Struct EmptyStruct
pub struct EmptyStruct;
Expand description
Used in places where empty structs are needed, such as empty union members, to avoid creating new struct types.
Trait Implementations§
§impl Clone for EmptyStruct
impl Clone for EmptyStruct
§fn clone(&self) -> EmptyStruct
fn clone(&self) -> EmptyStruct
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read more§impl Debug for EmptyStruct
impl Debug for EmptyStruct
§impl<D> Decode<EmptyStruct, D> for EmptyStructwhere
D: ResourceDialect,
impl<D> Decode<EmptyStruct, D> for EmptyStructwhere
D: ResourceDialect,
§fn new_empty() -> EmptyStruct
fn new_empty() -> EmptyStruct
Creates a valid instance of
Self
. The specific value does not matter,
since it will be overwritten by decode
.§impl<D> Encode<EmptyStruct, D> for &EmptyStructwhere
D: ResourceDialect,
impl<D> Encode<EmptyStruct, D> for &EmptyStructwhere
D: ResourceDialect,
§impl Hash for EmptyStruct
impl Hash for EmptyStruct
§impl Ord for EmptyStruct
impl Ord for EmptyStruct
§impl PartialEq for EmptyStruct
impl PartialEq for EmptyStruct
§impl PartialOrd for EmptyStruct
impl PartialOrd for EmptyStruct
§impl TypeMarker for EmptyStruct
impl TypeMarker for EmptyStruct
§type Owned = EmptyStruct
type Owned = EmptyStruct
The owned Rust type which this FIDL type decodes into.
§fn inline_align(_context: Context) -> usize
fn inline_align(_context: Context) -> usize
Returns the minimum required alignment of the inline portion of the
encoded object. It must be a (nonzero) power of two.
§fn inline_size(_context: Context) -> usize
fn inline_size(_context: Context) -> usize
Returns the size of the inline portion of the encoded object, including
padding for alignment. Must be a multiple of
inline_align
.§fn encode_is_copy() -> bool
fn encode_is_copy() -> bool
Returns true if the memory layout of
Self::Owned
matches the FIDL wire
format and encoding requires no validation. When true, we can optimize
encoding arrays and vectors of Self::Owned
to a single memcpy. Read more§fn decode_is_copy() -> bool
fn decode_is_copy() -> bool
Returns true if the memory layout of
Self::Owned
matches the FIDL wire
format and decoding requires no validation. When true, we can optimize
decoding arrays and vectors of Self::Owned
to a single memcpy.§impl ValueTypeMarker for EmptyStruct
impl ValueTypeMarker for EmptyStruct
§type Borrowed<'a> = &'a EmptyStruct
type Borrowed<'a> = &'a EmptyStruct
The Rust type to use for encoding. This is a particular
Encode<Self>
type cheaply obtainable from &Self::Owned
. There are three cases: Read more§fn borrow(
value: &<EmptyStruct as TypeMarker>::Owned,
) -> <EmptyStruct as ValueTypeMarker>::Borrowed<'_>
fn borrow( value: &<EmptyStruct as TypeMarker>::Owned, ) -> <EmptyStruct as ValueTypeMarker>::Borrowed<'_>
Cheaply converts from
&Self::Owned
to Self::Borrowed
.impl Copy for EmptyStruct
impl Eq for EmptyStruct
impl Persistable for EmptyStruct
impl StructuralPartialEq for EmptyStruct
Auto Trait Implementations§
impl Freeze for EmptyStruct
impl RefUnwindSafe for EmptyStruct
impl Send for EmptyStruct
impl Sync for EmptyStruct
impl Unpin for EmptyStruct
impl UnwindSafe for EmptyStruct
Blanket Implementations§
§impl<T> Body for Twhere
T: Persistable,
impl<T> Body for Twhere
T: Persistable,
§type MarkerAtTopLevel = T
type MarkerAtTopLevel = T
The marker type to use when the body is at the top-level.
§type MarkerInResultUnion = T
type MarkerInResultUnion = T
The marker type to use when the body is nested in a result union.
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more