autocomplete for discriminated unions

[zojize]

Use Cases

from typing import TypedDict, Literal, TypeAlias

class Foo(TypedDict):
    kind: Literal["foo"]
    foo_value: int

class Bar(TypedDict):
    kind: Literal["bar"]
    bar_value: str

type FooBar = Foo | Bar

case 1

item: FooBar = {
    "kind": "|",
}

expected completion: 'foo' | 'bar'

case 2

item: FooBar = {
    "kind": "foo",
    "|"
}

expected completion: 'foo_value'

[yangdanny97]

Thanks for requesting, this feature idea seems useful, though implementing it in our current way of doing autocomplete could be tricky.

[asukaminato0721]

#claim

[github-actions]

@asukaminato0721 you've claimed this issue — it's now assigned to you. Thanks for picking it up! 🎉