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ruff/crates/ty_python_semantic/resources/mdtest
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Shunsuke Shibayama 08a561fc05
[ty] more precise lazy scope place lookup (#19932) 
## Summary

This is a follow-up to https://github.com/astral-sh/ruff/pull/19321.

Now lazy snapshots are updated to take into account new bindings on
every symbol reassignment.

```python
def outer(x: A | None):
    if x is None:
        x = A()

    reveal_type(x)  # revealed: A

    def inner() -> None:
        # lazy snapshot: {x: A}
        reveal_type(x)  # revealed: A
    inner()

def outer() -> None:
    x = None

    x = 1

    def inner() -> None:
        # lazy snapshot: {x: Literal[1]} -> {x: Literal[1, 2]}
        reveal_type(x)  # revealed: Literal[1, 2]
    inner()

    x = 2
```

Closes astral-sh/ty#559.

## Test Plan

Some TODOs in `public_types.md` now work properly.

---------

Co-authored-by: Carl Meyer <carl@astral.sh>
2025-09-08 21:08:35 +00:00
..
annotations [ty] Fall back to object for attribute access on synthesized protocols (#20286) 2025-09-08 13:04:37 +01:00
assignment [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
binary [ty] Remove special casing for string-literal-in-tuple __contains__ (#19642) 2025-07-31 11:28:03 +01:00
boolean Revert "[ty] Better control flow for boolean expressions that are inside if (#18010)" (#18150) 2025-05-17 08:27:32 -04:00
boundness_declaredness
call [ty] Implement the legacy PEP-484 convention for indicating positional-only parameters (#20248) 2025-09-05 17:56:06 +01:00
class [ty] Remove use of ClassBase::try_from_type from super() machinery (#19902) 2025-08-14 22:14:31 +01:00
comparison [ty] Enum literal types (#19328) 2025-07-15 21:31:53 +02:00
comprehensions [ty] Async for loops and async iterables (#19634) 2025-07-30 17:40:24 +02:00
conditional [ty] Support as-patterns in reachability analysis (#19728) 2025-08-04 20:13:50 +02:00
dataclasses [ty] initial support for slots=True in dataclasses (#20278) 2025-09-07 18:25:35 +01:00
declaration [ty] Format conflicting types as an enumeration (#18956) 2025-06-26 14:29:33 +02:00
diagnostics Revert "[ty] Use invalid-assignment error code for invalid assignments to ClassVars" (#20158) 2025-08-29 19:48:45 +01:00
directives [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
doc ty_python_semantic: add union type context to function call type errors 2025-05-09 13:40:51 -04:00
exception [ty] Use separate Rust types for bound and unbound type variables (#19796) 2025-08-11 15:29:58 -04:00
expression [ty] Support async/await, async with and yield from (#19595) 2025-07-30 11:51:21 +02:00
function [ty] Improve disambiguation of types via fully qualified names (#20141) 2025-08-29 08:44:18 +00:00
generics [ty] Add support for generic PEP695 type aliases (#20219) 2025-09-08 13:26:21 -07:00
ide_support [ty] Fix attribute access on TypedDicts (#19758) 2025-08-05 13:59:10 +02:00
import [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
literal [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
loops [ty] Add precise iteration and unpacking inference for string literals and bytes literals (#20023) 2025-08-22 19:33:08 +01:00
narrow [ty] more precise lazy scope place lookup (#19932) 2025-09-08 21:08:35 +00:00
regression
scopes [ty] fix deferred name loading in PEP695 generic classes/functions (#19888) 2025-08-13 15:51:59 -07:00
shadowing
snapshots [ty] Add backreferences to TypedDict items in diagnostics (#20262) 2025-09-05 12:38:37 +02:00
stubs [ty] Do not carry the generic context of Protocol or Generic in the ClassBase enum (#17989) 2025-05-22 21:37:03 -04:00
subscript [ty] __class_getitem__ is a classmethod (#20192) 2025-09-01 11:22:19 +02:00
