Trait FixedWireSize 

pub trait FixedWireSize {
    const WIRE_SIZE: usize;
}

Marker trait for types with a fixed wire size in PostgreSQL binary protocol.

This trait is only implemented for types that have a guaranteed fixed size on the wire. For use with RefFromRow, wrap types in LengthPrefixed<T> to account for PostgreSQL’s length prefix.

Required Associated Constants

const WIRE_SIZE: usize

The fixed size in bytes on the wire.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FixedWireSize for i8

const WIRE_SIZE: usize = 1

impl FixedWireSize for u8

const WIRE_SIZE: usize = 1

Implementors

impl FixedWireSize for I16

const WIRE_SIZE: usize = 2

impl FixedWireSize for I32

const WIRE_SIZE: usize = 4

impl FixedWireSize for I64

const WIRE_SIZE: usize = 8

impl FixedWireSize for U16

const WIRE_SIZE: usize = 2

impl FixedWireSize for U32

const WIRE_SIZE: usize = 4

impl FixedWireSize for U64

const WIRE_SIZE: usize = 8

impl<T: FixedWireSize> FixedWireSize for LengthPrefixed<T>

const WIRE_SIZE: usize