hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@a29572878b0e

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

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

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

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

   163             );

   164         }

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

   166         {

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

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

   169                 "resource", "processByteCode"

   170             );

   171             if (arr != null) {

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

   173                     requireScript(arr[0]);

   174                 }

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

   176                     return null;

   177                 }

   178             }

   179         }

   180         final String jsResource;

   181         {

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

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

   184                 "value"

   185             );

   186             if (arr != null) {

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

   188                     jsResource = arr[0];

   189                 } else {

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

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

   192                 }

   193             } else {

   194                 jsResource = null;

   195             }

   196         }

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

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

   199             "container", "prototype"

   200         );

   201         StringArray toInitilize = new StringArray();

   202         final String className = className(jc);

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

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

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

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

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

   208         if (proto == null) {

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

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

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

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

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

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

   215         } else {

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

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

   218                 proto[0] = "p";

   219             }

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

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

   222         }

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

   224             if (v.isStatic()) {

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

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

   227                         continue;

   228                     }

   229                 }

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

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

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

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

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

   235             } else {

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

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

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

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

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

   241                    .append("; };");

   242             }

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

   245         }

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

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

   248             if (javaScriptOnly(onlyArr)) continue;

   249             String destObject;

   250             String mn;

   251             append("\n    ");

   252             if (m.isStatic()) {

   253                 destObject = "c";

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

   255             } else {

   256                 if (m.isConstructor()) {

   257                     destObject = "CLS";

   258                     mn = generateInstanceMethod(destObject, m);

   259                 } else {

   260                     destObject = "c";

   261                     mn = generateInstanceMethod(destObject, m);

   262                 }

   263             }

   264             declaredMethod(m, destObject, mn);

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

   266             if (runAnno != null) {

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

   268                 generateAnno(jc, runAnno);

   269                 append("\n    };");

   270             }

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

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

   273         }

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

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

   276         String instOfName = "$instOf_" + className;

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

   278         if (jc.isInterface()) {

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

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

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

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

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

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

   285                 }

   286             }

   287         }

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

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

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

   291             requireReference(superInterface);

   292         }

   293         append("\n    }");

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

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

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

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

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

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

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

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

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

   303         {

   304             boolean first = true;

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

   306                 if (!first) {

   307                     append(",");

   308                 }

   309                 requireReference(intrfc);

   310                 String mangledIface = mangleClassName(intrfc);

   311                 append("\n        ");

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

   313                 first = false;

   314             }

   315         }

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

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

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

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

   320         if (classAnno != null) {

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

   322             generateAnno(jc, classAnno);

   323             append("\n    };");

   324         }

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

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

   327         }

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

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

   330         }

   331         classRefs.clear();

   333         if (jsResource != null) {

   334             requireResource(jsResource);

   335         }

   337         append("\n  }");

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

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

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

   341         append("\n    }");

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

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

   344             if (javaScriptOnly(onlyArr)) continue;

   345             if (!v.isStatic()) {

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

   347                     append(className).append('_').

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

   349             }

   350         }

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

   352         append("\n  }");

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

   354         append("\n};");

   356         declaredClass(jc, className);

   358 //        StringBuilder sb = new StringBuilder();

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

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

   361 //        }

   362         return "";

   363     }

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

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

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

   368             "name", "value"

   369         );

   370         if (only != null) {

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

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

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

   374             }

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

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

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

   378             }

   379             return true;

   380         }

   381         return false;

   382     }

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

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

   385         if (jsb != null) {

   386             return jsb;

   387         }

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

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

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

   391             if (defineProp) {

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

   393             } else {

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

   395             }

   396         }

   397         return mn;

   398     }

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

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

   402         if (jsb != null) {

   403             return jsb;

   404         }

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

   406         generateMethod(destObject, mn, m);

   407         return mn;

   408     }

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

   411             throws IOException {

   412         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   413         TrapDataIterator trap = m.getTrapDataIterator();

   414         final LocalsMapper lmapper =

   415                 new LocalsMapper(stackMapIterator.getArguments());

   417         boolean defineProp =

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

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

   421         if (defineProp) {

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

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

   424         } else {

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

   426         }

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

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

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

   431         if (byteCodes == null) {

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

   433                .append(jc.getClassName()).append('.')

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

   435             if (defineProp) {

   436                 append("}});");

   437             } else {

   438                 append("};");

   439             }

   440             return defineProp;

   441         }

   443         final StackMapper smapper = new StackMapper();

   445         if (!m.isStatic()) {

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

   447         }

   449         int lastStackFrame;

   450         TrapData[] previousTrap = null;

   451         boolean wide = false;

   452         boolean didBranches;

   453         if (stackMapIterator.isEmpty()) {

   454             didBranches = false;

   455             lastStackFrame = 0;

   456         } else {

   457             didBranches = true;

   458             lastStackFrame = -1;

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

   460         }

   462         int openBraces = 0;

   463         int topMostLabel = 0;

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

   465             int prev = i;

   466             outChanged = false;

   467             stackMapIterator.advanceTo(i);

   468             boolean changeInCatch = trap.advanceTo(i);

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

   470                 if (previousTrap != null) {

   471                     generateCatch(previousTrap, i, topMostLabel);

   472                     previousTrap = null;

   473                 }

   474             }

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

   476                 smapper.flush(this);

   477                 if (i != 0) {

   478                     append("    }\n");

   479                 }

   480                 if (openBraces > 64) {

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

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

   483                     }

   484                     openBraces = 1;

   485                     topMostLabel = i;

   486                 }

   488                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   492                 openBraces++;

   493                 changeInCatch = true;

   494             } else {

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

   496             }

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

   498                 append("try {");

   499                 previousTrap = trap.current();

   500             }

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

   502             switch (c) {

   503                 case opc_aload_0:

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

   505                     break;

   506                 case opc_iload_0:

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

   508                     break;

   509                 case opc_lload_0:

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

   511                     break;

   512                 case opc_fload_0:

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

   514                     break;

   515                 case opc_dload_0:

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

   517                     break;

   518                 case opc_aload_1:

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

   520                     break;

   521                 case opc_iload_1:

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

   523                     break;

   524                 case opc_lload_1:

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

   526                     break;

   527                 case opc_fload_1:

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

   529                     break;

   530                 case opc_dload_1:

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

   532                     break;

   533                 case opc_aload_2:

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

   535                     break;

   536                 case opc_iload_2:

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

   538                     break;

   539                 case opc_lload_2:

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

   541                     break;

   542                 case opc_fload_2:

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

   544                     break;

   545                 case opc_dload_2:

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

   547                     break;

   548                 case opc_aload_3:

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

   550                     break;

   551                 case opc_iload_3:

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

   553                     break;

   554                 case opc_lload_3:

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

   556                     break;

   557                 case opc_fload_3:

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

   559                     break;

   560                 case opc_dload_3:

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

   562                     break;

   563                 case opc_iload: {

   564                     ++i;

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

   566                                           : readUByte(byteCodes, i);

   567                     wide = false;

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

   569                     break;

   570                 }

   571                 case opc_lload: {

   572                     ++i;

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

   574                                           : readUByte(byteCodes, i);

   575                     wide = false;

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

   577                     break;

   578                 }

   579                 case opc_fload: {

   580                     ++i;

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

   582                                           : readUByte(byteCodes, i);

   583                     wide = false;

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

   585                     break;

   586                 }

   587                 case opc_dload: {

   588                     ++i;

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

   590                                           : readUByte(byteCodes, i);

   591                     wide = false;

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

   593                     break;

   594                 }

   595                 case opc_aload: {

   596                     ++i;

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

   598                                           : readUByte(byteCodes, i);

   599                     wide = false;

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

   601                     break;

   602                 }

   603                 case opc_istore: {

   604                     ++i;

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

   606                                           : readUByte(byteCodes, i);

   607                     wide = false;

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

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

   610                     break;

   611                 }

   612                 case opc_lstore: {

   613                     ++i;

