hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@136787ac00d3

     1 /**

     2  * Back 2 Browser Bytecode Translator

     3  * Copyright (C) 2012-2015 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     String accessClassFalse(String classOperation) {

    89         if (jc.getClassName().replace('/', '_').equals(classOperation)) {

    90             return "c";

    91         }

    92         return accessClass(classOperation) + "(false)";

    93     }

    95     protected String accessField(String object, String mangledName,

    96                                  String[] fieldInfoName) throws IOException {

    97         return object + "." + mangledName;

    98     }

   100     protected String accessStaticMethod(

   101                              String object,

   102                              String mangledName,

   103                              String[] fieldInfoName) throws IOException {

   104         return object + "." + mangledName;

   105     }

   107     protected String accessVirtualMethod(

   108             String object,

   109             String mangledName,

   110             String[] fieldInfoName,

   111             int params

   112     ) throws IOException {

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

   114     }

   116     protected void declaredClass(ClassData classData, String mangledName)

   117             throws IOException {

   118     }

   120     protected void declaredField(FieldData fieldData,

   121                                  String destObject,

   122                                  String mangledName) throws IOException {

   123     }

   125     protected void declaredMethod(MethodData methodData,

   126                                   String destObject,

   127                                   String mangledName) throws IOException {

   128     }

   130     /** Prints out a debug message.

   131      *

   132      * @param msg the message

   133      * @return true if the message has been printed

   134      * @throws IOException

   135      */

   136     boolean debug(String msg) throws IOException {

   137         append(msg);

   138         return true;

   139     }

   141     /**

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

   143      *

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

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

   146      *

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

   148      */

   150     public String compile(InputStream classFile) throws IOException {

   151         return compile(new ClassData(classFile));

   152     }

   154     protected String compile(ClassData classData) throws IOException {

   155         this.jc = classData;

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

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

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

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

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

   161             );

   162         }

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

   164         {

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

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

   167                 "resource", "processByteCode"

   168             );

   169             if (arr != null) {

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

   171                     requireScript(arr[0]);

   172                 }

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

   174                     return null;

   175                 }

   176             }

   177         }

   178         final String jsResource;

   179         {

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

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

   182                 "value"

   183             );

   184             if (arr != null) {

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

   186                     jsResource = arr[0];

   187                 } else {

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

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

   190                 }

   191             } else {

   192                 jsResource = null;

   193             }

   194         }

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

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

   197             "container", "prototype"

   198         );

   199         StringArray toInitilize = new StringArray();

   200         final String className = className(jc);

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

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

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

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

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

   206         if (proto == null) {

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

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

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

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

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

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

   213         } else {

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

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

   216                 proto[0] = "p";

   217             }

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

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

   220         }

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

   222             if (v.isStatic()) {

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

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

   225                         continue;

   226                     }

   227                 }

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

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

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

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

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

   233             } else {

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

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

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

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

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

   239                    .append("; };");

   240             }

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

   243         }

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

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

   246             if (javaScriptOnly(onlyArr)) continue;

   247             String destObject;

   248             String mn;

   249             append("\n    ");

   250             if (m.isStatic()) {

   251                 destObject = "c";

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

   253             } else {

   254                 if (m.isConstructor()) {

   255                     destObject = "CLS";

   256                     mn = generateInstanceMethod(destObject, m);

   257                 } else {

   258                     destObject = "c";

   259                     mn = generateInstanceMethod(destObject, m);

   260                 }

   261             }

   262             declaredMethod(m, destObject, mn);

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

   264             if (runAnno != null) {

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

   266                 generateAnno(jc, runAnno);

   267                 append("\n    };");

   268             }

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

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

   271         }

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

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

   274         String instOfName = "$instOf_" + className;

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

   276         if (jc.isInterface()) {

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

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

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

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

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

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

   283                 }

   284             }

   285         }

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

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

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

   289             requireReference(superInterface);

   290         }

   291         append("\n    }");

   292         append("\n    if (!c.hasOwnProperty('fillInstOf')) Object.defineProperty(c, 'fillInstOf', { value: ").append(className).append("fillInstOf });");

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

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

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

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

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

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

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

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

   301         {

   302             boolean first = true;

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

   304                 if (!first) {

   305                     append(",");

   306                 }

   307                 requireReference(intrfc);

   308                 String mangledIface = mangleClassName(intrfc);

   309                 append("\n        ");

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

   311                 first = false;

   312             }

   313         }

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

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

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

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

   318         if (classAnno != null) {

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

   320             generateAnno(jc, classAnno);

   321             append("\n    };");

   322         }

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

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

   325         }

   327         if (jsResource != null) {

   328             requireResource(jsResource);

   329         }

   331         append("\n  }");

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

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

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

   335         append("\n    }");

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

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

   338             if (javaScriptOnly(onlyArr)) continue;

   339             if (!v.isStatic()) {

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

   341                     append(className).append('_').

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

   343             }

   344         }

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

   346         append("\n  }");

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

   348         append("\n};");

   350         declaredClass(jc, className);

   352 //        StringBuilder sb = new StringBuilder();

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

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

   355 //        }

   356         return "";

   357     }

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

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

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

   362             "name", "value"

   363         );

   364         if (only != null) {

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

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

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

   368             }

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

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

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

   372             }

   373             return true;

   374         }

   375         return false;

   376     }

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

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

   379         if (jsb != null) {

   380             return jsb;

   381         }

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

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

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

   385             if (defineProp) {

   386                 toInitilize.add(accessClassFalse(className(jc)) + "['" + mn + "']");

   387             } else {

   388                 toInitilize.add(accessClassFalse(className(jc)) + "." + mn);

   389             }

   390         }

   391         return mn;

   392     }

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

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

   396         if (jsb != null) {

   397             return jsb;

   398         }

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

   400         generateMethod(destObject, mn, m);

   401         return mn;

   402     }

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

   405             throws IOException {

   406         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   407         TrapDataIterator trap = m.getTrapDataIterator();

   408         final LocalsMapper lmapper =

   409                 new LocalsMapper(stackMapIterator.getArguments());

   411         boolean defineProp =

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

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

   415         if (defineProp) {

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

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

   418         } else {

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

   420         }

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

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

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

   425         if (byteCodes == null) {

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

   427                .append(jc.getClassName()).append('.')

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

   429             if (defineProp) {

   430                 append("}});");

   431             } else {

   432                 append("};");

   433             }

   434             return defineProp;

   435         }

   437         final StackMapper smapper = new StackMapper();

   439         if (!m.isStatic()) {

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

   441         }

   443         int lastStackFrame;

   444         TrapData[] previousTrap = null;

   445         boolean wide = false;

   446         boolean didBranches;

   447         if (stackMapIterator.isEmpty()) {

   448             didBranches = false;

   449             lastStackFrame = 0;

   450         } else {

   451             didBranches = true;

   452             lastStackFrame = -1;

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

   454         }

   456         int openBraces = 0;

   457         int topMostLabel = 0;

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

   459             int prev = i;

   460             outChanged = false;

   461             stackMapIterator.advanceTo(i);

   462             boolean changeInCatch = trap.advanceTo(i);

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

   464                 if (previousTrap != null) {

   465                     generateCatch(previousTrap, i, topMostLabel);

   466                     previousTrap = null;

   467                 }

   468             }

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

   470                 smapper.flush(this);

   471                 if (i != 0) {

   472                     append("    }\n");

   473                 }

   474                 if (openBraces > 64) {

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

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

   477                     }

   478                     openBraces = 1;

   479                     topMostLabel = i;

   480                 }

   482                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   486                 openBraces++;

   487                 changeInCatch = true;

   488             } else {

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

   490             }

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

   492                 append("try {");

   493                 previousTrap = trap.current();

   494             }

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

   496             switch (c) {

   497                 case opc_aload_0:

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

   499                     break;

   500                 case opc_iload_0:

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

   502                     break;

   503                 case opc_lload_0:

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

   505                     break;

   506                 case opc_fload_0:

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

   508                     break;

   509                 case opc_dload_0:

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

   511                     break;

   512                 case opc_aload_1:

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

   514                     break;

   515                 case opc_iload_1:

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

   517                     break;

   518                 case opc_lload_1:

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

   520                     break;

   521                 case opc_fload_1:

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

   523                     break;

