def set_spec_from_line_number
if examples.empty?
if files.length == 1
if File.directory?(files[0])
error_stream.puts "You must specify one file, not a directory when using the --line option"
exit(1) if stderr?
else
example = SpecParser.new.spec_name_for(files[0], line_number)
@examples = [example]
end
else
error_stream.puts "Only one file can be specified when using the --line option: #{files.inspect}"
exit(3) if stderr?
end
else
error_stream.puts "You cannot use both --line and --example"
exit(4) if stderr?
end
end