hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@33ef5fe79475

     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 final StringArray classRefs = new StringArray();

    33     private boolean outChanged;

    34     private boolean callbacks;

    36     protected ByteCodeToJavaScript(Appendable out) {

    37         this.out = out;

    38     }

    40     @Override

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

    42         out.append(csq);

    43         outChanged = true;

    44         return this;

    45     }

    47     @Override

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

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

    50         outChanged = true;

    51         return this;

    52     }

    54     @Override

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

    56         out.append(c);

    57         outChanged = true;

    58         return this;

    59     }

    61     /* Collects additional required resources.

    62      *

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

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

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

    66      */

    67     protected abstract boolean requireReference(String internalClassName);

    69     /*

    70      * @param resourcePath name of resources to read

    71      */

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

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

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

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

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

    79      *

    80      * @param className suggested name of the class

    81      */

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

    83         return className + " = ";

    84     }

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

    86         return classOperation;

    87     }

    89     final String accessClassFalse(String classOperation) {

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

    91             return "c";

    92         }

    93         classRefs.addIfMissing(classOperation);

    94         return "(refs_" + classOperation + " || (refs_" + classOperation + " = " + accessClass(classOperation) + "(false)))";

    95     }

    97     protected String accessField(String object, String mangledName,

    98                                  String[] fieldInfoName) throws IOException {

    99         return object + "." + mangledName;

   100     }

   102     protected String accessStaticMethod(

   103                              String object,

   104                              String mangledName,

   105                              String[] fieldInfoName) throws IOException {

   106         return object + "." + mangledName;

   107     }

   109     protected String accessVirtualMethod(

   110             String object,

   111             String mangledName,

   112             String[] fieldInfoName,

   113             int params

   114     ) throws IOException {

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

   116     }

   118     protected void declaredClass(ClassData classData, String mangledName)

   119             throws IOException {

   120     }

   122     protected void declaredField(FieldData fieldData,

   123                                  String destObject,

   124                                  String mangledName) throws IOException {

   125     }

   127     protected void declaredMethod(MethodData methodData,

   128                                   String destObject,

   129                                   String mangledName) throws IOException {

   130     }

   132     /** Prints out a debug message.

   133      *

   134      * @param msg the message

   135      * @return true if the message has been printed

   136      * @throws IOException

   137      */

   138     boolean debug(String msg) throws IOException {

   139         append(msg);

   140         return true;

   141     }

   143     /**

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

   145      *

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

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

   148      *

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

   150      */

   152     public String compile(InputStream classFile) throws IOException {

   153         return compile(new ClassData(classFile));

   154     }

   156     protected String compile(ClassData classData) throws IOException {

   157         this.jc = classData;

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

   159         try {

   160             return compileImpl(cn);

   161         } catch (IOException ex) {

   162             throw new IOException("Cannot compile " + cn + ":", ex);

   163         }

   164     }

   166     private String compileImpl(final String cn) throws IOException {

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

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

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

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

   171             );

   172         }

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

   174         {

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

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

   177                 "resource", "processByteCode"

   178             );

   179             if (arr != null) {

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

   181                     requireScript(arr[0]);

   182                 }

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

   184                     return null;

   185                 }

   186             }

   187         }

   188         final String jsResource;

   189         {

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

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

   192                 "value"

   193             );

   194             if (arr != null) {

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

   196                     jsResource = arr[0];

   197                 } else {

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

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

   200                 }

   201             } else {

   202                 jsResource = null;

   203             }

   204         }

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

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

   207             "container", "prototype"

   208         );

   209         StringArray toInitilize = new StringArray();

   210         final String className = className(jc);

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

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

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

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

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

   216         if (proto == null) {

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

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

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

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

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

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

   223         } else {

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

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

   226                 proto[0] = "p";

   227             }

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

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

   230         }

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

   232             if (v.isStatic()) {

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

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

   235                         continue;

   236                     }

   237                 }

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

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

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

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

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

   243             } else {

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

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

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

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

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

   249                     .append("; };");

   250             }

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

   253         }

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

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

   256             if (javaScriptOnly(onlyArr)) continue;

   257             String destObject;

   258             String mn;

   259             append("\n    ");

   260             if (m.isStatic()) {

   261                 destObject = "c";

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

   263             } else {

   264                 if (m.isConstructor()) {

   265                     destObject = "CLS";

   266                     mn = generateInstanceMethod(destObject, m);

   267                 } else {

   268                     destObject = "c";

   269                     mn = generateInstanceMethod(destObject, m);

   270                 }

   271             }

   272             declaredMethod(m, destObject, mn);

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

   274             if (runAnno != null) {

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

   276                 generateAnno(jc, runAnno);

   277                 append("\n    };");

   278             }

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

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

   281         }

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

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

   284         String instOfName = "$instOf_" + className;

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

   286         if (jc.isInterface()) {

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

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

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

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

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

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

   293                 }

   294             }

   295         }

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

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

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

   299             requireReference(superInterface);

   300         }

   301         append("\n    }");

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

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

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

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

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

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

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

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

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

   311         {

   312             boolean first = true;

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

   314                 if (!first) {

   315                     append(",");

   316                 }

   317                 requireReference(intrfc);

   318                 String mangledIface = mangleClassName(intrfc);

   319                 append("\n        ");

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

   321                 first = false;

   322             }

   323         }

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

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

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

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

   328         if (classAnno != null) {

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

   330             generateAnno(jc, classAnno);

   331             append("\n    };");

   332         }

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

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

   335         }

   336         for (String ref : classRefs.toArray()) {

   337             append("\n    var refs_").append(ref).append(";");

   338         }

   339         classRefs.clear();

   341         if (jsResource != null) {

   342             requireResource(jsResource);

   343         }

   345         append("\n  }");

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

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

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

   349         append("\n    }");

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

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

   352             if (javaScriptOnly(onlyArr)) continue;

   353             if (!v.isStatic()) {

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

   355                     append(className).append('_').

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

   357             }

   358         }

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

   360         append("\n  }");

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

   362         append("\n};");

   364         declaredClass(jc, className);

   366 //        StringBuilder sb = new StringBuilder();

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

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

   369 //        }

   370         return "";

   371     }

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

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

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

   376             "name", "value"

   377         );

   378         if (only != null) {

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

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

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

   382             }

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

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

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

   386             }

   387             return true;

   388         }

   389         return false;

   390     }

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

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

   393         if (jsb != null) {

   394             return jsb;

   395         }

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

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

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

   399             if (defineProp) {

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

   401             } else {

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

   403             }

   404         }

   405         return mn;

   406     }

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

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

   410         if (jsb != null) {

   411             return jsb;

   412         }

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

   414         generateMethod(destObject, mn, m);

   415         return mn;

   416     }

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

   419             throws IOException {

   420         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   421         TrapDataIterator trap = m.getTrapDataIterator();

   422         final LocalsMapper lmapper =

   423                 new LocalsMapper(stackMapIterator.getArguments());

   425         boolean defineProp =

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

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

   429         if (defineProp) {

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

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

   432         } else {

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

   434         }

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

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

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

   439         if (byteCodes == null) {

   440             if (debug("  throw 'no code found for ")) {

   441                this

   442                .append(jc.getClassName()).append('.')

