hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@cf6d5d357696

     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         int flags = jc.getAccessFlags();

   343         if (jc.hasEnclosingMethod()) {

   344             flags |= 0x10000;

   345         }

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

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

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

   349         if (classAnno != null) {

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

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

   352             ap.parse(classAnno, jc);

   353             append("\n    };");

   354         }

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

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

   357         }

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

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

   360         }

   361         classRefs.clear();

   363         if (jsResource != null) {

   364             requireResource(jsResource);

   365         }

   367         append("\n  }");

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

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

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

   371         append("\n    }");

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

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

   374             if (javaScriptOnly(onlyArr)) continue;

   375             if (!v.isStatic()) {

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

   377                     append(className).append('_').

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

   379             }

   380         }

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

   382         append("\n  }");

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

   384         append("\n};");

   386         declaredClass(jc, className);

   388 //        StringBuilder sb = new StringBuilder();

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

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

   391 //        }

   392         return "";

   393     }

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

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

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

   398             "name", "value"

   399         );

   400         if (only != null) {

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

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

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

   404             }

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

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

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

   408             }

   409             return true;

   410         }

   411         return false;

   412     }

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

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

   415         if (jsb != null) {

   416             return jsb;

   417         }

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

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

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

   421             if (defineProp) {

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

   423             } else {

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

   425             }

   426         }

   427         return mn;

   428     }

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

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

   432         if (jsb != null) {

   433             return jsb;

   434         }

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

   436         generateMethod(destObject, mn, m);

   437         return mn;

   438     }

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

   441             throws IOException {

   442         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   443         TrapDataIterator trap = m.getTrapDataIterator();

   444         final LocalsMapper lmapper =

   445                 new LocalsMapper(stackMapIterator.getArguments());

   447         boolean defineProp =

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

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

   451         if (defineProp) {

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

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

   454         } else {

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

   456         }

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

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

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

   461         if (byteCodes == null) {

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

   463             if (defaultAttr != null) {

   464                 append("  return ");

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

   466                 ap.parseDefault(defaultAttr, jc);

   467                 append(";\n");

   468             } else {

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

   470                    this

   471                    .append(jc.getClassName()).append('.')

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

   473                 }

   474             }

   475             if (defineProp) {

   476                 append("}});");

   477             } else {

   478                 append("};");

   479             }

   480             return defineProp;

   481         }

   483         final StackMapper smapper = new StackMapper();

   485         if (!m.isStatic()) {

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

   487         }

   489         int lastStackFrame;

   490         TrapData[] previousTrap = null;

   491         boolean wide = false;

   492         boolean didBranches;

   493         if (stackMapIterator.isEmpty()) {

   494             didBranches = false;

   495             lastStackFrame = 0;

   496         } else {

   497             didBranches = true;

   498             lastStackFrame = -1;

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

   500         }

   502         int openBraces = 0;

   503         int topMostLabel = 0;

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

   505             int prev = i;

   506             outChanged = false;

   507             stackMapIterator.advanceTo(i);

   508             boolean changeInCatch = trap.advanceTo(i);

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

   510                 if (previousTrap != null) {

   511                     generateCatch(previousTrap, i, topMostLabel);

   512                     previousTrap = null;

   513                 }

   514             }

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

   516                 smapper.flush(this);

   517                 if (i != 0) {

   518                     append("    }\n");

   519                 }

   520                 if (openBraces > 64) {

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

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

   523                     }

   524                     openBraces = 1;

   525                     topMostLabel = i;

   526                 }

   528                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   532                 openBraces++;

   533                 changeInCatch = true;

   534             } else {

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

   536             }

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

   538                 append("try {");

   539                 previousTrap = trap.current();

   540             }

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

   542             switch (c) {

   543                 case opc_aload_0:

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

   545                     break;

   546                 case opc_iload_0:

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

   548                     break;

   549                 case opc_lload_0:

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

   551                     break;

   552                 case opc_fload_0:

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

   554                     break;

   555                 case opc_dload_0:

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

   557                     break;

   558                 case opc_aload_1:

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

   560                     break;

   561                 case opc_iload_1:

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

   563                     break;

   564                 case opc_lload_1:

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

   566                     break;

   567                 case opc_fload_1:

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

   569                     break;

   570                 case opc_dload_1:

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

   572                     break;

   573                 case opc_aload_2:

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

   575                     break;

   576                 case opc_iload_2:

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

   578                     break;

   579                 case opc_lload_2:

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

   581                     break;

   582                 case opc_fload_2:

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

   584                     break;

   585                 case opc_dload_2:

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

   587                     break;

   588                 case opc_aload_3:

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

   590                     break;

   591                 case opc_iload_3:

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

   593                     break;

   594                 case opc_lload_3:

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

   596                     break;

   597                 case opc_fload_3:

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

   599                     break;

   600                 case opc_dload_3:

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

   602                     break;

   603                 case opc_iload: {

   604                     ++i;

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

   606                                           : readUByte(byteCodes, i);

   607                     wide = false;

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

   609                     break;

   610                 }

   611                 case opc_lload: {

   612                     ++i;

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

   614                                           : readUByte(byteCodes, i);

   615                     wide = false;

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

   617                     break;

   618                 }

   619                 case opc_fload: {

   620                     ++i;

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

   622                                           : readUByte(byteCodes, i);

   623                     wide = false;

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

   625                     break;

   626                 }

   627                 case opc_dload: {

   628                     ++i;

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

   630                                           : readUByte(byteCodes, i);

   631                     wide = false;

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

   633                     break;

   634                 }

   635                 case opc_aload: {

   636                     ++i;

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

   638                                           : readUByte(byteCodes, i);

   639                     wide = false;

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

   641                     break;

   642                 }

   643                 case opc_istore: {

   644                     ++i;

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

   646                                           : readUByte(byteCodes, i);

   647                     wide = false;

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

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

   650                     break;

   651                 }

   652                 case opc_lstore: {

   653                     ++i;

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

   655                                           : readUByte(byteCodes, i);

   656                     wide = false;

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

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

   659                     break;

   660                 }

   661                 case opc_fstore: {

   662                     ++i;

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

   664                                           : readUByte(byteCodes, i);

   665                     wide = false;

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

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

   668                     break;

   669                 }

   670                 case opc_dstore: {

   671                     ++i;

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

   673                                           : readUByte(byteCodes, i);

   674                     wide = false;

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

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

   677                     break;

   678                 }

   679                 case opc_astore: {

   680                     ++i;

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

   682                                           : readUByte(byteCodes, i);

   683                     wide = false;

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

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

   686                     break;

   687                 }

   688                 case opc_astore_0:

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

   690                     break;

   691                 case opc_istore_0:

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

   693                     break;

   694                 case opc_lstore_0:

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

   696                     break;

   697                 case opc_fstore_0:

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

   699                     break;

   700                 case opc_dstore_0:

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

   702                     break;

   703                 case opc_astore_1:

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

   705                     break;

   706                 case opc_istore_1:

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

   708                     break;

   709                 case opc_lstore_1:

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

   711                     break;

   712                 case opc_fstore_1:

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

   714                     break;

   715                 case opc_dstore_1:

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

   717                     break;

   718                 case opc_astore_2:

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

   720                     break;

   721                 case opc_istore_2:

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

   723                     break;

   724                 case opc_lstore_2:

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

   726                     break;

   727                 case opc_fstore_2:

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

   729                     break;

   730                 case opc_dstore_2:

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

   732                     break;

   733                 case opc_astore_3:

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

   735                     break;

   736                 case opc_istore_3:

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

   738                     break;

   739                 case opc_lstore_3:

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

   741                     break;

   742                 case opc_fstore_3:

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

   744                     break;

   745                 case opc_dstore_3:

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

   747                     break;

   748                 case opc_iadd:

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

   750                     break;

   751                 case opc_ladd:

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

   753                     break;

   754                 case opc_fadd:

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

   756                     break;

   757                 case opc_dadd:

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

   759                     break;