   524                 case opc_dload_1:

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

   526                     break;

   527                 case opc_aload_2:

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

   529                     break;

   530                 case opc_iload_2:

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

   532                     break;

   533                 case opc_lload_2:

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

   535                     break;

   536                 case opc_fload_2:

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

   538                     break;

   539                 case opc_dload_2:

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

   541                     break;

   542                 case opc_aload_3:

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

   544                     break;

   545                 case opc_iload_3:

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

   547                     break;

   548                 case opc_lload_3:

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

   550                     break;

   551                 case opc_fload_3:

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

   553                     break;

   554                 case opc_dload_3:

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

   556                     break;

   557                 case opc_iload: {

   558                     ++i;

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

   560                                           : readUByte(byteCodes, i);

   561                     wide = false;

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

   563                     break;

   564                 }

   565                 case opc_lload: {

   566                     ++i;

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

   568                                           : readUByte(byteCodes, i);

   569                     wide = false;

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

   571                     break;

   572                 }

   573                 case opc_fload: {

   574                     ++i;

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

   576                                           : readUByte(byteCodes, i);

   577                     wide = false;

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

   579                     break;

   580                 }

   581                 case opc_dload: {

   582                     ++i;

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

   584                                           : readUByte(byteCodes, i);

   585                     wide = false;

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

   587                     break;

   588                 }

   589                 case opc_aload: {

   590                     ++i;

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

   592                                           : readUByte(byteCodes, i);

   593                     wide = false;

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

   595                     break;

   596                 }

   597                 case opc_istore: {

   598                     ++i;

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

   600                                           : readUByte(byteCodes, i);

   601                     wide = false;

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

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

   604                     break;

   605                 }

   606                 case opc_lstore: {

   607                     ++i;

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

   609                                           : readUByte(byteCodes, i);

   610                     wide = false;

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

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

   613                     break;

   614                 }

   615                 case opc_fstore: {

   616                     ++i;

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

   618                                           : readUByte(byteCodes, i);

   619                     wide = false;

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

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

   622                     break;

   623                 }

   624                 case opc_dstore: {

   625                     ++i;

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

   627                                           : readUByte(byteCodes, i);

   628                     wide = false;

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

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

   631                     break;

   632                 }

   633                 case opc_astore: {

   634                     ++i;

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

   636                                           : readUByte(byteCodes, i);

   637                     wide = false;

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

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

   640                     break;

   641                 }

   642                 case opc_astore_0:

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

   644                     break;

   645                 case opc_istore_0:

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

   647                     break;

   648                 case opc_lstore_0:

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

   650                     break;

   651                 case opc_fstore_0:

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

   653                     break;

   654                 case opc_dstore_0:

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

   656                     break;

   657                 case opc_astore_1:

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

   659                     break;

   660                 case opc_istore_1:

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

   662                     break;

   663                 case opc_lstore_1:

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

   665                     break;

   666                 case opc_fstore_1:

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

   668                     break;

   669                 case opc_dstore_1:

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

   671                     break;

   672                 case opc_astore_2:

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

   674                     break;

   675                 case opc_istore_2:

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

   677                     break;

   678                 case opc_lstore_2:

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

   680                     break;

   681                 case opc_fstore_2:

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

   683                     break;

   684                 case opc_dstore_2:

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

   686                     break;

   687                 case opc_astore_3:

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

   689                     break;

   690                 case opc_istore_3:

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

   692                     break;

   693                 case opc_lstore_3:

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

   695                     break;

   696                 case opc_fstore_3:

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

   698                     break;

   699                 case opc_dstore_3:

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

   701                     break;

   702                 case opc_iadd:

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

   704                     break;

   705                 case opc_ladd:

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

   707                     break;

   708                 case opc_fadd:

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

   710                     break;

   711                 case opc_dadd:

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

   713                     break;

   714                 case opc_isub:

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

   716                     break;

   717                 case opc_lsub:

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

   719                     break;

   720                 case opc_fsub:

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

   722                     break;

   723                 case opc_dsub:

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

   725                     break;

   726                 case opc_imul:

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

   728                     break;

   729                 case opc_lmul:

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

   731                     break;

   732                 case opc_fmul:

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

   734                     break;

   735                 case opc_dmul:

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

   737                     break;

   738                 case opc_idiv:

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

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

   741                     break;

   742                 case opc_ldiv:

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

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

   745                     break;

   746                 case opc_fdiv:

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

   748                     break;

   749                 case opc_ddiv:

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

   751                     break;

   752                 case opc_irem:

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

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

   755                     break;

   756                 case opc_lrem:

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

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

   759                     break;

   760                 case opc_frem:

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

   762                     break;

   763                 case opc_drem:

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

   765                     break;

   766                 case opc_iand:

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

   768                     break;

   769                 case opc_land:

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

   771                     break;

   772                 case opc_ior:

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

   774                     break;

   775                 case opc_lor:

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

   777                     break;

   778                 case opc_ixor:

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

   780                     break;

   781                 case opc_lxor:

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

   783                     break;

   784                 case opc_ineg:

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

   786                     break;

   787                 case opc_lneg:

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

   789                     break;

   790                 case opc_fneg:

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

   792                     break;

   793                 case opc_dneg:

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

   795                     break;

   796                 case opc_ishl:

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

   798                     break;

   799                 case opc_lshl:

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

   801                     break;

   802                 case opc_ishr:

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

   804                     break;

   805                 case opc_lshr:

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

   807                     break;

   808                 case opc_iushr:

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

   810                     break;

   811                 case opc_lushr:

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

   813                     break;

   814                 case opc_iinc: {

   815                     ++i;

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

   817                                              : readUByte(byteCodes, i);

   818                     ++i;

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

   820                                             : byteCodes[i];

   821                     wide = false;

   822                     if (incrBy == 1) {

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

   824                     } else {

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

   826                              lmapper.getI(varIndx),

   827                              Integer.toString(incrBy));

   828                     }

   829                     break;

   830                 }

   831                 case opc_return:

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

   833                     break;

   834                 case opc_ireturn:

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

   836                     break;

   837                 case opc_lreturn:

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

   839                     break;

   840                 case opc_freturn:

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

   842                     break;

   843                 case opc_dreturn:

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

   845                     break;

   846                 case opc_areturn:

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

   848                     break;

   849                 case opc_i2l:

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

   851                     break;

   852                 case opc_i2f:

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

   854                     break;

   855                 case opc_i2d:

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

   857                     break;

   858                 case opc_l2i:

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

   860                     break;

   861                     // max int check?

   862                 case opc_l2f:

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

   864                     break;

   865                 case opc_l2d:

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

   867                     break;

   868                 case opc_f2d:

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

   870                          smapper.getF(0));

   871                     break;

   872                 case opc_d2f:

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

   874                          smapper.getD(0));

   875                     break;

   876                 case opc_f2i:

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

   878                          smapper.getF(0));

   879                     break;

   880                 case opc_f2l:

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

   882                          smapper.getF(0));

   883                     break;

   884                 case opc_d2i:

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

   886                          smapper.getD(0));

   887                     break;

   888                 case opc_d2l:

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

   890                     break;

   891                 case opc_i2b:

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

   893                     break;

   894                 case opc_i2c:

   895                 case opc_i2s:

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

   897                     break;

   898                 case opc_aconst_null:

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

   900                     break;

   901                 case opc_iconst_m1:

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

   903                     break;

   904                 case opc_iconst_0:

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

   906                     break;

   907                 case opc_dconst_0:

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

   909                     break;

   910                 case opc_lconst_0:

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

   912                     break;

   913                 case opc_fconst_0:

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

   915                     break;

   916                 case opc_iconst_1:

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

   918                     break;

   919                 case opc_lconst_1:

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

   921                     break;

   922                 case opc_fconst_1:

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

   924                     break;

   925                 case opc_dconst_1:

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

   927                     break;

   928                 case opc_iconst_2:

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

   930                     break;

   931                 case opc_fconst_2:

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

   933                     break;

   934                 case opc_iconst_3:

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

   936                     break;

   937                 case opc_iconst_4:

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

   939                     break;

   940                 case opc_iconst_5:

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

   942                     break;

   943                 case opc_ldc: {

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

   945                     String v = encodeConstant(indx);

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

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

   948                     break;

