hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@c3dee54ecc15

     1 /**

     2  * Back 2 Browser Bytecode Translator

     3  * Copyright (C) 2012-2015 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

     4  *

     5  * This program is free software: you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation, version 2 of the License.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program. Look for COPYING file in the top folder.

    16  * If not, see http://opensource.org/licenses/GPL-2.0.

    17  */

    18 package org.apidesign.vm4brwsr;

    20 import java.io.IOException;

    21 import java.io.InputStream;

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

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

    24 import org.apidesign.vm4brwsr.ByteCodeParser.AnnotationParser;

    25 import org.apidesign.vm4brwsr.ByteCodeParser.BootMethodData;

    26 import org.apidesign.vm4brwsr.ByteCodeParser.CPX2;

    27 import org.apidesign.vm4brwsr.ByteCodeParser.ClassData;

    28 import org.apidesign.vm4brwsr.ByteCodeParser.FieldData;

    29 import org.apidesign.vm4brwsr.ByteCodeParser.MethodData;

    30 import org.apidesign.vm4brwsr.ByteCodeParser.StackMapIterator;

    31 import org.apidesign.vm4brwsr.ByteCodeParser.TrapData;

    32 import org.apidesign.vm4brwsr.ByteCodeParser.TrapDataIterator;

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

    35  *

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

    37  */

    38 abstract class ByteCodeToJavaScript implements Appendable {

    39     private ClassData jc;

    40     private final Appendable out;

    41     private final StringArray classRefs = new StringArray();

    42     private boolean outChanged;

    43     private boolean callbacks;

    44     private final NumberOperations numbers = new NumberOperations();

    46     protected ByteCodeToJavaScript(Appendable out) {

    47         this.out = out;

    48     }

    50     @Override

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

    52         out.append(csq);

    53         outChanged = true;

    54         return this;

    55     }

    57     @Override

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

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

    60         outChanged = true;

    61         return this;

    62     }

    64     @Override

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

    66         out.append(c);

    67         outChanged = true;

    68         return this;

    69     }

    71     /* Collects additional required resources.

    72      *

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

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

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

    76      */

    77     protected abstract boolean requireReference(String internalClassName);

    79     /*

    80      * @param resourcePath name of resources to read

    81      */

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

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

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

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

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

    89      *

    90      * @param className suggested name of the class

    91      */

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

    93         return className + " = ";

    94     }

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

    96         return classOperation;

    97     }

    99     final String accessClassFalse(String classOperation) {

   100         if (mangleClassName(jc.getClassName()).equals(classOperation)) {

   101             return "c";

   102         }

   103         classRefs.addIfMissing(classOperation);

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

   105     }

   107     protected FieldData findField(String[] fieldInfoName) throws IOException {

   108         return null;

   109     }

   111     protected String accessField(String object, FieldData data, String[] fieldInfoName)

   112     throws IOException {

   113         String mangledName = "_" + fieldInfoName[1];

   114         return object + "." + mangledName;

   115     }

   117     protected String accessStaticMethod(

   118                              String object,

   119                              String mangledName,

   120                              String[] fieldInfoName) throws IOException {

   121         return object + "." + mangledName;

   122     }

   124     protected String accessVirtualMethod(

   125             String object,

   126             String mangledName,

   127             String[] fieldInfoName,

   128             int params

   129     ) throws IOException {

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

   131     }

   133     protected void declareClass(ClassData classData, String mangledName)

   134     throws IOException {

   135         append(mangledName);

   136     }

   138     protected void declaredField(FieldData fieldData,

   139                                  String destObject,

   140                                  String mangledName) throws IOException {

   141     }

   143     protected void declaredMethod(MethodData methodData,

   144                                   String destObject,

   145                                   String mangledName) throws IOException {

   146     }

   148     /** Prints out a debug message.

   149      *

   150      * @param msg the message

   151      * @return true if the message has been printed

   152      * @throws IOException

   153      */

   154     boolean debug(String msg) throws IOException {

   155         append(msg);

   156         return true;

   157     }

   159     /**

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

   161      *

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

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

   164      *

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

   166      */

   168     public String compile(InputStream classFile) throws IOException {

   169         return compile(new ClassData(classFile));

   170     }

   172     protected String compile(ClassData classData) throws IOException {

   173         this.jc = classData;

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

   175         try {

   176             return compileImpl(cn);

   177         } catch (IOException ex) {

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

   179         }

   180     }

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

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

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

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

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

   187             );

   188         }

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

   190         {

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

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

   193                 "resource", "processByteCode"

   194             );

   195             if (arr != null) {

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

   197                     requireScript(arr[0]);

   198                 }

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

   200                     return null;

   201                 }

   202             }

   203         }

   204         final String jsResource;

   205         {

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

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

   208                 "value"

   209             );

   210             if (arr != null) {

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

   212                     jsResource = arr[0];

   213                 } else {

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

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

   216                 }

   217             } else {

   218                 jsResource = null;

   219             }

   220         }

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

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

   223             "container", "prototype"

   224         );

   225         StringArray toInitilize = new StringArray();

   226         final String className = className(jc);

   227         append("\n\n");

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

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

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

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

   232         if (proto == null) {

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

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

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

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

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

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

   239         } else {

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

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

   242                 proto[0] = "p";

   243             }

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

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

   246         }

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

   248             if (v.isStatic()) {

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

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

   251                         continue;

   252                     }

   253                 }

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

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

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

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

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

   259             } else {

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

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

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

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

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

   265                     .append("; };");

   266             }

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

   269         }

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

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

   272             if (javaScriptOnly(onlyArr)) continue;

   273             String destObject;

   274             String mn;

   275             append("\n    ");

   276             if (m.isStatic()) {

   277                 destObject = "c";

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

   279             } else {

   280                 if (m.isConstructor()) {

   281                     destObject = "CLS";

   282                     mn = generateInstanceMethod(destObject, m);

   283                 } else {

   284                     destObject = "c";

   285                     mn = generateInstanceMethod(destObject, m);

   286                 }

   287             }

   288             declaredMethod(m, destObject, mn);

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

   290             if (runAnno != null) {

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

   292                 AnnotationParser ap = new GenerateAnno(true, false);

   293                 ap.parse(runAnno, jc);

   294                 append("\n    };");

   295             }

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

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

   298         }

   299         append(numbers.generate());

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

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

   302         String instOfName = "$instOf_" + className;

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

   304         if (jc.isInterface()) {

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

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

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

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

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

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

   311                 }

   312             }

   313         }

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

   315             String intrfc = mangleClassName(superInterface);

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

   317             requireReference(superInterface);

   318         }

   319         append("\n    }");

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

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

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

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

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

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

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

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

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

   329         {

   330             boolean first = true;

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

   332                 if (!first) {

   333                     append(",");

   334                 }

   335                 requireReference(intrfc);

   336                 String mangledIface = mangleClassName(intrfc);

   337                 append("\n        ");

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

   339                 first = false;

   340             }

   341         }

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

   343         int flags = jc.getAccessFlags();

   344         if (jc.hasEnclosingMethod()) {

   345             flags |= 0x10000;

   346         }

   347         append("\n    CLS.$class.access = ").append(flags+";");

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

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

   350         if (classAnno != null) {

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

   352             AnnotationParser ap = new GenerateAnno(true, false);

   353             ap.parse(classAnno, jc);

   354             append("\n    };");

   355         }

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

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

   358         }

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

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

   361         }

   362         classRefs.clear();

   364         if (jsResource != null) {

   365             requireResource(jsResource);

   366         }

   368         append("\n  }");

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

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

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

   372         append("\n    }");

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

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

   375             if (javaScriptOnly(onlyArr)) continue;

   376             if (!v.isStatic()) {

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

   378                     append(className).append('_').

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

   380             }

   381         }

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

   383         append("\n  }");

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

   385         append("\n};");

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

   388         declareClass(jc, className);

   389         append(";\n");

   391 //        StringBuilder sb = new StringBuilder();

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

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

   394 //        }

   395         return "";

   396     }

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

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

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

   401             "name", "value"

   402         );

   403         if (only != null) {

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

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

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

   407             }

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

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

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

   411             }

   412             return true;

   413         }

   414         return false;

   415     }

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

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

   418         if (jsb != null) {

   419             return jsb;

   420         }

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

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

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

   424             if (defineProp) {

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

   426             } else {

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

   428             }

   429         }

   430         return mn;

   431     }

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

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

   435         if (jsb != null) {

   436             return jsb;

   437         }

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

   439         generateMethod(destObject, mn, m);

   440         return mn;

   441     }

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

   444             throws IOException {

   445         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   446         TrapDataIterator trap = m.getTrapDataIterator();

   447         final LocalsMapper lmapper =

   448                 new LocalsMapper(stackMapIterator.getArguments());

   450         boolean defineProp =

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

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

   454         if (defineProp) {

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

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

   457         } else {

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

   459         }

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

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

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

   464         if (byteCodes == null) {

   465             byte[] defaultAttr = m.getDefaultAttribute();

   466             if (defaultAttr != null) {

   467                 append("  return ");

   468                 AnnotationParser ap = new GenerateAnno(true, false);

   469                 ap.parseDefault(defaultAttr, jc);

   470                 append(";\n");

   471             } else {

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

   473                    this

   474                    .append(jc.getClassName()).append('.')