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

   615                                           : readUByte(byteCodes, i);

   616                     wide = false;

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

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

   619                     break;

   620                 }

   621                 case opc_fstore: {

   622                     ++i;

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

   624                                           : readUByte(byteCodes, i);

   625                     wide = false;

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

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

   628                     break;

   629                 }

   630                 case opc_dstore: {

   631                     ++i;

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

   633                                           : readUByte(byteCodes, i);

   634                     wide = false;

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

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

   637                     break;

   638                 }

   639                 case opc_astore: {

   640                     ++i;

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

   642                                           : readUByte(byteCodes, i);

   643                     wide = false;

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

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

   646                     break;

   647                 }

   648                 case opc_astore_0:

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

   650                     break;

   651                 case opc_istore_0:

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

   653                     break;

   654                 case opc_lstore_0:

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

   656                     break;

   657                 case opc_fstore_0:

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

   659                     break;

   660                 case opc_dstore_0:

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

   662                     break;

   663                 case opc_astore_1:

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

   665                     break;

   666                 case opc_istore_1:

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

   668                     break;

   669                 case opc_lstore_1:

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

   671                     break;

   672                 case opc_fstore_1:

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

   674                     break;

   675                 case opc_dstore_1:

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

   677                     break;

   678                 case opc_astore_2:

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

   680                     break;

   681                 case opc_istore_2:

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

   683                     break;

   684                 case opc_lstore_2:

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

   686                     break;

   687                 case opc_fstore_2:

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

   689                     break;

   690                 case opc_dstore_2:

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

   692                     break;

   693                 case opc_astore_3:

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

   695                     break;

   696                 case opc_istore_3:

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

   698                     break;

   699                 case opc_lstore_3:

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

   701                     break;

   702                 case opc_fstore_3:

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

   704                     break;

   705                 case opc_dstore_3:

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

   707                     break;

   708                 case opc_iadd:

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

   710                     break;

   711                 case opc_ladd:

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

   713                     break;

   714                 case opc_fadd:

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

   716                     break;

   717                 case opc_dadd:

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

   719                     break;

   720                 case opc_isub:

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

   722                     break;

   723                 case opc_lsub:

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

   725                     break;

   726                 case opc_fsub:

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

   728                     break;

   729                 case opc_dsub:

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

   731                     break;

   732                 case opc_imul:

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

   734                     break;

   735                 case opc_lmul:

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

   737                     break;

   738                 case opc_fmul:

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

   740                     break;

   741                 case opc_dmul:

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

   743                     break;

   744                 case opc_idiv:

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

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

   747                     break;

   748                 case opc_ldiv:

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

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

   751                     break;

   752                 case opc_fdiv:

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

   754                     break;

   755                 case opc_ddiv:

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

   757                     break;

   758                 case opc_irem:

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

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

   761                     break;

   762                 case opc_lrem:

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

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

   765                     break;

   766                 case opc_frem:

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

   768                     break;

   769                 case opc_drem:

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

   771                     break;

   772                 case opc_iand:

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

   774                     break;

   775                 case opc_land:

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

   777                     break;

   778                 case opc_ior:

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

   780                     break;

   781                 case opc_lor:

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

   783                     break;

   784                 case opc_ixor:

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

   786                     break;

   787                 case opc_lxor:

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

   789                     break;

   790                 case opc_ineg:

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

   792                     break;

   793                 case opc_lneg:

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

   795                     break;

   796                 case opc_fneg:

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

   798                     break;

   799                 case opc_dneg:

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

   801                     break;

   802                 case opc_ishl:

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

   804                     break;

   805                 case opc_lshl:

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

   807                     break;

   808                 case opc_ishr:

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

   810                     break;

   811                 case opc_lshr:

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

   813                     break;

   814                 case opc_iushr:

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

   816                     break;

   817                 case opc_lushr:

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

   819                     break;

   820                 case opc_iinc: {

   821                     ++i;

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

   823                                              : readUByte(byteCodes, i);

   824                     ++i;

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

   826                                             : byteCodes[i];

   827                     wide = false;

   828                     if (incrBy == 1) {

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

   830                     } else {

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

   832                              lmapper.getI(varIndx),

   833                              Integer.toString(incrBy));

   834                     }

   835                     break;

   836                 }

   837                 case opc_return:

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

   839                     break;

   840                 case opc_ireturn:

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

   842                     break;

   843                 case opc_lreturn:

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

   845                     break;

   846                 case opc_freturn:

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

   848                     break;

   849                 case opc_dreturn:

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

   851                     break;

   852                 case opc_areturn:

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

   854                     break;

   855                 case opc_i2l:

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

   857                     break;

   858                 case opc_i2f:

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

   860                     break;

   861                 case opc_i2d:

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

   863                     break;

   864                 case opc_l2i:

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

   866                     break;

   867                     // max int check?

   868                 case opc_l2f:

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

   870                     break;

   871                 case opc_l2d:

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

   873                     break;

   874                 case opc_f2d:

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

   876                          smapper.getF(0));

   877                     break;

   878                 case opc_d2f:

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

   880                          smapper.getD(0));

   881                     break;

   882                 case opc_f2i:

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

   884                          smapper.getF(0));

   885                     break;

   886                 case opc_f2l:

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

   888                          smapper.getF(0));

   889                     break;

   890                 case opc_d2i:

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

   892                          smapper.getD(0));

   893                     break;

   894                 case opc_d2l:

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

   896                     break;

   897                 case opc_i2b:

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

   899                     break;

   900                 case opc_i2c:

   901                 case opc_i2s:

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

   903                     break;

   904                 case opc_aconst_null:

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

   906                     break;

   907                 case opc_iconst_m1:

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

   909                     break;

   910                 case opc_iconst_0:

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

   912                     break;

   913                 case opc_dconst_0:

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

   915                     break;

   916                 case opc_lconst_0:

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

   918                     break;

   919                 case opc_fconst_0:

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

   921                     break;

   922                 case opc_iconst_1:

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

   924                     break;

   925                 case opc_lconst_1:

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

   927                     break;

   928                 case opc_fconst_1:

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

   930                     break;

   931                 case opc_dconst_1:

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

   933                     break;

   934                 case opc_iconst_2:

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

   936                     break;

   937                 case opc_fconst_2:

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

   939                     break;

   940                 case opc_iconst_3:

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

   942                     break;

   943                 case opc_iconst_4:

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

   945                     break;

   946                 case opc_iconst_5:

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

   948                     break;

   949                 case opc_ldc: {

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

   951                     String v = encodeConstant(indx);

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

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

   954                     break;

   955                 }

   956                 case opc_ldc_w:

   957                 case opc_ldc2_w: {

   958                     int indx = readUShortArg(byteCodes, i);

   959                     i += 2;

   960                     String v = encodeConstant(indx);

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

   962                     if (type == VarType.LONG) {

   963                         final Long lv = new Long(v);

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

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

   966                         if (hi == 0) {

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

   968                         } else {

   969                             smapper.assign(this, VarType.LONG,

   970                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

   971                                     Integer.toHexString(low) + ")"

   972                             );

   973                         }

   974                     } else {

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

   976                     }

   977                     break;

   978                 }

   979                 case opc_lcmp:

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

   981                     break;

   982                 case opc_fcmpl:

   983                 case opc_fcmpg:

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

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

   986                     break;

   987                 case opc_dcmpl:

   988                 case opc_dcmpg:

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

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

   991                     break;

   992                 case opc_if_acmpeq:

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

   994                                    "===", topMostLabel);

   995                     break;

   996                 case opc_if_acmpne:

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

   998                                    "!==", topMostLabel);

   999                     break;

  1000                 case opc_if_icmpeq:

  1001                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1002                                    "==", topMostLabel);

  1003                     break;

  1004                 case opc_ifeq: {

  1005                     int indx = i + readShortArg(byteCodes, i);