   760                 case opc_isub:

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

   762                     break;

   763                 case opc_lsub:

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

   765                     break;

   766                 case opc_fsub:

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

   768                     break;

   769                 case opc_dsub:

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

   771                     break;

   772                 case opc_imul:

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

   774                     break;

   775                 case opc_lmul:

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

   777                     break;

   778                 case opc_fmul:

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

   780                     break;

   781                 case opc_dmul:

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

   783                     break;

   784                 case opc_idiv:

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

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

   787                     break;

   788                 case opc_ldiv:

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

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

   791                     break;

   792                 case opc_fdiv:

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

   794                     break;

   795                 case opc_ddiv:

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

   797                     break;

   798                 case opc_irem:

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

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

   801                     break;

   802                 case opc_lrem:

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

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

   805                     break;

   806                 case opc_frem:

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

   808                     break;

   809                 case opc_drem:

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

   811                     break;

   812                 case opc_iand:

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

   814                     break;

   815                 case opc_land:

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

   817                     break;

   818                 case opc_ior:

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

   820                     break;

   821                 case opc_lor:

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

   823                     break;

   824                 case opc_ixor:

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

   826                     break;

   827                 case opc_lxor:

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

   829                     break;

   830                 case opc_ineg:

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

   832                     break;

   833                 case opc_lneg:

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

   835                     break;

   836                 case opc_fneg:

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

   838                     break;

   839                 case opc_dneg:

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

   841                     break;

   842                 case opc_ishl:

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

   844                     break;

   845                 case opc_lshl:

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

   847                     break;

   848                 case opc_ishr:

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

   850                     break;

   851                 case opc_lshr:

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

   853                     break;

   854                 case opc_iushr:

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

   856                     break;

   857                 case opc_lushr:

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

   859                     break;

   860                 case opc_iinc: {

   861                     ++i;

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

   863                                              : readUByte(byteCodes, i);

   864                     ++i;

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

   866                                             : byteCodes[i];

   867                     wide = false;

   868                     if (incrBy == 1) {

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

   870                     } else {

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

   872                              lmapper.getI(varIndx),

   873                              Integer.toString(incrBy));

   874                     }

   875                     break;

   876                 }

   877                 case opc_return:

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

   879                     break;

   880                 case opc_ireturn:

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

   882                     break;

   883                 case opc_lreturn:

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

   885                     break;

   886                 case opc_freturn:

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

   888                     break;

   889                 case opc_dreturn:

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

   891                     break;

   892                 case opc_areturn:

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

   894                     break;

   895                 case opc_i2l:

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

   897                     break;

   898                 case opc_i2f:

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

   900                     break;

   901                 case opc_i2d:

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

   903                     break;

   904                 case opc_l2i:

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

   906                     break;

   907                     // max int check?

   908                 case opc_l2f:

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

   910                     break;

   911                 case opc_l2d:

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

   913                     break;

   914                 case opc_f2d:

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

   916                          smapper.getF(0));

   917                     break;

   918                 case opc_d2f:

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

   920                          smapper.getD(0));

   921                     break;

   922                 case opc_f2i:

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

   924                          smapper.getF(0));

   925                     break;

   926                 case opc_f2l:

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

   928                          smapper.getF(0));

   929                     break;

   930                 case opc_d2i:

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

   932                          smapper.getD(0));

   933                     break;

   934                 case opc_d2l:

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

   936                     break;

   937                 case opc_i2b:

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

   939                     break;

   940                 case opc_i2c:

   941                 case opc_i2s:

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

   943                     break;

   944                 case opc_aconst_null:

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

   946                     break;

   947                 case opc_iconst_m1:

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

   949                     break;

   950                 case opc_iconst_0:

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

   952                     break;

   953                 case opc_dconst_0:

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

   955                     break;

   956                 case opc_lconst_0:

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

   958                     break;

   959                 case opc_fconst_0:

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

   961                     break;

   962                 case opc_iconst_1:

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

   964                     break;

   965                 case opc_lconst_1:

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

   967                     break;

   968                 case opc_fconst_1:

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

   970                     break;

   971                 case opc_dconst_1:

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

   973                     break;

   974                 case opc_iconst_2:

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

   976                     break;

   977                 case opc_fconst_2:

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

   979                     break;

   980                 case opc_iconst_3:

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

   982                     break;

   983                 case opc_iconst_4:

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

   985                     break;

   986                 case opc_iconst_5:

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

   988                     break;

   989                 case opc_ldc: {

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

   991                     String v = encodeConstant(indx);

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

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

   994                     break;

   995                 }

   996                 case opc_ldc_w:

   997                 case opc_ldc2_w: {

   998                     int indx = readUShortArg(byteCodes, i);

   999                     i += 2;

  1000                     String v = encodeConstant(indx);

  1001                     int type = VarType.fromConstantType(jc.getTag(indx));

  1002                     if (type == VarType.LONG) {

  1003                         final Long lv = new Long(v);

  1004                         final int low = (int)(lv.longValue() & 0xFFFFFFFF);

  1005                         final int hi = (int)(lv.longValue() >> 32);

  1006                         if (hi == 0) {

  1007                             smapper.assign(this, VarType.LONG, "0x" + Integer.toHexString(low));

  1008                         } else {

  1009                             smapper.assign(this, VarType.LONG,

  1010                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

  1011                                     Integer.toHexString(low) + ")"

  1012                             );

  1013                         }

  1014                     } else {

  1015                         smapper.assign(this, type, v);

  1016                     }

  1017                     break;

  1018                 }

  1019                 case opc_lcmp:

  1020                     smapper.replace(this, VarType.INTEGER, numbers.compare64(), smapper.popL(), smapper.getL(0));

  1021                     break;

  1022                 case opc_fcmpl:

  1023                 case opc_fcmpg:

  1024                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1025                          smapper.popF(), smapper.popF(), smapper.pushI());

  1026                     break;

  1027                 case opc_dcmpl:

  1028                 case opc_dcmpg:

  1029                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1030                          smapper.popD(), smapper.popD(), smapper.pushI());

  1031                     break;

  1032                 case opc_if_acmpeq:

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

  1034                                    "===", topMostLabel);

  1035                     break;

  1036                 case opc_if_acmpne:

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

  1038                                    "!==", topMostLabel);

  1039                     break;

  1040                 case opc_if_icmpeq:

  1041                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1042                                    "==", topMostLabel);

  1043                     break;

  1044                 case opc_ifeq: {

  1045                     int indx = i + readShortArg(byteCodes, i);

  1046                     emitIf(smapper, this, "if ((@1) == 0) ",

  1047                          smapper.popI(), i, indx, topMostLabel);

  1048                     i += 2;

  1049                     break;

  1050                 }

  1051                 case opc_ifne: {

  1052                     int indx = i + readShortArg(byteCodes, i);

  1053                     emitIf(smapper, this, "if ((@1) != 0) ",

  1054                          smapper.popI(), i, indx, topMostLabel);

  1055                     i += 2;

  1056                     break;

  1057                 }

  1058                 case opc_iflt: {

  1059                     int indx = i + readShortArg(byteCodes, i);

  1060                     emitIf(smapper, this, "if ((@1) < 0) ",

  1061                          smapper.popI(), i, indx, topMostLabel);

  1062                     i += 2;

  1063                     break;

  1064                 }

  1065                 case opc_ifle: {

  1066                     int indx = i + readShortArg(byteCodes, i);

  1067                     emitIf(smapper, this, "if ((@1) <= 0) ",

  1068                          smapper.popI(), i, indx, topMostLabel);

  1069                     i += 2;

  1070                     break;

  1071                 }

  1072                 case opc_ifgt: {

  1073                     int indx = i + readShortArg(byteCodes, i);

  1074                     emitIf(smapper, this, "if ((@1) > 0) ",

  1075                          smapper.popI(), i, indx, topMostLabel);

  1076                     i += 2;

  1077                     break;

