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based reachability #532

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based reachability #532

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7 changes: 7 additions & 0 deletions test-data/unit/check-based-reachability.test
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
[case testReachability]
from typing_extensions import Never
def f() -> Never: raise Exception
print(f()) # E: Statement is unreachable [unreachable]
[f(), 1] # E: Statement is unreachable [unreachable]
def f2() -> int:
return f() # E: Statement is unreachable [unreachable]