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

   476                 }

   477             }

   478             if (defineProp) {

   479                 append("}});");

   480             } else {

   481                 append("};");

   482             }

   483             return defineProp;

   484         }

   486         final StackMapper smapper = new StackMapper();

   488         if (!m.isStatic()) {

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

   490         }

   492         int lastStackFrame;

   493         TrapData[] previousTrap = null;

   494         boolean wide = false;

   495         boolean didBranches;

   496         if (stackMapIterator.isEmpty()) {

   497             didBranches = false;

   498             lastStackFrame = 0;

   499         } else {

   500             didBranches = true;

   501             lastStackFrame = -1;

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

   503         }

   505         int openBraces = 0;

   506         int topMostLabel = 0;

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

   508             int prev = i;

   509             outChanged = false;

   510             stackMapIterator.advanceTo(i);

   511             boolean changeInCatch = trap.advanceTo(i);

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

   513                 if (previousTrap != null) {

   514                     generateCatch(previousTrap, i, topMostLabel);

   515                     previousTrap = null;

   516                 }

   517             }

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

   519                 smapper.flush(this);

   520                 if (i != 0) {

   521                     append("    }\n");

   522                 }

   523                 if (openBraces > 64) {

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

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

   526                     }

   527                     openBraces = 1;

   528                     topMostLabel = i;

   529                 }

   531                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   535                 openBraces++;

   536                 changeInCatch = true;

   537             } else {

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

   539             }

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

   541                 append("try {");

   542                 previousTrap = trap.current();

   543             }

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

   545             switch (c) {

   546                 case opc_aload_0:

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

   548                     break;

   549                 case opc_iload_0:

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

   551                     break;

   552                 case opc_lload_0:

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

   554                     break;

   555                 case opc_fload_0:

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

   557                     break;

   558                 case opc_dload_0:

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

   560                     break;

   561                 case opc_aload_1:

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

   563                     break;

   564                 case opc_iload_1:

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

   566                     break;

   567                 case opc_lload_1:

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

   569                     break;

   570                 case opc_fload_1:

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

   572                     break;

   573                 case opc_dload_1:

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

   575                     break;

   576                 case opc_aload_2:

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

   578                     break;

   579                 case opc_iload_2:

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

   581                     break;

   582                 case opc_lload_2:

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

   584                     break;

   585                 case opc_fload_2:

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

   587                     break;

   588                 case opc_dload_2:

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

   590                     break;

   591                 case opc_aload_3:

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

   593                     break;

   594                 case opc_iload_3:

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

   596                     break;

   597                 case opc_lload_3:

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

   599                     break;

   600                 case opc_fload_3:

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

   602                     break;

   603                 case opc_dload_3:

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

   605                     break;

   606                 case opc_iload: {

   607                     ++i;

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

   609                                           : readUByte(byteCodes, i);

   610                     wide = false;

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

   612                     break;

   613                 }

   614                 case opc_lload: {

   615                     ++i;

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

   617                                           : readUByte(byteCodes, i);

   618                     wide = false;

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

   620                     break;

   621                 }

   622                 case opc_fload: {

   623                     ++i;

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

   625                                           : readUByte(byteCodes, i);

   626                     wide = false;

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

   628                     break;

   629                 }

   630                 case opc_dload: {

   631                     ++i;

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

   633                                           : readUByte(byteCodes, i);

   634                     wide = false;

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

   636                     break;

   637                 }

   638                 case opc_aload: {

   639                     ++i;

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

   641                                           : readUByte(byteCodes, i);

   642                     wide = false;

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

   644                     break;

   645                 }

   646                 case opc_istore: {

   647                     ++i;

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

   649                                           : readUByte(byteCodes, i);

   650                     wide = false;

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

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

   653                     break;

   654                 }

   655                 case opc_lstore: {

   656                     ++i;

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

   658                                           : readUByte(byteCodes, i);

   659                     wide = false;

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

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

   662                     break;

   663                 }

   664                 case opc_fstore: {

   665                     ++i;

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

   667                                           : readUByte(byteCodes, i);

   668                     wide = false;

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

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

   671                     break;

   672                 }

   673                 case opc_dstore: {

   674                     ++i;

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

   676                                           : readUByte(byteCodes, i);

   677                     wide = false;

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

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

   680                     break;

   681                 }

   682                 case opc_astore: {

   683                     ++i;

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

   685                                           : readUByte(byteCodes, i);

   686                     wide = false;

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

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

   689                     break;

   690                 }

   691                 case opc_astore_0:

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

   693                     break;

   694                 case opc_istore_0:

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

   696                     break;

   697                 case opc_lstore_0:

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

   699                     break;

   700                 case opc_fstore_0:

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

   702                     break;

   703                 case opc_dstore_0:

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

   705                     break;

   706                 case opc_astore_1:

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

   708                     break;

   709                 case opc_istore_1:

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

   711                     break;

   712                 case opc_lstore_1:

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

   714                     break;

   715                 case opc_fstore_1:

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

   717                     break;

   718                 case opc_dstore_1:

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

   720                     break;

   721                 case opc_astore_2:

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

   723                     break;

   724                 case opc_istore_2:

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

   726                     break;

   727                 case opc_lstore_2:

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

   729                     break;

   730                 case opc_fstore_2:

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

   732                     break;

   733                 case opc_dstore_2:

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

   735                     break;

   736                 case opc_astore_3:

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

   738                     break;

   739                 case opc_istore_3:

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

   741                     break;

   742                 case opc_lstore_3:

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

   744                     break;

   745                 case opc_fstore_3:

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

   747                     break;

   748                 case opc_dstore_3:

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

   750                     break;

   751                 case opc_iadd:

   752                     smapper.replace(this, VarType.INTEGER, "(((@1) + (@2)) | 0)", smapper.getI(1), smapper.popI());

   753                     break;

   754                 case opc_ladd:

   755                     smapper.replace(this, VarType.LONG, numbers.add64(), smapper.getL(1), smapper.popL());

   756                     break;

   757                 case opc_fadd:

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

   759                     break;

   760                 case opc_dadd:

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

   762                     break;

   763                 case opc_isub:

   764                     smapper.replace(this, VarType.INTEGER, "(((@1) - (@2)) | 0)", smapper.getI(1), smapper.popI());

   765                     break;

   766                 case opc_lsub:

   767                     smapper.replace(this, VarType.LONG, numbers.sub64(), smapper.getL(1), smapper.popL());

   768                     break;

   769                 case opc_fsub:

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

   771                     break;

   772                 case opc_dsub:

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

   774                     break;

   775                 case opc_imul:

   776                     smapper.replace(this, VarType.INTEGER, numbers.mul32(), smapper.getI(1), smapper.popI());

   777                     break;

   778                 case opc_lmul:

   779                     smapper.replace(this, VarType.LONG, numbers.mul64(), smapper.getL(1), smapper.popL());

   780                     break;

   781                 case opc_fmul:

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

   783                     break;

   784                 case opc_dmul:

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

   786                     break;

   787                 case opc_idiv:

   788                     smapper.replace(this, VarType.INTEGER, numbers.div32(),

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

   790                     break;

   791                 case opc_ldiv:

   792                     smapper.replace(this, VarType.LONG, numbers.div64(),

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

   794                     break;

   795                 case opc_fdiv:

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

   797                     break;

   798                 case opc_ddiv:

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

   800                     break;

   801                 case opc_irem:

   802                     smapper.replace(this, VarType.INTEGER, numbers.mod32(),

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

   804                     break;

   805                 case opc_lrem:

   806                     smapper.replace(this, VarType.LONG, numbers.mod64(),

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

   808                     break;

   809                 case opc_frem:

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

   811                     break;

   812                 case opc_drem:

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

   814                     break;

   815                 case opc_iand:

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

   817                     break;

   818                 case opc_land:

   819                     smapper.replace(this, VarType.LONG, numbers.and64(), smapper.getL(1), smapper.popL());

   820                     break;

   821                 case opc_ior:

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

   823                     break;

   824                 case opc_lor:

   825                     smapper.replace(this, VarType.LONG, numbers.or64(), smapper.getL(1), smapper.popL());

   826                     break;

   827                 case opc_ixor:

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

   829                     break;

   830                 case opc_lxor:

   831                     smapper.replace(this, VarType.LONG, numbers.xor64(), smapper.getL(1), smapper.popL());

   832                     break;

   833                 case opc_ineg:

   834                     smapper.replace(this, VarType.INTEGER, "(-(@1) | 0)", smapper.getI(0));

   835                     break;

   836                 case opc_lneg:

   837                     smapper.replace(this, VarType.LONG, numbers.neg64(), smapper.getL(0));

   838                     break;

   839                 case opc_fneg:

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

   841                     break;

   842                 case opc_dneg:

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

   844                     break;

   845                 case opc_ishl:

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

   847                     break;

   848                 case opc_lshl:

   849                     smapper.replace(this, VarType.LONG, numbers.shl64(), smapper.getL(1), smapper.popI());

   850                     break;

   851                 case opc_ishr:

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

   853                     break;

   854                 case opc_lshr:

   855                     smapper.replace(this, VarType.LONG, numbers.shr64(), smapper.getL(1), smapper.popI());

   856                     break;

   857                 case opc_iushr:

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

   859                     break;

   860                 case opc_lushr:

   861                     smapper.replace(this, VarType.LONG, numbers.ushr64(), smapper.getL(1), smapper.popI());

   862                     break;

   863                 case opc_iinc: {

   864                     ++i;

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

   866                                              : readUByte(byteCodes, i);

   867                     ++i;

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

   869                                             : byteCodes[i];

   870                     wide = false;

   871                     if (incrBy == 1) {

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

   873                     } else {

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

   875                              lmapper.getI(varIndx),

   876                              Integer.toString(incrBy));

   877                     }

   878                     break;

   879                 }

   880                 case opc_return:

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

   882                     break;

   883                 case opc_ireturn:

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

   885                     break;

   886                 case opc_lreturn:

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

   888                     break;

   889                 case opc_freturn:

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

   891                     break;

   892                 case opc_dreturn:

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

   894                     break;

   895                 case opc_areturn:

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

   897                     break;

   898                 case opc_i2l:

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

   900                     break;

   901                 case opc_i2f:

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

   903                     break;

   904                 case opc_i2d:

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

   906                     break;

   907                 case opc_l2i:

   908                     smapper.replace(this, VarType.INTEGER, "((@1) | 0)", smapper.getL(0));

   909                     break;

   910                     // max int check?

