io.netty/netty-all/4.1.25.Final : io/netty/handler/codec/base64/Base64$Decoder.class

Base64$Decoder
http://netty.io/netty-all/: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. (The Netty Project)
Apache License, Version 2.0
The Netty Project Contributors (The Netty Project)
final class io.netty.handler.codec.base64.Base64$Decoder implements io.netty.util.ByteProcessor
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: io.netty.handler.codec.base64.Base64$Decoder
  super_class: java.lang.Object
{
  private final byte[] b4;
    descriptor: [B
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private int b4Posn;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private byte sbiCrop;
    descriptor: B
    flags: (0x0002) ACC_PRIVATE

  private byte sbiDecode;
    descriptor: B
    flags: (0x0002) ACC_PRIVATE

  private byte[] decodabet;
    descriptor: [B
    flags: (0x0002) ACC_PRIVATE

  private int outBuffPosn;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private io.netty.buffer.ByteBuf dest;
    descriptor: Lio/netty/buffer/ByteBuf;
    flags: (0x0002) ACC_PRIVATE

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.base64.Base64$Decoder this
         0: .line 331
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 332
            aload 0 /* this */
            iconst_4
            newarray 8
            putfield io.netty.handler.codec.base64.Base64$Decoder.b4:[B
         2: .line 331
            return
        end local 0 // io.netty.handler.codec.base64.Base64$Decoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lio/netty/handler/codec/base64/Base64$Decoder;

  io.netty.buffer.ByteBuf decode(io.netty.buffer.ByteBuf, int, int, io.netty.buffer.ByteBufAllocator, io.netty.handler.codec.base64.Base64Dialect);
    descriptor: (Lio/netty/buffer/ByteBuf;IILio/netty/buffer/ByteBufAllocator;Lio/netty/handler/codec/base64/Base64Dialect;)Lio/netty/buffer/ByteBuf;
    flags: (0x0000) 
    Code:
      stack=4, locals=7, args_size=6
        start local 0 // io.netty.handler.codec.base64.Base64$Decoder this
        start local 1 // io.netty.buffer.ByteBuf src
        start local 2 // int off
        start local 3 // int len
        start local 4 // io.netty.buffer.ByteBufAllocator allocator
        start local 5 // io.netty.handler.codec.base64.Base64Dialect dialect
         0: .line 341
            aload 0 /* this */
            aload 4 /* allocator */
            iload 3 /* len */
            invokestatic io.netty.handler.codec.base64.Base64.decodedBufferSize:(I)I
            invokeinterface io.netty.buffer.ByteBufAllocator.buffer:(I)Lio/netty/buffer/ByteBuf;
            aload 1 /* src */
            invokevirtual io.netty.buffer.ByteBuf.order:()Ljava/nio/ByteOrder;
            invokevirtual io.netty.buffer.ByteBuf.order:(Ljava/nio/ByteOrder;)Lio/netty/buffer/ByteBuf;
            putfield io.netty.handler.codec.base64.Base64$Decoder.dest:Lio/netty/buffer/ByteBuf;
         1: .line 343
            aload 0 /* this */
            aload 5 /* dialect */
            invokestatic io.netty.handler.codec.base64.Base64.decodabet:(Lio/netty/handler/codec/base64/Base64Dialect;)[B
            putfield io.netty.handler.codec.base64.Base64$Decoder.decodabet:[B
         2: .line 345
            aload 1 /* src */
            iload 2 /* off */
            iload 3 /* len */
            aload 0 /* this */
            invokevirtual io.netty.buffer.ByteBuf.forEachByte:(IILio/netty/util/ByteProcessor;)I
            pop
         3: .line 346
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.dest:Lio/netty/buffer/ByteBuf;
            iconst_0
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.outBuffPosn:I
            invokevirtual io.netty.buffer.ByteBuf.slice:(II)Lio/netty/buffer/ByteBuf;
         4: areturn
         5: .line 347
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 6 /* cause */
        start local 6 // java.lang.Throwable cause
         6: .line 348
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.dest:Lio/netty/buffer/ByteBuf;
            invokevirtual io.netty.buffer.ByteBuf.release:()Z
            pop
         7: .line 349
            aload 6 /* cause */
            invokestatic io.netty.util.internal.PlatformDependent.throwException:(Ljava/lang/Throwable;)V
         8: .line 350
            aconst_null
            areturn
        end local 6 // java.lang.Throwable cause
        end local 5 // io.netty.handler.codec.base64.Base64Dialect dialect
        end local 4 // io.netty.buffer.ByteBufAllocator allocator
        end local 3 // int len
        end local 2 // int off
        end local 1 // io.netty.buffer.ByteBuf src
        end local 0 // io.netty.handler.codec.base64.Base64$Decoder this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    9     0       this  Lio/netty/handler/codec/base64/Base64$Decoder;
            0    9     1        src  Lio/netty/buffer/ByteBuf;
            0    9     2        off  I
            0    9     3        len  I
            0    9     4  allocator  Lio/netty/buffer/ByteBufAllocator;
            0    9     5    dialect  Lio/netty/handler/codec/base64/Base64Dialect;
            6    9     6      cause  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           2     4       5  Class java.lang.Throwable
    MethodParameters:
           Name  Flags
      src        
      off        
      len        
      allocator  
      dialect    

