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package sqltypes
// These bit flags can be used to query on the
// common properties of types.
const (
flagIsIntegral = int(Flag_ISINTEGRAL)
flagIsUnsigned = int(Flag_ISUNSIGNED)
flagIsFloat = int(Flag_ISFLOAT)
flagIsQuoted = int(Flag_ISQUOTED)
flagIsText = int(Flag_ISTEXT)
flagIsBinary = int(Flag_ISBINARY)
)
// IsIntegral returns true if Type is an integral
// (signed/unsigned) that can be represented using
// up to 64 binary bits.
// If you have a Value object, use its member function.
func IsIntegral(t Type) bool {
return int(t)&flagIsIntegral == flagIsIntegral
}
// IsSigned returns true if Type is a signed integral.
// If you have a Value object, use its member function.
func IsSigned(t Type) bool {
return int(t)&(flagIsIntegral|flagIsUnsigned) == flagIsIntegral
}
// IsUnsigned returns true if Type is an unsigned integral.
// Caution: this is not the same as !IsSigned.
// If you have a Value object, use its member function.
func IsUnsigned(t Type) bool {
return int(t)&(flagIsIntegral|flagIsUnsigned) == flagIsIntegral|flagIsUnsigned
}
// IsFloat returns true is Type is a floating point.
// If you have a Value object, use its member function.
func IsFloat(t Type) bool {
return int(t)&flagIsFloat == flagIsFloat
}
// IsQuoted returns true if Type is a quoted text or binary.
// If you have a Value object, use its member function.
func IsQuoted(t Type) bool {
return (int(t)&flagIsQuoted == flagIsQuoted) && t != Bit
}
// IsText returns true if Type is a text.
// If you have a Value object, use its member function.
func IsText(t Type) bool {
return int(t)&flagIsText == flagIsText
}
// IsBinary returns true if Type is a binary.
// If you have a Value object, use its member function.
func IsBinary(t Type) bool {
return int(t)&flagIsBinary == flagIsBinary
}
// isNumber returns true if the type is any type of number.
func isNumber(t Type) bool {
return IsIntegral(t) || IsFloat(t) || t == Decimal
}
// IsTemporal returns true if Value is time type.
func IsTemporal(t Type) bool {
switch t {
case Timestamp, Date, Time, Datetime:
return true
}
return false
}
// Vitess data types. These are idiomatically
// named synonyms for the Type values.
const (
Null = Type_NULL_TYPE
Int8 = Type_INT8
Uint8 = Type_UINT8
Int16 = Type_INT16
Uint16 = Type_UINT16
Int32 = Type_INT32
Uint32 = Type_UINT32
Int64 = Type_INT64
Uint64 = Type_UINT64
Float32 = Type_FLOAT32
Float64 = Type_FLOAT64
Timestamp = Type_TIMESTAMP
Date = Type_DATE
Time = Type_TIME
Datetime = Type_DATETIME
Year = Type_YEAR
Decimal = Type_DECIMAL
Text = Type_TEXT
Blob = Type_BLOB
VarChar = Type_VARCHAR
VarBinary = Type_VARBINARY
Char = Type_CHAR
Binary = Type_BINARY
Bit = Type_BIT
TypeJSON = Type_JSON
)
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