.getA(3));

   543                     break;

   544                 case opc_iload_3:

   545                     smapper.assign(this, VarType.INTEGER, lmapper.getI(3));

   546                     break;

   547                 case opc_lload_3:

   548                     smapper.assign(this, VarType.LONG, lmapper.getL(3));

   549                     break;

   550                 case opc_fload_3:

   551                     smapper.assign(this, VarType.FLOAT, lmapper.getF(3));

   552                     break;

   553                 case opc_dload_3:

   554                     smapper.assign(this, VarType.DOUBLE, lmapper.getD(3));

   555                     break;

   556                 case opc_iload: {

   557                     ++i;

   558                     final int indx = wide ? readUShort(byteCodes, i++)

   559                                           : readUByte(byteCodes, i);

   560                     wide = false;

   561                     smapper.assign(this, VarType.INTEGER, lmapper.getI(indx));

   562                     break;

   563                 }

   564                 case opc_lload: {

   565                     ++i;

   566                     final int indx = wide ? readUShort(byteCodes, i++)

   567                                           : readUByte(byteCodes, i);

   568                     wide = false;

   569                     smapper.assign(this, VarType.LONG, lmapper.getL(indx));

   570                     break;

   571                 }

   572                 case opc_fload: {

   573                     ++i;

   574                     final int indx = wide ? readUShort(byteCodes, i++)

   575                                           : readUByte(byteCodes, i);

   576                     wide = false;

   577                     smapper.assign(this, VarType.FLOAT, lmapper.getF(indx));

   578                     break;

   579                 }

   580                 case opc_dload: {

   581                     ++i;

   582                     final int indx = wide ? readUShort(byteCodes, i++)

   583                                           : readUByte(byteCodes, i);

   584                     wide = false;

   585                     smapper.assign(this, VarType.DOUBLE, lmapper.getD(indx));

   586                     break;

   587                 }

   588                 case opc_aload: {

   589                     ++i;

   590                     final int indx = wide ? readUShort(byteCodes, i++)

   591                                           : readUByte(byteCodes, i);

   592                     wide = false;

   593                     smapper.assign(this, VarType.REFERENCE, lmapper.getA(indx));

   594                     break;

   595                 }

   596                 case opc_istore: {

   597                     ++i;

   598                     final int indx = wide ? readUShort(byteCodes, i++)

   599                                           : readUByte(byteCodes, i);

   600                     wide = false;

   601                     emit(smapper, this, "var @1 = @2;",

   602                          lmapper.setI(indx), smapper.popI());

   603                     break;

   604                 }

   605                 case opc_lstore: {

   606                     ++i;

   607                     final int indx = wide ? readUShort(byteCodes, i++)

   608                                           : readUByte(byteCodes, i);

   609                     wide = false;

   610                     emit(smapper, this, "var @1 = @2;",

   611                          lmapper.setL(indx), smapper.popL());

   612                     break;

   613                 }

   614                 case opc_fstore: {

   615                     ++i;

   616                     final int indx = wide ? readUShort(byteCodes, i++)

   617                                           : readUByte(byteCodes, i);

   618                     wide = false;

   619                     emit(smapper, this, "var @1 = @2;",

   620                          lmapper.setF(indx), smapper.popF());

   621                     break;

   622                 }

   623                 case opc_dstore: {

   624                     ++i;

   625                     final int indx = wide ? readUShort(byteCodes, i++)

   626                                           : readUByte(byteCodes, i);

   627                     wide = false;

   628                     emit(smapper, this, "var @1 = @2;",

   629                          lmapper.setD(indx), smapper.popD());

   630                     break;

   631                 }

   632                 case opc_astore: {

   633                     ++i;

   634                     final int indx = wide ? readUShort(byteCodes, i++)

   635                                           : readUByte(byteCodes, i);

   636                     wide = false;

   637                     emit(smapper, this, "var @1 = @2;",

   638                          lmapper.setA(indx), smapper.popA());

   639                     break;

   640                 }

   641                 case opc_astore_0:

   642                     emit(smapper, this, "var @1 = @2;", lmapper.setA(0), smapper.popA());

   643                     break;

   644                 case opc_istore_0:

   645                     emit(smapper, this, "var @1 = @2;", lmapper.setI(0), smapper.popI());

   646                     break;

   647                 case opc_lstore_0:

   648                     emit(smapper, this, "var @1 = @2;", lmapper.setL(0), smapper.popL());

   649                     break;

   650                 case opc_fstore_0:

   651                     emit(smapper, this, "var @1 = @2;", lmapper.setF(0), smapper.popF());

   652                     break;

   653                 case opc_dstore_0:

   654                     emit(smapper, this, "var @1 = @2;", lmapper.setD(0), smapper.popD());

   655                     break;

   656                 case opc_astore_1:

   657                     emit(smapper, this, "var @1 = @2;", lmapper.setA(1), smapper.popA());

   658                     break;

   659                 case opc_istore_1:

   660                     emit(smapper, this, "var @1 = @2;", lmapper.setI(1), smapper.popI());

   661                     break;

   662                 case opc_lstore_1:

   663                     emit(smapper, this, "var @1 = @2;", lmapper.setL(1), smapper.popL());

   664                     break;

   665                 case opc_fstore_1:

   666                     emit(smapper, this, "var @1 = @2;", lmapper.setF(1), smapper.popF());

   667                     break;

   668                 case opc_dstore_1:

   669                     emit(smapper, this, "var @1 = @2;", lmapper.setD(1), smapper.popD());

   670                     break;

   671                 case opc_astore_2:

   672                     emit(smapper, this, "var @1 = @2;", lmapper.setA(2), smapper.popA());

   673                     break;

   674                 case opc_istore_2:

   675                     emit(smapper, this, "var @1 = @2;", lmapper.setI(2), smapper.popI());

   676                     break;

   677                 case opc_lstore_2:

   678                     emit(smapper, this, "var @1 = @2;", lmapper.setL(2), smapper.popL());

   679                     break;

   680                 case opc_fstore_2:

   681                     emit(smapper, this, "var @1 = @2;", lmapper.setF(2), smapper.popF());

   682                     break;

   683                 case opc_dstore_2:

   684                     emit(smapper, this, "var @1 = @2;", lmapper.setD(2), smapper.popD());

   685                     break;

   686                 case opc_astore_3:

   687                     emit(smapper, this, "var @1 = @2;", lmapper.setA(3), smapper.popA());

   688                     break;

   689                 case opc_istore_3:

   690                     emit(smapper, this, "var @1 = @2;", lmapper.setI(3), smapper.popI());

   691                     break;

   692                 case opc_lstore_3:

   693                     emit(smapper, this, "var @1 = @2;", lmapper.setL(3), smapper.popL());

   694                     break;

   695                 case opc_fstore_3:

   696                     emit(smapper, this, "var @1 = @2;", lmapper.setF(3), smapper.popF());

   697                     break;

   698                 case opc_dstore_3:

   699                     emit(smapper, this, "var @1 = @2;", lmapper.setD(3), smapper.popD());

   700                     break;

   701                 case opc_iadd:

   702                     smapper.replace(this, VarType.INTEGER, "(@1).add32(@2)", smapper.getI(1), smapper.popI());

   703                     break;

   704                 case opc_ladd:

   705                     smapper.replace(this, VarType.LONG, "(@1).add64(@2)", smapper.getL(1), smapper.popL());

   706                     break;

   707                 case opc_fadd:

   708                     smapper.replace(this, VarType.FLOAT, "(@1 + @2)", smapper.getF(1), smapper.popF());

   709                     break;

   710                 case opc_dadd:

   711                     smapper.replace(this, VarType.DOUBLE, "(@1 + @2)", smapper.getD(1), smapper.popD());

   712                     break;

   713                 case opc_isub:

   714                     smapper.replace(this, VarType.INTEGER, "(@1).sub32(@2)", smapper.getI(1), smapper.popI());

   715                     break;

   716                 case opc_lsub:

   717                     smapper.replace(this, VarType.LONG, "(@1).sub64(@2)", smapper.getL(1), smapper.popL());

   718                     break;

   719                 case opc_fsub:

   720                     smapper.replace(this, VarType.FLOAT, "(@1 - @2)", smapper.getF(1), smapper.popF());

   721                     break;

   722                 case opc_dsub:

   723                     smapper.replace(this, VarType.DOUBLE, "(@1 - @2)", smapper.getD(1), smapper.popD());

   724                     break;

   725                 case opc_imul:

   726                     smapper.replace(this, VarType.INTEGER, "(@1).mul32(@2)", smapper.getI(1), smapper.popI());

   727                     break;

   728                 case opc_lmul:

   729                     smapper.replace(this, VarType.LONG, "(@1).mul64(@2)", smapper.getL(1), smapper.popL());

