Class AbstractFloatDataType

    • Constructor Detail

      • AbstractFloatDataType

        public AbstractFloatDataType​(java.lang.String name,
                                     DataTypeManager dtm)
    • Method Detail

      • getDescription

        public java.lang.String getDescription()
        Description copied from interface: DataType
        Get a String briefly describing this DataType.
        Returns:
        a one-liner describing this DataType.
        See Also:
        DataType.getDescription()
      • getValue

        public java.lang.Object getValue​(MemBuffer buf,
                                         Settings settings,
                                         int length)
        Description copied from interface: DataType
        Get the data in the form of the appropriate Object for this DataType.

        For instance if the datatype is an AddressDT, return an Address object. a Byte, return a Scalar* (maybe this should be a Byte) a Float, return a Float

        Parameters:
        buf - the data buffer.
        settings - the settings to use.
        length - the number of bytes to get the value from.
        Returns:
        the data Object.
        See Also:
        DataType.getValue(ghidra.program.model.mem.MemBuffer, ghidra.docking.settings.Settings, int)
      • encodeValue

        public byte[] encodeValue​(java.lang.Object value,
                                  MemBuffer buf,
                                  Settings settings,
                                  int length)
                           throws DataTypeEncodeException
        Description copied from interface: DataType
        Encode bytes from an Object appropriate for this DataType.

        Converts the given object to the byte encoding and returns it. When appropriate, this should seek the nearest encoding to the specified value, since the object may come from a user script. For example, a floating-point value may be rounded. Invalid values should be rejected with a DataTypeEncodeException.

        Specified by:
        encodeValue in interface DataType
        Overrides:
        encodeValue in class AbstractDataType
        Parameters:
        value - the desired value.
        buf - a buffer representing the eventual destination of the bytes.
        settings - the settings to use.
        length - the expected length of the result, usually the length of the data unit, or -1 to let the type choose the length. It may be ignored, e.g., for fixed-length types.
        Returns:
        the encoded value.
        Throws:
        DataTypeEncodeException - if the value cannot be encoded for any reason, e.g., incorrect type, not enough space, buffer overflow, unsupported (see DataType.isEncodable()).
      • getRepresentation

        public java.lang.String getRepresentation​(MemBuffer buf,
                                                  Settings settings,
                                                  int length)
        Description copied from interface: DataType
        Get bytes from memory in a printable format for this type.
        Parameters:
        buf - the data.
        settings - the settings to use for the representation.
        length - the number of bytes to represent.
        Returns:
        the representation of the data in this format, never null.
        See Also:
        DataType.getRepresentation(MemBuffer, Settings, int)
      • encodeRepresentation

        public byte[] encodeRepresentation​(java.lang.String repr,
                                           MemBuffer buf,
                                           Settings settings,
                                           int length)
                                    throws DataTypeEncodeException
        Description copied from interface: DataType
        Encode bytes according to the display format for this type.

        Converts the given representation to the byte encoding and returns it. When appropriate, this should seek the nearest encoding to the specified value, since the representation is likely coming from user input. For example, a floating-point value may be rounded. Invalid representations should be rejected with a DataTypeEncodeException.

        Specified by:
        encodeRepresentation in interface DataType
        Overrides:
        encodeRepresentation in class AbstractDataType
        Parameters:
        repr - the representation of the desired value, as in DataType.getRepresentation(MemBuffer, Settings, int). The supported formats depend on the specific datatype and its settings.
        buf - a buffer representing the eventual destination of the bytes.
        settings - the settings to use for the representation.
        length - the expected length of the result, usually the length of the data unit, or -1 to let the type choose the length. It may be ignored, e.g., for fixed-length types.
        Returns:
        the encoded value.
        Throws:
        DataTypeEncodeException - if the value cannot be encoded for any reason, e.g., incorrect format, not enough space, buffer overflow, unsupported (see DataType.isEncodable()).
      • getDefaultLabelPrefix

        public java.lang.String getDefaultLabelPrefix()
        Description copied from interface: DataType
        Returns the appropriate string to use as the default label prefix in the absence of any data.
        Specified by:
        getDefaultLabelPrefix in interface DataType
        Overrides:
        getDefaultLabelPrefix in class AbstractDataType
        Returns:
        the default label prefix or null if none specified.
      • getCTypeDeclaration

        public java.lang.String getCTypeDeclaration​(DataOrganization dataOrganization)
        Description copied from class: BuiltIn
        Returns null for FactoryDataType (which should never be used) and Dynamic types which should generally be replaced by a primitive array (e.g., char[5]) or, a primitive pointer (e.g., char *). For other types an appropriately sized unsigned integer typedef is returned.
        Specified by:
        getCTypeDeclaration in interface BuiltInDataType
        Overrides:
        getCTypeDeclaration in class BuiltIn
        Parameters:
        dataOrganization - or null for default
        Returns:
        definition C-statement (e.g., #define or typedef) or null if type name is a standard C-primitive name or if type is FactoryDataType or Dynamic.
        See Also:
        BuiltInDataType.getCTypeDeclaration(ghidra.program.model.data.DataOrganization)
      • getFloatDataType

        public static DataType getFloatDataType​(int size,
                                                DataTypeManager dtm)
        Get a Float data-type instance of the requested size
        Parameters:
        size - data type size, unsupported sizes will cause an undefined type to be returned.
        dtm - optional program data-type manager, if specified a generic data-type will be returned if possible (i.e., float, double, long double).
        Returns:
        float data type of specified size
      • getFloatDataTypes

        public static AbstractFloatDataType[] getFloatDataTypes​(DataTypeManager dtm)
        Returns all built-in float data-types
        Parameters:
        dtm - optional program data-type manager, if specified generic data-types will be returned in place of fixed-sized data-types.