   911                 case opc_l2f:

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

   913                     break;

   914                 case opc_l2d:

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

   916                     break;

   917                 case opc_f2d:

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

   919                          smapper.getF(0));

   920                     break;

   921                 case opc_d2f:

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

   923                          smapper.getD(0));

   924                     break;

   925                 case opc_f2i:

   926                     smapper.replace(this, VarType.INTEGER, "((@1) | 0)",

   927                          smapper.getF(0));

   928                     break;

   929                 case opc_f2l:

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

   931                          smapper.getF(0));

   932                     break;

   933                 case opc_d2i:

   934                     smapper.replace(this, VarType.INTEGER, "((@1)| 0)",

   935                          smapper.getD(0));

   936                     break;

   937                 case opc_d2l:

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

   939                     break;

   940                 case opc_i2b:

   941                     smapper.replace(this, VarType.INTEGER, "(((@1) << 24) >> 24)", smapper.getI(0));

   942                     break;

   943                 case opc_i2c:

   944                 case opc_i2s:

   945                     smapper.replace(this, VarType.INTEGER, "(((@1) << 16) >> 16)", smapper.getI(0));

   946                     break;

   947                 case opc_aconst_null:

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

   949                     break;

   950                 case opc_iconst_m1:

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

   952                     break;

   953                 case opc_iconst_0:

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

   955                     break;

   956                 case opc_dconst_0:

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

   958                     break;

   959                 case opc_lconst_0:

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

   961                     break;

   962                 case opc_fconst_0:

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

   964                     break;

   965                 case opc_iconst_1:

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

   967                     break;

   968                 case opc_lconst_1:

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

   970                     break;

   971                 case opc_fconst_1:

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

   973                     break;

   974                 case opc_dconst_1:

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

   976                     break;

   977                 case opc_iconst_2:

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

   979                     break;

   980                 case opc_fconst_2:

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

   982                     break;

   983                 case opc_iconst_3:

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

   985                     break;

   986                 case opc_iconst_4:

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

   988                     break;

   989                 case opc_iconst_5:

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

   991                     break;

   992                 case opc_ldc: {

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

   994                     String v = encodeConstant(indx);

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

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

   997                     break;

   998                 }

   999                 case opc_ldc_w:

  1000                 case opc_ldc2_w: {

  1001                     int indx = readUShortArg(byteCodes, i);

  1002                     i += 2;

  1003                     String v = encodeConstant(indx);

  1004                     int type = VarType.fromConstantType(jc.getTag(indx));

  1005                     if (type == VarType.LONG) {

  1006                         final Long lv = new Long(v);

  1007                         final int low = (int)(lv.longValue() & 0xFFFFFFFF);

  1008                         final int hi = (int)(lv.longValue() >> 32);

  1009                         if (hi == 0) {

  1010                             smapper.assign(this, VarType.LONG, "0x" + Integer.toHexString(low));

  1011                         } else {

  1012                             smapper.assign(this, VarType.LONG,

  1013                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

  1014                                     Integer.toHexString(low) + ")"

  1015                             );

  1016                         }

  1017                     } else {

  1018                         smapper.assign(this, type, v);

  1019                     }

  1020                     break;

  1021                 }

  1022                 case opc_lcmp:

  1023                     smapper.replace(this, VarType.INTEGER, numbers.compare64(), smapper.popL(), smapper.getL(0));

  1024                     break;

  1025                 case opc_fcmpl:

  1026                 case opc_fcmpg:

  1027                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1028                          smapper.popF(), smapper.popF(), smapper.pushI());

  1029                     break;

  1030                 case opc_dcmpl:

  1031                 case opc_dcmpg:

  1032                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1033                          smapper.popD(), smapper.popD(), smapper.pushI());

  1034                     break;

  1035                 case opc_if_acmpeq:

  1036                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

  1037                                    "===", topMostLabel);

  1038                     break;

  1039                 case opc_if_acmpne:

  1040                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

  1041                                    "!==", topMostLabel);

  1042                     break;

  1043                 case opc_if_icmpeq:

  1044                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1045                                    "==", topMostLabel);

  1046                     break;

  1047                 case opc_ifeq: {

  1048                     int indx = i + readShortArg(byteCodes, i);

  1049                     emitIf(smapper, this, "if ((@1) == 0) ",

  1050                          smapper.popI(), i, indx, topMostLabel);

  1051                     i += 2;

  1052                     break;

  1053                 }

  1054                 case opc_ifne: {

  1055                     int indx = i + readShortArg(byteCodes, i);

  1056                     emitIf(smapper, this, "if ((@1) != 0) ",

  1057                          smapper.popI(), i, indx, topMostLabel);

  1058                     i += 2;

  1059                     break;

  1060                 }

  1061                 case opc_iflt: {

  1062                     int indx = i + readShortArg(byteCodes, i);

  1063                     emitIf(smapper, this, "if ((@1) < 0) ",

  1064                          smapper.popI(), i, indx, topMostLabel);

  1065                     i += 2;

  1066                     break;

  1067                 }

  1068                 case opc_ifle: {

  1069                     int indx = i + readShortArg(byteCodes, i);

  1070                     emitIf(smapper, this, "if ((@1) <= 0) ",

  1071                          smapper.popI(), i, indx, topMostLabel);

  1072                     i += 2;

  1073                     break;

  1074                 }

  1075                 case opc_ifgt: {

  1076                     int indx = i + readShortArg(byteCodes, i);

  1077                     emitIf(smapper, this, "if ((@1) > 0) ",

  1078                          smapper.popI(), i, indx, topMostLabel);

  1079                     i += 2;

  1080                     break;

  1081                 }

  1082                 case opc_ifge: {

  1083                     int indx = i + readShortArg(byteCodes, i);

  1084                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1085                          smapper.popI(), i, indx, topMostLabel);

  1086                     i += 2;

  1087                     break;

  1088                 }

  1089                 case opc_ifnonnull: {

  1090                     int indx = i + readShortArg(byteCodes, i);

  1091                     emitIf(smapper, this, "if ((@1) !== null) ",

  1092                          smapper.popA(), i, indx, topMostLabel);

  1093                     i += 2;

  1094                     break;

  1095                 }

  1096                 case opc_ifnull: {

  1097                     int indx = i + readShortArg(byteCodes, i);

  1098                     emitIf(smapper, this, "if ((@1) === null) ",

  1099                          smapper.popA(), i, indx, topMostLabel);

  1100                     i += 2;

  1101                     break;

  1102                 }

  1103                 case opc_if_icmpne:

  1104                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1105                                    "!=", topMostLabel);

  1106                     break;

  1107                 case opc_if_icmplt:

  1108                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1109                                    "<", topMostLabel);

  1110                     break;

  1111                 case opc_if_icmple:

  1112                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1113                                    "<=", topMostLabel);

  1114                     break;

  1115                 case opc_if_icmpgt:

  1116                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1117                                    ">", topMostLabel);

  1118                     break;

  1119                 case opc_if_icmpge:

  1120                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1121                                    ">=", topMostLabel);

  1122                     break;

  1123                 case opc_goto: {

  1124                     smapper.flush(this);

  1125                     int indx = i + readShortArg(byteCodes, i);

  1126                     goTo(this, i, indx, topMostLabel);

  1127                     i += 2;

  1128                     break;

  1129                 }

  1130                 case opc_lookupswitch: {

  1131                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1132                     break;

  1133                 }

  1134                 case opc_tableswitch: {

  1135                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1136                     break;

  1137                 }

  1138                 case opc_invokeinterface: {

  1139                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1140                     break;

  1141                 }

  1142                 case opc_invokevirtual:

  1143                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1144                     break;

  1145                 case opc_invokespecial:

  1146                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1147                     break;

  1148                 case opc_invokestatic:

  1149                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1150                     break;

  1151                 case opc_invokedynamic: {

  1152                     int indx = readUShortArg(byteCodes, i);

  1153                     println("invoke dynamic: " + indx);

