## Summary Extends https://github.com/astral-sh/ruff/pull/20360 to dictionary literals. This also improves our `TypeDict` support by passing through nested type context.
1018 B
1018 B
Dictionaries
Empty dictionary
reveal_type({}) # revealed: dict[Unknown, Unknown]
Basic dict
reveal_type({1: 1, 2: 1}) # revealed: dict[Unknown | int, Unknown | int]
Dict of tuples
reveal_type({1: (1, 2), 2: (3, 4)}) # revealed: dict[Unknown | int, Unknown | tuple[int, int]]
Unpacked dict
a = {"a": 1, "b": 2}
b = {"c": 3, "d": 4}
d = {**a, **b}
reveal_type(d) # revealed: dict[Unknown | str, Unknown | int]
Dict of functions
def a(_: int) -> int:
return 0
def b(_: int) -> int:
return 1
x = {1: a, 2: b}
reveal_type(x) # revealed: dict[Unknown | int, Unknown | ((_: int) -> int)]
Mixed dict
# revealed: dict[Unknown | str, Unknown | int | tuple[int, int] | tuple[int, int, int]]
reveal_type({"a": 1, "b": (1, 2), "c": (1, 2, 3)})
Dict comprehensions
# revealed: dict[@Todo(dict comprehension key type), @Todo(dict comprehension value type)]
reveal_type({x: y for x, y in enumerate(range(42))})