   949                 }

   950                 case opc_ldc_w:

   951                 case opc_ldc2_w: {

   952                     int indx = readUShortArg(byteCodes, i);

   953                     i += 2;

   954                     String v = encodeConstant(indx);

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

   956                     if (type == VarType.LONG) {

   957                         final Long lv = new Long(v);

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

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

   960                         if (hi == 0) {

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

   962                         } else {

   963                             smapper.assign(this, VarType.LONG,

   964                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

   965                                     Integer.toHexString(low) + ")"

   966                             );

   967                         }

   968                     } else {

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

   970                     }

   971                     break;

   972                 }

   973                 case opc_lcmp:

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

   975                     break;

   976                 case opc_fcmpl:

   977                 case opc_fcmpg:

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

   979                     break;

   980                 case opc_dcmpl:

   981                 case opc_dcmpg:

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

   983                     break;

   984                 case opc_if_acmpeq:

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

   986                                    "===", topMostLabel);

   987                     break;

   988                 case opc_if_acmpne:

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

   990                                    "!==", topMostLabel);

   991                     break;

   992                 case opc_if_icmpeq:

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

   994                                    "==", topMostLabel);

   995                     break;

   996                 case opc_ifeq: {

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

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

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

  1000                     i += 2;

  1001                     break;

  1002                 }

  1003                 case opc_ifne: {

  1004                     int indx = i + readShortArg(byteCodes, i);

  1005                     emitIf(smapper, this, "if ((@1) != 0) ",

  1006                          smapper.popI(), i, indx, topMostLabel);

  1007                     i += 2;

  1008                     break;

  1009                 }

  1010                 case opc_iflt: {

  1011                     int indx = i + readShortArg(byteCodes, i);

  1012                     emitIf(smapper, this, "if ((@1) < 0) ",

  1013                          smapper.popI(), i, indx, topMostLabel);

  1014                     i += 2;

  1015                     break;

  1016                 }

  1017                 case opc_ifle: {

  1018                     int indx = i + readShortArg(byteCodes, i);

  1019                     emitIf(smapper, this, "if ((@1) <= 0) ",

  1020                          smapper.popI(), i, indx, topMostLabel);

  1021                     i += 2;

  1022                     break;

  1023                 }

  1024                 case opc_ifgt: {

  1025                     int indx = i + readShortArg(byteCodes, i);

  1026                     emitIf(smapper, this, "if ((@1) > 0) ",

  1027                          smapper.popI(), i, indx, topMostLabel);

  1028                     i += 2;

  1029                     break;

  1030                 }

  1031                 case opc_ifge: {

  1032                     int indx = i + readShortArg(byteCodes, i);

  1033                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1034                          smapper.popI(), i, indx, topMostLabel);

  1035                     i += 2;

  1036                     break;

  1037                 }

  1038                 case opc_ifnonnull: {

  1039                     int indx = i + readShortArg(byteCodes, i);

  1040                     emitIf(smapper, this, "if ((@1) !== null) ",

  1041                          smapper.popA(), i, indx, topMostLabel);

  1042                     i += 2;

  1043                     break;

  1044                 }

  1045                 case opc_ifnull: {

  1046                     int indx = i + readShortArg(byteCodes, i);

  1047                     emitIf(smapper, this, "if ((@1) === null) ",

  1048                          smapper.popA(), i, indx, topMostLabel);

  1049                     i += 2;

  1050                     break;

  1051                 }

  1052                 case opc_if_icmpne:

  1053                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1054                                    "!=", topMostLabel);

  1055                     break;

  1056                 case opc_if_icmplt:

  1057                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1058                                    "<", topMostLabel);

  1059                     break;

  1060                 case opc_if_icmple:

  1061                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1062                                    "<=", topMostLabel);

  1063                     break;

  1064                 case opc_if_icmpgt:

  1065                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1066                                    ">", topMostLabel);

  1067                     break;

  1068                 case opc_if_icmpge:

  1069                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1070                                    ">=", topMostLabel);

  1071                     break;

  1072                 case opc_goto: {

  1073                     smapper.flush(this);

  1074                     int indx = i + readShortArg(byteCodes, i);

  1075                     goTo(this, i, indx, topMostLabel);

  1076                     i += 2;

  1077                     break;

  1078                 }

  1079                 case opc_lookupswitch: {

  1080                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1081                     break;

  1082                 }

  1083                 case opc_tableswitch: {

  1084                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1085                     break;

  1086                 }

  1087                 case opc_invokeinterface: {

  1088                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1089                     break;

  1090                 }

  1091                 case opc_invokevirtual:

  1092                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1093                     break;

  1094                 case opc_invokespecial:

  1095                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1096                     break;

  1097                 case opc_invokestatic:

  1098                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1099                     break;

  1100                 case opc_invokedynamic: {

  1101                     int indx = readUShortArg(byteCodes, i);

  1102                     println("invoke dynamic: " + indx);

  1103                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1104                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1105                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1106                     println("  type: " + methodHandle.cpx1);

  1107                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1108                     String mcn = mangleClassName(mi[0]);

  1109                     char[] returnType = {'V'};

  1110                     StringBuilder cnt = new StringBuilder();

  1111                     String mn = findMethodName(mi, cnt, returnType);

  1112                     StringBuilder sb = new StringBuilder();

  1113                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1114                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1115                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1116                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1117                     sb.append("  mn   : ").append(mn).append("\n");

  1118                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1119                     throw new IOException(sb.toString());

  1120                     /*

  1121                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1122                     String type = jc.StringValue(nameAndType.cpx2);

  1123                     String object = accessClass(mcn) + "(false)";

  1124                     if (mn.startsWith("cons_")) {

  1125                         object += ".constructor";

  1126                     }

  1127                     append("var metHan = ");

  1128                     append(accessStaticMethod(object, mn, mi));

  1129                     append('(');

  1130                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1131                     append(lookup);

  1132                     append(", '").append(mi[1]).append("', ");

  1133                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1134                     append(methodType).append("'").append(type).append("', null)");

  1135 //                    if (numArguments > 0) {

  1136 //                        append(vars[0]);

  1137 //                        for (int j = 1; j < numArguments; ++j) {

  1138 //                            append(", ");

  1139 //                            append(vars[j]);

  1140 //                        }

  1141 //                    }

  1142                     append(");");

  1143                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1144                     i += 4;

  1145                     break;

  1146                     */

  1147                 }

  1148                 case opc_new: {

  1149                     int indx = readUShortArg(byteCodes, i);

  1150                     String ci = jc.getClassName(indx);

  1151                     emit(smapper, this, "var @1 = new @2;",

  1152                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1153                     addReference(ci);

  1154                     i += 2;

  1155                     break;

  1156                 }

  1157                 case opc_newarray:

  1158                     int atype = readUByte(byteCodes, ++i);

  1159                     generateNewArray(atype, smapper);

  1160                     break;

  1161                 case opc_anewarray: {

  1162                     int type = readUShortArg(byteCodes, i);

  1163                     i += 2;

  1164                     generateANewArray(type, smapper);

  1165                     break;

  1166                 }

  1167                 case opc_multianewarray: {

  1168                     int type = readUShortArg(byteCodes, i);

  1169                     i += 2;

  1170                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1171                     break;

  1172                 }

  1173                 case opc_arraylength:

  1174                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1175                     break;

  1176                 case opc_lastore:

  1177                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1178                          smapper.popL(), smapper.popI(), smapper.popA());

  1179                     break;

  1180                 case opc_fastore:

  1181                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1182                          smapper.popF(), smapper.popI(), smapper.popA());

  1183                     break;

  1184                 case opc_dastore:

  1185                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1186                          smapper.popD(), smapper.popI(), smapper.popA());

  1187                     break;

  1188                 case opc_aastore:

  1189                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1190                          smapper.popA(), smapper.popI(), smapper.popA());

  1191                     break;

  1192                 case opc_iastore:

  1193                 case opc_bastore:

  1194                 case opc_castore:

  1195                 case opc_sastore:

  1196                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1197                          smapper.popI(), smapper.popI(), smapper.popA());

  1198                     break;

  1199                 case opc_laload:

  1200                     smapper.replace(this, VarType.LONG, "Array.at(@2, @1)",

  1201                          smapper.popI(), smapper.getA(0));

  1202                     break;

