Struct rustc_mir_build::thir::pattern::usefulness::PatCtxt
source · pub(super) struct PatCtxt<'a, 'p, 'tcx> {
pub(super) cx: &'a MatchCheckCtxt<'p, 'tcx>,
pub(super) ty: Ty<'tcx>,
pub(super) span: Span,
pub(super) is_top_level: bool,
pub(super) is_non_exhaustive: bool,
}
Fields
cx: &'a MatchCheckCtxt<'p, 'tcx>
ty: Ty<'tcx>
Type of the current column under investigation.
span: Span
Span of the current pattern under investigation.
is_top_level: bool
Whether the current pattern is the whole pattern as found in a match arm, or if it’s a subpattern.
is_non_exhaustive: bool
Whether the current pattern is from a non_exhaustive
enum.
Trait Implementations
impl<'a, 'p, 'tcx> Copy for PatCtxt<'a, 'p, 'tcx>
Auto Trait Implementations
impl<'a, 'p, 'tcx> !RefUnwindSafe for PatCtxt<'a, 'p, 'tcx>
impl<'a, 'p, 'tcx> !Send for PatCtxt<'a, 'p, 'tcx>
impl<'a, 'p, 'tcx> !Sync for PatCtxt<'a, 'p, 'tcx>
impl<'a, 'p, 'tcx> Unpin for PatCtxt<'a, 'p, 'tcx>where
'p: 'a,
'tcx: 'a,
impl<'a, 'p, 'tcx> !UnwindSafe for PatCtxt<'a, 'p, 'tcx>
Blanket Implementations
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
Mutably borrows from an owned value. Read more
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: 32 bytes