hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@ea12a3bb4b33

     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 java.util.Arrays;

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

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

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

    27  *

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

    29  */

    30 abstract class ByteCodeToJavaScript implements Appendable {

    31     private ClassData jc;

    32     private final Appendable out;

    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     String accessClassFalse(String classOperation) {

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

    91             return "c";

    92         }

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

    94     }

    96     protected String accessField(String object, String mangledName,

    97                                  String[] fieldInfoName) throws IOException {

    98         return object + "." + mangledName;

    99     }

   101     protected String accessStaticMethod(

   102                              String object,

   103                              String mangledName,

   104                              String[] fieldInfoName) throws IOException {

   105         return object + "." + mangledName;

   106     }

   108     protected String accessVirtualMethod(

   109             String object,

   110             String mangledName,

   111             String[] fieldInfoName,

   112             int params

   113     ) throws IOException {

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

   115     }

   117     protected void declaredClass(ClassData classData, String mangledName)

   118             throws IOException {

   119     }

   121     protected void declaredField(FieldData fieldData,

   122                                  String destObject,

   123                                  String mangledName) throws IOException {

   124     }

   126     protected void declaredMethod(MethodData methodData,

   127                                   String destObject,

   128                                   String mangledName) throws IOException {

   129     }

   131     /** Prints out a debug message.

   132      *

   133      * @param msg the message

   134      * @return true if the message has been printed

   135      * @throws IOException

   136      */

   137     boolean debug(String msg) throws IOException {

   138         append(msg);

   139         return true;

   140     }

   142     /**

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

   144      *

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

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

   147      *

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

   149      */

   151     public String compile(InputStream classFile) throws IOException {

   152         return compile(new ClassData(classFile));

   153     }

   155     protected String compile(ClassData classData) throws IOException {

   156         this.jc = classData;

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

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

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

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

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

   162             );

   163         }

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

   165         {

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

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

   168                 "resource", "processByteCode"

   169             );

   170             if (arr != null) {

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

   172                     requireScript(arr[0]);

   173                 }

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

   175                     return null;

   176                 }

   177             }

   178         }

   179         final String jsResource;

   180         {

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

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

   183                 "value"

   184             );

   185             if (arr != null) {

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

   187                     jsResource = arr[0];

   188                 } else {

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

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

   191                 }

   192             } else {

   193                 jsResource = null;

   194             }

   195         }

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

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

   198             "container", "prototype"

   199         );

   200         StringArray toInitilize = new StringArray();

   201         final String className = className(jc);

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

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

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

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

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

   207         if (proto == null) {

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

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

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

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

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

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

   214         } else {

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

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

   217                 proto[0] = "p";

   218             }

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

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

   221         }

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

   223             if (v.isStatic()) {

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

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

   226                         continue;

   227                     }

   228                 }

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

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

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

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

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

   234             } else {

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

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

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

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

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

   240                    .append("; };");

   241             }

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

   244         }

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

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

   247             if (javaScriptOnly(onlyArr)) continue;

   248             String destObject;

   249             String mn;

   250             append("\n    ");

   251             if (m.isStatic()) {

   252                 destObject = "c";

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

   254             } else {

   255                 if (m.isConstructor()) {

   256                     destObject = "CLS";

   257                     mn = generateInstanceMethod(destObject, m);

   258                 } else {

   259                     destObject = "c";

   260                     mn = generateInstanceMethod(destObject, m);

   261                 }

   262             }

   263             declaredMethod(m, destObject, mn);

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

   265             if (runAnno != null) {

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

   267                 generateAnno(jc, runAnno);

   268                 append("\n    };");

   269             }

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

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

   272         }

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

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

   275         String instOfName = "$instOf_" + className;

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

   277         if (jc.isInterface()) {

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

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

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

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

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

   283                     append("\n        try {");

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

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

   286                     append("\n        }");

   287                 }

   288             }

   289         }

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

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

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

   293             requireReference(superInterface);

   294         }

   295         append("\n    }");

   296         append("\n    try {");

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

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

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

   300         append("\n    }");

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

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

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

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

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

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

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

   308         {

   309             boolean first = true;

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

   311                 if (!first) {

   312                     append(",");

   313                 }

   314                 requireReference(intrfc);

   315                 String mangledIface = mangleClassName(intrfc);

   316                 append("\n        ");

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

   318                 first = false;

   319             }

   320         }

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

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

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

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

   325         if (classAnno != null) {

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

   327             generateAnno(jc, classAnno);

   328             append("\n    };");

   329         }

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

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

   332         }

   334         if (jsResource != null) {

   335             requireResource(jsResource);

   336         }

   338         append("\n  }");

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

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

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

   342         append("\n    }");

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

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

   345             if (javaScriptOnly(onlyArr)) continue;

   346             if (!v.isStatic()) {

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

   348                     append(className).append('_').

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

   350             }

   351         }

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

   353         append("\n  }");

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

   355         append("\n};");

   357         declaredClass(jc, className);

   359 //        StringBuilder sb = new StringBuilder();

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

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

   362 //        }

   363         return "";

   364     }

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

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

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

   369             "name", "value"

   370         );

   371         if (only != null) {

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

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

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

   375             }

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

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

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

   379             }

   380             return true;

   381         }

   382         return false;

   383     }

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

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

   386         if (jsb != null) {

   387             return jsb;

   388         }

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

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

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

   392             if (defineProp) {

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

   394             } else {

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

   396             }

   397         }

   398         return mn;

   399     }

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

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

   403         if (jsb != null) {

   404             return jsb;

   405         }

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

   407         generateMethod(destObject, mn, m);

   408         return mn;

   409     }

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

   412             throws IOException {

   413         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   414         TrapDataIterator trap = m.getTrapDataIterator();

   415         final LocalsMapper lmapper =

   416                 new LocalsMapper(stackMapIterator.getArguments());

   418         boolean defineProp =

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

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

   422         if (defineProp) {

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

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

   425         } else {

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

   427         }

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

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

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

   432         if (byteCodes == null) {

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

   434                .append(jc.getClassName()).append('.')

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

   436             if (defineProp) {

   437                 append("}});");

   438             } else {

   439                 append("};");

   440             }

   441             return defineProp;

   442         }

   444         final StackMapper smapper = new StackMapper();

   446         if (!m.isStatic()) {

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

   448         }

   450         int lastStackFrame;

   451         TrapData[] previousTrap = null;

   452         boolean wide = false;

   453         boolean didBranches;

   454         if (stackMapIterator.isEmpty()) {

   455             didBranches = false;

   456             lastStackFrame = 0;

   457         } else {

   458             didBranches = true;

   459             lastStackFrame = -1;

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

   461         }

   463         int openBraces = 0;

   464         int topMostLabel = 0;

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

   466             int prev = i;

   467             outChanged = false;

   468             stackMapIterator.advanceTo(i);

   469             boolean changeInCatch = trap.advanceTo(i);

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

   471                 if (previousTrap != null) {

   472                     generateCatch(previousTrap, i, topMostLabel);

   473                     previousTrap = null;

   474                 }

   475             }

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

   477                 smapper.flush(this);

   478                 if (i != 0) {

   479                     append("    }\n");

   480                 }

   481                 if (openBraces > 64) {

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

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

   484                     }

   485                     openBraces = 1;

   486                     topMostLabel = i;

   487                 }

   489                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   493                 openBraces++;

   494                 changeInCatch = true;

   495             } else {

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

   497             }

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

   499                 append("try {");

   500                 previousTrap = trap.current();

   501             }

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

   503             switch (c) {

   504                 case opc_aload_0:

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

   506                     break;

   507                 case opc_iload_0:

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

   509                     break;

   510                 case opc_lload_0:

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

   512                     break;

   513                 case opc_fload_0:

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

   515                     break;

   516                 case opc_dload_0:

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

   518                     break;

   519                 case opc_aload_1:

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

   521                     break;

   522                 case opc_iload_1:

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

   524                     break;

   525                 case opc_lload_1:

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

   527                     break;

   528                 case opc_fload_1:

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

   530                     break;

   531                 case opc_dload_1:

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

   533                     break;

   534                 case opc_aload_2:

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

   536                     break;

   537                 case opc_iload_2:

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

   539                     break;

   540                 case opc_lload_2:

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

   542                     break;

   543                 case opc_fload_2:

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

   545                     break;

   546                 case opc_dload_2:

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

   548                     break;

   549                 case opc_aload_3:

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

   551                     break;

   552                 case opc_iload_3:

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

   554                     break;

   555                 case opc_lload_3:

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

   557                     break;

   558                 case opc_fload_3:

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

   560                     break;

   561                 case opc_dload_3:

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

   563                     break;

   564                 case opc_iload: {

   565                     ++i;

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

   567                                           : readUByte(byteCodes, i);

   568                     wide = false;

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

   570                     break;

   571                 }

   572                 case opc_lload: {

   573                     ++i;

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

   575                                           : readUByte(byteCodes, i);

   576                     wide = false;

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

   578                     break;

   579                 }

   580                 case opc_fload: {

   581                     ++i;

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

   583                                           : readUByte(byteCodes, i);

   584                     wide = false;

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

   586                     break;

   587                 }

   588                 case opc_dload: {

   589                     ++i;

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

   591                                           : readUByte(byteCodes, i);

   592                     wide = false;

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

   594                     break;

   595                 }

   596                 case opc_aload: {

   597                     ++i;

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

   599                                           : readUByte(byteCodes, i);

   600                     wide = false;

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

   602                     break;

   603                 }

   604                 case opc_istore: {

   605                     ++i;

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

   607                                           : readUByte(byteCodes, i);

   608                     wide = false;

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

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

   611                     break;

   612                 }

   613                 case opc_lstore: {

   614                     ++i;

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

   616                                           : readUByte(byteCodes, i);

   617                     wide = false;

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

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

   620                     break;

   621                 }

   622                 case opc_fstore: {

   623                     ++i;

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

   625                                           : readUByte(byteCodes, i);

   626                     wide = false;

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

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

   629                     break;

   630                 }

   631                 case opc_dstore: {

   632                     ++i;

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

   634                                           : readUByte(byteCodes, i);

   635                     wide = false;

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

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

   638                     break;

   639                 }

   640                 case opc_astore: {

   641                     ++i;

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

   643                                           : readUByte(byteCodes, i);

   644                     wide = false;

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

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

   647                     break;

   648                 }

   649                 case opc_astore_0:

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

   651                     break;

   652                 case opc_istore_0:

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

   654                     break;

   655                 case opc_lstore_0:

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

   657                     break;

   658                 case opc_fstore_0:

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

   660                     break;

   661                 case opc_dstore_0:

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

   663                     break;

   664                 case opc_astore_1:

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

   666                     break;

   667                 case opc_istore_1:

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

   669                     break;

   670                 case opc_lstore_1:

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

   672                     break;

   673                 case opc_fstore_1:

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

   675                     break;

   676                 case opc_dstore_1:

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

   678                     break;

   679                 case opc_astore_2:

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

   681                     break;

   682                 case opc_istore_2:

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

   684                     break;

   685                 case opc_lstore_2:

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

   687                     break;

   688                 case opc_fstore_2:

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

   690                     break;

   691                 case opc_dstore_2:

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

   693                     break;

   694                 case opc_astore_3:

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

   696                     break;

   697                 case opc_istore_3:

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

   699                     break;

   700                 case opc_lstore_3:

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

   702                     break;

   703                 case opc_fstore_3:

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

   705                     break;

   706                 case opc_dstore_3:

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

   708                     break;

   709                 case opc_iadd:

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

   711                     break;

   712                 case opc_ladd:

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

   714                     break;

   715                 case opc_fadd:

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

   717                     break;

   718                 case opc_dadd:

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

   720                     break;

   721                 case opc_isub:

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

   723                     break;

   724                 case opc_lsub:

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

   726                     break;

   727                 case opc_fsub:

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

   729                     break;

   730                 case opc_dsub:

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

   732                     break;

   733                 case opc_imul:

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

   735                     break;

   736                 case opc_lmul:

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

   738                     break;

   739                 case opc_fmul:

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

   741                     break;

   742                 case opc_dmul:

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

   744                     break;

   745                 case opc_idiv:

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

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

   748                     break;

   749                 case opc_ldiv:

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

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

   752                     break;

   753                 case opc_fdiv:

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

   755                     break;

   756                 case opc_ddiv:

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

   758                     break;

   759                 case opc_irem:

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

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

   762                     break;

   763                 case opc_lrem:

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

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

   766                     break;

   767                 case opc_frem:

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

   769                     break;

   770                 case opc_drem:

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

   772                     break;

   773                 case opc_iand:

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

   775                     break;

   776                 case opc_land:

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

   778                     break;

   779                 case opc_ior:

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

   781                     break;

   782                 case opc_lor:

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

   784                     break;

   785                 case opc_ixor:

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

   787                     break;

   788                 case opc_lxor:

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

   790                     break;

   791                 case opc_ineg:

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

   793                     break;

   794                 case opc_lneg:

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

   796                     break;

   797                 case opc_fneg:

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

   799                     break;

   800                 case opc_dneg:

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

   802                     break;

   803                 case opc_ishl:

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

   805                     break;

   806                 case opc_lshl:

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

   808                     break;

   809                 case opc_ishr:

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

   811                     break;

   812                 case opc_lshr:

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

   814                     break;

   815                 case opc_iushr:

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

   817                     break;

   818                 case opc_lushr:

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

   820                     break;

   821                 case opc_iinc: {

   822                     ++i;

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

   824                                              : readUByte(byteCodes, i);

   825                     ++i;

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

   827                                             : byteCodes[i];

   828                     wide = false;

   829                     if (incrBy == 1) {

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

   831                     } else {

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

   833                              lmapper.getI(varIndx),

   834                              Integer.toString(incrBy));

   835                     }

   836                     break;

   837                 }

   838                 case opc_return:

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

   840                     break;

   841                 case opc_ireturn:

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

   843                     break;

   844                 case opc_lreturn:

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

   846                     break;

   847                 case opc_freturn:

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

   849                     break;

   850                 case opc_dreturn:

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

   852                     break;

   853                 case opc_areturn:

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

   855                     break;

   856                 case opc_i2l:

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

   858                     break;

   859                 case opc_i2f:

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

   861                     break;

   862                 case opc_i2d:

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

   864                     break;

   865                 case opc_l2i:

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

   867                     break;

   868                     // max int check?

   869                 case opc_l2f:

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

   871                     break;

   872                 case opc_l2d:

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

   874                     break;

   875                 case opc_f2d:

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

   877                          smapper.getF(0));

   878                     break;

   879                 case opc_d2f:

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

   881                          smapper.getD(0));

   882                     break;

   883                 case opc_f2i:

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

   885                          smapper.getF(0));

   886                     break;

   887                 case opc_f2l:

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

   889                          smapper.getF(0));

   890                     break;

   891                 case opc_d2i:

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

   893                          smapper.getD(0));

   894                     break;

   895                 case opc_d2l:

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

   897                     break;

   898                 case opc_i2b:

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

   900                     break;

   901                 case opc_i2c:

   902                 case opc_i2s:

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

   904                     break;

   905                 case opc_aconst_null:

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

   907                     break;

   908                 case opc_iconst_m1:

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

   910                     break;

   911                 case opc_iconst_0:

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

   913                     break;

   914                 case opc_dconst_0:

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

   916                     break;

   917                 case opc_lconst_0:

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

   919                     break;

   920                 case opc_fconst_0:

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

   922                     break;

   923                 case opc_iconst_1:

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

   925                     break;

   926                 case opc_lconst_1:

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

   928                     break;

   929                 case opc_fconst_1:

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

   931                     break;

   932                 case opc_dconst_1:

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

   934                     break;

   935                 case opc_iconst_2:

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

   937                     break;

   938                 case opc_fconst_2:

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

   940                     break;

   941                 case opc_iconst_3:

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

   943                     break;

   944                 case opc_iconst_4:

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

   946                     break;

   947                 case opc_iconst_5:

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

   949                     break;

   950                 case opc_ldc: {

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

   952                     String v = encodeConstant(indx);

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

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

   955                     break;

   956                 }

   957                 case opc_ldc_w:

   958                 case opc_ldc2_w: {

   959                     int indx = readUShortArg(byteCodes, i);

   960                     i += 2;

   961                     String v = encodeConstant(indx);

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

   963                     if (type == VarType.LONG) {

   964                         final Long lv = new Long(v);

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

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

   967                         if (hi == 0) {

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

   969                         } else {

   970                             smapper.assign(this, VarType.LONG,

   971                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

   972                                     Integer.toHexString(low) + ")"

   973                             );

   974                         }

   975                     } else {

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

   977                     }

   978                     break;

   979                 }

   980                 case opc_lcmp:

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

   982                     break;

   983                 case opc_fcmpl:

   984                 case opc_fcmpg:

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

   986                     break;

   987                 case opc_dcmpl:

   988                 case opc_dcmpg:

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

   990                     break;

   991                 case opc_if_acmpeq:

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

   993                                    "===", topMostLabel);

   994                     break;

   995                 case opc_if_acmpne:

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

   997                                    "!==", topMostLabel);

   998                     break;

   999                 case opc_if_icmpeq:

  1000                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1001                                    "==", topMostLabel);

  1002                     break;

  1003                 case opc_ifeq: {

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

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

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

  1007                     i += 2;

  1008                     break;

  1009                 }

  1010                 case opc_ifne: {

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

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

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

  1014                     i += 2;

  1015                     break;

  1016                 }

  1017                 case opc_iflt: {

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

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

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

  1021                     i += 2;

  1022                     break;

  1023                 }

  1024                 case opc_ifle: {

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

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

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

  1028                     i += 2;

  1029                     break;

  1030                 }

  1031                 case opc_ifgt: {

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

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

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

  1035                     i += 2;

  1036                     break;

  1037                 }

  1038                 case opc_ifge: {

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

  1040                     emitIf(smapper, this, "if ((@1) >= 0) ",

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

  1042                     i += 2;

  1043                     break;

  1044                 }

  1045                 case opc_ifnonnull: {

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

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

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

  1049                     i += 2;

  1050                     break;

  1051                 }

  1052                 case opc_ifnull: {

  1053                     int indx = i + readShortArg(byteCodes, i);

  1054                     emitIf(smapper, this, "if ((@1) === null) ",

  1055                          smapper.popA(), i, indx, topMostLabel);

  1056                     i += 2;

  1057                     break;

  1058                 }

  1059                 case opc_if_icmpne:

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

  1061                                    "!=", topMostLabel);

  1062                     break;

  1063                 case opc_if_icmplt:

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

  1065                                    "<", topMostLabel);

  1066                     break;

  1067                 case opc_if_icmple:

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

  1069                                    "<=", topMostLabel);

  1070                     break;

  1071                 case opc_if_icmpgt:

  1072                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1073                                    ">", topMostLabel);

  1074                     break;

  1075                 case opc_if_icmpge:

  1076                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1077                                    ">=", topMostLabel);

  1078                     break;

  1079                 case opc_goto: {

  1080                     smapper.flush(this);

  1081                     int indx = i + readShortArg(byteCodes, i);

  1082                     goTo(this, i, indx, topMostLabel);

  1083                     i += 2;

  1084                     break;

  1085                 }

  1086                 case opc_lookupswitch: {

  1087                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1088                     break;

  1089                 }

  1090                 case opc_tableswitch: {

  1091                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1092                     break;

  1093                 }

  1094                 case opc_invokeinterface: {

  1095                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1096                     break;

  1097                 }

  1098                 case opc_invokevirtual:

  1099                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1100                     break;

  1101                 case opc_invokespecial:

  1102                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1103                     break;

  1104                 case opc_invokestatic:

  1105                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1106                     break;

  1107                 case opc_invokedynamic: {

  1108                     int indx = readUShortArg(byteCodes, i);

  1109                     println("invoke dynamic: " + indx);

  1110                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1111                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1112                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1113                     println("  type: " + methodHandle.cpx1);

  1114                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1115                     String mcn = mangleClassName(mi[0]);

  1116                     char[] returnType = {'V'};

  1117                     StringBuilder cnt = new StringBuilder();

  1118                     String mn = findMethodName(mi, cnt, returnType);

  1119                     StringBuilder sb = new StringBuilder();

  1120                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1121                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1122                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1123                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1124                     sb.append("  mn   : ").append(mn).append("\n");

  1125                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1126                     throw new IOException(sb.toString());

  1127                     /*

  1128                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1129                     String type = jc.StringValue(nameAndType.cpx2);

  1130                     String object = accessClass(mcn) + "(false)";

  1131                     if (mn.startsWith("cons_")) {

  1132                         object += ".constructor";

  1133                     }

  1134                     append("var metHan = ");

  1135                     append(accessStaticMethod(object, mn, mi));

  1136                     append('(');

  1137                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1138                     append(lookup);

  1139                     append(", '").append(mi[1]).append("', ");

  1140                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1141                     append(methodType).append("'").append(type).append("', null)");

  1142 //                    if (numArguments > 0) {

  1143 //                        append(vars[0]);

  1144 //                        for (int j = 1; j < numArguments; ++j) {

  1145 //                            append(", ");

  1146 //                            append(vars[j]);

  1147 //                        }

  1148 //                    }

  1149                     append(");");

  1150                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1151                     i += 4;

  1152                     break;

  1153                     */

  1154                 }

  1155                 case opc_new: {

  1156                     int indx = readUShortArg(byteCodes, i);

  1157                     String ci = jc.getClassName(indx);

  1158                     emit(smapper, this, "var @1 = new @2;",

  1159                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1160                     addReference(ci);

  1161                     i += 2;

  1162                     break;

  1163                 }

  1164                 case opc_newarray:

  1165                     int atype = readUByte(byteCodes, ++i);

  1166                     generateNewArray(atype, smapper);

  1167                     break;

  1168                 case opc_anewarray: {

  1169                     int type = readUShortArg(byteCodes, i);

  1170                     i += 2;

  1171                     generateANewArray(type, smapper);

  1172                     break;

  1173                 }

  1174                 case opc_multianewarray: {

  1175                     int type = readUShortArg(byteCodes, i);

  1176                     i += 2;

  1177                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1178                     break;

  1179                 }

  1180                 case opc_arraylength:

  1181                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1182                     break;

  1183                 case opc_lastore:

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

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

  1186                     break;

  1187                 case opc_fastore:

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

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

  1190                     break;

  1191                 case opc_dastore:

  1192                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1193                          smapper.popD(), smapper.popI(), smapper.popA());

  1194                     break;

  1195                 case opc_aastore:

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

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

  1198                     break;

  1199                 case opc_iastore:

  1200                 case opc_bastore:

  1201                 case opc_castore:

  1202                 case opc_sastore:

  1203                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1204                          smapper.popI(), smapper.popI(), smapper.popA());

  1205                     break;

  1206                 case opc_laload:

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

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

  1209                     break;

  1210                 case opc_faload:

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

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

  1213                     break;

  1214                 case opc_daload:

  1215                     smapper.replace(this, VarType.DOUBLE, "Array.at(@2, @1)",

  1216                          smapper.popI(), smapper.getA(0));

  1217                     break;

  1218                 case opc_aaload:

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

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

  1221                     break;

  1222                 case opc_iaload:

  1223                 case opc_baload:

  1224                 case opc_caload:

  1225                 case opc_saload:

  1226                     smapper.replace(this, VarType.INTEGER, "Array.at(@2, @1)",

  1227                          smapper.popI(), smapper.getA(0));

  1228                     break;

  1229                 case opc_pop:

  1230                 case opc_pop2:

  1231                     smapper.pop(1);

  1232                     debug("/* pop */");

  1233                     break;

  1234                 case opc_dup: {

  1235                     final Variable v = smapper.get(0);

  1236                     if (smapper.isDirty()) {

  1237                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1238                     } else {