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

   444             }

   445             if (defineProp) {

   446                 append("}});");

   447             } else {

   448                 append("};");

   449             }

   450             return defineProp;

   451         }

   453         final StackMapper smapper = new StackMapper();

   455         if (!m.isStatic()) {

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

   457         }

   459         int lastStackFrame;

   460         TrapData[] previousTrap = null;

   461         boolean wide = false;

   462         boolean didBranches;

   463         if (stackMapIterator.isEmpty()) {

   464             didBranches = false;

   465             lastStackFrame = 0;

   466         } else {

   467             didBranches = true;

   468             lastStackFrame = -1;

   469             out.append("\n  var gt = 0;\n  for(;;) switch(gt) {\n");

   470         }

   472         int topMostLabel = 0;

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

   474             int prev = i;

   475             outChanged = false;

   476             stackMapIterator.advanceTo(i);

   477             boolean changeInCatch = trap.advanceTo(i);

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

   479                 if (previousTrap != null) {

   480                     generateCatch(previousTrap, i, topMostLabel);

   481                     previousTrap = null;

   482                 }

   483             }

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

   485                 smapper.flush(this);

   486                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

   489                 out.append("    case " + i).append(": ");

   490                 changeInCatch = true;

   491             } else {

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

   493             }

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

   495                 append("try {");

   496                 previousTrap = trap.current();

   497             }

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

   499             switch (c) {

   500                 case opc_aload_0:

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

   502                     break;

   503                 case opc_iload_0:

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

   505                     break;

   506                 case opc_lload_0:

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

   508                     break;

   509                 case opc_fload_0:

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

   511                     break;

   512                 case opc_dload_0:

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

   514                     break;

   515                 case opc_aload_1:

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

   517                     break;

   518                 case opc_iload_1:

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

   520                     break;

   521                 case opc_lload_1:

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

   523                     break;

   524                 case opc_fload_1:

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

   526                     break;

   527                 case opc_dload_1:

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

   529                     break;

   530                 case opc_aload_2:

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

   532                     break;

   533                 case opc_iload_2:

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

   535                     break;

   536                 case opc_lload_2:

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

   538                     break;

   539                 case opc_fload_2:

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

   541                     break;

   542                 case opc_dload_2:

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

   544                     break;

   545                 case opc_aload_3:

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

   547                     break;

   548                 case opc_iload_3:

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

   550                     break;

   551                 case opc_lload_3:

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

   553                     break;

   554                 case opc_fload_3:

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

   556                     break;

   557                 case opc_dload_3:

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

   559                     break;

   560                 case opc_iload: {

   561                     ++i;

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

   563                                           : readUByte(byteCodes, i);

   564                     wide = false;

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

   566                     break;

   567                 }

   568                 case opc_lload: {

   569                     ++i;

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

   571                                           : readUByte(byteCodes, i);

   572                     wide = false;

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

   574                     break;

   575                 }

   576                 case opc_fload: {

   577                     ++i;

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

   579                                           : readUByte(byteCodes, i);

   580                     wide = false;

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

   582                     break;

   583                 }

   584                 case opc_dload: {

   585                     ++i;

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

   587                                           : readUByte(byteCodes, i);

   588                     wide = false;

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

   590                     break;

   591                 }

   592                 case opc_aload: {

   593                     ++i;

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

   595                                           : readUByte(byteCodes, i);

   596                     wide = false;

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

   598                     break;

   599                 }

   600                 case opc_istore: {

   601                     ++i;

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

   603                                           : readUByte(byteCodes, i);

   604                     wide = false;

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

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

   607                     break;

   608                 }

   609                 case opc_lstore: {

   610                     ++i;

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

   612                                           : readUByte(byteCodes, i);

   613                     wide = false;

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

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

   616                     break;

   617                 }

   618                 case opc_fstore: {

   619                     ++i;

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

   621                                           : readUByte(byteCodes, i);

   622                     wide = false;

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

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

   625                     break;

   626                 }

   627                 case opc_dstore: {

   628                     ++i;

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

   630                                           : readUByte(byteCodes, i);

   631                     wide = false;

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

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

   634                     break;

   635                 }

   636                 case opc_astore: {

   637                     ++i;

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

   639                                           : readUByte(byteCodes, i);

   640                     wide = false;

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

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

   643                     break;

   644                 }

   645                 case opc_astore_0:

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

   647                     break;

   648                 case opc_istore_0:

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

   650                     break;

   651                 case opc_lstore_0:

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

   653                     break;

   654                 case opc_fstore_0:

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

   656                     break;

   657                 case opc_dstore_0:

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

   659                     break;

   660                 case opc_astore_1:

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

   662                     break;

   663                 case opc_istore_1:

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

   665                     break;

   666                 case opc_lstore_1:

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

   668                     break;

   669                 case opc_fstore_1:

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

   671                     break;

   672                 case opc_dstore_1:

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

   674                     break;

   675                 case opc_astore_2:

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

   677                     break;

   678                 case opc_istore_2:

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

   680                     break;

   681                 case opc_lstore_2:

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

   683                     break;

   684                 case opc_fstore_2:

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

   686                     break;

   687                 case opc_dstore_2:

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

   689                     break;

   690                 case opc_astore_3:

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

   692                     break;

   693                 case opc_istore_3:

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

   695                     break;

   696                 case opc_lstore_3:

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

   698                     break;

   699                 case opc_fstore_3:

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

   701                     break;

   702                 case opc_dstore_3:

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

   704                     break;

   705                 case opc_iadd:

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

   707                     break;

   708                 case opc_ladd:

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

   710                     break;

   711                 case opc_fadd:

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

   713                     break;

   714                 case opc_dadd:

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

   716                     break;

   717                 case opc_isub:

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

   719                     break;

   720                 case opc_lsub:

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

   722                     break;

   723                 case opc_fsub:

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

   725                     break;

   726                 case opc_dsub:

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

   728                     break;

   729                 case opc_imul:

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

   731                     break;

   732                 case opc_lmul:

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

   734                     break;

   735                 case opc_fmul:

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

   737                     break;

   738                 case opc_dmul:

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

   740                     break;

   741                 case opc_idiv:

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

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

   744                     break;

   745                 case opc_ldiv:

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

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

   748                     break;

   749                 case opc_fdiv:

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

   751                     break;

   752                 case opc_ddiv:

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

   754                     break;

   755                 case opc_irem:

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

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

   758                     break;

   759                 case opc_lrem:

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

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

   762                     break;

   763                 case opc_frem:

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

   765                     break;

   766                 case opc_drem:

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

   768                     break;

   769                 case opc_iand:

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

   771                     break;

   772                 case opc_land:

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

   774                     break;

   775                 case opc_ior:

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

   777                     break;

   778                 case opc_lor:

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

   780                     break;

   781                 case opc_ixor:

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

   783                     break;

   784                 case opc_lxor:

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

   786                     break;

   787                 case opc_ineg:

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

   789                     break;

   790                 case opc_lneg:

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

   792                     break;

   793                 case opc_fneg:

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

   795                     break;

   796                 case opc_dneg:

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

   798                     break;

   799                 case opc_ishl:

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

   801                     break;

   802                 case opc_lshl:

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

   804                     break;

   805                 case opc_ishr:

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

   807                     break;

   808                 case opc_lshr:

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

   810                     break;

   811                 case opc_iushr:

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

   813                     break;

   814                 case opc_lushr:

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

   816                     break;

   817                 case opc_iinc: {

   818                     ++i;

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

   820                                              : readUByte(byteCodes, i);

   821                     ++i;

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

   823                                             : byteCodes[i];

   824                     wide = false;

   825                     if (incrBy == 1) {

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

   827                     } else {

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

   829                              lmapper.getI(varIndx),

   830                              Integer.toString(incrBy));

   831                     }

   832                     break;

   833                 }

   834                 case opc_return:

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

   836                     break;

   837                 case opc_ireturn:

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

   839                     break;

   840                 case opc_lreturn:

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

   842                     break;

   843                 case opc_freturn:

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

   845                     break;

   846                 case opc_dreturn:

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

   848                     break;

   849                 case opc_areturn:

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

   851                     break;

   852                 case opc_i2l:

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

   854                     break;

   855                 case opc_i2f:

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

   857                     break;

   858                 case opc_i2d:

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

   860                     break;

   861                 case opc_l2i:

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

   863                     break;

   864                     // max int check?

