[another approach] Prevent crash with Unpack of a fixed tuple in PEP695 type alias #18452
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This comment has been minimized.
This comment has been minimized.
This comment has been minimized.
This comment has been minimized.
Contributor
|
Diff from mypy_primer, showing the effect of this PR on open source code: schemathesis (https://github.com/schemathesis/schemathesis)
- File "/tmp/mypy_primer/old_mypy/venv/bin/mypy", line 8, in <module>
+ File "/tmp/mypy_primer/new_mypy/venv/bin/mypy", line 8, in <module>
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/__main__.py", line 15, in console_entry
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/__main__.py", line 15, in console_entry
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/main.py", line 119, in main
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/main.py", line 119, in main
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/main.py", line 203, in run_build
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/main.py", line 203, in run_build
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 191, in build
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 191, in build
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 267, in _build
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 267, in _build
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 2947, in dispatch
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 2947, in dispatch
- File "/tmp/mypy_primer/old_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 976, in write_deps_cache
+ File "/tmp/mypy_primer/new_mypy/venv/lib/python3.12/site-packages/mypy/build.py", line 976, in write_deps_cache
|
Collaborator
Author
|
Now I tend to prefer this version as it does not change how aliases are interpreted and there's no clear winner between those alternatives in #18451. Is this approach unifying |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes #18309.
This PR offers an alternative approach following #18451. Changes here align the processing of TypeAlias and PEP695 type statement closer, introducing the same "backlinks" to typealias from the RHS. Since those constructs are very similar in semantics, this might be more reasonable than my previous suggestion.