  1006                     emitIf(smapper, this, "if ((@1) == 0) ",

  1007                          smapper.popI(), i, indx, topMostLabel);

  1008                     i += 2;

  1009                     break;

  1010                 }

  1011                 case opc_ifne: {

  1012                     int indx = i + readShortArg(byteCodes, i);

  1013                     emitIf(smapper, this, "if ((@1) != 0) ",

  1014                          smapper.popI(), i, indx, topMostLabel);

  1015                     i += 2;

  1016                     break;

  1017                 }

  1018                 case opc_iflt: {

  1019                     int indx = i + readShortArg(byteCodes, i);

  1020                     emitIf(smapper, this, "if ((@1) < 0) ",

  1021                          smapper.popI(), i, indx, topMostLabel);

  1022                     i += 2;

  1023                     break;

  1024                 }

  1025                 case opc_ifle: {

  1026                     int indx = i + readShortArg(byteCodes, i);

  1027                     emitIf(smapper, this, "if ((@1) <= 0) ",

  1028                          smapper.popI(), i, indx, topMostLabel);

  1029                     i += 2;

  1030                     break;

  1031                 }

  1032                 case opc_ifgt: {

  1033                     int indx = i + readShortArg(byteCodes, i);

  1034                     emitIf(smapper, this, "if ((@1) > 0) ",

  1035                          smapper.popI(), i, indx, topMostLabel);

  1036                     i += 2;

  1037                     break;

  1038                 }

  1039                 case opc_ifge: {

  1040                     int indx = i + readShortArg(byteCodes, i);

  1041                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1042                          smapper.popI(), i, indx, topMostLabel);

  1043                     i += 2;

  1044                     break;

  1045                 }

  1046                 case opc_ifnonnull: {

  1047                     int indx = i + readShortArg(byteCodes, i);

  1048                     emitIf(smapper, this, "if ((@1) !== null) ",

  1049                          smapper.popA(), i, indx, topMostLabel);

  1050                     i += 2;

  1051                     break;

  1052                 }

  1053                 case opc_ifnull: {

  1054                     int indx = i + readShortArg(byteCodes, i);

  1055                     emitIf(smapper, this, "if ((@1) === null) ",

  1056                          smapper.popA(), i, indx, topMostLabel);

  1057                     i += 2;

  1058                     break;

  1059                 }

  1060                 case opc_if_icmpne:

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

  1062                                    "!=", topMostLabel);

  1063                     break;

  1064                 case opc_if_icmplt:

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

  1066                                    "<", topMostLabel);

  1067                     break;

  1068                 case opc_if_icmple:

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

  1070                                    "<=", topMostLabel);

  1071                     break;

  1072                 case opc_if_icmpgt:

  1073                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1074                                    ">", topMostLabel);

  1075                     break;

  1076                 case opc_if_icmpge:

  1077                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1078                                    ">=", topMostLabel);

  1079                     break;

  1080                 case opc_goto: {

  1081                     smapper.flush(this);

  1082                     int indx = i + readShortArg(byteCodes, i);

  1083                     goTo(this, i, indx, topMostLabel);

  1084                     i += 2;

  1085                     break;

  1086                 }

  1087                 case opc_lookupswitch: {

  1088                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1089                     break;

  1090                 }

  1091                 case opc_tableswitch: {

  1092                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1093                     break;

  1094                 }

  1095                 case opc_invokeinterface: {

  1096                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1097                     break;

  1098                 }

  1099                 case opc_invokevirtual:

  1100                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1101                     break;

  1102                 case opc_invokespecial:

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

  1104                     break;

  1105                 case opc_invokestatic:

  1106                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1107                     break;

  1108                 case opc_invokedynamic: {

  1109                     int indx = readUShortArg(byteCodes, i);

  1110                     println("invoke dynamic: " + indx);

  1111                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1112                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1113                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1114                     println("  type: " + methodHandle.cpx1);

  1115                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1116                     String mcn = mangleClassName(mi[0]);

  1117                     char[] returnType = {'V'};

  1118                     StringBuilder cnt = new StringBuilder();

  1119                     String mn = findMethodName(mi, cnt, returnType);

  1120                     StringBuilder sb = new StringBuilder();

  1121                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1122                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1123                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1124                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1125                     sb.append("  mn   : ").append(mn).append("\n");

  1126                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1127                     throw new IOException(sb.toString());

  1128                     /*

  1129                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1130                     String type = jc.StringValue(nameAndType.cpx2);

  1131                     String object = accessClass(mcn) + "(false)";

  1132                     if (mn.startsWith("cons_")) {

  1133                         object += ".constructor";

  1134                     }

  1135                     append("var metHan = ");

  1136                     append(accessStaticMethod(object, mn, mi));

  1137                     append('(');

  1138                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1139                     append(lookup);

  1140                     append(", '").append(mi[1]).append("', ");

  1141                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1142                     append(methodType).append("'").append(type).append("', null)");

  1143 //                    if (numArguments > 0) {

  1144 //                        append(vars[0]);

  1145 //                        for (int j = 1; j < numArguments; ++j) {

  1146 //                            append(", ");

  1147 //                            append(vars[j]);

  1148 //                        }

  1149 //                    }

  1150                     append(");");

  1151                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1152                     i += 4;

  1153                     break;

  1154                     */

  1155                 }

  1156                 case opc_new: {

  1157                     int indx = readUShortArg(byteCodes, i);

  1158                     String ci = jc.getClassName(indx);

  1159                     emit(smapper, this, "var @1 = new @2;",

  1160                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1161                     addReference(ci);

  1162                     i += 2;

  1163                     break;

  1164                 }

  1165                 case opc_newarray:

  1166                     int atype = readUByte(byteCodes, ++i);

  1167                     generateNewArray(atype, smapper);

  1168                     break;

  1169                 case opc_anewarray: {

  1170                     int type = readUShortArg(byteCodes, i);

  1171                     i += 2;

  1172                     generateANewArray(type, smapper);

  1173                     break;

  1174                 }

  1175                 case opc_multianewarray: {

  1176                     int type = readUShortArg(byteCodes, i);

  1177                     i += 2;

  1178                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1179                     break;

  1180                 }

  1181                 case opc_arraylength:

  1182                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1183                     break;

  1184                 case opc_lastore:

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

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

  1187                     break;

  1188                 case opc_fastore:

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

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

  1191                     break;

  1192                 case opc_dastore:

  1193                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1194                          smapper.popD(), smapper.popI(), smapper.popA());

  1195                     break;

  1196                 case opc_aastore:

  1197                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1198                          smapper.popA(), smapper.popI(), smapper.popA());

  1199                     break;

  1200                 case opc_iastore:

  1201                 case opc_bastore:

  1202                 case opc_castore:

  1203                 case opc_sastore:

  1204                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1205                          smapper.popI(), smapper.popI(), smapper.popA());

  1206                     break;

  1207                 case opc_laload:

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

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

  1210                     break;

  1211                 case opc_faload:

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

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

  1214                     break;

  1215                 case opc_daload:

  1216                     smapper.replace(this, VarType.DOUBLE, "Array.at(@2, @1)",

  1217                          smapper.popI(), smapper.getA(0));

  1218                     break;

  1219                 case opc_aaload:

  1220                     smapper.replace(this, VarType.REFERENCE, "Array.at(@2, @1)",

  1221                          smapper.popI(), smapper.getA(0));

  1222                     break;

  1223                 case opc_iaload:

  1224                 case opc_baload:

  1225                 case opc_caload:

  1226                 case opc_saload:

  1227                     smapper.replace(this, VarType.INTEGER, "Array.at(@2, @1)",

  1228                          smapper.popI(), smapper.getA(0));

  1229                     break;

  1230                 case opc_pop:

  1231                 case opc_pop2:

  1232                     smapper.pop(1);

  1233                     debug("/* pop */");

  1234                     break;

  1235                 case opc_dup: {

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

  1237                     if (smapper.isDirty()) {

  1238                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1239                     } else {