   865                 case opc_l2f:

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

   867                     break;

   868                 case opc_l2d:

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

   870                     break;

   871                 case opc_f2d:

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

   873                          smapper.getF(0));

   874                     break;

   875                 case opc_d2f:

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

   877                          smapper.getD(0));

   878                     break;

   879                 case opc_f2i:

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

   881                          smapper.getF(0));

   882                     break;

   883                 case opc_f2l:

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

   885                          smapper.getF(0));

   886                     break;

   887                 case opc_d2i:

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

   889                          smapper.getD(0));

   890                     break;

   891                 case opc_d2l:

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

   893                     break;

   894                 case opc_i2b:

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

   896                     break;

   897                 case opc_i2c:

   898                 case opc_i2s:

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

   900                     break;

   901                 case opc_aconst_null:

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

   903                     break;

   904                 case opc_iconst_m1:

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

   906                     break;

   907                 case opc_iconst_0:

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

   909                     break;

   910                 case opc_dconst_0:

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

   912                     break;

   913                 case opc_lconst_0:

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

   915                     break;

   916                 case opc_fconst_0:

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

   918                     break;

   919                 case opc_iconst_1:

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

   921                     break;

   922                 case opc_lconst_1:

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

   924                     break;

   925                 case opc_fconst_1:

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

   927                     break;

   928                 case opc_dconst_1:

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

   930                     break;

   931                 case opc_iconst_2:

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

   933                     break;

   934                 case opc_fconst_2:

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

   936                     break;

   937                 case opc_iconst_3:

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

   939                     break;

   940                 case opc_iconst_4:

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

   942                     break;

   943                 case opc_iconst_5:

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

   945                     break;

   946                 case opc_ldc: {

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

   948                     String v = encodeConstant(indx);

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

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

   951                     break;

   952                 }

   953                 case opc_ldc_w:

   954                 case opc_ldc2_w: {

   955                     int indx = readUShortArg(byteCodes, i);

   956                     i += 2;

   957                     String v = encodeConstant(indx);

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

   959                     if (type == VarType.LONG) {

   960                         final Long lv = new Long(v);

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

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

   963                         if (hi == 0) {

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

   965                         } else {

   966                             smapper.assign(this, VarType.LONG,

   967                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

   968                                     Integer.toHexString(low) + ")"

   969                             );

   970                         }

   971                     } else {

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

   973                     }

   974                     break;

   975                 }

   976                 case opc_lcmp:

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

   978                     break;

   979                 case opc_fcmpl:

   980                 case opc_fcmpg:

   981                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

   982                          smapper.popF(), smapper.popF(), smapper.pushI());

   983                     break;

   984                 case opc_dcmpl:

   985                 case opc_dcmpg:

   986                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

   987                          smapper.popD(), smapper.popD(), smapper.pushI());

   988                     break;

   989                 case opc_if_acmpeq:

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

   991                                    "===", topMostLabel);

   992                     break;

   993                 case opc_if_acmpne:

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

   995                                    "!==", topMostLabel);

   996                     break;

   997                 case opc_if_icmpeq:

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

   999                                    "==", topMostLabel);

  1000                     break;

  1001                 case opc_ifeq: {

  1002                     int indx = i + readShortArg(byteCodes, i);

  1003                     emitIf(smapper, this, "if ((@1) == 0) ",

  1004                          smapper.popI(), i, indx, topMostLabel);

  1005                     i += 2;

  1006                     break;

  1007                 }

  1008                 case opc_ifne: {

  1009                     int indx = i + readShortArg(byteCodes, i);

  1010                     emitIf(smapper, this, "if ((@1) != 0) ",

  1011                          smapper.popI(), i, indx, topMostLabel);

  1012                     i += 2;

  1013                     break;

  1014                 }

  1015                 case opc_iflt: {

  1016                     int indx = i + readShortArg(byteCodes, i);

  1017                     emitIf(smapper, this, "if ((@1) < 0) ",

  1018                          smapper.popI(), i, indx, topMostLabel);

  1019                     i += 2;

  1020                     break;

  1021                 }

  1022                 case opc_ifle: {

  1023                     int indx = i + readShortArg(byteCodes, i);

  1024                     emitIf(smapper, this, "if ((@1) <= 0) ",

  1025                          smapper.popI(), i, indx, topMostLabel);

  1026                     i += 2;

  1027                     break;

  1028                 }

  1029                 case opc_ifgt: {

  1030                     int indx = i + readShortArg(byteCodes, i);

  1031                     emitIf(smapper, this, "if ((@1) > 0) ",

  1032                          smapper.popI(), i, indx, topMostLabel);

  1033                     i += 2;

  1034                     break;

  1035                 }

  1036                 case opc_ifge: {

  1037                     int indx = i + readShortArg(byteCodes, i);

  1038                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1039                          smapper.popI(), i, indx, topMostLabel);

  1040                     i += 2;

  1041                     break;

  1042                 }

  1043                 case opc_ifnonnull: {

  1044                     int indx = i + readShortArg(byteCodes, i);

  1045                     emitIf(smapper, this, "if ((@1) !== null) ",

  1046                          smapper.popA(), i, indx, topMostLabel);

  1047                     i += 2;

  1048                     break;

  1049                 }

  1050                 case opc_ifnull: {

  1051                     int indx = i + readShortArg(byteCodes, i);

  1052                     emitIf(smapper, this, "if ((@1) === null) ",

  1053                          smapper.popA(), i, indx, topMostLabel);

  1054                     i += 2;

  1055                     break;

  1056                 }

  1057                 case opc_if_icmpne:

  1058                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1059                                    "!=", topMostLabel);

  1060                     break;

  1061                 case opc_if_icmplt:

  1062                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1063                                    "<", topMostLabel);

  1064                     break;

  1065                 case opc_if_icmple:

  1066                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1067                                    "<=", topMostLabel);

  1068                     break;

  1069                 case opc_if_icmpgt:

  1070                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1071                                    ">", topMostLabel);

  1072                     break;

  1073                 case opc_if_icmpge:

  1074                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1075                                    ">=", topMostLabel);

  1076                     break;

  1077                 case opc_goto: {

  1078                     smapper.flush(this);

  1079                     int indx = i + readShortArg(byteCodes, i);

  1080                     goTo(this, i, indx, topMostLabel);

  1081                     i += 2;

  1082                     break;

  1083                 }

  1084                 case opc_lookupswitch: {

  1085                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1086                     break;

  1087                 }

  1088                 case opc_tableswitch: {

  1089                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1090                     break;

  1091                 }

  1092                 case opc_invokeinterface: {

  1093                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1094                     break;

  1095                 }

  1096                 case opc_invokevirtual:

  1097                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1098                     break;

  1099                 case opc_invokespecial:

  1100                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1101                     break;

  1102                 case opc_invokestatic:

  1103                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1104                     break;

  1105                 case opc_invokedynamic: {

  1106                     int indx = readUShortArg(byteCodes, i);

  1107                     println("invoke dynamic: " + indx);

  1108                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1109                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1110                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1111                     println("  type: " + methodHandle.cpx1);

  1112                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1113                     String mcn = mangleClassName(mi[0]);

  1114                     char[] returnType = {'V'};

  1115                     StringBuilder cnt = new StringBuilder();

  1116                     String mn = findMethodName(mi, cnt, returnType);

  1117                     StringBuilder sb = new StringBuilder();

  1118                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1119                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1120                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1121                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1122                     sb.append("  mn   : ").append(mn).append("\n");

  1123                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1124                     throw new IOException(sb.toString());

  1125                     /*

  1126                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1127                     String type = jc.StringValue(nameAndType.cpx2);

  1128                     String object = accessClass(mcn) + "(false)";

  1129                     if (mn.startsWith("cons_")) {

  1130                         object += ".constructor";

  1131                     }

  1132                     append("var metHan = ");

  1133                     append(accessStaticMethod(object, mn, mi));

  1134                     append('(');

  1135                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1136                     append(lookup);

  1137                     append(", '").append(mi[1]).append("', ");

  1138                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1139                     append(methodType).append("'").append(type).append("', null)");

  1140 //                    if (numArguments > 0) {

  1141 //                        append(vars[0]);

  1142 //                        for (int j = 1; j < numArguments; ++j) {

  1143 //                            append(", ");

  1144 //                            append(vars[j]);

  1145 //                        }

  1146 //                    }

  1147                     append(");");

  1148                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1149                     i += 4;

  1150                     break;

  1151                     */

  1152                 }

  1153                 case opc_new: {

  1154                     int indx = readUShortArg(byteCodes, i);

  1155                     String ci = jc.getClassName(indx);

  1156                     emit(smapper, this, "var @1 = new @2;",

  1157                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1158                     addReference(ci);

  1159                     i += 2;

  1160                     break;

  1161                 }

  1162                 case opc_newarray:

  1163                     int atype = readUByte(byteCodes, ++i);

  1164                     generateNewArray(atype, smapper);

  1165                     break;

  1166                 case opc_anewarray: {

  1167                     int type = readUShortArg(byteCodes, i);

  1168                     i += 2;

  1169                     generateANewArray(type, smapper);

  1170                     break;

  1171                 }

  1172                 case opc_multianewarray: {

  1173                     int type = readUShortArg(byteCodes, i);

  1174                     i += 2;

  1175                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1176                     break;

  1177                 }

  1178                 case opc_arraylength:

  1179                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1180                     break;

  1181                 case opc_lastore:

  1182                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1183                          smapper.popL(), smapper.popI(), smapper.popA());

  1184                     break;

  1185                 case opc_fastore:

  1186                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1187                          smapper.popF(), smapper.popI(), smapper.popA());

  1188                     break;

  1189                 case opc_dastore:

  1190                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1191                          smapper.popD(), smapper.popI(), smapper.popA());

  1192                     break;

  1193                 case opc_aastore:

  1194                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1195                          smapper.popA(), smapper.popI(), smapper.popA());

  1196                     break;

  1197                 case opc_iastore:

  1198                 case opc_bastore:

  1199                 case opc_castore:

  1200                 case opc_sastore:

  1201                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1202                          smapper.popI(), smapper.popI(), smapper.popA());

  1203                     break;

  1204                 case opc_laload:

  1205                     smapper.replace(this, VarType.LONG, "Array.at(@2, @1)",

  1206                          smapper.popI(), smapper.getA(0));

  1207                     break;

  1208                 case opc_faload:

  1209                     smapper.replace(this, VarType.FLOAT, "Array.at(@2, @1)",

  1210                          smapper.popI(), smapper.getA(0));

  1211                     break;

  1212                 case opc_daload:

  1213                     smapper.replace(this, VarType.DOUBLE, "Array.at(@2, @1)",

  1214                          smapper.popI(), smapper.getA(0));

  1215                     break;

  1216                 case opc_aaload:

  1217                     smapper.replace(this, VarType.REFERENCE, "Array.at(@2, @1)",

  1218                          smapper.popI(), smapper.getA(0));

  1219                     break;

  1220                 case opc_iaload:

  1221                 case opc_baload:

  1222                 case opc_caload:

  1223                 case opc_saload:

  1224                     smapper.replace(this, VarType.INTEGER, "Array.at(@2, @1)",

  1225                          smapper.popI(), smapper.getA(0));

  1226                     break;

  1227                 case opc_pop:

  1228                 case opc_pop2:

  1229                     smapper.pop(1);

  1230                     debug("/* pop */");

  1231                     break;

  1232                 case opc_dup: {

  1233                     final Variable v = smapper.get(0);

  1234                     if (smapper.isDirty()) {

  1235                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1236                     } else {

  1237                         smapper.assign(this, v.getType(), v);

  1238                     }

  1239                     break;

  1240                 }

  1241                 case opc_dup2: {

  1242                     final Variable vi1 = smapper.get(0);

  1244                     if (vi1.isCategory2()) {

  1245                         emit(smapper, this, "var @1 = @2;",

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

  1247                     } else {

  1248                         final Variable vi2 = smapper.get(1);

  1249                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1250                              smapper.pushT(vi2.getType()), vi2,

  1251                              smapper.pushT(vi1.getType()), vi1);

  1252                     }

  1253                     break;

  1254                 }

  1255                 case opc_dup_x1: {

  1256                     final Variable vi1 = smapper.pop(this);

  1257                     final Variable vi2 = smapper.pop(this);

  1258                     final Variable vo3 = smapper.pushT(vi1.getType());

  1259                     final Variable vo2 = smapper.pushT(vi2.getType());

  1260                     final Variable vo1 = smapper.pushT(vi1.getType());

  1262                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1263                          vo1, vi1, vo2, vi2, vo3, vo1);

  1264                     break;

  1265                 }

  1266                 case opc_dup2_x1: {

  1267                     final Variable vi1 = smapper.pop(this);

  1268                     final Variable vi2 = smapper.pop(this);

  1270                     if (vi1.isCategory2()) {

  1271                         final Variable vo3 = smapper.pushT(vi1.getType());

  1272                         final Variable vo2 = smapper.pushT(vi2.getType());

  1273                         final Variable vo1 = smapper.pushT(vi1.getType());

  1275                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1276                              vo1, vi1, vo2, vi2, vo3, vo1);

  1277                     } else {

  1278                         final Variable vi3 = smapper.pop(this);

  1279                         final Variable vo5 = smapper.pushT(vi2.getType());

  1280                         final Variable vo4 = smapper.pushT(vi1.getType());

  1281                         final Variable vo3 = smapper.pushT(vi3.getType());

  1282                         final Variable vo2 = smapper.pushT(vi2.getType());

  1283                         final Variable vo1 = smapper.pushT(vi1.getType());

  1285                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1286                              vo1, vi1, vo2, vi2, vo3, vi3);

  1287                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1288                              vo4, vo1, vo5, vo2);

  1289                     }

  1290                     break;

  1291                 }

  1292                 case opc_dup_x2: {

  1293                     final Variable vi1 = smapper.pop(this);

  1294                     final Variable vi2 = smapper.pop(this);

  1296                     if (vi2.isCategory2()) {

  1297                         final Variable vo3 = smapper.pushT(vi1.getType());

  1298                         final Variable vo2 = smapper.pushT(vi2.getType());

  1299                         final Variable vo1 = smapper.pushT(vi1.getType());

  1301                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1302                              vo1, vi1, vo2, vi2, vo3, vo1);

  1303                     } else {

  1304                         final Variable vi3 = smapper.pop(this);

  1305                         final Variable vo4 = smapper.pushT(vi1.getType());

  1306                         final Variable vo3 = smapper.pushT(vi3.getType());

  1307                         final Variable vo2 = smapper.pushT(vi2.getType());

  1308                         final Variable vo1 = smapper.pushT(vi1.getType());

  1310                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1311                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1312                     }

  1313                     break;

  1314                 }

  1315                 case opc_dup2_x2: {

  1316                     final Variable vi1 = smapper.pop(this);

  1317                     final Variable vi2 = smapper.pop(this);

  1319                     if (vi1.isCategory2()) {

  1320                         if (vi2.isCategory2()) {

  1321                             final Variable vo3 = smapper.pushT(vi1.getType());

  1322                             final Variable vo2 = smapper.pushT(vi2.getType());

  1323                             final Variable vo1 = smapper.pushT(vi1.getType());

  1325                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1326                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1327                         } else {

  1328                             final Variable vi3 = smapper.pop(this);

  1329                             final Variable vo4 = smapper.pushT(vi1.getType());

  1330                             final Variable vo3 = smapper.pushT(vi3.getType());

  1331                             final Variable vo2 = smapper.pushT(vi2.getType());

  1332                             final Variable vo1 = smapper.pushT(vi1.getType());

  1334                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1335                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1336                         }

  1337                     } else {

  1338                         final Variable vi3 = smapper.pop(this);

  1340                         if (vi3.isCategory2()) {

  1341                             final Variable vo5 = smapper.pushT(vi2.getType());

  1342                             final Variable vo4 = smapper.pushT(vi1.getType());

  1343                             final Variable vo3 = smapper.pushT(vi3.getType());

  1344                             final Variable vo2 = smapper.pushT(vi2.getType());

  1345                             final Variable vo1 = smapper.pushT(vi1.getType());

  1347                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1348                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1349                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1350                                  vo4, vo1, vo5, vo2);

  1351                         } else {

  1352                             final Variable vi4 = smapper.pop(this);

  1353                             final Variable vo6 = smapper.pushT(vi2.getType());

  1354                             final Variable vo5 = smapper.pushT(vi1.getType());

  1355                             final Variable vo4 = smapper.pushT(vi4.getType());

  1356                             final Variable vo3 = smapper.pushT(vi3.getType());

  1357                             final Variable vo2 = smapper.pushT(vi2.getType());

  1358                             final Variable vo1 = smapper.pushT(vi1.getType());

  1360                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1361                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1362                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1363                                  vo5, vo1, vo6, vo2);

  1364                         }

  1365                     }

  1366                     break;

  1367                 }

  1368                 case opc_swap: {

  1369                     final Variable vi1 = smapper.get(0);

  1370                     final Variable vi2 = smapper.get(1);

  1372                     if (vi1.getType() == vi2.getType()) {

  1373                         final Variable tmp = smapper.pushT(vi1.getType());

  1375                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1376                              tmp, vi1, vi2);

  1377                         smapper.pop(1);

  1378                     } else {

  1379                         smapper.pop(2);

  1380                         smapper.pushT(vi1.getType());

  1381                         smapper.pushT(vi2.getType());

  1382                     }

  1383                     break;

  1384                 }

  1385                 case opc_bipush:

  1386                     smapper.assign(this, VarType.INTEGER,

  1387                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1388                     break;

  1389                 case opc_sipush:

  1390                     smapper.assign(this, VarType.INTEGER,

  1391                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1392                     );

  1393                     i += 2;

  1394                     break;

  1395                 case opc_getfield: {

  1396                     int indx = readUShortArg(byteCodes, i);

  1397                     String[] fi = jc.getFieldInfoName(indx);

  1398                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1399                     final String mangleClass = mangleClassName(fi[0]);

  1400                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1401                     smapper.replace(this, type, "@2.call(@1)",

  1402                          smapper.getA(0),

  1403                          accessField(mangleClassAccess,

  1404                                      "_" + fi[1], fi)

  1405                     );

  1406                     i += 2;

  1407                     addReference(fi[0]);

  1408                     break;

  1409                 }

  1410                 case opc_putfield: {

  1411                     int indx = readUShortArg(byteCodes, i);

  1412                     String[] fi = jc.getFieldInfoName(indx);

  1413                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1414                     final String mangleClass = mangleClassName(fi[0]);

  1415                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1416                     emit(smapper, this, "@3.call(@2, @1);",

  1417                          smapper.popT(type),

  1418                          smapper.popA(),

  1419                          accessField(mangleClassAccess,

  1420                                      "_" + fi[1], fi));

  1421                     i += 2;

  1422                     addReference(fi[0]);

  1423                     break;

  1424                 }

  1425                 case opc_getstatic: {

  1426                     int indx = readUShortArg(byteCodes, i);

  1427                     String[] fi = jc.getFieldInfoName(indx);

  1428                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1429                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1430                     String af = accessField(ac, "_" + fi[1], fi);

  1431                     smapper.assign(this, type, af + "()");

  1432                     i += 2;

  1433                     addReference(fi[0]);

  1434                     break;

  1435                 }

  1436                 case opc_putstatic: {

  1437                     int indx = readUShortArg(byteCodes, i);

  1438                     String[] fi = jc.getFieldInfoName(indx);

  1439                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1440                     emit(smapper, this, "@1._@2(@3);",

  1441                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1442                          smapper.popT(type));

  1443                     i += 2;

  1444                     addReference(fi[0]);

  1445                     break;

  1446                 }

  1447                 case opc_checkcast: {

  1448                     int indx = readUShortArg(byteCodes, i);

  1449                     generateCheckcast(indx, smapper);

  1450                     i += 2;

  1451                     break;

  1452                 }

  1453                 case opc_instanceof: {

  1454                     int indx = readUShortArg(byteCodes, i);

  1455                     generateInstanceOf(indx, smapper);

  1456                     i += 2;

  1457                     break;

  1458                 }

  1459                 case opc_athrow: {

  1460                     final CharSequence v = smapper.popA();

  1461                     smapper.clear();

  1463                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1464                          smapper.pushA(), v);

  1465                     break;

  1466                 }

  1468                 case opc_monitorenter: {

  1469                     debug("/* monitor enter */");

  1470                     smapper.popA();

  1471                     break;

  1472                 }

  1474                 case opc_monitorexit: {

  1475                     debug("/* monitor exit */");

  1476                     smapper.popA();

  1477                     break;

  1478                 }

  1480                 case opc_wide:

  1481                     wide = true;

  1482                     break;

  1484                 default: {

  1485                     wide = false;

  1486                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1487                          Integer.toString(c));

  1488                 }

  1489             }

  1490             if (debug(" //")) {

  1491                 generateByteCodeComment(prev, i, byteCodes);

  1492             }

  1493             if (outChanged) {

  1494                 append("\n");

  1495             }

  1496         }

  1497         if (previousTrap != null) {

  1498             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1499         }

  1500         if (didBranches) {

  1501             append("\n    }\n");

  1502         }

  1503         if (defineProp) {

  1504             append("\n}});");

  1505         } else {

  1506             append("\n};");

  1507         }

  1508         return defineProp;

  1509     }

  1511     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1512         int i, final CharSequence v2, final CharSequence v1,

  1513         final String test, int topMostLabel

  1514     ) throws IOException {

  1515         mapper.flush(this);

  1516         int indx = i + readShortArg(byteCodes, i);

  1517         append("if ((").append(v1)

  1518            .append(") ").append(test).append(" (")

  1519            .append(v2).append(")) ");

  1520         goTo(this, i, indx, topMostLabel);

  1521         return i + 2;

  1522     }

  1524     private int readInt4(byte[] byteCodes, int offset) {

  1525         final int d = byteCodes[offset + 0] << 24;

  1526         final int c = byteCodes[offset + 1] << 16;

  1527         final int b = byteCodes[offset + 2] << 8;

  1528         final int a = byteCodes[offset + 3];

  1529         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1530     }

  1531     private static int readUByte(byte[] byteCodes, int offset) {

  1532         return byteCodes[offset] & 0xff;

  1533     }

  1535     private static int readUShort(byte[] byteCodes, int offset) {

  1536         return ((byteCodes[offset] & 0xff) << 8)

  1537                     | (byteCodes[offset + 1] & 0xff);

  1538     }

  1539     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1540         return readUShort(byteCodes, offsetInstruction + 1);

  1541     }

  1543     private static int readShort(byte[] byteCodes, int offset) {

  1544         int signed = byteCodes[offset];

  1545         byte b0 = (byte)signed;

  1546         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1547     }

  1548     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1549         return readShort(byteCodes, offsetInstruction + 1);

  1550     }

  1552     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1553         int i = 0;

  1554         Boolean count = null;

  1555         boolean array = false;

  1556         sig.append("__");

  1557         int firstPos = sig.length();

  1558         while (i < descriptor.length()) {

  1559             char ch = descriptor.charAt(i++);

  1560             switch (ch) {

  1561                 case '(':

  1562                     count = true;

  1563                     continue;

  1564                 case ')':

  1565                     count = false;

  1566                     continue;

  1567                 case 'B':

  1568                 case 'C':

  1569                 case 'D':

  1570                 case 'F':

  1571                 case 'I':

  1572                 case 'J':

  1573                 case 'S':

  1574                 case 'Z':

  1575                     if (count) {

  1576                         if (array) {

  1577                             sig.append("_3");

  1578                         }

  1579                         sig.append(ch);

  1580                         if (ch == 'J' || ch == 'D') {

  1581                             cnt.append('1');

  1582                         } else {

  1583                             cnt.append('0');

  1584                         }

  1585                     } else {

  1586                         sig.insert(firstPos, ch);

  1587                         if (array) {

  1588                             returnType[0] = '[';

  1589                             sig.insert(firstPos, "_3");

  1590                         } else {

  1591                             returnType[0] = ch;

  1592                         }

  1593                     }

  1594                     array = false;

  1595                     continue;

  1596                 case 'V':

  1597                     assert !count;

  1598                     returnType[0] = 'V';

  1599                     sig.insert(firstPos, 'V');

  1600                     continue;

  1601                 case 'L':

  1602                     int next = descriptor.indexOf(';', i);

  1603                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1604                     if (count) {

  1605                         if (array) {

  1606                             sig.append("_3");

  1607                         }

  1608                         sig.append(realSig);

  1609                         cnt.append('0');

  1610                     } else {

  1611                         sig.insert(firstPos, realSig);

  1612                         if (array) {

  1613                             sig.insert(firstPos, "_3");

  1614                         }

  1615                         returnType[0] = 'L';

  1616                     }

  1617                     i = next + 1;

  1618                     array = false;

  1619                     continue;

  1620                 case '[':

  1621                     array = true;

  1622                     continue;

  1623                 default:

  1624                     throw new IllegalStateException("Invalid char: " + ch);

  1625             }

  1626         }

  1627     }

  1629     static String mangleSig(String sig) {

  1630         return mangleSig(sig, 0, sig.length());

  1631     }

  1633     private static String mangleMethodName(String name) {

  1634         StringBuilder sb = new StringBuilder(name.length() * 2);

  1635         int last = name.length();

  1636         for (int i = 0; i < last; i++) {

  1637             final char ch = name.charAt(i);

  1638             switch (ch) {

  1639                 case '_': sb.append("_1"); break;

  1640                 default: sb.append(ch); break;

  1641             }

  1642         }

  1643         return sb.toString();