  1203                 case opc_faload:

  1204                     smapper.replace(this, VarType.FLOAT, "Array.at(@2, @1)",

  1205                          smapper.popI(), smapper.getA(0));

  1206                     break;

  1207                 case opc_daload:

  1208                     smapper.replace(this, VarType.DOUBLE, "Array.at(@2, @1)",

  1209                          smapper.popI(), smapper.getA(0));

  1210                     break;

  1211                 case opc_aaload:

  1212                     smapper.replace(this, VarType.REFERENCE, "Array.at(@2, @1)",

  1213                          smapper.popI(), smapper.getA(0));

  1214                     break;

  1215                 case opc_iaload:

  1216                 case opc_baload:

  1217                 case opc_caload:

  1218                 case opc_saload:

  1219                     smapper.replace(this, VarType.INTEGER, "Array.at(@2, @1)",

  1220                          smapper.popI(), smapper.getA(0));

  1221                     break;

  1222                 case opc_pop:

  1223                 case opc_pop2:

  1224                     smapper.pop(1);

  1225                     debug("/* pop */");

  1226                     break;

  1227                 case opc_dup: {

  1228                     final Variable v = smapper.get(0);

  1229                     if (smapper.isDirty()) {

  1230                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1231                     } else {

  1232                         smapper.assign(this, v.getType(), v);

  1233                     }

  1234                     break;

  1235                 }

  1236                 case opc_dup2: {

  1237                     final Variable vi1 = smapper.get(0);

  1239                     if (vi1.isCategory2()) {

  1240                         emit(smapper, this, "var @1 = @2;",

  1241                              smapper.pushT(vi1.getType()), vi1);

  1242                     } else {

  1243                         final Variable vi2 = smapper.get(1);

  1244                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1245                              smapper.pushT(vi2.getType()), vi2,

  1246                              smapper.pushT(vi1.getType()), vi1);

  1247                     }

  1248                     break;

  1249                 }

  1250                 case opc_dup_x1: {

  1251                     final Variable vi1 = smapper.pop(this);

  1252                     final Variable vi2 = smapper.pop(this);

  1253                     final Variable vo3 = smapper.pushT(vi1.getType());

  1254                     final Variable vo2 = smapper.pushT(vi2.getType());

  1255                     final Variable vo1 = smapper.pushT(vi1.getType());

  1257                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1258                          vo1, vi1, vo2, vi2, vo3, vo1);

  1259                     break;

  1260                 }

  1261                 case opc_dup2_x1: {

  1262                     final Variable vi1 = smapper.pop(this);

  1263                     final Variable vi2 = smapper.pop(this);

  1265                     if (vi1.isCategory2()) {

  1266                         final Variable vo3 = smapper.pushT(vi1.getType());

  1267                         final Variable vo2 = smapper.pushT(vi2.getType());

  1268                         final Variable vo1 = smapper.pushT(vi1.getType());

  1270                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1271                              vo1, vi1, vo2, vi2, vo3, vo1);

  1272                     } else {

  1273                         final Variable vi3 = smapper.pop(this);

  1274                         final Variable vo5 = smapper.pushT(vi2.getType());

  1275                         final Variable vo4 = smapper.pushT(vi1.getType());

  1276                         final Variable vo3 = smapper.pushT(vi3.getType());

  1277                         final Variable vo2 = smapper.pushT(vi2.getType());

  1278                         final Variable vo1 = smapper.pushT(vi1.getType());

  1280                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1281                              vo1, vi1, vo2, vi2, vo3, vi3);

  1282                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1283                              vo4, vo1, vo5, vo2);

  1284                     }

  1285                     break;

  1286                 }

  1287                 case opc_dup_x2: {

  1288                     final Variable vi1 = smapper.pop(this);

  1289                     final Variable vi2 = smapper.pop(this);

  1291                     if (vi2.isCategory2()) {

  1292                         final Variable vo3 = smapper.pushT(vi1.getType());

  1293                         final Variable vo2 = smapper.pushT(vi2.getType());

  1294                         final Variable vo1 = smapper.pushT(vi1.getType());

  1296                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1297                              vo1, vi1, vo2, vi2, vo3, vo1);

  1298                     } else {

  1299                         final Variable vi3 = smapper.pop(this);

  1300                         final Variable vo4 = smapper.pushT(vi1.getType());

  1301                         final Variable vo3 = smapper.pushT(vi3.getType());

  1302                         final Variable vo2 = smapper.pushT(vi2.getType());

  1303                         final Variable vo1 = smapper.pushT(vi1.getType());

  1305                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1306                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1307                     }

  1308                     break;

  1309                 }

  1310                 case opc_dup2_x2: {

  1311                     final Variable vi1 = smapper.pop(this);

  1312                     final Variable vi2 = smapper.pop(this);

  1314                     if (vi1.isCategory2()) {

  1315                         if (vi2.isCategory2()) {

  1316                             final Variable vo3 = smapper.pushT(vi1.getType());

  1317                             final Variable vo2 = smapper.pushT(vi2.getType());

  1318                             final Variable vo1 = smapper.pushT(vi1.getType());

  1320                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1321                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1322                         } else {

  1323                             final Variable vi3 = smapper.pop(this);

  1324                             final Variable vo4 = smapper.pushT(vi1.getType());

  1325                             final Variable vo3 = smapper.pushT(vi3.getType());

  1326                             final Variable vo2 = smapper.pushT(vi2.getType());

  1327                             final Variable vo1 = smapper.pushT(vi1.getType());

  1329                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1330                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1331                         }

  1332                     } else {

  1333                         final Variable vi3 = smapper.pop(this);

  1335                         if (vi3.isCategory2()) {

  1336                             final Variable vo5 = smapper.pushT(vi2.getType());

  1337                             final Variable vo4 = smapper.pushT(vi1.getType());

  1338                             final Variable vo3 = smapper.pushT(vi3.getType());

  1339                             final Variable vo2 = smapper.pushT(vi2.getType());

  1340                             final Variable vo1 = smapper.pushT(vi1.getType());

  1342                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1343                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1344                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1345                                  vo4, vo1, vo5, vo2);

  1346                         } else {

  1347                             final Variable vi4 = smapper.pop(this);

  1348                             final Variable vo6 = smapper.pushT(vi2.getType());

  1349                             final Variable vo5 = smapper.pushT(vi1.getType());

  1350                             final Variable vo4 = smapper.pushT(vi4.getType());

  1351                             final Variable vo3 = smapper.pushT(vi3.getType());

  1352                             final Variable vo2 = smapper.pushT(vi2.getType());

  1353                             final Variable vo1 = smapper.pushT(vi1.getType());

  1355                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1356                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1357                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1358                                  vo5, vo1, vo6, vo2);

  1359                         }

  1360                     }

  1361                     break;

  1362                 }

  1363                 case opc_swap: {

  1364                     final Variable vi1 = smapper.get(0);

  1365                     final Variable vi2 = smapper.get(1);

  1367                     if (vi1.getType() == vi2.getType()) {

  1368                         final Variable tmp = smapper.pushT(vi1.getType());

  1370                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1371                              tmp, vi1, vi2);

  1372                         smapper.pop(1);

  1373                     } else {

  1374                         smapper.pop(2);

  1375                         smapper.pushT(vi1.getType());

  1376                         smapper.pushT(vi2.getType());

  1377                     }

  1378                     break;

  1379                 }

  1380                 case opc_bipush:

  1381                     smapper.assign(this, VarType.INTEGER,

  1382                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1383                     break;

  1384                 case opc_sipush:

  1385                     smapper.assign(this, VarType.INTEGER,

  1386                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1387                     );

  1388                     i += 2;

  1389                     break;

  1390                 case opc_getfield: {

  1391                     int indx = readUShortArg(byteCodes, i);

  1392                     String[] fi = jc.getFieldInfoName(indx);

  1393                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1394                     final String mangleClass = mangleClassName(fi[0]);

  1395                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1396                     smapper.replace(this, type, "@2.call(@1)",

  1397                          smapper.getA(0),

  1398                          accessField(mangleClassAccess,

  1399                                      "_" + fi[1], fi)

  1400                     );

  1401                     i += 2;

  1402                     addReference(fi[0]);

  1403                     break;

  1404                 }

  1405                 case opc_putfield: {

  1406                     int indx = readUShortArg(byteCodes, i);