  1240                         smapper.assign(this, v.getType(), v);

  1241                     }

  1242                     break;

  1243                 }

  1244                 case opc_dup2: {

  1245                     final Variable vi1 = smapper.get(0);

  1247                     if (vi1.isCategory2()) {

  1248                         emit(smapper, this, "var @1 = @2;",

  1249                              smapper.pushT(vi1.getType()), vi1);

  1250                     } else {

  1251                         final Variable vi2 = smapper.get(1);

  1252                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1253                              smapper.pushT(vi2.getType()), vi2,

  1254                              smapper.pushT(vi1.getType()), vi1);

  1255                     }

  1256                     break;

  1257                 }

  1258                 case opc_dup_x1: {

  1259                     final Variable vi1 = smapper.pop(this);

  1260                     final Variable vi2 = smapper.pop(this);

  1261                     final Variable vo3 = smapper.pushT(vi1.getType());

  1262                     final Variable vo2 = smapper.pushT(vi2.getType());

  1263                     final Variable vo1 = smapper.pushT(vi1.getType());

  1265                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1266                          vo1, vi1, vo2, vi2, vo3, vo1);

  1267                     break;

  1268                 }

  1269                 case opc_dup2_x1: {

  1270                     final Variable vi1 = smapper.pop(this);

  1271                     final Variable vi2 = smapper.pop(this);

  1273                     if (vi1.isCategory2()) {

  1274                         final Variable vo3 = smapper.pushT(vi1.getType());

  1275                         final Variable vo2 = smapper.pushT(vi2.getType());

  1276                         final Variable vo1 = smapper.pushT(vi1.getType());

  1278                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1279                              vo1, vi1, vo2, vi2, vo3, vo1);

  1280                     } else {

  1281                         final Variable vi3 = smapper.pop(this);

  1282                         final Variable vo5 = smapper.pushT(vi2.getType());

  1283                         final Variable vo4 = smapper.pushT(vi1.getType());

  1284                         final Variable vo3 = smapper.pushT(vi3.getType());

  1285                         final Variable vo2 = smapper.pushT(vi2.getType());

  1286                         final Variable vo1 = smapper.pushT(vi1.getType());

  1288                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1289                              vo1, vi1, vo2, vi2, vo3, vi3);

  1290                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1291                              vo4, vo1, vo5, vo2);

  1292                     }

  1293                     break;

  1294                 }

  1295                 case opc_dup_x2: {

  1296                     final Variable vi1 = smapper.pop(this);

  1297                     final Variable vi2 = smapper.pop(this);

  1299                     if (vi2.isCategory2()) {

  1300                         final Variable vo3 = smapper.pushT(vi1.getType());

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

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

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

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

  1306                     } else {

  1307                         final Variable vi3 = smapper.pop(this);

  1308                         final Variable vo4 = smapper.pushT(vi1.getType());

  1309                         final Variable vo3 = smapper.pushT(vi3.getType());

  1310                         final Variable vo2 = smapper.pushT(vi2.getType());

  1311                         final Variable vo1 = smapper.pushT(vi1.getType());

  1313                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1314                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1315                     }

  1316                     break;

  1317                 }

  1318                 case opc_dup2_x2: {

  1319                     final Variable vi1 = smapper.pop(this);

  1320                     final Variable vi2 = smapper.pop(this);

  1322                     if (vi1.isCategory2()) {

  1323                         if (vi2.isCategory2()) {

  1324                             final Variable vo3 = smapper.pushT(vi1.getType());

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

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

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

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

  1330                         } else {

  1331                             final Variable vi3 = smapper.pop(this);

  1332                             final Variable vo4 = smapper.pushT(vi1.getType());

  1333                             final Variable vo3 = smapper.pushT(vi3.getType());

  1334                             final Variable vo2 = smapper.pushT(vi2.getType());

  1335                             final Variable vo1 = smapper.pushT(vi1.getType());

  1337                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1338                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1339                         }

  1340                     } else {

  1341                         final Variable vi3 = smapper.pop(this);

  1343                         if (vi3.isCategory2()) {

  1344                             final Variable vo5 = smapper.pushT(vi2.getType());

  1345                             final Variable vo4 = smapper.pushT(vi1.getType());

  1346                             final Variable vo3 = smapper.pushT(vi3.getType());

  1347                             final Variable vo2 = smapper.pushT(vi2.getType());

  1348                             final Variable vo1 = smapper.pushT(vi1.getType());

  1350                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1351                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1352                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1353                                  vo4, vo1, vo5, vo2);

  1354                         } else {

  1355                             final Variable vi4 = smapper.pop(this);

  1356                             final Variable vo6 = smapper.pushT(vi2.getType());

  1357                             final Variable vo5 = smapper.pushT(vi1.getType());

  1358                             final Variable vo4 = smapper.pushT(vi4.getType());

  1359                             final Variable vo3 = smapper.pushT(vi3.getType());

  1360                             final Variable vo2 = smapper.pushT(vi2.getType());

  1361                             final Variable vo1 = smapper.pushT(vi1.getType());

  1363                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1364                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1365                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1366                                  vo5, vo1, vo6, vo2);

  1367                         }

  1368                     }

  1369                     break;

  1370                 }

  1371                 case opc_swap: {

  1372                     final Variable vi1 = smapper.get(0);

  1373                     final Variable vi2 = smapper.get(1);

  1375                     if (vi1.getType() == vi2.getType()) {

  1376                         final Variable tmp = smapper.pushT(vi1.getType());

  1378                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1379                              tmp, vi1, vi2);

  1380                         smapper.pop(1);

  1381                     } else {

  1382                         smapper.pop(2);

  1383                         smapper.pushT(vi1.getType());

  1384                         smapper.pushT(vi2.getType());

  1385                     }

  1386                     break;

  1387                 }

  1388                 case opc_bipush:

  1389                     smapper.assign(this, VarType.INTEGER,

  1390                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1391                     break;

  1392                 case opc_sipush:

  1393                     smapper.assign(this, VarType.INTEGER,

  1394                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1395                     );

  1396                     i += 2;

  1397                     break;

  1398                 case opc_getfield: {

  1399                     int indx = readUShortArg(byteCodes, i);

  1400                     String[] fi = jc.getFieldInfoName(indx);

  1401                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1402                     final String mangleClass = mangleClassName(fi[0]);

  1403                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1404                     smapper.replace(this, type, "@2.call(@1)",

  1405                          smapper.getA(0),

  1406                          accessField(mangleClassAccess,

  1407                                      "_" + fi[1], fi)

  1408                     );

  1409                     i += 2;

  1410                     addReference(fi[0]);

  1411                     break;

  1412                 }

  1413                 case opc_putfield: {

  1414                     int indx = readUShortArg(byteCodes, i);

  1415                     String[] fi = jc.getFieldInfoName(indx);

  1416                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1417                     final String mangleClass = mangleClassName(fi[0]);

  1418                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1419                     emit(smapper, this, "@3.call(@2, @1);",

  1420                          smapper.popT(type),

  1421                          smapper.popA(),

  1422                          accessField(mangleClassAccess,

  1423                                      "_" + fi[1], fi));

  1424                     i += 2;

  1425                     addReference(fi[0]);

  1426                     break;

  1427                 }

  1428                 case opc_getstatic: {

  1429                     int indx = readUShortArg(byteCodes, i);

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

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

  1432                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1433                     String af = accessField(ac, "_" + fi[1], fi);

  1434                     smapper.assign(this, type, af + "()");

  1435                     i += 2;

  1436                     addReference(fi[0]);

  1437                     break;

  1438                 }

  1439                 case opc_putstatic: {

  1440                     int indx = readUShortArg(byteCodes, i);

  1441                     String[] fi = jc.getFieldInfoName(indx);

  1442                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1443                     emit(smapper, this, "@1._@2(@3);",

  1444                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1445                          smapper.popT(type));

  1446                     i += 2;