  1239                         smapper.assign(this, v.getType(), v);

  1240                     }

  1241                     break;

  1242                 }

  1243                 case opc_dup2: {

  1244                     final Variable vi1 = smapper.get(0);

  1246                     if (vi1.isCategory2()) {

  1247                         emit(smapper, this, "var @1 = @2;",

  1248                              smapper.pushT(vi1.getType()), vi1);

  1249                     } else {

  1250                         final Variable vi2 = smapper.get(1);

  1251                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1252                              smapper.pushT(vi2.getType()), vi2,

  1253                              smapper.pushT(vi1.getType()), vi1);

  1254                     }

  1255                     break;

  1256                 }

  1257                 case opc_dup_x1: {

  1258                     final Variable vi1 = smapper.pop(this);

  1259                     final Variable vi2 = smapper.pop(this);

  1260                     final Variable vo3 = smapper.pushT(vi1.getType());

  1261                     final Variable vo2 = smapper.pushT(vi2.getType());

  1262                     final Variable vo1 = smapper.pushT(vi1.getType());

  1264                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1265                          vo1, vi1, vo2, vi2, vo3, vo1);

  1266                     break;

  1267                 }

  1268                 case opc_dup2_x1: {

  1269                     final Variable vi1 = smapper.pop(this);

  1270                     final Variable vi2 = smapper.pop(this);

  1272                     if (vi1.isCategory2()) {

  1273                         final Variable vo3 = smapper.pushT(vi1.getType());

  1274                         final Variable vo2 = smapper.pushT(vi2.getType());

  1275                         final Variable vo1 = smapper.pushT(vi1.getType());

  1277                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1278                              vo1, vi1, vo2, vi2, vo3, vo1);

  1279                     } else {

  1280                         final Variable vi3 = smapper.pop(this);

  1281                         final Variable vo5 = smapper.pushT(vi2.getType());

  1282                         final Variable vo4 = smapper.pushT(vi1.getType());

  1283                         final Variable vo3 = smapper.pushT(vi3.getType());

  1284                         final Variable vo2 = smapper.pushT(vi2.getType());

  1285                         final Variable vo1 = smapper.pushT(vi1.getType());

  1287                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1288                              vo1, vi1, vo2, vi2, vo3, vi3);

  1289                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1290                              vo4, vo1, vo5, vo2);

  1291                     }

  1292                     break;

  1293                 }

  1294                 case opc_dup_x2: {

  1295                     final Variable vi1 = smapper.pop(this);

  1296                     final Variable vi2 = smapper.pop(this);

  1298                     if (vi2.isCategory2()) {

  1299                         final Variable vo3 = smapper.pushT(vi1.getType());

  1300                         final Variable vo2 = smapper.pushT(vi2.getType());

  1301                         final Variable vo1 = smapper.pushT(vi1.getType());

  1303                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1304                              vo1, vi1, vo2, vi2, vo3, vo1);

  1305                     } else {

  1306                         final Variable vi3 = smapper.pop(this);

  1307                         final Variable vo4 = smapper.pushT(vi1.getType());

  1308                         final Variable vo3 = smapper.pushT(vi3.getType());

  1309                         final Variable vo2 = smapper.pushT(vi2.getType());

  1310                         final Variable vo1 = smapper.pushT(vi1.getType());

  1312                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1313                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1314                     }

  1315                     break;

  1316                 }

  1317                 case opc_dup2_x2: {

  1318                     final Variable vi1 = smapper.pop(this);

  1319                     final Variable vi2 = smapper.pop(this);

  1321                     if (vi1.isCategory2()) {

  1322                         if (vi2.isCategory2()) {

  1323                             final Variable vo3 = smapper.pushT(vi1.getType());

  1324                             final Variable vo2 = smapper.pushT(vi2.getType());

  1325                             final Variable vo1 = smapper.pushT(vi1.getType());

  1327                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1328                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1329                         } else {

  1330                             final Variable vi3 = smapper.pop(this);

  1331                             final Variable vo4 = smapper.pushT(vi1.getType());

  1332                             final Variable vo3 = smapper.pushT(vi3.getType());

  1333                             final Variable vo2 = smapper.pushT(vi2.getType());

  1334                             final Variable vo1 = smapper.pushT(vi1.getType());

  1336                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1337                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1338                         }

  1339                     } else {

  1340                         final Variable vi3 = smapper.pop(this);

  1342                         if (vi3.isCategory2()) {

  1343                             final Variable vo5 = smapper.pushT(vi2.getType());

  1344                             final Variable vo4 = smapper.pushT(vi1.getType());

  1345                             final Variable vo3 = smapper.pushT(vi3.getType());

  1346                             final Variable vo2 = smapper.pushT(vi2.getType());

  1347                             final Variable vo1 = smapper.pushT(vi1.getType());

  1349                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1350                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1351                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1352                                  vo4, vo1, vo5, vo2);

  1353                         } else {

  1354                             final Variable vi4 = smapper.pop(this);

  1355                             final Variable vo6 = smapper.pushT(vi2.getType());

  1356                             final Variable vo5 = smapper.pushT(vi1.getType());

  1357                             final Variable vo4 = smapper.pushT(vi4.getType());

  1358                             final Variable vo3 = smapper.pushT(vi3.getType());

  1359                             final Variable vo2 = smapper.pushT(vi2.getType());

  1360                             final Variable vo1 = smapper.pushT(vi1.getType());

  1362                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1363                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1364                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1365                                  vo5, vo1, vo6, vo2);

  1366                         }

  1367                     }

  1368                     break;

  1369                 }

  1370                 case opc_swap: {

  1371                     final Variable vi1 = smapper.get(0);

  1372                     final Variable vi2 = smapper.get(1);

  1374                     if (vi1.getType() == vi2.getType()) {

  1375                         final Variable tmp = smapper.pushT(vi1.getType());

  1377                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1378                              tmp, vi1, vi2);

  1379                         smapper.pop(1);

  1380                     } else {

  1381                         smapper.pop(2);

  1382                         smapper.pushT(vi1.getType());

  1383                         smapper.pushT(vi2.getType());

  1384                     }

  1385                     break;

  1386                 }

  1387                 case opc_bipush:

  1388                     smapper.assign(this, VarType.INTEGER,

  1389                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1390                     break;

  1391                 case opc_sipush:

  1392                     smapper.assign(this, VarType.INTEGER,

  1393                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1394                     );

  1395                     i += 2;

  1396                     break;

  1397                 case opc_getfield: {

  1398                     int indx = readUShortArg(byteCodes, i);

  1399                     String[] fi = jc.getFieldInfoName(indx);

  1400                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1401                     final String mangleClass = mangleClassName(fi[0]);

  1402                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1403                     smapper.replace(this, type, "@2.call(@1)",

  1404                          smapper.getA(0),

  1405                          accessField(mangleClassAccess,

  1406                                      "_" + fi[1], fi)

  1407                     );

  1408                     i += 2;

  1409                     addReference(fi[0]);

  1410                     break;

  1411                 }

  1412                 case opc_putfield: {

  1413                     int indx = readUShortArg(byteCodes, i);

  1414                     String[] fi = jc.getFieldInfoName(indx);

  1415                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1416                     final String mangleClass = mangleClassName(fi[0]);

  1417                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1418                     emit(smapper, this, "@3.call(@2, @1);",

  1419                          smapper.popT(type),

  1420                          smapper.popA(),

  1421                          accessField(mangleClassAccess,

  1422                                      "_" + fi[1], fi));

  1423                     i += 2;

  1424                     addReference(fi[0]);

  1425                     break;

  1426                 }

  1427                 case opc_getstatic: {

  1428                     int indx = readUShortArg(byteCodes, i);

  1429                     String[] fi = jc.getFieldInfoName(indx);

  1430                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1431                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1432                     String af = accessField(ac, "_" + fi[1], fi);

  1433                     smapper.assign(this, type, af + "()");

  1434                     i += 2;

  1435                     addReference(fi[0]);

  1436                     break;

