[ty] type-of-self in methods
#20723
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[ty] type-of-self in methods
#20723
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…abilityConstraints
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Diagnostic diff on typing conformance testsChanges were detected when running ty on typing conformance tests--- old-output.txt 2025-10-14 13:32:11.034876357 +0000
+++ new-output.txt 2025-10-14 13:32:14.404884190 +0000
@@ -1,5 +1,5 @@
fatal[panic] Panicked at /home/runner/.cargo/git/checkouts/salsa-e6f3bb7c2a062968/29ab321/src/function/execute.rs:217:25 when checking `/home/runner/work/ruff/ruff/typing/conformance/tests/aliases_type_statement.py`: `PEP695TypeAliasType < 'db >::value_type_(Id(d017)): execute: too many cycle iterations`
-fatal[panic] Panicked at /home/runner/.cargo/git/checkouts/salsa-e6f3bb7c2a062968/29ab321/src/function/execute.rs:217:25 when checking `/home/runner/work/ruff/ruff/typing/conformance/tests/aliases_typealiastype.py`: `infer_definition_types(Id(1643f)): execute: too many cycle iterations`
+fatal[panic] Panicked at /home/runner/.cargo/git/checkouts/salsa-e6f3bb7c2a062968/29ab321/src/function/execute.rs:217:25 when checking `/home/runner/work/ruff/ruff/typing/conformance/tests/aliases_typealiastype.py`: `infer_definition_types(Id(1683f)): execute: too many cycle iterations`
_directives_deprecated_library.py:15:31: error[invalid-return-type] Function always implicitly returns `None`, which is not assignable to return type `int`
_directives_deprecated_library.py:30:26: error[invalid-return-type] Function always implicitly returns `None`, which is not assignable to return type `str`
_directives_deprecated_library.py:36:41: error[invalid-return-type] Function always implicitly returns `None`, which is not assignable to return type `Self@__add__`
@@ -345,6 +345,7 @@
enums_member_names.py:30:5: error[type-assertion-failure] Argument does not have asserted type `Literal["RED", "BLUE", "GREEN"]`
enums_member_values.py:30:5: error[type-assertion-failure] Argument does not have asserted type `Literal[1, 2, 3]`
enums_member_values.py:54:1: error[type-assertion-failure] Argument does not have asserted type `Literal[1]`
+enums_member_values.py:85:9: error[invalid-assignment] Object of type `int` is not assignable to attribute `_value_` of type `str`
enums_member_values.py:96:1: error[type-assertion-failure] Argument does not have asserted type `int`
enums_members.py:128:21: info[revealed-type] Revealed type: `Unknown | Literal[2]`
enums_members.py:129:9: error[type-assertion-failure] Argument does not have asserted type `Unknown`
@@ -438,7 +439,6 @@
generics_self_advanced.py:18:1: error[type-assertion-failure] Argument does not have asserted type `ParentA`
generics_self_advanced.py:19:1: error[type-assertion-failure] Argument does not have asserted type `ChildA`
generics_self_advanced.py:28:25: error[invalid-return-type] Function always implicitly returns `None`, which is not assignable to return type `Self@method1`
-generics_self_advanced.py:35:9: error[type-assertion-failure] Argument does not have asserted type `Self@method2`
generics_self_advanced.py:36:9: error[type-assertion-failure] Argument does not have asserted type `list[Self@method2]`
generics_self_advanced.py:37:9: error[type-assertion-failure] Argument does not have asserted type `Self@method2`
generics_self_advanced.py:38:9: error[type-assertion-failure] Argument does not have asserted type `Self@method2`
@@ -448,7 +448,6 @@
generics_self_attributes.py:26:33: error[invalid-argument-type] Argument is incorrect: Expected `typing.Self | None`, found `LinkedList[int]`
generics_self_attributes.py:29:5: error[invalid-assignment] Object of type `OrdinalLinkedList` is not assignable to attribute `next` of type `typing.Self | None`
generics_self_attributes.py:32:5: error[invalid-assignment] Object of type `LinkedList[int]` is not assignable to attribute `next` of type `typing.Self | None`
-generics_self_basic.py:14:9: error[type-assertion-failure] Argument does not have asserted type `Self@set_scale`
generics_self_basic.py:20:16: error[invalid-return-type] Return type does not match returned value: expected `Self@method2`, found `Shape`
generics_self_basic.py:33:16: error[invalid-return-type] Return type does not match returned value: expected `Self@cls_method2`, found `Shape`
