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polyfill
unpack1.rb
# frozen_string_literal: true # Polyfill for String#unpack1 with the offset parameter. Not all Ruby engines # have Method#parameters implemented, so we check the arity instead if # necessary. if (unpack1 = String.instance_method(:unpack1)).respond_to?(:parameters) ? unpack1.parameters.none? { |_, name| name == :offset } : (unpack1.arity == 1) String.prepend( Module.new { def unpack1(format, offset: 0) # :nodoc: offset == 0 ? super(format) : self[offset..].unpack1(format) # steep:ignore end } ) end
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