Revert "[ty] Completely remove the NoReturn shortcut optimization"#23955
Merged
Revert "[ty] Completely remove the NoReturn shortcut optimization"#23955
NoReturn shortcut optimization"#23955Conversation
sharkdp
requested review from
AlexWaygood,
carljm,
dcreager and
ibraheemdev
as code owners
sharkdp
added
internal
AlexWaygood
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Mar 14, 2026
Typing conformance resultsNo changes detected ✅Current numbersThe percentage of diagnostics emitted that were expected errors held steady at 85.29%. The percentage of expected errors that received a diagnostic held steady at 78.13%. The number of fully passing files held steady at 64/132. |
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Memory usage reportSummary
Significant changesClick to expand detailed breakdownprefect
sphinx
trio
flake8
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Merging this PR will degrade performance by 4.07%
Performance Changes
Comparing 
Footnotes
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carljm
added a commit
that referenced
this pull request
Mar 16, 2026
* main: (131 commits) [ty] Fixup examples in `invalid-key` docs (#23968) [ty] Fix compiler warning about unused variable (#23967) [ty] Sync vendored typeshed stubs (#23963) Add a `.git-blame-ignore-revs` file (#23959) Revert "[ty] Completely remove the `NoReturn` shortcut optimization" (#23955) [ty] Completely remove the `NoReturn` shortcut optimization (#23378) [ty] Introduce fast path for protocol non-assignability (#23952) Bump typing conformance suite SHA (#23951) Minor followup to severity display - use preview function in server instead of checking preview disabled directly (#23950) Document editor features for markdown code formatting (#23924) [ty] Add `with_recursion_guard()` helpers to `relation.rs` (#23945) [ty] Remove `check_optional_method_pair` methods (#23947) [ty] Remove unused `CycleDetector::try_visit` method (#23944) [ty] Ensure TypedDict subscripts for unknown keys return Unknown (#23926) [ty] Fix variance of frozen dataclass-transform models (#23931) Display output severity in preview (#23845) Revert "[`ruff`] use `bitcode` instead of `bincode`" (#23935) Fix shell injection via `shell=True` in subprocess calls (#23894) [ty] Refactor `relation.rs` to store state on a struct rather than passing around 7 arguments every time we recurse (#23837) Don't return code actions for non-Python documents (#23905) ...
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Summary
This reverts commit 85a8516.