Struct rustc_trait_selection::infer::canonical::ir::CoroutineArgs

source ·
pub struct CoroutineArgs<I>
where I: Interner,
{ pub args: <I as Interner>::GenericArgs, }
Expand description

Similar to ClosureArgs; see the above documentation for more.

Fields§

§args: <I as Interner>::GenericArgs

Implementations§

source§

impl<I> CoroutineArgs<I>
where I: Interner,

source

pub fn new(cx: I, parts: CoroutineArgsParts<I>) -> CoroutineArgs<I>

Construct CoroutineArgs from CoroutineArgsParts, containing Args for the coroutine parent, alongside additional coroutine-specific components.

source

pub fn parent_args(self) -> <I as Interner>::GenericArgsSlice

Returns the generic parameters of the coroutine’s parent.

source

pub fn kind_ty(self) -> <I as Interner>::Ty

source

pub fn witness(self) -> <I as Interner>::Ty

This describes the types that can be contained in a coroutine. It will be a type variable initially and unified in the last stages of typeck of a body. It contains a tuple of all the types that could end up on a coroutine frame. The state transformation MIR pass may only produce layouts which mention types in this tuple. Upvars are not counted here.

source

pub fn upvar_tys(self) -> <I as Interner>::Tys

Returns an iterator over the list of types of captured paths by the coroutine. In case there was a type error in figuring out the types of the captured path, an empty iterator is returned.

source

pub fn tupled_upvars_ty(self) -> <I as Interner>::Ty

Returns the tuple type representing the upvars for this coroutine.

source

pub fn resume_ty(self) -> <I as Interner>::Ty

Returns the type representing the resume type of the coroutine.

source

pub fn yield_ty(self) -> <I as Interner>::Ty

Returns the type representing the yield type of the coroutine.

source

pub fn return_ty(self) -> <I as Interner>::Ty

Returns the type representing the return type of the coroutine.

source

pub fn sig(self) -> GenSig<I>

Returns the “coroutine signature”, which consists of its resume, yield and return types.

Trait Implementations§

source§

impl<I> Clone for CoroutineArgs<I>
where I: Interner,

source§

fn clone(&self) -> CoroutineArgs<I>

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
source§

impl<'tcx> CoroutineArgsExt<'tcx> for CoroutineArgs<TyCtxt<'tcx>>

source§

const UNRESUMED: usize = 0usize

Coroutine has not been resumed yet.

source§

const RETURNED: usize = 1usize

Coroutine has returned or is completed.

source§

const POISONED: usize = 2usize

Coroutine has been poisoned.

source§

const RESERVED_VARIANTS: usize = 3usize

Number of variants to reserve in coroutine state. Corresponds to UNRESUMED (beginning of a coroutine) and RETURNED/POISONED (end of a coroutine) states.

source§

fn variant_range(&self, def_id: DefId, tcx: TyCtxt<'tcx>) -> Range<VariantIdx>

The valid variant indices of this coroutine.

source§

fn discriminant_for_variant( &self, def_id: DefId, tcx: TyCtxt<'tcx>, variant_index: VariantIdx, ) -> Discr<'tcx>

The discriminant for the given variant. Panics if the variant_index is out of range.

source§

fn discriminants( self, def_id: DefId, tcx: TyCtxt<'tcx>, ) -> impl Iterator<Item = (VariantIdx, Discr<'tcx>)> + Captures<'tcx>

The set of all discriminants for the coroutine, enumerated with their variant indices.

source§

fn variant_name(v: VariantIdx) -> Cow<'static, str>

Calls f with a reference to the name of the enumerator for the given variant v.

source§

fn discr_ty(&self, tcx: TyCtxt<'tcx>) -> Ty<'tcx>

The type of the state discriminant used in the coroutine type.

source§

fn state_tys( self, def_id: DefId, tcx: TyCtxt<'tcx>, ) -> impl Iterator + Iterator<Item = Ty<'tcx>> + Captures<'tcx>

This returns the types of the MIR locals which had to be stored across suspension points. It is calculated in rustc_mir_transform::coroutine::StateTransform. All the types here must be in the tuple in CoroutineInterior.

The locals are grouped by their variant number. Note that some locals may be repeated in multiple variants.

source§

fn prefix_tys(self) -> &'tcx RawList<(), Ty<'tcx>>

This is the types of the fields of a coroutine which are not stored in a variant.

source§

const UNRESUMED_NAME: &'static str = "Unresumed"

source§

const RETURNED_NAME: &'static str = "Returned"

source§

const POISONED_NAME: &'static str = "Panicked"

source§

impl<I> Debug for CoroutineArgs<I>
where I: Interner,

source§

fn fmt(&self, __f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
source§

impl<I> Hash for CoroutineArgs<I>
where I: Interner,

source§

fn hash<__H>(&self, __state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
source§

impl<I, J> Lift<J> for CoroutineArgs<I>
where I: Interner, J: Interner, <I as Interner>::GenericArgs: Lift<J, Lifted = <J as Interner>::GenericArgs>,

source§

impl<I> PartialEq for CoroutineArgs<I>
where I: Interner,

source§

fn eq(&self, __other: &CoroutineArgs<I>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl<I> TypeFoldable<I> for CoroutineArgs<I>
where I: Interner, <I as Interner>::GenericArgs: TypeFoldable<I>,

source§

fn try_fold_with<__F>( self, __folder: &mut __F, ) -> Result<CoroutineArgs<I>, <__F as FallibleTypeFolder<I>>::Error>
where __F: FallibleTypeFolder<I>,

