Enum FieldType

pub enum FieldType {
    SwitchingField(SwitchingField),
    ConsistentField(Expression),
}

Variants

SwitchingField(SwitchingField)

Field that switches output based on which duplicate is being output. Every switching_field should contain the same number of duplicates (so that the output rows are of consistent size and type). If there are not enough switching field definitions to match the other field definitions NULL will be returned to fill the extras.

ConsistentField(Expression)

Field that outputs the same value no matter which duplicate is being output. Equivalent to a switching_field that lists the same expression multiple times.

Implementations

impl FieldType

pub fn encode(&self, buf: &mut impl BufMut)

Encodes the message to a buffer.

pub fn merge( field: &mut Option<FieldType>, tag: u32, wire_type: WireType, buf: &mut impl Buf, ctx: DecodeContext, ) -> Result<(), DecodeError>

Decodes an instance of the message from a buffer, and merges it into self.

pub fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

Trait Implementations

impl Clone for FieldType

fn clone(&self) -> FieldType

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FieldType

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

Formats the value using the given formatter.

impl PartialEq for FieldType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for FieldType