src/share/classes/com/sun/tools/javap/AttributeWriter.java

Sat, 17 Nov 2012 19:01:03 +0000

author
mcimadamore
date
Sat, 17 Nov 2012 19:01:03 +0000
changeset 1415
01c9d4161882
parent 826
5cf6c432ef2f
child 1473
31780dd06ec7
permissions
-rw-r--r--

8003280: Add lambda tests
Summary: Turn on lambda expression, method reference and default method support
Reviewed-by: jjg

     1 /*
     2  * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 package com.sun.tools.javap;
    28 import java.util.Formatter;
    30 import com.sun.tools.classfile.AccessFlags;
    31 import com.sun.tools.classfile.AnnotationDefault_attribute;
    32 import com.sun.tools.classfile.Attribute;
    33 import com.sun.tools.classfile.Attributes;
    34 import com.sun.tools.classfile.BootstrapMethods_attribute;
    35 import com.sun.tools.classfile.CharacterRangeTable_attribute;
    36 import com.sun.tools.classfile.Code_attribute;
    37 import com.sun.tools.classfile.CompilationID_attribute;
    38 import com.sun.tools.classfile.ConstantPool;
    39 import com.sun.tools.classfile.ConstantPoolException;
    40 import com.sun.tools.classfile.ConstantValue_attribute;
    41 import com.sun.tools.classfile.DefaultAttribute;
    42 import com.sun.tools.classfile.Deprecated_attribute;
    43 import com.sun.tools.classfile.EnclosingMethod_attribute;
    44 import com.sun.tools.classfile.Exceptions_attribute;
    45 import com.sun.tools.classfile.InnerClasses_attribute;
    46 import com.sun.tools.classfile.LineNumberTable_attribute;
    47 import com.sun.tools.classfile.LocalVariableTable_attribute;
    48 import com.sun.tools.classfile.LocalVariableTypeTable_attribute;
    49 import com.sun.tools.classfile.RuntimeInvisibleAnnotations_attribute;
    50 import com.sun.tools.classfile.RuntimeInvisibleParameterAnnotations_attribute;
    51 import com.sun.tools.classfile.RuntimeVisibleAnnotations_attribute;
    52 import com.sun.tools.classfile.RuntimeVisibleParameterAnnotations_attribute;
    53 import com.sun.tools.classfile.Signature_attribute;
    54 import com.sun.tools.classfile.SourceDebugExtension_attribute;
    55 import com.sun.tools.classfile.SourceFile_attribute;
    56 import com.sun.tools.classfile.SourceID_attribute;
    57 import com.sun.tools.classfile.StackMapTable_attribute;
    58 import com.sun.tools.classfile.StackMap_attribute;
    59 import com.sun.tools.classfile.Synthetic_attribute;
    61 import static com.sun.tools.classfile.AccessFlags.*;
    63 /*
    64  *  A writer for writing Attributes as text.
    65  *
    66  *  <p><b>This is NOT part of any supported API.
    67  *  If you write code that depends on this, you do so at your own risk.
    68  *  This code and its internal interfaces are subject to change or
    69  *  deletion without notice.</b>
    70  */
    71 public class AttributeWriter extends BasicWriter
    72         implements Attribute.Visitor<Void,Void>
    73 {
    74     public static AttributeWriter instance(Context context) {
    75         AttributeWriter instance = context.get(AttributeWriter.class);
    76         if (instance == null)
    77             instance = new AttributeWriter(context);
    78         return instance;
    79     }
    81     protected AttributeWriter(Context context) {
    82         super(context);
    83         context.put(AttributeWriter.class, this);
    84         annotationWriter = AnnotationWriter.instance(context);
    85         codeWriter = CodeWriter.instance(context);
    86         constantWriter = ConstantWriter.instance(context);
    87         options = Options.instance(context);
    88     }
    90     public void write(Object owner, Attribute attr, ConstantPool constant_pool) {
    91         if (attr != null) {
    92             // null checks
    93             owner.getClass();
    94             constant_pool.getClass();
    95             this.constant_pool = constant_pool;
    96             this.owner = owner;
    97             attr.accept(this, null);
    98         }
    99     }
   101     public void write(Object owner, Attributes attrs, ConstantPool constant_pool) {
   102         if (attrs != null) {
   103             // null checks
   104             owner.getClass();
   105             constant_pool.getClass();
   106             this.constant_pool = constant_pool;
   107             this.owner = owner;
   108             for (Attribute attr: attrs)
   109                 attr.accept(this, null);
   110         }
   111     }
   113     public Void visitDefault(DefaultAttribute attr, Void ignore) {
   114         byte[] data = attr.info;
   115         int i = 0;
   116         int j = 0;
   117         print("  ");
   118         try {
   119             print(attr.getName(constant_pool));
