⬆️ Update dependency ty to v0.0.49

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ty (changelog)	==0.0.44 → ==0.0.49

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Release Notes

astral-sh/ty (ty)

v0.0.49

Compare Source

Released on 2026-06-11.

Bug fixes

• Fix site-package error when multiple versions of Python are installed in system path (#​25769)

Diagnostics

• Point at attribute's binding site in `invalid-await diagnostic (#​24628)
• Report redefined legacy TypeVars (#​25854)

Performance

• Add dedicated TDDs for narrowing constraints (#​25834)
• Avoid caching same-file raw signatures (#​25761)
• Cache reachability evaluations during inference (#​25696)
• Compact retained definition maps (#​25737)
• Omit redundant definition inference owner keys (#​25837)

Core type checking

• Preserve nominal type of enum.property instances (#​25849)
• Restrict length narrowing to types that encode their length (#​25840)
• Use peer context for collection literals (#​25848)

Contributors

• @​charliermarsh
• @​anishgirianish
• @​cheparity
• @​carljm

v0.0.48

Compare Source

Released on 2026-06-10.

Performance

• Avoid redundant constraint saturation work (#​25786)

Core type checking

• Add support for TypedDict extra_items (#​25591)
• Improve closed=True TypedDict precision (#​25651)
• Require subtyping for transitive constraint pivots (#​25778)
• Sync vendored typeshed stubs (#​25828). Typeshed diff

Contributors

• @​charliermarsh
• @​MichaReiser

v0.0.47

Compare Source

Released on 2026-06-10.

Bug fixes

• Avoid panicking on encountering a recursive NamedTuple that references a recursive NewType (#​25764)
• Fix out-of-bound panic in notebooks involving suppression comments (#​25629)

Core type checking

• Preserve overloads through callable protocol decorators (#​25806)
• Sync vendored typeshed stubs (#​25779). Typeshed diff

Performance and memory-usage improvements

• Avoid caching specialization-invariant known instances (#​25816)
• Avoid resolving overload sets for ordinary functions (#​25817)
• Store common definition inference results inline (#​25814)
• Use Box<SystemPath> etc. in Files (#​25554)

Contributors

• @​dhruvmanila
• @​MichaReiser
• @​charliermarsh

v0.0.46

Compare Source

Released on 2026-06-08.

Bug fixes

• Avoid crash when hovering over Callable (#​25759)

Core type checking

• Support Callable() in match statement class patterns (#​25541)
• Improve support for enum.property (#​25681)

Contributors

• @​carljm
• @​charliermarsh
• @​thejchap

v0.0.45

Compare Source

Released on 2026-06-08.

Bug fixes

• Avoid treating dynamic class attributes as instance attributes (#​25678)
• Fix divergence in recursive inference due to ambiguous overload (#​25548)
• Preserve literal promotion for mixed bounds (#​25648)

Diagnostics

• Add missing-type-argument lint rule (#​25617)

Core type checking

• Add support for narrowing on tuple match cases (#​25493)
• Check implicit open TypedDict extra items (#​25628)
• Create fresh copies of generic callable typevars (#​24949)
• Preserve deprecation on replacement functions (#​25688)
• Preserve intersection receivers during attribute lookup (#​25626)
• Preserve transparent callable decorators (#​25030)

Performance

• Avoid AST load for callable description names (#​25728)
• Avoid caching absent class decorators and type parameters (#​25689)
• Avoid caching atomic type specializations (#​25663)
• Avoid caching constant constraint relations (#​25656)
• Avoid caching missing implicit attributes (#​25649)
• Avoid caching trivial class-header queries (#​25692)
• Avoid caching trivial member lookups (#​25661)
• Bypass member lookup for module imports (#​25723)
• Cache constraint implication checks (#​25714)
• Cache upper-bound satisfiability (#​25710)
• Compact retained function type signatures (#​25669)
• Compact retained use-def bindings (#​25682)
• Consolidate retained narrowing constraints (#​25660)
• Construct trivial constraint sets directly (#​25659)
• Resolve function descriptors directly (#​25675)
• Share code-generator classification across specializations (#​25701)
• Share parameter lists with Arc (#​25735)
• Use same-file expression inference in reachability (#​25694)

Contributors

• @​mtshiba
• @​dhruvmanila
• @​charliermarsh
• @​dcreager
• @​carljm
• @​reginaldl

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (9edaee9) to head (f053b72).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1530   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines         1233      1233           
  Branches       141       141           
=========================================
  Hits          1233      1233           

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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