cube-tube/lib/coalesce.rb

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# Handy null coalesing operator, taken from
# https://github.com/kibiz0r/coalesce/blob/bc4389ae8a8bb456cd10ec8a3523df1fc775124f/lib/coalesce.rb
class Object
def _?(x = nil)
self
end
end
class NilClass
def _?(x = nil)
if block_given?
yield
else
x
end
end
end