  1447                     addReference(fi[0]);

  1448                     break;

  1449                 }

  1450                 case opc_checkcast: {

  1451                     int indx = readUShortArg(byteCodes, i);

  1452                     generateCheckcast(indx, smapper);

  1453                     i += 2;

  1454                     break;

  1455                 }

  1456                 case opc_instanceof: {

  1457                     int indx = readUShortArg(byteCodes, i);

  1458                     generateInstanceOf(indx, smapper);

  1459                     i += 2;

  1460                     break;

  1461                 }

  1462                 case opc_athrow: {

  1463                     final CharSequence v = smapper.popA();

  1464                     smapper.clear();

  1466                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1467                          smapper.pushA(), v);

  1468                     break;

  1469                 }

  1471                 case opc_monitorenter: {

  1472                     debug("/* monitor enter */");

  1473                     smapper.popA();

  1474                     break;

  1475                 }

  1477                 case opc_monitorexit: {

  1478                     debug("/* monitor exit */");

  1479                     smapper.popA();

  1480                     break;

  1481                 }

  1483                 case opc_wide:

  1484                     wide = true;

  1485                     break;

  1487                 default: {

  1488                     wide = false;

  1489                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1490                          Integer.toString(c));

  1491                 }

  1492             }

  1493             if (debug(" //")) {

  1494                 generateByteCodeComment(prev, i, byteCodes);

  1495             }

  1496             if (outChanged) {

  1497                 append("\n");

  1498             }

  1499         }

  1500         if (previousTrap != null) {

  1501             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1502         }

  1503         if (didBranches) {

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

  1505         }

  1506         while (openBraces-- > 0) {

  1507             append('}');

  1508         }

  1509         if (defineProp) {

  1510             append("\n}});");

  1511         } else {

  1512             append("\n};");

  1513         }

  1514         return defineProp;

  1515     }

  1517     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1518         int i, final CharSequence v2, final CharSequence v1,

  1519         final String test, int topMostLabel

  1520     ) throws IOException {

  1521         mapper.flush(this);

  1522         int indx = i + readShortArg(byteCodes, i);

  1523         append("if ((").append(v1)

  1524            .append(") ").append(test).append(" (")

  1525            .append(v2).append(")) ");

  1526         goTo(this, i, indx, topMostLabel);

  1527         return i + 2;

  1528     }

  1530     private int readInt4(byte[] byteCodes, int offset) {

  1531         final int d = byteCodes[offset + 0] << 24;

  1532         final int c = byteCodes[offset + 1] << 16;

  1533         final int b = byteCodes[offset + 2] << 8;

  1534         final int a = byteCodes[offset + 3];

  1535         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1536     }

  1537     private static int readUByte(byte[] byteCodes, int offset) {

  1538         return byteCodes[offset] & 0xff;

  1539     }

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

  1542         return ((byteCodes[offset] & 0xff) << 8)

  1543                     | (byteCodes[offset + 1] & 0xff);

  1544     }

  1545     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1546         return readUShort(byteCodes, offsetInstruction + 1);

  1547     }

  1549     private static int readShort(byte[] byteCodes, int offset) {

  1550         int signed = byteCodes[offset];

  1551         byte b0 = (byte)signed;

  1552         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1553     }

  1554     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1555         return readShort(byteCodes, offsetInstruction + 1);

  1556     }

  1558     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1559         int i = 0;

  1560         Boolean count = null;

  1561         boolean array = false;

  1562         sig.append("__");

  1563         int firstPos = sig.length();

  1564         while (i < descriptor.length()) {

  1565             char ch = descriptor.charAt(i++);

  1566             switch (ch) {

  1567                 case '(':

  1568                     count = true;

  1569                     continue;

  1570                 case ')':

  1571                     count = false;

  1572                     continue;

  1573                 case 'B':

  1574                 case 'C':

  1575                 case 'D':

  1576                 case 'F':

  1577                 case 'I':

  1578                 case 'J':

  1579                 case 'S':

  1580                 case 'Z':

  1581                     if (count) {

  1582                         if (array) {

  1583                             sig.append("_3");

  1584                         }

  1585                         sig.append(ch);

  1586                         if (ch == 'J' || ch == 'D') {

  1587                             cnt.append('1');

  1588                         } else {

  1589                             cnt.append('0');

  1590                         }

  1591                     } else {

  1592                         sig.insert(firstPos, ch);

  1593                         if (array) {

  1594                             returnType[0] = '[';

  1595                             sig.insert(firstPos, "_3");

  1596                         } else {

  1597                             returnType[0] = ch;

  1598                         }

  1599                     }

  1600                     array = false;

  1601                     continue;

  1602                 case 'V':

  1603                     assert !count;

  1604                     returnType[0] = 'V';

  1605                     sig.insert(firstPos, 'V');

  1606                     continue;

  1607                 case 'L':

  1608                     int next = descriptor.indexOf(';', i);

  1609                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1610                     if (count) {

  1611                         if (array) {

  1612                             sig.append("_3");

  1613                         }

  1614                         sig.append(realSig);

  1615                         cnt.append('0');

  1616                     } else {

  1617                         sig.insert(firstPos, realSig);

  1618                         if (array) {

  1619                             sig.insert(firstPos, "_3");

  1620                         }

  1621                         returnType[0] = 'L';

  1622                     }

  1623                     i = next + 1;

  1624                     array = false;

  1625                     continue;

  1626                 case '[':

  1627                     array = true;

  1628                     continue;

  1629                 default:

  1630                     throw new IllegalStateException("Invalid char: " + ch);

  1631             }

  1632         }

  1633     }

  1635     static String mangleSig(String sig) {

  1636         return mangleSig(sig, 0, sig.length());

  1637     }

  1639     private static String mangleMethodName(String name) {

  1640         StringBuilder sb = new StringBuilder(name.length() * 2);

  1641         int last = name.length();

  1642         for (int i = 0; i < last; i++) {

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

  1644             switch (ch) {

  1645                 case '_': sb.append("_1"); break;

  1646                 default: sb.append(ch); break;

  1647             }

  1648         }

  1649         return sb.toString();

  1650     }

  1651     private static String mangleSig(String txt, int first, int last) {

  1652         StringBuilder sb = new StringBuilder((last - first) * 2);

  1653         for (int i = first; i < last; i++) {

  1654             final char ch = txt.charAt(i);

  1655             switch (ch) {

  1656                 case '/': sb.append('_'); break;

  1657                 case '_': sb.append("_1"); break;

  1658                 case ';': sb.append("_2"); break;

  1659                 case '[': sb.append("_3"); break;

  1660                 default:

  1661                     if (Character.isJavaIdentifierPart(ch)) {

  1662                         sb.append(ch);

  1663                     } else {

  1664                         sb.append("_0");

  1665                         String hex = Integer.toHexString(ch).toLowerCase();

  1666                         for (int m = hex.length(); m < 4; m++) {

  1667                             sb.append("0");

  1668                         }

  1669                         sb.append(hex);

  1670                     }

  1671                 break;

  1672             }

  1673         }

  1674         return sb.toString();

  1675     }

  1677     private static String mangleClassName(String name) {

  1678         return mangleSig(name);

  1679     }

  1681     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1682         StringBuilder name = new StringBuilder();

  1683         if ("<init>".equals(m.getName())) { // NOI18N

  1684             name.append("cons"); // NOI18N

  1685         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1686             name.append("class"); // NOI18N

  1687         } else {

  1688             name.append(mangleMethodName(m.getName()));

  1689         }

  1691         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1692         return name.toString();

  1693     }

  1695     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1696         StringBuilder name = new StringBuilder();

  1697         String descr = mi[2];//mi.getDescriptor();

  1698         String nm= mi[1];

  1699         if ("<init>".equals(nm)) { // NOI18N

  1700             name.append("cons"); // NOI18N

  1701         } else {

  1702             name.append(mangleMethodName(nm));