  1644     }

  1645     private static String mangleSig(String txt, int first, int last) {

  1646         StringBuilder sb = new StringBuilder((last - first) * 2);

  1647         for (int i = first; i < last; i++) {

  1648             final char ch = txt.charAt(i);

  1649             switch (ch) {

  1650                 case '/': sb.append('_'); break;

  1651                 case '_': sb.append("_1"); break;

  1652                 case ';': sb.append("_2"); break;

  1653                 case '[': sb.append("_3"); break;

  1654                 default:

  1655                     if (Character.isJavaIdentifierPart(ch)) {

  1656                         sb.append(ch);

  1657                     } else {

  1658                         sb.append("_0");

  1659                         String hex = Integer.toHexString(ch).toLowerCase();

  1660                         for (int m = hex.length(); m < 4; m++) {

  1661                             sb.append("0");

  1662                         }

  1663                         sb.append(hex);

  1664                     }

  1665                 break;

  1666             }

  1667         }

  1668         return sb.toString();

  1669     }

  1671     private static String mangleClassName(String name) {

  1672         return mangleSig(name);

  1673     }

  1675     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1676         StringBuilder name = new StringBuilder();

  1677         if ("<init>".equals(m.getName())) { // NOI18N

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

  1679         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1680             name.append("class"); // NOI18N

  1681         } else {

  1682             name.append(mangleMethodName(m.getName()));

  1683         }

  1685         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1686         return name.toString();

  1687     }

  1689     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1690         StringBuilder name = new StringBuilder();

  1691         String descr = mi[2];//mi.getDescriptor();

  1692         String nm= mi[1];

  1693         if ("<init>".equals(nm)) { // NOI18N

  1694             name.append("cons"); // NOI18N

  1695         } else {

  1696             name.append(mangleMethodName(nm));

  1697         }

  1698         countArgs(descr, returnType, name, cnt);

  1699         return name.toString();

  1700     }

  1702     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1703     throws IOException {

  1704         int methodIndex = readUShortArg(byteCodes, i);

  1705         String[] mi = jc.getFieldInfoName(methodIndex);

  1706         char[] returnType = { 'V' };

  1707         StringBuilder cnt = new StringBuilder();

  1708         String mn = findMethodName(mi, cnt, returnType);

  1710         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1711         final CharSequence[] vars = new CharSequence[numArguments];

  1713         for (int j = numArguments - 1; j >= 0; --j) {

  1714             vars[j] = mapper.popValue();

  1715         }

  1717         if ((

  1718             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1719             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1720         ) || (

  1721             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1722             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1723         )) {

  1724             if (vars[1] instanceof String) {

  1725                 String field = vars[1].toString();

  1726                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1727                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1728                 }

  1729             }

  1730         }

  1731         if (

  1732             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1733             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1734         ) {

  1735             if (vars[1] instanceof String) {

  1736                 String field = vars[2].toString();

  1737                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1738                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1739                 }

  1740             }

  1741         }

  1743         if (returnType[0] != 'V') {

  1744             mapper.flush(this);

  1745             append("var ")

  1746                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1747                .append(" = ");

  1748         }

  1750         final String in = mi[0];

  1751         String mcn;

  1752         if (callbacks && (

  1753             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1754             in.equals("org/netbeans/html/boot/spi/Fn")

  1755         )) {

  1756             mcn = "java_lang_Class";

  1757         } else {

  1758             mcn = mangleClassName(in);

  1759         }

  1760         String object = accessClassFalse(mcn);

  1761         if (mn.startsWith("cons_")) {

  1762             object += ".constructor";

  1763         }

  1764         append(accessStaticMethod(object, mn, mi));

  1765         if (isStatic) {

  1766             append('(');

  1767         } else {

  1768             append(".call(");

  1769         }

  1770         if (numArguments > 0) {

  1771             append(vars[0]);

  1772             for (int j = 1; j < numArguments; ++j) {

  1773                 append(", ");

  1774                 append(vars[j]);

  1775             }

  1776         }

  1777         append(");");

  1778         i += 2;

  1779         addReference(in);

  1780         return i;

  1781     }

  1782     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1783     throws IOException {

  1784         int methodIndex = readUShortArg(byteCodes, i);

  1785         String[] mi = jc.getFieldInfoName(methodIndex);

  1786         char[] returnType = { 'V' };

  1787         StringBuilder cnt = new StringBuilder();

  1788         String mn = findMethodName(mi, cnt, returnType);

  1790         final int numArguments = cnt.length() + 1;

  1791         final CharSequence[] vars =  new CharSequence[numArguments];

  1793         for (int j = numArguments - 1; j >= 0; --j) {

  1794             vars[j] = mapper.popValue();

  1795         }

  1797         if (returnType[0] != 'V') {

  1798             mapper.flush(this);

  1799             append("var ")

  1800                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1801                .append(" = ");

  1802         }

  1804         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1805         String sep = "";

  1806         for (int j = 1; j < numArguments; ++j) {

  1807             append(sep);

  1808             append(vars[j]);

  1809             sep = ", ";

  1810         }

  1811         append(");");

  1812         i += 2;

  1813         return i;

  1814     }

  1816     private void addReference(String cn) throws IOException {

  1817         if (requireReference(cn)) {

  1818             debug(" /* needs " + cn + " */");

  1819         }

  1820     }

  1822     private void outType(String d, StringBuilder out) {

  1823         int arr = 0;

  1824         while (d.charAt(0) == '[') {

  1825             out.append('A');

  1826             d = d.substring(1);

  1827         }

  1828         if (d.charAt(0) == 'L') {

  1829             assert d.charAt(d.length() - 1) == ';';

  1830             out.append(d.replace('/', '_').substring(0, d.length() - 1));

  1831         } else {

  1832             out.append(d);

  1833         }

  1834     }

  1836     private String encodeConstant(int entryIndex) throws IOException {

  1837         String[] classRef = { null };

  1838         String s = jc.stringValue(entryIndex, classRef);

  1839         if (classRef[0] != null) {

  1840             if (classRef[0].startsWith("[")) {

  1841                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1842             } else {

  1843                 addReference(classRef[0]);

  1844                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1845             }

  1846         }

  1847         return s;

  1848     }

  1850     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1851         byte[] arr = m.findAnnotationData(true);

  1852         if (arr == null) {

  1853             return null;

  1854         }

  1855         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1856         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1857         class P extends AnnotationParser {

  1858             public P() {

  1859                 super(false, true);

  1860             }

  1862             int cnt;

  1863             String[] args = new String[30];

  1864             String body;

  1865             boolean javacall;

  1866             boolean html4j;

  1868             @Override

  1869             protected void visitAttr(String type, String attr, String at, String value) {

  1870                 if (type.equals(jvmType)) {

  1871                     if ("body".equals(attr)) {

  1872                         body = value;

  1873                     } else if ("args".equals(attr)) {

  1874                         args[cnt++] = value;

  1875                     } else {

  1876                         throw new IllegalArgumentException(attr);

  1877                     }

  1878                 }

  1879                 if (type.equals(htmlType)) {

  1880                     html4j = true;

  1881                     if ("body".equals(attr)) {

  1882                         body = value;

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

  1884                         args[cnt++] = value;

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

  1886                         javacall = "1".equals(value);

  1887                     } else if ("wait4js".equals(attr)) {

  1888                         // ignore, we always invoke synchronously

  1889                     } else {

  1890                         throw new IllegalArgumentException(attr);

  1891                     }

  1892                 }

  1893             }

  1894         }

  1895         P p = new P();

  1896         p.parse(arr, jc);

  1897         if (p.body == null) {

  1898             return null;

  1899         }

  1900         StringBuilder cnt = new StringBuilder();

  1901         final String mn = findMethodName(m, cnt);

  1902         append("m = ").append(destObject).append(".").append(mn);

  1903         append(" = function(");

  1904         String space = "";

  1905         int index = 0;

  1906         StringBuilder toValue = new StringBuilder();

  1907         for (int i = 0; i < cnt.length(); i++) {

  1908             append(space);

  1909             space = outputArg(this, p.args, index);

  1910             if (p.html4j && space.length() > 0) {

  1911                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1912                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1913                     append(p.args[index]).append(");");

  1914             }

  1915             index++;

  1916         }

  1917         append(") {").append("\n");

  1918         append(toValue.toString());

