hg/bck2brwsr: rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java@34efbdde4eca

     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;

    45     protected ByteCodeToJavaScript(Appendable out) {

    46         this.out = out;

    47     }

    49     @Override

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

    51         out.append(csq);

    52         outChanged = true;

    53         return this;

    54     }

    56     @Override

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

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

    59         outChanged = true;

    60         return this;

    61     }

    63     @Override

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

    65         out.append(c);

    66         outChanged = true;

    67         return this;

    68     }

    70     /* Collects additional required resources.

    71      *

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

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

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

    75      */

    76     protected abstract boolean requireReference(String internalClassName);

    78     /*

    79      * @param resourcePath name of resources to read

    80      */

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

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

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

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

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

    88      *

    89      * @param className suggested name of the class

    90      */

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

    92         return className + " = ";

    93     }

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

    95         return classOperation;

    96     }

    98     final String accessClassFalse(String classOperation) {

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

   100             return "c";

   101         }

   102         classRefs.addIfMissing(classOperation);

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

   104     }

   106     protected String accessField(String object, String[] fieldInfoName)

   107     throws IOException {

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

   109         return object + "." + mangledName;

   110     }

   112     protected String accessStaticMethod(

   113                              String object,

   114                              String mangledName,

   115                              String[] fieldInfoName) throws IOException {

   116         return object + "." + mangledName;

   117     }

   119     protected String accessVirtualMethod(

   120             String object,

   121             String mangledName,

   122             String[] fieldInfoName,

   123             int params

   124     ) throws IOException {

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

   126     }

   128     protected void declaredClass(ClassData classData, String mangledName)

   129             throws IOException {

   130     }

   132     protected void declaredField(FieldData fieldData,

   133                                  String destObject,

   134                                  String mangledName) throws IOException {

   135     }

   137     protected void declaredMethod(MethodData methodData,

   138                                   String destObject,

   139                                   String mangledName) throws IOException {

   140     }

   142     /** Prints out a debug message.

   143      *

   144      * @param msg the message

   145      * @return true if the message has been printed

   146      * @throws IOException

   147      */

   148     boolean debug(String msg) throws IOException {

   149         append(msg);

   150         return true;

   151     }

   153     /**

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

   155      *

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

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

   158      *

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

   160      */

   162     public String compile(InputStream classFile) throws IOException {

   163         return compile(new ClassData(classFile));

   164     }

   166     protected String compile(ClassData classData) throws IOException {

   167         this.jc = classData;

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

   169         try {

   170             return compileImpl(cn);

   171         } catch (IOException ex) {

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

   173         }

   174     }

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

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

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

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

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

   181             );

   182         }

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

   184         {

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

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

   187                 "resource", "processByteCode"

   188             );

   189             if (arr != null) {

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

   191                     requireScript(arr[0]);

   192                 }

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

   194                     return null;

   195                 }

   196             }

   197         }

   198         final String jsResource;

   199         {

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

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

   202                 "value"

   203             );

   204             if (arr != null) {

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

   206                     jsResource = arr[0];

   207                 } else {

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

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

   210                 }

   211             } else {

   212                 jsResource = null;

   213             }

   214         }

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

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

   217             "container", "prototype"

   218         );

   219         StringArray toInitilize = new StringArray();

   220         final String className = className(jc);

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

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

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

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

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

   226         if (proto == null) {

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

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

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

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

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

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

   233         } else {

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

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

   236                 proto[0] = "p";

   237             }

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

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

   240         }

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

   242             if (v.isStatic()) {

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

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

   245                         continue;

   246                     }

   247                 }

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

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

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

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

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

   253             } else {

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

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

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

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

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

   259                     .append("; };");

   260             }

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

   263         }

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

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

   266             if (javaScriptOnly(onlyArr)) continue;

   267             String destObject;

   268             String mn;

   269             append("\n    ");

   270             if (m.isStatic()) {

   271                 destObject = "c";

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

   273             } else {

   274                 if (m.isConstructor()) {

   275                     destObject = "CLS";

   276                     mn = generateInstanceMethod(destObject, m);

   277                 } else {

   278                     destObject = "c";

   279                     mn = generateInstanceMethod(destObject, m);

   280                 }

   281             }

   282             declaredMethod(m, destObject, mn);

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

   284             if (runAnno != null) {

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

   286                 generateAnno(jc, runAnno);

   287                 append("\n    };");

   288             }

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

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

   291         }

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

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

   294         String instOfName = "$instOf_" + className;

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

   296         if (jc.isInterface()) {

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

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

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

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

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

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

   303                 }

   304             }

   305         }

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

   307             String intrfc = mangleClassName(superInterface);

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

   309             requireReference(superInterface);

   310         }

   311         append("\n    }");

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

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

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

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

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

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

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

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

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

   321         {

   322             boolean first = true;

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

   324                 if (!first) {

   325                     append(",");

   326                 }

   327                 requireReference(intrfc);

   328                 String mangledIface = mangleClassName(intrfc);

   329                 append("\n        ");

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

   331                 first = false;

   332             }

   333         }

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

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

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

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

   338         if (classAnno != null) {

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

   340             generateAnno(jc, classAnno);

   341             append("\n    };");

   342         }

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

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

   345         }

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

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

   348         }

   349         classRefs.clear();

   351         if (jsResource != null) {

   352             requireResource(jsResource);

   353         }

   355         append("\n  }");

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

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

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

   359         append("\n    }");

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

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

   362             if (javaScriptOnly(onlyArr)) continue;

   363             if (!v.isStatic()) {

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

   365                     append(className).append('_').

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

   367             }

   368         }

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

   370         append("\n  }");

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

   372         append("\n};");

   374         declaredClass(jc, className);

   376 //        StringBuilder sb = new StringBuilder();

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

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

   379 //        }

   380         return "";

   381     }

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

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

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

   386             "name", "value"

   387         );

   388         if (only != null) {

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

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

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

   392             }

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

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

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

   396             }

   397             return true;

   398         }

   399         return false;

   400     }

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

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

   403         if (jsb != null) {

   404             return jsb;

   405         }

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

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

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

   409             if (defineProp) {

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

   411             } else {

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

   413             }

   414         }

   415         return mn;

   416     }

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

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

   420         if (jsb != null) {

   421             return jsb;

   422         }

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

   424         generateMethod(destObject, mn, m);

   425         return mn;

   426     }

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

   429             throws IOException {

   430         final StackMapIterator stackMapIterator = m.createStackMapIterator();

   431         TrapDataIterator trap = m.getTrapDataIterator();

   432         final LocalsMapper lmapper =

   433                 new LocalsMapper(stackMapIterator.getArguments());

   435         boolean defineProp =

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

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

   439         if (defineProp) {

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

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

   442         } else {

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

   444         }

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

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

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

   449         if (byteCodes == null) {

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

   451                this

   452                .append(jc.getClassName()).append('.')

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

   454             }

   455             if (defineProp) {

   456                 append("}});");

   457             } else {

   458                 append("};");

   459             }

   460             return defineProp;

   461         }

   463         final StackMapper smapper = new StackMapper();

   465         if (!m.isStatic()) {

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

   467         }

   469         int lastStackFrame;

   470         TrapData[] previousTrap = null;

   471         boolean wide = false;

   472         boolean didBranches;

   473         if (stackMapIterator.isEmpty()) {

   474             didBranches = false;

   475             lastStackFrame = 0;

   476         } else {

   477             didBranches = true;

   478             lastStackFrame = -1;

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

   480         }

   482         int openBraces = 0;

   483         int topMostLabel = 0;

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

   485             int prev = i;

   486             outChanged = false;

   487             stackMapIterator.advanceTo(i);

   488             boolean changeInCatch = trap.advanceTo(i);

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

   490                 if (previousTrap != null) {

   491                     generateCatch(previousTrap, i, topMostLabel);

   492                     previousTrap = null;

   493                 }

   494             }

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

   496                 smapper.flush(this);

   497                 if (i != 0) {

   498                     append("    }\n");

   499                 }

   500                 if (openBraces > 64) {

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

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

   503                     }

   504                     openBraces = 1;

   505                     topMostLabel = i;

   506                 }

   508                 lastStackFrame = stackMapIterator.getFrameIndex();

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

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

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

   512                 openBraces++;

   513                 changeInCatch = true;

   514             } else {

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

   516             }

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

   518                 append("try {");

   519                 previousTrap = trap.current();

   520             }

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

   522             switch (c) {

   523                 case opc_aload_0:

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

   525                     break;

   526                 case opc_iload_0:

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

   528                     break;

   529                 case opc_lload_0:

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

   531                     break;

   532                 case opc_fload_0:

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

   534                     break;

   535                 case opc_dload_0:

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

   537                     break;

   538                 case opc_aload_1:

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

   540                     break;

   541                 case opc_iload_1:

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

   543                     break;

   544                 case opc_lload_1:

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

   546                     break;

   547                 case opc_fload_1:

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

   549                     break;

   550                 case opc_dload_1:

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

   552                     break;

   553                 case opc_aload_2:

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

   555                     break;

   556                 case opc_iload_2:

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

   558                     break;

   559                 case opc_lload_2:

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

   561                     break;

   562                 case opc_fload_2:

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

   564                     break;

   565                 case opc_dload_2:

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

   567                     break;

   568                 case opc_aload_3:

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

   570                     break;

   571                 case opc_iload_3:

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

   573                     break;

   574                 case opc_lload_3:

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

   576                     break;