   730                     break;

   731                 case opc_fmul:

   732                     smapper.replace(this, VarType.FLOAT, "(@1 * @2)", smapper.getF(1), smapper.popF());

   733                     break;

   734                 case opc_dmul:

   735                     smapper.replace(this, VarType.DOUBLE, "(@1 * @2)", smapper.getD(1), smapper.popD());

   736                     break;

   737                 case opc_idiv:

   738                     smapper.replace(this, VarType.INTEGER, "(@1).div32(@2)",

   739                          smapper.getI(1), smapper.popI());

   740                     break;

   741                 case opc_ldiv:

   742                     smapper.replace(this, VarType.LONG, "(@1).div64(@2)",

   743                          smapper.getL(1), smapper.popL());

   744                     break;

   745                 case opc_fdiv:

   746                     smapper.replace(this, VarType.FLOAT, "(@1 / @2)", smapper.getF(1), smapper.popF());

   747                     break;

   748                 case opc_ddiv:

   749                     smapper.replace(this, VarType.DOUBLE, "(@1 / @2)", smapper.getD(1), smapper.popD());

   750                     break;

   751                 case opc_irem:

   752                     smapper.replace(this, VarType.INTEGER, "(@1).mod32(@2)",

   753                          smapper.getI(1), smapper.popI());

   754                     break;

   755                 case opc_lrem:

   756                     smapper.replace(this, VarType.LONG, "(@1).mod64(@2)",

   757                          smapper.getL(1), smapper.popL());

   758                     break;

   759                 case opc_frem:

   760                     smapper.replace(this, VarType.FLOAT, "(@1 % @2)", smapper.getF(1), smapper.popF());

   761                     break;

   762                 case opc_drem:

   763                     smapper.replace(this, VarType.DOUBLE, "(@1 % @2)", smapper.getD(1), smapper.popD());

   764                     break;

   765                 case opc_iand:

   766                     smapper.replace(this, VarType.INTEGER, "(@1 & @2)", smapper.getI(1), smapper.popI());

   767                     break;

   768                 case opc_land:

   769                     smapper.replace(this, VarType.LONG, "(@1).and64(@2)", smapper.getL(1), smapper.popL());

   770                     break;

   771                 case opc_ior:

   772                     smapper.replace(this, VarType.INTEGER, "(@1 | @2)", smapper.getI(1), smapper.popI());

   773                     break;

   774                 case opc_lor:

   775                     smapper.replace(this, VarType.LONG, "(@1).or64(@2)", smapper.getL(1), smapper.popL());

   776                     break;

   777                 case opc_ixor:

   778                     smapper.replace(this, VarType.INTEGER, "(@1 ^ @2)", smapper.getI(1), smapper.popI());

   779                     break;

   780                 case opc_lxor:

   781                     smapper.replace(this, VarType.LONG, "(@1).xor64(@2)", smapper.getL(1), smapper.popL());

   782                     break;

   783                 case opc_ineg:

   784                     smapper.replace(this, VarType.INTEGER, "(@1).neg32()", smapper.getI(0));

   785                     break;

   786                 case opc_lneg:

   787                     smapper.replace(this, VarType.LONG, "(@1).neg64()", smapper.getL(0));

   788                     break;

   789                 case opc_fneg:

   790                     smapper.replace(this, VarType.FLOAT, "(-@1)", smapper.getF(0));

   791                     break;

   792                 case opc_dneg:

   793                     smapper.replace(this, VarType.DOUBLE, "(-@1)", smapper.getD(0));

   794                     break;

   795                 case opc_ishl:

   796                     smapper.replace(this, VarType.INTEGER, "(@1 << @2)", smapper.getI(1), smapper.popI());

   797                     break;

   798                 case opc_lshl:

   799                     smapper.replace(this, VarType.LONG, "(@1).shl64(@2)", smapper.getL(1), smapper.popI());

   800                     break;

   801                 case opc_ishr:

   802                     smapper.replace(this, VarType.INTEGER, "(@1 >> @2)", smapper.getI(1), smapper.popI());

   803                     break;

   804                 case opc_lshr:

   805                     smapper.replace(this, VarType.LONG, "(@1).shr64(@2)", smapper.getL(1), smapper.popI());

   806                     break;

   807                 case opc_iushr:

   808                     smapper.replace(this, VarType.INTEGER, "(@1 >>> @2)", smapper.getI(1), smapper.popI());

   809                     break;

   810                 case opc_lushr:

   811                     smapper.replace(this, VarType.LONG, "(@1).ushr64(@2)", smapper.getL(1), smapper.popI());

   812                     break;

   813                 case opc_iinc: {

   814                     ++i;

   815                     final int varIndx = wide ? readUShort(byteCodes, i++)

   816                                              : readUByte(byteCodes, i);

   817                     ++i;

   818                     final int incrBy = wide ? readShort(byteCodes, i++)

   819                                             : byteCodes[i];

   820                     wide = false;

   821                     if (incrBy == 1) {

   822                         emit(smapper, this, "@1++;", lmapper.getI(varIndx));

   823                     } else {

   824                         emit(smapper, this, "@1 += @2;",

   825                              lmapper.getI(varIndx),

   826                              Integer.toString(incrBy));

   827                     }

   828                     break;

   829                 }

   830                 case opc_return:

   831                     emit(smapper, this, "return;");

   832                     break;

   833                 case opc_ireturn:

   834                     emit(smapper, this, "return @1;", smapper.popI());

   835                     break;

   836                 case opc_lreturn:

   837                     emit(smapper, this, "return @1;", smapper.popL());

   838                     break;

   839                 case opc_freturn:

   840                     emit(smapper, this, "return @1;", smapper.popF());

   841                     break;

   842                 case opc_dreturn:

   843                     emit(smapper, this, "return @1;", smapper.popD());

   844                     break;

   845                 case opc_areturn:

   846                     emit(smapper, this, "return @1;", smapper.popA());

   847                     break;

   848                 case opc_i2l:

   849                     smapper.replace(this, VarType.LONG, "@1", smapper.getI(0));

   850                     break;

   851                 case opc_i2f:

   852                     smapper.replace(this, VarType.FLOAT, "@1", smapper.getI(0));

   853                     break;

   854                 case opc_i2d:

   855                     smapper.replace(this, VarType.DOUBLE, "@1", smapper.getI(0));

   856                     break;

   857                 case opc_l2i:

   858                     smapper.replace(this, VarType.INTEGER, "(@1).toInt32()", smapper.getL(0));

   859                     break;

   860                     // max int check?

   861                 case opc_l2f:

   862                     smapper.replace(this, VarType.FLOAT, "(@1).toFP()", smapper.getL(0));

   863                     break;

   864                 case opc_l2d:

   865                     smapper.replace(this, VarType.DOUBLE, "(@1).toFP()", smapper.getL(0));

   866                     break;

   867                 case opc_f2d:

   868                     smapper.replace(this, VarType.DOUBLE, "@1",

   869                          smapper.getF(0));

   870                     break;

   871                 case opc_d2f:

   872                     smapper.replace(this, VarType.FLOAT, "@1",

   873                          smapper.getD(0));

   874                     break;

   875                 case opc_f2i:

   876                     smapper.replace(this, VarType.INTEGER, "(@1).toInt32()",

   877                          smapper.getF(0));

   878                     break;

   879                 case opc_f2l:

   880                     smapper.replace(this, VarType.LONG, "(@1).toLong()",

   881                          smapper.getF(0));

   882                     break;

   883                 case opc_d2i:

   884                     smapper.replace(this, VarType.INTEGER, "(@1).toInt32()",

   885                          smapper.getD(0));

   886                     break;

   887                 case opc_d2l:

   888                     smapper.replace(this, VarType.LONG, "(@1).toLong()", smapper.getD(0));

   889                     break;

   890                 case opc_i2b:

   891                     smapper.replace(this, VarType.INTEGER, "(@1).toInt8()", smapper.getI(0));

   892                     break;

   893                 case opc_i2c:

   894                 case opc_i2s:

   895                     smapper.replace(this, VarType.INTEGER, "(@1).toInt16()", smapper.getI(0));

   896                     break;

   897                 case opc_aconst_null:

   898                     smapper.assign(this, VarType.REFERENCE, "null");

   899                     break;

   900                 case opc_iconst_m1:

   901                     smapper.assign(this, VarType.INTEGER, "-1");

   902                     break;

   903                 case opc_iconst_0:

   904                     smapper.assign(this, VarType.INTEGER, "0");

   905                     break;

   906                 case opc_dconst_0:

   907                     smapper.assign(this, VarType.DOUBLE, "0");

   908                     break;

   909                 case opc_lconst_0:

   910                     smapper.assign(this, VarType.LONG, "0");

   911                     break;

   912                 case opc_fconst_0:

   913                     smapper.assign(this, VarType.FLOAT, "0");

   914                     break;

   915                 case opc_iconst_1:

   916                     smapper.assign(this, VarType.INTEGER, "1");

   917                     break;

   918                 case opc_lconst_1:

   919                     smapper.assign(this, VarType.LONG, "1");

   920                     break;

   921                 case opc_fconst_1:

   922                     smapper.assign(this, VarType.FLOAT, "1");

   923                     break;

   924                 case opc_dconst_1:

   925                     smapper.assign(this, VarType.DOUBLE, "1");

   926                     break;

   927                 case opc_iconst_2:

   928                     smapper.assign(this, VarType.INTEGER, "2");

   929                     break;

   930                 case opc_fconst_2:

   931                     smapper.assign(this, VarType.FLOAT, "2");

   932                     break;

   933                 case opc_iconst_3:

   934                     smapper.assign(this, VarType.INTEGER, "3");

   935                     break;

   936                 case opc_iconst_4:

   937                     smapper.assign(this, VarType.INTEGER, "4");

   938                     break;

   939                 case opc_iconst_5:

   940                     smapper.assign(this, VarType.INTEGER, "5");

   941                     break;

   942                 case opc_ldc: {

   943                     int indx = readUByte(byteCodes, ++i);

   944                     String v = encodeConstant(indx);

   945                     int type = VarType.fromConstantType(jc.getTag(indx));

   946                     smapper.assign(this, type, v);

   947                     break;

   948                 }

   949                 case opc_ldc_w:

   950                 case opc_ldc2_w: {

   951                     int indx = readUShortArg(byteCodes, i);

   952                     i += 2;

   953                     String v = encodeConstant(indx);

   954                     int type = VarType.fromConstantType(jc.getTag(indx));

   955                     if (type == VarType.LONG) {

   956                         final Long lv = new Long(v);

   957                         final int low = (int)(lv.longValue() & 0xFFFFFFFF);

   958                         final int hi = (int)(lv.longValue() >> 32);

   959                         if (hi == 0) {

   960                             smapper.assign(this, VarType.LONG, "0x" + Integer.toHexString(low));

   961                         } else {

   962                             smapper.assign(this, VarType.LONG,

   963                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

   964                                     Integer.toHexString(low) + ")"

   965                             );

   966                         }

   967                     } else {

   968                         smapper.assign(this, type, v);

   969                     }

   970                     break;

   971                 }

   972                 case opc_lcmp:

   973                     smapper.replace(this, VarType.INTEGER, "(@2).compare64(@1)", smapper.popL(), smapper.getL(0));

   974                     break;

   975                 case opc_fcmpl:

   976                 case opc_fcmpg:

   977                     smapper.replace(this, VarType.INTEGER, "(@2).compare(@1)", smapper.popF(), smapper.getF(0));

   978                     break;

   979                 case opc_dcmpl:

   980                 case opc_dcmpg:

   981                     smapper.replace(this, VarType.INTEGER, "(@2).compare(@1)", smapper.popD(), smapper.getD(0));

   982                     break;

   983                 case opc_if_acmpeq:

   984                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

   985                                    "===", topMostLabel);

   986                     break;

   987                 case opc_if_acmpne:

   988                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

   989                                    "!==", topMostLabel);

   990                     break;

   991                 case opc_if_icmpeq:

   992                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

   993                                    "==", topMostLabel);

   994                     break;

   995                 case opc_ifeq: {

   996                     int indx = i + readShortArg(byteCodes, i);

   997                     emitIf(smapper, this, "if ((@1) == 0) ",

   998                          smapper.popI(), i, indx, topMostLabel);

   999                     i += 2;

  1000                     break;

  1001                 }

  1002                 case opc_ifne: {

  1003                     int indx = i + readShortArg(byteCodes, i);

  1004                     emitIf(smapper, this, "if ((@1) != 0) ",

  1005                          smapper.popI(), i, indx, topMostLabel);

  1006                     i += 2;

  1007                     break;

  1008                 }

  1009                 case opc_iflt: {

  1010                     int indx = i + readShortArg(byteCodes, i);

  1011                     emitIf(smapper, this, "if ((@1) < 0) ",

  1012                          smapper.popI(), i, indx, topMostLabel);

  1013                     i += 2;

  1014                     break;

  1015                 }

  1016                 case opc_ifle: {

  1017                     int indx = i + readShortArg(byteCodes, i);

  1018                     emitIf(smapper, this, "if ((@1) <= 0) ",

  1019                          smapper.popI(), i, indx, topMostLabel);

  1020                     i += 2;

  1021                     break;

  1022                 }

  1023                 case opc_ifgt: {

  1024                     int indx = i + readShortArg(byteCodes, i);

  1025                     emitIf(smapper, this, "if ((@1) > 0) ",

  1026                          smapper.popI(), i, indx, topMostLabel);

  1027                     i += 2;

  1028                     break;

  1029                 }

  1030                 case opc_ifge: {

  1031                     int indx = i + readShortArg(byteCodes, i);

  1032                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1033                          smapper.popI(), i, indx, topMostLabel);

  1034                     i += 2;

  1035                     break;

  1036                 }

  1037                 case opc_ifnonnull: {

  1038                     int indx = i + readShortArg(byteCodes, i);

  1039                     emitIf(smapper, this, "if ((@1) !== null) ",

  1040                          smapper.popA(), i, indx, topMostLabel);

  1041                     i += 2;

  1042                     break;

  1043                 }

  1044                 case opc_ifnull: {

  1045                     int indx = i + readShortArg(byteCodes, i);

  1046                     emitIf(smapper, this, "if ((@1) === null) ",

  1047                          smapper.popA(), i, indx, topMostLabel);

  1048                     i += 2;

  1049                     break;

  1050                 }

  1051                 case opc_if_icmpne:

  1052                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1053                                    "!=", topMostLabel);

  1054                     break;

  1055                 case opc_if_icmplt:

  1056                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1057                                    "<", topMostLabel);

  1058                     break;

  1059                 case opc_if_icmple:

  1060                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1061                                    "<=", topMostLabel);

  1062                     break;

  1063                 case opc_if_icmpgt:

  1064                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1065                                    ">", topMostLabel);

  1066                     break;

  1067                 case opc_if_icmpge:

  1068                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1069                                    ">=", topMostLabel);

  1070                     break;

  1071                 case opc_goto: {

  1072                     smapper.flush(this);

  1073                     int indx = i + readShortArg(byteCodes, i);

  1074                     goTo(this, i, indx, topMostLabel);

  1075                     i += 2;

  1076                     break;

  1077                 }

  1078                 case opc_lookupswitch: {

  1079                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1080                     break;

  1081                 }

  1082                 case opc_tableswitch: {

  1083                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1084                     break;

  1085                 }

  1086                 case opc_invokeinterface: {

  1087                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1088                     break;

  1089                 }

  1090                 case opc_invokevirtual:

  1091                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1092                     break;

  1093                 case opc_invokespecial:

  1094                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1095                     break;

  1096                 case opc_invokestatic:

  1097                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1098                     break;

  1099                 case opc_invokedynamic: {

  1100                     int indx = readUShortArg(byteCodes, i);

  1101                     println("invoke dynamic: " + indx);

  1102                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1103                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1104                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1105                     println("  type: " + methodHandle.cpx1);

  1106                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1107                     String mcn = mangleClassName(mi[0]);

  1108                     char[] returnType = {'V'};

  1109                     StringBuilder cnt = new StringBuilder();

  1110                     String mn = findMethodName(mi, cnt, returnType);

  1111                     StringBuilder sb = new StringBuilder();

  1112                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1113                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1114                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1115                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1116                     sb.append("  mn   : ").append(mn).append("\n");

  1117                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1118                     throw new IOException(sb.toString());

  1119                     /*

  1120                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1121                     String type = jc.StringValue(nameAndType.cpx2);

  1122                     String object = accessClass(mcn) + "(false)";

  1123                     if (mn.startsWith("cons_")) {

  1124                         object += ".constructor";

  1125                     }

  1126                     append("var metHan = ");

  1127                     append(accessStaticMethod(object, mn, mi));

  1128                     append('(');

  1129                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1130                     append(lookup);

  1131                     append(", '").append(mi[1]).append("', ");

  1132                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1133                     append(methodType).append("'").append(type).append("', null)");

  1134 //                    if (numArguments > 0) {

  1135 //                        append(vars[0]);

  1136 //                        for (int j = 1; j < numArguments; ++j) {

  1137 //                            append(", ");

  1138 //                            append(vars[j]);

