def simple_dispatch(self, *args, **kwargs):
assert self.f is not None
args = flatargs(self.f, args, kwargs)
types = list(map(T.typeof, args))
candidates = find_matches(self.overloads, types)
if len(candidates) != 1:
raise error.OverloadError(
"Cannot perform simple dispatch with %d input types")
[dst_sig, sig, func] = candidates
# TODO: convert argument types using dst_sig
return func(*args)
def lookup_dispatcher(self, args, kwargs, constraints=None):
assert self.f is not None
args = flatargs(self.f, tuple(args), kwargs)
types = list(map(T.typeof, args))
match = best_match(self, types, constraints)
return match, args
