class Gem::OptionParser::Switch::OptionalArgument
Switch
that can omit argument.
Public Instance Methods
parse(arg, argv, &error)
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Parses argument if given, or uses default value.
# File rubygems/vendor/optparse/lib/optparse.rb, line 763 def parse(arg, argv, &error) if arg conv_arg(*parse_arg(arg, &error)) else omitted_argument conv_arg(arg) end end