generics_self_basic.py:54:1: error[type-assertion-failure] Argument does not have asserted type `Shape`
@@ -492,6 +491,7 @@
generics_syntax_infer_variance.py:46:1: error[invalid-assignment] Object of type `ShouldBeCovariant3[int | float]` is not assignable to `ShouldBeCovariant3[int]`
generics_syntax_infer_variance.py:74:1: error[invalid-assignment] Object of type `ShouldBeCovariant5[int]` is not assignable to `ShouldBeCovariant5[int | float]`
generics_syntax_infer_variance.py:75:1: error[invalid-assignment] Object of type `ShouldBeCovariant5[int | float]` is not assignable to `ShouldBeCovariant5[int]`
+generics_syntax_infer_variance.py:82:9: error[invalid-assignment] Cannot assign to final attribute `x` on type `Self@__init__`
generics_syntax_infer_variance.py:85:1: error[invalid-assignment] Object of type `ShouldBeCovariant6[int]` is not assignable to `ShouldBeCovariant6[int | float]`
generics_syntax_infer_variance.py:86:1: error[invalid-assignment] Object of type `ShouldBeCovariant6[int | float]` is not assignable to `ShouldBeCovariant6[int]`
generics_syntax_infer_variance.py:102:1: error[invalid-assignment] Object of type `ShouldBeInvariant1[int]` is not assignable to `ShouldBeInvariant1[int | float]`
@@ -503,7 +503,6 @@
generics_syntax_infer_variance.py:127:1: error[invalid-assignment] Object of type `ShouldBeInvariant3[str, int]` is not assignable to `ShouldBeInvariant3[str, int | float]`
generics_syntax_infer_variance.py:128:1: error[invalid-assignment] Object of type `ShouldBeInvariant3[str, int | float]` is not assignable to `ShouldBeInvariant3[str, int]`
generics_syntax_infer_variance.py:136:1: error[invalid-assignment] Object of type `ShouldBeInvariant4[int]` is not assignable to `ShouldBeInvariant4[int | float]`
-generics_syntax_infer_variance.py:144:1: error[invalid-assignment] Object of type `ShouldBeInvariant5[int]` is not assignable to `ShouldBeInvariant5[int | float]`
generics_syntax_infer_variance.py:155:1: error[invalid-assignment] Object of type `ShouldBeContravariant1[int]` is not assignable to `ShouldBeContravariant1[int | float]`
generics_syntax_infer_variance.py:156:1: error[invalid-assignment] Object of type `ShouldBeContravariant1[int | float]` is not assignable to `ShouldBeContravariant1[int]`
generics_syntax_scoping.py:35:7: error[unresolved-reference] Name `T` used when not defined
@@ -614,7 +613,6 @@
generics_variance_inference.py:121:1: error[invalid-assignment] Object of type `ShouldBeInvariant3[str, int]` is not assignable to `ShouldBeInvariant3[str, int | float]`
generics_variance_inference.py:122:1: error[invalid-assignment] Object of type `ShouldBeInvariant3[str, int | float]` is not assignable to `ShouldBeInvariant3[str, int]`
generics_variance_inference.py:130:1: error[invalid-assignment] Object of type `ShouldBeInvariant4[int]` is not assignable to `ShouldBeInvariant4[int | float]`
-generics_variance_inference.py:138:1: error[invalid-assignment] Object of type `ShouldBeInvariant5[int]` is not assignable to `ShouldBeInvariant5[int | float]`
generics_variance_inference.py:149:1: error[invalid-assignment] Object of type `ShouldBeContravariant1[int]` is not assignable to `ShouldBeContravariant1[int | float]`
generics_variance_inference.py:169:1: error[invalid-assignment] Object of type `ShouldBeInvariant6[int | float]` is not assignable to `ShouldBeInvariant6[int]`
generics_variance_inference.py:170:1: error[invalid-assignment] Object of type `ShouldBeInvariant6[int]` is not assignable to `ShouldBeInvariant6[int | float]`
@@ -757,6 +755,8 @@
protocols_definition.py:287:1: error[invalid-assignment] Object of type `Concrete5_Bad3` is not assignable to `Template5`
protocols_definition.py:288:1: error[invalid-assignment] Object of type `Concrete5_Bad4` is not assignable to `Template5`
protocols_definition.py:289:1: error[invalid-assignment] Object of type `Concrete5_Bad5` is not assignable to `Template5`
+protocols_explicit.py:56:9: error[invalid-assignment] Object of type `tuple[int, int, str]` is not assignable to attribute `rgb` of type `tuple[int, int, int]`
+protocols_explicit.py:85:9: error[invalid-attribute-access] Cannot assign to ClassVar `cm1` from an instance of type `Self@__init__`
protocols_generic.py:40:1: error[invalid-assignment] Object of type `Concrete1` is not assignable to `Proto1[int, str]`