   120         } catch (ConstantPoolException e) {
   121             report(e);
   122             print("attribute name = #" + attr.attribute_name_index);
   123         }
   124         print(": ");
   125         println("length = 0x" + toHex(attr.info.length));
   127         print("   ");
   129         while (i < data.length) {
   130             print(toHex(data[i], 2));
   132             j++;
   133             if (j == 16) {
   134                 println();
   135                 print("   ");
   136                 j = 0;
   137             } else {
   138                 print(" ");
   139             }
   140             i++;
   141         }
   142         println();
   143         return null;
   144     }
   146     public Void visitAnnotationDefault(AnnotationDefault_attribute attr, Void ignore) {
   147         println("AnnotationDefault:");
   148         indent(+1);
   149         print("default_value: ");
   150         annotationWriter.write(attr.default_value);
   151         indent(-1);
   152         return null;
   153     }
   155     public Void visitBootstrapMethods(BootstrapMethods_attribute attr, Void p) {
   156         println(Attribute.BootstrapMethods + ":");
   157         for (int i = 0; i < attr.bootstrap_method_specifiers.length ; i++) {
   158             BootstrapMethods_attribute.BootstrapMethodSpecifier bsm = attr.bootstrap_method_specifiers[i];
   159             indent(+1);
   160             print(i + ": #" + bsm.bootstrap_method_ref + " ");
   161             println(constantWriter.stringValue(bsm.bootstrap_method_ref));
   162             indent(+1);
   163             println("Method arguments:");
   164             indent(+1);
   165             for (int j = 0; j < bsm.bootstrap_arguments.length; j++) {
   166                 print("#" + bsm.bootstrap_arguments[j] + " ");
   167                 println(constantWriter.stringValue(bsm.bootstrap_arguments[j]));
   168             }
   169             indent(-3);
   170         }
   171         return null;
   172     }
   174     public Void visitCharacterRangeTable(CharacterRangeTable_attribute attr, Void ignore) {
   175         println("CharacterRangeTable:");
   176         indent(+1);
   177         for (int i = 0; i < attr.character_range_table.length; i++) {
   178             CharacterRangeTable_attribute.Entry e = attr.character_range_table[i];
   179             print(String.format("    %2d, %2d, %6x, %6x, %4x",
   180                     e.start_pc, e.end_pc,
   181                     e.character_range_start, e.character_range_end,
   182                     e.flags));
   183             tab();
   184             print(String.format("// %2d, %2d, %4d:%02d, %4d:%02d",
   185                     e.start_pc, e.end_pc,
   186                     (e.character_range_start >> 10), (e.character_range_start & 0x3ff),
   187                     (e.character_range_end >> 10), (e.character_range_end & 0x3ff)));
   188             if ((e.flags & CharacterRangeTable_attribute.CRT_STATEMENT) != 0)
   189                 print(", statement");
   190             if ((e.flags & CharacterRangeTable_attribute.CRT_BLOCK) != 0)
   191                 print(", block");
   192             if ((e.flags & CharacterRangeTable_attribute.CRT_ASSIGNMENT) != 0)
   193                 print(", assignment");
   194             if ((e.flags & CharacterRangeTable_attribute.CRT_FLOW_CONTROLLER) != 0)
   195                 print(", flow-controller");
   196             if ((e.flags & CharacterRangeTable_attribute.CRT_FLOW_TARGET) != 0)
   197                 print(", flow-target");
   198             if ((e.flags & CharacterRangeTable_attribute.CRT_INVOKE) != 0)
   199                 print(", invoke");
   200             if ((e.flags & CharacterRangeTable_attribute.CRT_CREATE) != 0)
   201                 print(", create");
   202             if ((e.flags & CharacterRangeTable_attribute.CRT_BRANCH_TRUE) != 0)
   203                 print(", branch-true");
   204             if ((e.flags & CharacterRangeTable_attribute.CRT_BRANCH_FALSE) != 0)
   205                 print(", branch-false");
   206             println();
   207         }
   208         indent(-1);
   209         return null;
   210     }
   212     public Void visitCode(Code_attribute attr, Void ignore) {
   213         codeWriter.write(attr, constant_pool);
   214         return null;
   215     }
   217     public Void visitCompilationID(CompilationID_attribute attr, Void ignore) {
   218         constantWriter.write(attr.compilationID_index);
   219         return null;
   220     }
   222     public Void visitConstantValue(ConstantValue_attribute attr, Void ignore) {
   223         if (options.compat) // BUG 6622216 javap names some attributes incorrectly