  1919         if (p.javacall) {

  1920             int lastSlash = jc.getClassName().lastIndexOf('/');

  1921             final String pkg = jc.getClassName().substring(0, lastSlash);

  1922             append(mangleCallbacks(pkg, p.body));

  1923             requireReference(pkg + "/$JsCallbacks$");

  1924         } else {

  1925             append(p.body);

  1926         }

  1927         append("\n}\n");

  1928         return mn;

  1929     }

  1931     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1932         StringBuilder sb = new StringBuilder();

  1933         int pos = 0;

  1934         for (;;) {

  1935             int next = body.indexOf(".@", pos);

  1936             if (next == -1) {

  1937                 sb.append(body.substring(pos));

  1938                 body = sb.toString();

  1939                 break;

  1940             }

  1941             int ident = next;

  1942             while (ident > 0) {

  1943                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  1944                     ident++;

  1945                     break;

  1946                 }

  1947             }

  1948             String refId = body.substring(ident, next);

  1950             sb.append(body.substring(pos, ident));

  1952             int sigBeg = body.indexOf('(', next);

  1953             int sigEnd = body.indexOf(')', sigBeg);

  1954             int colon4 = body.indexOf("::", next);

  1955             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1956                 throw new IllegalStateException("Malformed body " + body);

  1957             }

  1958             String fqn = body.substring(next + 2, colon4);

  1959             String method = body.substring(colon4 + 2, sigBeg);

  1960             String params = body.substring(sigBeg, sigEnd + 1);

  1962             int paramBeg = body.indexOf('(', sigEnd + 1);

  1964             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  1965             sb.append(mangleJsCallbacks(fqn, method, params, false));

  1966             sb.append("(").append(refId);

  1967             if (body.charAt(paramBeg + 1) != ')') {

  1968                 sb.append(",");

  1969             }

  1970             pos = paramBeg + 1;

  1971         }

  1972         sb = null;

  1973         pos = 0;

  1974         for (;;) {

  1975             int next = body.indexOf("@", pos);

  1976             if (next == -1) {

  1977                 if (sb == null) {

  1978                     return body;

  1979                 }

  1980                 sb.append(body.substring(pos));

  1981                 return sb;

  1982             }

  1983             if (sb == null) {

  1984                 sb = new StringBuilder();

  1985             }

  1987             sb.append(body.substring(pos, next));

  1989             int sigBeg = body.indexOf('(', next);

  1990             int sigEnd = body.indexOf(')', sigBeg);

  1991             int colon4 = body.indexOf("::", next);

  1992             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1993                 throw new IllegalStateException("Malformed body " + body);

  1994             }

  1995             String fqn = body.substring(next + 1, colon4);

  1996             String method = body.substring(colon4 + 2, sigBeg);

  1997             String params = body.substring(sigBeg, sigEnd + 1);

  1999             int paramBeg = body.indexOf('(', sigEnd + 1);

  2001             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  2002             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2003             sb.append("(");

  2004             pos = paramBeg + 1;

  2005         }

  2006     }

  2008     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2009         if (params.startsWith("(")) {

  2010             params = params.substring(1);

  2011         }

  2012         if (params.endsWith(")")) {

  2013             params = params.substring(0, params.length() - 1);

  2014         }

  2015         StringBuilder sb = new StringBuilder();

  2016         final String fqnu = fqn.replace('.', '_');

  2017         final String rfqn = mangleClassName(fqnu);

  2018         final String rm = mangleMethodName(method);

  2019         final String srp;

  2020         {

  2021             StringBuilder pb = new StringBuilder();

  2022             int len = params.length();

  2023             int indx = 0;

  2024             while (indx < len) {

  2025                 char ch = params.charAt(indx);

  2026                 if (ch == '[' || ch == 'L') {

  2027                     int column = params.indexOf(';', indx) + 1;

  2028                     if (column > indx) {

  2029                         String real = params.substring(indx, column);

  2030                         if ("Ljava/lang/String;".equals(real)) {

  2031                             pb.append("Ljava/lang/String;");

  2032                             indx = column;

  2033                             continue;

  2034                         }

  2035                     }

  2036                     pb.append("Ljava/lang/Object;");

  2037                     indx = column;

  2038                 } else {

  2039                     pb.append(ch);

  2040                     indx++;

  2041                 }

  2042             }

  2043             srp = mangleSig(pb.toString());

  2044         }

  2045         final String rp = mangleSig(params);

  2046         final String mrp = mangleMethodName(rp);

  2047         sb.append(rfqn).append("$").append(rm).

  2048             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2049         if (!isStatic) {

  2050             sb.append('L').append(fqnu).append("_2");

  2051         }

  2052         sb.append(srp);

  2053         return sb.toString();

  2054     }

  2056     private static String className(ClassData jc) {

  2057         //return jc.getName().getInternalName().replace('/', '_');

  2058         return mangleClassName(jc.getClassName());

  2059     }

  2061     private static String[] findAnnotation(

  2062         byte[] arr, ClassData cd, final String className,

  2063         final String... attrNames

  2064     ) throws IOException {

  2065         if (arr == null) {

  2066             return null;

  2067         }

  2068         final String[] values = new String[attrNames.length];

  2069         final boolean[] found = { false };

  2070         final String jvmType = "L" + className.replace('.', '/') + ";";

  2071         AnnotationParser ap = new AnnotationParser(false, true) {

  2072             @Override

  2073             protected void visitAttr(String type, String attr, String at, String value) {

  2074                 if (type.equals(jvmType)) {

  2075                     found[0] = true;

  2076                     for (int i = 0; i < attrNames.length; i++) {

  2077                         if (attrNames[i].equals(attr)) {

  2078                             values[i] = value;

  2079                         }

  2080                     }

  2081                 }

  2082             }

  2084         };

  2085         ap.parse(arr, cd);

  2086         return found[0] ? values : null;

  2087     }

  2089     private CharSequence initField(FieldData v) {

  2090         final String is = v.getInternalSig();

  2091         if (is.length() == 1) {

  2092             switch (is.charAt(0)) {

  2093                 case 'S':

  2094                 case 'J':

  2095                 case 'B':

  2096                 case 'Z':

  2097                 case 'C':

  2098                 case 'I': return " = 0;";

  2099                 case 'F':

  2100                 case 'D': return " = 0.0;";

  2101                 default:

  2102                     throw new IllegalStateException(is);

  2103             }

  2104         }

  2105         return " = null;";

  2106     }

  2108     private void generateAnno(ClassData cd, byte[] data) throws IOException {

  2109         AnnotationParser ap = new AnnotationParser(true, false) {

  2110             int[] cnt = new int[32];

  2111             int depth;

  2113             @Override

  2114             protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2115                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2116                 requireReference(slashType);

  2118                 if (cnt[depth]++ > 0) {

  2119                     append(",");

  2120                 }

  2121                 if (top) {

  2122                     append('"').append(attrType).append("\" : ");

  2123                 }

  2124                 append("{\n");

  2125                 cnt[++depth] = 0;

  2126             }

  2128             @Override

  2129             protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2130                 append("\n}\n");

  2131                 depth--;

  2132             }

  2134             @Override

  2135             protected void visitValueStart(String attrName, char type) throws IOException {

  2136                 if (cnt[depth]++ > 0) {

  2137                     append(",\n");

  2138                 }

  2139                 cnt[++depth] = 0;

  2140                 if (attrName != null) {

  2141                     append('"').append(attrName).append("\" : ");

  2142                 }

  2143                 if (type == '[') {

  2144                     append("[");

  2145                 }

  2146             }

  2148             @Override

  2149             protected void visitValueEnd(String attrName, char type) throws IOException {

  2150                 if (type == '[') {

  2151                     append("]");

  2152                 }

  2153                 depth--;

  2154             }

  2156             @Override

  2157             protected void visitAttr(String type, String attr, String attrType, String value)

  2158             throws IOException {

  2159                 if (attr == null && value == null) {

  2160                     return;

  2161                 }

  2162                 append(value);

  2163             }

  2165             @Override

  2166             protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2167             throws IOException {

  2168                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2169                 requireReference(slashType);

  2171                 final String cn = mangleClassName(slashType);

  2172                 append(accessClassFalse(cn))

  2173                    .append("['valueOf__L").

  2174                     append(cn).

  2175                     append("_2Ljava_lang_String_2']('").

  2176                     append(value).

