hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@e1953d8b8338

     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 declaredClass(ClassData classData, String mangledName)

   134             throws IOException {

   135     }

   137     protected void declaredField(FieldData fieldData,

   138                                  String destObject,

   139                                  String mangledName) throws IOException {

   140     }

   142     protected void declaredMethod(MethodData methodData,

   143                                   String destObject,

   144                                   String mangledName) throws IOException {

   145     }

   147     /** Prints out a debug message.

   148      *

   149      * @param msg the message

   150      * @return true if the message has been printed

   151      * @throws IOException

   152      */

   153     boolean debug(String msg) throws IOException {

   154         append(msg);

   155         return true;

   156     }

   158     /**

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

   160      *

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

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

   163      *

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

   165      */

   167     public String compile(InputStream classFile) throws IOException {

   168         return compile(new ClassData(classFile));

   169     }

   171     protected String compile(ClassData classData) throws IOException {

   172         this.jc = classData;

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

   174         try {

   175             return compileImpl(cn);

   176         } catch (IOException ex) {

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

   178         }

   179     }

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

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

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

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

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

   186             );

   187         }

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

   189         {

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

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

   192                 "resource", "processByteCode"

   193             );

   194             if (arr != null) {

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

   196                     requireScript(arr[0]);

   197                 }

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

   199                     return null;

   200                 }

   201             }

   202         }

   203         final String jsResource;

   204         {

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

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

   207                 "value"

   208             );

   209             if (arr != null) {

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

   211                     jsResource = arr[0];

   212                 } else {

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

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

   215                 }

   216             } else {

   217                 jsResource = null;

   218             }

   219         }

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

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

   222             "container", "prototype"

   223         );

   224         StringArray toInitilize = new StringArray();

   225         final String className = className(jc);

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

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

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

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

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

   231         if (proto == null) {

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

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

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

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

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

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

   238         } else {

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

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

   241                 proto[0] = "p";

   242             }

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

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

   245         }

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

   247             if (v.isStatic()) {

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

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

   250                         continue;

   251                     }

   252                 }

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

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

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

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

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

   258             } else {

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

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

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

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

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

   264                     .append("; };");

   265             }

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

   268         }

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

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

   271             if (javaScriptOnly(onlyArr)) continue;

   272             String destObject;

   273             String mn;

   274             append("\n    ");

   275             if (m.isStatic()) {

   276                 destObject = "c";

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

   278             } else {

   279                 if (m.isConstructor()) {

   280                     destObject = "CLS";

   281                     mn = generateInstanceMethod(destObject, m);

   282                 } else {

   283                     destObject = "c";

   284                     mn = generateInstanceMethod(destObject, m);

   285                 }

   286             }

   287             declaredMethod(m, destObject, mn);

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

   289             if (runAnno != null) {

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

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

   292                 ap.parse(runAnno, jc);

   293                 append("\n    };");

   294             }

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

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

   297         }

   298         append(numbers.generate());

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

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

   301         String instOfName = "$instOf_" + className;

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

   303         if (jc.isInterface()) {

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

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

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

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

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

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

   310                 }

   311             }

   312         }

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

   314             String intrfc = mangleClassName(superInterface);

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

   316             requireReference(superInterface);

   317         }

   318         append("\n    }");

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

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

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

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

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

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

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

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

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

   328         {

   329             boolean first = true;

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

   331                 if (!first) {

   332                     append(",");

   333                 }

   334                 requireReference(intrfc);

   335                 String mangledIface = mangleClassName(intrfc);

   336                 append("\n        ");

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

   338                 first = false;

   339             }

   340         }

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

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

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

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

   345         if (classAnno != null) {

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

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

   348             ap.parse(classAnno, jc);

   349             append("\n    };");

   350         }

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

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

   353         }

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

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

   356         }

   357         classRefs.clear();

   359         if (jsResource != null) {

   360             requireResource(jsResource);

   361         }

   363         append("\n  }");

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

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

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

   367         append("\n    }");

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

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

   370             if (javaScriptOnly(onlyArr)) continue;

   371             if (!v.isStatic()) {

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

   373                     append(className).append('_').

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

   375             }

   376         }

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

   378         append("\n  }");

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

   380         append("\n};");

   382         declaredClass(jc, className);

   384 //        StringBuilder sb = new StringBuilder();

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

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

   387 //        }

   388         return "";

   389     }

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

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

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

   394             "name", "value"

   395         );

   396         if (only != null) {

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

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

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

   400             }

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

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

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

   404             }

   405             return true;

   406         }

   407         return false;

   408     }

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

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

   411         if (jsb != null) {

   412             return jsb;

   413         }

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

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

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

   417             if (defineProp) {

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

   419             } else {

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

   421             }

   422         }

   423         return mn;

   424     }

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

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

   428         if (jsb != null) {

   429             return jsb;

   430         }

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

   432         generateMethod(destObject, mn, m);

   433         return mn;

   434     }

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

   437             throws IOException {

   438         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   439         TrapDataIterator trap = m.getTrapDataIterator();

   440         final LocalsMapper lmapper =

   441                 new LocalsMapper(stackMapIterator.getArguments());

   443         boolean defineProp =

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

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

   447         if (defineProp) {

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

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

   450         } else {

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

   452         }

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

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

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

   457         if (byteCodes == null) {

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

   459             if (defaultAttr != null) {

   460                 append("  return ");

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

   462                 ap.parseDefault(defaultAttr, jc);

   463                 append(";\n");

   464             } else {

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

   466                    this

   467                    .append(jc.getClassName()).append('.')

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

   469                 }

   470             }

   471             if (defineProp) {

   472                 append("}});");

   473             } else {

   474                 append("};");

   475             }

   476             return defineProp;

   477         }

   479         final StackMapper smapper = new StackMapper();

   481         if (!m.isStatic()) {

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

   483         }

   485         int lastStackFrame;

   486         TrapData[] previousTrap = null;

   487         boolean wide = false;

   488         boolean didBranches;

   489         if (stackMapIterator.isEmpty()) {

   490             didBranches = false;

   491             lastStackFrame = 0;

   492         } else {

   493             didBranches = true;

   494             lastStackFrame = -1;

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

   496         }

   498         int openBraces = 0;

   499         int topMostLabel = 0;

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

   501             int prev = i;

   502             outChanged = false;

   503             stackMapIterator.advanceTo(i);

   504             boolean changeInCatch = trap.advanceTo(i);

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

   506                 if (previousTrap != null) {

   507                     generateCatch(previousTrap, i, topMostLabel);

   508                     previousTrap = null;

   509                 }

   510             }

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

   512                 smapper.flush(this);

   513                 if (i != 0) {

   514                     append("    }\n");

   515                 }

   516                 if (openBraces > 64) {

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

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

   519                     }

   520                     openBraces = 1;

   521                     topMostLabel = i;

   522                 }

   524                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   528                 openBraces++;

   529                 changeInCatch = true;

   530             } else {

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

   532             }

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

   534                 append("try {");

   535                 previousTrap = trap.current();

   536             }

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

   538             switch (c) {

   539                 case opc_aload_0:

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

   541                     break;

   542                 case opc_iload_0:

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

   544                     break;

   545                 case opc_lload_0:

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

   547                     break;

   548                 case opc_fload_0:

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

   550                     break;

   551                 case opc_dload_0:

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

   553                     break;

   554                 case opc_aload_1:

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

   556                     break;

   557                 case opc_iload_1:

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

   559                     break;

   560                 case opc_lload_1:

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

   562                     break;

   563                 case opc_fload_1:

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

   565                     break;

   566                 case opc_dload_1:

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

   568                     break;

   569                 case opc_aload_2:

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

   571                     break;

   572                 case opc_iload_2:

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

   574                     break;

   575                 case opc_lload_2:

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

   577                     break;

   578                 case opc_fload_2:

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

   580                     break;

   581                 case opc_dload_2:

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

   583                     break;

   584                 case opc_aload_3:

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

   586                     break;

   587                 case opc_iload_3:

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

   589                     break;

   590                 case opc_lload_3:

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

   592                     break;

   593                 case opc_fload_3:

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

   595                     break;

   596                 case opc_dload_3:

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

   598                     break;

   599                 case opc_iload: {

   600                     ++i;

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

   602                                           : readUByte(byteCodes, i);

   603                     wide = false;

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

   605                     break;

   606                 }

   607                 case opc_lload: {

   608                     ++i;

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

   610                                           : readUByte(byteCodes, i);

   611                     wide = false;

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

   613                     break;

   614                 }

   615                 case opc_fload: {

   616                     ++i;

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

   618                                           : readUByte(byteCodes, i);

   619                     wide = false;

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

   621                     break;

   622                 }

   623                 case opc_dload: {

   624                     ++i;

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

   626                                           : readUByte(byteCodes, i);

   627                     wide = false;

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

   629                     break;

   630                 }

   631                 case opc_aload: {

   632                     ++i;

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

   634                                           : readUByte(byteCodes, i);

   635                     wide = false;

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

   637                     break;

   638                 }

   639                 case opc_istore: {

   640                     ++i;

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

   642                                           : readUByte(byteCodes, i);

   643                     wide = false;

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

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

   646                     break;

   647                 }

   648                 case opc_lstore: {

   649                     ++i;

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

   651                                           : readUByte(byteCodes, i);

   652                     wide = false;

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

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

   655                     break;

   656                 }

   657                 case opc_fstore: {

   658                     ++i;

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

   660                                           : readUByte(byteCodes, i);

   661                     wide = false;

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

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

   664                     break;

   665                 }

   666                 case opc_dstore: {

   667                     ++i;

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

   669                                           : readUByte(byteCodes, i);

   670                     wide = false;

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

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

   673                     break;

   674                 }

   675                 case opc_astore: {

   676                     ++i;

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

   678                                           : readUByte(byteCodes, i);

   679                     wide = false;

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

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

   682                     break;

   683                 }

   684                 case opc_astore_0:

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

   686                     break;

   687                 case opc_istore_0:

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

   689                     break;

   690                 case opc_lstore_0:

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

   692                     break;

   693                 case opc_fstore_0:

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

   695                     break;

   696                 case opc_dstore_0:

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

   698                     break;

   699                 case opc_astore_1:

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

   701                     break;

   702                 case opc_istore_1:

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

   704                     break;

   705                 case opc_lstore_1:

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

   707                     break;

   708                 case opc_fstore_1:

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

   710                     break;

   711                 case opc_dstore_1:

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

   713                     break;

   714                 case opc_astore_2:

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

   716                     break;

   717                 case opc_istore_2:

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

   719                     break;

   720                 case opc_lstore_2:

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

   722                     break;

   723                 case opc_fstore_2:

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

   725                     break;

   726                 case opc_dstore_2:

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

   728                     break;

   729                 case opc_astore_3:

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

   731                     break;

   732                 case opc_istore_3:

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

   734                     break;

   735                 case opc_lstore_3:

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

   737                     break;

   738                 case opc_fstore_3:

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

   740                     break;

   741                 case opc_dstore_3:

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

   743                     break;

   744                 case opc_iadd:

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

   746                     break;

   747                 case opc_ladd:

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

   749                     break;

   750                 case opc_fadd:

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

   752                     break;

   753                 case opc_dadd:

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

   755                     break;

   756                 case opc_isub:

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

   758                     break;

   759                 case opc_lsub:

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

   761                     break;

   762                 case opc_fsub:

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

   764                     break;

   765                 case opc_dsub:

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

   767                     break;

   768                 case opc_imul:

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

   770                     break;

   771                 case opc_lmul:

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

   773                     break;

   774                 case opc_fmul:

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

   776                     break;

   777                 case opc_dmul:

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

   779                     break;

   780                 case opc_idiv:

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

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

   783                     break;

   784                 case opc_ldiv:

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

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

   787                     break;

   788                 case opc_fdiv:

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

   790                     break;

   791                 case opc_ddiv:

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

   793                     break;

   794                 case opc_irem:

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

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

   797                     break;

   798                 case opc_lrem:

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

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

   801                     break;

   802                 case opc_frem:

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

   804                     break;

   805                 case opc_drem:

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

   807                     break;

   808                 case opc_iand:

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

   810                     break;

   811                 case opc_land:

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

   813                     break;

   814                 case opc_ior:

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

   816                     break;

   817                 case opc_lor:

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

   819                     break;

   820                 case opc_ixor:

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

   822                     break;

   823                 case opc_lxor:

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

   825                     break;

   826                 case opc_ineg:

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

   828                     break;

   829                 case opc_lneg:

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

   831                     break;

   832                 case opc_fneg:

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

   834                     break;

   835                 case opc_dneg:

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

   837                     break;

   838                 case opc_ishl:

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

   840                     break;

   841                 case opc_lshl:

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

   843                     break;

   844                 case opc_ishr:

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

   846                     break;

   847                 case opc_lshr:

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

   849                     break;

   850                 case opc_iushr:

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

   852                     break;

   853                 case opc_lushr:

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

   855                     break;

   856                 case opc_iinc: {

   857                     ++i;

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

   859                                              : readUByte(byteCodes, i);

   860                     ++i;

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

   862                                             : byteCodes[i];

   863                     wide = false;

   864                     if (incrBy == 1) {

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

   866                     } else {

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

   868                              lmapper.getI(varIndx),

   869                              Integer.toString(incrBy));

   870                     }

   871                     break;

   872                 }

   873                 case opc_return:

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

   875                     break;

   876                 case opc_ireturn:

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

   878                     break;

   879                 case opc_lreturn:

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

   881                     break;

   882                 case opc_freturn:

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

   884                     break;

   885                 case opc_dreturn:

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

   887                     break;

   888                 case opc_areturn:

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

   890                     break;

   891                 case opc_i2l:

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

   893                     break;

   894                 case opc_i2f:

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

   896                     break;

   897                 case opc_i2d:

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

   899                     break;

   900                 case opc_l2i:

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

   902                     break;

   903                     // max int check?

   904                 case opc_l2f:

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

   906                     break;

   907                 case opc_l2d:

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

   909                     break;

   910                 case opc_f2d:

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

   912                          smapper.getF(0));

   913                     break;

   914                 case opc_d2f:

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

   916                          smapper.getD(0));

   917                     break;

   918                 case opc_f2i:

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

   920                          smapper.getF(0));

   921                     break;

   922                 case opc_f2l:

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

   924                          smapper.getF(0));

   925                     break;

   926                 case opc_d2i:

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

   928                          smapper.getD(0));

   929                     break;

   930                 case opc_d2l:

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

   932                     break;

   933                 case opc_i2b:

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

   935                     break;

   936                 case opc_i2c:

   937                 case opc_i2s:

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

   939                     break;

   940                 case opc_aconst_null:

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

   942                     break;

   943                 case opc_iconst_m1:

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

   945                     break;

   946                 case opc_iconst_0:

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

   948                     break;

   949                 case opc_dconst_0:

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

   951                     break;

   952                 case opc_lconst_0:

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

   954                     break;

   955                 case opc_fconst_0:

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

   957                     break;

   958                 case opc_iconst_1:

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

   960                     break;

   961                 case opc_lconst_1:

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

   963                     break;

   964                 case opc_fconst_1:

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

   966                     break;

   967                 case opc_dconst_1:

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

   969                     break;

   970                 case opc_iconst_2:

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

   972                     break;

   973                 case opc_fconst_2:

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

   975                     break;

   976                 case opc_iconst_3:

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

   978                     break;

   979                 case opc_iconst_4:

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

   981                     break;

   982                 case opc_iconst_5:

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

   984                     break;

   985                 case opc_ldc: {

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

   987                     String v = encodeConstant(indx);

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

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

   990                     break;

   991                 }

   992                 case opc_ldc_w:

   993                 case opc_ldc2_w: {

   994                     int indx = readUShortArg(byteCodes, i);

   995                     i += 2;

   996                     String v = encodeConstant(indx);

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

   998                     if (type == VarType.LONG) {

   999                         final Long lv = new Long(v);

  1000                         final int low = (int)(lv.longValue() & 0xFFFFFFFF);

  1001                         final int hi = (int)(lv.longValue() >> 32);

