def format_args
args = statement.parameters
params = []
if args.unnamed_required_params
params += args.unnamed_required_params.map { |a| [a.source, nil] }
end
if args.unnamed_optional_params
params += args.unnamed_optional_params.map do |a|
[a[0].source, a[1].source]
end
end
if args.splat_param
params << ['*' + args.splat_param.source, nil]
end
if args.unnamed_end_params
params += args.unnamed_end_params.map { |a| [a.source, nil] }
end
if args.named_params
params += args.named_params.map do |a|
[a[0].source, a[1] ? a[1].source : nil]
end
end
if args.double_splat_param
params << ['**' + args.double_splat_param.source, nil]
end
if args.block_param
params << ['&' + args.block_param.source, nil]
end
params
end