  1154                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1155                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1156                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1157                     println("  type: " + methodHandle.cpx1);

  1158                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1159                     String mcn = mangleClassName(mi[0]);

  1160                     char[] returnType = {'V'};

  1161                     StringBuilder cnt = new StringBuilder();

  1162                     String mn = findMethodName(mi, cnt, returnType);

  1163                     StringBuilder sb = new StringBuilder();

  1164                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1165                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1166                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1167                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1168                     sb.append("  mn   : ").append(mn).append("\n");

  1169                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1170                     throw new IOException(sb.toString());

  1171                     /*

  1172                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1173                     String type = jc.StringValue(nameAndType.cpx2);

  1174                     String object = accessClass(mcn) + "(false)";

  1175                     if (mn.startsWith("cons_")) {

  1176                         object += ".constructor";

  1177                     }

  1178                     append("var metHan = ");

  1179                     append(accessStaticMethod(object, mn, mi));

  1180                     append('(');

  1181                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1182                     append(lookup);

  1183                     append(", '").append(mi[1]).append("', ");

  1184                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1185                     append(methodType).append("'").append(type).append("', null)");

  1186 //                    if (numArguments > 0) {

  1187 //                        append(vars[0]);

  1188 //                        for (int j = 1; j < numArguments; ++j) {

  1189 //                            append(", ");

  1190 //                            append(vars[j]);

  1191 //                        }

  1192 //                    }

  1193                     append(");");

  1194                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1195                     i += 4;

  1196                     break;

  1197                     */

  1198                 }

  1199                 case opc_new: {

  1200                     int indx = readUShortArg(byteCodes, i);

  1201                     String ci = jc.getClassName(indx);

  1202                     emit(smapper, this, "var @1 = new @2;",

  1203                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1204                     addReference(ci);

  1205                     i += 2;

  1206                     break;

  1207                 }

  1208                 case opc_newarray:

  1209                     int atype = readUByte(byteCodes, ++i);

  1210                     generateNewArray(atype, smapper);

  1211                     break;

  1212                 case opc_anewarray: {

  1213                     int type = readUShortArg(byteCodes, i);

  1214                     i += 2;

  1215                     generateANewArray(type, smapper);

  1216                     break;

  1217                 }

  1218                 case opc_multianewarray: {

  1219                     int type = readUShortArg(byteCodes, i);

  1220                     i += 2;

  1221                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1222                     break;

  1223                 }

  1224                 case opc_arraylength:

  1225                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1226                     break;

  1227                 case opc_lastore:

  1228                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1229                          smapper.popL(), smapper.popI(), smapper.popA());

  1230                     break;

  1231                 case opc_fastore:

  1232                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1233                          smapper.popF(), smapper.popI(), smapper.popA());

  1234                     break;

  1235                 case opc_dastore:

  1236                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1237                          smapper.popD(), smapper.popI(), smapper.popA());

  1238                     break;

  1239                 case opc_aastore:

  1240                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1241                          smapper.popA(), smapper.popI(), smapper.popA());

  1242                     break;

  1243                 case opc_iastore:

  1244                 case opc_bastore:

  1245                 case opc_castore:

  1246                 case opc_sastore:

  1247                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1248                          smapper.popI(), smapper.popI(), smapper.popA());

  1249                     break;

  1250                 case opc_laload:

  1251                     smapper.replace(this, VarType.LONG, "(@2[@1] || Array.at(@2, @1))",

  1252                          smapper.popI(), smapper.getA(0));

  1253                     break;

  1254                 case opc_faload:

  1255                     smapper.replace(this, VarType.FLOAT, "(@2[@1] || Array.at(@2, @1))",

  1256                          smapper.popI(), smapper.getA(0));

  1257                     break;

  1258                 case opc_daload:

  1259                     smapper.replace(this, VarType.DOUBLE, "(@2[@1] || Array.at(@2, @1))",

  1260                          smapper.popI(), smapper.getA(0));

  1261                     break;

  1262                 case opc_aaload:

  1263                     smapper.replace(this, VarType.REFERENCE, "(@2[@1] || Array.at(@2, @1))",

  1264                          smapper.popI(), smapper.getA(0));

  1265                     break;

  1266                 case opc_iaload:

  1267                 case opc_baload:

  1268                 case opc_caload:

  1269                 case opc_saload:

  1270                     smapper.replace(this, VarType.INTEGER, "(@2[@1] || Array.at(@2, @1))",

  1271                          smapper.popI(), smapper.getA(0));

  1272                     break;

  1273                 case opc_pop:

  1274                 case opc_pop2:

  1275                     smapper.pop(1);

  1276                     debug("/* pop */");

  1277                     break;

  1278                 case opc_dup: {

  1279                     final Variable v = smapper.get(0);

  1280                     if (smapper.isDirty()) {

  1281                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1282                     } else {

  1283                         smapper.assign(this, v.getType(), v);

  1284                     }

  1285                     break;

  1286                 }

  1287                 case opc_dup2: {

  1288                     final Variable vi1 = smapper.get(0);

  1290                     if (vi1.isCategory2()) {

  1291                         emit(smapper, this, "var @1 = @2;",

  1292                              smapper.pushT(vi1.getType()), vi1);

  1293                     } else {

  1294                         final Variable vi2 = smapper.get(1);

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

  1296                              smapper.pushT(vi2.getType()), vi2,

  1297                              smapper.pushT(vi1.getType()), vi1);

  1298                     }

  1299                     break;

  1300                 }

  1301                 case opc_dup_x1: {

  1302                     final Variable vi1 = smapper.pop(this);

  1303                     final Variable vi2 = smapper.pop(this);

  1304                     final Variable vo3 = smapper.pushT(vi1.getType());

  1305                     final Variable vo2 = smapper.pushT(vi2.getType());

  1306                     final Variable vo1 = smapper.pushT(vi1.getType());

  1308                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1309                          vo1, vi1, vo2, vi2, vo3, vo1);

  1310                     break;

  1311                 }

  1312                 case opc_dup2_x1: {

  1313                     final Variable vi1 = smapper.pop(this);

  1314                     final Variable vi2 = smapper.pop(this);

  1316                     if (vi1.isCategory2()) {

  1317                         final Variable vo3 = smapper.pushT(vi1.getType());

  1318                         final Variable vo2 = smapper.pushT(vi2.getType());

  1319                         final Variable vo1 = smapper.pushT(vi1.getType());

  1321                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1322                              vo1, vi1, vo2, vi2, vo3, vo1);

  1323                     } else {

  1324                         final Variable vi3 = smapper.pop(this);

  1325                         final Variable vo5 = smapper.pushT(vi2.getType());

  1326                         final Variable vo4 = smapper.pushT(vi1.getType());

  1327                         final Variable vo3 = smapper.pushT(vi3.getType());

  1328                         final Variable vo2 = smapper.pushT(vi2.getType());

  1329                         final Variable vo1 = smapper.pushT(vi1.getType());

  1331                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1332                              vo1, vi1, vo2, vi2, vo3, vi3);

  1333                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1334                              vo4, vo1, vo5, vo2);

  1335                     }

  1336                     break;

  1337                 }

  1338                 case opc_dup_x2: {

  1339                     final Variable vi1 = smapper.pop(this);

  1340                     final Variable vi2 = smapper.pop(this);

  1342                     if (vi2.isCategory2()) {

  1343                         final Variable vo3 = smapper.pushT(vi1.getType());

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

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

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

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

  1349                     } else {

  1350                         final Variable vi3 = smapper.pop(this);

  1351                         final Variable vo4 = smapper.pushT(vi1.getType());

  1352                         final Variable vo3 = smapper.pushT(vi3.getType());

  1353                         final Variable vo2 = smapper.pushT(vi2.getType());

  1354                         final Variable vo1 = smapper.pushT(vi1.getType());

  1356                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1357                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1358                     }

  1359                     break;

  1360                 }

  1361                 case opc_dup2_x2: {

  1362                     final Variable vi1 = smapper.pop(this);

  1363                     final Variable vi2 = smapper.pop(this);

  1365                     if (vi1.isCategory2()) {

  1366                         if (vi2.isCategory2()) {

  1367                             final Variable vo3 = smapper.pushT(vi1.getType());

  1368                             final Variable vo2 = smapper.pushT(vi2.getType());

  1369                             final Variable vo1 = smapper.pushT(vi1.getType());

  1371                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1372                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1373                         } else {

  1374                             final Variable vi3 = smapper.pop(this);

  1375                             final Variable vo4 = smapper.pushT(vi1.getType());

  1376                             final Variable vo3 = smapper.pushT(vi3.getType());

  1377                             final Variable vo2 = smapper.pushT(vi2.getType());

  1378                             final Variable vo1 = smapper.pushT(vi1.getType());

  1380                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1381                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1382                         }

  1383                     } else {

  1384                         final Variable vi3 = smapper.pop(this);

  1386                         if (vi3.isCategory2()) {

  1387                             final Variable vo5 = smapper.pushT(vi2.getType());

  1388                             final Variable vo4 = smapper.pushT(vi1.getType());

  1389                             final Variable vo3 = smapper.pushT(vi3.getType());

  1390                             final Variable vo2 = smapper.pushT(vi2.getType());

  1391                             final Variable vo1 = smapper.pushT(vi1.getType());