  1002                         if (hi == 0) {

  1003                             smapper.assign(this, VarType.LONG, "0x" + Integer.toHexString(low));

  1004                         } else {

  1005                             smapper.assign(this, VarType.LONG,

  1006                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

  1007                                     Integer.toHexString(low) + ")"

  1008                             );

  1009                         }

  1010                     } else {

  1011                         smapper.assign(this, type, v);

  1012                     }

  1013                     break;

  1014                 }

  1015                 case opc_lcmp:

  1016                     smapper.replace(this, VarType.INTEGER, numbers.compare64(), smapper.popL(), smapper.getL(0));

  1017                     break;

  1018                 case opc_fcmpl:

  1019                 case opc_fcmpg:

  1020                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1021                          smapper.popF(), smapper.popF(), smapper.pushI());

  1022                     break;

  1023                 case opc_dcmpl:

  1024                 case opc_dcmpg:

  1025                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1026                          smapper.popD(), smapper.popD(), smapper.pushI());

  1027                     break;

  1028                 case opc_if_acmpeq:

  1029                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

  1030                                    "===", topMostLabel);

  1031                     break;

  1032                 case opc_if_acmpne:

  1033                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

  1034                                    "!==", topMostLabel);

  1035                     break;

  1036                 case opc_if_icmpeq:

  1037                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1038                                    "==", topMostLabel);

  1039                     break;

  1040                 case opc_ifeq: {

  1041                     int indx = i + readShortArg(byteCodes, i);

  1042                     emitIf(smapper, this, "if ((@1) == 0) ",

  1043                          smapper.popI(), i, indx, topMostLabel);

  1044                     i += 2;

  1045                     break;

  1046                 }

  1047                 case opc_ifne: {

  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_iflt: {

  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_ifle: {

  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_ifgt: {

  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_ifge: {

  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_ifnonnull: {

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

  1084                     emitIf(smapper, this, "if ((@1) !== null) ",

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

  1086                     i += 2;

  1087                     break;

  1088                 }

  1089                 case opc_ifnull: {

  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_if_icmpne:

  1097                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1098                                    "!=", topMostLabel);

  1099                     break;

  1100                 case opc_if_icmplt:

  1101                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1102                                    "<", topMostLabel);

  1103                     break;

  1104                 case opc_if_icmple:

  1105                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1106                                    "<=", topMostLabel);

  1107                     break;

  1108                 case opc_if_icmpgt:

  1109                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1110                                    ">", topMostLabel);

  1111                     break;

  1112                 case opc_if_icmpge:

  1113                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1114                                    ">=", topMostLabel);

  1115                     break;

  1116                 case opc_goto: {

  1117                     smapper.flush(this);

  1118                     int indx = i + readShortArg(byteCodes, i);

  1119                     goTo(this, i, indx, topMostLabel);

  1120                     i += 2;

  1121                     break;

  1122                 }

  1123                 case opc_lookupswitch: {

  1124                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1125                     break;

  1126                 }

  1127                 case opc_tableswitch: {

  1128                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1129                     break;

  1130                 }

  1131                 case opc_invokeinterface: {

  1132                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1133                     break;

  1134                 }

  1135                 case opc_invokevirtual:

  1136                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1137                     break;

  1138                 case opc_invokespecial:

  1139                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1140                     break;

  1141                 case opc_invokestatic:

  1142                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1143                     break;

  1144                 case opc_invokedynamic: {

  1145                     int indx = readUShortArg(byteCodes, i);

  1146                     println("invoke dynamic: " + indx);

  1147                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1148                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1149                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1150                     println("  type: " + methodHandle.cpx1);

  1151                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1152                     String mcn = mangleClassName(mi[0]);

  1153                     char[] returnType = {'V'};

  1154                     StringBuilder cnt = new StringBuilder();

  1155                     String mn = findMethodName(mi, cnt, returnType);

  1156                     StringBuilder sb = new StringBuilder();

  1157                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1158                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1159                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1160                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1161                     sb.append("  mn   : ").append(mn).append("\n");

  1162                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1163                     throw new IOException(sb.toString());

  1164                     /*

  1165                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1166                     String type = jc.StringValue(nameAndType.cpx2);

  1167                     String object = accessClass(mcn) + "(false)";

  1168                     if (mn.startsWith("cons_")) {

  1169                         object += ".constructor";

  1170                     }

  1171                     append("var metHan = ");

  1172                     append(accessStaticMethod(object, mn, mi));

  1173                     append('(');

  1174                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1175                     append(lookup);

  1176                     append(", '").append(mi[1]).append("', ");

  1177                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1178                     append(methodType).append("'").append(type).append("', null)");

  1179 //                    if (numArguments > 0) {

  1180 //                        append(vars[0]);

  1181 //                        for (int j = 1; j < numArguments; ++j) {

  1182 //                            append(", ");

  1183 //                            append(vars[j]);

  1184 //                        }

  1185 //                    }

  1186                     append(");");

  1187                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1188                     i += 4;

  1189                     break;

  1190                     */

  1191                 }

  1192                 case opc_new: {

  1193                     int indx = readUShortArg(byteCodes, i);

  1194                     String ci = jc.getClassName(indx);

  1195                     emit(smapper, this, "var @1 = new @2;",

  1196                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1197                     addReference(ci);

  1198                     i += 2;

  1199                     break;

  1200                 }

  1201                 case opc_newarray:

  1202                     int atype = readUByte(byteCodes, ++i);

  1203                     generateNewArray(atype, smapper);

  1204                     break;

  1205                 case opc_anewarray: {

  1206                     int type = readUShortArg(byteCodes, i);

  1207                     i += 2;

  1208                     generateANewArray(type, smapper);

  1209                     break;

  1210                 }

  1211                 case opc_multianewarray: {

  1212                     int type = readUShortArg(byteCodes, i);

  1213                     i += 2;

  1214                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1215                     break;

  1216                 }

  1217                 case opc_arraylength:

  1218                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1219                     break;

  1220                 case opc_lastore:

  1221                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1222                          smapper.popL(), smapper.popI(), smapper.popA());

  1223                     break;

  1224                 case opc_fastore:

  1225                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1226                          smapper.popF(), smapper.popI(), smapper.popA());

  1227                     break;

  1228                 case opc_dastore:

  1229                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1230                          smapper.popD(), smapper.popI(), smapper.popA());

  1231                     break;

  1232                 case opc_aastore:

  1233                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1234                          smapper.popA(), smapper.popI(), smapper.popA());

  1235                     break;

  1236                 case opc_iastore:

  1237                 case opc_bastore:

  1238                 case opc_castore:

  1239                 case opc_sastore:

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

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

  1242                     break;

  1243                 case opc_laload:

  1244                     smapper.replace(this, VarType.LONG, "(@2[@1] || Array.at(@2, @1))",

  1245                          smapper.popI(), smapper.getA(0));

  1246                     break;

  1247                 case opc_faload:

  1248                     smapper.replace(this, VarType.FLOAT, "(@2[@1] || Array.at(@2, @1))",

  1249                          smapper.popI(), smapper.getA(0));

  1250                     break;

  1251                 case opc_daload:

  1252                     smapper.replace(this, VarType.DOUBLE, "(@2[@1] || Array.at(@2, @1))",

  1253                          smapper.popI(), smapper.getA(0));

  1254                     break;

  1255                 case opc_aaload:

  1256                     smapper.replace(this, VarType.REFERENCE, "(@2[@1] || Array.at(@2, @1))",

  1257                          smapper.popI(), smapper.getA(0));

  1258                     break;

  1259                 case opc_iaload:

  1260                 case opc_baload:

  1261                 case opc_caload:

  1262                 case opc_saload:

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

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

  1265                     break;

  1266                 case opc_pop:

  1267                 case opc_pop2:

  1268                     smapper.pop(1);

  1269                     debug("/* pop */");

  1270                     break;

  1271                 case opc_dup: {

  1272                     final Variable v = smapper.get(0);

  1273                     if (smapper.isDirty()) {

  1274                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1275                     } else {

  1276                         smapper.assign(this, v.getType(), v);

  1277                     }

  1278                     break;

  1279                 }

  1280                 case opc_dup2: {

  1281                     final Variable vi1 = smapper.get(0);

