Struct rustc_middle::ty::closure::CaptureInfo
source · pub struct CaptureInfo {
pub capture_kind_expr_id: Option<HirId>,
pub path_expr_id: Option<HirId>,
pub capture_kind: UpvarCapture,
}
Expand description
Part of MinCaptureInformationMap
; describes the capture kind (&, &mut, move)
for a particular capture as well as identifying the part of the source code
that triggered this capture to occur.
Fields
capture_kind_expr_id: Option<HirId>
Expr Id pointing to use that resulted in selecting the current capture kind
Eg:
let mut t = (0,1);
let c = || {
println!("{t:?}"); // L1
t.1 = 4; // L2
};
capture_kind_expr_id
will point to the use on L2 and path_expr_id
will point to the
use on L1.
If the user doesn’t enable feature capture_disjoint_fields
(RFC 2229) then, it is
possible that we don’t see the use of a particular place resulting in capture_kind_expr_id being
None. In such case we fallback on uvpars_mentioned for span.
Eg:
let x = 5;
let c = || {
let _ = x;
};
In this example, if capture_disjoint_fields
is not set, then x will be captured,
but we won’t see it being used during capture analysis, since it’s essentially a discard.
path_expr_id: Option<HirId>
Expr Id pointing to use that resulted the corresponding place being captured
See capture_kind_expr_id
for example.
capture_kind: UpvarCapture
Capture mode that was selected
Trait Implementations
sourceimpl Clone for CaptureInfo
impl Clone for CaptureInfo
sourcefn clone(&self) -> CaptureInfo
fn clone(&self) -> CaptureInfo
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl Debug for CaptureInfo
impl Debug for CaptureInfo
sourceimpl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for CaptureInfo
impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for CaptureInfo
sourceimpl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for CaptureInfo
impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for CaptureInfo
sourceimpl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CaptureInfo
impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CaptureInfo
fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
sourceimpl PartialEq<CaptureInfo> for CaptureInfo
impl PartialEq<CaptureInfo> for CaptureInfo
sourcefn eq(&self, other: &CaptureInfo) -> bool
fn eq(&self, other: &CaptureInfo) -> bool
sourceimpl<'tcx> TypeFoldable<'tcx> for CaptureInfo
impl<'tcx> TypeFoldable<'tcx> for CaptureInfo
sourcefn try_fold_with<__F: FallibleTypeFolder<'tcx>>(
self,
__folder: &mut __F
) -> Result<Self, __F::Error>
fn try_fold_with<__F: FallibleTypeFolder<'tcx>>(
self,
__folder: &mut __F
) -> Result<Self, __F::Error>
sourcefn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self
fn fold_with<F: TypeFolder<'tcx>>(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
. Read moresourceimpl<'tcx> TypeVisitable<'tcx> for CaptureInfo
impl<'tcx> TypeVisitable<'tcx> for CaptureInfo
sourcefn visit_with<__V: TypeVisitor<'tcx>>(
&self,
__visitor: &mut __V
) -> ControlFlow<__V::BreakTy>
fn visit_with<__V: TypeVisitor<'tcx>>(
&self,
__visitor: &mut __V
) -> ControlFlow<__V::BreakTy>
sourcefn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
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. Read moresourcefn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
true
if this self
has any regions that escape binder
(and
hence are not bound by it). Read morefn has_escaping_bound_vars(&self) -> bool
fn has_type_flags(&self, flags: TypeFlags) -> bool
fn has_projections(&self) -> bool
fn has_opaque_types(&self) -> bool
fn references_error(&self) -> bool
fn error_reported(&self) -> Option<ErrorGuaranteed>
fn has_param_types_or_consts(&self) -> bool
fn has_infer_regions(&self) -> bool
fn has_infer_types(&self) -> bool
fn has_infer_types_or_consts(&self) -> bool
fn needs_infer(&self) -> bool
fn has_placeholders(&self) -> bool
fn needs_subst(&self) -> bool
sourcefn has_free_regions(&self) -> bool
fn has_free_regions(&self) -> bool
fn has_erased_regions(&self) -> bool
sourcefn has_erasable_regions(&self) -> bool
fn has_erasable_regions(&self) -> bool
sourcefn is_global(&self) -> bool
fn is_global(&self) -> bool
sourcefn has_late_bound_regions(&self) -> bool
fn has_late_bound_regions(&self) -> bool
sourcefn still_further_specializable(&self) -> bool
fn still_further_specializable(&self) -> bool
impl
specialization. Read moreimpl Copy for CaptureInfo
impl StructuralPartialEq for CaptureInfo
Auto Trait Implementations
impl RefUnwindSafe for CaptureInfo
impl Send for CaptureInfo
impl Sync for CaptureInfo
impl Unpin for CaptureInfo
impl UnwindSafe for CaptureInfo
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
sourceimpl<Ctxt, T> DepNodeParams<Ctxt> for Twhere
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for Twhere
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
sourcedefault fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
default fn to_debug_str(&self, Ctxt) -> String
sourcedefault fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>
default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> 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. Read moresourceimpl<T, R> InternIteratorElement<T, R> for T
impl<T, R> InternIteratorElement<T, R> for T
type Output = R
fn intern_with<I, F>(iter: I, f: F) -> <T as InternIteratorElement<T, R>>::Outputwhere
I: Iterator<Item = T>,
F: FnOnce(&[T]) -> R,
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
sourceimpl<CTX, T> Value<CTX> for Twhere
CTX: DepContext,
impl<CTX, T> Value<CTX> for Twhere
CTX: DepContext,
default fn from_cycle_error(tcx: CTX) -> T
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
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: 20 bytes