Class: Range

Inherits:
Object show all
Defined in:
lib/mug/clamp.rb

Instance Method Summary collapse

Instance Method Details

#bound(val) ⇒ Object

Bounds val so that first <= new_val <= last.

Returns first when val < first, last when val > last, otherwise val itself.

Raises an exception if val >= end and the range is exclusive.



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# File 'lib/mug/clamp.rb', line 30

def bound val
	a = first
	return a if val < a

	b = last
	if val >= b
		if exclude_end?
			raise ArgumentError, 'more than or equal to the exclusive range'
		end
		return b
	end

	val
end