  1078                 }

  1079                 case opc_ifge: {

  1080                     int indx = i + readShortArg(byteCodes, i);

  1081                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1082                          smapper.popI(), i, indx, topMostLabel);

  1083                     i += 2;

  1084                     break;

  1085                 }

  1086                 case opc_ifnonnull: {

  1087                     int indx = i + readShortArg(byteCodes, i);

  1088                     emitIf(smapper, this, "if ((@1) !== null) ",

  1089                          smapper.popA(), i, indx, topMostLabel);

  1090                     i += 2;

  1091                     break;

  1092                 }

  1093                 case opc_ifnull: {

  1094                     int indx = i + readShortArg(byteCodes, i);

  1095                     emitIf(smapper, this, "if ((@1) === null) ",

  1096                          smapper.popA(), i, indx, topMostLabel);

  1097                     i += 2;

  1098                     break;

  1099                 }

  1100                 case opc_if_icmpne:

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

  1102                                    "!=", topMostLabel);

  1103                     break;

  1104                 case opc_if_icmplt:

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

  1106                                    "<", topMostLabel);

  1107                     break;

  1108                 case opc_if_icmple:

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

  1110                                    "<=", topMostLabel);

  1111                     break;

  1112                 case opc_if_icmpgt:

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

  1114                                    ">", topMostLabel);

  1115                     break;

  1116                 case opc_if_icmpge:

  1117                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1118                                    ">=", topMostLabel);

  1119                     break;

  1120                 case opc_goto: {

  1121                     smapper.flush(this);

  1122                     int indx = i + readShortArg(byteCodes, i);

  1123                     goTo(this, i, indx, topMostLabel);

  1124                     i += 2;

  1125                     break;

  1126                 }

  1127                 case opc_lookupswitch: {

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

  1129                     break;

  1130                 }

  1131                 case opc_tableswitch: {

  1132                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1133                     break;

  1134                 }

  1135                 case opc_invokeinterface: {

  1136                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1137                     break;

  1138                 }

  1139                 case opc_invokevirtual:

  1140                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1141                     break;

  1142                 case opc_invokespecial:

  1143                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1144                     break;

  1145                 case opc_invokestatic:

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

  1147                     break;

  1148                 case opc_invokedynamic: {

  1149                     int indx = readUShortArg(byteCodes, i);

  1150                     println("invoke dynamic: " + indx);

  1151                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1152                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1153                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1154                     println("  type: " + methodHandle.cpx1);

  1155                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1156                     String mcn = mangleClassName(mi[0]);

  1157                     char[] returnType = {'V'};

  1158                     StringBuilder cnt = new StringBuilder();

  1159                     String mn = findMethodName(mi, cnt, returnType);

  1160                     StringBuilder sb = new StringBuilder();

  1161                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1162                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1163                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1164                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1165                     sb.append("  mn   : ").append(mn).append("\n");

  1166                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1167                     throw new IOException(sb.toString());

  1168                     /*

  1169                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1170                     String type = jc.StringValue(nameAndType.cpx2);

  1171                     String object = accessClass(mcn) + "(false)";

  1172                     if (mn.startsWith("cons_")) {

  1173                         object += ".constructor";

  1174                     }

  1175                     append("var metHan = ");

  1176                     append(accessStaticMethod(object, mn, mi));

  1177                     append('(');

  1178                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1179                     append(lookup);

  1180                     append(", '").append(mi[1]).append("', ");

  1181                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1182                     append(methodType).append("'").append(type).append("', null)");

  1183 //                    if (numArguments > 0) {

  1184 //                        append(vars[0]);

  1185 //                        for (int j = 1; j < numArguments; ++j) {

  1186 //                            append(", ");

  1187 //                            append(vars[j]);

  1188 //                        }

  1189 //                    }

  1190                     append(");");

  1191                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1192                     i += 4;

  1193                     break;

  1194                     */

  1195                 }

  1196                 case opc_new: {

  1197                     int indx = readUShortArg(byteCodes, i);

  1198                     String ci = jc.getClassName(indx);

  1199                     emit(smapper, this, "var @1 = new @2;",

  1200                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1201                     addReference(ci);

  1202                     i += 2;

  1203                     break;

  1204                 }

  1205                 case opc_newarray:

  1206                     int atype = readUByte(byteCodes, ++i);

  1207                     generateNewArray(atype, smapper);

  1208                     break;

  1209                 case opc_anewarray: {

  1210                     int type = readUShortArg(byteCodes, i);

  1211                     i += 2;

  1212                     generateANewArray(type, smapper);

  1213                     break;

  1214                 }

  1215                 case opc_multianewarray: {

  1216                     int type = readUShortArg(byteCodes, i);

  1217                     i += 2;

  1218                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1219                     break;

  1220                 }

  1221                 case opc_arraylength:

  1222                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1223                     break;

  1224                 case opc_lastore:

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

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

  1227                     break;

  1228                 case opc_fastore:

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

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

  1231                     break;

  1232                 case opc_dastore:

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

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

  1235                     break;

  1236                 case opc_aastore:

  1237                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1238                          smapper.popA(), smapper.popI(), smapper.popA());

  1239                     break;

  1240                 case opc_iastore:

  1241                 case opc_bastore:

  1242                 case opc_castore:

  1243                 case opc_sastore:

  1244                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1245                          smapper.popI(), smapper.popI(), smapper.popA());

  1246                     break;

  1247                 case opc_laload:

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

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

  1250                     break;

  1251                 case opc_faload:

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

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

  1254                     break;

  1255                 case opc_daload:

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

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

  1258                     break;

  1259                 case opc_aaload:

  1260                     smapper.replace(this, VarType.REFERENCE, "(@2[@1] || Array.at(@2, @1))",

  1261                          smapper.popI(), smapper.getA(0));

  1262                     break;

  1263                 case opc_iaload:

  1264                 case opc_baload:

  1265                 case opc_caload:

  1266                 case opc_saload:

  1267                     smapper.replace(this, VarType.INTEGER, "(@2[@1] || Array.at(@2, @1))",

  1268                          smapper.popI(), smapper.getA(0));

  1269                     break;

  1270                 case opc_pop:

  1271                 case opc_pop2:

  1272                     smapper.pop(1);

  1273                     debug("/* pop */");

  1274                     break;

  1275                 case opc_dup: {

  1276                     final Variable v = smapper.get(0);

  1277                     if (smapper.isDirty()) {

  1278                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1279                     } else {

  1280                         smapper.assign(this, v.getType(), v);

  1281                     }

  1282                     break;

  1283                 }

  1284                 case opc_dup2: {

  1285                     final Variable vi1 = smapper.get(0);

  1287                     if (vi1.isCategory2()) {

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

  1289                              smapper.pushT(vi1.getType()), vi1);

  1290                     } else {

  1291                         final Variable vi2 = smapper.get(1);

  1292                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1293                              smapper.pushT(vi2.getType()), vi2,

  1294                              smapper.pushT(vi1.getType()), vi1);

  1295                     }

  1296                     break;

  1297                 }

  1298                 case opc_dup_x1: {

  1299                     final Variable vi1 = smapper.pop(this);

  1300                     final Variable vi2 = smapper.pop(this);

  1301                     final Variable vo3 = smapper.pushT(vi1.getType());

  1302                     final Variable vo2 = smapper.pushT(vi2.getType());

  1303                     final Variable vo1 = smapper.pushT(vi1.getType());

  1305                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1306                          vo1, vi1, vo2, vi2, vo3, vo1);

  1307                     break;

  1308                 }

  1309                 case opc_dup2_x1: {

  1310                     final Variable vi1 = smapper.pop(this);

  1311                     final Variable vi2 = smapper.pop(this);

  1313                     if (vi1.isCategory2()) {

  1314                         final Variable vo3 = smapper.pushT(vi1.getType());

  1315                         final Variable vo2 = smapper.pushT(vi2.getType());

  1316                         final Variable vo1 = smapper.pushT(vi1.getType());

