Skip to content

Improve error messages for super checks and add more tests #16393

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
sobolevn merged 4 commits into from
Nov 3, 2023
Merged

Improve error messages for super checks and add more tests #16393

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
616fea2
Improve error messages for `super` checks and add more tests
sobolevn Nov 2, 2023
ef4b51a
Fix test
sobolevn Nov 2, 2023
0820f8f
Address review
sobolevn Nov 3, 2023
8219eeb
Address review
sobolevn Nov 3, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions mypy/message_registry.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -206,10 +206,10 @@ def with_additional_msg(self, info: str) -> ErrorMessage:
)
TARGET_CLASS_HAS_NO_BASE_CLASS: Final = ErrorMessage("Target class has no base class")
SUPER_OUTSIDE_OF_METHOD_NOT_SUPPORTED: Final = ErrorMessage(
"super() outside of a method is not supported"
'"super()" outside of a method is not supported'
)
SUPER_ENCLOSING_POSITIONAL_ARGS_REQUIRED: Final = ErrorMessage(
"super() requires one or more positional arguments in enclosing function"
'"super()" requires one or two positional arguments in enclosing function'
)

# Self-type
Expand Down
21 changes: 17 additions & 4 deletions test-data/unit/check-super.test
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -280,8 +280,12 @@ class B(A):


[case testSuperOutsideMethodNoCrash]
class C:
a = super().whatever # E: super() outside of a method is not supported
class A:
x = 1
class B(A): pass
class C(B):
b = super(B, B).x
a = super().whatever # E: "super()" outside of a method is not supported

[case testSuperWithObjectClassAsFirstArgument]
class A:
Expand Down Expand Up @@ -366,13 +370,22 @@ class C(B):
[case testSuperInMethodWithNoArguments]
class A:
def f(self) -> None: pass
@staticmethod
def st() -> int:
return 1

class B(A):
def g() -> None: # E: Method must have at least one argument. Did you forget the "self" argument?
super().f() # E: super() requires one or more positional arguments in enclosing function
super().f() # E: "super()" requires one or two positional arguments in enclosing function
def h(self) -> None:
def a() -> None:
super().f() # E: super() requires one or more positional arguments in enclosing function
super().f() # E: "super()" requires one or two positional arguments in enclosing function
@staticmethod
def st() -> int:
reveal_type(super(B, B).st()) # N: Revealed type is "builtins.int"
super().st() # E: "super()" requires one or two positional arguments in enclosing function
return 2
[builtins fixtures/staticmethod.pyi]

[case testSuperWithUnsupportedTypeObject]
from typing import Type
Expand Down