# File lib/core/facets/enumerable/graph.rb, line 12 def graph(&yld) if yld h = {} each do |*kv| r = yld[*kv] case r when Hash nk, nv = *r.to_a[0] when Range nk, nv = r.first, r.last else nk, nv = *r end h[nk] = nv end h else Enumerator.new(self,:graph) end end