  1283                     if (vi1.isCategory2()) {

  1284                         emit(smapper, this, "var @1 = @2;",

  1285                              smapper.pushT(vi1.getType()), vi1);

  1286                     } else {

  1287                         final Variable vi2 = smapper.get(1);

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

  1289                              smapper.pushT(vi2.getType()), vi2,

  1290                              smapper.pushT(vi1.getType()), vi1);

  1291                     }

  1292                     break;

  1293                 }

  1294                 case opc_dup_x1: {

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

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

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

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

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

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

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

  1303                     break;

  1304                 }

  1305                 case opc_dup2_x1: {

  1306                     final Variable vi1 = smapper.pop(this);

  1307                     final Variable vi2 = smapper.pop(this);

  1309                     if (vi1.isCategory2()) {

  1310                         final Variable vo3 = smapper.pushT(vi1.getType());

  1311                         final Variable vo2 = smapper.pushT(vi2.getType());

  1312                         final Variable vo1 = smapper.pushT(vi1.getType());

  1314                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1315                              vo1, vi1, vo2, vi2, vo3, vo1);

  1316                     } else {

  1317                         final Variable vi3 = smapper.pop(this);

  1318                         final Variable vo5 = smapper.pushT(vi2.getType());

  1319                         final Variable vo4 = smapper.pushT(vi1.getType());

  1320                         final Variable vo3 = smapper.pushT(vi3.getType());

  1321                         final Variable vo2 = smapper.pushT(vi2.getType());

  1322                         final Variable vo1 = smapper.pushT(vi1.getType());

  1324                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1325                              vo1, vi1, vo2, vi2, vo3, vi3);

  1326                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1327                              vo4, vo1, vo5, vo2);

  1328                     }

  1329                     break;

  1330                 }

  1331                 case opc_dup_x2: {

  1332                     final Variable vi1 = smapper.pop(this);

  1333                     final Variable vi2 = smapper.pop(this);

  1335                     if (vi2.isCategory2()) {

  1336                         final Variable vo3 = smapper.pushT(vi1.getType());

  1337                         final Variable vo2 = smapper.pushT(vi2.getType());

  1338                         final Variable vo1 = smapper.pushT(vi1.getType());

  1340                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1341                              vo1, vi1, vo2, vi2, vo3, vo1);

  1342                     } else {

  1343                         final Variable vi3 = smapper.pop(this);

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

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

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

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

  1349                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1350                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1351                     }

  1352                     break;

  1353                 }

  1354                 case opc_dup2_x2: {

  1355                     final Variable vi1 = smapper.pop(this);

  1356                     final Variable vi2 = smapper.pop(this);

  1358                     if (vi1.isCategory2()) {

  1359                         if (vi2.isCategory2()) {

  1360                             final Variable vo3 = smapper.pushT(vi1.getType());

  1361                             final Variable vo2 = smapper.pushT(vi2.getType());

  1362                             final Variable vo1 = smapper.pushT(vi1.getType());

  1364                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1365                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1366                         } else {

  1367                             final Variable vi3 = smapper.pop(this);

  1368                             final Variable vo4 = smapper.pushT(vi1.getType());

  1369                             final Variable vo3 = smapper.pushT(vi3.getType());

  1370                             final Variable vo2 = smapper.pushT(vi2.getType());

  1371                             final Variable vo1 = smapper.pushT(vi1.getType());

  1373                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1374                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1375                         }

  1376                     } else {

  1377                         final Variable vi3 = smapper.pop(this);

  1379                         if (vi3.isCategory2()) {

  1380                             final Variable vo5 = smapper.pushT(vi2.getType());

  1381                             final Variable vo4 = smapper.pushT(vi1.getType());

  1382                             final Variable vo3 = smapper.pushT(vi3.getType());

  1383                             final Variable vo2 = smapper.pushT(vi2.getType());

  1384                             final Variable vo1 = smapper.pushT(vi1.getType());

  1386                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1387                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1388                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1389                                  vo4, vo1, vo5, vo2);

  1390                         } else {

  1391                             final Variable vi4 = smapper.pop(this);

  1392                             final Variable vo6 = smapper.pushT(vi2.getType());

  1393                             final Variable vo5 = smapper.pushT(vi1.getType());

  1394                             final Variable vo4 = smapper.pushT(vi4.getType());

  1395                             final Variable vo3 = smapper.pushT(vi3.getType());

  1396                             final Variable vo2 = smapper.pushT(vi2.getType());

  1397                             final Variable vo1 = smapper.pushT(vi1.getType());

  1399                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1400                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1401                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1402                                  vo5, vo1, vo6, vo2);

  1403                         }

  1404                     }

  1405                     break;

  1406                 }

  1407                 case opc_swap: {

  1408                     final Variable vi1 = smapper.get(0);

  1409                     final Variable vi2 = smapper.get(1);

  1411                     if (vi1.getType() == vi2.getType()) {

  1412                         final Variable tmp = smapper.pushT(vi1.getType());

  1414                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1415                              tmp, vi1, vi2);

  1416                         smapper.pop(1);

  1417                     } else {

  1418                         smapper.pop(2);

  1419                         smapper.pushT(vi1.getType());

  1420                         smapper.pushT(vi2.getType());

  1421                     }

  1422                     break;

  1423                 }

  1424                 case opc_bipush:

  1425                     smapper.assign(this, VarType.INTEGER,

  1426                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1427                     break;

  1428                 case opc_sipush:

  1429                     smapper.assign(this, VarType.INTEGER,

  1430                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1431                     );

  1432                     i += 2;

  1433                     break;

  1434                 case opc_getfield: {

  1435                     int indx = readUShortArg(byteCodes, i);

  1436                     String[] fi = jc.getFieldInfoName(indx);

  1437                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1438                     FieldData field = findField(fi);

  1439                     if (field == null) {

  1440                         final String mangleClass = mangleClassName(fi[0]);

  1441                         final String mangleClassAccess = accessClassFalse(mangleClass);

  1442                         smapper.replace(this, type, "@2.call(@1)",

  1443                              smapper.getA(0),

  1444                              accessField(mangleClassAccess, null, fi)

  1445                         );

  1446                     } else {

  1447                         final String fieldOwner = mangleClassName(field.cls.getClassName());

  1448                         smapper.replace(this, type, "@1.@2",

  1449                              smapper.getA(0),

  1450                              accessField(fieldOwner, field, fi)

  1451                         );

  1452                     }

  1453                     i += 2;

  1454                     addReference(fi[0]);

  1455                     break;

  1456                 }

  1457                 case opc_putfield: {

  1458                     int indx = readUShortArg(byteCodes, i);

  1459                     String[] fi = jc.getFieldInfoName(indx);

  1460                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1461                     FieldData field = findField(fi);

  1462                     if (field == null) {

  1463                         final String mangleClass = mangleClassName(fi[0]);

  1464                         final String mangleClassAccess = accessClassFalse(mangleClass);

  1465                         emit(smapper, this, "@3.call(@2, @1);",

  1466                              smapper.popT(type),

  1467                              smapper.popA(),

  1468                              accessField(mangleClassAccess, null, fi)

  1469                         );

  1470                     } else {

  1471                         final String fieldOwner = mangleClassName(field.cls.getClassName());

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

  1473                              smapper.popT(type),

  1474                              smapper.popA(),

  1475                              accessField(fieldOwner, field, fi)

  1476                         );

  1477                     }

  1478                     i += 2;

  1479                     addReference(fi[0]);

  1480                     break;

  1481                 }

  1482                 case opc_getstatic: {

  1483                     int indx = readUShortArg(byteCodes, i);

  1484                     String[] fi = jc.getFieldInfoName(indx);

  1485                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1486                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1487                     FieldData field = findField(fi);

  1488                     String af = accessField(ac, field, fi);

  1489                     smapper.assign(this, type, af + "()");

  1490                     i += 2;

  1491                     addReference(fi[0]);

  1492                     break;

  1493                 }

  1494                 case opc_putstatic: {

  1495                     int indx = readUShortArg(byteCodes, i);

  1496                     String[] fi = jc.getFieldInfoName(indx);

  1497                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1498                     emit(smapper, this, "@1._@2(@3);",

