https://lucene.apache.org/lucene-parent/lucene-core: Apache Lucene Java Core (The Apache Software Foundation) 
public final class org.apache.lucene.index.MultiBits implements org.apache.lucene.util.Bits
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.index.MultiBits
  super_class: java.lang.Object
{
  private final org.apache.lucene.util.Bits[] subs;
    descriptor: [Lorg/apache/lucene/util/Bits;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int[] starts;
    descriptor: [I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean defaultValue;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 32
            ldc Lorg/apache/lucene/index/MultiBits;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic org.apache.lucene.index.MultiBits.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>(org.apache.lucene.util.Bits[], int[], boolean);
    descriptor: ([Lorg/apache/lucene/util/Bits;[IZ)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // org.apache.lucene.index.MultiBits this
        start local 1 // org.apache.lucene.util.Bits[] subs
        start local 2 // int[] starts
        start local 3 // boolean defaultValue
         0: .line 40
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 41
            getstatic org.apache.lucene.index.MultiBits.$assertionsDisabled:Z
            ifne 2
            aload 2 /* starts */
            arraylength
            iconst_1
            aload 1 /* subs */
            arraylength
            iadd
            if_icmpeq 2
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         2: .line 42
      StackMap locals: org.apache.lucene.index.MultiBits org.apache.lucene.util.Bits[] int[] int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* subs */
            putfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
         3: .line 43
            aload 0 /* this */
            aload 2 /* starts */
            putfield org.apache.lucene.index.MultiBits.starts:[I
         4: .line 44
            aload 0 /* this */
            iload 3 /* defaultValue */
            putfield org.apache.lucene.index.MultiBits.defaultValue:Z
         5: .line 45
            return
        end local 3 // boolean defaultValue
        end local 2 // int[] starts
        end local 1 // org.apache.lucene.util.Bits[] subs
        end local 0 // org.apache.lucene.index.MultiBits this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    6     0          this  Lorg/apache/lucene/index/MultiBits;
            0    6     1          subs  [Lorg/apache/lucene/util/Bits;
            0    6     2        starts  [I
            0    6     3  defaultValue  Z
    MethodParameters:
              Name  Flags
      subs          
      starts        
      defaultValue  