  1139 //                        }

  1140 //                    }

  1141                     append(");");

  1142                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1143                     i += 4;

  1144                     break;

  1145                     */

  1146                 }

  1147                 case opc_new: {

  1148                     int indx = readUShortArg(byteCodes, i);

  1149                     String ci = jc.getClassName(indx);

  1150                     emit(smapper, this, "var @1 = new @2;",

  1151                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1152                     addReference(ci);

  1153                     i += 2;

  1154                     break;

  1155                 }

  1156                 case opc_newarray:

  1157                     int atype = readUByte(byteCodes, ++i);

  1158                     generateNewArray(atype, smapper);

  1159                     break;

  1160                 case opc_anewarray: {

  1161                     int type = readUShortArg(byteCodes, i);

  1162                     i += 2;

  1163                     generateANewArray(type, smapper);

  1164                     break;

  1165                 }

  1166                 case opc_multianewarray: {

  1167                     int type = readUShortArg(byteCodes, i);

  1168                     i += 2;

  1169                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1170                     break;

  1171                 }

  1172                 case opc_arraylength:

  1173                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1174                     break;

  1175                 case opc_lastore:

  1176                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1177                          smapper.popL(), smapper.popI(), smapper.popA());

  1178                     break;

  1179                 case opc_fastore:

  1180                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1181                          smapper.popF(), smapper.popI(), smapper.popA());

  1182                     break;

  1183                 case opc_dastore:

  1184                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1185                          smapper.popD(), smapper.popI(), smapper.popA());

  1186                     break;

  1187                 case opc_aastore:

  1188                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1189                          smapper.popA(), smapper.popI(), smapper.popA());

  1190                     break;

  1191                 case opc_iastore:

  1192                 case opc_bastore:

  1193                 case opc_castore:

  1194                 case opc_sastore:

  1195                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1196                          smapper.popI(), smapper.popI(), smapper.popA());

  1197                     break;

  1198                 case opc_laload:

  1199                     smapper.replace(this, VarType.LONG, "Array.at(@2, @1)",

  1200                          smapper.popI(), smapper.getA(0));

  1201                     break;

  1202                 case opc_faload:

  1203                     smapper.replace(this, VarType.FLOAT, "Array.at(@2, @1)",

  1204                          smapper.popI(), smapper.getA(0));

  1205                     break;

  1206                 case opc_daload:

  1207                     smapper.replace(this, VarType.DOUBLE, "Array.at(@2, @1)",

  1208                          smapper.popI(), smapper.getA(0));

  1209                     break;

  1210                 case opc_aaload:

  1211                     smapper.replace(this, VarType.REFERENCE, "Array.at(@2, @1)",

  1212                          smapper.popI(), smapper.getA(0));

  1213                     break;

  1214                 case opc_iaload:

  1215                 case opc_baload:

  1216                 case opc_caload:

  1217                 case opc_saload:

  1218                     smapper.replace(this, VarType.INTEGER, "Array.at(@2, @1)",

  1219                          smapper.popI(), smapper.getA(0));

  1220                     break;

  1221                 case opc_pop:

  1222                 case opc_pop2:

  1223                     smapper.pop(1);

  1224                     debug("/* pop */");

  1225                     break;

  1226                 case opc_dup: {

  1227                     final Variable v = smapper.get(0);

  1228                     if (smapper.isDirty()) {

  1229                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1230                     } else {

  1231                         smapper.assign(this, v.getType(), v);

  1232                     }

  1233                     break;

  1234                 }

  1235                 case opc_dup2: {

  1236                     final Variable vi1 = smapper.get(0);

  1238                     if (vi1.isCategory2()) {

  1239                         emit(smapper, this, "var @1 = @2;",

  1240                              smapper.pushT(vi1.getType()), vi1);

  1241                     } else {

  1242                         final Variable vi2 = smapper.get(1);

  1243                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1244                              smapper.pushT(vi2.getType()), vi2,

  1245                              smapper.pushT(vi1.getType()), vi1);

  1246                     }

  1247                     break;

  1248                 }

  1249                 case opc_dup_x1: {

  1250                     final Variable vi1 = smapper.pop(this);

  1251                     final Variable vi2 = smapper.pop(this);

  1252                     final Variable vo3 = smapper.pushT(vi1.getType());

  1253                     final Variable vo2 = smapper.pushT(vi2.getType());

  1254                     final Variable vo1 = smapper.pushT(vi1.getType());

  1256                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1257                          vo1, vi1, vo2, vi2, vo3, vo1);

  1258                     break;

  1259                 }

  1260                 case opc_dup2_x1: {

  1261                     final Variable vi1 = smapper.pop(this);

  1262                     final Variable vi2 = smapper.pop(this);

  1264                     if (vi1.isCategory2()) {

  1265                         final Variable vo3 = smapper.pushT(vi1.getType());

  1266                         final Variable vo2 = smapper.pushT(vi2.getType());

  1267                         final Variable vo1 = smapper.pushT(vi1.getType());

  1269                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1270                              vo1, vi1, vo2, vi2, vo3, vo1);

  1271                     } else {

  1272                         final Variable vi3 = smapper.pop(this);

  1273                         final Variable vo5 = smapper.pushT(vi2.getType());

  1274                         final Variable vo4 = smapper.pushT(vi1.getType());

  1275                         final Variable vo3 = smapper.pushT(vi3.getType());

  1276                         final Variable vo2 = smapper.pushT(vi2.getType());

  1277                         final Variable vo1 = smapper.pushT(vi1.getType());

  1279                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1280                              vo1, vi1, vo2, vi2, vo3, vi3);

  1281                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1282                              vo4, vo1, vo5, vo2);

  1283                     }

  1284                     break;

  1285                 }

  1286                 case opc_dup_x2: {

  1287                     final Variable vi1 = smapper.pop(this);

  1288                     final Variable vi2 = smapper.pop(this);

  1290                     if (vi2.isCategory2()) {

  1291                         final Variable vo3 = smapper.pushT(vi1.getType());

  1292                         final Variable vo2 = smapper.pushT(vi2.getType());

  1293                         final Variable vo1 = smapper.pushT(vi1.getType());

  1295                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1296                              vo1, vi1, vo2, vi2, vo3, vo1);

  1297                     } else {

  1298                         final Variable vi3 = smapper.pop(this);

  1299                         final Variable vo4 = smapper.pushT(vi1.getType());

  1300                         final Variable vo3 = smapper.pushT(vi3.getType());

  1301                         final Variable vo2 = smapper.pushT(vi2.getType());

  1302                         final Variable vo1 = smapper.pushT(vi1.getType());

  1304                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1305                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1306                     }

  1307                     break;

  1308                 }

  1309                 case opc_dup2_x2: {

  1310                     final Variable vi1 = smapper.pop(this);

  1311                     final Variable vi2 = smapper.pop(this);

  1313                     if (vi1.isCategory2()) {

  1314                         if (vi2.isCategory2()) {

  1315                             final Variable vo3 = smapper.pushT(vi1.getType());

  1316                             final Variable vo2 = smapper.pushT(vi2.getType());

  1317                             final Variable vo1 = smapper.pushT(vi1.getType());

  1319                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1320                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1321                         } else {

  1322                             final Variable vi3 = smapper.pop(this);

  1323                             final Variable vo4 = smapper.pushT(vi1.getType());

  1324                             final Variable vo3 = smapper.pushT(vi3.getType());

  1325                             final Variable vo2 = smapper.pushT(vi2.getType());

  1326                             final Variable vo1 = smapper.pushT(vi1.getType());

  1328                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1329                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1330                         }

  1331                     } else {

  1332                         final Variable vi3 = smapper.pop(this);

  1334                         if (vi3.isCategory2()) {

  1335                             final Variable vo5 = smapper.pushT(vi2.getType());

  1336                             final Variable vo4 = smapper.pushT(vi1.getType());

  1337                             final Variable vo3 = smapper.pushT(vi3.getType());

  1338                             final Variable vo2 = smapper.pushT(vi2.getType());

  1339                             final Variable vo1 = smapper.pushT(vi1.getType());

  1341                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1342                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1343                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1344                                  vo4, vo1, vo5, vo2);

  1345                         } else {

  1346                             final Variable vi4 = smapper.pop(this);

  1347                             final Variable vo6 = smapper.pushT(vi2.getType());

  1348                             final Variable vo5 = smapper.pushT(vi1.getType());

  1349                             final Variable vo4 = smapper.pushT(vi4.getType());

  1350                             final Variable vo3 = smapper.pushT(vi3.getType());

  1351                             final Variable vo2 = smapper.pushT(vi2.getType());

  1352                             final Variable vo1 = smapper.pushT(vi1.getType());