  1499                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1500                          smapper.popT(type));

  1501                     i += 2;

  1502                     addReference(fi[0]);

  1503                     break;

  1504                 }

  1505                 case opc_checkcast: {

  1506                     int indx = readUShortArg(byteCodes, i);

  1507                     generateCheckcast(indx, smapper);

  1508                     i += 2;

  1509                     break;

  1510                 }

  1511                 case opc_instanceof: {

  1512                     int indx = readUShortArg(byteCodes, i);

  1513                     generateInstanceOf(indx, smapper);

  1514                     i += 2;

  1515                     break;

  1516                 }

  1517                 case opc_athrow: {

  1518                     final CharSequence v = smapper.popA();

  1519                     smapper.clear();

  1521                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1522                          smapper.pushA(), v);

  1523                     break;

  1524                 }

  1526                 case opc_monitorenter: {

  1527                     debug("/* monitor enter */");

  1528                     smapper.popA();

  1529                     break;

  1530                 }

  1532                 case opc_monitorexit: {

  1533                     debug("/* monitor exit */");

  1534                     smapper.popA();

  1535                     break;

  1536                 }

  1538                 case opc_wide:

  1539                     wide = true;

  1540                     break;

  1542                 default: {

  1543                     wide = false;

  1544                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1545                          Integer.toString(c));

  1546                 }

  1547             }

  1548             if (debug(" //")) {

  1549                 generateByteCodeComment(prev, i, byteCodes);

  1550             }

  1551             if (outChanged) {

  1552                 append("\n");

  1553             }

  1554         }

  1555         if (previousTrap != null) {

  1556             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1557         }

  1558         if (didBranches) {

  1559             append("\n    }\n");

  1560         }

  1561         while (openBraces-- > 0) {

  1562             append('}');

  1563         }

  1564         if (defineProp) {

  1565             append("\n}});");

  1566         } else {

  1567             append("\n};");

  1568         }

  1569         return defineProp;

  1570     }

  1572     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1573         int i, final CharSequence v2, final CharSequence v1,

  1574         final String test, int topMostLabel

  1575     ) throws IOException {

  1576         mapper.flush(this);

  1577         int indx = i + readShortArg(byteCodes, i);

  1578         append("if ((").append(v1)

  1579            .append(") ").append(test).append(" (")

  1580            .append(v2).append(")) ");

  1581         goTo(this, i, indx, topMostLabel);

  1582         return i + 2;

  1583     }

  1585     private int readInt4(byte[] byteCodes, int offset) {

  1586         final int d = byteCodes[offset + 0] << 24;

  1587         final int c = byteCodes[offset + 1] << 16;

  1588         final int b = byteCodes[offset + 2] << 8;

  1589         final int a = byteCodes[offset + 3];

  1590         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1591     }

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

  1593         return byteCodes[offset] & 0xff;

  1594     }

  1596     private static int readUShort(byte[] byteCodes, int offset) {

  1597         return ((byteCodes[offset] & 0xff) << 8)

  1598                     | (byteCodes[offset + 1] & 0xff);

  1599     }

  1600     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1601         return readUShort(byteCodes, offsetInstruction + 1);

  1602     }

  1604     private static int readShort(byte[] byteCodes, int offset) {

  1605         int signed = byteCodes[offset];

  1606         byte b0 = (byte)signed;

  1607         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1608     }

  1609     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1610         return readShort(byteCodes, offsetInstruction + 1);

  1611     }

  1613     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1614         int i = 0;

  1615         Boolean count = null;

  1616         boolean array = false;

  1617         sig.append("__");

  1618         int firstPos = sig.length();

  1619         while (i < descriptor.length()) {

  1620             char ch = descriptor.charAt(i++);

  1621             switch (ch) {

  1622                 case '(':

  1623                     count = true;

  1624                     continue;

  1625                 case ')':

  1626                     count = false;

  1627                     continue;

  1628                 case 'B':

  1629                 case 'C':

  1630                 case 'D':

  1631                 case 'F':

  1632                 case 'I':

  1633                 case 'J':

  1634                 case 'S':

  1635                 case 'Z':

  1636                     if (count) {

  1637                         if (array) {

  1638                             sig.append("_3");

  1639                         }

  1640                         sig.append(ch);

  1641                         if (ch == 'J' || ch == 'D') {

  1642                             cnt.append('1');

  1643                         } else {

  1644                             cnt.append('0');

  1645                         }

  1646                     } else {

  1647                         sig.insert(firstPos, ch);

  1648                         if (array) {

  1649                             returnType[0] = '[';

  1650                             sig.insert(firstPos, "_3");

  1651                         } else {

  1652                             returnType[0] = ch;

  1653                         }

  1654                     }

  1655                     array = false;

  1656                     continue;

  1657                 case 'V':

  1658                     assert !count;

  1659                     returnType[0] = 'V';

  1660                     sig.insert(firstPos, 'V');

  1661                     continue;

  1662                 case 'L':

  1663                     int next = descriptor.indexOf(';', i);

  1664                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1665                     if (count) {

  1666                         if (array) {

  1667                             sig.append("_3");

  1668                         }

  1669                         sig.append(realSig);

  1670                         cnt.append('0');

  1671                     } else {

  1672                         sig.insert(firstPos, realSig);

  1673                         if (array) {

  1674                             sig.insert(firstPos, "_3");

  1675                         }

  1676                         returnType[0] = 'L';

  1677                     }

  1678                     i = next + 1;

  1679                     array = false;

  1680                     continue;

  1681                 case '[':

  1682                     array = true;

  1683                     continue;

  1684                 default:

  1685                     throw new IllegalStateException("Invalid char: " + ch);

  1686             }

  1687         }

  1688     }

  1690     static String mangleSig(String sig) {

  1691         return mangleSig(sig, 0, sig.length());

  1692     }

  1694     private static String mangleMethodName(String name) {

  1695         StringBuilder sb = new StringBuilder(name.length() * 2);

  1696         int last = name.length();

  1697         for (int i = 0; i < last; i++) {

  1698             final char ch = name.charAt(i);

  1699             switch (ch) {

  1700                 case '_': sb.append("_1"); break;

  1701                 default: sb.append(ch); break;

  1702             }

  1703         }

  1704         return sb.toString();

  1705     }

  1706     private static String mangleSig(String txt, int first, int last) {

  1707         StringBuilder sb = new StringBuilder((last - first) * 2);

  1708         for (int i = first; i < last; i++) {

  1709             final char ch = txt.charAt(i);

  1710             switch (ch) {

  1711                 case '/': sb.append('_'); break;

  1712                 case '_': sb.append("_1"); break;

  1713                 case ';': sb.append("_2"); break;

  1714                 case '[': sb.append("_3"); break;

  1715                 default:

  1716                     if (Character.isJavaIdentifierPart(ch)) {

  1717                         sb.append(ch);

  1718                     } else {

  1719                         sb.append("_0");

  1720                         String hex = Integer.toHexString(ch).toLowerCase();

  1721                         for (int m = hex.length(); m < 4; m++) {

  1722                             sb.append("0");

  1723                         }

  1724                         sb.append(hex);

  1725                     }

  1726                 break;

  1727             }

  1728         }

  1729         return sb.toString();

  1730     }

  1732     private static String mangleClassName(String name) {

  1733         return mangleSig(name);

  1734     }

  1736     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1737         StringBuilder name = new StringBuilder();

  1738         if ("<init>".equals(m.getName())) { // NOI18N

  1739             name.append("cons"); // NOI18N

  1740         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1741             name.append("class"); // NOI18N

  1742         } else {

  1743             name.append(mangleMethodName(m.getName()));

  1744         }

  1746         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1747         return name.toString();

  1748     }

  1750     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1751         StringBuilder name = new StringBuilder();

  1752         String descr = mi[2];//mi.getDescriptor();

  1753         String nm= mi[1];

  1754         if ("<init>".equals(nm)) { // NOI18N

  1755             name.append("cons"); // NOI18N

  1756         } else {

  1757             name.append(mangleMethodName(nm));

  1758         }

  1759         countArgs(descr, returnType, name, cnt);