  1318                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1319                              vo1, vi1, vo2, vi2, vo3, vo1);

  1320                     } else {

  1321                         final Variable vi3 = smapper.pop(this);

  1322                         final Variable vo5 = smapper.pushT(vi2.getType());

  1323                         final Variable vo4 = smapper.pushT(vi1.getType());

  1324                         final Variable vo3 = smapper.pushT(vi3.getType());

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

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

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

  1329                              vo1, vi1, vo2, vi2, vo3, vi3);

  1330                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1331                              vo4, vo1, vo5, vo2);

  1332                     }

  1333                     break;

  1334                 }

  1335                 case opc_dup_x2: {

  1336                     final Variable vi1 = smapper.pop(this);

  1337                     final Variable vi2 = smapper.pop(this);

  1339                     if (vi2.isCategory2()) {

  1340                         final Variable vo3 = smapper.pushT(vi1.getType());

  1341                         final Variable vo2 = smapper.pushT(vi2.getType());

  1342                         final Variable vo1 = smapper.pushT(vi1.getType());

  1344                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1345                              vo1, vi1, vo2, vi2, vo3, vo1);

  1346                     } else {

  1347                         final Variable vi3 = smapper.pop(this);

  1348                         final Variable vo4 = smapper.pushT(vi1.getType());

  1349                         final Variable vo3 = smapper.pushT(vi3.getType());

  1350                         final Variable vo2 = smapper.pushT(vi2.getType());

  1351                         final Variable vo1 = smapper.pushT(vi1.getType());

  1353                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1354                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1355                     }

  1356                     break;

  1357                 }

  1358                 case opc_dup2_x2: {

  1359                     final Variable vi1 = smapper.pop(this);

  1360                     final Variable vi2 = smapper.pop(this);

  1362                     if (vi1.isCategory2()) {

  1363                         if (vi2.isCategory2()) {

  1364                             final Variable vo3 = smapper.pushT(vi1.getType());

  1365                             final Variable vo2 = smapper.pushT(vi2.getType());

  1366                             final Variable vo1 = smapper.pushT(vi1.getType());

  1368                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1369                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1370                         } else {

  1371                             final Variable vi3 = smapper.pop(this);

  1372                             final Variable vo4 = smapper.pushT(vi1.getType());

  1373                             final Variable vo3 = smapper.pushT(vi3.getType());

  1374                             final Variable vo2 = smapper.pushT(vi2.getType());

  1375                             final Variable vo1 = smapper.pushT(vi1.getType());

  1377                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1378                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1379                         }

  1380                     } else {

  1381                         final Variable vi3 = smapper.pop(this);

  1383                         if (vi3.isCategory2()) {

  1384                             final Variable vo5 = smapper.pushT(vi2.getType());

  1385                             final Variable vo4 = smapper.pushT(vi1.getType());

  1386                             final Variable vo3 = smapper.pushT(vi3.getType());

  1387                             final Variable vo2 = smapper.pushT(vi2.getType());

  1388                             final Variable vo1 = smapper.pushT(vi1.getType());

  1390                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1391                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1392                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1393                                  vo4, vo1, vo5, vo2);

  1394                         } else {

  1395                             final Variable vi4 = smapper.pop(this);

  1396                             final Variable vo6 = smapper.pushT(vi2.getType());

  1397                             final Variable vo5 = smapper.pushT(vi1.getType());

  1398                             final Variable vo4 = smapper.pushT(vi4.getType());

  1399                             final Variable vo3 = smapper.pushT(vi3.getType());

  1400                             final Variable vo2 = smapper.pushT(vi2.getType());

  1401                             final Variable vo1 = smapper.pushT(vi1.getType());

  1403                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1404                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1405                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1406                                  vo5, vo1, vo6, vo2);

  1407                         }

  1408                     }

  1409                     break;

  1410                 }

  1411                 case opc_swap: {

  1412                     final Variable vi1 = smapper.get(0);

  1413                     final Variable vi2 = smapper.get(1);

  1415                     if (vi1.getType() == vi2.getType()) {

  1416                         final Variable tmp = smapper.pushT(vi1.getType());

  1418                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1419                              tmp, vi1, vi2);

  1420                         smapper.pop(1);

  1421                     } else {

  1422                         smapper.pop(2);

  1423                         smapper.pushT(vi1.getType());

  1424                         smapper.pushT(vi2.getType());

  1425                     }

  1426                     break;

  1427                 }

  1428                 case opc_bipush:

  1429                     smapper.assign(this, VarType.INTEGER,

  1430                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1431                     break;

  1432                 case opc_sipush:

  1433                     smapper.assign(this, VarType.INTEGER,

  1434                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1435                     );

  1436                     i += 2;

  1437                     break;

  1438                 case opc_getfield: {

  1439                     int indx = readUShortArg(byteCodes, i);

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

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

  1442                     FieldData field = findField(fi);

  1443                     if (field == null) {

  1444                         final String mangleClass = mangleClassName(fi[0]);

  1445                         final String mangleClassAccess = accessClassFalse(mangleClass);

  1446                         smapper.replace(this, type, "@2.call(@1)",

  1447                              smapper.getA(0),

  1448                              accessField(mangleClassAccess, null, fi)

  1449                         );

  1450                     } else {

  1451                         final String fieldOwner = mangleClassName(field.cls.getClassName());

  1452                         smapper.replace(this, type, "@1.@2",

  1453                              smapper.getA(0),

  1454                              accessField(fieldOwner, field, fi)

  1455                         );

  1456                     }

  1457                     i += 2;

  1458                     addReference(fi[0]);

  1459                     break;

  1460                 }

  1461                 case opc_putfield: {

  1462                     int indx = readUShortArg(byteCodes, i);

  1463                     String[] fi = jc.getFieldInfoName(indx);

  1464                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1465                     FieldData field = findField(fi);

  1466                     if (field == null) {

  1467                         final String mangleClass = mangleClassName(fi[0]);

  1468                         final String mangleClassAccess = accessClassFalse(mangleClass);

  1469                         emit(smapper, this, "@3.call(@2, @1);",

  1470                              smapper.popT(type),

  1471                              smapper.popA(),

  1472                              accessField(mangleClassAccess, null, fi)

  1473                         );

  1474                     } else {

  1475                         final String fieldOwner = mangleClassName(field.cls.getClassName());

  1476                         emit(smapper, this, "@2.@3 = @1;",

  1477                              smapper.popT(type),

  1478                              smapper.popA(),

  1479                              accessField(fieldOwner, field, fi)

  1480                         );

  1481                     }

  1482                     i += 2;

  1483                     addReference(fi[0]);

  1484                     break;

  1485                 }

  1486                 case opc_getstatic: {

  1487                     int indx = readUShortArg(byteCodes, i);

  1488                     String[] fi = jc.getFieldInfoName(indx);

  1489                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1490                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1491                     FieldData field = findField(fi);

  1492                     String af = accessField(ac, field, fi);

  1493                     smapper.assign(this, type, af + "()");

  1494                     i += 2;

  1495                     addReference(fi[0]);

  1496                     break;

  1497                 }

  1498                 case opc_putstatic: {

  1499                     int indx = readUShortArg(byteCodes, i);

  1500                     String[] fi = jc.getFieldInfoName(indx);

  1501                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1502                     emit(smapper, this, "@1._@2(@3);",

  1503                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1504                          smapper.popT(type));

  1505                     i += 2;

  1506                     addReference(fi[0]);

  1507                     break;

  1508                 }

  1509                 case opc_checkcast: {

  1510                     int indx = readUShortArg(byteCodes, i);

  1511                     generateCheckcast(indx, smapper);

  1512                     i += 2;

  1513                     break;

  1514                 }

  1515                 case opc_instanceof: {

  1516                     int indx = readUShortArg(byteCodes, i);

  1517                     generateInstanceOf(indx, smapper);

  1518                     i += 2;

  1519                     break;

  1520                 }

  1521                 case opc_athrow: {

  1522                     final CharSequence v = smapper.popA();