  1437                 }

  1438                 case opc_putstatic: {

  1439                     int indx = readUShortArg(byteCodes, i);

  1440                     String[] fi = jc.getFieldInfoName(indx);

  1441                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1442                     emit(smapper, this, "@1._@2(@3);",

  1443                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1444                          smapper.popT(type));

  1445                     i += 2;

  1446                     addReference(fi[0]);

  1447                     break;

  1448                 }

  1449                 case opc_checkcast: {

  1450                     int indx = readUShortArg(byteCodes, i);

  1451                     generateCheckcast(indx, smapper);

  1452                     i += 2;

  1453                     break;

  1454                 }

  1455                 case opc_instanceof: {

  1456                     int indx = readUShortArg(byteCodes, i);

  1457                     generateInstanceOf(indx, smapper);

  1458                     i += 2;

  1459                     break;

  1460                 }

  1461                 case opc_athrow: {

  1462                     final CharSequence v = smapper.popA();

  1463                     smapper.clear();

  1465                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1466                          smapper.pushA(), v);

  1467                     break;

  1468                 }

  1470                 case opc_monitorenter: {

  1471                     debug("/* monitor enter */");

  1472                     smapper.popA();

  1473                     break;

  1474                 }

  1476                 case opc_monitorexit: {

  1477                     debug("/* monitor exit */");

  1478                     smapper.popA();

  1479                     break;

  1480                 }

  1482                 case opc_wide:

  1483                     wide = true;

  1484                     break;

  1486                 default: {

  1487                     wide = false;

  1488                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1489                          Integer.toString(c));

  1490                 }

  1491             }

  1492             if (debug(" //")) {

  1493                 generateByteCodeComment(prev, i, byteCodes);

  1494             }

  1495             if (outChanged) {

  1496                 append("\n");

  1497             }

  1498         }

  1499         if (previousTrap != null) {

  1500             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1501         }

  1502         if (didBranches) {

  1503             append("\n    }\n");

  1504         }

  1505         while (openBraces-- > 0) {

  1506             append('}');

  1507         }

  1508         if (defineProp) {

  1509             append("\n}});");

  1510         } else {

  1511             append("\n};");

  1512         }

  1513         return defineProp;

  1514     }

  1516     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1517         int i, final CharSequence v2, final CharSequence v1,

  1518         final String test, int topMostLabel

  1519     ) throws IOException {

  1520         mapper.flush(this);

  1521         int indx = i + readShortArg(byteCodes, i);

  1522         append("if ((").append(v1)

  1523            .append(") ").append(test).append(" (")

  1524            .append(v2).append(")) ");

  1525         goTo(this, i, indx, topMostLabel);

  1526         return i + 2;

  1527     }

  1529     private int readInt4(byte[] byteCodes, int offset) {

  1530         final int d = byteCodes[offset + 0] << 24;

  1531         final int c = byteCodes[offset + 1] << 16;

  1532         final int b = byteCodes[offset + 2] << 8;

  1533         final int a = byteCodes[offset + 3];

  1534         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1535     }

  1536     private static int readUByte(byte[] byteCodes, int offset) {

  1537         return byteCodes[offset] & 0xff;

  1538     }

  1540     private static int readUShort(byte[] byteCodes, int offset) {

  1541         return ((byteCodes[offset] & 0xff) << 8)

  1542                     | (byteCodes[offset + 1] & 0xff);

  1543     }

  1544     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1545         return readUShort(byteCodes, offsetInstruction + 1);

  1546     }

  1548     private static int readShort(byte[] byteCodes, int offset) {

  1549         int signed = byteCodes[offset];

  1550         byte b0 = (byte)signed;

  1551         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1552     }

  1553     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1554         return readShort(byteCodes, offsetInstruction + 1);

  1555     }

  1557     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1558         int i = 0;

  1559         Boolean count = null;

  1560         boolean array = false;

  1561         sig.append("__");

  1562         int firstPos = sig.length();

  1563         while (i < descriptor.length()) {

  1564             char ch = descriptor.charAt(i++);

  1565             switch (ch) {

  1566                 case '(':

  1567                     count = true;

  1568                     continue;

  1569                 case ')':

  1570                     count = false;

  1571                     continue;

  1572                 case 'B':

  1573                 case 'C':

  1574                 case 'D':

  1575                 case 'F':

  1576                 case 'I':

  1577                 case 'J':

  1578                 case 'S':

  1579                 case 'Z':

  1580                     if (count) {

  1581                         if (array) {

  1582                             sig.append("_3");

  1583                         }

  1584                         sig.append(ch);

  1585                         if (ch == 'J' || ch == 'D') {

  1586                             cnt.append('1');

  1587                         } else {

  1588                             cnt.append('0');

  1589                         }

  1590                     } else {

  1591                         sig.insert(firstPos, ch);

  1592                         if (array) {

  1593                             returnType[0] = '[';

  1594                             sig.insert(firstPos, "_3");

  1595                         } else {

  1596                             returnType[0] = ch;

  1597                         }

  1598                     }

  1599                     array = false;

  1600                     continue;

  1601                 case 'V':

  1602                     assert !count;

  1603                     returnType[0] = 'V';

  1604                     sig.insert(firstPos, 'V');

  1605                     continue;

  1606                 case 'L':

  1607                     int next = descriptor.indexOf(';', i);

  1608                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1609                     if (count) {

  1610                         if (array) {

  1611                             sig.append("_3");

  1612                         }

  1613                         sig.append(realSig);

  1614                         cnt.append('0');

  1615                     } else {

  1616                         sig.insert(firstPos, realSig);

  1617                         if (array) {

  1618                             sig.insert(firstPos, "_3");

  1619                         }

  1620                         returnType[0] = 'L';

  1621                     }

  1622                     i = next + 1;

  1623                     array = false;

  1624                     continue;

  1625                 case '[':

  1626                     array = true;

  1627                     continue;

  1628                 default:

  1629                     throw new IllegalStateException("Invalid char: " + ch);

  1630             }

  1631         }

  1632     }

  1634     static String mangleSig(String sig) {

  1635         return mangleSig(sig, 0, sig.length());

  1636     }

  1638     private static String mangleMethodName(String name) {

  1639         StringBuilder sb = new StringBuilder(name.length() * 2);

  1640         int last = name.length();

  1641         for (int i = 0; i < last; i++) {

  1642             final char ch = name.charAt(i);

  1643             switch (ch) {

  1644                 case '_': sb.append("_1"); break;

  1645                 default: sb.append(ch); break;

  1646             }

  1647         }

  1648         return sb.toString();

  1649     }

  1650     private static String mangleSig(String txt, int first, int last) {

  1651         StringBuilder sb = new StringBuilder((last - first) * 2);

  1652         for (int i = first; i < last; i++) {

  1653             final char ch = txt.charAt(i);

  1654             switch (ch) {

  1655                 case '/': sb.append('_'); break;

  1656                 case '_': sb.append("_1"); break;

  1657                 case ';': sb.append("_2"); break;

  1658                 case '[': sb.append("_3"); break;

  1659                 default:

  1660                     if (Character.isJavaIdentifierPart(ch)) {

  1661                         sb.append(ch);

  1662                     } else {

  1663                         sb.append("_0");

  1664                         String hex = Integer.toHexString(ch).toLowerCase();

  1665                         for (int m = hex.length(); m < 4; m++) {

  1666                             sb.append("0");

  1667                         }

  1668                         sb.append(hex);

  1669                     }

  1670                 break;

  1671             }

  1672         }

  1673         return sb.toString();

  1674     }

  1676     private static String mangleClassName(String name) {

  1677         return mangleSig(name);

  1678     }

  1680     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1681         StringBuilder name = new StringBuilder();

  1682         if ("<init>".equals(m.getName())) { // NOI18N

  1683             name.append("cons"); // NOI18N

  1684         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1685             name.append("class"); // NOI18N

  1686         } else {

  1687             name.append(mangleMethodName(m.getName()));

  1688         }

  1690         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1691         return name.toString();

  1692     }

  1694     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1695         StringBuilder name = new StringBuilder();