  1760         return name.toString();

  1761     }

  1763     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1764     throws IOException {

  1765         int methodIndex = readUShortArg(byteCodes, i);

  1766         String[] mi = jc.getFieldInfoName(methodIndex);

  1767         char[] returnType = { 'V' };

  1768         StringBuilder cnt = new StringBuilder();

  1769         String mn = findMethodName(mi, cnt, returnType);

  1771         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1772         final CharSequence[] vars = new CharSequence[numArguments];

  1774         for (int j = numArguments - 1; j >= 0; --j) {

  1775             vars[j] = mapper.popValue();

  1776         }

  1778         if ((

  1779             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1780             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1781         ) || (

  1782             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1783             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1784         )) {

  1785             if (vars[1] instanceof String) {

  1786                 String field = vars[1].toString();

  1787                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1788                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1789                 }

  1790             }

  1791         }

  1792         if (

  1793             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1794             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1795         ) {

  1796             if (vars[1] instanceof String) {

  1797                 String field = vars[2].toString();

  1798                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1799                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1800                 }

  1801             }

  1802         }

  1804         if (returnType[0] != 'V') {

  1805             mapper.flush(this);

  1806             append("var ")

  1807                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1808                .append(" = ");

  1809         }

  1811         final String in = mi[0];

  1812         String mcn;

  1813         if (callbacks && (

  1814             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1815             in.equals("org/netbeans/html/boot/spi/Fn")

  1816         )) {

  1817             mcn = "java_lang_Class";

  1818         } else {

  1819             mcn = mangleClassName(in);

  1820         }

  1821         String object = accessClassFalse(mcn);

  1822         if (mn.startsWith("cons_")) {

  1823             object += ".constructor";

  1824         }

  1825         append(accessStaticMethod(object, mn, mi));

  1826         if (isStatic) {

  1827             append('(');

  1828         } else {

  1829             append(".call(");

  1830         }

  1831         if (numArguments > 0) {

  1832             append(vars[0]);

  1833             for (int j = 1; j < numArguments; ++j) {

  1834                 append(", ");

  1835                 append(vars[j]);

  1836             }

  1837         }

  1838         append(");");

  1839         i += 2;

  1840         addReference(in);

  1841         return i;

  1842     }

  1843     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1844     throws IOException {

  1845         int methodIndex = readUShortArg(byteCodes, i);

  1846         String[] mi = jc.getFieldInfoName(methodIndex);

  1847         char[] returnType = { 'V' };

  1848         StringBuilder cnt = new StringBuilder();

  1849         String mn = findMethodName(mi, cnt, returnType);

  1851         final int numArguments = cnt.length() + 1;

  1852         final CharSequence[] vars =  new CharSequence[numArguments];

  1854         for (int j = numArguments - 1; j >= 0; --j) {

  1855             vars[j] = mapper.popValue();

  1856         }

  1858         if (returnType[0] != 'V') {

  1859             mapper.flush(this);

  1860             append("var ")

  1861                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1862                .append(" = ");

  1863         }

  1865         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1866         String sep = "";

  1867         for (int j = 1; j < numArguments; ++j) {

  1868             append(sep);

  1869             append(vars[j]);

  1870             sep = ", ";

  1871         }

  1872         append(");");

  1873         i += 2;

  1874         return i;

  1875     }

  1877     private void addReference(String cn) throws IOException {

  1878         if (requireReference(cn)) {

  1879             debug(" /* needs " + cn + " */");

  1880         }

  1881     }

  1883     private void outType(String d, StringBuilder out) {

  1884         int arr = 0;

  1885         while (d.charAt(0) == '[') {

  1886             out.append('A');

  1887             d = d.substring(1);

  1888         }

  1889         if (d.charAt(0) == 'L') {

  1890             assert d.charAt(d.length() - 1) == ';';

  1891             out.append(mangleClassName(d).substring(0, d.length() - 1));

  1892         } else {

  1893             out.append(d);

  1894         }

  1895     }

  1897     private String encodeConstant(int entryIndex) throws IOException {

  1898         String[] classRef = { null };

  1899         String s = jc.stringValue(entryIndex, classRef);

  1900         if (classRef[0] != null) {

  1901             if (classRef[0].startsWith("[")) {

  1902                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1903             } else {

  1904                 addReference(classRef[0]);

  1905                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1906             }

  1907         }

  1908         return s;

  1909     }

  1911     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1912         byte[] arr = m.findAnnotationData(true);

  1913         if (arr == null) {

  1914             return null;

  1915         }

  1916         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1917         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1918         class P extends AnnotationParser {

  1919             public P() {

  1920                 super(false, true);

  1921             }

  1923             int cnt;

  1924             String[] args = new String[30];

  1925             String body;

  1926             boolean javacall;

  1927             boolean html4j;

  1929             @Override

  1930             protected void visitAttr(String type, String attr, String at, String value) {

  1931                 if (type.equals(jvmType)) {

  1932                     if ("body".equals(attr)) {

  1933                         body = value;

  1934                     } else if ("args".equals(attr)) {

  1935                         args[cnt++] = value;

  1936                     } else {

  1937                         throw new IllegalArgumentException(attr);

  1938                     }

  1939                 }

  1940                 if (type.equals(htmlType)) {

  1941                     html4j = true;

  1942                     if ("body".equals(attr)) {

  1943                         body = value;

  1944                     } else if ("args".equals(attr)) {

  1945                         args[cnt++] = value;

  1946                     } else if ("javacall".equals(attr)) {

  1947                         javacall = "1".equals(value);

  1948                     } else if ("wait4js".equals(attr)) {

  1949                         // ignore, we always invoke synchronously

  1950                     } else {

  1951                         throw new IllegalArgumentException(attr);

  1952                     }

  1953                 }

  1954             }

  1955         }

  1956         P p = new P();

  1957         p.parse(arr, jc);

  1958         if (p.body == null) {

  1959             return null;

  1960         }

  1961         StringBuilder cnt = new StringBuilder();

  1962         final String mn = findMethodName(m, cnt);

  1963         append("m = ").append(destObject).append(".").append(mn);

  1964         append(" = function(");

  1965         String space = "";

  1966         int index = 0;

  1967         StringBuilder toValue = new StringBuilder();

  1968         for (int i = 0; i < cnt.length(); i++) {

  1969             append(space);

  1970             space = outputArg(this, p.args, index);

  1971             if (p.html4j && space.length() > 0) {

  1972                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1973                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1974                     append(p.args[index]).append(");");

  1975             }

  1976             index++;

  1977         }

  1978         append(") {").append("\n");

  1979         append(toValue.toString());

  1980         if (p.javacall) {

  1981             int lastSlash = jc.getClassName().lastIndexOf('/');

  1982             final String pkg = jc.getClassName().substring(0, lastSlash);

  1983             append(mangleCallbacks(pkg, p.body));

  1984             requireReference(pkg + "/$JsCallbacks$");

  1985         } else {

  1986             append(p.body);

  1987         }

  1988         append("\n}\n");

  1989         return mn;

  1990     }

  1992     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1993         StringBuilder sb = new StringBuilder();

  1994         int pos = 0;

  1995         for (;;) {

  1996             int next = body.indexOf(".@", pos);

  1997             if (next == -1) {

  1998                 sb.append(body.substring(pos));

  1999                 body = sb.toString();

  2000                 break;

  2001             }

  2002             int ident = next;

  2003             while (ident > 0) {

  2004                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  2005                     ident++;

  2006                     break;

  2007                 }

  2008             }

  2009             String refId = body.substring(ident, next);

  2011             sb.append(body.substring(pos, ident));

  2013             int sigBeg = body.indexOf('(', next);

  2014             int sigEnd = body.indexOf(')', sigBeg);

  2015             int colon4 = body.indexOf("::", next);

  2016             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  2017                 throw new IllegalStateException("Malformed body " + body);

  2018             }

  2019             String fqn = body.substring(next + 2, colon4);

  2020             String method = body.substring(colon4 + 2, sigBeg);

  2021             String params = body.substring(sigBeg, sigEnd + 1);

  2023             int paramBeg = body.indexOf('(', sigEnd + 1);