  1407                     String[] fi = jc.getFieldInfoName(indx);

  1408                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1409                     final String mangleClass = mangleClassName(fi[0]);

  1410                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1411                     emit(smapper, this, "@3.call(@2, @1);",

  1412                          smapper.popT(type),

  1413                          smapper.popA(),

  1414                          accessField(mangleClassAccess,

  1415                                      "_" + fi[1], fi));

  1416                     i += 2;

  1417                     addReference(fi[0]);

  1418                     break;

  1419                 }

  1420                 case opc_getstatic: {

  1421                     int indx = readUShortArg(byteCodes, i);

  1422                     String[] fi = jc.getFieldInfoName(indx);

  1423                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1424                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1425                     String af = accessField(ac, "_" + fi[1], fi);

  1426                     smapper.assign(this, type, af + "()");

  1427                     i += 2;

  1428                     addReference(fi[0]);

  1429                     break;

  1430                 }

  1431                 case opc_putstatic: {

  1432                     int indx = readUShortArg(byteCodes, i);

  1433                     String[] fi = jc.getFieldInfoName(indx);

  1434                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1435                     emit(smapper, this, "@1._@2(@3);",

  1436                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1437                          smapper.popT(type));

  1438                     i += 2;

  1439                     addReference(fi[0]);

  1440                     break;

  1441                 }

  1442                 case opc_checkcast: {

  1443                     int indx = readUShortArg(byteCodes, i);

  1444                     generateCheckcast(indx, smapper);

  1445                     i += 2;

  1446                     break;

  1447                 }

  1448                 case opc_instanceof: {

  1449                     int indx = readUShortArg(byteCodes, i);

  1450                     generateInstanceOf(indx, smapper);

  1451                     i += 2;

  1452                     break;

  1453                 }

  1454                 case opc_athrow: {

  1455                     final CharSequence v = smapper.popA();

  1456                     smapper.clear();

  1458                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1459                          smapper.pushA(), v);

  1460                     break;

  1461                 }

  1463                 case opc_monitorenter: {

  1464                     debug("/* monitor enter */");

  1465                     smapper.popA();

  1466                     break;

  1467                 }

  1469                 case opc_monitorexit: {

  1470                     debug("/* monitor exit */");

  1471                     smapper.popA();

  1472                     break;

  1473                 }

  1475                 case opc_wide:

  1476                     wide = true;

  1477                     break;

  1479                 default: {

  1480                     wide = false;

  1481                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1482                          Integer.toString(c));

  1483                 }

  1484             }

  1485             if (debug(" //")) {

  1486                 generateByteCodeComment(prev, i, byteCodes);

  1487             }

  1488             if (outChanged) {

  1489                 append("\n");

  1490             }

  1491         }

  1492         if (previousTrap != null) {

  1493             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1494         }

  1495         if (didBranches) {

  1496             append("\n    }\n");

  1497         }

  1498         while (openBraces-- > 0) {

  1499             append('}');

  1500         }

  1501         if (defineProp) {

  1502             append("\n}});");

  1503         } else {

  1504             append("\n};");

  1505         }

  1506         return defineProp;

  1507     }

  1509     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1510         int i, final CharSequence v2, final CharSequence v1,

  1511         final String test, int topMostLabel

  1512     ) throws IOException {

  1513         mapper.flush(this);

  1514         int indx = i + readShortArg(byteCodes, i);

  1515         append("if ((").append(v1)

  1516            .append(") ").append(test).append(" (")

  1517            .append(v2).append(")) ");

  1518         goTo(this, i, indx, topMostLabel);

  1519         return i + 2;

  1520     }

  1522     private int readInt4(byte[] byteCodes, int offset) {

  1523         final int d = byteCodes[offset + 0] << 24;

  1524         final int c = byteCodes[offset + 1] << 16;

  1525         final int b = byteCodes[offset + 2] << 8;

  1526         final int a = byteCodes[offset + 3];

  1527         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1528     }

  1529     private static int readUByte(byte[] byteCodes, int offset) {

  1530         return byteCodes[offset] & 0xff;

  1531     }

  1533     private static int readUShort(byte[] byteCodes, int offset) {

  1534         return ((byteCodes[offset] & 0xff) << 8)

  1535                     | (byteCodes[offset + 1] & 0xff);

  1536     }

  1537     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1538         return readUShort(byteCodes, offsetInstruction + 1);

  1539     }

  1541     private static int readShort(byte[] byteCodes, int offset) {

  1542         int signed = byteCodes[offset];

  1543         byte b0 = (byte)signed;

  1544         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1545     }

  1546     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1547         return readShort(byteCodes, offsetInstruction + 1);

  1548     }

  1550     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1551         int i = 0;

  1552         Boolean count = null;

  1553         boolean array = false;

  1554         sig.append("__");

  1555         int firstPos = sig.length();

  1556         while (i < descriptor.length()) {

  1557             char ch = descriptor.charAt(i++);

  1558             switch (ch) {

  1559                 case '(':

  1560                     count = true;

  1561                     continue;

  1562                 case ')':

  1563                     count = false;

  1564                     continue;

  1565                 case 'B':

  1566                 case 'C':

  1567                 case 'D':

  1568                 case 'F':

  1569                 case 'I':

  1570                 case 'J':

  1571                 case 'S':

  1572                 case 'Z':

  1573                     if (count) {

  1574                         if (array) {

  1575                             sig.append("_3");

  1576                         }

  1577                         sig.append(ch);

  1578                         if (ch == 'J' || ch == 'D') {

  1579                             cnt.append('1');

  1580                         } else {

  1581                             cnt.append('0');

  1582                         }

  1583                     } else {

  1584                         sig.insert(firstPos, ch);

  1585                         if (array) {

  1586                             returnType[0] = '[';

  1587                             sig.insert(firstPos, "_3");

  1588                         } else {

  1589                             returnType[0] = ch;

  1590                         }

  1591                     }

  1592                     array = false;

  1593                     continue;

  1594                 case 'V':

  1595                     assert !count;

  1596                     returnType[0] = 'V';

  1597                     sig.insert(firstPos, 'V');

  1598                     continue;

  1599                 case 'L':

  1600                     int next = descriptor.indexOf(';', i);

  1601                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1602                     if (count) {

  1603                         if (array) {

  1604                             sig.append("_3");

  1605                         }

  1606                         sig.append(realSig);

  1607                         cnt.append('0');

  1608                     } else {

  1609                         sig.insert(firstPos, realSig);

  1610                         if (array) {

  1611                             sig.insert(firstPos, "_3");

  1612                         }

  1613                         returnType[0] = 'L';

  1614                     }

  1615                     i = next + 1;

  1616                     array = false;

  1617                     continue;

  1618                 case '[':

  1619                     array = true;

  1620                     continue;

  1621                 default:

  1622                     throw new IllegalStateException("Invalid char: " + ch);

  1623             }

  1624         }

  1625     }

  1627     static String mangleSig(String sig) {

  1628         return mangleSig(sig, 0, sig.length());

  1629     }

  1631     private static String mangleMethodName(String name) {

  1632         StringBuilder sb = new StringBuilder(name.length() * 2);

  1633         int last = name.length();

  1634         for (int i = 0; i < last; i++) {

  1635             final char ch = name.charAt(i);

  1636             switch (ch) {

  1637                 case '_': sb.append("_1"); break;

  1638                 default: sb.append(ch); break;

  1639             }

  1640         }

  1641         return sb.toString();

  1642     }

  1643     private static String mangleSig(String txt, int first, int last) {

  1644         StringBuilder sb = new StringBuilder((last - first) * 2);

  1645         for (int i = first; i < last; i++) {

  1646             final char ch = txt.charAt(i);

  1647             switch (ch) {

  1648                 case '/': sb.append('_'); break;

  1649                 case '_': sb.append("_1"); break;

  1650                 case ';': sb.append("_2"); break;

  1651                 case '[': sb.append("_3"); break;

  1652                 default:

  1653                     if (Character.isJavaIdentifierPart(ch)) {

  1654                         sb.append(ch);

  1655                     } else {

  1656                         sb.append("_0");

  1657                         String hex = Integer.toHexString(ch).toLowerCase();

  1658                         for (int m = hex.length(); m < 4; m++) {

  1659                             sb.append("0");