  1393                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1394                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1395                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1396                                  vo4, vo1, vo5, vo2);

  1397                         } else {

  1398                             final Variable vi4 = smapper.pop(this);

  1399                             final Variable vo6 = smapper.pushT(vi2.getType());

  1400                             final Variable vo5 = smapper.pushT(vi1.getType());

  1401                             final Variable vo4 = smapper.pushT(vi4.getType());

  1402                             final Variable vo3 = smapper.pushT(vi3.getType());

  1403                             final Variable vo2 = smapper.pushT(vi2.getType());

  1404                             final Variable vo1 = smapper.pushT(vi1.getType());

  1406                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1407                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1408                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1409                                  vo5, vo1, vo6, vo2);

  1410                         }

  1411                     }

  1412                     break;

  1413                 }

  1414                 case opc_swap: {

  1415                     final Variable vi1 = smapper.get(0);

  1416                     final Variable vi2 = smapper.get(1);

  1418                     if (vi1.getType() == vi2.getType()) {

  1419                         final Variable tmp = smapper.pushT(vi1.getType());

  1421                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1422                              tmp, vi1, vi2);

  1423                         smapper.pop(1);

  1424                     } else {

  1425                         smapper.pop(2);

  1426                         smapper.pushT(vi1.getType());

  1427                         smapper.pushT(vi2.getType());

  1428                     }

  1429                     break;

  1430                 }

  1431                 case opc_bipush:

  1432                     smapper.assign(this, VarType.INTEGER,

  1433                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1434                     break;

  1435                 case opc_sipush:

  1436                     smapper.assign(this, VarType.INTEGER,

  1437                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1438                     );

  1439                     i += 2;

  1440                     break;

  1441                 case opc_getfield: {

  1442                     int indx = readUShortArg(byteCodes, i);

  1443                     String[] fi = jc.getFieldInfoName(indx);

  1444                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1445                     FieldData field = findField(fi);

  1446                     if (field == null) {

  1447                         final String mangleClass = mangleClassName(fi[0]);

  1448                         final String mangleClassAccess = accessClassFalse(mangleClass);

  1449                         smapper.replace(this, type, "@2.call(@1)",

  1450                              smapper.getA(0),

  1451                              accessField(mangleClassAccess, null, fi)

  1452                         );

  1453                     } else {

  1454                         final String fieldOwner = mangleClassName(field.cls.getClassName());

  1455                         smapper.replace(this, type, "@1.@2",

  1456                              smapper.getA(0),

  1457                              accessField(fieldOwner, field, fi)

  1458                         );

  1459                     }

  1460                     i += 2;

  1461                     addReference(fi[0]);

  1462                     break;

  1463                 }

  1464                 case opc_putfield: {

  1465                     int indx = readUShortArg(byteCodes, i);

  1466                     String[] fi = jc.getFieldInfoName(indx);

  1467                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1468                     FieldData field = findField(fi);

  1469                     if (field == null) {

  1470                         final String mangleClass = mangleClassName(fi[0]);

  1471                         final String mangleClassAccess = accessClassFalse(mangleClass);

  1472                         emit(smapper, this, "@3.call(@2, @1);",

  1473                              smapper.popT(type),

  1474                              smapper.popA(),

  1475                              accessField(mangleClassAccess, null, fi)

  1476                         );

  1477                     } else {

  1478                         final String fieldOwner = mangleClassName(field.cls.getClassName());

  1479                         emit(smapper, this, "@2.@3 = @1;",

  1480                              smapper.popT(type),

  1481                              smapper.popA(),

  1482                              accessField(fieldOwner, field, fi)

  1483                         );

  1484                     }

  1485                     i += 2;

  1486                     addReference(fi[0]);

  1487                     break;

  1488                 }

  1489                 case opc_getstatic: {

  1490                     int indx = readUShortArg(byteCodes, i);

  1491                     String[] fi = jc.getFieldInfoName(indx);

  1492                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1493                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1494                     FieldData field = findField(fi);

  1495                     String af = accessField(ac, field, fi);

  1496                     smapper.assign(this, type, af + "()");

  1497                     i += 2;

  1498                     addReference(fi[0]);

  1499                     break;

  1500                 }

  1501                 case opc_putstatic: {

  1502                     int indx = readUShortArg(byteCodes, i);

  1503                     String[] fi = jc.getFieldInfoName(indx);

  1504                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1505                     emit(smapper, this, "@1._@2(@3);",

  1506                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1507                          smapper.popT(type));

  1508                     i += 2;

  1509                     addReference(fi[0]);

  1510                     break;

  1511                 }

  1512                 case opc_checkcast: {

  1513                     int indx = readUShortArg(byteCodes, i);

  1514                     generateCheckcast(indx, smapper);

  1515                     i += 2;

  1516                     break;

  1517                 }

  1518                 case opc_instanceof: {

  1519                     int indx = readUShortArg(byteCodes, i);

  1520                     generateInstanceOf(indx, smapper);

  1521                     i += 2;

  1522                     break;

  1523                 }

  1524                 case opc_athrow: {

  1525                     final CharSequence v = smapper.popA();

  1526                     smapper.clear();

  1528                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1529                          smapper.pushA(), v);

  1530                     break;

  1531                 }

  1533                 case opc_monitorenter: {

  1534                     debug("/* monitor enter */");

  1535                     smapper.popA();

  1536                     break;

  1537                 }

  1539                 case opc_monitorexit: {

  1540                     debug("/* monitor exit */");

  1541                     smapper.popA();

  1542                     break;

  1543                 }

  1545                 case opc_wide:

  1546                     wide = true;

  1547                     break;

  1549                 default: {

  1550                     wide = false;

  1551                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1552                          Integer.toString(c));

  1553                 }

  1554             }

  1555             if (debug(" //")) {

  1556                 generateByteCodeComment(prev, i, byteCodes);

  1557             }

  1558             if (outChanged) {

  1559                 append("\n");

  1560             }

  1561         }

  1562         if (previousTrap != null) {

  1563             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1564         }

  1565         if (didBranches) {

  1566             append("\n    }\n");

  1567         }

  1568         while (openBraces-- > 0) {

  1569             append('}');

  1570         }

  1571         if (defineProp) {

  1572             append("\n}});");

  1573         } else {

  1574             append("\n};");

  1575         }

  1576         return defineProp;

  1577     }

  1579     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1580         int i, final CharSequence v2, final CharSequence v1,

  1581         final String test, int topMostLabel

  1582     ) throws IOException {

  1583         mapper.flush(this);

  1584         int indx = i + readShortArg(byteCodes, i);

  1585         append("if ((").append(v1)

  1586            .append(") ").append(test).append(" (")

  1587            .append(v2).append(")) ");

  1588         goTo(this, i, indx, topMostLabel);

  1589         return i + 2;

  1590     }

  1592     private int readInt4(byte[] byteCodes, int offset) {

  1593         final int d = byteCodes[offset + 0] << 24;

  1594         final int c = byteCodes[offset + 1] << 16;

  1595         final int b = byteCodes[offset + 2] << 8;

  1596         final int a = byteCodes[offset + 3];

  1597         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1598     }

  1599     private static int readUByte(byte[] byteCodes, int offset) {

  1600         return byteCodes[offset] & 0xff;

  1601     }

  1603     private static int readUShort(byte[] byteCodes, int offset) {

  1604         return ((byteCodes[offset] & 0xff) << 8)

  1605                     | (byteCodes[offset + 1] & 0xff);

  1606     }

  1607     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1608         return readUShort(byteCodes, offsetInstruction + 1);

  1609     }

  1611     private static int readShort(byte[] byteCodes, int offset) {

  1612         int signed = byteCodes[offset];

  1613         byte b0 = (byte)signed;

  1614         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1615     }

  1616     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1617         return readShort(byteCodes, offsetInstruction + 1);

  1618     }

  1620     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1621         int i = 0;

  1622         Boolean count = null;

  1623         boolean array = false;

  1624         sig.append("__");

  1625         int firstPos = sig.length();

  1626         while (i < descriptor.length()) {

  1627             char ch = descriptor.charAt(i++);

  1628             switch (ch) {

  1629                 case '(':

  1630                     count = true;

  1631                     continue;

  1632                 case ')':

  1633                     count = false;

  1634                     continue;

  1635                 case 'B':

  1636                 case 'C':

  1637                 case 'D':

  1638                 case 'F':

  1639                 case 'I':

  1640                 case 'J':

  1641                 case 'S':

  1642                 case 'Z':

  1643                     if (count) {

  1644                         if (array) {

  1645                             sig.append("_3");

  1646                         }

  1647                         sig.append(ch);

  1648                         if (ch == 'J' || ch == 'D') {

  1649                             cnt.append('1');

  1650                         } else {

  1651                             cnt.append('0');

  1652                         }

  1653                     } else {

  1654                         sig.insert(firstPos, ch);

  1655                         if (array) {

  1656                             returnType[0] = '[';

  1657                             sig.insert(firstPos, "_3");

  1658                         } else {

  1659                             returnType[0] = ch;

  1660                         }

  1661                     }

  1662                     array = false;

  1663                     continue;

  1664                 case 'V':

  1665                     assert !count;

  1666                     returnType[0] = 'V';

