2021-01-13 17:40:46 +13:00

22 lines
932 B
Ruby

module FastJsonapi
class << self
# Calls either a Proc or a Lambda, making sure to never pass more parameters to it than it can receive
#
# @param [Proc] proc the Proc or Lambda to call
# @param [Array<Object>] *params any number of parameters to be passed to the Proc
# @return [Object] the result of the Proc call with the supplied parameters
def call_proc(proc, *params)
# The parameters array for a lambda created from a symbol (&:foo) differs
# from explictly defined procs/lambdas, so we can't deduce the number of
# parameters from the array length (and differs between Ruby 2.x and 3).
# In the case of negative arity -- unlimited/unknown argument count --
# just send the object to act as the method receiver.
if proc.arity.negative?
proc.call(params.first)
else
proc.call(*params.take(proc.parameters.length))
end
end
end
end