  1660                         }

  1661                         sb.append(hex);

  1662                     }

  1663                 break;

  1664             }

  1665         }

  1666         return sb.toString();

  1667     }

  1669     private static String mangleClassName(String name) {

  1670         return mangleSig(name);

  1671     }

  1673     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1674         StringBuilder name = new StringBuilder();

  1675         if ("<init>".equals(m.getName())) { // NOI18N

  1676             name.append("cons"); // NOI18N

  1677         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1678             name.append("class"); // NOI18N

  1679         } else {

  1680             name.append(mangleMethodName(m.getName()));

  1681         }

  1683         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1684         return name.toString();

  1685     }

  1687     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1688         StringBuilder name = new StringBuilder();

  1689         String descr = mi[2];//mi.getDescriptor();

  1690         String nm= mi[1];

  1691         if ("<init>".equals(nm)) { // NOI18N

  1692             name.append("cons"); // NOI18N

  1693         } else {

  1694             name.append(mangleMethodName(nm));

  1695         }

  1696         countArgs(descr, returnType, name, cnt);

  1697         return name.toString();

  1698     }

  1700     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1701     throws IOException {

  1702         int methodIndex = readUShortArg(byteCodes, i);

  1703         String[] mi = jc.getFieldInfoName(methodIndex);

  1704         char[] returnType = { 'V' };

  1705         StringBuilder cnt = new StringBuilder();

  1706         String mn = findMethodName(mi, cnt, returnType);

  1708         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1709         final CharSequence[] vars = new CharSequence[numArguments];

  1711         for (int j = numArguments - 1; j >= 0; --j) {

  1712             vars[j] = mapper.popValue();

  1713         }

  1715         if ((

  1716             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1717             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1718         ) || (

  1719             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1720             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1721         )) {

  1722             if (vars[1] instanceof String) {

  1723                 String field = vars[1].toString();

  1724                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1725                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1726                 }

  1727             }

  1728         }

  1729         if (

  1730             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1731             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1732         ) {

  1733             if (vars[1] instanceof String) {

  1734                 String field = vars[2].toString();

  1735                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1736                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1737                 }

  1738             }

  1739         }

  1741         if (returnType[0] != 'V') {

  1742             mapper.flush(this);

  1743             append("var ")

  1744                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1745                .append(" = ");

  1746         }

  1748         final String in = mi[0];

  1749         String mcn;

  1750         if (callbacks && (

  1751             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1752             in.equals("org/netbeans/html/boot/spi/Fn")

  1753         )) {

  1754             mcn = "java_lang_Class";

  1755         } else {

  1756             mcn = mangleClassName(in);

  1757         }

  1758         String object = accessClassFalse(mcn);

  1759         if (mn.startsWith("cons_")) {

  1760             object += ".constructor";

  1761         }

  1762         append(accessStaticMethod(object, mn, mi));

  1763         if (isStatic) {

  1764             append('(');

  1765         } else {

  1766             append(".call(");

  1767         }

  1768         if (numArguments > 0) {

  1769             append(vars[0]);

  1770             for (int j = 1; j < numArguments; ++j) {

  1771                 append(", ");

  1772                 append(vars[j]);

  1773             }

  1774         }

  1775         append(");");

  1776         i += 2;

  1777         addReference(in);

  1778         return i;

  1779     }

  1780     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1781     throws IOException {

  1782         int methodIndex = readUShortArg(byteCodes, i);

  1783         String[] mi = jc.getFieldInfoName(methodIndex);

  1784         char[] returnType = { 'V' };

  1785         StringBuilder cnt = new StringBuilder();

  1786         String mn = findMethodName(mi, cnt, returnType);

  1788         final int numArguments = cnt.length() + 1;

  1789         final CharSequence[] vars =  new CharSequence[numArguments];

  1791         for (int j = numArguments - 1; j >= 0; --j) {

  1792             vars[j] = mapper.popValue();

  1793         }

  1795         if (returnType[0] != 'V') {

  1796             mapper.flush(this);

  1797             append("var ")

  1798                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1799                .append(" = ");

  1800         }

  1802         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1803         String sep = "";

  1804         for (int j = 1; j < numArguments; ++j) {

  1805             append(sep);

  1806             append(vars[j]);

  1807             sep = ", ";

  1808         }

  1809         append(");");

  1810         i += 2;

  1811         return i;

  1812     }

  1814     private void addReference(String cn) throws IOException {

  1815         if (requireReference(cn)) {

  1816             debug(" /* needs " + cn + " */");

  1817         }

  1818     }

  1820     private void outType(String d, StringBuilder out) {

  1821         int arr = 0;

  1822         while (d.charAt(0) == '[') {

  1823             out.append('A');

  1824             d = d.substring(1);

  1825         }

  1826         if (d.charAt(0) == 'L') {

  1827             assert d.charAt(d.length() - 1) == ';';

  1828             out.append(d.replace('/', '_').substring(0, d.length() - 1));

  1829         } else {

  1830             out.append(d);

  1831         }

  1832     }

  1834     private String encodeConstant(int entryIndex) throws IOException {

  1835         String[] classRef = { null };

  1836         String s = jc.stringValue(entryIndex, classRef);

  1837         if (classRef[0] != null) {

  1838             if (classRef[0].startsWith("[")) {

  1839                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1840             } else {

  1841                 addReference(classRef[0]);

  1842                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1843             }

  1844         }

  1845         return s;

  1846     }

  1848     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1849         byte[] arr = m.findAnnotationData(true);

  1850         if (arr == null) {

  1851             return null;

  1852         }

  1853         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1854         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1855         class P extends AnnotationParser {

  1856             public P() {

  1857                 super(false, true);

  1858             }

  1860             int cnt;

  1861             String[] args = new String[30];

  1862             String body;

  1863             boolean javacall;

  1864             boolean html4j;

  1866             @Override

  1867             protected void visitAttr(String type, String attr, String at, String value) {

  1868                 if (type.equals(jvmType)) {

  1869                     if ("body".equals(attr)) {

  1870                         body = value;

  1871                     } else if ("args".equals(attr)) {

  1872                         args[cnt++] = value;

  1873                     } else {

  1874                         throw new IllegalArgumentException(attr);

  1875                     }

  1876                 }

  1877                 if (type.equals(htmlType)) {

  1878                     html4j = true;

  1879                     if ("body".equals(attr)) {

  1880                         body = value;

  1881                     } else if ("args".equals(attr)) {

  1882                         args[cnt++] = value;

  1883                     } else if ("javacall".equals(attr)) {

  1884                         javacall = "1".equals(value);

  1885                     } else if ("wait4js".equals(attr)) {

  1886                         // ignore, we always invoke synchronously

  1887                     } else {

  1888                         throw new IllegalArgumentException(attr);

  1889                     }

  1890                 }

  1891             }

  1892         }

  1893         P p = new P();

  1894         p.parse(arr, jc);

  1895         if (p.body == null) {

  1896             return null;

  1897         }

  1898         StringBuilder cnt = new StringBuilder();

  1899         final String mn = findMethodName(m, cnt);

  1900         append("m = ").append(destObject).append(".").append(mn);

  1901         append(" = function(");

  1902         String space = "";

  1903         int index = 0;

  1904         StringBuilder toValue = new StringBuilder();

  1905         for (int i = 0; i < cnt.length(); i++) {

  1906             append(space);

  1907             space = outputArg(this, p.args, index);

  1908             if (p.html4j && space.length() > 0) {

  1909                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1910                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1911                     append(p.args[index]).append(");");

  1912             }

  1913             index++;

  1914         }

  1915         append(") {").append("\n");

  1916         append(toValue.toString());

  1917         if (p.javacall) {

  1918             int lastSlash = jc.getClassName().lastIndexOf('/');

  1919             final String pkg = jc.getClassName().substring(0, lastSlash);

  1920             append(mangleCallbacks(pkg, p.body));

  1921             requireReference(pkg + "/$JsCallbacks$");

  1922         } else {

  1923             append(p.body);

  1924         }

  1925         append("\n}\n");

  1926         return mn;

  1927     }

  1929     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1930         StringBuilder sb = new StringBuilder();

  1931         int pos = 0;

  1932         for (;;) {

  1933             int next = body.indexOf(".@", pos);