  1667                     sig.insert(firstPos, 'V');

  1668                     continue;

  1669                 case 'L':

  1670                     int next = descriptor.indexOf(';', i);

  1671                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1672                     if (count) {

  1673                         if (array) {

  1674                             sig.append("_3");

  1675                         }

  1676                         sig.append(realSig);

  1677                         cnt.append('0');

  1678                     } else {

  1679                         sig.insert(firstPos, realSig);

  1680                         if (array) {

  1681                             sig.insert(firstPos, "_3");

  1682                         }

  1683                         returnType[0] = 'L';

  1684                     }

  1685                     i = next + 1;

  1686                     array = false;

  1687                     continue;

  1688                 case '[':

  1689                     array = true;

  1690                     continue;

  1691                 default:

  1692                     throw new IllegalStateException("Invalid char: " + ch);

  1693             }

  1694         }

  1695     }

  1697     static String mangleSig(String sig) {

  1698         return mangleSig(sig, 0, sig.length());

  1699     }

  1701     private static String mangleMethodName(String name) {

  1702         StringBuilder sb = new StringBuilder(name.length() * 2);

  1703         int last = name.length();

  1704         for (int i = 0; i < last; i++) {

  1705             final char ch = name.charAt(i);

  1706             switch (ch) {

  1707                 case '_': sb.append("_1"); break;

  1708                 default: sb.append(ch); break;

  1709             }

  1710         }

  1711         return sb.toString();

  1712     }

  1713     private static String mangleSig(String txt, int first, int last) {

  1714         StringBuilder sb = new StringBuilder((last - first) * 2);

  1715         for (int i = first; i < last; i++) {

  1716             final char ch = txt.charAt(i);

  1717             switch (ch) {

  1718                 case '/': sb.append('_'); break;

  1719                 case '_': sb.append("_1"); break;

  1720                 case ';': sb.append("_2"); break;

  1721                 case '[': sb.append("_3"); break;

  1722                 default:

  1723                     if (Character.isJavaIdentifierPart(ch)) {

  1724                         sb.append(ch);

  1725                     } else {

  1726                         sb.append("_0");

  1727                         String hex = Integer.toHexString(ch).toLowerCase();

  1728                         for (int m = hex.length(); m < 4; m++) {

  1729                             sb.append("0");

  1730                         }

  1731                         sb.append(hex);

  1732                     }

  1733                 break;

  1734             }

  1735         }

  1736         return sb.toString();

  1737     }

  1739     private static String mangleClassName(String name) {

  1740         return mangleSig(name);

  1741     }

  1743     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1744         StringBuilder name = new StringBuilder();

  1745         if ("<init>".equals(m.getName())) { // NOI18N

  1746             name.append("cons"); // NOI18N

  1747         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1748             name.append("class"); // NOI18N

  1749         } else {

  1750             name.append(mangleMethodName(m.getName()));

  1751         }

  1753         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1754         return name.toString();

  1755     }

  1757     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1758         StringBuilder name = new StringBuilder();

  1759         String descr = mi[2];//mi.getDescriptor();

  1760         String nm= mi[1];

  1761         if ("<init>".equals(nm)) { // NOI18N

  1762             name.append("cons"); // NOI18N

  1763         } else {

  1764             name.append(mangleMethodName(nm));

  1765         }

  1766         countArgs(descr, returnType, name, cnt);

  1767         return name.toString();

  1768     }

  1770     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1771     throws IOException {

  1772         int methodIndex = readUShortArg(byteCodes, i);

  1773         String[] mi = jc.getFieldInfoName(methodIndex);

  1774         char[] returnType = { 'V' };

  1775         StringBuilder cnt = new StringBuilder();

  1776         String mn = findMethodName(mi, cnt, returnType);

  1778         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1779         final CharSequence[] vars = new CharSequence[numArguments];

  1781         for (int j = numArguments - 1; j >= 0; --j) {

  1782             vars[j] = mapper.popValue();

  1783         }

  1785         if ((

  1786             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1787             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1788         ) || (

  1789             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1790             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1791         )) {

  1792             if (vars[1] instanceof String) {

  1793                 String field = vars[1].toString();

  1794                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1795                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1796                 }

  1797             }

  1798         }

  1799         if (

  1800             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1801             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1802         ) {

  1803             if (vars[1] instanceof String) {

  1804                 String field = vars[2].toString();

  1805                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1806                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1807                 }

  1808             }

  1809         }

  1811         if (returnType[0] != 'V') {

  1812             mapper.flush(this);

  1813             append("var ")

  1814                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1815                .append(" = ");

  1816         }

  1818         final String in = mi[0];

  1819         String mcn;

  1820         if (callbacks && (

  1821             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1822             in.equals("org/netbeans/html/boot/spi/Fn")

  1823         )) {

  1824             mcn = "java_lang_Class";

  1825         } else {

  1826             mcn = mangleClassName(in);

  1827         }

  1828         String object = accessClassFalse(mcn);

  1829         if (mn.startsWith("cons_")) {

  1830             object += ".constructor";

  1831         }

  1832         append(accessStaticMethod(object, mn, mi));

  1833         if (isStatic) {

  1834             append('(');

  1835         } else {

  1836             append(".call(");

  1837         }

  1838         if (numArguments > 0) {

  1839             append(vars[0]);

  1840             for (int j = 1; j < numArguments; ++j) {

  1841                 append(", ");

  1842                 append(vars[j]);

  1843             }

  1844         }

  1845         append(");");

  1846         i += 2;

  1847         addReference(in);

  1848         return i;

  1849     }

  1850     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1851     throws IOException {

  1852         int methodIndex = readUShortArg(byteCodes, i);

  1853         String[] mi = jc.getFieldInfoName(methodIndex);

  1854         char[] returnType = { 'V' };

  1855         StringBuilder cnt = new StringBuilder();

  1856         String mn = findMethodName(mi, cnt, returnType);

  1858         final int numArguments = cnt.length() + 1;

  1859         final CharSequence[] vars =  new CharSequence[numArguments];

  1861         for (int j = numArguments - 1; j >= 0; --j) {

  1862             vars[j] = mapper.popValue();

  1863         }

  1865         if (returnType[0] != 'V') {

  1866             mapper.flush(this);

  1867             append("var ")

  1868                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1869                .append(" = ");

  1870         }

  1872         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1873         String sep = "";

  1874         for (int j = 1; j < numArguments; ++j) {

  1875             append(sep);

  1876             append(vars[j]);

  1877             sep = ", ";

  1878         }

  1879         append(");");

  1880         i += 2;

  1881         return i;

  1882     }

  1884     private void addReference(String cn) throws IOException {

  1885         if (requireReference(cn)) {

  1886             debug(" /* needs " + cn + " */");

  1887         }

  1888     }

  1890     private void outType(String d, StringBuilder out) {

  1891         int arr = 0;

  1892         while (d.charAt(0) == '[') {

  1893             out.append('A');

  1894             d = d.substring(1);

  1895         }

  1896         if (d.charAt(0) == 'L') {

  1897             assert d.charAt(d.length() - 1) == ';';

  1898             out.append(mangleClassName(d).substring(0, d.length() - 1));

  1899         } else {

  1900             out.append(d);

  1901         }

  1902     }

  1904     private String encodeConstant(int entryIndex) throws IOException {

  1905         String[] classRef = { null };

  1906         String s = jc.stringValue(entryIndex, classRef);

  1907         if (classRef[0] != null) {

  1908             if (classRef[0].startsWith("[")) {

  1909                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1910             } else {

  1911                 addReference(classRef[0]);

  1912                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1913             }

  1914         }

  1915         return s;

  1916     }

  1918     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1919         byte[] arr = m.findAnnotationData(true);

  1920         if (arr == null) {

  1921             return null;

  1922         }

  1923         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1924         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1925         class P extends AnnotationParser {

  1926             public P() {

  1927                 super(false, true);

  1928             }

  1930             int cnt;

  1931             String[] args = new String[30];

  1932             String body;

  1933             boolean javacall;

  1934             boolean html4j;

  1936             @Override

  1937             protected void visitAttr(String type, String attr, String at, String value) {

  1938                 if (type.equals(jvmType)) {

  1939                     if ("body".equals(attr)) {

  1940                         body = value;

  1941                     } else if ("args".equals(attr)) {

  1942                         args[cnt++] = value;

  1943                     } else {

  1944                         throw new IllegalArgumentException(attr);

  1945                     }

  1946                 }

  1947                 if (type.equals(htmlType)) {

  1948                     html4j = true;

  1949                     if ("body".equals(attr)) {

  1950                         body = value;

  1951                     } else if ("args".equals(attr)) {

  1952                         args[cnt++] = value;

  1953                     } else if ("javacall".equals(attr)) {

  1954                         javacall = "1".equals(value);

  1955                     } else if ("wait4js".equals(attr)) {

  1956                         // ignore, we always invoke synchronously

  1957                     } else {

  1958                         throw new IllegalArgumentException(attr);

  1959                     }

  1960                 }

  1961             }

  1962         }

  1963         P p = new P();

  1964         p.parse(arr, jc);

  1965         if (p.body == null) {

  1966             return null;

  1967         }

  1968         StringBuilder cnt = new StringBuilder();

  1969         final String mn = findMethodName(m, cnt);