   577                 case opc_fload_3:

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

   579                     break;

   580                 case opc_dload_3:

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

   582                     break;

   583                 case opc_iload: {

   584                     ++i;

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

   586                                           : readUByte(byteCodes, i);

   587                     wide = false;

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

   589                     break;

   590                 }

   591                 case opc_lload: {

   592                     ++i;

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

   594                                           : readUByte(byteCodes, i);

   595                     wide = false;

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

   597                     break;

   598                 }

   599                 case opc_fload: {

   600                     ++i;

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

   602                                           : readUByte(byteCodes, i);

   603                     wide = false;

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

   605                     break;

   606                 }

   607                 case opc_dload: {

   608                     ++i;

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

   610                                           : readUByte(byteCodes, i);

   611                     wide = false;

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

   613                     break;

   614                 }

   615                 case opc_aload: {

   616                     ++i;

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

   618                                           : readUByte(byteCodes, i);

   619                     wide = false;

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

   621                     break;

   622                 }

   623                 case opc_istore: {

   624                     ++i;

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

   626                                           : readUByte(byteCodes, i);

   627                     wide = false;

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

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

   630                     break;

   631                 }

   632                 case opc_lstore: {

   633                     ++i;

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

   635                                           : readUByte(byteCodes, i);

   636                     wide = false;

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

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

   639                     break;

   640                 }

   641                 case opc_fstore: {

   642                     ++i;

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

   644                                           : readUByte(byteCodes, i);

   645                     wide = false;

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

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

   648                     break;

   649                 }

   650                 case opc_dstore: {

   651                     ++i;

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

   653                                           : readUByte(byteCodes, i);

   654                     wide = false;

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

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

   657                     break;

   658                 }

   659                 case opc_astore: {

   660                     ++i;

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

   662                                           : readUByte(byteCodes, i);

   663                     wide = false;

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

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

   666                     break;

   667                 }

   668                 case opc_astore_0:

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

   670                     break;

   671                 case opc_istore_0:

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

   673                     break;

   674                 case opc_lstore_0:

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

   676                     break;

   677                 case opc_fstore_0:

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

   679                     break;

   680                 case opc_dstore_0:

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

   682                     break;

   683                 case opc_astore_1:

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

   685                     break;

   686                 case opc_istore_1:

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

   688                     break;

   689                 case opc_lstore_1:

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

   691                     break;

   692                 case opc_fstore_1:

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

   694                     break;

   695                 case opc_dstore_1:

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

   697                     break;

   698                 case opc_astore_2:

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

   700                     break;

   701                 case opc_istore_2:

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

   703                     break;

   704                 case opc_lstore_2:

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

   706                     break;

   707                 case opc_fstore_2:

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

   709                     break;

   710                 case opc_dstore_2:

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

   712                     break;

   713                 case opc_astore_3:

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

   715                     break;

   716                 case opc_istore_3:

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

   718                     break;

   719                 case opc_lstore_3:

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

   721                     break;

   722                 case opc_fstore_3:

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

   724                     break;

   725                 case opc_dstore_3:

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

   727                     break;

   728                 case opc_iadd:

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

   730                     break;

   731                 case opc_ladd:

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

   733                     break;

   734                 case opc_fadd:

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

   736                     break;

   737                 case opc_dadd:

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

   739                     break;

   740                 case opc_isub:

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

   742                     break;

   743                 case opc_lsub:

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

   745                     break;

   746                 case opc_fsub:

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

   748                     break;

   749                 case opc_dsub:

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

   751                     break;

   752                 case opc_imul:

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

   754                     break;

   755                 case opc_lmul:

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

   757                     break;

   758                 case opc_fmul:

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

   760                     break;

   761                 case opc_dmul:

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

   763                     break;

   764                 case opc_idiv:

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

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

   767                     break;

   768                 case opc_ldiv:

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

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

   771                     break;

   772                 case opc_fdiv:

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

   774                     break;

   775                 case opc_ddiv:

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

   777                     break;

   778                 case opc_irem:

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

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

   781                     break;

   782                 case opc_lrem:

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

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

   785                     break;

   786                 case opc_frem:

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

   788                     break;

   789                 case opc_drem:

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

   791                     break;

   792                 case opc_iand:

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

   794                     break;

   795                 case opc_land:

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

   797                     break;

   798                 case opc_ior:

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

   800                     break;

   801                 case opc_lor:

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

   803                     break;

   804                 case opc_ixor:

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

   806                     break;

   807                 case opc_lxor:

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

   809                     break;

   810                 case opc_ineg:

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

   812                     break;

   813                 case opc_lneg:

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

   815                     break;

   816                 case opc_fneg:

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

   818                     break;

   819                 case opc_dneg:

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

   821                     break;

   822                 case opc_ishl:

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

   824                     break;

   825                 case opc_lshl:

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

   827                     break;

   828                 case opc_ishr:

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

   830                     break;

   831                 case opc_lshr:

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

   833                     break;

   834                 case opc_iushr:

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

   836                     break;

   837                 case opc_lushr:

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

   839                     break;

   840                 case opc_iinc: {

   841                     ++i;

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

   843                                              : readUByte(byteCodes, i);

   844                     ++i;

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

   846                                             : byteCodes[i];

   847                     wide = false;

   848                     if (incrBy == 1) {

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

   850                     } else {

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

   852                              lmapper.getI(varIndx),

   853                              Integer.toString(incrBy));

   854                     }

   855                     break;

   856                 }

   857                 case opc_return:

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

   859                     break;

   860                 case opc_ireturn:

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

   862                     break;

   863                 case opc_lreturn:

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

   865                     break;

   866                 case opc_freturn:

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

   868                     break;

   869                 case opc_dreturn:

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

   871                     break;

   872                 case opc_areturn:

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

   874                     break;

   875                 case opc_i2l:

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

   877                     break;

   878                 case opc_i2f:

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

   880                     break;

   881                 case opc_i2d:

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

   883                     break;

   884                 case opc_l2i:

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

   886                     break;

   887                     // max int check?

   888                 case opc_l2f:

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

   890                     break;

   891                 case opc_l2d:

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

   893                     break;

   894                 case opc_f2d:

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

   896                          smapper.getF(0));

   897                     break;

   898                 case opc_d2f:

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

   900                          smapper.getD(0));

   901                     break;

   902                 case opc_f2i:

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

   904                          smapper.getF(0));

   905                     break;

   906                 case opc_f2l:

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

   908                          smapper.getF(0));

   909                     break;

   910                 case opc_d2i:

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

   912                          smapper.getD(0));

   913                     break;

   914                 case opc_d2l:

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

   916                     break;

   917                 case opc_i2b:

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

   919                     break;

   920                 case opc_i2c:

   921                 case opc_i2s:

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

   923                     break;

   924                 case opc_aconst_null:

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

   926                     break;

   927                 case opc_iconst_m1:

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

   929                     break;

   930                 case opc_iconst_0:

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

   932                     break;

   933                 case opc_dconst_0:

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

   935                     break;

   936                 case opc_lconst_0:

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

   938                     break;

   939                 case opc_fconst_0:

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

   941                     break;

   942                 case opc_iconst_1:

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

   944                     break;

   945                 case opc_lconst_1:

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

   947                     break;

   948                 case opc_fconst_1:

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

   950                     break;

   951                 case opc_dconst_1:

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

   953                     break;

   954                 case opc_iconst_2:

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

   956                     break;

   957                 case opc_fconst_2:

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

   959                     break;

   960                 case opc_iconst_3:

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

   962                     break;

   963                 case opc_iconst_4:

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

   965                     break;

   966                 case opc_iconst_5:

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

   968                     break;

   969                 case opc_ldc: {

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

   971                     String v = encodeConstant(indx);

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

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

   974                     break;

   975                 }

   976                 case opc_ldc_w:

   977                 case opc_ldc2_w: {

   978                     int indx = readUShortArg(byteCodes, i);

   979                     i += 2;

   980                     String v = encodeConstant(indx);

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

   982                     if (type == VarType.LONG) {

   983                         final Long lv = new Long(v);

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

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

   986                         if (hi == 0) {

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

   988                         } else {

   989                             smapper.assign(this, VarType.LONG,

   990                                 "0x" + Integer.toHexString(hi) + ".next32(0x" +

   991                                     Integer.toHexString(low) + ")"

   992                             );

   993                         }

   994                     } else {

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

   996                     }

   997                     break;

   998                 }

   999                 case opc_lcmp:

  1000                     smapper.replace(this, VarType.INTEGER, "(@2).compare64(@1)", smapper.popL(), smapper.getL(0));

  1001                     break;

  1002                 case opc_fcmpl:

  1003                 case opc_fcmpg:

  1004                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1005                          smapper.popF(), smapper.popF(), smapper.pushI());

  1006                     break;

  1007                 case opc_dcmpl:

  1008                 case opc_dcmpg:

  1009                     emit(smapper, this, "var @3 = (@2 == @1) ? 0 : ((@2 < @1) ? -1 : 1);",

  1010                          smapper.popD(), smapper.popD(), smapper.pushI());

  1011                     break;

  1012                 case opc_if_acmpeq:

  1013                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

  1014                                    "===", topMostLabel);

  1015                     break;

  1016                 case opc_if_acmpne:

  1017                     i = generateIf(smapper, byteCodes, i, smapper.popA(), smapper.popA(),

  1018                                    "!==", topMostLabel);

  1019                     break;

  1020                 case opc_if_icmpeq:

  1021                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1022                                    "==", topMostLabel);

  1023                     break;

  1024                 case opc_ifeq: {

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

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

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

  1028                     i += 2;

  1029                     break;

  1030                 }

  1031                 case opc_ifne: {

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

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

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

  1035                     i += 2;

  1036                     break;

  1037                 }

  1038                 case opc_iflt: {

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

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

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

  1042                     i += 2;

  1043                     break;

  1044                 }

  1045                 case opc_ifle: {

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

  1047                     emitIf(smapper, this, "if ((@1) <= 0) ",

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

  1049                     i += 2;

  1050                     break;

  1051                 }

  1052                 case opc_ifgt: {

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

  1054                     emitIf(smapper, this, "if ((@1) > 0) ",

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

  1056                     i += 2;

  1057                     break;

  1058                 }

  1059                 case opc_ifge: {

  1060                     int indx = i + readShortArg(byteCodes, i);

  1061                     emitIf(smapper, this, "if ((@1) >= 0) ",

  1062                          smapper.popI(), i, indx, topMostLabel);

  1063                     i += 2;

  1064                     break;

  1065                 }

  1066                 case opc_ifnonnull: {

  1067                     int indx = i + readShortArg(byteCodes, i);

  1068                     emitIf(smapper, this, "if ((@1) !== null) ",

  1069                          smapper.popA(), i, indx, topMostLabel);

  1070                     i += 2;

  1071                     break;

  1072                 }

  1073                 case opc_ifnull: {

  1074                     int indx = i + readShortArg(byteCodes, i);

  1075                     emitIf(smapper, this, "if ((@1) === null) ",

  1076                          smapper.popA(), i, indx, topMostLabel);

  1077                     i += 2;

  1078                     break;

  1079                 }

  1080                 case opc_if_icmpne:

  1081                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1082                                    "!=", topMostLabel);

  1083                     break;

  1084                 case opc_if_icmplt:

  1085                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1086                                    "<", topMostLabel);

  1087                     break;

  1088                 case opc_if_icmple:

  1089                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1090                                    "<=", topMostLabel);

  1091                     break;

  1092                 case opc_if_icmpgt:

  1093                     i = generateIf(smapper, byteCodes, i, smapper.popI(), smapper.popI(),

  1094                                    ">", topMostLabel);

  1095                     break;

  1096                 case opc_if_icmpge:

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

  1098                                    ">=", topMostLabel);

  1099                     break;

  1100                 case opc_goto: {

  1101                     smapper.flush(this);

  1102                     int indx = i + readShortArg(byteCodes, i);

  1103                     goTo(this, i, indx, topMostLabel);

  1104                     i += 2;

  1105                     break;

  1106                 }

  1107                 case opc_lookupswitch: {

  1108                     i = generateLookupSwitch(i, byteCodes, smapper, topMostLabel);

  1109                     break;

  1110                 }

  1111                 case opc_tableswitch: {

  1112                     i = generateTableSwitch(i, byteCodes, smapper, topMostLabel);

  1113                     break;

  1114                 }

  1115                 case opc_invokeinterface: {

  1116                     i = invokeVirtualMethod(byteCodes, i, smapper) + 2;

  1117                     break;

  1118                 }

  1119                 case opc_invokevirtual:

  1120                     i = invokeVirtualMethod(byteCodes, i, smapper);

  1121                     break;

  1122                 case opc_invokespecial:

  1123                     i = invokeStaticMethod(byteCodes, i, smapper, false);

  1124                     break;

  1125                 case opc_invokestatic:

  1126                     i = invokeStaticMethod(byteCodes, i, smapper, true);

  1127                     break;

  1128                 case opc_invokedynamic: {

  1129                     int indx = readUShortArg(byteCodes, i);

  1130                     println("invoke dynamic: " + indx);

  1131                     ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);

  1132                     BootMethodData bm = jc.getBootMethod(c2.cpx1);

  1133                     CPX2 methodHandle = jc.getCpoolEntry(bm.method);

  1134                     println("  type: " + methodHandle.cpx1);

  1135                     String[] mi = jc.getFieldInfoName(methodHandle.cpx2);

  1136                     String mcn = mangleClassName(mi[0]);

  1137                     char[] returnType = {'V'};

  1138                     StringBuilder cnt = new StringBuilder();

  1139                     String mn = findMethodName(mi, cnt, returnType);

  1140                     StringBuilder sb = new StringBuilder();

  1141                     sb.append("We don't handle invokedynamic, need to preprocess ahead-of-time:\n");

  1142                     sb.append("  mi[0]: ").append(mi[0]).append("\n");

  1143                     sb.append("  mi[1]: ").append(mi[1]).append("\n");

  1144                     sb.append("  mi[2]: ").append(mi[2]).append("\n");

  1145                     sb.append("  mn   : ").append(mn).append("\n");

  1146                     sb.append("  name and type: ").append(jc.stringValue(c2.cpx2, true)).append("\n");

  1147                     throw new IOException(sb.toString());

  1148                     /*

  1149                     CPX2 nameAndType = jc.getCpoolEntry(c2.cpx2);

  1150                     String type = jc.StringValue(nameAndType.cpx2);

  1151                     String object = accessClass(mcn) + "(false)";

  1152                     if (mn.startsWith("cons_")) {

  1153                         object += ".constructor";

  1154                     }

  1155                     append("var metHan = ");

  1156                     append(accessStaticMethod(object, mn, mi));

  1157                     append('(');

  1158                     String lookup = accessClass("java_lang_invoke_MethodHandles") + "(false).findFor__Ljava_lang_invoke_MethodHandles$Lookup_2Ljava_lang_Class_2(CLS.$class)";

  1159                     append(lookup);

  1160                     append(", '").append(mi[1]).append("', ");

  1161                     String methodType = accessClass("java_lang_invoke_MethodType") + "(false).fromMethodDescriptorString__Ljava_lang_invoke_MethodType_2Ljava_lang_String_2Ljava_lang_ClassLoader_2(";

  1162                     append(methodType).append("'").append(type).append("', null)");

  1163 //                    if (numArguments > 0) {

  1164 //                        append(vars[0]);

  1165 //                        for (int j = 1; j < numArguments; ++j) {

  1166 //                            append(", ");

  1167 //                            append(vars[j]);

  1168 //                        }

  1169 //                    }

  1170                     append(");");

  1171                     emit(smapper, this, "throw 'Invoke dynamic: ' + @1 + ': ' + metHan;", "" + indx);

  1172                     i += 4;

  1173                     break;

  1174                     */

  1175                 }

  1176                 case opc_new: {

  1177                     int indx = readUShortArg(byteCodes, i);

  1178                     String ci = jc.getClassName(indx);

  1179                     emit(smapper, this, "var @1 = new @2;",

  1180                          smapper.pushA(), accessClass(mangleClassName(ci)));

  1181                     addReference(ci);

  1182                     i += 2;

  1183                     break;

  1184                 }

  1185                 case opc_newarray:

  1186                     int atype = readUByte(byteCodes, ++i);

  1187                     generateNewArray(atype, smapper);

  1188                     break;

  1189                 case opc_anewarray: {

  1190                     int type = readUShortArg(byteCodes, i);

  1191                     i += 2;

  1192                     generateANewArray(type, smapper);

  1193                     break;

  1194                 }

  1195                 case opc_multianewarray: {

  1196                     int type = readUShortArg(byteCodes, i);

  1197                     i += 2;

  1198                     i = generateMultiANewArray(type, byteCodes, i, smapper);

  1199                     break;

  1200                 }

  1201                 case opc_arraylength:

  1202                     smapper.replace(this, VarType.INTEGER, "(@1).length", smapper.getA(0));

  1203                     break;

  1204                 case opc_lastore:

  1205                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1206                          smapper.popL(), smapper.popI(), smapper.popA());

  1207                     break;

  1208                 case opc_fastore:

  1209                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1210                          smapper.popF(), smapper.popI(), smapper.popA());

  1211                     break;

  1212                 case opc_dastore:

  1213                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1214                          smapper.popD(), smapper.popI(), smapper.popA());

  1215                     break;

  1216                 case opc_aastore:

  1217                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1218                          smapper.popA(), smapper.popI(), smapper.popA());

  1219                     break;

  1220                 case opc_iastore:

  1221                 case opc_bastore:

  1222                 case opc_castore:

  1223                 case opc_sastore:

  1224                     emit(smapper, this, "Array.at(@3, @2, @1);",

  1225                          smapper.popI(), smapper.popI(), smapper.popA());

  1226                     break;

  1227                 case opc_laload:

  1228                     smapper.replace(this, VarType.LONG, "Array.at(@2, @1)",

  1229                          smapper.popI(), smapper.getA(0));

  1230                     break;

  1231                 case opc_faload:

  1232                     smapper.replace(this, VarType.FLOAT, "Array.at(@2, @1)",

  1233                          smapper.popI(), smapper.getA(0));

  1234                     break;

  1235                 case opc_daload:

  1236                     smapper.replace(this, VarType.DOUBLE, "Array.at(@2, @1)",

  1237                          smapper.popI(), smapper.getA(0));

  1238                     break;

  1239                 case opc_aaload:

  1240                     smapper.replace(this, VarType.REFERENCE, "Array.at(@2, @1)",

  1241                          smapper.popI(), smapper.getA(0));

  1242                     break;

  1243                 case opc_iaload:

  1244                 case opc_baload:

  1245                 case opc_caload:

  1246                 case opc_saload:

  1247                     smapper.replace(this, VarType.INTEGER, "Array.at(@2, @1)",

  1248                          smapper.popI(), smapper.getA(0));

  1249                     break;

  1250                 case opc_pop:

  1251                 case opc_pop2:

  1252                     smapper.pop(1);

  1253                     debug("/* pop */");

  1254                     break;

  1255                 case opc_dup: {

  1256                     final Variable v = smapper.get(0);

  1257                     if (smapper.isDirty()) {

  1258                         emit(smapper, this, "var @1 = @2;", smapper.pushT(v.getType()), v);

  1259                     } else {

  1260                         smapper.assign(this, v.getType(), v);

  1261                     }

  1262                     break;

  1263                 }

  1264                 case opc_dup2: {

  1265                     final Variable vi1 = smapper.get(0);

  1267                     if (vi1.isCategory2()) {

  1268                         emit(smapper, this, "var @1 = @2;",

  1269                              smapper.pushT(vi1.getType()), vi1);

  1270                     } else {

  1271                         final Variable vi2 = smapper.get(1);

  1272                         emit(smapper, this, "var @1 = @2, @3 = @4;",

  1273                              smapper.pushT(vi2.getType()), vi2,

  1274                              smapper.pushT(vi1.getType()), vi1);

  1275                     }

  1276                     break;

  1277                 }

  1278                 case opc_dup_x1: {

  1279                     final Variable vi1 = smapper.pop(this);

  1280                     final Variable vi2 = smapper.pop(this);

  1281                     final Variable vo3 = smapper.pushT(vi1.getType());

  1282                     final Variable vo2 = smapper.pushT(vi2.getType());

  1283                     final Variable vo1 = smapper.pushT(vi1.getType());

  1285                     emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1286                          vo1, vi1, vo2, vi2, vo3, vo1);

  1287                     break;

  1288                 }

  1289                 case opc_dup2_x1: {

  1290                     final Variable vi1 = smapper.pop(this);

  1291                     final Variable vi2 = smapper.pop(this);

  1293                     if (vi1.isCategory2()) {

  1294                         final Variable vo3 = smapper.pushT(vi1.getType());

  1295                         final Variable vo2 = smapper.pushT(vi2.getType());

  1296                         final Variable vo1 = smapper.pushT(vi1.getType());

  1298                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1299                              vo1, vi1, vo2, vi2, vo3, vo1);

  1300                     } else {

  1301                         final Variable vi3 = smapper.pop(this);

  1302                         final Variable vo5 = smapper.pushT(vi2.getType());

  1303                         final Variable vo4 = smapper.pushT(vi1.getType());

  1304                         final Variable vo3 = smapper.pushT(vi3.getType());

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

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

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

  1309                              vo1, vi1, vo2, vi2, vo3, vi3);

  1310                         emit(smapper, this, " @1 = @2, @3 = @4;",

  1311                              vo4, vo1, vo5, vo2);

  1312                     }

  1313                     break;

  1314                 }

  1315                 case opc_dup_x2: {

  1316                     final Variable vi1 = smapper.pop(this);

  1317                     final Variable vi2 = smapper.pop(this);

  1319                     if (vi2.isCategory2()) {

  1320                         final Variable vo3 = smapper.pushT(vi1.getType());

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

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

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

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

  1326                     } else {

  1327                         final Variable vi3 = smapper.pop(this);

  1328                         final Variable vo4 = smapper.pushT(vi1.getType());

  1329                         final Variable vo3 = smapper.pushT(vi3.getType());

  1330                         final Variable vo2 = smapper.pushT(vi2.getType());

  1331                         final Variable vo1 = smapper.pushT(vi1.getType());

  1333                         emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1334                              vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1335                     }

  1336                     break;

  1337                 }

  1338                 case opc_dup2_x2: {

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

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

  1342                     if (vi1.isCategory2()) {

  1343                         if (vi2.isCategory2()) {

  1344                             final Variable vo3 = smapper.pushT(vi1.getType());

  1345                             final Variable vo2 = smapper.pushT(vi2.getType());

  1346                             final Variable vo1 = smapper.pushT(vi1.getType());

  1348                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6;",

  1349                                  vo1, vi1, vo2, vi2, vo3, vo1);

  1350                         } else {

  1351                             final Variable vi3 = smapper.pop(this);

  1352                             final Variable vo4 = smapper.pushT(vi1.getType());

  1353                             final Variable vo3 = smapper.pushT(vi3.getType());

  1354                             final Variable vo2 = smapper.pushT(vi2.getType());

  1355                             final Variable vo1 = smapper.pushT(vi1.getType());

  1357                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8;",

  1358                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vo1);

  1359                         }

  1360                     } else {

  1361                         final Variable vi3 = smapper.pop(this);

  1363                         if (vi3.isCategory2()) {

  1364                             final Variable vo5 = smapper.pushT(vi2.getType());

  1365                             final Variable vo4 = smapper.pushT(vi1.getType());

  1366                             final Variable vo3 = smapper.pushT(vi3.getType());

  1367                             final Variable vo2 = smapper.pushT(vi2.getType());

  1368                             final Variable vo1 = smapper.pushT(vi1.getType());

  1370                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6,",

  1371                                  vo1, vi1, vo2, vi2, vo3, vi3);

  1372                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1373                                  vo4, vo1, vo5, vo2);

  1374                         } else {

  1375                             final Variable vi4 = smapper.pop(this);

  1376                             final Variable vo6 = smapper.pushT(vi2.getType());

  1377                             final Variable vo5 = smapper.pushT(vi1.getType());

  1378                             final Variable vo4 = smapper.pushT(vi4.getType());

  1379                             final Variable vo3 = smapper.pushT(vi3.getType());

  1380                             final Variable vo2 = smapper.pushT(vi2.getType());

  1381                             final Variable vo1 = smapper.pushT(vi1.getType());

  1383                             emit(smapper, this, "var @1 = @2, @3 = @4, @5 = @6, @7 = @8,",

  1384                                  vo1, vi1, vo2, vi2, vo3, vi3, vo4, vi4);

  1385                             emit(smapper, this, " @1 = @2, @3 = @4;",

  1386                                  vo5, vo1, vo6, vo2);

  1387                         }

  1388                     }

  1389                     break;

  1390                 }

  1391                 case opc_swap: {

  1392                     final Variable vi1 = smapper.get(0);

  1393                     final Variable vi2 = smapper.get(1);

  1395                     if (vi1.getType() == vi2.getType()) {

  1396                         final Variable tmp = smapper.pushT(vi1.getType());

  1398                         emit(smapper, this, "var @1 = @2, @2 = @3, @3 = @1;",

  1399                              tmp, vi1, vi2);

  1400                         smapper.pop(1);

  1401                     } else {

  1402                         smapper.pop(2);

  1403                         smapper.pushT(vi1.getType());

  1404                         smapper.pushT(vi2.getType());

  1405                     }

  1406                     break;

  1407                 }

  1408                 case opc_bipush:

  1409                     smapper.assign(this, VarType.INTEGER,

  1410                         "(" + Integer.toString(byteCodes[++i]) + ")");

  1411                     break;

  1412                 case opc_sipush:

  1413                     smapper.assign(this, VarType.INTEGER,

  1414                         "(" + Integer.toString(readShortArg(byteCodes, i)) + ")"

  1415                     );

  1416                     i += 2;

  1417                     break;

  1418                 case opc_getfield: {

  1419                     int indx = readUShortArg(byteCodes, i);

  1420                     String[] fi = jc.getFieldInfoName(indx);

  1421                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1422                     final String mangleClass = mangleClassName(fi[0]);

  1423                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1424                     smapper.replace(this, type, "@2.call(@1)",

  1425                          smapper.getA(0),

  1426                          accessField(mangleClassAccess, fi)

  1427                     );

  1428                     i += 2;

  1429                     addReference(fi[0]);

  1430                     break;

  1431                 }

  1432                 case opc_putfield: {

  1433                     int indx = readUShortArg(byteCodes, i);

  1434                     String[] fi = jc.getFieldInfoName(indx);

  1435                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1436                     final String mangleClass = mangleClassName(fi[0]);

  1437                     final String mangleClassAccess = accessClassFalse(mangleClass);

  1438                     emit(smapper, this, "@3.call(@2, @1);",

  1439                          smapper.popT(type),

  1440                          smapper.popA(),

  1441                          accessField(mangleClassAccess, fi));

  1442                     i += 2;

  1443                     addReference(fi[0]);

  1444                     break;

  1445                 }

  1446                 case opc_getstatic: {

  1447                     int indx = readUShortArg(byteCodes, i);

  1448                     String[] fi = jc.getFieldInfoName(indx);

  1449                     final int type = VarType.fromFieldType(fi[2].charAt(0));

  1450                     String ac = accessClassFalse(mangleClassName(fi[0]));

  1451                     String af = accessField(ac, fi);

  1452                     smapper.assign(this, type, af + "()");

  1453                     i += 2;

  1454                     addReference(fi[0]);

  1455                     break;

  1456                 }

  1457                 case opc_putstatic: {

  1458                     int indx = readUShortArg(byteCodes, i);

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

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

  1461                     emit(smapper, this, "@1._@2(@3);",

  1462                          accessClassFalse(mangleClassName(fi[0])), fi[1],

  1463                          smapper.popT(type));

  1464                     i += 2;

  1465                     addReference(fi[0]);

