public NumberValue BinaryGet(BinaryValue value, NumberValue index)
{
if (index.Value < 0 || index.Value > value.Value.Length)
{
throw ProgramError.Fatal("Binary", "get index out of range");
}
return(NumberValue.Create(value.Value[(int)index.Value]));
}
public DataRow MakeEntry(CatalogEntry entry)
{
return(DataRow.Create(Table.Heading, new TypedValue[] {
TextValue.Create(entry.Name),
TextValue.Create(entry.Kind.ToString()),
TextValue.Create(entry.DataType.BaseType.Name),
BinaryValue.Create(entry.ToBinary())
}));
}
public BinaryValue BinarySet(BinaryValue value, NumberValue index, NumberValue newvalue)
{
if (index.Value < 0 || index.Value > value.Value.Length)
{
throw ProgramError.Fatal("Binary", "set index out of range");
}
var b = value.Value.Clone() as byte[];
b[(int)index.Value] = (byte)newvalue.Value;
return(BinaryValue.Create(b));
}
///=================================================================
///
/// binary operations
///
public BinaryValue Binary(TypedValue value)
{
if (value.DataType == DataTypes.Text)
{
return(BinaryValue.Default); // TODO: convert text to binary
}
if (value.DataType == DataTypes.Number)
{
var size = (int)((NumberValue)value).Value;
return(BinaryValue.Create(new byte[size]));
}
throw ProgramError.Fatal("Binary", "invalid arg type");
}
public NumberValue BinaryLength(BinaryValue arg1)
{
return(NumberValue.Create(arg1.Value.Length));
}
public void SetBinary(int colno, byte[] value)
{
_valueholder._values[colno] = BinaryValue.Create(value);
}
static BinaryValue()
{
Default = new BinaryValue {
Value = new byte[0]
};
}