  1970         append("m = ").append(destObject).append(".").append(mn);

  1971         append(" = function(");

  1972         String space = "";

  1973         int index = 0;

  1974         StringBuilder toValue = new StringBuilder();

  1975         for (int i = 0; i < cnt.length(); i++) {

  1976             append(space);

  1977             space = outputArg(this, p.args, index);

  1978             if (p.html4j && space.length() > 0) {

  1979                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1980                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1981                     append(p.args[index]).append(");");

  1982             }

  1983             index++;

  1984         }

  1985         append(") {").append("\n");

  1986         append(toValue.toString());

  1987         if (p.javacall) {

  1988             int lastSlash = jc.getClassName().lastIndexOf('/');

  1989             final String pkg = jc.getClassName().substring(0, lastSlash);

  1990             append(mangleCallbacks(pkg, p.body));

  1991             requireReference(pkg + "/$JsCallbacks$");

  1992         } else {

  1993             append(p.body);

  1994         }

  1995         append("\n}\n");

  1996         return mn;

  1997     }

  1999     private static CharSequence mangleCallbacks(String pkgName, String body) {

  2000         StringBuilder sb = new StringBuilder();

  2001         int pos = 0;

  2002         for (;;) {

  2003             int next = body.indexOf(".@", pos);

  2004             if (next == -1) {

  2005                 sb.append(body.substring(pos));

  2006                 body = sb.toString();

  2007                 break;

  2008             }

  2009             int ident = next;

  2010             while (ident > 0) {

  2011                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  2012                     ident++;

  2013                     break;

  2014                 }

  2015             }

  2016             String refId = body.substring(ident, next);

  2018             sb.append(body.substring(pos, ident));

  2020             int sigBeg = body.indexOf('(', next);

  2021             int sigEnd = body.indexOf(')', sigBeg);

  2022             int colon4 = body.indexOf("::", next);

  2023             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  2024                 throw new IllegalStateException("Malformed body " + body);

  2025             }

  2026             String fqn = body.substring(next + 2, colon4);

  2027             String method = body.substring(colon4 + 2, sigBeg);

  2028             String params = body.substring(sigBeg, sigEnd + 1);

  2030             int paramBeg = body.indexOf('(', sigEnd + 1);

  2032             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  2033             sb.append(mangleJsCallbacks(fqn, method, params, false));

  2034             sb.append("(").append(refId);

  2035             if (body.charAt(paramBeg + 1) != ')') {

  2036                 sb.append(",");

  2037             }

  2038             pos = paramBeg + 1;

  2039         }

  2040         sb = null;

  2041         pos = 0;

  2042         for (;;) {

  2043             int next = body.indexOf("@", pos);

  2044             if (next == -1) {

  2045                 if (sb == null) {

  2046                     return body;

  2047                 }

  2048                 sb.append(body.substring(pos));

  2049                 return sb;

  2050             }

  2051             if (sb == null) {

  2052                 sb = new StringBuilder();

  2053             }

  2055             sb.append(body.substring(pos, next));

  2057             int sigBeg = body.indexOf('(', next);

  2058             int sigEnd = body.indexOf(')', sigBeg);

  2059             int colon4 = body.indexOf("::", next);

  2060             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  2061                 throw new IllegalStateException("Malformed body " + body);

  2062             }

  2063             String fqn = body.substring(next + 1, colon4);

  2064             String method = body.substring(colon4 + 2, sigBeg);

  2065             String params = body.substring(sigBeg, sigEnd + 1);

  2067             int paramBeg = body.indexOf('(', sigEnd + 1);

  2069             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  2070             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2071             sb.append("(");

  2072             pos = paramBeg + 1;

  2073         }

  2074     }

  2076     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2077         if (params.startsWith("(")) {

  2078             params = params.substring(1);

  2079         }

  2080         if (params.endsWith(")")) {

  2081             params = params.substring(0, params.length() - 1);

  2082         }

  2083         StringBuilder sb = new StringBuilder();

  2084         final String fqnu = fqn.replace('.', '_');

  2085         final String rfqn = mangleClassName(fqnu);

  2086         final String rm = mangleMethodName(method);

  2087         final String srp;

  2088         {

  2089             StringBuilder pb = new StringBuilder();

  2090             int len = params.length();

  2091             int indx = 0;

  2092             while (indx < len) {

  2093                 char ch = params.charAt(indx);

  2094                 if (ch == '[' || ch == 'L') {

  2095                     int column = params.indexOf(';', indx) + 1;

  2096                     if (column > indx) {

  2097                         String real = params.substring(indx, column);

  2098                         if ("Ljava/lang/String;".equals(real)) {

  2099                             pb.append("Ljava/lang/String;");

  2100                             indx = column;

  2101                             continue;

  2102                         }

  2103                     }

  2104                     pb.append("Ljava/lang/Object;");

  2105                     indx = column;

  2106                 } else {

  2107                     pb.append(ch);

  2108                     indx++;

  2109                 }

  2110             }

  2111             srp = mangleSig(pb.toString());

  2112         }

  2113         final String rp = mangleSig(params);

  2114         final String mrp = mangleMethodName(rp);

  2115         sb.append(rfqn).append("$").append(rm).

  2116             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2117         if (!isStatic) {

  2118             sb.append('L').append(fqnu).append("_2");

  2119         }

  2120         sb.append(srp);

  2121         return sb.toString();

  2122     }

  2124     private static String className(ClassData jc) {

  2125         //return jc.getName().getInternalName().replace('/', '_');

  2126         return mangleClassName(jc.getClassName());

  2127     }

  2129     private static String[] findAnnotation(

  2130         byte[] arr, ClassData cd, final String className,

  2131         final String... attrNames

  2132     ) throws IOException {

  2133         if (arr == null) {

  2134             return null;

  2135         }

  2136         final String[] values = new String[attrNames.length];

  2137         final boolean[] found = { false };

  2138         final String jvmType = "L" + className.replace('.', '/') + ";";

  2139         AnnotationParser ap = new AnnotationParser(false, true) {

  2140             @Override

  2141             protected void visitAttr(String type, String attr, String at, String value) {

  2142                 if (type.equals(jvmType)) {

  2143                     found[0] = true;

  2144                     for (int i = 0; i < attrNames.length; i++) {

  2145                         if (attrNames[i].equals(attr)) {

  2146                             values[i] = value;

  2147                         }

  2148                     }

  2149                 }

  2150             }

  2152         };

  2153         ap.parse(arr, cd);

  2154         return found[0] ? values : null;

  2155     }

  2157     private CharSequence initField(FieldData v) {

  2158         final String is = v.getInternalSig();

  2159         if (is.length() == 1) {

  2160             switch (is.charAt(0)) {

  2161                 case 'S':

  2162                 case 'J':

  2163                 case 'B':

  2164                 case 'Z':

  2165                 case 'C':

  2166                 case 'I': return " = 0;";

  2167                 case 'F':

  2168                 case 'D': return " = 0.0;";

  2169                 default:

  2170                     throw new IllegalStateException(is);

  2171             }

  2172         }

  2173         return " = null;";

  2174     }

  2176     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2177         final String name = args[indx];

  2178         if (name == null) {

  2179             return "";

  2180         }

  2181         if (name.contains(",")) {

  2182             throw new IOException("Wrong parameter with ',': " + name);

  2183         }

  2184         out.append(name);

  2185         return ",";

  2186     }

  2188     final void emitNoFlush(

  2189         StackMapper sm,

  2190         final String format, final CharSequence... params

  2191     ) throws IOException {

  2192         emitImpl(this, format, params);

  2193     }

  2194     static final void emit(

  2195         StackMapper sm,

  2196         final Appendable out,

  2197         final String format, final CharSequence... params

  2198     ) throws IOException {

  2199         sm.flush(out);

  2200         emitImpl(out, format, params);

  2201     }

  2202     static void emitImpl(final Appendable out,

  2203                              final String format,

  2204                              final CharSequence... params) throws IOException {

  2205         final int length = format.length();

  2207         int processed = 0;

  2208         int paramOffset = format.indexOf('@');

  2209         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2210             final char paramChar = format.charAt(paramOffset + 1);

  2211             if ((paramChar >= '1') && (paramChar <= '9')) {

  2212                 final int paramIndex = paramChar - '0' - 1;

  2214                 out.append(format, processed, paramOffset);

  2215                 out.append(params[paramIndex]);

  2217                 ++paramOffset;

  2218                 processed = paramOffset + 1;

  2219             }

  2221             paramOffset = format.indexOf('@', paramOffset + 1);

  2222         }

  2224         out.append(format, processed, length);

  2225     }

  2227     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2228         append("} catch (e) {\n");

  2229         int finallyPC = -1;

  2230         for (TrapData e : traps) {

  2231             if (e == null) {

  2232                 break;

  2233             }

  2234             if (e.catch_cpx != 0) { //not finally

  2235                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2236                 addReference(classInternalName);

  2237                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2238                 append("if (e['$instOf_" + mangleClassName(classInternalName) + "']) {");

  2239                 append("var stA0 = e;");

  2240                 goTo(this, current, e.handler_pc, topMostLabel);

  2241                 append("}\n");

  2242             } else {

  2243                 finallyPC = e.handler_pc;

