class SyntaxTree::Parser
def find_colon2_before(const)
you could end up getting the wrong information if you have for instance
using find_token here because we don't pop off all of the :: operators so
A helper function to find a :: operator. We do special handling instead of
def find_colon2_before(const) index = tokens.rindex do |token| token.is_a?(Op) && token.value == "::" && token.location.start_char < const.location.start_char end tokens[index] end