   224             print("Constant value: ");
   225         else
   226             print("ConstantValue: ");
   227         constantWriter.write(attr.constantvalue_index);
   228         println();
   229         return null;
   230     }
   232     public Void visitDeprecated(Deprecated_attribute attr, Void ignore) {
   233         println("Deprecated: true");
   234         return null;
   235     }
   237     public Void visitEnclosingMethod(EnclosingMethod_attribute attr, Void ignore) {
   238         print("EnclosingMethod: #" + attr.class_index + ".#" + attr.method_index);
   239         tab();
   240         print("// " + getJavaClassName(attr));
   241         if (attr.method_index != 0)
   242             print("." + getMethodName(attr));
   243         println();
   244         return null;
   245     }
   247     private String getJavaClassName(EnclosingMethod_attribute a) {
   248         try {
   249             return getJavaName(a.getClassName(constant_pool));
   250         } catch (ConstantPoolException e) {
   251             return report(e);
   252         }
   253     }
   255     private String getMethodName(EnclosingMethod_attribute a) {
   256         try {
   257             return a.getMethodName(constant_pool);
   258         } catch (ConstantPoolException e) {
   259             return report(e);
   260         }
   261     }
   263     public Void visitExceptions(Exceptions_attribute attr, Void ignore) {
   264         println("Exceptions:");
   265         indent(+1);
   266         print("throws ");
   267         for (int i = 0; i < attr.number_of_exceptions; i++) {
   268             if (i > 0)
   269                 print(", ");
   270             print(getJavaException(attr, i));
   271         }
   272         println();
   273         indent(-1);
   274         return null;
   275     }
   277     private String getJavaException(Exceptions_attribute attr, int index) {
   278         try {
   279             return getJavaName(attr.getException(index, constant_pool));
   280         } catch (ConstantPoolException e) {
   281             return report(e);
   282         }
   283     }
   285     public Void visitInnerClasses(InnerClasses_attribute attr, Void ignore) {
   286         boolean first = true;
   287         if (options.compat) {
   288             writeInnerClassHeader();
   289             first = false;
   290         }
   291         for (int i = 0 ; i < attr.classes.length; i++) {
   292             InnerClasses_attribute.Info info = attr.classes[i];
   293             //access
   294             AccessFlags access_flags = info.inner_class_access_flags;
   295             if (options.compat) {
   296                 // BUG 6622215: javap ignores certain relevant access flags
   297                 access_flags = access_flags.ignore(ACC_STATIC | ACC_PROTECTED | ACC_PRIVATE | ACC_INTERFACE | ACC_SYNTHETIC | ACC_ENUM);
   298                 // BUG 6622232: javap gets whitespace confused
   299                 print("   ");
   300             }
   301             if (options.checkAccess(access_flags)) {
   302                 if (first) {
   303                     writeInnerClassHeader();
   304                     first = false;
   305                 }
   306                 print("   ");
   307                 for (String name: access_flags.getInnerClassModifiers())
   308                     print(name + " ");
   309                 if (info.inner_name_index!=0) {
   310                     print("#" + info.inner_name_index + "= ");
   311                 }
   312                 print("#" + info.inner_class_info_index);
   313                 if (info.outer_class_info_index != 0) {
   314                     print(" of #" + info.outer_class_info_index);
   315                 }
   316                 print("; //");
   317                 if (info.inner_name_index != 0) {
   318                     print(getInnerName(constant_pool, info) + "=");
   319                 }
   320                 constantWriter.write(info.inner_class_info_index);
   321                 if (info.outer_class_info_index != 0) {
   322                     print(" of ");
   323                     constantWriter.write(info.outer_class_info_index);
   324                 }
   325                 println();
   326             }
   327         }
   328         if (!first)
   329             indent(-1);
   330         return null;
   331     }
   333     String getInnerName(ConstantPool constant_pool, InnerClasses_attribute.Info info) {
   334         try {
   335             return info.getInnerName(constant_pool);
   336         } catch (ConstantPoolException e) {
   337             return report(e);
   338         }
   339     }