suppressions [ty] Consistent use of American english (in rules) (#19488) 2025-07-22 16:10:38 +02:00
type_compendium [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
type_of [ty] Improve the Display for generic type[] types (#19667) 2025-07-31 19:45:01 +01:00
type_properties [ty] initial support for slots=True in dataclasses (#20278) 2025-09-07 18:25:35 +01:00
type_qualifiers Revert "[ty] Use invalid-assignment error code for invalid assignments to ClassVars" (#20158) 2025-08-29 19:48:45 +01:00
unary
with [ty] Diagnostics for async context managers (#19704) 2025-08-05 07:41:37 -07:00
.mdformat.toml
async.md [ty] Support async/await, async with and yield from (#19595) 2025-07-30 11:51:21 +02:00
attributes.md Revert "[ty] Use invalid-assignment error code for invalid assignments to ClassVars" (#20158) 2025-08-29 19:48:45 +01:00
classes.md [ty] don't assume that deferred type inference means deferred name resolution (#20160) 2025-08-29 16:19:45 -07:00
cycle.md [ty] Add cycle handling for unpacking targets (#18078) 2025-05-13 21:27:48 +00:00
decorators.md ty_python_semantic: add union type context to function call type errors 2025-05-09 13:40:51 -04:00
del.md [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
deprecated.md [ty] Consistent use of American english (in rules) (#19488) 2025-07-22 16:10:38 +02:00
descriptor_protocol.md [ty] Better error message for attempting to assign to a read-only property (#20150) 2025-08-29 13:22:23 +00:00
enums.md [ty] Infer the correct type of Enum __eq__ and __ne__ comparisions (#19666) 2025-08-18 19:45:44 +02:00
exhaustiveness_checking.md [ty] Narrow specialized generics using isinstance() (#20256) 2025-09-04 15:28:33 -07:00
final.md
instance_layout_conflict.md [ty] initial support for slots=True in dataclasses (#20278) 2025-09-07 18:25:35 +01:00
intersection_types.md [ty] Expansion of enums into unions of literals (#19382) 2025-07-21 19:37:55 +02:00
invalid_syntax.md
known_constants.md
mdtest_config.md
mdtest_custom_typeshed.md [ty] Remove Type::Tuple (#19669) 2025-08-11 22:03:32 +01:00
metaclass.md
mro.md [ty] Track different uses of legacy typevars, including context when rendering typevars (#19604) 2025-08-01 12:20:32 -04:00
named_tuple.md [ty] Better error message for attempting to assign to a read-only property (#20150) 2025-08-29 13:22:23 +00:00
overloads.md [ty] Track different uses of legacy typevars, including context when rendering typevars (#19604) 2025-08-01 12:20:32 -04:00
pep695_type_aliases.md [ty] Add support for generic PEP695 type aliases (#20219) 2025-09-08 13:26:21 -07:00
properties.md ty_python_semantic: add union type context to function call type errors 2025-05-09 13:40:51 -04:00
protocols.md [ty] Implement the legacy PEP-484 convention for indicating positional-only parameters (#20248) 2025-09-05 17:56:06 +01:00
public_types.md [ty] more precise lazy scope place lookup (#19932) 2025-09-08 21:08:35 +00:00
statically_known_branches.md [ty] Evaluate reachability of non-definitely-bound to Ambiguous (#19579) 2025-08-28 14:34:49 +02:00
sys_platform.md
sys_version_info.md
t_strings.md [ty] Add support for PEP 750 t-strings (#20085) 2025-08-25 18:49:49 +00:00
terminal_statements.md [ty] improve lazy scope place lookup (#19321) 2025-07-25 07:11:11 +00:00
ty_extensions.md [ty] Rename type_api => ty_extensions (#19523) 2025-07-24 08:24:26 +00:00
typed_dict.md [ty] Minor: 'can not' => cannot (#20260) 2025-09-05 09:19:14 +02:00
union_types.md [ty] Expansion of enums into unions of literals (#19382) 2025-07-21 19:37:55 +02:00
unpacking.md [ty] Infer slightly more precise types for comprehensions (#20111) 2025-08-27 13:21:47 +01:00
unreachable.md [ty] improve lazy scope place lookup (#19321) 2025-07-25 07:11:11 +00:00