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Fix crash during deserialization of callable types #3660

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Merged
merged 1 commit into from
Jul 5, 2017
Merged

Fix crash during deserialization of callable types #3660

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3 changes: 3 additions & 0 deletions mypy/fixup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -191,6 +191,9 @@ def visit_callable_type(self, ct: CallableType) -> None:
for val in v.values:
val.accept(self)
v.upper_bound.accept(self)
for arg in ct.bound_args:
if arg:
arg.accept(self)

def visit_overloaded(self, t: Overloaded) -> None:
for ct in t.items():
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20 changes: 20 additions & 0 deletions test-data/unit/check-serialize.test
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Expand Up @@ -124,6 +124,26 @@ def f(x: int,
[builtins fixtures/dict.pyi]
[out2]

[case testSerializeCallableWithBoundTypeArguments]
import a
[file a.py]
import b
[file a.py.2]
import b
x = b.f
[file b.py]
from typing import TypeVar, Generic

T = TypeVar('T')

class C(Generic[T]):
def f(self, x: T) -> None: pass

c: C[int]
f = c.f
[out]
[out2]

[case testSerializePositionalOnlyArgument]
import a
[file a.py]
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