Enum rustc_attr::builtin::UnstableReason
source · pub enum UnstableReason {
None,
Default,
Some(Symbol),
}
Variants§
Implementations§
source§impl UnstableReason
impl UnstableReason
fn from_opt_reason(reason: Option<Symbol>) -> Self
pub fn to_opt_reason(&self) -> Option<Symbol>
Trait Implementations§
source§impl Clone for UnstableReason
impl Clone for UnstableReason
source§fn clone(&self) -> UnstableReason
fn clone(&self) -> UnstableReason
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 moresource§impl Debug for UnstableReason
impl Debug for UnstableReason
source§impl<__D: Decoder> Decodable<__D> for UnstableReason
impl<__D: Decoder> Decodable<__D> for UnstableReason
source§impl<__E: Encoder> Encodable<__E> for UnstableReason
impl<__E: Encoder> Encodable<__E> for UnstableReason
source§impl Hash for UnstableReason
impl Hash for UnstableReason
source§impl<__CTX> HashStable<__CTX> for UnstableReasonwhere
__CTX: HashStableContext,
impl<__CTX> HashStable<__CTX> for UnstableReasonwhere __CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
source§impl PartialEq<UnstableReason> for UnstableReason
impl PartialEq<UnstableReason> for UnstableReason
source§fn eq(&self, other: &UnstableReason) -> bool
fn eq(&self, other: &UnstableReason) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.impl Copy for UnstableReason
impl Eq for UnstableReason
impl StructuralEq for UnstableReason
impl StructuralPartialEq for UnstableReason
Auto Trait Implementations§
impl RefUnwindSafe for UnstableReason
impl Send for UnstableReason
impl Sync for UnstableReason
impl Unpin for UnstableReason
impl UnwindSafe for UnstableReason
Blanket Implementations§
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
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 4 bytes
Size for each variant:
None
: 0 bytesDefault
: 0 bytesSome
: 4 bytes