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f). Read more
source§

fn fold_with<F>(self, folder: &mut F) -> Self
where F: TypeFolder<I>,

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.
source§

impl<I> TypeVisitable<I> for CoroutineArgs<I>

source§

fn visit_with<__V>( &self, __visitor: &mut __V, ) -> <__V as TypeVisitor<I>>::Result
where __V: TypeVisitor<I>,

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v). Read more
source§

impl<I> Copy for CoroutineArgs<I>
where I: Interner,

source§

impl<I> Eq for CoroutineArgs<I>
where I: Interner,

Auto Trait Implementations§

§

impl<I> Freeze for CoroutineArgs<I>
where <I as Interner>::GenericArgs: Freeze,

§

impl<I> RefUnwindSafe for CoroutineArgs<I>

§

impl<I> Send for CoroutineArgs<I>
where <I as Interner>::GenericArgs: Send,

§

impl<I> Sync for CoroutineArgs<I>
where <I as Interner>::GenericArgs: Sync,

§

impl<I> Unpin for CoroutineArgs<I>
where <I as Interner>::GenericArgs: Unpin,

§

impl<I> UnwindSafe for CoroutineArgs<I>

Blanket Implementations§

source§

impl<T> Aligned for T

source§

const ALIGN: Alignment = _

Alignment of Self.
source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> AnyEq for T
where T: Any + PartialEq,

source§

fn equals(&self, other: &(dyn Any + 'static)) -> bool

source§

fn as_any(&self) -> &(dyn Any + 'static)

source§

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

source§

fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

source§

fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]

source§

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

source§

fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

source§

fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]

source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
source§

impl<T, R> CollectAndApply<T, R> for T

source§

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

source§

type Output = R

source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> Filterable for T

source§

fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> IntoEither for T

source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts 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 more
source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

impl<P> IntoQueryParam<P> for P

source§

impl<'tcx, T> IsSuggestable<'tcx> for T
where T: TypeVisitable<TyCtxt<'tcx>> + TypeFoldable<TyCtxt<'tcx>>,

source§

fn is_suggestable(self, tcx: TyCtxt<'tcx>, infer_suggestable: bool) -> bool

Whether this makes sense to suggest in a diagnostic. Read more
source§

fn make_suggestable( self, tcx: TyCtxt<'tcx>, infer_suggestable: bool, placeholder: Option<Ty<'tcx>>, ) -> Option<T>

source§

impl<T> MaybeResult<T> for T

source§

type Error = !

source§

fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

source§

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

source§

impl<T> Same for T

source§

type Output = T

Should always be Self
source§

impl<T> ToOwned for T
where T: Clone,

source§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

source§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<I, T> TypeVisitableExt<I> for T
where I: Interner, T: TypeVisitable<I>,

source§

fn has_type_flags(&self, flags: TypeFlags) -> bool

source§

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. If binder is ty::INNERMOST, this indicates whether there are any late-bound regions that appear free.
source§

fn error_reported(&self) -> Result<(), <I as Interner>::ErrorGuaranteed>

source§

fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool

Returns true if this type has any regions that escape binder (and hence are not bound by it).
source§

fn has_escaping_bound_vars(&self) -> bool

Return true 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 more
source§

fn has_aliases(&self) -> bool

source§

fn has_opaque_types(&self) -> bool

source§

fn has_coroutines(&self) -> bool

source§

fn references_error(&self) -> bool

source§

fn has_non_region_param(&self) -> bool

source§

fn has_infer_regions(&self) -> bool

source§

fn has_infer_types(&self) -> bool

source§

fn has_non_region_infer(&self) -> bool

source§

fn has_infer(&self) -> bool

source§

fn has_placeholders(&self) -> bool

source§

fn has_non_region_placeholders(&self) -> bool

source§

fn has_param(&self) -> bool

source§

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.
source§

fn has_erased_regions(&self) -> bool

source§

fn has_erasable_regions(&self) -> bool

True if there are any un-erased free regions.
source§

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

True if there are any late-bound regions
source§

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

True if there are any bound variables
source§

fn still_further_specializable(&self) -> bool

Indicates whether this value still has parameters/placeholders/inference variables which could be replaced later, in a way that would change the results of impl specialization.
source§

impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

source§

fn upcast(self, interner: I) -> U

source§

impl<I, T> UpcastFrom<I, T> for T

source§

fn upcast_from(from: T, _tcx: I) -> T

source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

source§

fn vzip(self) -> V

source§

impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

source§

default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

impl<'a, T> Captures<'a> for T
where T: ?Sized,

source§

impl<T> ErasedDestructor for T
where T: 'static,

source§

impl<T> MaybeSendSync for T

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.