Struct rustc_mir_build::build::matches::Candidate
source · struct Candidate<'pat, 'tcx> {
span: Span,
has_guard: bool,
match_pairs: SmallVec<[MatchPair<'pat, 'tcx>; 1]>,
bindings: Vec<Binding<'tcx>>,
ascriptions: Vec<Ascription<'tcx>>,
subcandidates: Vec<Candidate<'pat, 'tcx>>,
otherwise_block: Option<BasicBlock>,
pre_binding_block: Option<BasicBlock>,
next_candidate_pre_binding_block: Option<BasicBlock>,
}
Fields§
§span: Span
Span
of the original pattern that gave rise to this candidate.
has_guard: bool
Whether this Candidate
has a guard.
match_pairs: SmallVec<[MatchPair<'pat, 'tcx>; 1]>
All of these must be satisfied…
bindings: Vec<Binding<'tcx>>
…these bindings established…
ascriptions: Vec<Ascription<'tcx>>
…and these types asserted…
subcandidates: Vec<Candidate<'pat, 'tcx>>
…and if this is non-empty, one of these subcandidates also has to match…
otherwise_block: Option<BasicBlock>
…and the guard must be evaluated; if it’s false
then branch to otherwise_block
.
pre_binding_block: Option<BasicBlock>
The block before the bindings
have been established.
next_candidate_pre_binding_block: Option<BasicBlock>
The pre-binding block of the next candidate.
Implementations§
source§impl<'tcx, 'pat> Candidate<'pat, 'tcx>
impl<'tcx, 'pat> Candidate<'pat, 'tcx>
fn new( place: PlaceBuilder<'tcx>, pattern: &'pat Pat<'tcx>, has_guard: bool, cx: &Builder<'_, 'tcx> ) -> Self
sourcefn visit_leaves<'a>(&'a mut self, visit_leaf: impl FnMut(&'a mut Self))
fn visit_leaves<'a>(&'a mut self, visit_leaf: impl FnMut(&'a mut Self))
Visit the leaf candidates (those with no subcandidates) contained in this candidate.
Trait Implementations§
Auto Trait Implementations§
impl<'pat, 'tcx> !RefUnwindSafe for Candidate<'pat, 'tcx>
impl<'pat, 'tcx> !Send for Candidate<'pat, 'tcx>
impl<'pat, 'tcx> !Sync for Candidate<'pat, 'tcx>
impl<'pat, 'tcx> Unpin for Candidate<'pat, 'tcx>
impl<'pat, 'tcx> !UnwindSafe for Candidate<'pat, '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
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: 152 bytes