  public boolean process(byte);
    descriptor: (B)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.base64.Base64$Decoder this
        start local 1 // byte value
         0: .line 356
            aload 0 /* this */
            iload 1 /* value */
            bipush 127
            iand
            i2b
            putfield io.netty.handler.codec.base64.Base64$Decoder.sbiCrop:B
         1: .line 357
            aload 0 /* this */
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.decodabet:[B
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.sbiCrop:B
            baload
            putfield io.netty.handler.codec.base64.Base64$Decoder.sbiDecode:B
         2: .line 359
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.sbiDecode:B
            bipush -5
            if_icmplt 11
         3: .line 360
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.sbiDecode:B
            iconst_m1
            if_icmplt 10
         4: .line 361
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.b4:[B
            aload 0 /* this */
            dup
            getfield io.netty.handler.codec.base64.Base64$Decoder.b4Posn:I
            dup_x1
            iconst_1
            iadd
            putfield io.netty.handler.codec.base64.Base64$Decoder.b4Posn:I
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.sbiCrop:B
            bastore
         5: .line 362
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.b4Posn:I
            iconst_3
            if_icmple 10
         6: .line 363
            aload 0 /* this */
            dup
            getfield io.netty.handler.codec.base64.Base64$Decoder.outBuffPosn:I
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.b4:[B
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.dest:Lio/netty/buffer/ByteBuf;
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.outBuffPosn:I
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.decodabet:[B
            invokestatic io.netty.handler.codec.base64.Base64$Decoder.decode4to3:([BLio/netty/buffer/ByteBuf;I[B)I
            iadd
            putfield io.netty.handler.codec.base64.Base64$Decoder.outBuffPosn:I
         7: .line 364
            aload 0 /* this */
            iconst_0
            putfield io.netty.handler.codec.base64.Base64$Decoder.b4Posn:I
         8: .line 367
            aload 0 /* this */
            getfield io.netty.handler.codec.base64.Base64$Decoder.sbiCrop:B
            bipush 61
            if_icmpne 10
         9: .line 368
            iconst_0
            ireturn
        10: .line 372
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        11: .line 374
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
        12: .line 375
            new java.lang.StringBuilder
            dup
            ldc "invalid bad Base64 input character: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 1 /* value */
            sipush 255
            iand
            i2s
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " (decimal)"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        13: .line 374
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // byte value
        end local 0 // io.netty.handler.codec.base64.Base64$Decoder this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   14     0   this  Lio/netty/handler/codec/base64/Base64$Decoder;
            0   14     1  value  B
    Exceptions:
      throws java.lang.Exception
    MethodParameters:
       Name  Flags
      value  

