Enum rustc_hir::hir::Defaultness
source · pub enum Defaultness {
Default {
has_value: bool,
},
Final,
}
Variants
Default
Fields
has_value: bool
Final
Implementations
Trait Implementations
sourceimpl Clone for Defaultness
impl Clone for Defaultness
sourcefn clone(&self) -> Defaultness
fn clone(&self) -> Defaultness
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl Debug for Defaultness
impl Debug for Defaultness
sourceimpl Hash for Defaultness
impl Hash for Defaultness
sourceimpl<__CTX> HashStable<__CTX> for Defaultnesswhere
__CTX: HashStableContext,
impl<__CTX> HashStable<__CTX> for Defaultnesswhere
__CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
sourceimpl PartialEq<Defaultness> for Defaultness
impl PartialEq<Defaultness> for Defaultness
sourcefn eq(&self, other: &Defaultness) -> bool
fn eq(&self, other: &Defaultness) -> bool
impl Copy for Defaultness
impl Eq for Defaultness
impl StructuralEq for Defaultness
impl StructuralPartialEq for Defaultness
Auto Trait Implementations
impl RefUnwindSafe for Defaultness
impl Send for Defaultness
impl Sync for Defaultness
impl Unpin for Defaultness
impl UnwindSafe for Defaultness
Blanket Implementations
sourceimpl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn 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: 1 byte
Size for each variant:
Default
: 1 byteFinal
: 0 bytes