  1466                     break;

  1467                 }

  1468                 case opc_checkcast: {

  1469                     int indx = readUShortArg(byteCodes, i);

  1470                     generateCheckcast(indx, smapper);

  1471                     i += 2;

  1472                     break;

  1473                 }

  1474                 case opc_instanceof: {

  1475                     int indx = readUShortArg(byteCodes, i);

  1476                     generateInstanceOf(indx, smapper);

  1477                     i += 2;

  1478                     break;

  1479                 }

  1480                 case opc_athrow: {

  1481                     final CharSequence v = smapper.popA();

  1482                     smapper.clear();

  1484                     emit(smapper, this, "{ var @1 = @2; throw @2; }",

  1485                          smapper.pushA(), v);

  1486                     break;

  1487                 }

  1489                 case opc_monitorenter: {

  1490                     debug("/* monitor enter */");

  1491                     smapper.popA();

  1492                     break;

  1493                 }

  1495                 case opc_monitorexit: {

  1496                     debug("/* monitor exit */");

  1497                     smapper.popA();

  1498                     break;

  1499                 }

  1501                 case opc_wide:

  1502                     wide = true;

  1503                     break;

  1505                 default: {

  1506                     wide = false;

  1507                     emit(smapper, this, "throw 'unknown bytecode @1';",

  1508                          Integer.toString(c));

  1509                 }

  1510             }

  1511             if (debug(" //")) {

  1512                 generateByteCodeComment(prev, i, byteCodes);

  1513             }

  1514             if (outChanged) {

  1515                 append("\n");

  1516             }

  1517         }

  1518         if (previousTrap != null) {

  1519             generateCatch(previousTrap, byteCodes.length, topMostLabel);

  1520         }

  1521         if (didBranches) {

  1522             append("\n    }\n");

  1523         }

  1524         while (openBraces-- > 0) {

  1525             append('}');

  1526         }

  1527         if (defineProp) {

  1528             append("\n}});");

  1529         } else {

  1530             append("\n};");

  1531         }

  1532         return defineProp;

  1533     }

  1535     private int generateIf(StackMapper mapper, byte[] byteCodes,

  1536         int i, final CharSequence v2, final CharSequence v1,

  1537         final String test, int topMostLabel

  1538     ) throws IOException {

  1539         mapper.flush(this);

  1540         int indx = i + readShortArg(byteCodes, i);

  1541         append("if ((").append(v1)

  1542            .append(") ").append(test).append(" (")

  1543            .append(v2).append(")) ");

  1544         goTo(this, i, indx, topMostLabel);

  1545         return i + 2;

  1546     }

  1548     private int readInt4(byte[] byteCodes, int offset) {

  1549         final int d = byteCodes[offset + 0] << 24;

  1550         final int c = byteCodes[offset + 1] << 16;

  1551         final int b = byteCodes[offset + 2] << 8;

  1552         final int a = byteCodes[offset + 3];

  1553         return (d & 0xff000000) | (c & 0xff0000) | (b & 0xff00) | (a & 0xff);

  1554     }

  1555     private static int readUByte(byte[] byteCodes, int offset) {

  1556         return byteCodes[offset] & 0xff;

  1557     }

  1559     private static int readUShort(byte[] byteCodes, int offset) {

  1560         return ((byteCodes[offset] & 0xff) << 8)

  1561                     | (byteCodes[offset + 1] & 0xff);

  1562     }

  1563     private static int readUShortArg(byte[] byteCodes, int offsetInstruction) {

  1564         return readUShort(byteCodes, offsetInstruction + 1);

  1565     }

  1567     private static int readShort(byte[] byteCodes, int offset) {

  1568         int signed = byteCodes[offset];

  1569         byte b0 = (byte)signed;

  1570         return (b0 << 8) | (byteCodes[offset + 1] & 0xff);

  1571     }

  1572     private static int readShortArg(byte[] byteCodes, int offsetInstruction) {

  1573         return readShort(byteCodes, offsetInstruction + 1);

  1574     }

  1576     private static void countArgs(String descriptor, char[] returnType, StringBuilder sig, StringBuilder cnt) {

  1577         int i = 0;

  1578         Boolean count = null;

  1579         boolean array = false;

  1580         sig.append("__");

  1581         int firstPos = sig.length();

  1582         while (i < descriptor.length()) {

  1583             char ch = descriptor.charAt(i++);

  1584             switch (ch) {

  1585                 case '(':

  1586                     count = true;

  1587                     continue;

  1588                 case ')':

  1589                     count = false;

  1590                     continue;

  1591                 case 'B':

  1592                 case 'C':

  1593                 case 'D':

  1594                 case 'F':

  1595                 case 'I':

  1596                 case 'J':

  1597                 case 'S':

  1598                 case 'Z':

  1599                     if (count) {

  1600                         if (array) {

  1601                             sig.append("_3");

  1602                         }

  1603                         sig.append(ch);

  1604                         if (ch == 'J' || ch == 'D') {

  1605                             cnt.append('1');

  1606                         } else {

  1607                             cnt.append('0');

  1608                         }

  1609                     } else {

  1610                         sig.insert(firstPos, ch);

  1611                         if (array) {

  1612                             returnType[0] = '[';

  1613                             sig.insert(firstPos, "_3");

  1614                         } else {

  1615                             returnType[0] = ch;

  1616                         }

  1617                     }

  1618                     array = false;

  1619                     continue;

  1620                 case 'V':

  1621                     assert !count;

  1622                     returnType[0] = 'V';

  1623                     sig.insert(firstPos, 'V');

  1624                     continue;

  1625                 case 'L':

  1626                     int next = descriptor.indexOf(';', i);

  1627                     String realSig = mangleSig(descriptor, i - 1, next + 1);

  1628                     if (count) {

  1629                         if (array) {

  1630                             sig.append("_3");

  1631                         }

  1632                         sig.append(realSig);

  1633                         cnt.append('0');

  1634                     } else {

  1635                         sig.insert(firstPos, realSig);

  1636                         if (array) {

  1637                             sig.insert(firstPos, "_3");

  1638                         }

  1639                         returnType[0] = 'L';

  1640                     }

  1641                     i = next + 1;

  1642                     array = false;

  1643                     continue;

  1644                 case '[':

  1645                     array = true;

  1646                     continue;

  1647                 default:

  1648                     throw new IllegalStateException("Invalid char: " + ch);

  1649             }

  1650         }

  1651     }

  1653     static String mangleSig(String sig) {

  1654         return mangleSig(sig, 0, sig.length());

  1655     }

  1657     private static String mangleMethodName(String name) {

  1658         StringBuilder sb = new StringBuilder(name.length() * 2);

  1659         int last = name.length();

  1660         for (int i = 0; i < last; i++) {

  1661             final char ch = name.charAt(i);

  1662             switch (ch) {

  1663                 case '_': sb.append("_1"); break;

  1664                 default: sb.append(ch); break;

  1665             }

  1666         }

  1667         return sb.toString();

  1668     }

  1669     private static String mangleSig(String txt, int first, int last) {

  1670         StringBuilder sb = new StringBuilder((last - first) * 2);

  1671         for (int i = first; i < last; i++) {

  1672             final char ch = txt.charAt(i);

  1673             switch (ch) {

  1674                 case '/': sb.append('_'); break;

  1675                 case '_': sb.append("_1"); break;

  1676                 case ';': sb.append("_2"); break;

  1677                 case '[': sb.append("_3"); break;

  1678                 default:

  1679                     if (Character.isJavaIdentifierPart(ch)) {

  1680                         sb.append(ch);

  1681                     } else {

  1682                         sb.append("_0");

  1683                         String hex = Integer.toHexString(ch).toLowerCase();

  1684                         for (int m = hex.length(); m < 4; m++) {

  1685                             sb.append("0");

  1686                         }

  1687                         sb.append(hex);

  1688                     }

  1689                 break;

  1690             }

  1691         }

  1692         return sb.toString();

  1693     }

  1695     private static String mangleClassName(String name) {

  1696         return mangleSig(name);

  1697     }

  1699     private static String findMethodName(MethodData m, StringBuilder cnt) {

  1700         StringBuilder name = new StringBuilder();

  1701         if ("<init>".equals(m.getName())) { // NOI18N

  1702             name.append("cons"); // NOI18N

  1703         } else if ("<clinit>".equals(m.getName())) { // NOI18N

  1704             name.append("class"); // NOI18N

  1705         } else {

  1706             name.append(mangleMethodName(m.getName()));

  1707         }

  1709         countArgs(m.getInternalSig(), new char[1], name, cnt);

  1710         return name.toString();

  1711     }

  1713     static String findMethodName(String[] mi, StringBuilder cnt, char[] returnType) {

  1714         StringBuilder name = new StringBuilder();

  1715         String descr = mi[2];//mi.getDescriptor();

  1716         String nm= mi[1];

  1717         if ("<init>".equals(nm)) { // NOI18N

  1718             name.append("cons"); // NOI18N

  1719         } else {

  1720             name.append(mangleMethodName(nm));

  1721         }

  1722         countArgs(descr, returnType, name, cnt);

  1723         return name.toString();

  1724     }

  1726     private int invokeStaticMethod(byte[] byteCodes, int i, final StackMapper mapper, boolean isStatic)

  1727     throws IOException {

  1728         int methodIndex = readUShortArg(byteCodes, i);

  1729         String[] mi = jc.getFieldInfoName(methodIndex);

  1730         char[] returnType = { 'V' };

