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(🎁) Report unreachable when TypeGuard[Never] #16160

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(🎁) Report unreachable when TypeGuard[Never]#16160
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featuretopic-reachabilityDetecting unreachable codetopic-typeguardTypeGuard / PEP 647
@KotlinIsland

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@KotlinIsland
KotlinIsland
opened on Sep 22, 2023
def guard(a: object) -> TypeGuard[Never]: ...

a: object
assert guard(a)
print("hi")  # expected error unreachable

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    featuretopic-reachabilityDetecting unreachable codetopic-typeguardTypeGuard / PEP 647

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