   341     private void writeInnerClassHeader() {
   342         if (options.compat) // BUG 6622216: javap names some attributes incorrectly
   343             print("InnerClass");
   344         else
   345             print("InnerClasses");
   346         println(":");
   347         indent(+1);
   348     }
   350     public Void visitLineNumberTable(LineNumberTable_attribute attr, Void ignore) {
   351         println("LineNumberTable:");
   352         indent(+1);
   353         for (LineNumberTable_attribute.Entry entry: attr.line_number_table) {
   354             println("line " + entry.line_number + ": " + entry.start_pc);
   355         }
   356         indent(-1);
   357         return null;
   358     }
   360     public Void visitLocalVariableTable(LocalVariableTable_attribute attr, Void ignore) {
   361         println("LocalVariableTable:");
   362         indent(+1);
   363         println("Start  Length  Slot  Name   Signature");
   364         for (LocalVariableTable_attribute.Entry entry : attr.local_variable_table) {
   365             Formatter formatter = new Formatter();
   366             println(formatter.format("%8d %7d %5d %5s   %s",
   367                     entry.start_pc, entry.length, entry.index,
   368                     constantWriter.stringValue(entry.name_index),
   369                     constantWriter.stringValue(entry.descriptor_index)));
   370         }
   371         indent(-1);
   372         return null;
   373     }
   375     public Void visitLocalVariableTypeTable(LocalVariableTypeTable_attribute attr, Void ignore) {
   376         println("LocalVariableTypeTable:");
   377         indent(+1);
   378         println("Start  Length  Slot  Name   Signature");
   379         for (LocalVariableTypeTable_attribute.Entry entry : attr.local_variable_table) {
   380             println(String.format("%5d %7d %5d %5s   %s",
   381                     entry.start_pc, entry.length, entry.index,
   382                     constantWriter.stringValue(entry.name_index),
   383                     constantWriter.stringValue(entry.signature_index)));
   384         }
   385         indent(-1);
   386         return null;
   387     }
   389     public Void visitRuntimeVisibleAnnotations(RuntimeVisibleAnnotations_attribute attr, Void ignore) {
   390         println("RuntimeVisibleAnnotations:");
   391         indent(+1);
   392         for (int i = 0; i < attr.annotations.length; i++) {
   393             print(i + ": ");
   394             annotationWriter.write(attr.annotations[i]);
   395             println();
   396         }
   397         indent(-1);
   398         return null;
   399     }
   401     public Void visitRuntimeInvisibleAnnotations(RuntimeInvisibleAnnotations_attribute attr, Void ignore) {
   402         println("RuntimeInvisibleAnnotations:");
   403         indent(+1);
   404         for (int i = 0; i < attr.annotations.length; i++) {
   405             print(i + ": ");
   406             annotationWriter.write(attr.annotations[i]);
   407             println();
   408         }
   409         indent(-1);
   410         return null;
   411     }
   413     public Void visitRuntimeVisibleParameterAnnotations(RuntimeVisibleParameterAnnotations_attribute attr, Void ignore) {
   414         println("RuntimeVisibleParameterAnnotations:");
   415         indent(+1);
   416         for (int param = 0; param < attr.parameter_annotations.length; param++) {
   417             println("parameter " + param + ": ");
   418             indent(+1);
   419             for (int i = 0; i < attr.parameter_annotations[param].length; i++) {
   420                 print(i + ": ");
   421                 annotationWriter.write(attr.parameter_annotations[param][i]);
   422                 println();
   423             }
   424             indent(-1);
   425         }
   426         indent(-1);
   427         return null;
   428     }
   430     public Void visitRuntimeInvisibleParameterAnnotations(RuntimeInvisibleParameterAnnotations_attribute attr, Void ignore) {
   431         println("RuntimeInvisibleParameterAnnotations:");
   432         indent(+1);
   433         for (int param = 0; param < attr.parameter_annotations.length; param++) {
   434             println(param + ": ");
   435             indent(+1);
   436             for (int i = 0; i < attr.parameter_annotations[param].length; i++) {
   437                 print(i + ": ");
   438                 annotationWriter.write(attr.parameter_annotations[param][i]);
   439                 println();
   440             }
   441             indent(-1);
   442         }
   443         indent(-1);
   444         return null;
   445     }
   447     public Void visitSignature(Signature_attribute attr, Void ignore) {
