Struct rustc_type_ir::CoroutineClosureSignature
source · pub struct CoroutineClosureSignature<I: Interner> {
pub interior: I::Ty,
pub tupled_inputs_ty: I::Ty,
pub resume_ty: I::Ty,
pub yield_ty: I::Ty,
pub return_ty: I::Ty,
pub c_variadic: bool,
pub safety: I::Safety,
pub abi: I::Abi,
}
Fields§
§interior: I::Ty
§tupled_inputs_ty: I::Ty
§resume_ty: I::Ty
§yield_ty: I::Ty
§return_ty: I::Ty
§c_variadic: bool
Always false
safety: I::Safety
Always Normal
(safe)
abi: I::Abi
Always RustCall
Implementations§
source§impl<I: Interner> CoroutineClosureSignature<I>
impl<I: Interner> CoroutineClosureSignature<I>
sourcepub fn to_coroutine(
self,
cx: I,
parent_args: I::GenericArgsSlice,
coroutine_kind_ty: I::Ty,
coroutine_def_id: I::DefId,
tupled_upvars_ty: I::Ty,
) -> I::Ty
pub fn to_coroutine( self, cx: I, parent_args: I::GenericArgsSlice, coroutine_kind_ty: I::Ty, coroutine_def_id: I::DefId, tupled_upvars_ty: I::Ty, ) -> I::Ty
Construct a coroutine from the closure signature. Since a coroutine signature is agnostic to the type of generator that is returned (by-ref/by-move), the caller must specify what “flavor” of generator that they’d like to create. Additionally, they must manually compute the upvars of the closure.
This helper is not really meant to be used directly except for early on during typeck, when we want to put inference vars into the kind and upvars tys. When the kind and upvars are known, use the other helper functions.
sourcepub fn to_coroutine_given_kind_and_upvars(
self,
cx: I,
parent_args: I::GenericArgsSlice,
coroutine_def_id: I::DefId,
goal_kind: ClosureKind,
env_region: I::Region,
closure_tupled_upvars_ty: I::Ty,
coroutine_captures_by_ref_ty: I::Ty,
) -> I::Ty
pub fn to_coroutine_given_kind_and_upvars( self, cx: I, parent_args: I::GenericArgsSlice, coroutine_def_id: I::DefId, goal_kind: ClosureKind, env_region: I::Region, closure_tupled_upvars_ty: I::Ty, coroutine_captures_by_ref_ty: I::Ty, ) -> I::Ty
Given known upvars and a ClosureKind
, compute the coroutine
returned by that corresponding async fn trait.
This function expects the upvars to have been computed already, and doesn’t check
that the ClosureKind
is actually supported by the coroutine-closure.
sourcepub fn tupled_upvars_by_closure_kind(
cx: I,
kind: ClosureKind,
tupled_inputs_ty: I::Ty,
closure_tupled_upvars_ty: I::Ty,
coroutine_captures_by_ref_ty: I::Ty,
env_region: I::Region,
) -> I::Ty
pub fn tupled_upvars_by_closure_kind( cx: I, kind: ClosureKind, tupled_inputs_ty: I::Ty, closure_tupled_upvars_ty: I::Ty, coroutine_captures_by_ref_ty: I::Ty, env_region: I::Region, ) -> I::Ty
Compute the tupled upvars that a coroutine-closure’s output coroutine
would return for the given ClosureKind
.
When ClosureKind
is FnMut
/Fn
, then this will use the “captures by ref”
to return a set of upvars which are borrowed with the given env_region
.
This ensures that the AsyncFn::call
will return a coroutine whose upvars’
lifetimes are related to the lifetime of the borrow on the closure made for
the call. This allows borrowck to enforce the self-borrows correctly.
Trait Implementations§
source§impl<I: Interner> Clone for CoroutineClosureSignature<I>
impl<I: Interner> Clone for CoroutineClosureSignature<I>
source§impl<I: Interner> Debug for CoroutineClosureSignature<I>
impl<I: Interner> Debug for CoroutineClosureSignature<I>
source§impl<I: Interner> Hash for CoroutineClosureSignature<I>
impl<I: Interner> Hash for CoroutineClosureSignature<I>
source§impl<I: Interner> PartialEq for CoroutineClosureSignature<I>
impl<I: Interner> PartialEq for CoroutineClosureSignature<I>
source§impl<I> TypeFoldable<I> for CoroutineClosureSignature<I>
impl<I> TypeFoldable<I> for CoroutineClosureSignature<I>
source§fn try_fold_with<__F: FallibleTypeFolder<I>>(
self,
__folder: &mut __F,
) -> Result<Self, __F::Error>
fn try_fold_with<__F: FallibleTypeFolder<I>>( self, __folder: &mut __F, ) -> Result<Self, __F::Error>
source§fn fold_with<F: TypeFolder<I>>(self, folder: &mut F) -> Self
fn fold_with<F: TypeFolder<I>>(self, folder: &mut F) -> Self
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 CoroutineClosureSignature<I>
impl<I> TypeVisitable<I> for CoroutineClosureSignature<I>
source§fn visit_with<__V: TypeVisitor<I>>(&self, __visitor: &mut __V) -> __V::Result
fn visit_with<__V: TypeVisitor<I>>(&self, __visitor: &mut __V) -> __V::Result
impl<I: Interner> Copy for CoroutineClosureSignature<I>
impl<I: Interner> Eq for CoroutineClosureSignature<I>
Auto Trait Implementations§
impl<I> Freeze for CoroutineClosureSignature<I>
impl<I> RefUnwindSafe for CoroutineClosureSignature<I>where
<I as Interner>::Ty: RefUnwindSafe,
<I as Interner>::Safety: RefUnwindSafe,
<I as Interner>::Abi: RefUnwindSafe,
impl<I> Send for CoroutineClosureSignature<I>
impl<I> Sync for CoroutineClosureSignature<I>
impl<I> Unpin for CoroutineClosureSignature<I>
impl<I> UnwindSafe for CoroutineClosureSignature<I>where
<I as Interner>::Ty: UnwindSafe,
<I as Interner>::Safety: UnwindSafe,
<I as Interner>::Abi: UnwindSafe,
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fn borrow_mut(&mut self) -> &mut T
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unsafe fn clone_to_uninit(&self, dst: *mut T)
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default unsafe fn clone_to_uninit(&self, dst: *mut T)
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source§fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
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