def inner(*args):
arg_count = len(args)
if arg_count == 0 or arg_count == 1 and args[0] is __:
return inner
elif arg_count == 1:
return _curry1(lambda _b: fn(args[0], _b))
elif args[0] is __ and args[1] is __:
return inner
elif args[0] is __:
return _curry1(lambda _b: fn(args[1], _b))
elif args[1] is __:
return _curry1(lambda _b: fn(args[0], _b))
else:
return fn(*args)
def inner(*args):
arg_count = len(args)
if arg_count == 0:
return inner
elif arg_count == 1:
if args[0] is __:
return inner
else:
return _curry2(wrapper(lambda _b, _c: fn(args[0], _b, _c)))
elif arg_count == 2:
if args[0] is __ and args[1] is __:
return inner
elif args[0] is __:
return _curry2(wrapper(lambda _b, _c: fn(args[1], _b, _c)))
elif args[1] is __:
return _curry2(wrapper(lambda _b, _c: fn(args[0], _b, _c)))
else:
return _curry1(wrapper(lambda _c: fn(args[0], args[1], _c)))
else:
if args[0] is __ and args[1] is __ and args[2] is __:
# All three arguments are placeholders, star again.
return inner
elif args[1] is __ and args[2] is __:
# Only the first argument is non-placeholder, curry remaining
return _curry2(wrapper(lambda _b, _c: fn(args[0], _b, _c)))
elif args[2] is __:
# The first and second arguments are non-placeholders,
# curry the third argument.
return _curry1(wrapper(lambda _c: fn(args[0], args[1], _c)))
elif args[1] is __:
# The first and third arguments are non-placeholders,
# curry the second argument.
return _curry1(wrapper(lambda _b: fn(args[0], _b, args[2])))
elif args[0] is __ and args[2] is __:
# Only the second argument is non-placeholder,
# curry the first and third arguments.
return _curry2(wrapper(lambda _a, _c: fn(_a, args[1], _c)))
elif args[0] is __:
# The second and third arguments are non-placeholders,
# curry the first argument
return _curry1(wrapper(lambda _a: fn(_a, args[1], args[2])))
elif args[0] is __ and args[1] is __:
# Only the third argument is a placeholder,
# curry the first and second arguments
return _curry2(wrapper(lambda _a, _b: fn(_a, _b, args[2])))
else:
# Three non-placeholder values discovered, apply function
return fn(*args)