  1703         }

  1704         countArgs(descr, returnType, name, cnt);

  1705         return name.toString();

  1706     }

  1708     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1709     throws IOException {

  1710         int methodIndex = readUShortArg(byteCodes, i);

  1711         String[] mi = jc.getFieldInfoName(methodIndex);

  1712         char[] returnType = { 'V' };

  1713         StringBuilder cnt = new StringBuilder();

  1714         String mn = findMethodName(mi, cnt, returnType);

  1716         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1717         final CharSequence[] vars = new CharSequence[numArguments];

  1719         for (int j = numArguments - 1; j >= 0; --j) {

  1720             vars[j] = mapper.popValue();

  1721         }

  1723         if ((

  1724             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1725             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1726         ) || (

  1727             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1728             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1729         )) {

  1730             if (vars[1] instanceof String) {

  1731                 String field = vars[1].toString();

  1732                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1733                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1734                 }

  1735             }

  1736         }

  1737         if (

  1738             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1739             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1740         ) {

  1741             if (vars[1] instanceof String) {

  1742                 String field = vars[2].toString();

  1743                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1744                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1745                 }

  1746             }

  1747         }

  1749         if (returnType[0] != 'V') {

  1750             mapper.flush(this);

  1751             append("var ")

  1752                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1753                .append(" = ");

  1754         }

  1756         final String in = mi[0];

  1757         String mcn;

  1758         if (callbacks && (

  1759             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1760             in.equals("org/netbeans/html/boot/spi/Fn")

  1761         )) {

  1762             mcn = "java_lang_Class";

  1763         } else {

  1764             mcn = mangleClassName(in);

  1765         }

  1766         String object = accessClassFalse(mcn);

  1767         if (mn.startsWith("cons_")) {

  1768             object += ".constructor";

  1769         }

  1770         append(accessStaticMethod(object, mn, mi));

  1771         if (isStatic) {

  1772             append('(');

  1773         } else {

  1774             append(".call(");

  1775         }

  1776         if (numArguments > 0) {

  1777             append(vars[0]);

  1778             for (int j = 1; j < numArguments; ++j) {

  1779                 append(", ");

  1780                 append(vars[j]);

  1781             }

  1782         }

  1783         append(");");

  1784         i += 2;

  1785         addReference(in);

  1786         return i;

  1787     }

  1788     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1789     throws IOException {

  1790         int methodIndex = readUShortArg(byteCodes, i);

  1791         String[] mi = jc.getFieldInfoName(methodIndex);

  1792         char[] returnType = { 'V' };

  1793         StringBuilder cnt = new StringBuilder();

  1794         String mn = findMethodName(mi, cnt, returnType);

  1796         final int numArguments = cnt.length() + 1;

  1797         final CharSequence[] vars =  new CharSequence[numArguments];

  1799         for (int j = numArguments - 1; j >= 0; --j) {

  1800             vars[j] = mapper.popValue();

  1801         }

  1803         if (returnType[0] != 'V') {

  1804             mapper.flush(this);

  1805             append("var ")

  1806                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1807                .append(" = ");

  1808         }

  1810         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1811         String sep = "";

  1812         for (int j = 1; j < numArguments; ++j) {

  1813             append(sep);

  1814             append(vars[j]);

  1815             sep = ", ";

  1816         }

  1817         append(");");

  1818         i += 2;

  1819         return i;

  1820     }

  1822     private void addReference(String cn) throws IOException {

  1823         if (requireReference(cn)) {

  1824             debug(" /* needs " + cn + " */");

  1825         }

  1826     }

  1828     private void outType(String d, StringBuilder out) {

  1829         int arr = 0;

  1830         while (d.charAt(0) == '[') {

  1831             out.append('A');

  1832             d = d.substring(1);

  1833         }

  1834         if (d.charAt(0) == 'L') {

  1835             assert d.charAt(d.length() - 1) == ';';

  1836             out.append(d.replace('/', '_').substring(0, d.length() - 1));

  1837         } else {

  1838             out.append(d);

  1839         }

  1840     }

  1842     private String encodeConstant(int entryIndex) throws IOException {

  1843         String[] classRef = { null };

  1844         String s = jc.stringValue(entryIndex, classRef);

  1845         if (classRef[0] != null) {

  1846             if (classRef[0].startsWith("[")) {

  1847                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1848             } else {

  1849                 addReference(classRef[0]);

  1850                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1851             }

  1852         }

  1853         return s;

  1854     }

  1856     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1857         byte[] arr = m.findAnnotationData(true);

  1858         if (arr == null) {

  1859             return null;

  1860         }

  1861         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1862         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1863         class P extends AnnotationParser {

  1864             public P() {

  1865                 super(false, true);

  1866             }

  1868             int cnt;

  1869             String[] args = new String[30];

  1870             String body;

  1871             boolean javacall;

  1872             boolean html4j;

  1874             @Override

  1875             protected void visitAttr(String type, String attr, String at, String value) {

  1876                 if (type.equals(jvmType)) {

  1877                     if ("body".equals(attr)) {

  1878                         body = value;

  1879                     } else if ("args".equals(attr)) {

  1880                         args[cnt++] = value;

  1881                     } else {

  1882                         throw new IllegalArgumentException(attr);

  1883                     }

  1884                 }

  1885                 if (type.equals(htmlType)) {

  1886                     html4j = true;

  1887                     if ("body".equals(attr)) {

  1888                         body = value;

  1889                     } else if ("args".equals(attr)) {

  1890                         args[cnt++] = value;

  1891                     } else if ("javacall".equals(attr)) {

  1892                         javacall = "1".equals(value);

  1893                     } else if ("wait4js".equals(attr)) {

  1894                         // ignore, we always invoke synchronously

  1895                     } else {

  1896                         throw new IllegalArgumentException(attr);

  1897                     }

  1898                 }

  1899             }

  1900         }

  1901         P p = new P();

  1902         p.parse(arr, jc);

  1903         if (p.body == null) {

  1904             return null;

  1905         }

  1906         StringBuilder cnt = new StringBuilder();

  1907         final String mn = findMethodName(m, cnt);

  1908         append("m = ").append(destObject).append(".").append(mn);

  1909         append(" = function(");

  1910         String space = "";

  1911         int index = 0;

  1912         StringBuilder toValue = new StringBuilder();

  1913         for (int i = 0; i < cnt.length(); i++) {

  1914             append(space);

  1915             space = outputArg(this, p.args, index);

  1916             if (p.html4j && space.length() > 0) {

  1917                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1918                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1919                     append(p.args[index]).append(");");

  1920             }

  1921             index++;

  1922         }

  1923         append(") {").append("\n");

  1924         append(toValue.toString());

  1925         if (p.javacall) {

  1926             int lastSlash = jc.getClassName().lastIndexOf('/');

  1927             final String pkg = jc.getClassName().substring(0, lastSlash);

  1928             append(mangleCallbacks(pkg, p.body));

  1929             requireReference(pkg + "/$JsCallbacks$");

  1930         } else {

  1931             append(p.body);

  1932         }

  1933         append("\n}\n");

  1934         return mn;

  1935     }

  1937     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1938         StringBuilder sb = new StringBuilder();

  1939         int pos = 0;

  1940         for (;;) {

  1941             int next = body.indexOf(".@", pos);

  1942             if (next == -1) {

  1943                 sb.append(body.substring(pos));

  1944                 body = sb.toString();

  1945                 break;

  1946             }

  1947             int ident = next;

  1948             while (ident > 0) {

  1949                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  1950                     ident++;

  1951                     break;

  1952                 }

  1953             }

  1954             String refId = body.substring(ident, next);

  1956             sb.append(body.substring(pos, ident));

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

  1959             int sigEnd = body.indexOf(')', sigBeg);

  1960             int colon4 = body.indexOf("::", next);

  1961             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1962                 throw new IllegalStateException("Malformed body " + body);