  2025             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  2026             sb.append(mangleJsCallbacks(fqn, method, params, false));

  2027             sb.append("(").append(refId);

  2028             if (body.charAt(paramBeg + 1) != ')') {

  2029                 sb.append(",");

  2030             }

  2031             pos = paramBeg + 1;

  2032         }

  2033         sb = null;

  2034         pos = 0;

  2035         for (;;) {

  2036             int next = body.indexOf("@", pos);

  2037             if (next == -1) {

  2038                 if (sb == null) {

  2039                     return body;

  2040                 }

  2041                 sb.append(body.substring(pos));

  2042                 return sb;

  2043             }

  2044             if (sb == null) {

  2045                 sb = new StringBuilder();

  2046             }

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

  2050             int sigBeg = body.indexOf('(', next);

  2051             int sigEnd = body.indexOf(')', sigBeg);

  2052             int colon4 = body.indexOf("::", next);

  2053             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  2054                 throw new IllegalStateException("Malformed body " + body);

  2055             }

  2056             String fqn = body.substring(next + 1, colon4);

  2057             String method = body.substring(colon4 + 2, sigBeg);

  2058             String params = body.substring(sigBeg, sigEnd + 1);

  2060             int paramBeg = body.indexOf('(', sigEnd + 1);

  2062             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  2063             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2064             sb.append("(");

  2065             pos = paramBeg + 1;

  2066         }

  2067     }

  2069     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2070         if (params.startsWith("(")) {

  2071             params = params.substring(1);

  2072         }

  2073         if (params.endsWith(")")) {

  2074             params = params.substring(0, params.length() - 1);

  2075         }

  2076         StringBuilder sb = new StringBuilder();

  2077         final String fqnu = fqn.replace('.', '_');

  2078         final String rfqn = mangleClassName(fqnu);

  2079         final String rm = mangleMethodName(method);

  2080         final String srp;

  2081         {

  2082             StringBuilder pb = new StringBuilder();

  2083             int len = params.length();

  2084             int indx = 0;

  2085             while (indx < len) {

  2086                 char ch = params.charAt(indx);

  2087                 if (ch == '[' || ch == 'L') {

  2088                     int column = params.indexOf(';', indx) + 1;

  2089                     if (column > indx) {

  2090                         String real = params.substring(indx, column);

  2091                         if ("Ljava/lang/String;".equals(real)) {

  2092                             pb.append("Ljava/lang/String;");

  2093                             indx = column;

  2094                             continue;

  2095                         }

  2096                     }

  2097                     pb.append("Ljava/lang/Object;");

  2098                     indx = column;

  2099                 } else {

  2100                     pb.append(ch);

  2101                     indx++;

  2102                 }

  2103             }

  2104             srp = mangleSig(pb.toString());

  2105         }

  2106         final String rp = mangleSig(params);

  2107         final String mrp = mangleMethodName(rp);

  2108         sb.append(rfqn).append("$").append(rm).

  2109             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2110         if (!isStatic) {

  2111             sb.append('L').append(fqnu).append("_2");

  2112         }

  2113         sb.append(srp);

  2114         return sb.toString();

  2115     }

  2117     private static String className(ClassData jc) {

  2118         //return jc.getName().getInternalName().replace('/', '_');

  2119         return mangleClassName(jc.getClassName());

  2120     }

  2122     private static String[] findAnnotation(

  2123         byte[] arr, ClassData cd, final String className,

  2124         final String... attrNames

  2125     ) throws IOException {

  2126         if (arr == null) {

  2127             return null;

  2128         }

  2129         final String[] values = new String[attrNames.length];

  2130         final boolean[] found = { false };

  2131         final String jvmType = "L" + className.replace('.', '/') + ";";

  2132         AnnotationParser ap = new AnnotationParser(false, true) {

  2133             @Override

  2134             protected void visitAttr(String type, String attr, String at, String value) {

  2135                 if (type.equals(jvmType)) {

  2136                     found[0] = true;

  2137                     for (int i = 0; i < attrNames.length; i++) {

  2138                         if (attrNames[i].equals(attr)) {

  2139                             values[i] = value;

  2140                         }

  2141                     }

  2142                 }

  2143             }

  2145         };

  2146         ap.parse(arr, cd);

  2147         return found[0] ? values : null;

  2148     }

  2150     private CharSequence initField(FieldData v) {

  2151         final String is = v.getInternalSig();

  2152         if (is.length() == 1) {

  2153             switch (is.charAt(0)) {

  2154                 case 'S':

  2155                 case 'J':

  2156                 case 'B':

  2157                 case 'Z':

  2158                 case 'C':

  2159                 case 'I': return " = 0;";

  2160                 case 'F':

  2161                 case 'D': return " = 0.0;";

  2162                 default:

  2163                     throw new IllegalStateException(is);

  2164             }

  2165         }

  2166         return " = null;";

  2167     }

  2169     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2170         final String name = args[indx];

  2171         if (name == null) {

  2172             return "";

  2173         }

  2174         if (name.contains(",")) {

  2175             throw new IOException("Wrong parameter with ',': " + name);

  2176         }

  2177         out.append(name);

  2178         return ",";

  2179     }

  2181     final void emitNoFlush(

  2182         StackMapper sm,

  2183         final String format, final CharSequence... params

  2184     ) throws IOException {

  2185         emitImpl(this, format, params);

  2186     }

  2187     static final void emit(

  2188         StackMapper sm,

  2189         final Appendable out,

  2190         final String format, final CharSequence... params

  2191     ) throws IOException {

  2192         sm.flush(out);

  2193         emitImpl(out, format, params);

  2194     }

  2195     static void emitImpl(final Appendable out,

  2196                              final String format,

  2197                              final CharSequence... params) throws IOException {

  2198         final int length = format.length();

  2200         int processed = 0;

  2201         int paramOffset = format.indexOf('@');

  2202         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2203             final char paramChar = format.charAt(paramOffset + 1);

  2204             if ((paramChar >= '1') && (paramChar <= '9')) {

  2205                 final int paramIndex = paramChar - '0' - 1;

  2207                 out.append(format, processed, paramOffset);

  2208                 out.append(params[paramIndex]);

  2210                 ++paramOffset;

  2211                 processed = paramOffset + 1;

  2212             }

  2214             paramOffset = format.indexOf('@', paramOffset + 1);

  2215         }

  2217         out.append(format, processed, length);

  2218     }

  2220     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2221         append("} catch (e) {\n");

  2222         int finallyPC = -1;

  2223         for (TrapData e : traps) {

  2224             if (e == null) {

  2225                 break;

  2226             }

  2227             if (e.catch_cpx != 0) { //not finally

  2228                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2229                 addReference(classInternalName);

  2230                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2231                 append("if (e['$instOf_" + mangleClassName(classInternalName) + "']) {");

  2232                 append("var stA0 = e;");

  2233                 goTo(this, current, e.handler_pc, topMostLabel);

  2234                 append("}\n");

  2235             } else {

  2236                 finallyPC = e.handler_pc;

  2237             }

  2238         }

  2239         if (finallyPC == -1) {

  2240             append("throw e;");

  2241         } else {

  2242             append("var stA0 = e;");

  2243             goTo(this, current, finallyPC, topMostLabel);

  2244         }

  2245         append("\n}");

  2246     }

  2248     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2249         if (to < current) {

  2250             if (canBack < to) {

  2251                 out.append("{ gt = 0; continue X_" + to + "; }");

  2252             } else {

  2253                 out.append("{ gt = " + to + "; continue X_0; }");

  2254             }

  2255         } else {

  2256             out.append("{ gt = " + to + "; break IF; }");

  2257         }

  2258     }

  2260     private static void emitIf(

  2261         StackMapper sm,

  2262         Appendable out, String pattern,

  2263         CharSequence param,

  2264         int current, int to, int canBack

  2265     ) throws IOException {

  2266         sm.flush(out);

  2267         emitImpl(out, pattern, param);

  2268         goTo(out, current, to, canBack);

  2269     }

  2271     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2272         String jvmType;

  2273         switch (atype) {

  2274             case 4: jvmType = "[Z"; break;

  2275             case 5: jvmType = "[C"; break;

  2276             case 6: jvmType = "[F"; break;