  1731         StringBuilder cnt = new StringBuilder();

  1732         String mn = findMethodName(mi, cnt, returnType);

  1734         final int numArguments = isStatic ? cnt.length() : cnt.length() + 1;

  1735         final CharSequence[] vars = new CharSequence[numArguments];

  1737         for (int j = numArguments - 1; j >= 0; --j) {

  1738             vars[j] = mapper.popValue();

  1739         }

  1741         if ((

  1742             "newUpdater__Ljava_util_concurrent_atomic_AtomicIntegerFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1743             && "java/util/concurrent/atomic/AtomicIntegerFieldUpdater".equals(mi[0])

  1744         ) || (

  1745             "newUpdater__Ljava_util_concurrent_atomic_AtomicLongFieldUpdater_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1746             && "java/util/concurrent/atomic/AtomicLongFieldUpdater".equals(mi[0])

  1747         )) {

  1748             if (vars[1] instanceof String) {

  1749                 String field = vars[1].toString();

  1750                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1751                     vars[1] = "c._" + field.substring(1, field.length() - 1);

  1752                 }

  1753             }

  1754         }

  1755         if (

  1756             "newUpdater__Ljava_util_concurrent_atomic_AtomicReferenceFieldUpdater_2Ljava_lang_Class_2Ljava_lang_Class_2Ljava_lang_String_2".equals(mn)

  1757             && "java/util/concurrent/atomic/AtomicReferenceFieldUpdater".equals(mi[0])

  1758         ) {

  1759             if (vars[1] instanceof String) {

  1760                 String field = vars[2].toString();

  1761                 if (field.length() > 2 && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

  1762                     vars[2] = "c._" + field.substring(1, field.length() - 1);

  1763                 }

  1764             }

  1765         }

  1767         if (returnType[0] != 'V') {

  1768             mapper.flush(this);

  1769             append("var ")

  1770                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1771                .append(" = ");

  1772         }

  1774         final String in = mi[0];

  1775         String mcn;

  1776         if (callbacks && (

  1777             in.equals("org/apidesign/html/boot/spi/Fn") ||

  1778             in.equals("org/netbeans/html/boot/spi/Fn")

  1779         )) {

  1780             mcn = "java_lang_Class";

  1781         } else {

  1782             mcn = mangleClassName(in);

  1783         }

  1784         String object = accessClassFalse(mcn);

  1785         if (mn.startsWith("cons_")) {

  1786             object += ".constructor";

  1787         }

  1788         append(accessStaticMethod(object, mn, mi));

  1789         if (isStatic) {

  1790             append('(');

  1791         } else {

  1792             append(".call(");

  1793         }

  1794         if (numArguments > 0) {

  1795             append(vars[0]);

  1796             for (int j = 1; j < numArguments; ++j) {

  1797                 append(", ");

  1798                 append(vars[j]);

  1799             }

  1800         }

  1801         append(");");

  1802         i += 2;

  1803         addReference(in);

  1804         return i;

  1805     }

  1806     private int invokeVirtualMethod(byte[] byteCodes, int i, final StackMapper mapper)

  1807     throws IOException {

  1808         int methodIndex = readUShortArg(byteCodes, i);

  1809         String[] mi = jc.getFieldInfoName(methodIndex);

  1810         char[] returnType = { 'V' };

  1811         StringBuilder cnt = new StringBuilder();

  1812         String mn = findMethodName(mi, cnt, returnType);

  1814         final int numArguments = cnt.length() + 1;

  1815         final CharSequence[] vars =  new CharSequence[numArguments];

  1817         for (int j = numArguments - 1; j >= 0; --j) {

  1818             vars[j] = mapper.popValue();

  1819         }

  1821         if (returnType[0] != 'V') {

  1822             mapper.flush(this);

  1823             append("var ")

  1824                .append(mapper.pushT(VarType.fromFieldType(returnType[0])))

  1825                .append(" = ");

  1826         }

  1828         append(accessVirtualMethod(vars[0].toString(), mn, mi, numArguments));

  1829         String sep = "";

  1830         for (int j = 1; j < numArguments; ++j) {

  1831             append(sep);

  1832             append(vars[j]);

  1833             sep = ", ";

  1834         }

  1835         append(");");

  1836         i += 2;

  1837         return i;

  1838     }

  1840     private void addReference(String cn) throws IOException {

  1841         if (requireReference(cn)) {

  1842             debug(" /* needs " + cn + " */");

  1843         }

  1844     }

  1846     private void outType(String d, StringBuilder out) {

  1847         int arr = 0;

  1848         while (d.charAt(0) == '[') {

  1849             out.append('A');

  1850             d = d.substring(1);

  1851         }

  1852         if (d.charAt(0) == 'L') {

  1853             assert d.charAt(d.length() - 1) == ';';

  1854             out.append(mangleClassName(d).substring(0, d.length() - 1));

  1855         } else {

  1856             out.append(d);

  1857         }

  1858     }

  1860     private String encodeConstant(int entryIndex) throws IOException {

  1861         String[] classRef = { null };

  1862         String s = jc.stringValue(entryIndex, classRef);

  1863         if (classRef[0] != null) {

  1864             if (classRef[0].startsWith("[")) {

  1865                 s = accessClass("java_lang_Class") + "(false)['forName__Ljava_lang_Class_2Ljava_lang_String_2']('" + classRef[0] + "')";

  1866             } else {

  1867                 addReference(classRef[0]);

  1868                 s = accessClassFalse(mangleClassName(s)) + ".constructor.$class";

  1869             }

  1870         }

  1871         return s;

  1872     }

  1874     private String javaScriptBody(String destObject, MethodData m, boolean isStatic) throws IOException {

  1875         byte[] arr = m.findAnnotationData(true);

  1876         if (arr == null) {

  1877             return null;

  1878         }

  1879         final String jvmType = "Lorg/apidesign/bck2brwsr/core/JavaScriptBody;";

  1880         final String htmlType = "Lnet/java/html/js/JavaScriptBody;";

  1881         class P extends AnnotationParser {

  1882             public P() {

  1883                 super(false, true);

  1884             }

  1886             int cnt;

  1887             String[] args = new String[30];

  1888             String body;

  1889             boolean javacall;

  1890             boolean html4j;

  1892             @Override

  1893             protected void visitAttr(String type, String attr, String at, String value) {

  1894                 if (type.equals(jvmType)) {

  1895                     if ("body".equals(attr)) {

  1896                         body = value;

  1897                     } else if ("args".equals(attr)) {

  1898                         args[cnt++] = value;

  1899                     } else {

  1900                         throw new IllegalArgumentException(attr);

  1901                     }

  1902                 }

  1903                 if (type.equals(htmlType)) {

  1904                     html4j = true;

  1905                     if ("body".equals(attr)) {

  1906                         body = value;

  1907                     } else if ("args".equals(attr)) {

  1908                         args[cnt++] = value;

  1909                     } else if ("javacall".equals(attr)) {

  1910                         javacall = "1".equals(value);

  1911                     } else if ("wait4js".equals(attr)) {

  1912                         // ignore, we always invoke synchronously

  1913                     } else {

  1914                         throw new IllegalArgumentException(attr);

  1915                     }

  1916                 }

  1917             }

  1918         }

  1919         P p = new P();

  1920         p.parse(arr, jc);

  1921         if (p.body == null) {

  1922             return null;

  1923         }

  1924         StringBuilder cnt = new StringBuilder();

  1925         final String mn = findMethodName(m, cnt);

  1926         append("m = ").append(destObject).append(".").append(mn);

  1927         append(" = function(");

  1928         String space = "";

  1929         int index = 0;

  1930         StringBuilder toValue = new StringBuilder();

  1931         for (int i = 0; i < cnt.length(); i++) {

  1932             append(space);

  1933             space = outputArg(this, p.args, index);

  1934             if (p.html4j && space.length() > 0) {

  1935                 toValue.append("\n  ").append(p.args[index]).append(" = ")

  1936                     .append(accessClass("java_lang_Class")).append("(false).toJS(").

  1937                     append(p.args[index]).append(");");

  1938             }

  1939             index++;

  1940         }

  1941         append(") {").append("\n");

  1942         append(toValue.toString());

  1943         if (p.javacall) {

  1944             int lastSlash = jc.getClassName().lastIndexOf('/');

  1945             final String pkg = jc.getClassName().substring(0, lastSlash);

  1946             append(mangleCallbacks(pkg, p.body));

  1947             requireReference(pkg + "/$JsCallbacks$");

  1948         } else {

  1949             append(p.body);

  1950         }

  1951         append("\n}\n");

  1952         return mn;

  1953     }

  1955     private static CharSequence mangleCallbacks(String pkgName, String body) {

  1956         StringBuilder sb = new StringBuilder();

  1957         int pos = 0;

  1958         for (;;) {

  1959             int next = body.indexOf(".@", pos);

  1960             if (next == -1) {

  1961                 sb.append(body.substring(pos));

  1962                 body = sb.toString();

  1963                 break;

  1964             }

  1965             int ident = next;

  1966             while (ident > 0) {

  1967                 if (!Character.isJavaIdentifierPart(body.charAt(--ident))) {

  1968                     ident++;

  1969                     break;

  1970                 }

  1971             }

  1972             String refId = body.substring(ident, next);

  1974             sb.append(body.substring(pos, ident));

  1976             int sigBeg = body.indexOf('(', next);

  1977             int sigEnd = body.indexOf(')', sigBeg);