  1354                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1355                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1356                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1357                                  vo5, vo1, vo6, vo2);

  1358                         }

  1359                     }

  1360                     break;

  1361                 }

  1362                 case opc_swap: {

  1363                     final Variable vi1 = smapper.get(0);

  1364                     final Variable vi2 = smapper.get(1);

  1366                     if (vi1.getType() == vi2.getType()) {

  1367                         final Variable tmp = smapper.pushT(vi1.getType());

  1369                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1370                              tmp, vi1, vi2);

  1371                         smapper.pop(1);

  1372                     } else {

  1373                         smapper.pop(2);

  1374                         smapper.pushT(vi1.getType());

  1375                         smapper.pushT(vi2.getType());

  1376                     }

  1377                     break;

  1378                 }

  1379                 case opc_bipush:

  1380                     smapper.assign(this, VarType.INTEGER,

  1381                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1382                     break;

  1383                 case opc_sipush:

  1384                     smapper.assign(this, VarType.INTEGER,

  1385                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1386                     );

  1387                     i += 2;

  1388                     break;

  1389                 case opc_getfield: {

  1390                     int indx = readUShortArg(byteCodes, i);

  1391                     String[] fi = jc.getFieldInfoName(indx);

  1392                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1393                     final String mangleClass = mangleClassName(fi[0]);

  1394                     final String mangleClassAccess = accessClass(mangleClass);

  1395                     smapper.replace(this, type, "@2.call(@1)",

  1396                          smapper.getA(0),

  1397                          accessField(mangleClassAccess + "(false)",

  1398                                      "_" + fi[1], fi)

  1399                     );

  1400                     i += 2;

  1401                     break;

  1402                 }

  1403                 case opc_putfield: {

  1404                     int indx = readUShortArg(byteCodes, i);

  1405                     String[] fi = jc.getFieldInfoName(indx);

  1406                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1407                     final String mangleClass = mangleClassName(fi[0]);

  1408                     final String mangleClassAccess = accessClass(mangleClass);

  1409                     emit(smapper, this, "@3.call(@2, @1);",

  1410                          smapper.popT(type),

  1411                          smapper.popA(),

  1412                          accessField(mangleClassAccess + "(false)",

  1413                                      "_" + fi[1], fi));

  1414                     i += 2;

  1415                     break;

  1416                 }

  1417                 case opc_getstatic: {

  1418                     int indx = readUShortArg(byteCodes, i);

  1419                     String[] fi = jc.getFieldInfoName(indx);

  1420                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1421                     String ac = accessClass(mangleClassName(fi[0]));

  1422                     String af = accessField(ac + "(false)", "_" + fi[1], fi);

  1423                     smapper.assign(this, type, af + "()");

  1424                     i += 2;

  1425                     addReference(fi[0]);

  1426                     break;

  1427                 }

  1428                 case opc_putstatic: {

  1429                     int indx = readUShortArg(byteCodes, i);

  1430                     String[] fi = jc.getFieldInfoName(indx);

  1431                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1432                     emit(smapper, this, "@1(false)._@2(@3);",

  1433                          accessClass(mangleClassName(fi[0])), fi[1],

  1434                          smapper.popT(type));

  1435                     i += 2;

  1436                     addReference(fi[0]);

  1437                     break;

  1438                 }

  1439                 case opc_checkcast: {

  1440                     int indx = readUShortArg(byteCodes, i);

  1441                     generateCheckcast(indx, smapper);

  1442                     i += 2;

  1443                     break;

  1444                 }

  1445                 case opc_instanceof: {

  1446                     int indx = readUShortArg(byteCodes, i);

  1447                     generateInstanceOf(indx, smapper);

  1448                     i += 2;

  1449                     break;

  1450                 }

  1451                 case opc_athrow: {

  1452                     final CharSequence v = smapper.popA();

  1453                     smapper.clear();

  1455                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1456                          smapper.pushA(), v);

  1457                     break;

  1458                 }

  1460                 case opc_monitorenter: {

  1461                     debug("/* monitor enter */");

  1462                     smapper.popA();

  1463                     break;

  1464                 }

  1466                 case opc_monitorexit: {

  1467                     debug("/* monitor exit */");

  1468                     smapper.popA();

  1469                     break;

  1470                 }

  1472                 case opc_wide:

  1473                     wide = true;

  1474                     break;

  1476                 default: {

  1477                     wide = false;

  1478                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1479                          Integer.toString(c));

  1480                 }

  1481             }

  1482             if (debug(" //")) {

  1483                 generateByteCodeComment(prev, i, byteCodes);

  1484             }

  1485             if (outChanged) {

  1486                 append("\n");

  1487             }

  1488         }

  1489         if (previousTrap != null) {

  1490             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1491         }

  1492         if (didBranches) {

  1493             append("\n    }\n");

  1494         }

  1495         while (openBraces-- > 0) {

  1496             append('}');

  1497         }

  1498         if (defineProp) {

  1499             append("\n}});");

  1500         } else {

  1501             append("\n};");

  1502         }

  1503         return defineProp;

  1504     }

  1506     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1507         int i, final CharSequence v2, final CharSequence v1,

  1508         final String test, int topMostLabel

  1509     ) throws IOException {

  1510         mapper.flush(this);

  1511         int indx = i + readShortArg(byteCodes, i);

  1512         append("if ((").append(v1)

  1513            .append(") ").append(test).append(" (")

  1514            .append(v2).append(")) ");

  1515         goTo(this, i, indx, topMostLabel);

  1516         return i + 2;

  1517     }

  1519     private int readInt4(byte[] byteCodes, int offset) {

  1520         final int d = byteCodes[offset + 0] << 24;

  1521         final int c = byteCodes[offset + 1] << 16;

  1522         final int b = byteCodes[offset + 2] << 8;

  1523         final int a = byteCodes[offset + 3];

  1524         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1525     }

  1526     private static int readUByte(byte[] byteCodes, int offset) {

  1527         return byteCodes[offset] & 0xff;

  1528     }

  1530     private static int readUShort(byte[] byteCodes, int offset) {

  1531         return ((byteCodes[offset] & 0xff) << 8)

  1532                     | (byteCodes[offset + 1] & 0xff);

  1533     }

  1534     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1535         return readUShort(byteCodes, offsetInstruction + 1);

  1536     }

  1538     private static int readShort(byte[] byteCodes, int offset) {

  1539         int signed = byteCodes[offset];

  1540         byte b0 = (byte)signed;

  1541         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1542     }

  1543     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1544         return readShort(byteCodes, offsetInstruction + 1);

  1545     }

  1547     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1548         int i = 0;

  1549         Boolean count = null;

  1550         boolean array = false;

  1551         sig.append("__");

  1552         int firstPos = sig.length();

  1553         while (i < descriptor.length()) {

  1554             char ch = descriptor.charAt(i++);

  1555             switch (ch) {

  1556                 case '(':

  1557                     count = true;

  1558                     continue;

  1559                 case ')':

  1560                     count = false;

  1561                     continue;

  1562                 case 'B':

  1563                 case 'C':

  1564                 case 'D':

  1565                 case 'F':

  1566                 case 'I':

  1567                 case 'J':

  1568                 case 'S':

  1569                 case 'Z':

  1570                     if (count) {

  1571                         if (array) {

  1572                             sig.append("_3");

  1573                         }

  1574                         sig.append(ch);

  1575                         if (ch == 'J' || ch == 'D') {

  1576                             cnt.append('1');

  1577                         } else {

  1578                             cnt.append('0');

  1579                         }

  1580                     } else {

  1581                         sig.insert(firstPos, ch);

  1582                         if (array) {

  1583                             returnType[0] = '[';

  1584                             sig.insert(firstPos, "_3");

  1585                         } else {

  1586                             returnType[0] = ch;

  1587                         }

  1588                     }

  1589                     array = false;

  1590                     continue;

  1591                 case 'V':

  1592                     assert !count;

  1593                     returnType[0] = 'V';

  1594                     sig.insert(firstPos, 'V');

  1595                     continue;

  1596                 case 'L':

  1597                     int next = descriptor.indexOf(';', i);

  1598                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1599                     if (count) {

  1600                         if (array) {

  1601                             sig.append("_3");

  1602                         }

  1603                         sig.append(realSig);

  1604                         cnt.append('0');

  1605                     } else {

  1606                         sig.insert(firstPos, realSig);

  1607                         if (array) {

  1608                             sig.insert(firstPos, "_3");

  1609                         }

  1610                         returnType[0] = 'L';

  1611                     }

  1612                     i = next + 1;

  1613                     array = false;

  1614                     continue;

  1615                 case '[':

  1616                     array = true;

  1617                     continue;

  1618                 default:

  1619                     throw new IllegalStateException("Invalid char: " + ch);

