Enum skytable::DataType

#[non_exhaustive]
pub enum DataType {
    Str(String),
    RespCode(RespCode),
    UnsignedInt(u64),
}

A data type as defined by the Terrapipe protocol

Every variant stays in an Option for convenience while parsing. It’s like we first create a Variant(None) variant. Then we read the data which corresponds to it, and then we replace None with the appropriate object. When we first detect the type, we use this as a way of matching avoiding duplication by writing another DataType enum

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Str(String)

A string value

RespCode(RespCode)

A response code (it is kept as String for “other error” types)

UnsignedInt(u64)

An unsigned 64-bit integer, equivalent to an u64

Trait Implementations

impl Debug for DataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<DataType> for DataType

fn eq(&self, other: &DataType) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &DataType) -> bool

This method tests for !=.

impl StructuralPartialEq for DataType