  1978             int colon4 = body.indexOf("::", next);

  1979             if (sigBeg == -1 || sigEnd == -1 || colon4 == -1) {

  1980                 throw new IllegalStateException("Malformed body " + body);

  1981             }

  1982             String fqn = body.substring(next + 2, colon4);

  1983             String method = body.substring(colon4 + 2, sigBeg);

  1984             String params = body.substring(sigBeg, sigEnd + 1);

  1986             int paramBeg = body.indexOf('(', sigEnd + 1);

  1988             sb.append("vm.").append(mangleClassName(pkgName)).append("_$JsCallbacks$(false)._VM().");

  1989             sb.append(mangleJsCallbacks(fqn, method, params, false));

  1990             sb.append("(").append(refId);

  1991             if (body.charAt(paramBeg + 1) != ')') {

  1992                 sb.append(",");

  1993             }

  1994             pos = paramBeg + 1;

  1995         }

  1996         sb = null;

  1997         pos = 0;

  1998         for (;;) {

  1999             int next = body.indexOf("@", pos);

  2000             if (next == -1) {

  2001                 if (sb == null) {

  2002                     return body;

  2003                 }

  2004                 sb.append(body.substring(pos));

  2005                 return sb;

  2006             }

  2007             if (sb == null) {

  2008                 sb = new StringBuilder();

  2009             }

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

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

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

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

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

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

  2018             }

  2019             String fqn = body.substring(next + 1, colon4);

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

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

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

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

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

  2027             sb.append("(");

  2028             pos = paramBeg + 1;

  2029         }

  2030     }

  2032     static String mangleJsCallbacks(String fqn, String method, String params, boolean isStatic) {

  2033         if (params.startsWith("(")) {

  2034             params = params.substring(1);

  2035         }

  2036         if (params.endsWith(")")) {

  2037             params = params.substring(0, params.length() - 1);

  2038         }

  2039         StringBuilder sb = new StringBuilder();

  2040         final String fqnu = fqn.replace('.', '_');

  2041         final String rfqn = mangleClassName(fqnu);

  2042         final String rm = mangleMethodName(method);

  2043         final String srp;

  2044         {

  2045             StringBuilder pb = new StringBuilder();

  2046             int len = params.length();

  2047             int indx = 0;

  2048             while (indx < len) {

  2049                 char ch = params.charAt(indx);

  2050                 if (ch == '[' || ch == 'L') {

  2051                     int column = params.indexOf(';', indx) + 1;

  2052                     if (column > indx) {

  2053                         String real = params.substring(indx, column);

  2054                         if ("Ljava/lang/String;".equals(real)) {

  2055                             pb.append("Ljava/lang/String;");

  2056                             indx = column;

  2057                             continue;

  2058                         }

  2059                     }

  2060                     pb.append("Ljava/lang/Object;");

  2061                     indx = column;

  2062                 } else {

  2063                     pb.append(ch);

  2064                     indx++;

  2065                 }

  2066             }

  2067             srp = mangleSig(pb.toString());

  2068         }

  2069         final String rp = mangleSig(params);

  2070         final String mrp = mangleMethodName(rp);

  2071         sb.append(rfqn).append("$").append(rm).

  2072             append('$').append(mrp).append("__Ljava_lang_Object_2");

  2073         if (!isStatic) {

  2074             sb.append('L').append(fqnu).append("_2");

  2075         }

  2076         sb.append(srp);

  2077         return sb.toString();

  2078     }

  2080     private static String className(ClassData jc) {

  2081         //return jc.getName().getInternalName().replace('/', '_');

  2082         return mangleClassName(jc.getClassName());

  2083     }

  2085     private static String[] findAnnotation(

  2086         byte[] arr, ClassData cd, final String className,

  2087         final String... attrNames

  2088     ) throws IOException {

  2089         if (arr == null) {

  2090             return null;

  2091         }

  2092         final String[] values = new String[attrNames.length];

  2093         final boolean[] found = { false };

  2094         final String jvmType = "L" + className.replace('.', '/') + ";";

  2095         AnnotationParser ap = new AnnotationParser(false, true) {

  2096             @Override

  2097             protected void visitAttr(String type, String attr, String at, String value) {

  2098                 if (type.equals(jvmType)) {

  2099                     found[0] = true;

  2100                     for (int i = 0; i < attrNames.length; i++) {

  2101                         if (attrNames[i].equals(attr)) {

  2102                             values[i] = value;

  2103                         }

  2104                     }

  2105                 }

  2106             }

  2108         };

  2109         ap.parse(arr, cd);

  2110         return found[0] ? values : null;

  2111     }

  2113     private CharSequence initField(FieldData v) {

  2114         final String is = v.getInternalSig();

  2115         if (is.length() == 1) {

  2116             switch (is.charAt(0)) {

  2117                 case 'S':

  2118                 case 'J':

  2119                 case 'B':

  2120                 case 'Z':

  2121                 case 'C':

  2122                 case 'I': return " = 0;";

  2123                 case 'F':

  2124                 case 'D': return " = 0.0;";

  2125                 default:

  2126                     throw new IllegalStateException(is);

  2127             }

  2128         }

  2129         return " = null;";

  2130     }

  2132     private void generateAnno(ClassData cd, byte[] data) throws IOException {

  2133         AnnotationParser ap = new AnnotationParser(true, false) {

  2134             int[] cnt = new int[32];

  2135             int depth;

  2137             @Override

  2138             protected void visitAnnotationStart(String attrType, boolean top) throws IOException {

  2139                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2140                 requireReference(slashType);

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

  2143                     append(",");

  2144                 }

  2145                 if (top) {

  2146                     append('"').append(attrType).append("\" : ");

  2147                 }

  2148                 append("{\n");

  2149                 cnt[++depth] = 0;

  2150             }

  2152             @Override

  2153             protected void visitAnnotationEnd(String type, boolean top) throws IOException {

  2154                 append("\n}\n");

  2155                 depth--;

  2156             }

  2158             @Override

  2159             protected void visitValueStart(String attrName, char type) throws IOException {

  2160                 if (cnt[depth]++ > 0) {

  2161                     append(",\n");

  2162                 }

  2163                 cnt[++depth] = 0;

  2164                 if (attrName != null) {

  2165                     append('"').append(attrName).append("\" : ");

  2166                 }

  2167                 if (type == '[') {

  2168                     append("[");

  2169                 }

  2170             }

  2172             @Override

  2173             protected void visitValueEnd(String attrName, char type) throws IOException {

  2174                 if (type == '[') {

  2175                     append("]");

  2176                 }

  2177                 depth--;

  2178             }

  2180             @Override

  2181             protected void visitAttr(String type, String attr, String attrType, String value)

  2182             throws IOException {

  2183                 if (attr == null && value == null) {

  2184                     return;

  2185                 }

  2186                 append(value);

  2187             }

  2189             @Override

  2190             protected void visitEnumAttr(String type, String attr, String attrType, String value)

  2191             throws IOException {

  2192                 final String slashType = attrType.substring(1, attrType.length() - 1);

  2193                 requireReference(slashType);

  2195                 final String cn = mangleClassName(slashType);

  2196                 append(accessClassFalse(cn))

  2197                    .append("['valueOf__L").

  2198                     append(cn).

  2199                     append("_2Ljava_lang_String_2']('").

  2200                     append(value).

  2201                     append("')");

  2202             }

  2203         };

  2204         ap.parse(data, cd);

  2205     }

  2207     private static String outputArg(Appendable out, String[] args, int indx) throws IOException {

  2208         final String name = args[indx];

  2209         if (name == null) {

  2210             return "";

  2211         }

  2212         if (name.contains(",")) {

  2213             throw new IOException("Wrong parameter with ',': " + name);

  2214         }

  2215         out.append(name);

  2216         return ",";

  2217     }

  2219     final void emitNoFlush(

  2220         StackMapper sm,

  2221         final String format, final CharSequence... params

  2222     ) throws IOException {

  2223         emitImpl(this, format, params);

  2224     }

  2225     static final void emit(

  2226         StackMapper sm,

  2227         final Appendable out,

  2228         final String format, final CharSequence... params

  2229     ) throws IOException {

  2230         sm.flush(out);

  2231         emitImpl(out, format, params);

  2232     }

  2233     static void emitImpl(final Appendable out,

  2234                              final String format,

  2235                              final CharSequence... params) throws IOException {

  2236         final int length = format.length();

  2238         int processed = 0;

  2239         int paramOffset = format.indexOf('@');

  2240         while ((paramOffset != -1) && (paramOffset < (length - 1))) {

  2241             final char paramChar = format.charAt(paramOffset + 1);

  2242             if ((paramChar >= '1') && (paramChar <= '9')) {

  2243                 final int paramIndex = paramChar - '0' - 1;

  2245                 out.append(format, processed, paramOffset);

  2246                 out.append(params[paramIndex]);

  2248                 ++paramOffset;

  2249                 processed = paramOffset + 1;

  2250             }

  2252             paramOffset = format.indexOf('@', paramOffset + 1);

  2253         }

  2255         out.append(format, processed, length);

  2256     }

  2258     private void generateCatch(TrapData[] traps, int current, int topMostLabel) throws IOException {

  2259         append("} catch (e) {\n");

  2260         int finallyPC = -1;

  2261         for (TrapData e : traps) {

  2262             if (e == null) {

  2263                 break;