  1620             }

  1621         }

  1622     }

  1624     static String mangleSig(String sig) {

  1625         return mangleSig(sig, 0, sig.length());

  1626     }

  1628     private static String mangleMethodName(String name) {

  1629         StringBuilder sb = new StringBuilder(name.length() * 2);

  1630         int last = name.length();

  1631         for (int i = 0; i < last; i++) {

  1632             final char ch = name.charAt(i);

  1633             switch (ch) {

  1634                 case '_': sb.append("_1"); break;

  1635                 default: sb.append(ch); break;

  1636             }

  1637         }

  1638         return sb.toString();

  1639     }

  1640     private static String mangleSig(String txt, int first, int last) {

  1641         StringBuilder sb = new StringBuilder((last - first) * 2);

  1642         for (int i = first; i < last; i++) {

  1643             final char ch = txt.charAt(i);

  1644             switch (ch) {

  1645                 case '/': sb.append('_'); break;

  1646                 case '_': sb.append("_1"); break;

  1647                 case ';': sb.append("_2"); break;

  1648                 case '[': sb.append("_3"); break;

  1649                 default:

  1650                     if (Character.isJavaIdentifierPart(ch)) {

  1651                         sb.append(ch);

  1652                     } else {

  1653                         sb.append("_0");

  1654                         String hex = Integer.toHexString(ch).toLowerCase();

  1655                         for (int m = hex.length(); m < 4; m++) {

  1656                             sb.append("0");

  1657                         }

  1658                         sb.append(hex);

  1659                     }

  1660                 break;

  1661             }

  1662         }

  1663         return sb.toString();

  1664     }

  1666     private static String mangleClassName(String name) {

  1667         return mangleSig(name);

  1668     }

  1670     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1671         StringBuilder name = new StringBuilder();

  1672         if ("<init>".equals(m.getName())) { // NOI18N

  1673             name.append("cons"); // NOI18N

  1674         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1675             name.append("class"); // NOI18N

  1676         } else {

  1677             name.append(mangleMethodName(m.getName()));

  1678         }

  1680         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1681         return name.toString();

  1682     }

  1684     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1685         StringBuilder name = new StringBuilder();

  1686         String descr = mi[2];//mi.getDescriptor();

  1687         String nm= mi[1];

  1688         if ("<init>".equals(nm)) { // NOI18N

  1689             name.append("cons"); // NOI18N

  1690         } else {

  1691             name.append(mangleMethodName(nm));

  1692         }

  1693         countArgs(descr, returnType, name, cnt);

  1694         return name.toString();

  1695     }

  1697     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1698     throws IOException {

  1699         int methodIndex = readUShortArg(byteCodes, i);

  1700         String[] mi = jc.getFieldInfoName(methodIndex);

  1701         char[] returnType = { 'V' };

  1702         StringBuilder cnt = new StringBuilder();

  1703         String mn = findMethodName(mi, cnt, returnType);

  1705         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1706         final CharSequence[] vars = new CharSequence[numArguments];

  1708         for (int j = numArguments - 1; j >= 0; --j) {

  1709             vars[j] = mapper.popValue();

  1710         }

  1712         if (returnType[0] != 'V') {

  1713             mapper.flush(this);

  1714             append("var ")

  1715                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1716                .append(" = ");

  1717         }

  1719         final String in = mi[0];

  1720         String mcn;

  1721         if (callbacks && (

  1722             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1723             in.equals("org/netbeans/html/boot/spi/Fn")

  1724         )) {

  1725             mcn = "java_lang_Class";

  1726         } else {

  1727             mcn = mangleClassName(in);

  1728         }

  1729         String object = accessClass(mcn) + "(false)";

  1730         if (mn.startsWith("cons_")) {

  1731             object += ".constructor";

  1732         }

  1733         append(accessStaticMethod(object, mn, mi));

  1734         if (isStatic) {

  1735             append('(');

  1736         } else {

  1737             append(".call(");

  1738         }

  1739         if (numArguments > 0) {

  1740             append(vars[0]);

  1741             for (int j = 1; j < numArguments; ++j) {

  1742                 append(", ");

  1743                 append(vars[j]);

  1744             }

  1745         }

  1746         append(");");

  1747         i += 2;

  1748         addReference(in);

  1749         return i;

  1750     }

  1751     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1752     throws IOException {

  1753         int methodIndex = readUShortArg(byteCodes, i);

  1754         String[] mi = jc.getFieldInfoName(methodIndex);

  1755         char[] returnType = { 'V' };

  1756         StringBuilder cnt = new StringBuilder();

  1757         String mn = findMethodName(mi, cnt, returnType);

  1759         final int numArguments = cnt.length() + 1;

  1760         final CharSequence[] vars =  new CharSequence[numArguments];

  1762         for (int j = numArguments - 1; j >= 0; --j) {

  1763             vars[j] = mapper.popValue();

  1764         }

  1766         if (returnType[0] != 'V') {

  1767             append("var ")

  1768                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1769                .append(" = ");

  1770         }

  1772         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1773         String sep = "";

  1774         for (int j = 1; j < numArguments; ++j) {

  1775             append(sep);

  1776             append(vars[j]);

  1777             sep = ", ";

  1778         }

  1779         append(");");

  1780         i += 2;

  1781         return i;

  1782     }

  1784     private void addReference(String cn) throws IOException {

  1785         if (requireReference(cn)) {

  1786             debug(" /* needs " + cn + " */");

  1787         }

  1788     }

  1790     private void outType(String d, StringBuilder out) {

  1791         int arr = 0;

  1792         while (d.charAt(0) == '[') {

  1793             out.append('A');

  1794             d = d.substring(1);

  1795         }

  1796         if (d.charAt(0) == 'L') {

  1797             assert d.charAt(d.length() - 1) == ';';

  1798             out.append(d.replace('/', '_').substring(0, d.length() - 1));

  1799         } else {

  1800             out.append(d);

  1801         }

  1802     }

  1804     private String encodeConstant(int entryIndex) throws IOException {

  1805         String[] classRef = { null };

  1806         String s = jc.stringValue(entryIndex, classRef);

  1807         if (classRef[0] != null) {

  1808             if (classRef[0].startsWith("[")) {

  1809                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1810             } else {

  1811                 addReference(classRef[0]);

  1812                 s = accessClass(mangleClassName(s)) + "(false).constructor.$class";

  1813             }

  1814         }

  1815         return s;

  1816     }

  1818     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1819         byte[] arr = m.findAnnotationData(true);

  1820         if (arr == null) {

  1821             return null;

  1822         }

  1823         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1824         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1825         class P extends AnnotationParser {

  1826             public P() {

  1827                 super(false, true);

  1828             }

  1830             int cnt;

  1831             String[] args = new String[30];

  1832             String body;

  1833             boolean javacall;

  1834             boolean html4j;

  1836             @Override

  1837             protected void visitAttr(String type, String attr, String at, String value) {

  1838                 if (type.equals(jvmType)) {

  1839                     if ("body".equals(attr)) {

  1840                         body = value;

  1841                     } else if ("args".equals(attr)) {

  1842                         args[cnt++] = value;

  1843                     } else {

  1844                         throw new IllegalArgumentException(attr);

  1845                     }

  1846                 }

  1847                 if (type.equals(htmlType)) {

  1848                     html4j = true;

  1849                     if ("body".equals(attr)) {

  1850                         body = value;

  1851                     } else if ("args".equals(attr)) {

  1852                         args[cnt++] = value;

  1853                     } else if ("javacall".equals(attr)) {

  1854                         javacall = "1".equals(value);

  1855                     } else if ("wait4js".equals(attr)) {

  1856                         // ignore, we always invoke synchronously

  1857                     } else {

  1858                         throw new IllegalArgumentException(attr);

  1859                     }

  1860                 }

  1861             }

  1862         }

  1863         P p = new P();

  1864         p.parse(arr, jc);

  1865         if (p.body == null) {

  1866             return null;

  1867         }

  1868         StringBuilder cnt = new StringBuilder();

  1869         final String mn = findMethodName(m, cnt);

  1870         append("m = ").append(destObject).append(".").append(mn);

  1871         append(" = function(");

  1872         String space = "";

  1873         int index = 0;

  1874         StringBuilder toValue = new StringBuilder();

  1875         for (int i = 0; i < cnt.length(); i++) {

  1876             append(space);

  1877             space = outputArg(this, p.args, index);

  1878             if (p.html4j && space.length() > 0) {

  1879                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1880                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1881                     append(p.args[index]).append(");");

  1882             }

  1883             index++;

  1884         }

  1885         append(") {").append("\n");

  1886         append(toValue.toString());

  1887         if (p.javacall) {

  1888             int lastSlash = jc.getClassName().lastIndexOf('/');