  1523                     smapper.clear();

  1525                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1526                          smapper.pushA(), v);

  1527                     break;

  1528                 }

  1530                 case opc_monitorenter: {

  1531                     debug("/* monitor enter */");

  1532                     smapper.popA();

  1533                     break;

  1534                 }

  1536                 case opc_monitorexit: {

  1537                     debug("/* monitor exit */");

  1538                     smapper.popA();

  1539                     break;

  1540                 }

  1542                 case opc_wide:

  1543                     wide = true;

  1544                     break;

  1546                 default: {

  1547                     wide = false;

  1548                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1549                          Integer.toString(c));

  1550                 }

  1551             }

  1552             if (debug(" //")) {

  1553                 generateByteCodeComment(prev, i, byteCodes);

  1554             }

  1555             if (outChanged) {

  1556                 append("\n");

  1557             }

  1558         }

  1559         if (previousTrap != null) {

  1560             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1561         }

  1562         if (didBranches) {

  1563             append("\n    }\n");

  1564         }

  1565         while (openBraces-- > 0) {

  1566             append('}');

  1567         }

  1568         if (defineProp) {

  1569             append("\n}});");

  1570         } else {

  1571             append("\n};");

  1572         }

  1573         return defineProp;

  1574     }

  1576     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1577         int i, final CharSequence v2, final CharSequence v1,

  1578         final String test, int topMostLabel

  1579     ) throws IOException {

  1580         mapper.flush(this);

  1581         int indx = i + readShortArg(byteCodes, i);

  1582         append("if ((").append(v1)

  1583            .append(") ").append(test).append(" (")

  1584            .append(v2).append(")) ");

  1585         goTo(this, i, indx, topMostLabel);

  1586         return i + 2;

  1587     }

  1589     private int readInt4(byte[] byteCodes, int offset) {

  1590         final int d = byteCodes[offset + 0] << 24;

  1591         final int c = byteCodes[offset + 1] << 16;

  1592         final int b = byteCodes[offset + 2] << 8;

  1593         final int a = byteCodes[offset + 3];

  1594         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1595     }

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

  1597         return byteCodes[offset] & 0xff;

  1598     }

  1600     private static int readUShort(byte[] byteCodes, int offset) {

  1601         return ((byteCodes[offset] & 0xff) << 8)

  1602                     | (byteCodes[offset + 1] & 0xff);

  1603     }

  1604     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1605         return readUShort(byteCodes, offsetInstruction + 1);

  1606     }

  1608     private static int readShort(byte[] byteCodes, int offset) {

  1609         int signed = byteCodes[offset];

  1610         byte b0 = (byte)signed;

  1611         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1612     }

  1613     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1614         return readShort(byteCodes, offsetInstruction + 1);

  1615     }

  1617     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1618         int i = 0;

  1619         Boolean count = null;

  1620         boolean array = false;

  1621         sig.append("__");

  1622         int firstPos = sig.length();

  1623         while (i < descriptor.length()) {

  1624             char ch = descriptor.charAt(i++);

  1625             switch (ch) {

  1626                 case '(':

  1627                     count = true;

  1628                     continue;

  1629                 case ')':

  1630                     count = false;

  1631                     continue;

  1632                 case 'B':

  1633                 case 'C':

  1634                 case 'D':

  1635                 case 'F':

  1636                 case 'I':

  1637                 case 'J':

  1638                 case 'S':

  1639                 case 'Z':

  1640                     if (count) {

  1641                         if (array) {

  1642                             sig.append("_3");

  1643                         }

  1644                         sig.append(ch);

  1645                         if (ch == 'J' || ch == 'D') {

  1646                             cnt.append('1');

  1647                         } else {

  1648                             cnt.append('0');

  1649                         }

  1650                     } else {

  1651                         sig.insert(firstPos, ch);

  1652                         if (array) {

  1653                             returnType[0] = '[';

  1654                             sig.insert(firstPos, "_3");

  1655                         } else {

  1656                             returnType[0] = ch;

  1657                         }

  1658                     }

  1659                     array = false;

  1660                     continue;

  1661                 case 'V':

  1662                     assert !count;

  1663                     returnType[0] = 'V';

  1664                     sig.insert(firstPos, 'V');

  1665                     continue;

  1666                 case 'L':

  1667                     int next = descriptor.indexOf(';', i);

  1668                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1669                     if (count) {

  1670                         if (array) {

  1671                             sig.append("_3");

  1672                         }

  1673                         sig.append(realSig);

  1674                         cnt.append('0');

  1675                     } else {

  1676                         sig.insert(firstPos, realSig);

  1677                         if (array) {

  1678                             sig.insert(firstPos, "_3");

  1679                         }

  1680                         returnType[0] = 'L';

  1681                     }

  1682                     i = next + 1;

  1683                     array = false;

  1684                     continue;

  1685                 case '[':

  1686                     array = true;

  1687                     continue;

  1688                 default:

  1689                     throw new IllegalStateException("Invalid char: " + ch);

  1690             }

  1691         }

  1692     }

  1694     static String mangleSig(String sig) {

  1695         return mangleSig(sig, 0, sig.length());

  1696     }

  1698     private static String mangleMethodName(String name) {

  1699         StringBuilder sb = new StringBuilder(name.length() * 2);

  1700         int last = name.length();

  1701         for (int i = 0; i < last; i++) {

  1702             final char ch = name.charAt(i);

  1703             switch (ch) {

  1704                 case '_': sb.append("_1"); break;

  1705                 default: sb.append(ch); break;

  1706             }

  1707         }

  1708         return sb.toString();

  1709     }

  1710     private static String mangleSig(String txt, int first, int last) {

  1711         StringBuilder sb = new StringBuilder((last - first) * 2);

  1712         for (int i = first; i < last; i++) {

  1713             final char ch = txt.charAt(i);

  1714             switch (ch) {

  1715                 case '/': sb.append('_'); break;

  1716                 case '_': sb.append("_1"); break;

  1717                 case ';': sb.append("_2"); break;

  1718                 case '[': sb.append("_3"); break;

  1719                 default:

  1720                     if (Character.isJavaIdentifierPart(ch)) {

  1721                         sb.append(ch);

  1722                     } else {

  1723                         sb.append("_0");

  1724                         String hex = Integer.toHexString(ch).toLowerCase();

  1725                         for (int m = hex.length(); m < 4; m++) {

  1726                             sb.append("0");

  1727                         }

  1728                         sb.append(hex);

  1729                     }

  1730                 break;

  1731             }

  1732         }

  1733         return sb.toString();

  1734     }

  1736     private static String mangleClassName(String name) {

  1737         return mangleSig(name);

  1738     }

  1740     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1741         StringBuilder name = new StringBuilder();

  1742         if ("<init>".equals(m.getName())) { // NOI18N

  1743             name.append("cons"); // NOI18N

  1744         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1745             name.append("class"); // NOI18N

  1746         } else {

  1747             name.append(mangleMethodName(m.getName()));

  1748         }

  1750         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1751         return name.toString();

  1752     }

  1754     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1755         StringBuilder name = new StringBuilder();

  1756         String descr = mi[2];//mi.getDescriptor();

  1757         String nm= mi[1];

  1758         if ("<init>".equals(nm)) { // NOI18N

  1759             name.append("cons"); // NOI18N

  1760         } else {

  1761             name.append(mangleMethodName(nm));

  1762         }

  1763         countArgs(descr, returnType, name, cnt);

  1764         return name.toString();

  1765     }

  1767     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1768     throws IOException {

  1769         int methodIndex = readUShortArg(byteCodes, i);

  1770         String[] mi = jc.getFieldInfoName(methodIndex);

  1771         char[] returnType = { 'V' };

  1772         StringBuilder cnt = new StringBuilder();

  1773         String mn = findMethodName(mi, cnt, returnType);

  1775         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1776         final CharSequence[] vars = new CharSequence[numArguments];