  public static org.apache.lucene.util.Bits getLiveDocs(org.apache.lucene.index.IndexReader);
    descriptor: (Lorg/apache/lucene/index/IndexReader;)Lorg/apache/lucene/util/Bits;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=7, args_size=1
        start local 0 // org.apache.lucene.index.IndexReader reader
         0: .line 57
            aload 0 /* reader */
            invokevirtual org.apache.lucene.index.IndexReader.hasDeletions:()Z
            ifeq 17
         1: .line 58
            aload 0 /* reader */
            invokevirtual org.apache.lucene.index.IndexReader.leaves:()Ljava/util/List;
            astore 1 /* leaves */
        start local 1 // java.util.List leaves
         2: .line 59
            aload 1 /* leaves */
            invokeinterface java.util.List.size:()I
            istore 2 /* size */
        start local 2 // int size
         3: .line 60
            getstatic org.apache.lucene.index.MultiBits.$assertionsDisabled:Z
            ifne 4
            iload 2 /* size */
            ifgt 4
            new java.lang.AssertionError
            dup
            ldc "A reader with deletions must have at least one leave"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         4: .line 61
      StackMap locals: java.util.List int
      StackMap stack:
            iload 2 /* size */
            iconst_1
            if_icmpne 6
         5: .line 62
            aload 1 /* leaves */
            iconst_0
            invokeinterface java.util.List.get:(I)Ljava/lang/Object;
            checkcast org.apache.lucene.index.LeafReaderContext
            invokevirtual org.apache.lucene.index.LeafReaderContext.reader:()Lorg/apache/lucene/index/LeafReader;
            invokevirtual org.apache.lucene.index.LeafReader.getLiveDocs:()Lorg/apache/lucene/util/Bits;
            areturn
         6: .line 64
      StackMap locals:
      StackMap stack:
            iload 2 /* size */
            anewarray org.apache.lucene.util.Bits
            astore 3 /* liveDocs */
        start local 3 // org.apache.lucene.util.Bits[] liveDocs
         7: .line 65
            iload 2 /* size */
            iconst_1
            iadd
            newarray 10
            astore 4 /* starts */
        start local 4 // int[] starts
         8: .line 66
            iconst_0
            istore 5 /* i */
        start local 5 // int i
         9: goto 14
        10: .line 68
      StackMap locals: org.apache.lucene.util.Bits[] int[] int
      StackMap stack:
            aload 1 /* leaves */
            iload 5 /* i */
            invokeinterface java.util.List.get:(I)Ljava/lang/Object;
            checkcast org.apache.lucene.index.LeafReaderContext
            astore 6 /* ctx */
        start local 6 // org.apache.lucene.index.LeafReaderContext ctx
        11: .line 69
            aload 3 /* liveDocs */
            iload 5 /* i */
            aload 6 /* ctx */
            invokevirtual org.apache.lucene.index.LeafReaderContext.reader:()Lorg/apache/lucene/index/LeafReader;
            invokevirtual org.apache.lucene.index.LeafReader.getLiveDocs:()Lorg/apache/lucene/util/Bits;
            aastore
        12: .line 70
            aload 4 /* starts */
            iload 5 /* i */
            aload 6 /* ctx */
            getfield org.apache.lucene.index.LeafReaderContext.docBase:I
            iastore
        end local 6 // org.apache.lucene.index.LeafReaderContext ctx
        13: .line 66
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
        14: iload 5 /* i */
            iload 2 /* size */
            if_icmplt 10
        end local 5 // int i
        15: .line 72
            aload 4 /* starts */
            iload 2 /* size */
            aload 0 /* reader */
            invokevirtual org.apache.lucene.index.IndexReader.maxDoc:()I
            iastore
        16: .line 73
            new org.apache.lucene.index.MultiBits
            dup
            aload 3 /* liveDocs */
            aload 4 /* starts */
            iconst_1
            invokespecial org.apache.lucene.index.MultiBits.<init>:([Lorg/apache/lucene/util/Bits;[IZ)V
            areturn
        end local 4 // int[] starts
        end local 3 // org.apache.lucene.util.Bits[] liveDocs
        end local 2 // int size
        end local 1 // java.util.List leaves
        17: .line 75
      StackMap locals: org.apache.lucene.index.IndexReader
      StackMap stack:
            aconst_null
            areturn
        end local 0 // org.apache.lucene.index.IndexReader reader
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   18     0    reader  Lorg/apache/lucene/index/IndexReader;
            2   17     1    leaves  Ljava/util/List<Lorg/apache/lucene/index/LeafReaderContext;>;
            3   17     2      size  I
            7   17     3  liveDocs  [Lorg/apache/lucene/util/Bits;
            8   17     4    starts  [I
            9   15     5         i  I
           11   13     6       ctx  Lorg/apache/lucene/index/LeafReaderContext;
    MethodParameters:
        Name  Flags
      reader  

  private boolean checkLength(int, int);
    descriptor: (II)Z
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=4, args_size=3
        start local 0 // org.apache.lucene.index.MultiBits this
        start local 1 // int reader
        start local 2 // int doc
         0: .line 80
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iconst_1
            iload 1 /* reader */
            iadd
            iaload
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iload 1 /* reader */
            iaload
            isub
            istore 3 /* length */
        start local 3 // int length
         1: .line 81
            getstatic org.apache.lucene.index.MultiBits.$assertionsDisabled:Z
            ifne 2
            iload 2 /* doc */
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iload 1 /* reader */
            iaload
            isub
            iload 3 /* length */
            if_icmplt 2
            new java.lang.AssertionError
            dup
            new java.lang.StringBuilder
            dup
            ldc "doc="
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 2 /* doc */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " reader="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            iload 1 /* reader */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " starts[reader]="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iload 1 /* reader */
            iaload
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " length="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            iload 3 /* length */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         2: .line 82
      StackMap locals: int
      StackMap stack:
            iconst_1
            ireturn
        end local 3 // int length
        end local 2 // int doc
        end local 1 // int reader
        end local 0 // org.apache.lucene.index.MultiBits this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/apache/lucene/index/MultiBits;
            0    3     1  reader  I
            0    3     2     doc  I
            1    3     3  length  I
    MethodParameters:
        Name  Flags
      reader  
      doc     