protocols_generic.py:56:5: error[invalid-assignment] Object of type `Box[int | float]` is not assignable to `Box[int]`
protocols_generic.py:66:5: error[invalid-assignment] Object of type `Sender[int]` is not assignable to `Sender[int | float]`
@@ -801,6 +801,11 @@
qualifiers_annotated.py:64:8: error[invalid-type-form] Special form `typing.Annotated` expected at least 2 arguments (one type and at least one metadata element)
qualifiers_annotated.py:91:1: error[call-non-callable] Object of type `typing.Annotated` is not callable
qualifiers_final_annotation.py:18:7: error[invalid-type-form] Type qualifier `typing.Final` expected exactly 1 argument, got 2
+qualifiers_final_annotation.py:52:9: error[invalid-assignment] Cannot assign to final attribute `ID4` on type `Self@__init__`
+qualifiers_final_annotation.py:54:9: error[invalid-assignment] Cannot assign to final attribute `ID5` on type `Self@__init__`
+qualifiers_final_annotation.py:57:13: error[invalid-assignment] Cannot assign to final attribute `ID6` on type `Self@__init__`
+qualifiers_final_annotation.py:59:13: error[invalid-assignment] Cannot assign to final attribute `ID6` on type `Self@__init__`
+qualifiers_final_annotation.py:65:9: error[invalid-assignment] Cannot assign to final attribute `ID7` on type `Self@method1`
qualifiers_final_annotation.py:71:1: error[invalid-assignment] Reassignment of `Final` symbol `RATE` is not allowed: Symbol later reassigned here
qualifiers_final_annotation.py:81:1: error[invalid-assignment] Cannot assign to final attribute `DEFAULT_ID` on type `<class 'ClassB'>`
qualifiers_final_annotation.py:118:9: error[invalid-type-form] Type qualifier `typing.Final` is not allowed in type expressions (only in annotation expressions)
@@ -898,5 +903,5 @@
typeddicts_usage.py:28:17: error[missing-typed-dict-key] Missing required key 'name' in TypedDict `Movie` constructor
typeddicts_usage.py:28:18: error[invalid-key] Invalid key access on TypedDict `Movie`: Unknown key "title"
typeddicts_usage.py:40:24: error[invalid-type-form] The special form `typing.TypedDict` is not allowed in type expressions. Did you mean to use a concrete TypedDict or `collections.abc.Mapping[str, object]` instead?
-Found 900 diagnostics
+Found 905 diagnostics
WARN A fatal error occurred while checking some files. Not all project files were analyzed. See the diagnostics list above for details. |
Contributor
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Contributor
|
| Lint rule | Added | Removed | Changed |
|---|---|---|---|
unresolved-attribute |
5,914 | 10 | 0 |
invalid-argument-type |
1,321 | 114 | 121 |
possibly-missing-attribute |
1,138 | 392 | 24 |
unsupported-operator |
714 | 545 | 6 |
unused-ignore-comment |
115 | 901 | 0 |
invalid-return-type |
340 | 81 | 12 |
invalid-assignment |
316 | 64 | 18 |
non-subscriptable |
138 | 87 | 0 |
call-non-callable |
135 | 13 | 0 |
no-matching-overload |
70 | 6 | 0 |
not-iterable |
61 | 14 | 0 |
missing-argument |
72 | 0 | 0 |
possibly-missing-implicit-call |
45 | 9 | 10 |
too-many-positional-arguments |
47 | 0 | 0 |
deprecated |
28 | 0 | 0 |
unknown-argument |
24 | 0 | 0 |
possibly-unresolved-reference |
0 | 19 | 0 |
parameter-already-assigned |
14 | 4 | 0 |
redundant-cast |
14 | 0 | 0 |
division-by-zero |
1 | 4 | 0 |
invalid-await |
3 | 0 | 1 |
invalid-key |
2 | 1 | 0 |
type-assertion-failure |
0 | 3 | 0 |
invalid-attribute-access |
2 | 0 | 0 |
invalid-context-manager |
2 | 0 | 0 |
missing-typed-dict-key |
2 | 0 | 0 |
unsupported-base |
2 | 0 | 0 |
index-out-of-bounds |
1 | 0 | 0 |
invalid-parameter-default |
1 | 0 | 0 |
invalid-super-argument |
1 | 0 | 0 |
invalid-type-form |
1 | 0 | 0 |
| Total | 10,524 | 2,267 | 192 |
CodSpeed Performance ReportMerging #20723 will degrade performances by 8.76%Comparing Summary
Benchmarks breakdown
Footnotes
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Reopening to get a fresh ecosystem report now #20814 has landed |
AlexWaygood
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Nice, we're down from 472 new |
This was referenced Oct 13, 2025
AlexWaygood
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...And now only 1 (which is a true positive), following #20843 |
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Summary
Test Plan