pub struct VariantFlags(u8);
Tuple Fields§
§0: u8
Implementations§
Source§impl VariantFlags
impl VariantFlags
pub const NO_VARIANT_FLAGS: Self = _
Sourcepub const IS_FIELD_LIST_NON_EXHAUSTIVE: Self = _
pub const IS_FIELD_LIST_NON_EXHAUSTIVE: Self = _
Indicates whether the field list of this variant is #[non_exhaustive]
.
Source§impl VariantFlags
impl VariantFlags
Sourcepub const fn bits(&self) -> u8
pub const fn bits(&self) -> u8
Get the underlying bits value.
The returned value is exactly the bits set in this flags value.
Sourcepub const fn from_bits(bits: u8) -> Option<Self>
pub const fn from_bits(bits: u8) -> Option<Self>
Convert from a bits value.
This method will return None
if any unknown bits are set.
Sourcepub const fn from_bits_truncate(bits: u8) -> Self
pub const fn from_bits_truncate(bits: u8) -> Self
Convert from a bits value, unsetting any unknown bits.
Sourcepub const fn from_bits_retain(bits: u8) -> Self
pub const fn from_bits_retain(bits: u8) -> Self
Convert from a bits value exactly.
Sourcepub fn from_name(name: &str) -> Option<Self>
pub fn from_name(name: &str) -> Option<Self>
Get a flags value with the bits of a flag with the given name set.
This method will return None
if name
is empty or doesn’t
correspond to any named flag.
Sourcepub const fn intersects(&self, other: Self) -> bool
pub const fn intersects(&self, other: Self) -> bool
Whether any set bits in a source flags value are also set in a target flags value.
Sourcepub const fn contains(&self, other: Self) -> bool
pub const fn contains(&self, other: Self) -> bool
Whether all set bits in a source flags value are also set in a target flags value.
Sourcepub fn remove(&mut self, other: Self)
pub fn remove(&mut self, other: Self)
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
remove
won’t truncate other
, but the !
operator will.
Sourcepub fn toggle(&mut self, other: Self)
pub fn toggle(&mut self, other: Self)
The bitwise exclusive-or (^
) of the bits in two flags values.
Sourcepub fn set(&mut self, other: Self, value: bool)
pub fn set(&mut self, other: Self, value: bool)
Call insert
when value
is true
or remove
when value
is false
.
Sourcepub const fn intersection(self, other: Self) -> Self
pub const fn intersection(self, other: Self) -> Self
The bitwise and (&
) of the bits in two flags values.
Sourcepub const fn union(self, other: Self) -> Self
pub const fn union(self, other: Self) -> Self
The bitwise or (|
) of the bits in two flags values.
Sourcepub const fn difference(self, other: Self) -> Self
pub const fn difference(self, other: Self) -> Self
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
difference
won’t truncate other
, but the !
operator will.
Sourcepub const fn symmetric_difference(self, other: Self) -> Self
pub const fn symmetric_difference(self, other: Self) -> Self
The bitwise exclusive-or (^
) of the bits in two flags values.
Sourcepub const fn complement(self) -> Self
pub const fn complement(self) -> Self
The bitwise negation (!
) of the bits in a flags value, truncating the result.
Source§impl VariantFlags
impl VariantFlags
Sourcepub const fn iter(&self) -> Iter<VariantFlags>
pub const fn iter(&self) -> Iter<VariantFlags>
Yield a set of contained flags values.
Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.
Sourcepub const fn iter_names(&self) -> IterNames<VariantFlags>
pub const fn iter_names(&self) -> IterNames<VariantFlags>
Yield a set of contained named flags values.
This method is like iter
, except only yields bits in contained named flags.
Any unknown bits, or bits not corresponding to a contained flag will not be yielded.
Trait Implementations§
Source§impl Binary for VariantFlags
impl Binary for VariantFlags
Source§impl BitAnd for VariantFlags
impl BitAnd for VariantFlags
Source§impl BitAndAssign for VariantFlags
impl BitAndAssign for VariantFlags
Source§fn bitand_assign(&mut self, other: Self)
fn bitand_assign(&mut self, other: Self)
The bitwise and (&
) of the bits in two flags values.
Source§impl BitOr for VariantFlags
impl BitOr for VariantFlags
Source§fn bitor(self, other: VariantFlags) -> Self
fn bitor(self, other: VariantFlags) -> Self
The bitwise or (|
) of the bits in two flags values.
Source§type Output = VariantFlags
type Output = VariantFlags
|
operator.Source§impl BitOrAssign for VariantFlags
impl BitOrAssign for VariantFlags
Source§fn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
The bitwise or (|
) of the bits in two flags values.
Source§impl BitXor for VariantFlags
impl BitXor for VariantFlags
Source§impl BitXorAssign for VariantFlags
impl BitXorAssign for VariantFlags
Source§fn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
The bitwise exclusive-or (^
) of the bits in two flags values.
