Function rustc_mir_transform::coverage::debug::span_viewables

fn span_viewables<'tcx>(
    tcx: TyCtxt<'tcx>, 
    mir_body: &Body<'tcx>, 
    basic_coverage_blocks: &CoverageGraph, 
    coverage_spans: &Vec<CoverageSpan>
) -> Vec<SpanViewable>

Converts the computed BasicCoverageBlockDatas into SpanViewables.