lgerardSRI/parsimonious — pull request #2 by lgerardSRI (2014-04-30 23:17:26+00:00)
Title: Refactor RuleVisitor._resolve_refs

When resolving circular references it is necessary to avoid infinite
recursion. Previously this was done by tracking unwalked_names and
walking_names. Now infinite recursion is prevented by setting
expr.members to None while recursively resolving member expressions.

Note relying on top-level, vs non toplevel (name equl to '' or not) is good.