Package convex.core.data.prim

Class CVMByte

java.lang.Object
convex.core.data.AObject
convex.core.data.ACell
convex.core.data.prim.APrimitive
convex.core.data.prim.CVMByte
All Implemented Interfaces:
INumeric, IValidated, IWriteable
public final class CVMByte extends APrimitive implements INumeric
Class for CVM Byte instances. Bytes are unsigned 8-bit integers which upcast to long for numerical operations.

  • Field Details

    • ZERO

      public static final CVMByte ZERO

    • ONE

      public static final CVMByte ONE

    • MAX_ENCODING_LENGTH

      public static final int MAX_ENCODING_LENGTH
      See Also:

  • Method Details

    • create

      public static CVMByte create(long value)

    • getType

      public AType getType()
      Description copied from class: ACell
      Gets the most specific known runtime Type for this Cell.
      Overrides:
      getType in class ACell
      Returns:
      The Type of this Call

    • longValue

      public long longValue()
      Unsigned long value representing this Byte
      Specified by:
      longValue in class APrimitive
      Returns:
      long value representing primitive

    • estimatedEncodingSize

      public int estimatedEncodingSize()
      Description copied from interface: IWriteable
      Estimate the encoded data size for this Cell. Used for quickly sizing buffers. Implementations should try to return a size that is likely to contain the entire object when represented in binary format, including the tag byte.
      Specified by:
      estimatedEncodingSize in interface IWriteable
      Returns:
      The estimated size for the binary representation of this object.

    • validateCell

      public void validateCell() throws InvalidDataException
      Description copied from class: ACell
      Validates the local structure and invariants of this cell. Called by validate() super implementation. Should validate directly contained data, but should not validate all other structure of this cell. In particular, should not traverse potentially missing child Refs.
      Specified by:
      validateCell in class ACell
      Throws:
      InvalidDataException - If the Cell is invalid

    • encode

      public int encode(byte[] bs, int pos)
      Description copied from class: ACell
      Writes this Cell's encoding to a byte array, including a tag byte which will be written first. Cell must be canonical, or else an error may occur.
      Specified by:
      encode in interface IWriteable
      Specified by:
      encode in class ACell
      Parameters:
      bs - A byte array to which to write the encoding
      pos - The offset into the byte array
      Returns:
      New position after writing

    • encodeRaw

      public int encodeRaw(byte[] bs, int pos)
      Description copied from class: ACell
      Writes this Cell's encoding to a byte array, excluding the tag byte.
      Specified by:
      encodeRaw in class ACell
      Parameters:
      bs - A byte array to which to write the encoding
      pos - The offset into the byte array
      Returns:
      New position after writing

    • print

      public boolean print(BlobBuilder bb, long limit)
      Description copied from class: AObject
      Prints this Object to a readable String Representation. SECURITY: Must halt and return false in O(1) time if limit of printing is exceeded otherwise DoS attacks may be possible.
      Specified by:
      print in class AObject
      Parameters:
      bb - BlobBuilder to append to
      limit - Limit of printing in string bytes
      Returns:
      True if fully printed within limit, false otherwise

    • numericType

      public Class<?> numericType()
      Description copied from interface: INumeric
      Gets the numeric type that should be used as for calculations
      Specified by:
      numericType in interface INumeric
      Returns:
      Double.class or Long.class, or null if not a numeric type

    • doubleValue

      public double doubleValue()
      Specified by:
      doubleValue in interface INumeric
      Specified by:
      doubleValue in class APrimitive
      Returns:
      double value representing primitive

    • getTag

      public byte getTag()
      Description copied from class: ACell
      Gets the tag byte for this cell. The tag byte is always written as the first byte of the Cell's Encoding
      Specified by:
      getTag in class ACell
      Returns:
      Tag byte for this Cell

    • toLong

      public CVMLong toLong()
      Specified by:
      toLong in interface INumeric

    • toDouble

      public CVMDouble toDouble()
      Specified by:
      toDouble in interface INumeric

    • signum

      public CVMLong signum()
      Description copied from interface: INumeric
      Gets the signum of this numerical value. Will be -1, 0 or 1 for Longs, -1.0, 0.0 , 1.0 or ##NaN for Doubles.
      Specified by:
      signum in interface INumeric
      Returns:
      Signum of the numeric value

    • byteValue

      public byte byteValue()

    • toStandardNumber

      public INumeric toStandardNumber()
      Specified by:
      toStandardNumber in interface INumeric

    • toCVMString

      public AString toCVMString(long limit)
      Description copied from class: ACell
      Returns the CVM String representation of this Cell. Normally, this is as printed, but may be different for some types. MUST return null in O(1) time if the length of the CVM String would exceed limit. The String representation is intended to be a easy-to-read textual representation of the Cell's data content.
      Overrides:
      toCVMString in class ACell
      Parameters:
      limit - Limit of CVM String length in UTF-8 bytes
      Returns:
      CVM String, or null if limit exceeded