def bind_arguments(env: Scope, params: Node, args: Value) -> None:
if isinstance(params, Name) and args is NULL_PAIR_VALUE:
env.put(params.identifier, args)
return
while True:
if params is NULL_PAIR and args is NULL_PAIR_VALUE:
return
elif params is NULL_PAIR and args is not NULL_PAIR_VALUE:
raise ArgsNotFit('too many arguments')
elif params is not NULL_PAIR and args is NULL_PAIR_VALUE:
raise ArgsNotFit('missing arguments')
if isinstance(params, Pair):
name: Name = params.first
if not isinstance(args, PairValue):
raise ArgsNotFit('arguments does not match given number')
env.put(name.identifier, args.first)
params = params.second
elif isinstance(params, Name):
env.put(params.identifier, args)
return
def define(env: Scope, pattern: str, value: Value) -> None:
env.put(pattern, value)