  1889             final String pkg = jc.getClassName().substring(0, lastSlash);

  1890             append(mangleCallbacks(pkg, p.body));

  1891             requireReference(pkg + "/$JsCallbacks$");

  1892         } else {

  1893             append(p.body);

  1894         }

  1895         append("\n}\n");

  1896         return mn;

  1897     }

  1899     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1900         StringBuilder sb = new StringBuilder();

  1901         int pos = 0;

  1902         for (;;) {

  1903             int next = body.indexOf(".@", pos);

  1904             if (next == -1) {

  1905                 sb.append(body.substring(pos));

  1906                 body = sb.toString();

  1907                 break;

  1908             }

  1909             int ident = next;

  1910             while (ident > 0) {

  1911                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  1912                     ident++;

  1913                     break;

  1914                 }

  1915             }

  1916             String refId = body.substring(ident, next);

  1918             sb.append(body.substring(pos, ident));

  1920             int sigBeg = body.indexOf('(', next);

  1921             int sigEnd = body.indexOf(')', sigBeg);

  1922             int colon4 = body.indexOf("::", next);

  1923             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1924                 throw new IllegalStateException("Malformed body " + body);

  1925             }

  1926             String fqn = body.substring(next + 2, colon4);

  1927             String method = body.substring(colon4 + 2, sigBeg);

  1928             String params = body.substring(sigBeg, sigEnd + 1);

  1930             int paramBeg = body.indexOf('(', sigEnd + 1);

  1932             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  1933             sb.append(mangleJsCallbacks(fqn, method, params, false));

  1934             sb.append("(").append(refId);

  1935             if (body.charAt(paramBeg + 1) != ')') {

  1936                 sb.append(",");

  1937             }

  1938             pos = paramBeg + 1;

  1939         }

  1940         sb = null;

  1941         pos = 0;

  1942         for (;;) {

  1943             int next = body.indexOf("@", pos);

  1944             if (next == -1) {

  1945                 if (sb == null) {

  1946                     return body;

  1947                 }

  1948                 sb.append(body.substring(pos));

  1949                 return sb;

  1950             }

  1951             if (sb == null) {

  1952                 sb = new StringBuilder();

  1953             }

  1955             sb.append(body.substring(pos, next));

  1957             int sigBeg = body.indexOf('(', next);

  1958             int sigEnd = body.indexOf(')', sigBeg);

  1959             int colon4 = body.indexOf("::", next);

  1960             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1961                 throw new IllegalStateException("Malformed body " + body);

  1962             }

  1963             String fqn = body.substring(next + 1, colon4);

  1964             String method = body.substring(colon4 + 2, sigBeg);

  1965             String params = body.substring(sigBeg, sigEnd + 1);

  1967             int paramBeg = body.indexOf('(', sigEnd + 1);

  1969             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  1970             sb.append(mangleJsCallbacks(fqn, method, params, true));

  1971             sb.append("(");

  1972             pos = paramBeg + 1;

  1973         }

  1974     }

  1976     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  1977         if (params.startsWith("(")) {

  1978             params = params.substring(1);

  1979         }

  1980         if (params.endsWith(")")) {

  1981             params = params.substring(0, params.length() - 1);

  1982         }

  1983         StringBuilder sb = new StringBuilder();

  1984         final String fqnu = fqn.replace('.', '_');

  1985         final String rfqn = mangleClassName(fqnu);

  1986         final String rm = mangleMethodName(method);

  1987         final String srp;

  1988         {

  1989             StringBuilder pb = new StringBuilder();

  1990             int len = params.length();

  1991             int indx = 0;

  1992             while (indx < len) {

  1993                 char ch = params.charAt(indx);

  1994                 if (ch == '[' || ch == 'L') {

  1995                     int column = params.indexOf(';', indx) + 1;

  1996                     if (column > indx) {

  1997                         String real = params.substring(indx, column);

  1998                         if ("Ljava/lang/String;".equals(real)) {

  1999                             pb.append("Ljava/lang/String;");

  2000                             indx = column;

  2001                             continue;

  2002                         }

  2003                     }

  2004                     pb.append("Ljava/lang/Object;");

  2005                     indx = column;

  2006                 } else {

  2007                     pb.append(ch);

  2008                     indx++;

  2009                 }

  2010             }

  2011             srp = mangleSig(pb.toString());

  2012         }

  2013         final String rp = mangleSig(params);

  2014         final String mrp = mangleMethodName(rp);

  2015         sb.append(rfqn).append("$").append(rm).

  2016             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2017         if (!isStatic) {

  2018             sb.append('L').append(fqnu).append("_2");

  2019         }

  2020         sb.append(srp);

  2021         return sb.toString();

  2022     }

  2024     private static String className(ClassData jc) {

  2025         //return jc.getName().getInternalName().replace('/', '_');

  2026         return mangleClassName(jc.getClassName());

  2027     }

  2029     private static String[] findAnnotation(

  2030         byte[] arr, ClassData cd, final String className,

  2031         final String... attrNames

  2032     ) throws IOException {

  2033         if (arr == null) {

  2034             return null;

  2035         }

  2036         final String[] values = new String[attrNames.length];

  2037         final boolean[] found = { false };

  2038         final String jvmType = "L" + className.replace('.', '/') + ";";

  2039         AnnotationParser ap = new AnnotationParser(false, true) {

  2040             @Override

  2041             protected void visitAttr(String type, String attr, String at, String value) {

  2042                 if (type.equals(jvmType)) {

  2043                     found[0] = true;

  2044                     for (int i = 0; i < attrNames.length; i++) {

  2045                         if (attrNames[i].equals(attr)) {

  2046                             values[i] = value;

  2047                         }

  2048                     }

  2049                 }

  2050             }

  2052         };

  2053         ap.parse(arr, cd);

  2054         return found[0] ? values : null;

  2055     }

  2057     private CharSequence initField(FieldData v) {

  2058         final String is = v.getInternalSig();

  2059         if (is.length() == 1) {

  2060             switch (is.charAt(0)) {

  2061                 case 'S':

  2062                 case 'J':

  2063                 case 'B':

  2064                 case 'Z':

  2065                 case 'C':

  2066                 case 'I': return " = 0;";

  2067                 case 'F':

  2068                 case 'D': return " = 0.0;";

  2069                 default:

  2070                     throw new IllegalStateException(is);

  2071             }

  2072         }

  2073         return " = null;";

  2074     }

  2076     private void generateAnno(ClassData cd, byte[] data) throws IOException {

  2077         AnnotationParser ap = new AnnotationParser(true, false) {

  2078             int[] cnt = new int[32];

  2079             int depth;

  2081             @Override

  2082             protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2083                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2084                 requireReference(slashType);

  2086                 if (cnt[depth]++ > 0) {

  2087                     append(",");

  2088                 }

  2089                 if (top) {

  2090                     append('"').append(attrType).append("\" : ");

  2091                 }

  2092                 append("{\n");

  2093                 cnt[++depth] = 0;

  2094             }

  2096             @Override

  2097             protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2098                 append("\n}\n");

  2099                 depth--;

  2100             }

  2102             @Override

  2103             protected void visitValueStart(String attrName, char type) throws IOException {

  2104                 if (cnt[depth]++ > 0) {

  2105                     append(",\n");

  2106                 }

  2107                 cnt[++depth] = 0;

  2108                 if (attrName != null) {

  2109                     append('"').append(attrName).append("\" : ");

  2110                 }

  2111                 if (type == '[') {

  2112                     append("[");

  2113                 }

  2114             }

  2116             @Override

  2117             protected void visitValueEnd(String attrName, char type) throws IOException {

  2118                 if (type == '[') {

  2119                     append("]");

  2120                 }

  2121                 depth--;

  2122             }

  2124             @Override

  2125             protected void visitAttr(String type, String attr, String attrType, String value)

  2126             throws IOException {

  2127                 if (attr == null && value == null) {

  2128                     return;

  2129                 }

  2130                 append(value);

  2131             }

  2133             @Override

  2134             protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2135             throws IOException {

  2136                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2137                 requireReference(slashType);

  2139                 final String cn = mangleClassName(slashType);

  2140                 append(accessClass(cn))

  2141                    .append("(false)['valueOf__L").

  2142                     append(cn).

  2143                     append("_2Ljava_lang_String_2']('").

  2144                     append(value).

