http://lucene.apache.org/lucene-parent/lucene-queryparser: Lucene QueryParsers module (The Apache Software Foundation) 
public final class org.apache.lucene.queryparser.classic.FastCharStream implements org.apache.lucene.queryparser.classic.CharStream
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.queryparser.classic.FastCharStream
  super_class: java.lang.Object
{
  char[] buffer;
    descriptor: [C
    flags: (0x0000) 

  int bufferLength;
    descriptor: I
    flags: (0x0000) 

  int bufferPosition;
    descriptor: I
    flags: (0x0000) 

  int tokenStart;
    descriptor: I
    flags: (0x0000) 

  int bufferStart;
    descriptor: I
    flags: (0x0000) 

  java.io.Reader input;
    descriptor: Ljava/io/Reader;
    flags: (0x0000) 

  public void <init>(java.io.Reader);
    descriptor: (Ljava/io/Reader;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
        start local 1 // java.io.Reader r
         0: .line 38
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 27
            aload 0 /* this */
            aconst_null
            putfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
         2: .line 29
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
         3: .line 30
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
         4: .line 32
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
         5: .line 33
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferStart:I
         6: .line 39
            aload 0 /* this */
            aload 1 /* r */
            putfield org.apache.lucene.queryparser.classic.FastCharStream.input:Ljava/io/Reader;
         7: .line 40
            return
        end local 1 // java.io.Reader r
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
            0    8     1     r  Ljava/io/Reader;
    MethodParameters:
      Name  Flags
      r     

  public final char readChar();
    descriptor: ()C
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 44
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
            if_icmplt 2
         1: .line 45
            aload 0 /* this */
            invokevirtual org.apache.lucene.queryparser.classic.FastCharStream.refill:()V
         2: .line 46
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            aload 0 /* this */
            dup
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            dup_x1
            iconst_1
            iadd
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            caload
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
    Exceptions:
      throws java.io.IOException

  private final void refill();
    descriptor: ()V
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 50
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            isub
            istore 1 /* newPosition */
        start local 1 // int newPosition
         1: .line 52
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            ifne 10
         2: .line 53
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            ifnonnull 5
         3: .line 54
            aload 0 /* this */
            sipush 2048
            newarray 5
            putfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
         4: .line 55
            goto 11
      StackMap locals: int
      StackMap stack:
         5: aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            arraylength
            if_icmpne 11
         6: .line 56
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            arraylength
            iconst_2
            imul
            newarray 5
            astore 2 /* newBuffer */
        start local 2 // char[] newBuffer
         7: .line 57
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            iconst_0
            aload 2 /* newBuffer */
            iconst_0
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         8: .line 58
            aload 0 /* this */
            aload 2 /* newBuffer */
            putfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
        end local 2 // char[] newBuffer
         9: .line 60
            goto 11
        10: .line 61
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            iconst_0
            iload 1 /* newPosition */
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        11: .line 64
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iload 1 /* newPosition */
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
        12: .line 65
            aload 0 /* this */
            iload 1 /* newPosition */
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
        13: .line 66
            aload 0 /* this */
            dup
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferStart:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            iadd
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferStart:I
        14: .line 67
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
        15: .line 70
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.input:Ljava/io/Reader;
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            iload 1 /* newPosition */
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            arraylength
            iload 1 /* newPosition */
            isub
            invokevirtual java.io.Reader.read:([CII)I
        16: .line 69
            istore 2 /* charsRead */
        start local 2 // int charsRead
        17: .line 71
            iload 2 /* charsRead */
            iconst_m1
            if_icmpne 19
        18: .line 72
            new java.io.IOException
            dup
            ldc "read past eof"
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
        19: .line 74
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
            iload 2 /* charsRead */
            iadd
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferLength:I
        20: .line 75
            return
        end local 2 // int charsRead
        end local 1 // int newPosition
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   21     0         this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
            1   21     1  newPosition  I
            7    9     2    newBuffer  [C
           17   21     2    charsRead  I
    Exceptions:
      throws java.io.IOException

  public final char BeginToken();
    descriptor: ()C
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 79
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            putfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
         1: .line 80
            aload 0 /* this */
            invokevirtual org.apache.lucene.queryparser.classic.FastCharStream.readChar:()C
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
    Exceptions:
      throws java.io.IOException

  public final void backup(int);
    descriptor: (I)V
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
        start local 1 // int amount
         0: .line 85
            aload 0 /* this */
            dup
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            iload 1 /* amount */
            isub
            putfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
         1: .line 86
            return
        end local 1 // int amount
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
            0    2     1  amount  I
    MethodParameters:
        Name  Flags
      amount  

  public final java.lang.String GetImage();
    descriptor: ()Ljava/lang/String;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=6, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 90
            new java.lang.String
            dup
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            isub
            invokespecial java.lang.String.<init>:([CII)V
            areturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;

  public final char[] GetSuffix(int);
    descriptor: (I)[C
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
        start local 1 // int len
         0: .line 95
            iload 1 /* len */
            newarray 5
            astore 2 /* value */
        start local 2 // char[] value
         1: .line 96
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.buffer:[C
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            iload 1 /* len */
            isub
            aload 2 /* value */
            iconst_0
            iload 1 /* len */
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         2: .line 97
            aload 2 /* value */
            areturn
        end local 2 // char[] value
        end local 1 // int len
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
            0    3     1    len  I
            1    3     2  value  [C
    MethodParameters:
      Name  Flags
      len   

  public final void Done();
    descriptor: ()V
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 103
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.input:Ljava/io/Reader;
            invokevirtual java.io.Reader.close:()V
         1: .line 104
            goto 3
      StackMap locals:
      StackMap stack: java.io.IOException
         2: pop
         3: .line 106
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
      Exception table:
        from    to  target  type
           0     1       2  Class java.io.IOException

  public final int getColumn();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 110
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferStart:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            iadd
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;

  public final int getLine();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 114
            iconst_1
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;

  public final int getEndColumn();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 118
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferStart:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferPosition:I
            iadd
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;

  public final int getEndLine();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 122
            iconst_1
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;

  public final int getBeginColumn();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 126
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.bufferStart:I
            aload 0 /* this */
            getfield org.apache.lucene.queryparser.classic.FastCharStream.tokenStart:I
            iadd
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;

  public final int getBeginLine();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
         0: .line 130
            iconst_1
            ireturn
        end local 0 // org.apache.lucene.queryparser.classic.FastCharStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/queryparser/classic/FastCharStream;
}
SourceFile: "FastCharStream.java"