  2244             }

  2245         }

  2246         if (finallyPC == -1) {

  2247             append("throw e;");

  2248         } else {

  2249             append("var stA0 = e;");

  2250             goTo(this, current, finallyPC, topMostLabel);

  2251         }

  2252         append("\n}");

  2253     }

  2255     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2256         if (to < current) {

  2257             if (canBack < to) {

  2258                 out.append("{ gt = 0; continue X_" + to + "; }");

  2259             } else {

  2260                 out.append("{ gt = " + to + "; continue X_0; }");

  2261             }

  2262         } else {

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

  2264         }

  2265     }

  2267     private static void emitIf(

  2268         StackMapper sm,

  2269         Appendable out, String pattern,

  2270         CharSequence param,

  2271         int current, int to, int canBack

  2272     ) throws IOException {

  2273         sm.flush(out);

  2274         emitImpl(out, pattern, param);

  2275         goTo(out, current, to, canBack);

  2276     }

  2278     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2279         String jvmType;

  2280         switch (atype) {

  2281             case 4: jvmType = "[Z"; break;

  2282             case 5: jvmType = "[C"; break;

  2283             case 6: jvmType = "[F"; break;

  2284             case 7: jvmType = "[D"; break;

  2285             case 8: jvmType = "[B"; break;

  2286             case 9: jvmType = "[S"; break;

  2287             case 10: jvmType = "[I"; break;

  2288             case 11: jvmType = "[J"; break;

  2289             default: throw new IllegalStateException("Array type: " + atype);

  2290         }

  2291         emit(smapper, this,

  2292             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2293              smapper.popI(), smapper.pushA(), jvmType);

  2294     }

  2296     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2297         String typeName = jc.getClassName(type);

  2298         String ref = "null";

  2299         if (typeName.startsWith("[")) {

  2300             typeName = "'[" + typeName + "'";

  2301         } else {

  2302             ref = "vm." + mangleClassName(typeName);

  2303             typeName = "'[L" + typeName + ";'";

  2304         }

  2305         emit(smapper, this,

  2306             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2307              smapper.popI(), smapper.pushA(), typeName, ref);

  2308     }

  2310     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2311         String typeName = jc.getClassName(type);

  2312         int dim = readUByte(byteCodes, ++i);

  2313         StringBuilder dims = new StringBuilder();

  2314         dims.append('[');

  2315         for (int d = 0; d < dim; d++) {

  2316             if (d != 0) {

  2317                 dims.insert(1, ",");

  2318             }

  2319             dims.insert(1, smapper.popI());

  2320         }

  2321         dims.append(']');

  2322         String fn = "null";

  2323         if (typeName.charAt(dim) == 'L') {

  2324             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2325         }

  2326         emit(smapper, this,

  2327             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2328              dims.toString(), smapper.pushA(), typeName, fn

  2329         );

  2330         return i;

  2331     }

  2333     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2334         int table = i / 4 * 4 + 4;

  2335         int dflt = i + readInt4(byteCodes, table);

  2336         table += 4;

  2337         int low = readInt4(byteCodes, table);

  2338         table += 4;

  2339         int high = readInt4(byteCodes, table);

  2340         table += 4;

  2341         final CharSequence swVar = smapper.popValue();

  2342         smapper.flush(this);

  2343         append("switch (").append(swVar).append(") {\n");

  2344         while (low <= high) {

  2345             int offset = i + readInt4(byteCodes, table);

  2346             table += 4;

  2347             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2348             low++;

  2349         }

  2350         append("  default: ");

  2351         goTo(this, i, dflt, topMostLabel);

  2352         append("\n}");

  2353         i = table - 1;

  2354         return i;

  2355     }

  2357     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2358         int table = i / 4 * 4 + 4;

  2359         int dflt = i + readInt4(byteCodes, table);

  2360         table += 4;

  2361         int n = readInt4(byteCodes, table);

  2362         table += 4;

  2363         final CharSequence swVar = smapper.popValue();

  2364         smapper.flush(this);

  2365         append("switch (").append(swVar).append(") {\n");

  2366         while (n-- > 0) {

  2367             int cnstnt = readInt4(byteCodes, table);

  2368             table += 4;

  2369             int offset = i + readInt4(byteCodes, table);

  2370             table += 4;

  2371             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2372         }

  2373         append("  default: ");

  2374         goTo(this, i, dflt, topMostLabel);

  2375         append("\n}");

  2376         i = table - 1;

  2377         return i;

  2378     }

  2380     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2381         String type = jc.getClassName(indx);

  2382         if (!type.startsWith("[")) {

  2383             emit(smapper, this,

  2384                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2385                  smapper.popA(), smapper.pushI(),

  2386                  mangleClassName(type));

  2387         } else {

  2388             int cnt = 0;

  2389             while (type.charAt(cnt) == '[') {

  2390                 cnt++;

  2391             }

  2392             if (type.charAt(cnt) == 'L') {

  2393                 String component = type.substring(cnt + 1, type.length() - 1);

  2394                 requireReference(component);

  2395                 type = "vm." + mangleClassName(component);

  2396                 emit(smapper, this,

  2397                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

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

  2399                     type, "" + cnt

  2400                 );

  2401             } else {

  2402                 emit(smapper, this,

  2403                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2404                     smapper.popA(), smapper.pushI(), type

  2405                 );

  2406             }

  2407         }

  2408     }

  2410     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2411         String type = jc.getClassName(indx);

  2412         if (!type.startsWith("[")) {

  2413             emitNoFlush(smapper,

  2414                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2415                  smapper.getT(0, VarType.REFERENCE, false), mangleClassName(type));

  2416         } else {

  2417             int cnt = 0;

  2418             while (type.charAt(cnt) == '[') {

  2419                 cnt++;

  2420             }

  2421             if (type.charAt(cnt) == 'L') {

  2422                 String component = type.substring(cnt + 1, type.length() - 1);

  2423                 requireReference(component);

  2424                 type = "vm." + mangleClassName(component);

  2425                 emitNoFlush(smapper,

  2426                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2427                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2428                 );

  2429             } else {

  2430                 emitNoFlush(smapper,

  2431                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2432                      smapper.getT(0, VarType.REFERENCE, false), type

  2433                 );

  2434             }

  2435         }

  2436     }

  2438     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2439         for (int j = prev; j <= i; j++) {

  2440             append(" ");

  2441             final int cc = readUByte(byteCodes, j);

  2442             append(Integer.toString(cc));

  2443         }

  2444     }

  2446     @JavaScriptBody(args = "msg", body = "")

  2447     private static void println(String msg) {

  2448         System.err.println(msg);

  2449     }

  2451     private class GenerateAnno extends AnnotationParser {

  2452         public GenerateAnno(boolean textual, boolean iterateArray) {

  2453             super(textual, iterateArray);

  2454         }

  2455         int[] cnt = new int[32];

  2456         int depth;

  2458         @Override

  2459         protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2460             final String slashType = attrType.substring(1, attrType.length() - 1);

  2461             requireReference(slashType);

  2463             if (cnt[depth]++ > 0) {

  2464                 append(",");

  2465             }

  2466             if (top) {

  2467                 append('"').append(attrType).append("\" : ");

  2468             }

  2469             append("{\n");

  2470             cnt[++depth] = 0;

  2471         }

  2473         @Override

  2474         protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2475             append("\n}\n");

  2476             depth--;

  2477         }

  2479         @Override

  2480         protected void visitValueStart(String attrName, char type) throws IOException {

  2481             if (cnt[depth]++ > 0) {

  2482                 append(",\n");

  2483             }

  2484             cnt[++depth] = 0;

  2485             if (attrName != null) {

  2486                 append('"').append(attrName).append("\" : ");

  2487             }

  2488             if (type == '[') {

  2489                 append("[");

  2490             }

  2491         }

  2493         @Override

  2494         protected void visitValueEnd(String attrName, char type) throws IOException {

  2495             if (type == '[') {

  2496                 append("]");

  2497             }

  2498             depth--;

  2499         }

  2501         @Override

  2502         protected void visitAttr(String type, String attr, String attrType, String value)

  2503             throws IOException {

  2504             if (attr == null && value == null) {

  2505                 return;

  2506             }

  2507             append(value);

  2508         }

  2510         @Override

  2511         protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2512             throws IOException {

  2513             final String slashType = attrType.substring(1, attrType.length() - 1);

  2514             requireReference(slashType);

  2516             final String cn = mangleClassName(slashType);

  2517             append(accessClassFalse(cn))

  2518                 .append("['valueOf__L").

  2519                 append(cn).

  2520                 append("_2Ljava_lang_String_2']('").

  2521                 append(value).

  2522                 append("')");

  2523         }

  2525         @Override

  2526         protected void visitClassAttr(String annoType, String attr, String className) throws IOException {

  2527             final String slashType = className.substring(1, className.length() - 1);

  2528             requireReference(slashType);

  2530             final String cn = mangleClassName(slashType);

  2531             append(accessClassFalse(cn)).append(".constructor.$class");

  2532         }

  2533     }

  2534 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Sun, 20 Mar 2016 15:26:19 +0100
changeset 1902	c3dee54ecc15
parent 1898	cf6d5d357696
child 1906	48053538940a
permissions	-rw-r--r--