  1696         String descr = mi[2];//mi.getDescriptor();

  1697         String nm= mi[1];

  1698         if ("<init>".equals(nm)) { // NOI18N

  1699             name.append("cons"); // NOI18N

  1700         } else {

  1701             name.append(mangleMethodName(nm));

  1702         }

  1703         countArgs(descr, returnType, name, cnt);

  1704         return name.toString();

  1705     }

  1707     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1708     throws IOException {

  1709         int methodIndex = readUShortArg(byteCodes, i);

  1710         String[] mi = jc.getFieldInfoName(methodIndex);

  1711         char[] returnType = { 'V' };

  1712         StringBuilder cnt = new StringBuilder();

  1713         String mn = findMethodName(mi, cnt, returnType);

  1715         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1716         final CharSequence[] vars = new CharSequence[numArguments];

  1718         for (int j = numArguments - 1; j >= 0; --j) {

  1719             vars[j] = mapper.popValue();

  1720         }

  1722         if ((

  1723             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1724             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1725         ) || (

  1726             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1727             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1728         )) {

  1729             if (vars[1] instanceof String) {

  1730                 String field = vars[1].toString();

  1731                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1732                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1733                 }

  1734             }

  1735         }

  1736         if (

  1737             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1738             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1739         ) {

  1740             if (vars[1] instanceof String) {

  1741                 String field = vars[2].toString();

  1742                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1743                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1744                 }

  1745             }

  1746         }

  1748         if (returnType[0] != 'V') {

  1749             mapper.flush(this);

  1750             append("var ")

  1751                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1752                .append(" = ");

  1753         }

  1755         final String in = mi[0];

  1756         String mcn;

  1757         if (callbacks && (

  1758             in.equals("org/apidesign/html/boot/spi/Fn") ||

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

  1760         )) {

  1761             mcn = "java_lang_Class";

  1762         } else {

  1763             mcn = mangleClassName(in);

  1764         }

  1765         String object = accessClassFalse(mcn);

  1766         if (mn.startsWith("cons_")) {

  1767             object += ".constructor";

  1768         }

  1769         append(accessStaticMethod(object, mn, mi));

  1770         if (isStatic) {

  1771             append('(');

  1772         } else {

  1773             append(".call(");

  1774         }

  1775         if (numArguments > 0) {

  1776             append(vars[0]);

  1777             for (int j = 1; j < numArguments; ++j) {

  1778                 append(", ");

  1779                 append(vars[j]);

  1780             }

  1781         }

  1782         append(");");

  1783         i += 2;

  1784         addReference(in);

  1785         return i;

  1786     }

  1787     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1788     throws IOException {

  1789         int methodIndex = readUShortArg(byteCodes, i);

  1790         String[] mi = jc.getFieldInfoName(methodIndex);

  1791         char[] returnType = { 'V' };

  1792         StringBuilder cnt = new StringBuilder();

  1793         String mn = findMethodName(mi, cnt, returnType);

  1795         final int numArguments = cnt.length() + 1;

  1796         final CharSequence[] vars =  new CharSequence[numArguments];

  1798         for (int j = numArguments - 1; j >= 0; --j) {

  1799             vars[j] = mapper.popValue();

  1800         }

  1802         if (returnType[0] != 'V') {

  1803             append("var ")

  1804                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1805                .append(" = ");

  1806         }

  1808         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1809         String sep = "";

  1810         for (int j = 1; j < numArguments; ++j) {

  1811             append(sep);

  1812             append(vars[j]);

  1813             sep = ", ";

  1814         }

  1815         append(");");

  1816         i += 2;

  1817         return i;

  1818     }

  1820     private void addReference(String cn) throws IOException {

  1821         if (requireReference(cn)) {

  1822             debug(" /* needs " + cn + " */");

  1823         }

  1824     }

  1826     private void outType(String d, StringBuilder out) {

  1827         int arr = 0;

  1828         while (d.charAt(0) == '[') {

  1829             out.append('A');

  1830             d = d.substring(1);

  1831         }

  1832         if (d.charAt(0) == 'L') {

  1833             assert d.charAt(d.length() - 1) == ';';

  1834             out.append(d.replace('/', '_').substring(0, d.length() - 1));

  1835         } else {

  1836             out.append(d);

  1837         }

  1838     }

  1840     private String encodeConstant(int entryIndex) throws IOException {

  1841         String[] classRef = { null };

  1842         String s = jc.stringValue(entryIndex, classRef);

  1843         if (classRef[0] != null) {

  1844             if (classRef[0].startsWith("[")) {

  1845                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1846             } else {

  1847                 addReference(classRef[0]);

  1848                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1849             }

  1850         }

  1851         return s;

  1852     }

  1854     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1855         byte[] arr = m.findAnnotationData(true);

  1856         if (arr == null) {

  1857             return null;

  1858         }

  1859         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1860         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1861         class P extends AnnotationParser {

  1862             public P() {

  1863                 super(false, true);

  1864             }

  1866             int cnt;

  1867             String[] args = new String[30];

  1868             String body;

  1869             boolean javacall;

  1870             boolean html4j;

  1872             @Override

  1873             protected void visitAttr(String type, String attr, String at, String value) {

  1874                 if (type.equals(jvmType)) {

  1875                     if ("body".equals(attr)) {

  1876                         body = value;

  1877                     } else if ("args".equals(attr)) {

  1878                         args[cnt++] = value;

  1879                     } else {

  1880                         throw new IllegalArgumentException(attr);

  1881                     }

  1882                 }

  1883                 if (type.equals(htmlType)) {

  1884                     html4j = true;

  1885                     if ("body".equals(attr)) {

  1886                         body = value;

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

  1888                         args[cnt++] = value;

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

  1890                         javacall = "1".equals(value);

  1891                     } else if ("wait4js".equals(attr)) {

  1892                         // ignore, we always invoke synchronously

  1893                     } else {

  1894                         throw new IllegalArgumentException(attr);

  1895                     }

  1896                 }

  1897             }

  1898         }

  1899         P p = new P();

  1900         p.parse(arr, jc);

  1901         if (p.body == null) {

  1902             return null;

  1903         }

  1904         StringBuilder cnt = new StringBuilder();

  1905         final String mn = findMethodName(m, cnt);

  1906         append("m = ").append(destObject).append(".").append(mn);

  1907         append(" = function(");

  1908         String space = "";

  1909         int index = 0;

  1910         StringBuilder toValue = new StringBuilder();

  1911         for (int i = 0; i < cnt.length(); i++) {

  1912             append(space);

  1913             space = outputArg(this, p.args, index);

  1914             if (p.html4j && space.length() > 0) {

  1915                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1916                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1917                     append(p.args[index]).append(");");

  1918             }

  1919             index++;

  1920         }

  1921         append(") {").append("\n");

  1922         append(toValue.toString());

  1923         if (p.javacall) {

  1924             int lastSlash = jc.getClassName().lastIndexOf('/');

  1925             final String pkg = jc.getClassName().substring(0, lastSlash);

  1926             append(mangleCallbacks(pkg, p.body));

  1927             requireReference(pkg + "/$JsCallbacks$");

  1928         } else {

  1929             append(p.body);

  1930         }

  1931         append("\n}\n");

  1932         return mn;

  1933     }

  1935     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1936         StringBuilder sb = new StringBuilder();

  1937         int pos = 0;

  1938         for (;;) {

  1939             int next = body.indexOf(".@", pos);

  1940             if (next == -1) {

  1941                 sb.append(body.substring(pos));

  1942                 body = sb.toString();

  1943                 break;

  1944             }

  1945             int ident = next;

  1946             while (ident > 0) {

  1947                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  1948                     ident++;

  1949                     break;

  1950                 }

  1951             }

  1952             String refId = body.substring(ident, next);

  1954             sb.append(body.substring(pos, ident));

  1956             int sigBeg = body.indexOf('(', next);

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

  1958             int colon4 = body.indexOf("::", next);

  1959             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1960                 throw new IllegalStateException("Malformed body " + body);

