# File lib/ruby-vpi/xx.rb, line 267
267:       def xx_which *argv
268: #--{{{
269:         @xx_which = nil unless defined? @xx_which
270:         if argv.empty?
271:           @xx_which
272:         else
273:           xx_which = @xx_which
274:           begin
275:             @xx_which = argv.shift
276:             return yield
277:           ensure
278:             @xx_which = xx_which
279:           end
280:         end
281: #--}}}
282:       end