  2145                     append("')");

  2146             }

  2147         };

  2148         ap.parse(data, cd);

  2149     }

  2151     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2152         final String name = args[indx];

  2153         if (name == null) {

  2154             return "";

  2155         }

  2156         if (name.contains(",")) {

  2157             throw new IOException("Wrong parameter with ',': " + name);

  2158         }

  2159         out.append(name);

  2160         return ",";

  2161     }

  2163     final void emitNoFlush(

  2164         StackMapper sm,

  2165         final String format, final CharSequence... params

  2166     ) throws IOException {

  2167         emitImpl(this, format, params);

  2168     }

  2169     static final void emit(

  2170         StackMapper sm,

  2171         final Appendable out,

  2172         final String format, final CharSequence... params

  2173     ) throws IOException {

  2174         sm.flush(out);

  2175         emitImpl(out, format, params);

  2176     }

  2177     static void emitImpl(final Appendable out,

  2178                              final String format,

  2179                              final CharSequence... params) throws IOException {

  2180         final int length = format.length();

  2182         int processed = 0;

  2183         int paramOffset = format.indexOf('@');

  2184         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2185             final char paramChar = format.charAt(paramOffset + 1);

  2186             if ((paramChar >= '1') && (paramChar <= '9')) {

  2187                 final int paramIndex = paramChar - '0' - 1;

  2189                 out.append(format, processed, paramOffset);

  2190                 out.append(params[paramIndex]);

  2192                 ++paramOffset;

  2193                 processed = paramOffset + 1;

  2194             }

  2196             paramOffset = format.indexOf('@', paramOffset + 1);

  2197         }

  2199         out.append(format, processed, length);

  2200     }

  2202     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2203         append("} catch (e) {\n");

  2204         int finallyPC = -1;

  2205         for (TrapData e : traps) {

  2206             if (e == null) {

  2207                 break;

  2208             }

  2209             if (e.catch_cpx != 0) { //not finally

  2210                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2211                 addReference(classInternalName);

  2212                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2213                 append("if (e['$instOf_" + classInternalName.replace('/', '_') + "']) {");

  2214                 append("var stA0 = e;");

  2215                 goTo(this, current, e.handler_pc, topMostLabel);

  2216                 append("}\n");

  2217             } else {

  2218                 finallyPC = e.handler_pc;

  2219             }

  2220         }

  2221         if (finallyPC == -1) {

  2222             append("throw e;");

  2223         } else {

  2224             append("var stA0 = e;");

  2225             goTo(this, current, finallyPC, topMostLabel);

  2226         }

  2227         append("\n}");

  2228     }

  2230     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2231         if (to < current) {

  2232             if (canBack < to) {

  2233                 out.append("{ gt = 0; continue X_" + to + "; }");

  2234             } else {

  2235                 out.append("{ gt = " + to + "; continue X_0; }");

  2236             }

  2237         } else {

  2238             out.append("{ gt = " + to + "; break IF; }");

  2239         }

  2240     }

  2242     private static void emitIf(

  2243         StackMapper sm,

  2244         Appendable out, String pattern,

  2245         CharSequence param,

  2246         int current, int to, int canBack

  2247     ) throws IOException {

  2248         sm.flush(out);

  2249         emitImpl(out, pattern, param);

  2250         goTo(out, current, to, canBack);

  2251     }

  2253     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2254         String jvmType;

  2255         switch (atype) {

  2256             case 4: jvmType = "[Z"; break;

  2257             case 5: jvmType = "[C"; break;

  2258             case 6: jvmType = "[F"; break;

  2259             case 7: jvmType = "[D"; break;

  2260             case 8: jvmType = "[B"; break;

  2261             case 9: jvmType = "[S"; break;

  2262             case 10: jvmType = "[I"; break;

  2263             case 11: jvmType = "[J"; break;

  2264             default: throw new IllegalStateException("Array type: " + atype);

  2265         }

  2266         emit(smapper, this,

  2267             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2268              smapper.popI(), smapper.pushA(), jvmType);

  2269     }

  2271     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2272         String typeName = jc.getClassName(type);

  2273         String ref = "null";

  2274         if (typeName.startsWith("[")) {

  2275             typeName = "'[" + typeName + "'";

  2276         } else {

  2277             ref = "vm." + mangleClassName(typeName);

  2278             typeName = "'[L" + typeName + ";'";

  2279         }

  2280         emit(smapper, this,

  2281             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2282              smapper.popI(), smapper.pushA(), typeName, ref);

  2283     }

  2285     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2286         String typeName = jc.getClassName(type);

  2287         int dim = readUByte(byteCodes, ++i);

  2288         StringBuilder dims = new StringBuilder();

  2289         dims.append('[');

  2290         for (int d = 0; d < dim; d++) {

  2291             if (d != 0) {

  2292                 dims.insert(1, ",");

  2293             }

  2294             dims.insert(1, smapper.popI());

  2295         }

  2296         dims.append(']');

  2297         String fn = "null";

  2298         if (typeName.charAt(dim) == 'L') {

  2299             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2300         }

  2301         emit(smapper, this,

  2302             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2303              dims.toString(), smapper.pushA(), typeName, fn

  2304         );

  2305         return i;

  2306     }

  2308     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2309         int table = i / 4 * 4 + 4;

  2310         int dflt = i + readInt4(byteCodes, table);

  2311         table += 4;

  2312         int low = readInt4(byteCodes, table);

  2313         table += 4;

  2314         int high = readInt4(byteCodes, table);

  2315         table += 4;

  2316         final CharSequence swVar = smapper.popValue();

  2317         smapper.flush(this);

  2318         append("switch (").append(swVar).append(") {\n");

  2319         while (low <= high) {

  2320             int offset = i + readInt4(byteCodes, table);

  2321             table += 4;

  2322             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2323             low++;

  2324         }

  2325         append("  default: ");

  2326         goTo(this, i, dflt, topMostLabel);

  2327         append("\n}");

  2328         i = table - 1;

  2329         return i;

  2330     }

  2332     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2333         int table = i / 4 * 4 + 4;

  2334         int dflt = i + readInt4(byteCodes, table);

  2335         table += 4;

  2336         int n = readInt4(byteCodes, table);

  2337         table += 4;

  2338         final CharSequence swVar = smapper.popValue();

  2339         smapper.flush(this);

  2340         append("switch (").append(swVar).append(") {\n");

  2341         while (n-- > 0) {

  2342             int cnstnt = readInt4(byteCodes, table);

  2343             table += 4;

  2344             int offset = i + readInt4(byteCodes, table);

  2345             table += 4;

  2346             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2347         }

  2348         append("  default: ");

  2349         goTo(this, i, dflt, topMostLabel);

  2350         append("\n}");

  2351         i = table - 1;

  2352         return i;

  2353     }

  2355     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2356         String type = jc.getClassName(indx);

  2357         if (!type.startsWith("[")) {

  2358             emit(smapper, this,

  2359                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2360                  smapper.popA(), smapper.pushI(),

  2361                  type.replace('/', '_'));

  2362         } else {

  2363             int cnt = 0;

  2364             while (type.charAt(cnt) == '[') {

  2365                 cnt++;

  2366             }

  2367             if (type.charAt(cnt) == 'L') {

  2368                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2369                 emit(smapper, this,

  2370                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2371                     smapper.popA(), smapper.pushI(),

  2372                     type, "" + cnt

  2373                 );

  2374             } else {

  2375                 emit(smapper, this,

  2376                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2377                     smapper.popA(), smapper.pushI(), type

  2378                 );

  2379             }

  2380         }

  2381     }

  2383     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2384         String type = jc.getClassName(indx);

  2385         if (!type.startsWith("[")) {

  2386             emitNoFlush(smapper,

  2387                  "if (@1 !== null && !@1['$instOf_@2']) throw vm.java_lang_ClassCastException(true);",

  2388                  smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));

  2389         } else {

  2390             int cnt = 0;

  2391             while (type.charAt(cnt) == '[') {

  2392                 cnt++;

  2393             }

  2394             if (type.charAt(cnt) == 'L') {

  2395                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2396                 emitNoFlush(smapper,

  2397                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) throw vm.java_lang_ClassCastException(true);",

  2398                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2399                 );

  2400             } else {

  2401                 emitNoFlush(smapper,

  2402                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) throw vm.java_lang_ClassCastException(true);",

  2403                      smapper.getT(0, VarType.REFERENCE, false), type

  2404                 );

  2405             }

  2406         }

  2407     }

  2409     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2410         for (int j = prev; j <= i; j++) {

  2411             append(" ");

  2412             final int cc = readUByte(byteCodes, j);

  2413             append(Integer.toString(cc));

  2414         }

  2415     }

  2417     @JavaScriptBody(args = "msg", body = "")

  2418     private static void println(String msg) {

  2419         System.err.println(msg);

  2420     }

  2421 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Mon, 22 Dec 2014 20:33:44 +0100
changeset 1754	ff4983098f3f
parent 1727	86e61729f754
child 1772	e80693152d8b
permissions	-rw-r--r--