  1778         for (int j = numArguments - 1; j >= 0; --j) {

  1779             vars[j] = mapper.popValue();

  1780         }

  1782         if ((

  1783             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1784             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1785         ) || (

  1786             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

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

  1788         )) {

  1789             if (vars[1] instanceof String) {

  1790                 String field = vars[1].toString();

  1791                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1792                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1793                 }

  1794             }

  1795         }

  1796         if (

  1797             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1798             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1799         ) {

  1800             if (vars[1] instanceof String) {

  1801                 String field = vars[2].toString();

  1802                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1803                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1804                 }

  1805             }

  1806         }

  1808         if (returnType[0] != 'V') {

  1809             mapper.flush(this);

  1810             append("var ")

  1811                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1812                .append(" = ");

  1813         }

  1815         final String in = mi[0];

  1816         String mcn;

  1817         if (callbacks && (

  1818             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1819             in.equals("org/netbeans/html/boot/spi/Fn")

  1820         )) {

  1821             mcn = "java_lang_Class";

  1822         } else {

  1823             mcn = mangleClassName(in);

  1824         }

  1825         String object = accessClassFalse(mcn);

  1826         if (mn.startsWith("cons_")) {

  1827             object += ".constructor";

  1828         }

  1829         append(accessStaticMethod(object, mn, mi));

  1830         if (isStatic) {

  1831             append('(');

  1832         } else {

  1833             append(".call(");

  1834         }

  1835         if (numArguments > 0) {

  1836             append(vars[0]);

  1837             for (int j = 1; j < numArguments; ++j) {

  1838                 append(", ");

  1839                 append(vars[j]);

  1840             }

  1841         }

  1842         append(");");

  1843         i += 2;

  1844         addReference(in);

  1845         return i;

  1846     }

  1847     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1848     throws IOException {

  1849         int methodIndex = readUShortArg(byteCodes, i);

  1850         String[] mi = jc.getFieldInfoName(methodIndex);

  1851         char[] returnType = { 'V' };

  1852         StringBuilder cnt = new StringBuilder();

  1853         String mn = findMethodName(mi, cnt, returnType);

  1855         final int numArguments = cnt.length() + 1;

  1856         final CharSequence[] vars =  new CharSequence[numArguments];

  1858         for (int j = numArguments - 1; j >= 0; --j) {

  1859             vars[j] = mapper.popValue();

  1860         }

  1862         if (returnType[0] != 'V') {

  1863             mapper.flush(this);

  1864             append("var ")

  1865                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1866                .append(" = ");

  1867         }

  1869         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1870         String sep = "";

  1871         for (int j = 1; j < numArguments; ++j) {

  1872             append(sep);

  1873             append(vars[j]);

  1874             sep = ", ";

  1875         }

  1876         append(");");

  1877         i += 2;

  1878         return i;

  1879     }

  1881     private void addReference(String cn) throws IOException {

  1882         if (requireReference(cn)) {

  1883             debug(" /* needs " + cn + " */");

  1884         }

  1885     }

  1887     private void outType(String d, StringBuilder out) {

  1888         int arr = 0;

  1889         while (d.charAt(0) == '[') {

  1890             out.append('A');

  1891             d = d.substring(1);

  1892         }

  1893         if (d.charAt(0) == 'L') {

  1894             assert d.charAt(d.length() - 1) == ';';

  1895             out.append(mangleClassName(d).substring(0, d.length() - 1));

  1896         } else {

  1897             out.append(d);

  1898         }

  1899     }

  1901     private String encodeConstant(int entryIndex) throws IOException {

  1902         String[] classRef = { null };

  1903         String s = jc.stringValue(entryIndex, classRef);

  1904         if (classRef[0] != null) {

  1905             if (classRef[0].startsWith("[")) {

  1906                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1907             } else {

  1908                 addReference(classRef[0]);

  1909                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1910             }

  1911         }

  1912         return s;

  1913     }

  1915     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1916         byte[] arr = m.findAnnotationData(true);

  1917         if (arr == null) {

  1918             return null;

  1919         }

  1920         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1921         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1922         class P extends AnnotationParser {

  1923             public P() {

  1924                 super(false, true);

  1925             }

  1927             int cnt;

  1928             String[] args = new String[30];

  1929             String body;

  1930             boolean javacall;

  1931             boolean html4j;

  1933             @Override

  1934             protected void visitAttr(String type, String attr, String at, String value) {

  1935                 if (type.equals(jvmType)) {

  1936                     if ("body".equals(attr)) {

  1937                         body = value;

  1938                     } else if ("args".equals(attr)) {

  1939                         args[cnt++] = value;

  1940                     } else {

  1941                         throw new IllegalArgumentException(attr);

  1942                     }

  1943                 }

  1944                 if (type.equals(htmlType)) {

  1945                     html4j = true;

  1946                     if ("body".equals(attr)) {

  1947                         body = value;

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

  1949                         args[cnt++] = value;

  1950                     } else if ("javacall".equals(attr)) {

  1951                         javacall = "1".equals(value);

  1952                     } else if ("wait4js".equals(attr)) {

  1953                         // ignore, we always invoke synchronously

  1954                     } else {

  1955                         throw new IllegalArgumentException(attr);

  1956                     }

  1957                 }

  1958             }

  1959         }

  1960         P p = new P();

  1961         p.parse(arr, jc);

  1962         if (p.body == null) {

  1963             return null;

  1964         }

  1965         StringBuilder cnt = new StringBuilder();

  1966         final String mn = findMethodName(m, cnt);

  1967         append("m = ").append(destObject).append(".").append(mn);

  1968         append(" = function(");

  1969         String space = "";

  1970         int index = 0;

  1971         StringBuilder toValue = new StringBuilder();

  1972         for (int i = 0; i < cnt.length(); i++) {

  1973             append(space);

  1974             space = outputArg(this, p.args, index);

  1975             if (p.html4j && space.length() > 0) {

  1976                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1977                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1978                     append(p.args[index]).append(");");

  1979             }

  1980             index++;

  1981         }

  1982         append(") {").append("\n");

  1983         append(toValue.toString());

  1984         if (p.javacall) {

  1985             int lastSlash = jc.getClassName().lastIndexOf('/');

  1986             final String pkg = jc.getClassName().substring(0, lastSlash);

  1987             append(mangleCallbacks(pkg, p.body));

  1988             requireReference(pkg + "/$JsCallbacks$");

  1989         } else {

  1990             append(p.body);

  1991         }

  1992         append("\n}\n");

  1993         return mn;

  1994     }

  1996     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1997         StringBuilder sb = new StringBuilder();

  1998         int pos = 0;

  1999         for (;;) {

  2000             int next = body.indexOf(".@", pos);

  2001             if (next == -1) {

  2002                 sb.append(body.substring(pos));

  2003                 body = sb.toString();

  2004                 break;

  2005             }

  2006             int ident = next;

  2007             while (ident > 0) {

  2008                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  2009                     ident++;

  2010                     break;

  2011                 }

  2012             }

  2013             String refId = body.substring(ident, next);

  2015             sb.append(body.substring(pos, ident));

  2017             int sigBeg = body.indexOf('(', next);

  2018             int sigEnd = body.indexOf(')', sigBeg);

  2019             int colon4 = body.indexOf("::", next);

  2020             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  2021                 throw new IllegalStateException("Malformed body " + body);

  2022             }

  2023             String fqn = body.substring(next + 2, colon4);

  2024             String method = body.substring(colon4 + 2, sigBeg);

  2025             String params = body.substring(sigBeg, sigEnd + 1);

  2027             int paramBeg = body.indexOf('(', sigEnd + 1);

  2029             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  2030             sb.append(mangleJsCallbacks(fqn, method, params, false));

  2031             sb.append("(").append(refId);

  2032             if (body.charAt(paramBeg + 1) != ')') {

  2033                 sb.append(",");

  2034             }

  2035             pos = paramBeg + 1;

  2036         }

  2037         sb = null;

  2038         pos = 0;

