# frozen_string_literal: true
# Polyfill for Kernel#warn with the category parameter. Not all Ruby engines
# have Method#parameters implemented, so we check the arity instead if
# necessary.
if (method = Kernel.instance_method(:warn)).respond_to?(:parameters) ? method.parameters.none? { |_, name| name == :category } : (method.arity == -1)
Kernel.prepend(
Module.new {
def warn(*msgs, uplevel: nil, category: nil) # :nodoc:
case uplevel
when nil
super(*msgs)
when Integer
super(*msgs, uplevel: uplevel + 1)
else
super(*msgs, uplevel: uplevel.to_int + 1)
end
end
}
)
Object.prepend(
Module.new {
def warn(*msgs, uplevel: nil, category: nil) # :nodoc:
case uplevel
when nil
super(*msgs)
when Integer
super(*msgs, uplevel: uplevel + 1)
else
super(*msgs, uplevel: uplevel.to_int + 1)
end
end
}
)
end