  1963             }

  1964             String fqn = body.substring(next + 2, colon4);

  1965             String method = body.substring(colon4 + 2, sigBeg);

  1966             String params = body.substring(sigBeg, sigEnd + 1);

  1968             int paramBeg = body.indexOf('(', sigEnd + 1);

  1970             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  1971             sb.append(mangleJsCallbacks(fqn, method, params, false));

  1972             sb.append("(").append(refId);

  1973             if (body.charAt(paramBeg + 1) != ')') {

  1974                 sb.append(",");

  1975             }

  1976             pos = paramBeg + 1;

  1977         }

  1978         sb = null;

  1979         pos = 0;

  1980         for (;;) {

  1981             int next = body.indexOf("@", pos);

  1982             if (next == -1) {

  1983                 if (sb == null) {

  1984                     return body;

  1985                 }

  1986                 sb.append(body.substring(pos));

  1987                 return sb;

  1988             }

  1989             if (sb == null) {

  1990                 sb = new StringBuilder();

  1991             }

  1993             sb.append(body.substring(pos, next));

  1995             int sigBeg = body.indexOf('(', next);

  1996             int sigEnd = body.indexOf(')', sigBeg);

  1997             int colon4 = body.indexOf("::", next);

  1998             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1999                 throw new IllegalStateException("Malformed body " + body);

  2000             }

  2001             String fqn = body.substring(next + 1, colon4);

  2002             String method = body.substring(colon4 + 2, sigBeg);

  2003             String params = body.substring(sigBeg, sigEnd + 1);

  2005             int paramBeg = body.indexOf('(', sigEnd + 1);

  2007             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  2008             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2009             sb.append("(");

  2010             pos = paramBeg + 1;

  2011         }

  2012     }

  2014     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2015         if (params.startsWith("(")) {

  2016             params = params.substring(1);

  2017         }

  2018         if (params.endsWith(")")) {

  2019             params = params.substring(0, params.length() - 1);

  2020         }

  2021         StringBuilder sb = new StringBuilder();

  2022         final String fqnu = fqn.replace('.', '_');

  2023         final String rfqn = mangleClassName(fqnu);

  2024         final String rm = mangleMethodName(method);

  2025         final String srp;

  2026         {

  2027             StringBuilder pb = new StringBuilder();

  2028             int len = params.length();

  2029             int indx = 0;

  2030             while (indx < len) {

  2031                 char ch = params.charAt(indx);

  2032                 if (ch == '[' || ch == 'L') {

  2033                     int column = params.indexOf(';', indx) + 1;

  2034                     if (column > indx) {

  2035                         String real = params.substring(indx, column);

  2036                         if ("Ljava/lang/String;".equals(real)) {

  2037                             pb.append("Ljava/lang/String;");

  2038                             indx = column;

  2039                             continue;

  2040                         }

  2041                     }

  2042                     pb.append("Ljava/lang/Object;");

  2043                     indx = column;

  2044                 } else {

  2045                     pb.append(ch);

  2046                     indx++;

  2047                 }

  2048             }

  2049             srp = mangleSig(pb.toString());

  2050         }

  2051         final String rp = mangleSig(params);

  2052         final String mrp = mangleMethodName(rp);

  2053         sb.append(rfqn).append("$").append(rm).

  2054             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2055         if (!isStatic) {

  2056             sb.append('L').append(fqnu).append("_2");

  2057         }

  2058         sb.append(srp);

  2059         return sb.toString();

  2060     }

  2062     private static String className(ClassData jc) {

  2063         //return jc.getName().getInternalName().replace('/', '_');

  2064         return mangleClassName(jc.getClassName());

  2065     }

  2067     private static String[] findAnnotation(

  2068         byte[] arr, ClassData cd, final String className,

  2069         final String... attrNames

  2070     ) throws IOException {

  2071         if (arr == null) {

  2072             return null;

  2073         }

  2074         final String[] values = new String[attrNames.length];

  2075         final boolean[] found = { false };

  2076         final String jvmType = "L" + className.replace('.', '/') + ";";

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

  2078             @Override

  2079             protected void visitAttr(String type, String attr, String at, String value) {

  2080                 if (type.equals(jvmType)) {

  2081                     found[0] = true;

  2082                     for (int i = 0; i < attrNames.length; i++) {

  2083                         if (attrNames[i].equals(attr)) {

  2084                             values[i] = value;

  2085                         }

  2086                     }

  2087                 }

  2088             }

  2090         };

  2091         ap.parse(arr, cd);

  2092         return found[0] ? values : null;

  2093     }

  2095     private CharSequence initField(FieldData v) {

  2096         final String is = v.getInternalSig();

  2097         if (is.length() == 1) {

  2098             switch (is.charAt(0)) {

  2099                 case 'S':

  2100                 case 'J':

  2101                 case 'B':

  2102                 case 'Z':

  2103                 case 'C':

  2104                 case 'I': return " = 0;";

  2105                 case 'F':

  2106                 case 'D': return " = 0.0;";

  2107                 default:

  2108                     throw new IllegalStateException(is);

  2109             }

  2110         }

  2111         return " = null;";

  2112     }

  2114     private void generateAnno(ClassData cd, byte[] data) throws IOException {

  2115         AnnotationParser ap = new AnnotationParser(true, false) {

  2116             int[] cnt = new int[32];

  2117             int depth;

  2119             @Override

  2120             protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2121                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2122                 requireReference(slashType);

  2124                 if (cnt[depth]++ > 0) {

  2125                     append(",");

  2126                 }

  2127                 if (top) {

  2128                     append('"').append(attrType).append("\" : ");

  2129                 }

  2130                 append("{\n");

  2131                 cnt[++depth] = 0;

  2132             }

  2134             @Override

  2135             protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2136                 append("\n}\n");

  2137                 depth--;

  2138             }

  2140             @Override

  2141             protected void visitValueStart(String attrName, char type) throws IOException {

  2142                 if (cnt[depth]++ > 0) {

  2143                     append(",\n");

  2144                 }

  2145                 cnt[++depth] = 0;

  2146                 if (attrName != null) {

  2147                     append('"').append(attrName).append("\" : ");

  2148                 }

  2149                 if (type == '[') {

  2150                     append("[");

  2151                 }

  2152             }

  2154             @Override

  2155             protected void visitValueEnd(String attrName, char type) throws IOException {

  2156                 if (type == '[') {

  2157                     append("]");

  2158                 }

  2159                 depth--;

  2160             }

  2162             @Override

  2163             protected void visitAttr(String type, String attr, String attrType, String value)

  2164             throws IOException {

  2165                 if (attr == null && value == null) {

  2166                     return;

  2167                 }

  2168                 append(value);

  2169             }

  2171             @Override

  2172             protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2173             throws IOException {

  2174                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2175                 requireReference(slashType);

  2177                 final String cn = mangleClassName(slashType);

  2178                 append(accessClassFalse(cn))

  2179                    .append("['valueOf__L").

  2180                     append(cn).

  2181                     append("_2Ljava_lang_String_2']('").

  2182                     append(value).