  2277             case 7: jvmType = "[D"; break;

  2278             case 8: jvmType = "[B"; break;

  2279             case 9: jvmType = "[S"; break;

  2280             case 10: jvmType = "[I"; break;

  2281             case 11: jvmType = "[J"; break;

  2282             default: throw new IllegalStateException("Array type: " + atype);

  2283         }

  2284         emit(smapper, this,

  2285             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2286              smapper.popI(), smapper.pushA(), jvmType);

  2287     }

  2289     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2290         String typeName = jc.getClassName(type);

  2291         String ref = "null";

  2292         if (typeName.startsWith("[")) {

  2293             typeName = "'[" + typeName + "'";

  2294         } else {

  2295             ref = "vm." + mangleClassName(typeName);

  2296             typeName = "'[L" + typeName + ";'";

  2297         }

  2298         emit(smapper, this,

  2299             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2300              smapper.popI(), smapper.pushA(), typeName, ref);

  2301     }

  2303     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2304         String typeName = jc.getClassName(type);

  2305         int dim = readUByte(byteCodes, ++i);

  2306         StringBuilder dims = new StringBuilder();

  2307         dims.append('[');

  2308         for (int d = 0; d < dim; d++) {

  2309             if (d != 0) {

  2310                 dims.insert(1, ",");

  2311             }

  2312             dims.insert(1, smapper.popI());

  2313         }

  2314         dims.append(']');

  2315         String fn = "null";

  2316         if (typeName.charAt(dim) == 'L') {

  2317             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2318         }

  2319         emit(smapper, this,

  2320             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2321              dims.toString(), smapper.pushA(), typeName, fn

  2322         );

  2323         return i;

  2324     }

  2326     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2327         int table = i / 4 * 4 + 4;

  2328         int dflt = i + readInt4(byteCodes, table);

  2329         table += 4;

  2330         int low = readInt4(byteCodes, table);

  2331         table += 4;

  2332         int high = readInt4(byteCodes, table);

  2333         table += 4;

  2334         final CharSequence swVar = smapper.popValue();

  2335         smapper.flush(this);

  2336         append("switch (").append(swVar).append(") {\n");

  2337         while (low <= high) {

  2338             int offset = i + readInt4(byteCodes, table);

  2339             table += 4;

  2340             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2341             low++;

  2342         }

  2343         append("  default: ");

  2344         goTo(this, i, dflt, topMostLabel);

  2345         append("\n}");

  2346         i = table - 1;

  2347         return i;

  2348     }

  2350     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2351         int table = i / 4 * 4 + 4;

  2352         int dflt = i + readInt4(byteCodes, table);

  2353         table += 4;

  2354         int n = readInt4(byteCodes, table);

  2355         table += 4;

  2356         final CharSequence swVar = smapper.popValue();

  2357         smapper.flush(this);

  2358         append("switch (").append(swVar).append(") {\n");

  2359         while (n-- > 0) {

  2360             int cnstnt = readInt4(byteCodes, table);

  2361             table += 4;

  2362             int offset = i + readInt4(byteCodes, table);

  2363             table += 4;

  2364             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2365         }

  2366         append("  default: ");

  2367         goTo(this, i, dflt, topMostLabel);

  2368         append("\n}");

  2369         i = table - 1;

  2370         return i;

  2371     }

  2373     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2374         String type = jc.getClassName(indx);

  2375         if (!type.startsWith("[")) {

  2376             emit(smapper, this,

  2377                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2378                  smapper.popA(), smapper.pushI(),

  2379                  mangleClassName(type));

  2380         } else {

  2381             int cnt = 0;

  2382             while (type.charAt(cnt) == '[') {

  2383                 cnt++;

  2384             }

  2385             if (type.charAt(cnt) == 'L') {

  2386                 String component = type.substring(cnt + 1, type.length() - 1);

  2387                 requireReference(component);

  2388                 type = "vm." + mangleClassName(component);

  2389                 emit(smapper, this,

  2390                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2391                     smapper.popA(), smapper.pushI(),

  2392                     type, "" + cnt

  2393                 );

  2394             } else {

  2395                 emit(smapper, this,

  2396                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2397                     smapper.popA(), smapper.pushI(), type

  2398                 );

  2399             }

  2400         }

  2401     }

  2403     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2404         String type = jc.getClassName(indx);

  2405         if (!type.startsWith("[")) {

  2406             emitNoFlush(smapper,

  2407                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2408                  smapper.getT(0, VarType.REFERENCE, false), mangleClassName(type));

  2409         } else {

  2410             int cnt = 0;

  2411             while (type.charAt(cnt) == '[') {

  2412                 cnt++;

  2413             }

  2414             if (type.charAt(cnt) == 'L') {

  2415                 String component = type.substring(cnt + 1, type.length() - 1);

  2416                 requireReference(component);

  2417                 type = "vm." + mangleClassName(component);

  2418                 emitNoFlush(smapper,

  2419                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2420                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2421                 );

  2422             } else {

  2423                 emitNoFlush(smapper,

  2424                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2425                      smapper.getT(0, VarType.REFERENCE, false), type

  2426                 );

  2427             }

  2428         }

  2429     }

  2431     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2432         for (int j = prev; j <= i; j++) {

  2433             append(" ");

  2434             final int cc = readUByte(byteCodes, j);

  2435             append(Integer.toString(cc));

  2436         }

  2437     }

  2439     @JavaScriptBody(args = "msg", body = "")

  2440     private static void println(String msg) {

  2441         System.err.println(msg);

  2442     }

  2444     private class GenerateAnno extends AnnotationParser {

  2445         public GenerateAnno(boolean textual, boolean iterateArray) {

  2446             super(textual, iterateArray);

  2447         }

  2448         int[] cnt = new int[32];

  2449         int depth;

  2451         @Override

  2452         protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2453             final String slashType = attrType.substring(1, attrType.length() - 1);

  2454             requireReference(slashType);

  2456             if (cnt[depth]++ > 0) {

  2457                 append(",");

  2458             }

  2459             if (top) {

  2460                 append('"').append(attrType).append("\" : ");

  2461             }

  2462             append("{\n");

  2463             cnt[++depth] = 0;

  2464         }

  2466         @Override

  2467         protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2468             append("\n}\n");

  2469             depth--;

  2470         }

  2472         @Override

  2473         protected void visitValueStart(String attrName, char type) throws IOException {

  2474             if (cnt[depth]++ > 0) {

  2475                 append(",\n");

  2476             }

  2477             cnt[++depth] = 0;

  2478             if (attrName != null) {

  2479                 append('"').append(attrName).append("\" : ");

  2480             }

  2481             if (type == '[') {

  2482                 append("[");

  2483             }

  2484         }

  2486         @Override

  2487         protected void visitValueEnd(String attrName, char type) throws IOException {

  2488             if (type == '[') {

  2489                 append("]");

  2490             }

  2491             depth--;

  2492         }

  2494         @Override

  2495         protected void visitAttr(String type, String attr, String attrType, String value)

  2496             throws IOException {

  2497             if (attr == null && value == null) {

  2498                 return;

  2499             }

  2500             append(value);

  2501         }

  2503         @Override

  2504         protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2505             throws IOException {

  2506             final String slashType = attrType.substring(1, attrType.length() - 1);

  2507             requireReference(slashType);

  2509             final String cn = mangleClassName(slashType);

  2510             append(accessClassFalse(cn))

  2511                 .append("['valueOf__L").

  2512                 append(cn).

  2513                 append("_2Ljava_lang_String_2']('").

  2514                 append(value).

  2515                 append("')");

  2516         }

  2518         @Override

  2519         protected void visitClassAttr(String annoType, String attr, String className) throws IOException {

  2520             final String slashType = className.substring(1, className.length() - 1);

  2521             requireReference(slashType);

  2523             final String cn = mangleClassName(slashType);

  2524             append(accessClassFalse(cn)).append(".constructor.$class");

  2525         }

  2526     }

  2527 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Sat, 19 Mar 2016 10:31:13 +0100
changeset 1889	e1953d8b8338
parent 1878	126d266b2da9
child 1898	cf6d5d357696
permissions	-rw-r--r--