  2039         for (;;) {

  2040             int next = body.indexOf("@", pos);

  2041             if (next == -1) {

  2042                 if (sb == null) {

  2043                     return body;

  2044                 }

  2045                 sb.append(body.substring(pos));

  2046                 return sb;

  2047             }

  2048             if (sb == null) {

  2049                 sb = new StringBuilder();

  2050             }

  2052             sb.append(body.substring(pos, next));

  2054             int sigBeg = body.indexOf('(', next);

  2055             int sigEnd = body.indexOf(')', sigBeg);

  2056             int colon4 = body.indexOf("::", next);

  2057             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  2058                 throw new IllegalStateException("Malformed body " + body);

  2059             }

  2060             String fqn = body.substring(next + 1, colon4);

  2061             String method = body.substring(colon4 + 2, sigBeg);

  2062             String params = body.substring(sigBeg, sigEnd + 1);

  2064             int paramBeg = body.indexOf('(', sigEnd + 1);

  2066             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  2067             sb.append(mangleJsCallbacks(fqn, method, params, true));

  2068             sb.append("(");

  2069             pos = paramBeg + 1;

  2070         }

  2071     }

  2073     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2074         if (params.startsWith("(")) {

  2075             params = params.substring(1);

  2076         }

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

  2078             params = params.substring(0, params.length() - 1);

  2079         }

  2080         StringBuilder sb = new StringBuilder();

  2081         final String fqnu = fqn.replace('.', '_');

  2082         final String rfqn = mangleClassName(fqnu);

  2083         final String rm = mangleMethodName(method);

  2084         final String srp;

  2085         {

  2086             StringBuilder pb = new StringBuilder();

  2087             int len = params.length();

  2088             int indx = 0;

  2089             while (indx < len) {

  2090                 char ch = params.charAt(indx);

  2091                 if (ch == '[' || ch == 'L') {

  2092                     int column = params.indexOf(';', indx) + 1;

  2093                     if (column > indx) {

  2094                         String real = params.substring(indx, column);

  2095                         if ("Ljava/lang/String;".equals(real)) {

  2096                             pb.append("Ljava/lang/String;");

  2097                             indx = column;

  2098                             continue;

  2099                         }

  2100                     }

  2101                     pb.append("Ljava/lang/Object;");

  2102                     indx = column;

  2103                 } else {

  2104                     pb.append(ch);

  2105                     indx++;

  2106                 }

  2107             }

  2108             srp = mangleSig(pb.toString());

  2109         }

  2110         final String rp = mangleSig(params);

  2111         final String mrp = mangleMethodName(rp);

  2112         sb.append(rfqn).append("$").append(rm).

  2113             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2114         if (!isStatic) {

  2115             sb.append('L').append(fqnu).append("_2");

  2116         }

  2117         sb.append(srp);

  2118         return sb.toString();

  2119     }

  2121     private static String className(ClassData jc) {

  2122         //return jc.getName().getInternalName().replace('/', '_');

  2123         return mangleClassName(jc.getClassName());

  2124     }

  2126     private static String[] findAnnotation(

  2127         byte[] arr, ClassData cd, final String className,

  2128         final String... attrNames

  2129     ) throws IOException {

  2130         if (arr == null) {

  2131             return null;

  2132         }

  2133         final String[] values = new String[attrNames.length];

  2134         final boolean[] found = { false };

  2135         final String jvmType = "L" + className.replace('.', '/') + ";";

  2136         AnnotationParser ap = new AnnotationParser(false, true) {

  2137             @Override

  2138             protected void visitAttr(String type, String attr, String at, String value) {

  2139                 if (type.equals(jvmType)) {

  2140                     found[0] = true;

  2141                     for (int i = 0; i < attrNames.length; i++) {

  2142                         if (attrNames[i].equals(attr)) {

  2143                             values[i] = value;

  2144                         }

  2145                     }

  2146                 }

  2147             }

  2149         };

  2150         ap.parse(arr, cd);

  2151         return found[0] ? values : null;

  2152     }

  2154     private CharSequence initField(FieldData v) {

  2155         final String is = v.getInternalSig();

  2156         if (is.length() == 1) {

  2157             switch (is.charAt(0)) {

  2158                 case 'S':

  2159                 case 'J':

  2160                 case 'B':

  2161                 case 'Z':

  2162                 case 'C':

  2163                 case 'I': return " = 0;";

  2164                 case 'F':

  2165                 case 'D': return " = 0.0;";

  2166                 default:

  2167                     throw new IllegalStateException(is);

  2168             }

  2169         }

  2170         return " = null;";

  2171     }

  2173     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2174         final String name = args[indx];

  2175         if (name == null) {

  2176             return "";

  2177         }

  2178         if (name.contains(",")) {

  2179             throw new IOException("Wrong parameter with ',': " + name);

  2180         }

  2181         out.append(name);

  2182         return ",";

  2183     }

  2185     final void emitNoFlush(

  2186         StackMapper sm,

  2187         final String format, final CharSequence... params

  2188     ) throws IOException {

  2189         emitImpl(this, format, params);

  2190     }

  2191     static final void emit(

  2192         StackMapper sm,

  2193         final Appendable out,

  2194         final String format, final CharSequence... params

  2195     ) throws IOException {

  2196         sm.flush(out);

  2197         emitImpl(out, format, params);

  2198     }

  2199     static void emitImpl(final Appendable out,

  2200                              final String format,

  2201                              final CharSequence... params) throws IOException {

  2202         final int length = format.length();

  2204         int processed = 0;

  2205         int paramOffset = format.indexOf('@');

  2206         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2207             final char paramChar = format.charAt(paramOffset + 1);

  2208             if ((paramChar >= '1') && (paramChar <= '9')) {

  2209                 final int paramIndex = paramChar - '0' - 1;

  2211                 out.append(format, processed, paramOffset);

  2212                 out.append(params[paramIndex]);

  2214                 ++paramOffset;

  2215                 processed = paramOffset + 1;

  2216             }

  2218             paramOffset = format.indexOf('@', paramOffset + 1);

  2219         }

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

  2222     }

  2224     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2225         append("} catch (e) {\n");

  2226         int finallyPC = -1;

  2227         for (TrapData e : traps) {

  2228             if (e == null) {

  2229                 break;

  2230             }

  2231             if (e.catch_cpx != 0) { //not finally

  2232                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2233                 addReference(classInternalName);

  2234                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2235                 append("if (e['$instOf_" + mangleClassName(classInternalName) + "']) {");

  2236                 append("var stA0 = e;");

  2237                 goTo(this, current, e.handler_pc, topMostLabel);

  2238                 append("}\n");

  2239             } else {

  2240                 finallyPC = e.handler_pc;

  2241             }

  2242         }

  2243         if (finallyPC == -1) {

  2244             append("throw e;");

  2245         } else {

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

  2247             goTo(this, current, finallyPC, topMostLabel);

  2248         }

  2249         append("\n}");

  2250     }

  2252     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2253         if (to < current) {

  2254             if (canBack < to) {

  2255                 out.append("{ gt = 0; continue X_" + to + "; }");

  2256             } else {

  2257                 out.append("{ gt = " + to + "; continue X_0; }");

  2258             }

  2259         } else {

  2260             out.append("{ gt = " + to + "; break IF; }");

  2261         }

  2262     }

  2264     private static void emitIf(

  2265         StackMapper sm,

  2266         Appendable out, String pattern,

  2267         CharSequence param,

  2268         int current, int to, int canBack

  2269     ) throws IOException {

  2270         sm.flush(out);

  2271         emitImpl(out, pattern, param);

  2272         goTo(out, current, to, canBack);

  2273     }

  2275     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2276         String jvmType;

  2277         switch (atype) {

  2278             case 4: jvmType = "[Z"; break;

  2279             case 5: jvmType = "[C"; break;

  2280             case 6: jvmType = "[F"; break;

  2281             case 7: jvmType = "[D"; break;

  2282             case 8: jvmType = "[B"; break;

