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>
impl<'a, 'p, 'tcx> !UnwindSafe for PatCtxt<'a, 'p, 'tcx>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
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
Mutably borrows from an owned value. Read more
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