  private static int decode4to3(byte[], io.netty.buffer.ByteBuf, int, byte[]);
    descriptor: ([BLio/netty/buffer/ByteBuf;I[B)I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=11, args_size=4
        start local 0 // byte[] src
        start local 1 // io.netty.buffer.ByteBuf dest
        start local 2 // int destOffset
        start local 3 // byte[] decodabet
         0: .line 379
            aload 0 /* src */
            iconst_0
            baload
            istore 4 /* src0 */
        start local 4 // byte src0
         1: .line 380
            aload 0 /* src */
            iconst_1
            baload
            istore 5 /* src1 */
        start local 5 // byte src1
         2: .line 381
            aload 0 /* src */
            iconst_2
            baload
            istore 6 /* src2 */
        start local 6 // byte src2
         3: .line 383
            iload 6 /* src2 */
            bipush 61
            if_icmpne 10
         4: .line 386
            aload 3 /* decodabet */
            iload 4 /* src0 */
            baload
            sipush 255
            iand
            iconst_2
            ishl
            aload 3 /* decodabet */
            iload 5 /* src1 */
            baload
            sipush 255
            iand
            iconst_4
            iushr
            ior
            istore 7 /* decodedValue */
        start local 7 // int decodedValue
         5: .line 387
            goto 8
        end local 7 // int decodedValue
      StackMap locals: byte[] io.netty.buffer.ByteBuf int byte[] int int int
      StackMap stack: java.lang.IndexOutOfBoundsException
         6: pop
         7: .line 388
            new java.lang.IllegalArgumentException
            dup
            ldc "not encoded in Base64"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        start local 7 // int decodedValue
         8: .line 390
      StackMap locals: int
      StackMap stack:
            aload 1 /* dest */
            iload 2 /* destOffset */
            iload 7 /* decodedValue */
            invokevirtual io.netty.buffer.ByteBuf.setByte:(II)Lio/netty/buffer/ByteBuf;
            pop
         9: .line 391
            iconst_1
            ireturn
        end local 7 // int decodedValue
        10: .line 394
      StackMap locals:
      StackMap stack:
            aload 0 /* src */
            iconst_3
            baload
            istore 8 /* src3 */
        start local 8 // byte src3
        11: .line 395
            iload 8 /* src3 */
            bipush 61
            if_icmpne 28
        12: .line 397
            aload 3 /* decodabet */
            iload 5 /* src1 */
            baload
            istore 9 /* b1 */
        start local 9 // byte b1
        13: .line 400
            aload 1 /* dest */
            invokevirtual io.netty.buffer.ByteBuf.order:()Ljava/nio/ByteOrder;
            getstatic java.nio.ByteOrder.BIG_ENDIAN:Ljava/nio/ByteOrder;
            if_acmpne 20
        14: .line 403
            aload 3 /* decodabet */
            iload 4 /* src0 */
            baload
            bipush 63
            iand
            iconst_2
            ishl
            iload 9 /* b1 */
            sipush 240
            iand
            iconst_4
            ishr
            ior
            bipush 8
            ishl
        15: .line 404
            iload 9 /* b1 */
            bipush 15
            iand
            iconst_4
            ishl
        16: .line 403
            ior
        17: .line 404
            aload 3 /* decodabet */
            iload 6 /* src2 */
            baload
            sipush 252
            iand
            iconst_2
            iushr
        18: .line 403
            ior
            istore 7 /* decodedValue */
        start local 7 // int decodedValue
        19: .line 405
            goto 26
        end local 7 // int decodedValue
        20: .line 407
      StackMap locals: byte[] io.netty.buffer.ByteBuf int byte[] int int int top int int
      StackMap stack:
            aload 3 /* decodabet */
            iload 4 /* src0 */
            baload
            bipush 63
            iand
            iconst_2
            ishl
            iload 9 /* b1 */
            sipush 240
            iand
            iconst_4
            ishr
            ior
        21: .line 408
            iload 9 /* b1 */
            bipush 15
            iand
            iconst_4
            ishl
            aload 3 /* decodabet */
            iload 6 /* src2 */
            baload
            sipush 252
            iand
            iconst_2
            iushr
            ior
            bipush 8
            ishl
        22: .line 407
            ior
            istore 7 /* decodedValue */
        start local 7 // int decodedValue
        23: .line 410
            goto 26
        end local 7 // int decodedValue
      StackMap locals:
      StackMap stack: java.lang.IndexOutOfBoundsException
        24: pop
        25: .line 411
            new java.lang.IllegalArgumentException
            dup
            ldc "not encoded in Base64"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        start local 7 // int decodedValue
        26: .line 413
      StackMap locals: byte[] io.netty.buffer.ByteBuf int byte[] int int int int int int
      StackMap stack:
            aload 1 /* dest */
            iload 2 /* destOffset */
            iload 7 /* decodedValue */
            invokevirtual io.netty.buffer.ByteBuf.setShort:(II)Lio/netty/buffer/ByteBuf;
            pop
        27: .line 414
            iconst_2
            ireturn
        end local 9 // byte b1
        end local 7 // int decodedValue
