def merge(*maps):
"""
Returns a dict that consists of the rest of the dict conj-ed onto
the first. If a key occurs in more than one dict, the mapping from
the latter (left-to-right) will be the mapping in the result.
"""
return reduce(partial(pairwise_merge, lambda x, y: y), maps, {})
def merge_with(f, *maps):
"""
Returns a dict that consists of the rest of the maps conj-ed onto
the first. If a key occurs in more than one dict, the mapping(s)
from the latter (left-to-right) will be combined with the mapping in
the result by calling (f val-in-result val-in-latter).
"""
return reduce(partial(pairwise_merge, f), maps, {})
def __init__(self, f, *args):
self.__computation = partial(f, *args)
self.realised = False
def test_map_vals():
assert map_vals({}, partial(plus, 1)) == {}
assert map_vals({"a": 1}, partial(plus, 1)) == {"a": 2}