  public boolean get(int);
    descriptor: (I)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // org.apache.lucene.index.MultiBits this
        start local 1 // int doc
         0: .line 87
            iload 1 /* doc */
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            invokestatic org.apache.lucene.index.ReaderUtil.subIndex:(I[I)I
            istore 2 /* reader */
        start local 2 // int reader
         1: .line 88
            getstatic org.apache.lucene.index.MultiBits.$assertionsDisabled:Z
            ifne 2
            iload 2 /* reader */
            iconst_m1
            if_icmpne 2
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         2: .line 89
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            iload 2 /* reader */
            aaload
            astore 3 /* bits */
        start local 3 // org.apache.lucene.util.Bits bits
         3: .line 90
            aload 3 /* bits */
            ifnonnull 5
         4: .line 91
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.defaultValue:Z
            ireturn
         5: .line 93
      StackMap locals: org.apache.lucene.util.Bits
      StackMap stack:
            getstatic org.apache.lucene.index.MultiBits.$assertionsDisabled:Z
            ifne 6
            aload 0 /* this */
            iload 2 /* reader */
            iload 1 /* doc */
            invokevirtual org.apache.lucene.index.MultiBits.checkLength:(II)Z
            ifne 6
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         6: .line 94
      StackMap locals:
      StackMap stack:
            aload 3 /* bits */
            iload 1 /* doc */
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iload 2 /* reader */
            iaload
            isub
            invokeinterface org.apache.lucene.util.Bits.get:(I)Z
            ireturn
        end local 3 // org.apache.lucene.util.Bits bits
        end local 2 // int reader
        end local 1 // int doc
        end local 0 // org.apache.lucene.index.MultiBits this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0    this  Lorg/apache/lucene/index/MultiBits;
            0    7     1     doc  I
            1    7     2  reader  I
            3    7     3    bits  Lorg/apache/lucene/util/Bits;
    MethodParameters:
      Name  Flags
      doc   

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // org.apache.lucene.index.MultiBits this
         0: .line 100
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 1 /* b */
        start local 1 // java.lang.StringBuilder b
         1: .line 101
            aload 1 /* b */
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            arraylength
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " subs: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         2: .line 102
            iconst_0
            istore 2 /* i */
        start local 2 // int i
         3: goto 11
         4: .line 103
      StackMap locals: java.lang.StringBuilder int
      StackMap stack:
            iload 2 /* i */
            ifeq 6
         5: .line 104
            aload 1 /* b */
            ldc "; "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         6: .line 106
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            iload 2 /* i */
            aaload
            ifnonnull 9
         7: .line 107
            aload 1 /* b */
            ldc "s="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iload 2 /* i */
            iaload
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " l=null"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         8: .line 108
            goto 10
         9: .line 109
      StackMap locals:
      StackMap stack:
            aload 1 /* b */
            ldc "s="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            iload 2 /* i */
            iaload
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " l="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            iload 2 /* i */
            aaload
            invokeinterface org.apache.lucene.util.Bits.length:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " b="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            iload 2 /* i */
            aaload
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
        10: .line 102
      StackMap locals:
      StackMap stack:
            iinc 2 /* i */ 1
      StackMap locals:
      StackMap stack:
        11: iload 2 /* i */
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            arraylength
            if_icmplt 4
        end local 2 // int i
        12: .line 112
            aload 1 /* b */
            ldc " end="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.subs:[Lorg/apache/lucene/util/Bits;
            arraylength
            iaload
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            pop
        13: .line 113
            aload 1 /* b */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.StringBuilder b
        end local 0 // org.apache.lucene.index.MultiBits this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   14     0  this  Lorg/apache/lucene/index/MultiBits;
            1   14     1     b  Ljava/lang/StringBuilder;
            3   12     2     i  I

  public int length();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.MultiBits this
         0: .line 118
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            aload 0 /* this */
            getfield org.apache.lucene.index.MultiBits.starts:[I
            arraylength
            iconst_1
            isub
            iaload
            ireturn
        end local 0 // org.apache.lucene.index.MultiBits this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/index/MultiBits;
}
SourceFile: "MultiBits.java"