   448         print("Signature: #" + attr.signature_index);
   449         tab();
   450         println("// " + getSignature(attr));
   451         return null;
   452     }
   454     String getSignature(Signature_attribute info) {
   455         try {
   456             return info.getSignature(constant_pool);
   457         } catch (ConstantPoolException e) {
   458             return report(e);
   459         }
   460     }
   462     public Void visitSourceDebugExtension(SourceDebugExtension_attribute attr, Void ignore) {
   463         println("SourceDebugExtension: " + attr.getValue());
   464         return null;
   465     }
   467     public Void visitSourceFile(SourceFile_attribute attr, Void ignore) {
   468         println("SourceFile: \"" + getSourceFile(attr) + "\"");
   469         return null;
   470     }
   472     private String getSourceFile(SourceFile_attribute attr) {
   473         try {
   474             return attr.getSourceFile(constant_pool);
   475         } catch (ConstantPoolException e) {
   476             return report(e);
   477         }
   478     }
   480     public Void visitSourceID(SourceID_attribute attr, Void ignore) {
   481         constantWriter.write(attr.sourceID_index);
   482         return null;
   483     }
   485     public Void visitStackMap(StackMap_attribute attr, Void ignore) {
   486         println("StackMap: number_of_entries = " + attr.number_of_entries);
   487         indent(+1);
   488         StackMapTableWriter w = new StackMapTableWriter();
   489         for (StackMapTable_attribute.stack_map_frame entry : attr.entries) {
   490             w.write(entry);
   491         }
   492         println();
   493         indent(-1);
   494         return null;
   495     }
   497     public Void visitStackMapTable(StackMapTable_attribute attr, Void ignore) {
   498         println("StackMapTable: number_of_entries = " + attr.number_of_entries);
   499         indent(+1);
   500         StackMapTableWriter w = new StackMapTableWriter();
   501         for (StackMapTable_attribute.stack_map_frame entry : attr.entries) {
   502             w.write(entry);
   503         }
   504         println();
   505         indent(-1);
   506         return null;
   507     }
   509     class StackMapTableWriter // also handles CLDC StackMap attributes
   510             implements StackMapTable_attribute.stack_map_frame.Visitor<Void,Void> {
   511         public void write(StackMapTable_attribute.stack_map_frame frame) {
   512             frame.accept(this, null);
   513         }
   515         public Void visit_same_frame(StackMapTable_attribute.same_frame frame, Void p) {
   516             printHeader(frame);
   517             println(" /* same */");
   518             return null;
   519         }
   521         public Void visit_same_locals_1_stack_item_frame(StackMapTable_attribute.same_locals_1_stack_item_frame frame, Void p) {
   522             printHeader(frame);
   523             println(" /* same_locals_1_stack_item */");
   524             indent(+1);
   525             printMap("stack", frame.stack);
   526             indent(-1);
   527             return null;
   528         }
   530         public Void visit_same_locals_1_stack_item_frame_extended(StackMapTable_attribute.same_locals_1_stack_item_frame_extended frame, Void p) {
   531             printHeader(frame);
   532             println(" /* same_locals_1_stack_item_frame_extended */");
   533             indent(+1);
   534             println("offset_delta = " + frame.offset_delta);
   535             printMap("stack", frame.stack);
   536             indent(-1);
   537             return null;
   538         }
   540         public Void visit_chop_frame(StackMapTable_attribute.chop_frame frame, Void p) {
   541             printHeader(frame);
   542             println(" /* chop */");
   543             indent(+1);
   544             println("offset_delta = " + frame.offset_delta);
   545             indent(-1);
   546             return null;
   547         }
   549         public Void visit_same_frame_extended(StackMapTable_attribute.same_frame_extended frame, Void p) {
   550             printHeader(frame);
   551             println(" /* same_frame_extended */");
   552             indent(+1);
   553             println("offset_delta = " + frame.offset_delta);
   554             indent(-1);
   555             return null;
   556         }
   558         public Void visit_append_frame(StackMapTable_attribute.append_frame frame, Void p) {
   559             printHeader(frame);
   560             println(" /* append */");
   561             println("     offset_delta = " + frame.offset_delta);
   562             printMap("locals", frame.locals);