Source§impl Clone for VariantFlags
impl Clone for VariantFlags
Source§fn clone(&self) -> VariantFlags
fn clone(&self) -> VariantFlags
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for VariantFlags
impl Debug for VariantFlags
Source§impl<__D: TyDecoder> Decodable<__D> for VariantFlags
impl<__D: TyDecoder> Decodable<__D> for VariantFlags
Source§impl<__E: TyEncoder> Encodable<__E> for VariantFlags
impl<__E: TyEncoder> Encodable<__E> for VariantFlags
Source§impl Extend<VariantFlags> for VariantFlags
impl Extend<VariantFlags> for VariantFlags
Source§fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
The bitwise or (|
) of the bits in each flags value.
Source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)Source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)Source§impl Flags for VariantFlags
impl Flags for VariantFlags
Source§const FLAGS: &'static [Flag<VariantFlags>] = _
const FLAGS: &'static [Flag<VariantFlags>] = _
Source§fn from_bits_retain(bits: u8) -> VariantFlags
fn from_bits_retain(bits: u8) -> VariantFlags
Source§fn from_bits_truncate(bits: Self::Bits) -> Self
fn from_bits_truncate(bits: Self::Bits) -> Self
Source§fn from_name(name: &str) -> Option<Self>
fn from_name(name: &str) -> Option<Self>
Source§fn iter_names(&self) -> IterNames<Self>
fn iter_names(&self) -> IterNames<Self>
Source§fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
Source§fn contains(&self, other: Self) -> boolwhere
Self: Sized,
fn contains(&self, other: Self) -> boolwhere
Self: Sized,
Source§fn insert(&mut self, other: Self)where
Self: Sized,
fn insert(&mut self, other: Self)where
Self: Sized,
|
) of the bits in two flags values.Source§fn remove(&mut self, other: Self)where
Self: Sized,
fn remove(&mut self, other: Self)where
Self: Sized,
&!
). Read moreSource§fn toggle(&mut self, other: Self)where
Self: Sized,
fn toggle(&mut self, other: Self)where
Self: Sized,
^
) of the bits in two flags values.Source§fn intersection(self, other: Self) -> Self
fn intersection(self, other: Self) -> Self
&
) of the bits in two flags values.Source§fn difference(self, other: Self) -> Self
fn difference(self, other: Self) -> Self
&!
). Read moreSource§fn symmetric_difference(self, other: Self) -> Self
fn symmetric_difference(self, other: Self) -> Self
^
) of the bits in two flags values.Source§fn complement(self) -> Self
fn complement(self) -> Self
!
) of the bits in a flags value, truncating the result.Source§impl FromIterator<VariantFlags> for VariantFlags
impl FromIterator<VariantFlags> for VariantFlags
Source§fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
The bitwise or (|
) of the bits in each flags value.
Source§impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for VariantFlags
impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for VariantFlags
fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher, )
Source§impl IntoIterator for VariantFlags
impl IntoIterator for VariantFlags
Source§impl LowerHex for VariantFlags
impl LowerHex for VariantFlags
Source§impl Not for VariantFlags
impl Not for VariantFlags
Source§impl Octal for VariantFlags
impl Octal for VariantFlags
Source§impl PartialEq for VariantFlags
impl PartialEq for VariantFlags
Source§impl Sub for VariantFlags
impl Sub for VariantFlags
Source§fn sub(self, other: Self) -> Self
fn sub(self, other: Self) -> Self
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
difference
won’t truncate other
, but the !
operator will.
Source§type Output = VariantFlags
type Output = VariantFlags
-
operator.Source§impl SubAssign for VariantFlags
impl SubAssign for VariantFlags
Source§fn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
difference
won’t truncate other
, but the !
operator will.
Source§impl UpperHex for VariantFlags
impl UpperHex for VariantFlags
impl Copy for VariantFlags
impl Eq for VariantFlags
impl StructuralPartialEq for VariantFlags
Auto Trait Implementations§
impl DynSend for VariantFlags
impl DynSync for VariantFlags
impl Freeze for VariantFlags
impl RefUnwindSafe for VariantFlags
impl Send for VariantFlags
impl Sync for VariantFlags
impl Unpin for VariantFlags
impl UnwindSafe for VariantFlags
Blanket Implementations§
Source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
Source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
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
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)Source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
Source§impl<Tcx, T> DepNodeParams<Tcx> for T
impl<Tcx, T> DepNodeParams<Tcx> for T
default fn fingerprint_style() -> FingerprintStyle
Source§default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_debug_str(&self, _: Tcx) -> String
Source§default fn recover(_: Tcx, _: &DepNode) -> Option<T>
default fn recover(_: Tcx, _: &DepNode) -> Option<T>
DepNode
,
something which is needed when forcing DepNode
s during red-green
evaluation. The query system will only call this method if
fingerprint_style()
is not FingerprintStyle::Opaque
.
It is always valid to return None
here, in which case incremental
compilation will treat the query as having changed instead of forcing it.Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.Source§impl<T> Filterable for T
impl<T> Filterable for T
Source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
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impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
Source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
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Source§impl<Tcx, T> Value<Tcx> for Twhere
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
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Size: 1 byte