RubyParser::StackState

     # File lib/ruby_parser_extras.rb, line 969
969:   def initialize(name)
970:     @name = name
971:     @stack = [false]
972:   end

     # File lib/ruby_parser_extras.rb, line 974
974:   def inspect
975:     "StackState(#{@name}, #{@stack.inspect})"
976:   end

     # File lib/ruby_parser_extras.rb, line 978
978:   def is_in_state
979:     @stack.last
980:   end

     # File lib/ruby_parser_extras.rb, line 982
982:   def lexpop
983:     raise if @stack.size == 0
984:     a = @stack.pop
985:     b = @stack.pop
986:     @stack.push(a || b)
987:   end

     # File lib/ruby_parser_extras.rb, line 989
989:   def pop
990:     r = @stack.pop
991:     @stack.push false if @stack.size == 0
992:     r
993:   end

     # File lib/ruby_parser_extras.rb, line 995
995:   def push val
996:     @stack.push val
997:   end