pub struct RegionVid {
private_use_as_methods_instead: u32,
}
Expand description
A region variable ID.
Fields§
§private_use_as_methods_instead: u32
Implementations§
source§impl RegionVid
impl RegionVid
sourcepub const MAX_AS_U32: u32 = 4_294_967_040u32
pub const MAX_AS_U32: u32 = 4_294_967_040u32
Maximum value the index can take, as a u32
.
sourcepub const fn from_usize(value: usize) -> RegionVid
pub const fn from_usize(value: usize) -> RegionVid
sourcepub const unsafe fn from_u32_unchecked(value: u32) -> RegionVid
pub const unsafe fn from_u32_unchecked(value: u32) -> RegionVid
Creates a new index from a given u32
.
§Safety
The provided value must be less than or equal to the maximum value for the newtype. Providing a value outside this range is undefined due to layout restrictions.
Prefer using from_u32
.
Trait Implementations§
source§impl<__CTX> HashStable<__CTX> for RegionVid
impl<__CTX> HashStable<__CTX> for RegionVid
fn hash_stable( &self, __hcx: &mut __CTX, __hasher: &mut StableHasher<SipHasher128>, )
source§impl Ord for RegionVid
impl Ord for RegionVid
source§impl PartialOrd for RegionVid
impl PartialOrd for RegionVid
source§impl Step for RegionVid
impl Step for RegionVid
source§fn steps_between(start: &RegionVid, end: &RegionVid) -> Option<usize>
fn steps_between(start: &RegionVid, end: &RegionVid) -> Option<usize>
🔬This is a nightly-only experimental API. (
step_trait
)source§fn forward_checked(start: RegionVid, u: usize) -> Option<RegionVid>
fn forward_checked(start: RegionVid, u: usize) -> Option<RegionVid>
🔬This is a nightly-only experimental API. (
step_trait
)source§fn backward_checked(start: RegionVid, u: usize) -> Option<RegionVid>
fn backward_checked(start: RegionVid, u: usize) -> Option<RegionVid>
🔬This is a nightly-only experimental API. (
step_trait
)source§fn forward(start: Self, count: usize) -> Self
fn forward(start: Self, count: usize) -> Self
🔬This is a nightly-only experimental API. (
step_trait
)source§unsafe fn forward_unchecked(start: Self, count: usize) -> Self
unsafe fn forward_unchecked(start: Self, count: usize) -> Self
🔬This is a nightly-only experimental API. (
step_trait
)source§fn backward(start: Self, count: usize) -> Self
fn backward(start: Self, count: usize) -> Self
🔬This is a nightly-only experimental API. (
step_trait
)source§unsafe fn backward_unchecked(start: Self, count: usize) -> Self
unsafe fn backward_unchecked(start: Self, count: usize) -> Self
🔬This is a nightly-only experimental API. (
step_trait
)source§impl<I> TypeFoldable<I> for RegionVidwhere
I: Interner,
impl<I> TypeFoldable<I> for RegionVidwhere
I: Interner,
source§fn try_fold_with<F>(
self,
_: &mut F,
) -> Result<RegionVid, <F as FallibleTypeFolder<I>>::Error>where
F: FallibleTypeFolder<I>,
fn try_fold_with<F>(
self,
_: &mut F,
) -> Result<RegionVid, <F as FallibleTypeFolder<I>>::Error>where
F: FallibleTypeFolder<I>,
source§impl<I> TypeVisitable<I> for RegionVidwhere
I: Interner,
impl<I> TypeVisitable<I> for RegionVidwhere
I: Interner,
source§fn visit_with<F>(&self, _: &mut F) -> <F as TypeVisitor<I>>::Resultwhere
F: TypeVisitor<I>,
fn visit_with<F>(&self, _: &mut F) -> <F as TypeVisitor<I>>::Resultwhere
F: TypeVisitor<I>,
impl Copy for RegionVid
impl Eq for RegionVid
impl StructuralPartialEq for RegionVid
Auto Trait Implementations§
impl Freeze for RegionVid
impl RefUnwindSafe for RegionVid
impl Send for RegionVid
impl Sync for RegionVid
impl Unpin for RegionVid
impl UnwindSafe for RegionVid
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<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
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T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
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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
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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)
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clone_to_uninit
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source§default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
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default fn recover(_: Tcx, _: &DepNode) -> Option<T>
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impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
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impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
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source§fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
Returns
true
if self
has any late-bound regions that are either
bound by binder
or bound by some binder outside of binder
.
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, this indicates whether
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fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
Returns
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hence are not bound by it).source§fn has_escaping_bound_vars(&self) -> bool
fn has_escaping_bound_vars(&self) -> bool
Return
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if this type has regions that are not a part of the type.
For example, for<'a> fn(&'a i32)
return false
, while fn(&'a i32)
would return true
. The latter can occur when traversing through the
former. Read morefn has_aliases(&self) -> bool
fn has_opaque_types(&self) -> bool
fn has_coroutines(&self) -> bool
fn references_error(&self) -> bool
fn has_non_region_param(&self) -> bool
fn has_infer_regions(&self) -> bool
fn has_infer_types(&self) -> bool
fn has_non_region_infer(&self) -> bool
fn has_infer(&self) -> bool
fn has_placeholders(&self) -> bool
fn has_non_region_placeholders(&self) -> bool
fn has_param(&self) -> bool
source§fn has_free_regions(&self) -> bool
fn has_free_regions(&self) -> bool
“Free” regions in this context means that it has any region
that is not (a) erased or (b) late-bound.
fn has_erased_regions(&self) -> bool
source§fn has_erasable_regions(&self) -> bool
fn has_erasable_regions(&self) -> bool
True if there are any un-erased free regions.
source§fn is_global(&self) -> bool
fn is_global(&self) -> bool
Indicates whether this value references only ‘global’
generic parameters that are the same regardless of what fn we are
in. This is used for caching.
source§fn has_bound_regions(&self) -> bool
fn has_bound_regions(&self) -> bool
True if there are any late-bound regions
source§fn has_non_region_bound_vars(&self) -> bool
fn has_non_region_bound_vars(&self) -> bool
True if there are any late-bound non-region variables
source§fn has_bound_vars(&self) -> bool
fn has_bound_vars(&self) -> bool
True if there are any bound variables
source§fn still_further_specializable(&self) -> bool
fn still_further_specializable(&self) -> bool
Indicates whether this value still has parameters/placeholders/inference variables
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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