def extract_tuple_eltypes(tuple_type, n):
"""
Extract the element types from the (static) tuple type and return them
in a tuple.
"""
if typematch(tuple_type, StaticTuple):
return extract_statictuple_eltypes(tuple_type)
else:
assert typematch(tuple_type, GenericTuple), tuple_type
base_type = tuple_type.parameters[0]
return (base_type, ) * n
def extract_tuple_eltypes(tuple_type, n):
"""
Extract the element types from the (static) tuple type and return them
in a tuple.
"""
if typematch(tuple_type, StaticTuple):
return extract_statictuple_eltypes(tuple_type)
else:
assert typematch(tuple_type, GenericTuple), tuple_type
base_type = tuple_type.parameters[0]
return (base_type,) * n
def extract_statictuple_eltypes(tuple_type):
if typematch(tuple_type, EmptyTuple):
return ()
hd, tl = tuple_type.parameters
return (hd, ) + extract_statictuple_eltypes(tl)
def extract_statictuple_eltypes(tuple_type):
if typematch(tuple_type, EmptyTuple):
return ()
hd, tl = tuple_type.parameters
return (hd,) + extract_statictuple_eltypes(tl)