  2183                     append("')");

  2184             }

  2185         };

  2186         ap.parse(data, cd);

  2187     }

  2189     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2190         final String name = args[indx];

  2191         if (name == null) {

  2192             return "";

  2193         }

  2194         if (name.contains(",")) {

  2195             throw new IOException("Wrong parameter with ',': " + name);

  2196         }

  2197         out.append(name);

  2198         return ",";

  2199     }

  2201     final void emitNoFlush(

  2202         StackMapper sm,

  2203         final String format, final CharSequence... params

  2204     ) throws IOException {

  2205         emitImpl(this, format, params);

  2206     }

  2207     static final void emit(

  2208         StackMapper sm,

  2209         final Appendable out,

  2210         final String format, final CharSequence... params

  2211     ) throws IOException {

  2212         sm.flush(out);

  2213         emitImpl(out, format, params);

  2214     }

  2215     static void emitImpl(final Appendable out,

  2216                              final String format,

  2217                              final CharSequence... params) throws IOException {

  2218         final int length = format.length();

  2220         int processed = 0;

  2221         int paramOffset = format.indexOf('@');

  2222         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2223             final char paramChar = format.charAt(paramOffset + 1);

  2224             if ((paramChar >= '1') && (paramChar <= '9')) {

  2225                 final int paramIndex = paramChar - '0' - 1;

  2227                 out.append(format, processed, paramOffset);

  2228                 out.append(params[paramIndex]);

  2230                 ++paramOffset;

  2231                 processed = paramOffset + 1;

  2232             }

  2234             paramOffset = format.indexOf('@', paramOffset + 1);

  2235         }

  2237         out.append(format, processed, length);

  2238     }

  2240     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2241         append("} catch (e) {\n");

  2242         int finallyPC = -1;

  2243         for (TrapData e : traps) {

  2244             if (e == null) {

  2245                 break;

  2246             }

  2247             if (e.catch_cpx != 0) { //not finally

  2248                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2249                 addReference(classInternalName);

  2250                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2251                 append("if (e['$instOf_" + classInternalName.replace('/', '_') + "']) {");

  2252                 append("var stA0 = e;");

  2253                 goTo(this, current, e.handler_pc, topMostLabel);

  2254                 append("}\n");

  2255             } else {

  2256                 finallyPC = e.handler_pc;

  2257             }

  2258         }

  2259         if (finallyPC == -1) {

  2260             append("throw e;");

  2261         } else {

  2262             append("var stA0 = e;");

  2263             goTo(this, current, finallyPC, topMostLabel);

  2264         }

  2265         append("\n}");

  2266     }

  2268     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2269         if (to < current) {

  2270             if (canBack < to) {

  2271                 out.append("{ gt = 0; continue X_" + to + "; }");

  2272             } else {

  2273                 out.append("{ gt = " + to + "; continue X_0; }");

  2274             }

  2275         } else {

  2276             out.append("{ gt = " + to + "; break IF; }");

  2277         }

  2278     }

  2280     private static void emitIf(

  2281         StackMapper sm,

  2282         Appendable out, String pattern,

  2283         CharSequence param,

  2284         int current, int to, int canBack

  2285     ) throws IOException {

  2286         sm.flush(out);

  2287         emitImpl(out, pattern, param);

  2288         goTo(out, current, to, canBack);

  2289     }

  2291     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2292         String jvmType;

  2293         switch (atype) {

  2294             case 4: jvmType = "[Z"; break;

  2295             case 5: jvmType = "[C"; break;

  2296             case 6: jvmType = "[F"; break;

  2297             case 7: jvmType = "[D"; break;

  2298             case 8: jvmType = "[B"; break;

  2299             case 9: jvmType = "[S"; break;

  2300             case 10: jvmType = "[I"; break;

  2301             case 11: jvmType = "[J"; break;

  2302             default: throw new IllegalStateException("Array type: " + atype);

  2303         }

  2304         emit(smapper, this,

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

  2306              smapper.popI(), smapper.pushA(), jvmType);

  2307     }

  2309     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2310         String typeName = jc.getClassName(type);

  2311         String ref = "null";

  2312         if (typeName.startsWith("[")) {

  2313             typeName = "'[" + typeName + "'";

  2314         } else {

  2315             ref = "vm." + mangleClassName(typeName);

  2316             typeName = "'[L" + typeName + ";'";

  2317         }

  2318         emit(smapper, this,

  2319             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2320              smapper.popI(), smapper.pushA(), typeName, ref);

  2321     }

  2323     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2324         String typeName = jc.getClassName(type);

  2325         int dim = readUByte(byteCodes, ++i);

  2326         StringBuilder dims = new StringBuilder();

  2327         dims.append('[');

  2328         for (int d = 0; d < dim; d++) {

  2329             if (d != 0) {

  2330                 dims.insert(1, ",");

  2331             }

  2332             dims.insert(1, smapper.popI());

  2333         }

  2334         dims.append(']');

  2335         String fn = "null";

  2336         if (typeName.charAt(dim) == 'L') {

  2337             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2338         }

  2339         emit(smapper, this,

  2340             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2341              dims.toString(), smapper.pushA(), typeName, fn

  2342         );

  2343         return i;

  2344     }

  2346     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2347         int table = i / 4 * 4 + 4;

  2348         int dflt = i + readInt4(byteCodes, table);

  2349         table += 4;

  2350         int low = readInt4(byteCodes, table);

  2351         table += 4;

  2352         int high = readInt4(byteCodes, table);

  2353         table += 4;

  2354         final CharSequence swVar = smapper.popValue();

  2355         smapper.flush(this);

  2356         append("switch (").append(swVar).append(") {\n");

  2357         while (low <= high) {

  2358             int offset = i + readInt4(byteCodes, table);

  2359             table += 4;

  2360             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2361             low++;

  2362         }

  2363         append("  default: ");

  2364         goTo(this, i, dflt, topMostLabel);

  2365         append("\n}");

  2366         i = table - 1;

  2367         return i;

  2368     }

  2370     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2371         int table = i / 4 * 4 + 4;

  2372         int dflt = i + readInt4(byteCodes, table);

  2373         table += 4;

  2374         int n = readInt4(byteCodes, table);

  2375         table += 4;

  2376         final CharSequence swVar = smapper.popValue();

  2377         smapper.flush(this);

  2378         append("switch (").append(swVar).append(") {\n");

  2379         while (n-- > 0) {

  2380             int cnstnt = readInt4(byteCodes, table);

  2381             table += 4;

  2382             int offset = i + readInt4(byteCodes, table);

  2383             table += 4;

  2384             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2385         }

  2386         append("  default: ");

  2387         goTo(this, i, dflt, topMostLabel);

  2388         append("\n}");

  2389         i = table - 1;

  2390         return i;

  2391     }

  2393     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2394         String type = jc.getClassName(indx);

  2395         if (!type.startsWith("[")) {

  2396             emit(smapper, this,

  2397                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2398                  smapper.popA(), smapper.pushI(),

  2399                  type.replace('/', '_'));

  2400         } else {

  2401             int cnt = 0;

  2402             while (type.charAt(cnt) == '[') {

  2403                 cnt++;

  2404             }

  2405             if (type.charAt(cnt) == 'L') {

  2406                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2407                 emit(smapper, this,

  2408                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2409                     smapper.popA(), smapper.pushI(),

  2410                     type, "" + cnt

  2411                 );

  2412             } else {

  2413                 emit(smapper, this,

  2414                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2415                     smapper.popA(), smapper.pushI(), type

  2416                 );

  2417             }

  2418         }

  2419     }

  2421     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2422         String type = jc.getClassName(indx);

  2423         if (!type.startsWith("[")) {

  2424             emitNoFlush(smapper,

  2425                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2426                  smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));

  2427         } else {

  2428             int cnt = 0;

  2429             while (type.charAt(cnt) == '[') {

  2430                 cnt++;

  2431             }

  2432             if (type.charAt(cnt) == 'L') {

  2433                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2434                 emitNoFlush(smapper,

  2435                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2436                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2437                 );

  2438             } else {

  2439                 emitNoFlush(smapper,

  2440                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2441                      smapper.getT(0, VarType.REFERENCE, false), type

  2442                 );

  2443             }

  2444         }

  2445     }

  2447     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2448         for (int j = prev; j <= i; j++) {

  2449             append(" ");

  2450             final int cc = readUByte(byteCodes, j);

  2451             append(Integer.toString(cc));

  2452         }

  2453     }

  2455     @JavaScriptBody(args = "msg", body = "")

  2456     private static void println(String msg) {

  2457         System.err.println(msg);

  2458     }

  2459 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Fri, 27 Feb 2015 20:55:00 +0100
changeset 1801	a29572878b0e
parent 1800	65cab8539582
child 1810	260d731c9504
permissions	-rw-r--r--