with_no_such_dependency_error_handling

# File lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb, line 68
      def with_no_such_dependency_error_handling
        yield
      rescue NoSuchDependencyError => error
        if state
          vertex = activated.vertex_named(name_for(error.dependency))
          error.required_by += vertex.incoming_edges.map { |e| e.origin.name }
          error.required_by << name_for_explicit_dependency_source unless vertex.explicit_requirements.empty?
        end
        raise
      end