Enum EmptyStruct 

#[repr(u8)]
pub enum EmptyStruct {
    Zero = 0,
}

An empty struct’s wire representation. C/C++ memory layout rules (and hence FIDL wire rules) require every object to have a unique address so we have to make a single, tiny type for empty structs.

Variants

Zero = 0

Empty structs are represented as a single 0u8.

Trait Implementations

impl Clone for EmptyStruct

fn clone(&self) -> EmptyStruct

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Constrained for EmptyStruct

type Constraint = ()

Type of constraint information for this type.

fn validate( _: Slot<'_, Self>, _: Self::Constraint, ) -> Result<(), ValidationError>

Validate a slot of this type against a constraint. Can be called when pointers/envelopes are just presence markers.

impl Debug for EmptyStruct

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

Formats the value using the given formatter.

impl Wire for EmptyStruct

type Narrowed<'de> = EmptyStruct

The narrowed wire type, restricted to the 'de lifetime.

fn zero_padding(_: &mut MaybeUninit<Self>)

Writes zeroes to the padding for this type, if any.

impl Copy for EmptyStruct