8000 Make it an error to use a class-attribute type var outside a type by sixolet · Pull Request #3105 · python/mypy · GitHub
[go: up one dir, main page]
Skip to content

Make it an error to use a class-attribute type var outside a type #3105

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
merged 7 commits into from
Apr 3, 2017
Merged

Make it an error to use a class-attribute type var outside a type #3105

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
7 commits
Select commit Hold shift + click to select a range
d54708d
Make it an error to use a class-attribute type var outside a type
sixolet Apr 1, 2017
fe6eee1
Fix the error message to handle more cases
sixolet Apr 1, 2017
7b8e409
oops accidentally changed a file
sixolet Apr 1, 2017
8bfd1a7
Typo fix
sixolet Apr 1, 2017
7d658c6
more checking things in tests
sixolet Apr 1, 2017
54ae7aa
Change error message
sixolet Apr 1, 2017
0aa5a70
Change error message
sixolet Apr 1, 2017
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
Prev Previous commit
Next Next commit
Change error message
  • Loading branch information
@sixolet
sixolet committed Apr 1, 2017
commit 54ae7aab0538deb5dbf54ce3d8486afe124e2bf8
4 changes: 2 additions & 2 deletions mypy/checkmember.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -406,8 +406,8 @@ def analyze_class_attribute_access(itype: Instance,
return AnyType()

if isinstance(node.node, TypeVarExpr):
msg.fail('Type variable "{}" is invalid except as a parameter to another type'.format(
node.node.fullname() or node.node.name()), context)
msg.fail('Type variable "{}.{}" is invalid in a runtime context'.format(
itype.type.name(), name), context)
return AnyType()

if isinstance(node.node, TypeInfo):
Expand Down
4 changes: 2 additions & 2 deletions test-data/unit/check-typevar-values.test
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -505,8 +505,8 @@ class C:
reveal_type(l) # E: Revealed type is 'builtins.list[T`-1]'
y: C.T = x
l.append(x)
C.T # E: Type variable "T" is invalid except as a parameter to another type
A = C.T # E: Type variable "T" is invalid except as a parameter to another type
C.T # E: Type variable "C.T" is invalid in a runtime context
A = C.T # E: Type variable "C.T" is invalid in a runtime context
return l[0]

[builtins fixtures/list.pyi]
Expand Down
0