Struct rustc_mir_build::build::matches::Candidate

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

impl<'tcx, 'pat> Candidate<'pat, 'tcx>

fn new(
    place: PlaceBuilder<'tcx>,
    pattern: &'pat Pat<'tcx>,
    has_guard: bool,
    cx: &Builder<'_, 'tcx>
) -> 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

impl<'pat, 'tcx> Debug for Candidate<'pat, 'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

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