  1934             if (next == -1) {

  1935                 sb.append(body.substring(pos));

  1936                 body = sb.toString();

  1937                 break;

  1938             }

  1939             int ident = next;

  1940             while (ident > 0) {

  1941                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  1942                     ident++;

  1943                     break;

  1944                 }

  1945             }

  1946             String refId = body.substring(ident, next);

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

  1950             int sigBeg = body.indexOf('(', next);

  1951             int sigEnd = body.indexOf(')', sigBeg);

  1952             int colon4 = body.indexOf("::", next);

  1953             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1954                 throw new IllegalStateException("Malformed body " + body);

  1955             }

  1956             String fqn = body.substring(next + 2, colon4);

  1957             String method = body.substring(colon4 + 2, sigBeg);

  1958             String params = body.substring(sigBeg, sigEnd + 1);

  1960             int paramBeg = body.indexOf('(', sigEnd + 1);

  1962             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  1963             sb.append(mangleJsCallbacks(fqn, method, params, false));

  1964             sb.append("(").append(refId);

  1965             if (body.charAt(paramBeg + 1) != ')') {

  1966                 sb.append(",");

  1967             }

  1968             pos = paramBeg + 1;

  1969         }

  1970         sb = null;

  1971         pos = 0;

  1972         for (;;) {

  1973             int next = body.indexOf("@", pos);

  1974             if (next == -1) {

  1975                 if (sb == null) {

  1976                     return body;

  1977                 }

  1978                 sb.append(body.substring(pos));

  1979                 return sb;

  1980             }

  1981             if (sb == null) {

  1982                 sb = new StringBuilder();

  1983             }

  1985             sb.append(body.substring(pos, next));

  1987             int sigBeg = body.indexOf('(', next);

  1988             int sigEnd = body.indexOf(')', sigBeg);

  1989             int colon4 = body.indexOf("::", next);

  1990             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1991                 throw new IllegalStateException("Malformed body " + body);

  1992             }

  1993             String fqn = body.substring(next + 1, colon4);

  1994             String method = body.substring(colon4 + 2, sigBeg);

  1995             String params = body.substring(sigBeg, sigEnd + 1);

  1997             int paramBeg = body.indexOf('(', sigEnd + 1);

  1999             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  2000             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2001             sb.append("(");

  2002             pos = paramBeg + 1;

  2003         }

  2004     }

  2006     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2007         if (params.startsWith("(")) {

  2008             params = params.substring(1);

  2009         }

  2010         if (params.endsWith(")")) {

  2011             params = params.substring(0, params.length() - 1);

  2012         }

  2013         StringBuilder sb = new StringBuilder();

  2014         final String fqnu = fqn.replace('.', '_');

  2015         final String rfqn = mangleClassName(fqnu);

  2016         final String rm = mangleMethodName(method);

  2017         final String srp;

  2018         {

  2019             StringBuilder pb = new StringBuilder();

  2020             int len = params.length();

  2021             int indx = 0;

  2022             while (indx < len) {

  2023                 char ch = params.charAt(indx);

  2024                 if (ch == '[' || ch == 'L') {

  2025                     int column = params.indexOf(';', indx) + 1;

  2026                     if (column > indx) {

  2027                         String real = params.substring(indx, column);

  2028                         if ("Ljava/lang/String;".equals(real)) {

  2029                             pb.append("Ljava/lang/String;");

  2030                             indx = column;

  2031                             continue;

  2032                         }

  2033                     }

  2034                     pb.append("Ljava/lang/Object;");

  2035                     indx = column;

  2036                 } else {

  2037                     pb.append(ch);

  2038                     indx++;

  2039                 }

  2040             }

  2041             srp = mangleSig(pb.toString());

  2042         }

  2043         final String rp = mangleSig(params);

  2044         final String mrp = mangleMethodName(rp);

  2045         sb.append(rfqn).append("$").append(rm).

  2046             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2047         if (!isStatic) {

  2048             sb.append('L').append(fqnu).append("_2");

  2049         }

  2050         sb.append(srp);

  2051         return sb.toString();

  2052     }

  2054     private static String className(ClassData jc) {

  2055         //return jc.getName().getInternalName().replace('/', '_');

  2056         return mangleClassName(jc.getClassName());

  2057     }

  2059     private static String[] findAnnotation(

  2060         byte[] arr, ClassData cd, final String className,

  2061         final String... attrNames

  2062     ) throws IOException {

  2063         if (arr == null) {

  2064             return null;

  2065         }

  2066         final String[] values = new String[attrNames.length];

  2067         final boolean[] found = { false };

  2068         final String jvmType = "L" + className.replace('.', '/') + ";";

  2069         AnnotationParser ap = new AnnotationParser(false, true) {

  2070             @Override

  2071             protected void visitAttr(String type, String attr, String at, String value) {

  2072                 if (type.equals(jvmType)) {

  2073                     found[0] = true;

  2074                     for (int i = 0; i < attrNames.length; i++) {

  2075                         if (attrNames[i].equals(attr)) {

  2076                             values[i] = value;

  2077                         }

  2078                     }

  2079                 }

  2080             }

  2082         };

  2083         ap.parse(arr, cd);

  2084         return found[0] ? values : null;

  2085     }

  2087     private CharSequence initField(FieldData v) {

  2088         final String is = v.getInternalSig();

  2089         if (is.length() == 1) {

  2090             switch (is.charAt(0)) {

  2091                 case 'S':

  2092                 case 'J':

  2093                 case 'B':

  2094                 case 'Z':

  2095                 case 'C':

  2096                 case 'I': return " = 0;";

  2097                 case 'F':

  2098                 case 'D': return " = 0.0;";

  2099                 default:

  2100                     throw new IllegalStateException(is);

  2101             }

  2102         }

  2103         return " = null;";

  2104     }

  2106     private void generateAnno(ClassData cd, byte[] data) throws IOException {

  2107         AnnotationParser ap = new AnnotationParser(true, false) {

  2108             int[] cnt = new int[32];

  2109             int depth;

  2111             @Override

  2112             protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2113                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2114                 requireReference(slashType);

  2116                 if (cnt[depth]++ > 0) {

  2117                     append(",");

  2118                 }

  2119                 if (top) {

  2120                     append('"').append(attrType).append("\" : ");

  2121                 }

  2122                 append("{\n");

  2123                 cnt[++depth] = 0;

  2124             }

  2126             @Override

  2127             protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2128                 append("\n}\n");

  2129                 depth--;

  2130             }

  2132             @Override

  2133             protected void visitValueStart(String attrName, char type) throws IOException {

  2134                 if (cnt[depth]++ > 0) {

  2135                     append(",\n");

  2136                 }

  2137                 cnt[++depth] = 0;

  2138                 if (attrName != null) {

  2139                     append('"').append(attrName).append("\" : ");

  2140                 }

  2141                 if (type == '[') {

  2142                     append("[");

  2143                 }

  2144             }

  2146             @Override

  2147             protected void visitValueEnd(String attrName, char type) throws IOException {

  2148                 if (type == '[') {

  2149                     append("]");

  2150                 }

  2151                 depth--;

  2152             }

  2154             @Override

  2155             protected void visitAttr(String type, String attr, String attrType, String value)

  2156             throws IOException {

  2157                 if (attr == null && value == null) {

  2158                     return;

  2159                 }

  2160                 append(value);

  2161             }

  2163             @Override

  2164             protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2165             throws IOException {

  2166                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2167                 requireReference(slashType);

  2169                 final String cn = mangleClassName(slashType);

  2170                 append(accessClassFalse(cn))

  2171                    .append("['valueOf__L").

  2172                     append(cn).

  2173                     append("_2Ljava_lang_String_2']('").

  2174                     append(value).

