rustc_mir_build::thir::pattern::check_match

Function report_unreachable_pattern

Source 
fn report_unreachable_pattern<'p, 'tcx>(
    cx: &RustcPatCtxt<'p, 'tcx>,
    hir_id: HirId,
    pat: &DeconstructedPat<'p, 'tcx>,
    explanation: &RedundancyExplanation<'p, 'tcx>,
    whole_arm_span: Option<Span>,
)
Expand description

Report unreachable arms, if any.