  2264             }

  2265             if (e.catch_cpx != 0) { //not finally

  2266                 final String classInternalName = jc.getClassName(e.catch_cpx);

  2267                 addReference(classInternalName);

  2268                 append("e = vm.java_lang_Class(false).bck2BrwsrThrwrbl(e);");

  2269                 append("if (e['$instOf_" + mangleClassName(classInternalName) + "']) {");

  2270                 append("var stA0 = e;");

  2271                 goTo(this, current, e.handler_pc, topMostLabel);

  2272                 append("}\n");

  2273             } else {

  2274                 finallyPC = e.handler_pc;

  2275             }

  2276         }

  2277         if (finallyPC == -1) {

  2278             append("throw e;");

  2279         } else {

  2280             append("var stA0 = e;");

  2281             goTo(this, current, finallyPC, topMostLabel);

  2282         }

  2283         append("\n}");

  2284     }

  2286     private static void goTo(Appendable out, int current, int to, int canBack) throws IOException {

  2287         if (to < current) {

  2288             if (canBack < to) {

  2289                 out.append("{ gt = 0; continue X_" + to + "; }");

  2290             } else {

  2291                 out.append("{ gt = " + to + "; continue X_0; }");

  2292             }

  2293         } else {

  2294             out.append("{ gt = " + to + "; break IF; }");

  2295         }

  2296     }

  2298     private static void emitIf(

  2299         StackMapper sm,

  2300         Appendable out, String pattern,

  2301         CharSequence param,

  2302         int current, int to, int canBack

  2303     ) throws IOException {

  2304         sm.flush(out);

  2305         emitImpl(out, pattern, param);

  2306         goTo(out, current, to, canBack);

  2307     }

  2309     private void generateNewArray(int atype, final StackMapper smapper) throws IOException, IllegalStateException {

  2310         String jvmType;

  2311         switch (atype) {

  2312             case 4: jvmType = "[Z"; break;

  2313             case 5: jvmType = "[C"; break;

  2314             case 6: jvmType = "[F"; break;

  2315             case 7: jvmType = "[D"; break;

  2316             case 8: jvmType = "[B"; break;

  2317             case 9: jvmType = "[S"; break;

  2318             case 10: jvmType = "[I"; break;

  2319             case 11: jvmType = "[J"; break;

  2320             default: throw new IllegalStateException("Array type: " + atype);

  2321         }

  2322         emit(smapper, this,

  2323             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](true, '@3', null, @1);",

  2324              smapper.popI(), smapper.pushA(), jvmType);

  2325     }

  2327     private void generateANewArray(int type, final StackMapper smapper) throws IOException {

  2328         String typeName = jc.getClassName(type);

  2329         String ref = "null";

  2330         if (typeName.startsWith("[")) {

  2331             typeName = "'[" + typeName + "'";

  2332         } else {

  2333             ref = "vm." + mangleClassName(typeName);

  2334             typeName = "'[L" + typeName + ";'";

  2335         }

  2336         emit(smapper, this,

  2337             "var @2 = Array.prototype['newArray__Ljava_lang_Object_2ZLjava_lang_String_2Ljava_lang_Object_2I'](false, @3, @4, @1);",

  2338              smapper.popI(), smapper.pushA(), typeName, ref);

  2339     }

  2341     private int generateMultiANewArray(int type, final byte[] byteCodes, int i, final StackMapper smapper) throws IOException {

  2342         String typeName = jc.getClassName(type);

  2343         int dim = readUByte(byteCodes, ++i);

  2344         StringBuilder dims = new StringBuilder();

  2345         dims.append('[');

  2346         for (int d = 0; d < dim; d++) {

  2347             if (d != 0) {

  2348                 dims.insert(1, ",");

  2349             }

  2350             dims.insert(1, smapper.popI());

  2351         }

  2352         dims.append(']');

  2353         String fn = "null";

  2354         if (typeName.charAt(dim) == 'L') {

  2355             fn = "vm." + mangleClassName(typeName.substring(dim + 1, typeName.length() - 1));

  2356         }

  2357         emit(smapper, this,

  2358             "var @2 = Array.prototype['multiNewArray__Ljava_lang_Object_2Ljava_lang_String_2_3ILjava_lang_Object_2']('@3', @1, @4);",

  2359              dims.toString(), smapper.pushA(), typeName, fn

  2360         );

  2361         return i;

  2362     }

  2364     private int generateTableSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2365         int table = i / 4 * 4 + 4;

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

  2367         table += 4;

  2368         int low = readInt4(byteCodes, table);

  2369         table += 4;

  2370         int high = readInt4(byteCodes, table);

  2371         table += 4;

  2372         final CharSequence swVar = smapper.popValue();

  2373         smapper.flush(this);

  2374         append("switch (").append(swVar).append(") {\n");

  2375         while (low <= high) {

  2376             int offset = i + readInt4(byteCodes, table);

  2377             table += 4;

  2378             append("  case " + low).append(":"); goTo(this, i, offset, topMostLabel); append('\n');

  2379             low++;

  2380         }

  2381         append("  default: ");

  2382         goTo(this, i, dflt, topMostLabel);

  2383         append("\n}");

  2384         i = table - 1;

  2385         return i;

  2386     }

  2388     private int generateLookupSwitch(int i, final byte[] byteCodes, final StackMapper smapper, int topMostLabel) throws IOException {

  2389         int table = i / 4 * 4 + 4;

  2390         int dflt = i + readInt4(byteCodes, table);

  2391         table += 4;

  2392         int n = readInt4(byteCodes, table);

  2393         table += 4;

  2394         final CharSequence swVar = smapper.popValue();

  2395         smapper.flush(this);

  2396         append("switch (").append(swVar).append(") {\n");

  2397         while (n-- > 0) {

  2398             int cnstnt = readInt4(byteCodes, table);

  2399             table += 4;

  2400             int offset = i + readInt4(byteCodes, table);

  2401             table += 4;

  2402             append("  case " + cnstnt).append(": "); goTo(this, i, offset, topMostLabel); append('\n');

  2403         }

  2404         append("  default: ");

  2405         goTo(this, i, dflt, topMostLabel);

  2406         append("\n}");

  2407         i = table - 1;

  2408         return i;

  2409     }

  2411     private void generateInstanceOf(int indx, final StackMapper smapper) throws IOException {

  2412         String type = jc.getClassName(indx);

  2413         if (!type.startsWith("[")) {

  2414             emit(smapper, this,

  2415                     "var @2 = @1 != null && @1['$instOf_@3'] ? 1 : 0;",

  2416                  smapper.popA(), smapper.pushI(),

  2417                  mangleClassName(type));

  2418         } else {

  2419             int cnt = 0;

  2420             while (type.charAt(cnt) == '[') {

  2421                 cnt++;

  2422             }

  2423             if (type.charAt(cnt) == 'L') {

  2424                 String component = type.substring(cnt + 1, type.length() - 1);

  2425                 requireReference(component);

  2426                 type = "vm." + mangleClassName(component);

  2427                 emit(smapper, this,

  2428                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @4, @3);",

  2429                     smapper.popA(), smapper.pushI(),

  2430                     type, "" + cnt

  2431                 );

  2432             } else {

  2433                 emit(smapper, this,

  2434                     "var @2 = Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@3');",

  2435                     smapper.popA(), smapper.pushI(), type

  2436                 );

  2437             }

  2438         }

  2439     }

  2441     private void generateCheckcast(int indx, final StackMapper smapper) throws IOException {

  2442         String type = jc.getClassName(indx);

  2443         if (!type.startsWith("[")) {

  2444             emitNoFlush(smapper,

  2445                  "if (@1 !== null && !@1['$instOf_@2']) vm.java_lang_Class(false).castEx();",

  2446                  smapper.getT(0, VarType.REFERENCE, false), mangleClassName(type));

  2447         } else {

  2448             int cnt = 0;

  2449             while (type.charAt(cnt) == '[') {

  2450                 cnt++;

  2451             }

  2452             if (type.charAt(cnt) == 'L') {

  2453                 String component = type.substring(cnt + 1, type.length() - 1);

  2454                 requireReference(component);

  2455                 type = "vm." + mangleClassName(component);

  2456                 emitNoFlush(smapper,

  2457                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2ILjava_lang_Object_2'](@1, @3, @2)) vm.java_lang_Class(false).castEx();",

  2458                      smapper.getT(0, VarType.REFERENCE, false), type, "" + cnt

  2459                 );

  2460             } else {

  2461                 emitNoFlush(smapper,

  2462                     "if (@1 !== null && !Array.prototype['isInstance__ZLjava_lang_Object_2Ljava_lang_String_2'](@1, '@2')) vm.java_lang_Class(false).castEx();",

  2463                      smapper.getT(0, VarType.REFERENCE, false), type

  2464                 );

  2465             }

  2466         }

  2467     }

  2469     private void generateByteCodeComment(int prev, int i, final byte[] byteCodes) throws IOException {

  2470         for (int j = prev; j <= i; j++) {

  2471             append(" ");

  2472             final int cc = readUByte(byteCodes, j);

  2473             append(Integer.toString(cc));

  2474         }

  2475     }

  2477     @JavaScriptBody(args = "msg", body = "")

  2478     private static void println(String msg) {

  2479         System.err.println(msg);

  2480     }

  2481 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Mon, 25 Jan 2016 05:14:25 +0100
changeset 1855	34efbdde4eca
parent 1840	9d011ab3c192
child 1856	9cdc403018b5
permissions	-rw-r--r--