  2175                     append("')");

  2176             }

  2177         };

  2178         ap.parse(data, cd);

  2179     }

  2181     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2182         final String name = args[indx];

  2183         if (name == null) {

  2184             return "";

  2185         }

  2186         if (name.contains(",")) {

  2187             throw new IOException("Wrong parameter with ',': " + name);

  2188         }

  2189         out.append(name);

  2190         return ",";

  2191     }

  2193     final void emitNoFlush(

  2194         StackMapper sm,

  2195         final String format, final CharSequence... params

  2196     ) throws IOException {

  2197         emitImpl(this, format, params);

  2198     }

  2199     static final void emit(

  2200         StackMapper sm,

  2201         final Appendable out,

  2202         final String format, final CharSequence... params

  2203     ) throws IOException {

  2204         sm.flush(out);

  2205         emitImpl(out, format, params);

  2206     }

  2207     static void emitImpl(final Appendable out,

  2208                              final String format,

  2209                              final CharSequence... params) throws IOException {

  2210         final int length = format.length();

  2212         int processed = 0;

  2213         int paramOffset = format.indexOf('@');

  2214         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2215             final char paramChar = format.charAt(paramOffset + 1);

  2216             if ((paramChar >= '1') && (paramChar <= '9')) {

  2217                 final int paramIndex = paramChar - '0' - 1;

  2219                 out.append(format, processed, paramOffset);

  2220                 out.append(params[paramIndex]);

  2222                 ++paramOffset;

  2223                 processed = paramOffset + 1;

  2224             }

  2226             paramOffset = format.indexOf('@', paramOffset + 1);

  2227         }

  2229         out.append(format, processed, length);

  2230     }

  2232     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2233         append("} catch (e) {\n");

  2234         int finallyPC = -1;

  2235         for (TrapData e : traps) {

  2236             if (e == null) {

  2237                 break;

  2238             }

  2239             if (e.catch_cpx != 0) { //not finally

  2240                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2241                 addReference(classInternalName);

  2242                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2243                 append("if (e['$instOf_" + classInternalName.replace('/', '_') + "']) {");

  2244                 append("var stA0 = e;");

  2245                 goTo(this, current, e.handler_pc, topMostLabel);

  2246                 append("}\n");

  2247             } else {

  2248                 finallyPC = e.handler_pc;

  2249             }

  2250         }

  2251         if (finallyPC == -1) {

  2252             append("throw e;");

  2253         } else {

  2254             append("var stA0 = e;");

  2255             goTo(this, current, finallyPC, topMostLabel);

  2256         }

  2257         append("\n}");

  2258     }

  2260     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2261         if (to < current) {

  2262             if (canBack < to) {

  2263                 out.append("{ gt = 0; continue X_" + to + "; }");

  2264             } else {

  2265                 out.append("{ gt = " + to + "; continue X_0; }");

  2266             }

  2267         } else {

  2268             out.append("{ gt = " + to + "; break IF; }");

  2269         }

  2270     }

  2272     private static void emitIf(

  2273         StackMapper sm,

  2274         Appendable out, String pattern,

  2275         CharSequence param,

  2276         int current, int to, int canBack

  2277     ) throws IOException {

  2278         sm.flush(out);

  2279         emitImpl(out, pattern, param);

  2280         goTo(out, current, to, canBack);

  2281     }

  2283     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2284         String jvmType;

  2285         switch (atype) {

  2286             case 4: jvmType = "[Z"; break;

  2287             case 5: jvmType = "[C"; break;

  2288             case 6: jvmType = "[F"; break;

  2289             case 7: jvmType = "[D"; break;

  2290             case 8: jvmType = "[B"; break;

  2291             case 9: jvmType = "[S"; break;

  2292             case 10: jvmType = "[I"; break;

  2293             case 11: jvmType = "[J"; break;

  2294             default: throw new IllegalStateException("Array type: " + atype);

  2295         }

  2296         emit(smapper, this,

  2297             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2298              smapper.popI(), smapper.pushA(), jvmType);

  2299     }

  2301     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2302         String typeName = jc.getClassName(type);

  2303         String ref = "null";

  2304         if (typeName.startsWith("[")) {

  2305             typeName = "'[" + typeName + "'";

  2306         } else {

  2307             ref = "vm." + mangleClassName(typeName);

  2308             typeName = "'[L" + typeName + ";'";

  2309         }

  2310         emit(smapper, this,

  2311             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2312              smapper.popI(), smapper.pushA(), typeName, ref);

  2313     }

  2315     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2316         String typeName = jc.getClassName(type);

  2317         int dim = readUByte(byteCodes, ++i);

  2318         StringBuilder dims = new StringBuilder();

  2319         dims.append('[');

  2320         for (int d = 0; d < dim; d++) {

  2321             if (d != 0) {

  2322                 dims.insert(1, ",");

  2323             }

  2324             dims.insert(1, smapper.popI());

  2325         }

  2326         dims.append(']');

  2327         String fn = "null";

  2328         if (typeName.charAt(dim) == 'L') {

  2329             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2330         }

  2331         emit(smapper, this,

  2332             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2333              dims.toString(), smapper.pushA(), typeName, fn

  2334         );

  2335         return i;

  2336     }

  2338     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2339         int table = i / 4 * 4 + 4;

  2340         int dflt = i + readInt4(byteCodes, table);

  2341         table += 4;

  2342         int low = readInt4(byteCodes, table);

  2343         table += 4;

  2344         int high = readInt4(byteCodes, table);

  2345         table += 4;

  2346         final CharSequence swVar = smapper.popValue();

  2347         smapper.flush(this);

  2348         append("switch (").append(swVar).append(") {\n");

  2349         while (low <= high) {

  2350             int offset = i + readInt4(byteCodes, table);

  2351             table += 4;

  2352             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2353             low++;

  2354         }

  2355         append("  default: ");

  2356         goTo(this, i, dflt, topMostLabel);

  2357         append("\n}");

  2358         i = table - 1;

  2359         return i;

  2360     }

  2362     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2363         int table = i / 4 * 4 + 4;

  2364         int dflt = i + readInt4(byteCodes, table);

  2365         table += 4;

  2366         int n = readInt4(byteCodes, table);

  2367         table += 4;

  2368         final CharSequence swVar = smapper.popValue();

  2369         smapper.flush(this);

  2370         append("switch (").append(swVar).append(") {\n");

  2371         while (n-- > 0) {

  2372             int cnstnt = readInt4(byteCodes, table);

  2373             table += 4;

  2374             int offset = i + readInt4(byteCodes, table);

  2375             table += 4;

  2376             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2377         }

  2378         append("  default: ");

  2379         goTo(this, i, dflt, topMostLabel);

  2380         append("\n}");

  2381         i = table - 1;

  2382         return i;

  2383     }

  2385     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2386         String type = jc.getClassName(indx);

  2387         if (!type.startsWith("[")) {

  2388             emit(smapper, this,

  2389                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2390                  smapper.popA(), smapper.pushI(),

  2391                  type.replace('/', '_'));

  2392         } else {

  2393             int cnt = 0;

  2394             while (type.charAt(cnt) == '[') {

  2395                 cnt++;

  2396             }

  2397             if (type.charAt(cnt) == 'L') {

  2398                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2399                 emit(smapper, this,

  2400                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2401                     smapper.popA(), smapper.pushI(),

  2402                     type, "" + cnt

  2403                 );

  2404             } else {

  2405                 emit(smapper, this,

  2406                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2407                     smapper.popA(), smapper.pushI(), type

  2408                 );

  2409             }

  2410         }

  2411     }

  2413     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2414         String type = jc.getClassName(indx);

  2415         if (!type.startsWith("[")) {

  2416             emitNoFlush(smapper,

  2417                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2418                  smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));

  2419         } else {

  2420             int cnt = 0;

  2421             while (type.charAt(cnt) == '[') {

  2422                 cnt++;

  2423             }

  2424             if (type.charAt(cnt) == 'L') {

  2425                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2426                 emitNoFlush(smapper,

  2427                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2428                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2429                 );

  2430             } else {

  2431                 emitNoFlush(smapper,

  2432                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2433                      smapper.getT(0, VarType.REFERENCE, false), type

  2434                 );

  2435             }

  2436         }

  2437     }

  2439     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2440         for (int j = prev; j <= i; j++) {

  2441             append(" ");

  2442             final int cc = readUByte(byteCodes, j);

  2443             append(Integer.toString(cc));

  2444         }

  2445     }

  2447     @JavaScriptBody(args = "msg", body = "")

  2448     private static void println(String msg) {

  2449         System.err.println(msg);

  2450     }

  2451 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Fri, 27 Feb 2015 12:06:58 +0100
changeset 1796	136787ac00d3
parent 1795	3c23f0cebd32
child 1800	65cab8539582
permissions	-rw-r--r--