  2283             case 9: jvmType = "[S"; break;

  2284             case 10: jvmType = "[I"; break;

  2285             case 11: jvmType = "[J"; break;

  2286             default: throw new IllegalStateException("Array type: " + atype);

  2287         }

  2288         emit(smapper, this,

  2289             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2290              smapper.popI(), smapper.pushA(), jvmType);

  2291     }

  2293     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2294         String typeName = jc.getClassName(type);

  2295         String ref = "null";

  2296         if (typeName.startsWith("[")) {

  2297             typeName = "'[" + typeName + "'";

  2298         } else {

  2299             ref = "vm." + mangleClassName(typeName);

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

  2301         }

  2302         emit(smapper, this,

  2303             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2304              smapper.popI(), smapper.pushA(), typeName, ref);

  2305     }

  2307     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2308         String typeName = jc.getClassName(type);

  2309         int dim = readUByte(byteCodes, ++i);

  2310         StringBuilder dims = new StringBuilder();

  2311         dims.append('[');

  2312         for (int d = 0; d < dim; d++) {

  2313             if (d != 0) {

  2314                 dims.insert(1, ",");

  2315             }

  2316             dims.insert(1, smapper.popI());

  2317         }

  2318         dims.append(']');

  2319         String fn = "null";

  2320         if (typeName.charAt(dim) == 'L') {

  2321             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2322         }

  2323         emit(smapper, this,

  2324             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2325              dims.toString(), smapper.pushA(), typeName, fn

  2326         );

  2327         return i;

  2328     }

  2330     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2331         int table = i / 4 * 4 + 4;

  2332         int dflt = i + readInt4(byteCodes, table);

  2333         table += 4;

  2334         int low = readInt4(byteCodes, table);

  2335         table += 4;

  2336         int high = readInt4(byteCodes, table);

  2337         table += 4;

  2338         final CharSequence swVar = smapper.popValue();

  2339         smapper.flush(this);

  2340         append("switch (").append(swVar).append(") {\n");

  2341         while (low <= high) {

  2342             int offset = i + readInt4(byteCodes, table);

  2343             table += 4;

  2344             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2345             low++;

  2346         }

  2347         append("  default: ");

  2348         goTo(this, i, dflt, topMostLabel);

  2349         append("\n}");

  2350         i = table - 1;

  2351         return i;

  2352     }

  2354     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2355         int table = i / 4 * 4 + 4;

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

  2357         table += 4;

  2358         int n = readInt4(byteCodes, table);

  2359         table += 4;

  2360         final CharSequence swVar = smapper.popValue();

  2361         smapper.flush(this);

  2362         append("switch (").append(swVar).append(") {\n");

  2363         while (n-- > 0) {

  2364             int cnstnt = readInt4(byteCodes, table);

  2365             table += 4;

  2366             int offset = i + readInt4(byteCodes, table);

  2367             table += 4;

  2368             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2369         }

  2370         append("  default: ");

  2371         goTo(this, i, dflt, topMostLabel);

  2372         append("\n}");

  2373         i = table - 1;

  2374         return i;

  2375     }

  2377     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2378         String type = jc.getClassName(indx);

  2379         if (!type.startsWith("[")) {

  2380             emit(smapper, this,

  2381                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2382                  smapper.popA(), smapper.pushI(),

  2383                  mangleClassName(type));

  2384         } else {

  2385             int cnt = 0;

  2386             while (type.charAt(cnt) == '[') {

  2387                 cnt++;

  2388             }

  2389             if (type.charAt(cnt) == 'L') {

  2390                 String component = type.substring(cnt + 1, type.length() - 1);

  2391                 requireReference(component);

  2392                 type = "vm." + mangleClassName(component);

  2393                 emit(smapper, this,

  2394                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2395                     smapper.popA(), smapper.pushI(),

  2396                     type, "" + cnt

  2397                 );

  2398             } else {

  2399                 emit(smapper, this,

  2400                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2401                     smapper.popA(), smapper.pushI(), type

  2402                 );

  2403             }

  2404         }

  2405     }

  2407     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2408         String type = jc.getClassName(indx);

  2409         if (!type.startsWith("[")) {

  2410             emitNoFlush(smapper,

  2411                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2412                  smapper.getT(0, VarType.REFERENCE, false), mangleClassName(type));

  2413         } else {

  2414             int cnt = 0;

  2415             while (type.charAt(cnt) == '[') {

  2416                 cnt++;

  2417             }

  2418             if (type.charAt(cnt) == 'L') {

  2419                 String component = type.substring(cnt + 1, type.length() - 1);

  2420                 requireReference(component);

  2421                 type = "vm." + mangleClassName(component);

  2422                 emitNoFlush(smapper,

  2423                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2424                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2425                 );

  2426             } else {

  2427                 emitNoFlush(smapper,

  2428                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2429                      smapper.getT(0, VarType.REFERENCE, false), type

  2430                 );

  2431             }

  2432         }

  2433     }

  2435     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2436         for (int j = prev; j <= i; j++) {

  2437             append(" ");

  2438             final int cc = readUByte(byteCodes, j);

  2439             append(Integer.toString(cc));

  2440         }

  2441     }

  2443     @JavaScriptBody(args = "msg", body = "")

  2444     private static void println(String msg) {

  2445         System.err.println(msg);

  2446     }

  2448     private class GenerateAnno extends AnnotationParser {

  2449         public GenerateAnno(boolean textual, boolean iterateArray) {

  2450             super(textual, iterateArray);

  2451         }

  2452         int[] cnt = new int[32];

  2453         int depth;

  2455         @Override

  2456         protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2457             final String slashType = attrType.substring(1, attrType.length() - 1);

  2458             requireReference(slashType);

  2460             if (cnt[depth]++ > 0) {

  2461                 append(",");

  2462             }

  2463             if (top) {

  2464                 append('"').append(attrType).append("\" : ");

  2465             }

  2466             append("{\n");

  2467             cnt[++depth] = 0;

  2468         }

  2470         @Override

  2471         protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2472             append("\n}\n");

  2473             depth--;

  2474         }

  2476         @Override

  2477         protected void visitValueStart(String attrName, char type) throws IOException {

  2478             if (cnt[depth]++ > 0) {

  2479                 append(",\n");

  2480             }

  2481             cnt[++depth] = 0;

  2482             if (attrName != null) {

  2483                 append('"').append(attrName).append("\" : ");

  2484             }

  2485             if (type == '[') {

  2486                 append("[");

  2487             }

  2488         }

  2490         @Override

  2491         protected void visitValueEnd(String attrName, char type) throws IOException {

  2492             if (type == '[') {

  2493                 append("]");

  2494             }

  2495             depth--;

  2496         }

  2498         @Override

  2499         protected void visitAttr(String type, String attr, String attrType, String value)

  2500             throws IOException {

  2501             if (attr == null && value == null) {

  2502                 return;

  2503             }

  2504             append(value);

  2505         }

  2507         @Override

  2508         protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2509             throws IOException {

  2510             final String slashType = attrType.substring(1, attrType.length() - 1);

  2511             requireReference(slashType);

  2513             final String cn = mangleClassName(slashType);

  2514             append(accessClassFalse(cn))

  2515                 .append("['valueOf__L").

  2516                 append(cn).

  2517                 append("_2Ljava_lang_String_2']('").

  2518                 append(value).

  2519                 append("')");

  2520         }

  2522         @Override

  2523         protected void visitClassAttr(String annoType, String attr, String className) throws IOException {

  2524             final String slashType = className.substring(1, className.length() - 1);

  2525             requireReference(slashType);

  2527             final String cn = mangleClassName(slashType);

  2528             append(accessClassFalse(cn)).append(".constructor.$class");

  2529         }

  2530     }

  2531 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Sun, 20 Mar 2016 08:12:55 +0100
changeset 1898	cf6d5d357696
parent 1889	e1953d8b8338
child 1902	c3dee54ecc15
permissions	-rw-r--r--