module Riffer::Helpers::CallOrValue

Resolves the Proc-or-value idiom.

Public Instance Methods

resolve (thing, context: nil, default: nil)

Source

# File lib/riffer/helpers/call_or_value.rb, line 12
def resolve(thing, context: nil, default: nil)
  return default if thing.nil?
  return thing unless thing.is_a?(Proc)
  thing.arity.zero? ? thing.call : thing.call(context)
end

Calls thing when it’s a Proc (passing context if its arity is non-zero), returns it unchanged otherwise, or default when nil.