  1961             }

  1962             String fqn = body.substring(next + 2, colon4);

  1963             String method = body.substring(colon4 + 2, sigBeg);

  1964             String params = body.substring(sigBeg, sigEnd + 1);

  1966             int paramBeg = body.indexOf('(', sigEnd + 1);

  1968             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  1969             sb.append(mangleJsCallbacks(fqn, method, params, false));

  1970             sb.append("(").append(refId);

  1971             if (body.charAt(paramBeg + 1) != ')') {

  1972                 sb.append(",");

  1973             }

  1974             pos = paramBeg + 1;

  1975         }

  1976         sb = null;

  1977         pos = 0;

  1978         for (;;) {

  1979             int next = body.indexOf("@", pos);

  1980             if (next == -1) {

  1981                 if (sb == null) {

  1982                     return body;

  1983                 }

  1984                 sb.append(body.substring(pos));

  1985                 return sb;

  1986             }

  1987             if (sb == null) {

  1988                 sb = new StringBuilder();

  1989             }

  1991             sb.append(body.substring(pos, next));

  1993             int sigBeg = body.indexOf('(', next);

  1994             int sigEnd = body.indexOf(')', sigBeg);

  1995             int colon4 = body.indexOf("::", next);

  1996             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1997                 throw new IllegalStateException("Malformed body " + body);

  1998             }

  1999             String fqn = body.substring(next + 1, colon4);

  2000             String method = body.substring(colon4 + 2, sigBeg);

  2001             String params = body.substring(sigBeg, sigEnd + 1);

  2003             int paramBeg = body.indexOf('(', sigEnd + 1);

  2005             sb.append("vm.").append(pkgName.replace('/', '_')).append("_$JsCallbacks$(false)._VM().");

  2006             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2007             sb.append("(");

  2008             pos = paramBeg + 1;

  2009         }

  2010     }

  2012     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2013         if (params.startsWith("(")) {

  2014             params = params.substring(1);

  2015         }

  2016         if (params.endsWith(")")) {

  2017             params = params.substring(0, params.length() - 1);

  2018         }

  2019         StringBuilder sb = new StringBuilder();

  2020         final String fqnu = fqn.replace('.', '_');

  2021         final String rfqn = mangleClassName(fqnu);

  2022         final String rm = mangleMethodName(method);

  2023         final String srp;

  2024         {

  2025             StringBuilder pb = new StringBuilder();

  2026             int len = params.length();

  2027             int indx = 0;

  2028             while (indx < len) {

  2029                 char ch = params.charAt(indx);

  2030                 if (ch == '[' || ch == 'L') {

  2031                     int column = params.indexOf(';', indx) + 1;

  2032                     if (column > indx) {

  2033                         String real = params.substring(indx, column);

  2034                         if ("Ljava/lang/String;".equals(real)) {

  2035                             pb.append("Ljava/lang/String;");

  2036                             indx = column;

  2037                             continue;

  2038                         }

  2039                     }

  2040                     pb.append("Ljava/lang/Object;");

  2041                     indx = column;

  2042                 } else {

  2043                     pb.append(ch);

  2044                     indx++;

  2045                 }

  2046             }

  2047             srp = mangleSig(pb.toString());

  2048         }

  2049         final String rp = mangleSig(params);

  2050         final String mrp = mangleMethodName(rp);

  2051         sb.append(rfqn).append("$").append(rm).

  2052             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2053         if (!isStatic) {

  2054             sb.append('L').append(fqnu).append("_2");

  2055         }

  2056         sb.append(srp);

  2057         return sb.toString();

  2058     }

  2060     private static String className(ClassData jc) {

  2061         //return jc.getName().getInternalName().replace('/', '_');

  2062         return mangleClassName(jc.getClassName());

  2063     }

  2065     private static String[] findAnnotation(

  2066         byte[] arr, ClassData cd, final String className,

  2067         final String... attrNames

  2068     ) throws IOException {

  2069         if (arr == null) {

  2070             return null;

  2071         }

  2072         final String[] values = new String[attrNames.length];

  2073         final boolean[] found = { false };

  2074         final String jvmType = "L" + className.replace('.', '/') + ";";

  2075         AnnotationParser ap = new AnnotationParser(false, true) {

  2076             @Override

  2077             protected void visitAttr(String type, String attr, String at, String value) {

  2078                 if (type.equals(jvmType)) {

  2079                     found[0] = true;

  2080                     for (int i = 0; i < attrNames.length; i++) {

  2081                         if (attrNames[i].equals(attr)) {

  2082                             values[i] = value;

  2083                         }

  2084                     }

  2085                 }

  2086             }

  2088         };

  2089         ap.parse(arr, cd);

  2090         return found[0] ? values : null;

  2091     }

  2093     private CharSequence initField(FieldData v) {

  2094         final String is = v.getInternalSig();

  2095         if (is.length() == 1) {

  2096             switch (is.charAt(0)) {

  2097                 case 'S':

  2098                 case 'J':

  2099                 case 'B':

  2100                 case 'Z':

  2101                 case 'C':

  2102                 case 'I': return " = 0;";

  2103                 case 'F':

  2104                 case 'D': return " = 0.0;";

  2105                 default:

  2106                     throw new IllegalStateException(is);

  2107             }

  2108         }

  2109         return " = null;";

  2110     }

  2112     private void generateAnno(ClassData cd, byte[] data) throws IOException {

  2113         AnnotationParser ap = new AnnotationParser(true, false) {

  2114             int[] cnt = new int[32];

  2115             int depth;

  2117             @Override

  2118             protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2119                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2120                 requireReference(slashType);

  2122                 if (cnt[depth]++ > 0) {

  2123                     append(",");

  2124                 }

  2125                 if (top) {

  2126                     append('"').append(attrType).append("\" : ");

  2127                 }

  2128                 append("{\n");

  2129                 cnt[++depth] = 0;

  2130             }

  2132             @Override

  2133             protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2134                 append("\n}\n");

  2135                 depth--;

  2136             }

  2138             @Override

  2139             protected void visitValueStart(String attrName, char type) throws IOException {

  2140                 if (cnt[depth]++ > 0) {

  2141                     append(",\n");

  2142                 }

  2143                 cnt[++depth] = 0;

  2144                 if (attrName != null) {

  2145                     append('"').append(attrName).append("\" : ");

  2146                 }

  2147                 if (type == '[') {

  2148                     append("[");

  2149                 }

  2150             }

  2152             @Override

  2153             protected void visitValueEnd(String attrName, char type) throws IOException {

  2154                 if (type == '[') {

  2155                     append("]");

  2156                 }

  2157                 depth--;

  2158             }

  2160             @Override

  2161             protected void visitAttr(String type, String attr, String attrType, String value)

  2162             throws IOException {

  2163                 if (attr == null && value == null) {

  2164                     return;

  2165                 }

  2166                 append(value);

  2167             }

  2169             @Override

  2170             protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2171             throws IOException {

  2172                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2173                 requireReference(slashType);

  2175                 final String cn = mangleClassName(slashType);

  2176                 append(accessClassFalse(cn))

  2177                    .append("['valueOf__L").

  2178                     append(cn).

  2179                     append("_2Ljava_lang_String_2']('").

  2180                     append(value).

