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is_const_pat_that_looks_like_binding

rustc_mir_build::thir::pattern::check_match

Function is_const_pat_that_looks_like_binding 

Source 
fn is_const_pat_that_looks_like_binding<'tcx>(
    tcx: TyCtxt<'tcx>,
    pat: &Pat<'tcx>,
) -> Option<DefId>
Expand description

If the given pattern is a named constant that looks like it could have been intended to be a binding, returns the DefId of the named constant.

Diagnostics use this to give more detailed suggestions for non-exhaustive matches.