        28: .line 419
      StackMap locals: byte[] io.netty.buffer.ByteBuf int byte[] int int int top int
      StackMap stack:
            aload 1 /* dest */
            invokevirtual io.netty.buffer.ByteBuf.order:()Ljava/nio/ByteOrder;
            getstatic java.nio.ByteOrder.BIG_ENDIAN:Ljava/nio/ByteOrder;
            if_acmpne 37
        29: .line 420
            aload 3 /* decodabet */
            iload 4 /* src0 */
            baload
            bipush 63
            iand
            bipush 18
            ishl
        30: .line 421
            aload 3 /* decodabet */
            iload 5 /* src1 */
            baload
            sipush 255
            iand
            bipush 12
            ishl
        31: .line 420
            ior
        32: .line 422
            aload 3 /* decodabet */
            iload 6 /* src2 */
            baload
            sipush 255
            iand
            bipush 6
            ishl
        33: .line 420
            ior
        34: .line 423
            aload 3 /* decodabet */
            iload 8 /* src3 */
            baload
            sipush 255
            iand
        35: .line 420
            ior
            istore 7 /* decodedValue */
        start local 7 // int decodedValue
        36: .line 424
            goto 53
        end local 7 // int decodedValue
        37: .line 425
      StackMap locals:
      StackMap stack:
            aload 3 /* decodabet */
            iload 5 /* src1 */
            baload
            istore 9 /* b1 */
        start local 9 // byte b1
        38: .line 426
            aload 3 /* decodabet */
            iload 6 /* src2 */
            baload
            istore 10 /* b2 */
        start local 10 // byte b2
        39: .line 432
            aload 3 /* decodabet */
            iload 4 /* src0 */
            baload
            bipush 63
            iand
            iconst_2
            ishl
        40: .line 434
            iload 9 /* b1 */
            bipush 15
            iand
            bipush 12
            ishl
        41: .line 432
            ior
        42: .line 436
            iload 9 /* b1 */
            sipush 240
            iand
            iconst_4
            iushr
        43: .line 432
            ior
        44: .line 438
            iload 10 /* b2 */
            iconst_3
            iand
            bipush 22
            ishl
        45: .line 432
            ior
        46: .line 440
            iload 10 /* b2 */
            sipush 252
            iand
            bipush 6
            ishl
        47: .line 432
            ior
        48: .line 441
            aload 3 /* decodabet */
            iload 8 /* src3 */
            baload
            sipush 255
            iand
            bipush 16
            ishl
        49: .line 432
            ior
            istore 7 /* decodedValue */
        end local 10 // byte b2
        end local 9 // byte b1
        start local 7 // int decodedValue
        50: .line 443
            goto 53
        end local 7 // int decodedValue
      StackMap locals:
      StackMap stack: java.lang.IndexOutOfBoundsException
        51: pop
        52: .line 444
            new java.lang.IllegalArgumentException
            dup
            ldc "not encoded in Base64"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        start local 7 // int decodedValue
        53: .line 446
      StackMap locals: byte[] io.netty.buffer.ByteBuf int byte[] int int int int int
      StackMap stack:
            aload 1 /* dest */
            iload 2 /* destOffset */
            iload 7 /* decodedValue */
            invokevirtual io.netty.buffer.ByteBuf.setMedium:(II)Lio/netty/buffer/ByteBuf;
            pop
        54: .line 447
            iconst_3
            ireturn
        end local 8 // byte src3
        end local 7 // int decodedValue
        end local 6 // byte src2
        end local 5 // byte src1
        end local 4 // byte src0
        end local 3 // byte[] decodabet
        end local 2 // int destOffset
        end local 1 // io.netty.buffer.ByteBuf dest
        end local 0 // byte[] src
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   55     0           src  [B
            0   55     1          dest  Lio/netty/buffer/ByteBuf;
            0   55     2    destOffset  I
            0   55     3     decodabet  [B
            1   55     4          src0  B
            2   55     5          src1  B
            3   55     6          src2  B
            5    6     7  decodedValue  I
            8   10     7  decodedValue  I
           19   20     7  decodedValue  I
           23   24     7  decodedValue  I
           26   28     7  decodedValue  I
           36   37     7  decodedValue  I
           50   51     7  decodedValue  I
           53   55     7  decodedValue  I
           11   55     8          src3  B
           13   28     9            b1  B
           38   50     9            b1  B
           39   50    10            b2  B
      Exception table:
        from    to  target  type
           4     5       6  Class java.lang.IndexOutOfBoundsException
          13    23      24  Class java.lang.IndexOutOfBoundsException
          28    50      51  Class java.lang.IndexOutOfBoundsException
    MethodParameters:
            Name  Flags
      src         
      dest        
      destOffset  
      decodabet   
}
SourceFile: "Base64.java"
NestHost: io.netty.handler.codec.base64.Base64
InnerClasses:
  private final Decoder = io.netty.handler.codec.base64.Base64$Decoder of io.netty.handler.codec.base64.Base64
/

io.netty/ netty-all/ 4.1.25.Final/ io/netty/handler/codec/base64/Base64$Decoder.class