  2181                     append("')");

  2182             }

  2183         };

  2184         ap.parse(data, cd);

  2185     }

  2187     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2188         final String name = args[indx];

  2189         if (name == null) {

  2190             return "";

  2191         }

  2192         if (name.contains(",")) {

  2193             throw new IOException("Wrong parameter with ',': " + name);

  2194         }

  2195         out.append(name);

  2196         return ",";

  2197     }

  2199     final void emitNoFlush(

  2200         StackMapper sm,

  2201         final String format, final CharSequence... params

  2202     ) throws IOException {

  2203         emitImpl(this, format, params);

  2204     }

  2205     static final void emit(

  2206         StackMapper sm,

  2207         final Appendable out,

  2208         final String format, final CharSequence... params

  2209     ) throws IOException {

  2210         sm.flush(out);

  2211         emitImpl(out, format, params);

  2212     }

  2213     static void emitImpl(final Appendable out,

  2214                              final String format,

  2215                              final CharSequence... params) throws IOException {

  2216         final int length = format.length();

  2218         int processed = 0;

  2219         int paramOffset = format.indexOf('@');

  2220         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2221             final char paramChar = format.charAt(paramOffset + 1);

  2222             if ((paramChar >= '1') && (paramChar <= '9')) {

  2223                 final int paramIndex = paramChar - '0' - 1;

  2225                 out.append(format, processed, paramOffset);

  2226                 out.append(params[paramIndex]);

  2228                 ++paramOffset;

  2229                 processed = paramOffset + 1;

  2230             }

  2232             paramOffset = format.indexOf('@', paramOffset + 1);

  2233         }

  2235         out.append(format, processed, length);

  2236     }

  2238     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2239         append("} catch (e) {\n");

  2240         int finallyPC = -1;

  2241         for (TrapData e : traps) {

  2242             if (e == null) {

  2243                 break;

  2244             }

  2245             if (e.catch_cpx != 0) { //not finally

  2246                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2247                 addReference(classInternalName);

  2248                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2249                 append("if (e['$instOf_" + classInternalName.replace('/', '_') + "']) {");

  2250                 append("var stA0 = e;");

  2251                 goTo(this, current, e.handler_pc, topMostLabel);

  2252                 append("}\n");

  2253             } else {

  2254                 finallyPC = e.handler_pc;

  2255             }

  2256         }

  2257         if (finallyPC == -1) {

  2258             append("throw e;");

  2259         } else {

  2260             append("var stA0 = e;");

  2261             goTo(this, current, finallyPC, topMostLabel);

  2262         }

  2263         append("\n}");

  2264     }

  2266     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2267         if (to < current) {

  2268             if (canBack < to) {

  2269                 out.append("{ gt = 0; continue X_" + to + "; }");

  2270             } else {

  2271                 out.append("{ gt = " + to + "; continue X_0; }");

  2272             }

  2273         } else {

  2274             out.append("{ gt = " + to + "; break IF; }");

  2275         }

  2276     }

  2278     private static void emitIf(

  2279         StackMapper sm,

  2280         Appendable out, String pattern,

  2281         CharSequence param,

  2282         int current, int to, int canBack

  2283     ) throws IOException {

  2284         sm.flush(out);

  2285         emitImpl(out, pattern, param);

  2286         goTo(out, current, to, canBack);

  2287     }

  2289     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2290         String jvmType;

  2291         switch (atype) {

  2292             case 4: jvmType = "[Z"; break;

  2293             case 5: jvmType = "[C"; break;

  2294             case 6: jvmType = "[F"; break;

  2295             case 7: jvmType = "[D"; break;

  2296             case 8: jvmType = "[B"; break;

  2297             case 9: jvmType = "[S"; break;

  2298             case 10: jvmType = "[I"; break;

  2299             case 11: jvmType = "[J"; break;

  2300             default: throw new IllegalStateException("Array type: " + atype);

  2301         }

  2302         emit(smapper, this,

  2303             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2304              smapper.popI(), smapper.pushA(), jvmType);

  2305     }

  2307     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2308         String typeName = jc.getClassName(type);

  2309         String ref = "null";

  2310         if (typeName.startsWith("[")) {

  2311             typeName = "'[" + typeName + "'";

  2312         } else {

  2313             ref = "vm." + mangleClassName(typeName);

  2314             typeName = "'[L" + typeName + ";'";

  2315         }

  2316         emit(smapper, this,

  2317             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2318              smapper.popI(), smapper.pushA(), typeName, ref);

  2319     }

  2321     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2322         String typeName = jc.getClassName(type);

  2323         int dim = readUByte(byteCodes, ++i);

  2324         StringBuilder dims = new StringBuilder();

  2325         dims.append('[');

  2326         for (int d = 0; d < dim; d++) {

  2327             if (d != 0) {

  2328                 dims.insert(1, ",");

  2329             }

  2330             dims.insert(1, smapper.popI());

  2331         }

  2332         dims.append(']');

  2333         String fn = "null";

  2334         if (typeName.charAt(dim) == 'L') {

  2335             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2336         }

  2337         emit(smapper, this,

  2338             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2339              dims.toString(), smapper.pushA(), typeName, fn

  2340         );

  2341         return i;

  2342     }

  2344     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2345         int table = i / 4 * 4 + 4;

  2346         int dflt = i + readInt4(byteCodes, table);

  2347         table += 4;

  2348         int low = readInt4(byteCodes, table);

  2349         table += 4;

  2350         int high = readInt4(byteCodes, table);

  2351         table += 4;

  2352         final CharSequence swVar = smapper.popValue();

  2353         smapper.flush(this);

  2354         append("switch (").append(swVar).append(") {\n");

  2355         while (low <= high) {

  2356             int offset = i + readInt4(byteCodes, table);

  2357             table += 4;

  2358             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2359             low++;

  2360         }

  2361         append("  default: ");

  2362         goTo(this, i, dflt, topMostLabel);

  2363         append("\n}");

  2364         i = table - 1;

  2365         return i;

  2366     }

  2368     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2369         int table = i / 4 * 4 + 4;

  2370         int dflt = i + readInt4(byteCodes, table);

  2371         table += 4;

  2372         int n = readInt4(byteCodes, table);

  2373         table += 4;

  2374         final CharSequence swVar = smapper.popValue();

  2375         smapper.flush(this);

  2376         append("switch (").append(swVar).append(") {\n");

  2377         while (n-- > 0) {

  2378             int cnstnt = readInt4(byteCodes, table);

  2379             table += 4;

  2380             int offset = i + readInt4(byteCodes, table);

  2381             table += 4;

  2382             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2383         }

  2384         append("  default: ");

  2385         goTo(this, i, dflt, topMostLabel);

  2386         append("\n}");

  2387         i = table - 1;

  2388         return i;

  2389     }

  2391     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2392         String type = jc.getClassName(indx);

  2393         if (!type.startsWith("[")) {

  2394             emit(smapper, this,

  2395                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2396                  smapper.popA(), smapper.pushI(),

  2397                  type.replace('/', '_'));

  2398         } else {

  2399             int cnt = 0;

  2400             while (type.charAt(cnt) == '[') {

  2401                 cnt++;

  2402             }

  2403             if (type.charAt(cnt) == 'L') {

  2404                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2405                 emit(smapper, this,

  2406                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2407                     smapper.popA(), smapper.pushI(),

  2408                     type, "" + cnt

  2409                 );

  2410             } else {

  2411                 emit(smapper, this,

  2412                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2413                     smapper.popA(), smapper.pushI(), type

  2414                 );

  2415             }

  2416         }

  2417     }

  2419     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2420         String type = jc.getClassName(indx);

  2421         if (!type.startsWith("[")) {

  2422             emitNoFlush(smapper,

  2423                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2424                  smapper.getT(0, VarType.REFERENCE, false), type.replace('/', '_'));

  2425         } else {

  2426             int cnt = 0;

  2427             while (type.charAt(cnt) == '[') {

  2428                 cnt++;

  2429             }

  2430             if (type.charAt(cnt) == 'L') {

  2431                 type = "vm." + mangleClassName(type.substring(cnt + 1, type.length() - 1));

  2432                 emitNoFlush(smapper,

  2433                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2434                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2435                 );

  2436             } else {

  2437                 emitNoFlush(smapper,

  2438                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2439                      smapper.getT(0, VarType.REFERENCE, false), type

  2440                 );

  2441             }

  2442         }

  2443     }

  2445     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2446         for (int j = prev; j <= i; j++) {

  2447             append(" ");

  2448             final int cc = readUByte(byteCodes, j);

  2449             append(Integer.toString(cc));

  2450         }

  2451     }

  2453     @JavaScriptBody(args = "msg", body = "")

  2454     private static void println(String msg) {

  2455         System.err.println(msg);

  2456     }

  2457 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Tue, 24 Feb 2015 11:12:53 +0100
changeset 1787	ea12a3bb4b33
parent 1780	b6e926f68703
child 1795	3c23f0cebd32
permissions	-rw-r--r--