  2177                     append("')");

  2178             }

  2179         };

  2180         ap.parse(data, cd);

  2181     }

  2183     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2184         final String name = args[indx];

  2185         if (name == null) {

  2186             return "";

  2187         }

  2188         if (name.contains(",")) {

  2189             throw new IOException("Wrong parameter with ',': " + name);

  2190         }

  2191         out.append(name);

  2192         return ",";

  2193     }

  2195     final void emitNoFlush(

  2196         StackMapper sm,

  2197         final String format, final CharSequence... params

  2198     ) throws IOException {

  2199         emitImpl(this, format, params);

  2200     }

  2201     static final void emit(

  2202         StackMapper sm,

  2203         final Appendable out,

  2204         final String format, final CharSequence... params

  2205     ) throws IOException {

  2206         sm.flush(out);

  2207         emitImpl(out, format, params);

  2208     }

  2209     static void emitImpl(final Appendable out,

  2210                              final String format,

  2211                              final CharSequence... params) throws IOException {

  2212         final int length = format.length();

  2214         int processed = 0;

  2215         int paramOffset = format.indexOf('@');

  2216         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2217             final char paramChar = format.charAt(paramOffset + 1);

  2218             if ((paramChar >= '1') && (paramChar <= '9')) {

  2219                 final int paramIndex = paramChar - '0' - 1;

  2221                 out.append(format, processed, paramOffset);

  2222                 out.append(params[paramIndex]);

  2224                 ++paramOffset;

  2225                 processed = paramOffset + 1;

  2226             }

  2228             paramOffset = format.indexOf('@', paramOffset + 1);

  2229         }

  2231         out.append(format, processed, length);

  2232     }

  2234     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2235         append("} catch (e) {\n");

  2236         int finallyPC = -1;

  2237         for (TrapData e : traps) {

  2238             if (e == null) {

  2239                 break;

  2240             }

  2241             if (e.catch_cpx != 0) { //not finally

  2242                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2243                 addReference(classInternalName);

  2244                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2245                 append("if (e['$instOf_" + classInternalName.replace('/', '_') + "']) {");

  2246                 append("var stA0 = e;");

  2247                 goTo(this, current, e.handler_pc, topMostLabel);

  2248                 append("}\n");

  2249             } else {

  2250                 finallyPC = e.handler_pc;

  2251             }

  2252         }

  2253         if (finallyPC == -1) {

  2254             append("throw e;");

  2255         } else {

  2256             append("var stA0 = e;");

  2257             goTo(this, current, finallyPC, topMostLabel);

  2258         }

  2259         append("\n}");

  2260     }

  2262     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

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

  2264     }

  2266     private static void emitIf(

  2267         StackMapper sm,

  2268         Appendable out, String pattern,

  2269         CharSequence param,

  2270         int current, int to, int canBack

  2271     ) throws IOException {

  2272         sm.flush(out);

  2273         emitImpl(out, pattern, param);

  2274         goTo(out, current, to, canBack);

  2275     }

  2277     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2278         String jvmType;

  2279         switch (atype) {

  2280             case 4: jvmType = "[Z"; break;

  2281             case 5: jvmType = "[C"; break;

  2282             case 6: jvmType = "[F"; break;

  2283             case 7: jvmType = "[D"; break;

  2284             case 8: jvmType = "[B"; break;

  2285             case 9: jvmType = "[S"; break;

  2286             case 10: jvmType = "[I"; break;

  2287             case 11: jvmType = "[J"; break;

  2288             default: throw new IllegalStateException("Array type: " + atype);

  2289         }

  2290         emit(smapper, this,

  2291             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2292              smapper.popI(), smapper.pushA(), jvmType);

  2293     }

  2295     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2296         String typeName = jc.getClassName(type);

  2297         String ref = "null";

  2298         if (typeName.startsWith("[")) {

  2299             typeName = "'[" + typeName + "'";

  2300         } else {

  2301             ref = "vm." + mangleClassName(typeName);

  2302             typeName = "'[L" + typeName + ";'";

  2303         }

  2304         emit(smapper, this,

  2305             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2306              smapper.popI(), smapper.pushA(), typeName, ref);

  2307     }

  2309     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2310         String typeName = jc.getClassName(type);

  2311         int dim = readUByte(byteCodes, ++i);

  2312         StringBuilder dims = new StringBuilder();

  2313         dims.append('[');

  2314         for (int d = 0; d < dim; d++) {

  2315             if (d != 0) {

  2316                 dims.insert(1, ",");

  2317             }

  2318             dims.insert(1, smapper.popI());

  2319         }

  2320         dims.append(']');

  2321         String fn = "null";

  2322         if (typeName.charAt(dim) == 'L') {

  2323             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2324         }

  2325         emit(smapper, this,

  2326             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2327              dims.toString(), smapper.pushA(), typeName, fn

  2328         );

  2329         return i;

  2330     }

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

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

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

  2335         table += 4;

  2336         int low = readInt4(byteCodes, table);

  2337         table += 4;

  2338         int high = readInt4(byteCodes, table);

  2339         table += 4;

  2340         final CharSequence swVar = smapper.popValue();

  2341         smapper.flush(this);

  2342         append("switch (").append(swVar).append(") {\n");

  2343         while (low <= high) {

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

  2345             table += 4;

  2346             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2347             low++;

  2348         }

  2349         append("  default: ");

  2350         goTo(this, i, dflt, topMostLabel);

  2351         append("\n}");

  2352         i = table - 1;

  2353         return i;

  2354     }

  2356     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2357         int table = i / 4 * 4 + 4;

  2358         int dflt = i + readInt4(byteCodes, table);

  2359         table += 4;

  2360         int n = readInt4(byteCodes, table);

  2361         table += 4;

  2362         final CharSequence swVar = smapper.popValue();

  2363         smapper.flush(this);

  2364         append("switch (").append(swVar).append(") {\n");

  2365         while (n-- > 0) {

  2366             int cnstnt = readInt4(byteCodes, table);

  2367             table += 4;

  2368             int offset = i + readInt4(byteCodes, table);

  2369             table += 4;

  2370             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2371         }

  2372         append("  default: ");

  2373         goTo(this, i, dflt, topMostLabel);

  2374         append("\n}");

  2375         i = table - 1;

  2376         return i;

  2377     }

  2379     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2380         String type = jc.getClassName(indx);

  2381         if (!type.startsWith("[")) {

  2382             emit(smapper, this,

  2383                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2384                  smapper.popA(), smapper.pushI(),

  2385                  type.replace('/', '_'));

  2386         } else {

  2387             int cnt = 0;

  2388             while (type.charAt(cnt) == '[') {

  2389                 cnt++;

  2390             }

  2391             if (type.charAt(cnt) == 'L') {

  2392                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2393                 emit(smapper, this,

  2394                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2395                     smapper.popA(), smapper.pushI(),

  2396                     type, "" + cnt

  2397                 );

  2398             } else {

  2399                 emit(smapper, this,

  2400                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2401                     smapper.popA(), smapper.pushI(), type

  2402                 );

  2403             }

  2404         }

  2405     }

  2407     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2408         String type = jc.getClassName(indx);

  2409         if (!type.startsWith("[")) {

  2410             emitNoFlush(smapper,

  2411                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2412                  smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));

  2413         } else {

  2414             int cnt = 0;

  2415             while (type.charAt(cnt) == '[') {

  2416                 cnt++;

  2417             }

  2418             if (type.charAt(cnt) == 'L') {

  2419                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2420                 emitNoFlush(smapper,

  2421                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2422                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2423                 );

  2424             } else {

  2425                 emitNoFlush(smapper,

  2426                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2427                      smapper.getT(0, VarType.REFERENCE, false), type

  2428                 );

  2429             }

  2430         }

  2431     }

  2433     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2434         for (int j = prev; j <= i; j++) {

  2435             append(" ");

  2436             final int cc = readUByte(byteCodes, j);

  2437             append(Integer.toString(cc));

  2438         }

  2439     }

  2441     @JavaScriptBody(args = "msg", body = "")

  2442     private static void println(String msg) {

  2443         System.err.println(msg);

  2444     }

  2445 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Thu, 02 Apr 2015 15:07:24 +0200
branch	SwitchFlow
changeset 1820	33ef5fe79475
parent 1811	ff2a253900ed
permissions	-rw-r--r--