Sha256: 5887e3bc0026da5528f4d5ce1f59ccc90c503bf2b31629a2b8d7ef29b2cc7146
Contents?: true
Size: 776 Bytes
Versions: 13
Compression:
Stored size: 776 Bytes
Contents
class Proc
# Curry Proc object into new Proc object.
#
# TODO: Utilize Ruby 1.9's #curry method.
def curry(*args)
if args.empty?
idx = (0...arity).to_a
else
raise ArgumentError, "argument count is greater than prok.arity (#{args.size} > #{arity})" if args.size > arity
raise ArgumentError, "arguments must be unique indexes" if args.uniq != args
raise ArgumentError, "arguments must be indexes" if args.any?{ |a| !Fixnum===a }
idx = (0...arity).to_a
idx = args + (idx - args)
end
pro = self
rec = ''
idx.each do |i|
rec << "proc { |a#{i}| "
end
rec << "pro["
rec << (0...arity).to_a.collect{|i| "a#{i}"}.join(',')
rec << "]"
rec << "}" * arity
instance_eval rec
end
end
Version data entries
13 entries across 12 versions & 1 rubygems