   563             return null;
   564         }
   566         public Void visit_full_frame(StackMapTable_attribute.full_frame frame, Void p) {
   567             printHeader(frame);
   568             if (frame instanceof StackMap_attribute.stack_map_frame) {
   569                 indent(+1);
   570                 println(" offset = " + frame.offset_delta);
   571             } else {
   572                 println(" /* full_frame */");
   573                 indent(+1);
   574                 println("offset_delta = " + frame.offset_delta);
   575             }
   576             printMap("locals", frame.locals);
   577             printMap("stack", frame.stack);
   578             indent(-1);
   579             return null;
   580         }
   582         void printHeader(StackMapTable_attribute.stack_map_frame frame) {
   583             print("   frame_type = " + frame.frame_type);
   584         }
   586         void printMap(String name, StackMapTable_attribute.verification_type_info[] map) {
   587             print(name + " = [");
   588             for (int i = 0; i < map.length; i++) {
   589                 StackMapTable_attribute.verification_type_info info = map[i];
   590                 int tag = info.tag;
   591                 switch (tag) {
   592                     case StackMapTable_attribute.verification_type_info.ITEM_Object:
   593                         print(" ");
   594                         constantWriter.write(((StackMapTable_attribute.Object_variable_info) info).cpool_index);
   595                         break;
   596                     case StackMapTable_attribute.verification_type_info.ITEM_Uninitialized:
   597                         print(" " + mapTypeName(tag));
   598                         print(" " + ((StackMapTable_attribute.Uninitialized_variable_info) info).offset);
   599                         break;
   600                     default:
   601                         print(" " + mapTypeName(tag));
   602                 }
   603                 print(i == (map.length - 1) ? " " : ",");
   604             }
   605             println("]");
   606         }
   608         String mapTypeName(int tag) {
   609             switch (tag) {
   610             case StackMapTable_attribute.verification_type_info.ITEM_Top:
   611                 return "top";
   613             case StackMapTable_attribute.verification_type_info.ITEM_Integer:
   614                 return "int";
   616             case StackMapTable_attribute.verification_type_info.ITEM_Float:
   617                 return "float";
   619             case StackMapTable_attribute.verification_type_info.ITEM_Long:
   620                 return "long";
   622             case StackMapTable_attribute.verification_type_info.ITEM_Double:
   623                 return "double";
   625             case StackMapTable_attribute.verification_type_info.ITEM_Null:
   626                 return "null";
   628             case StackMapTable_attribute.verification_type_info.ITEM_UninitializedThis:
   629                 return "this";
   631             case StackMapTable_attribute.verification_type_info.ITEM_Object:
   632                 return "CP";
   634             case StackMapTable_attribute.verification_type_info.ITEM_Uninitialized:
   635                 return "uninitialized";
   637             default:
   638                 report("unrecognized verification_type_info tag: " + tag);
   639                 return "[tag:" + tag + "]";
   640             }
   641         }
   642     }
   644     public Void visitSynthetic(Synthetic_attribute attr, Void ignore) {
   645         println("Synthetic: true");
   646         return null;
   647     }
   649     static String getJavaName(String name) {
   650         return name.replace('/', '.');
   651     }
   653     String toHex(byte b, int w) {
   654         if (options.compat) // BUG 6622260: javap prints negative bytes incorrectly in hex
   655             return toHex((int) b, w);
   656         else
   657             return toHex(b & 0xff, w);
   658     }
   660     static String toHex(int i) {
   661         return Integer.toString(i, 16).toUpperCase();
   662     }
   664     static String toHex(int i, int w) {
   665         String s = Integer.toHexString(i).toUpperCase();
   666         while (s.length() < w)
   667             s = "0" + s;
   668         return s.toUpperCase();
   669     }
   671     private AnnotationWriter annotationWriter;
   672     private CodeWriter codeWriter;
   673     private ConstantWriter constantWriter;
   674     private Options options;
   676     private ConstantPool constant_pool;
   677     private Object owner;
   678 }

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