Dhruv Manilawala 376e3ff395 [ty] Limit argument expansion size for overload call evaluation (#20041) ... ## Summary This PR limits the argument type expansion size for an overload call evaluation to 512. The limit chosen is arbitrary but I've taken the 256 limit from Pyright into account and bumped it x2 to start with. Initially, I actually started out by trying to refactor the entire argument type expansion to be lazy. Currently, expanding a single argument at any position eagerly creates the combination (argument lists) and returns that (`Vec<CallArguments>`) but I thought we could make it lazier by converting the return type of `expand` from `Iterator<Item = Vec<CallArguments>>` to `Iterator<Item = Iterator<Item = CallArguments>>` but that's proving to be difficult to implement mainly because we **need** to maintain the previous expansion to generate the next expansion which is the main reason to use `std::iter::successors` in the first place. Another approach would be to eagerly expand all the argument types and then use the `combinations` from `itertools` to generate the combinations but we would need to find the "boundary" between arguments lists produced from expanding argument at position 1 and position 2 because that's important for the algorithm. Closes: https://github.com/astral-sh/ty/issues/868 ## Test Plan Add test case to demonstrate the limit along with the diagnostic snapshot stating that the limit has been reached.		2025-08-25 09:43:04 +00:00
..
annotations	[ty] Track when type variables are inferable or not (#19786)	2025-08-16 18:25:03 -04:00
assignment	[ty] Return Option<TupleType> from infer_tuple_type_expression (#19735)	2025-08-04 13:48:19 +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	Update class literal display to use <class 'Foo'> style (#17889)	2025-05-06 20:11:25 -04:00
call	[ty] Limit argument expansion size for overload call evaluation (#20041)	2025-08-25 09:43:04 +00:00
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] correctly ignore field specifiers when not specified (#20002)	2025-08-20 11:33:23 -07:00
declaration	[ty] Format conflicting types as an enumeration (#18956)	2025-06-26 14:29:33 +02:00
diagnostics	[ty] Improve diagnostics for bad calls to functions (#20022)	2025-08-21 22:00:44 +01:00
directives	[ty] Exhaustiveness checking & reachability for match statements (#19508)	2025-07-23 22:45:45 +02:00
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] Short circuit ReachabilityConstraints::analyze_single for dynamic types (#19867)	2025-08-11 21:58:34 +02:00
generics	[ty] Perform assignability etc checks using new Constraints trait (#19838)	2025-08-21 09:30:09 -04:00
ide_support	[ty] Fix attribute access on TypedDicts (#19758)	2025-08-05 13:59:10 +02:00
import	[ty] Add link for namespaces being partial (#20015)	2025-08-20 21:28:57 -07:00
literal	[ty] Understand classes that inherit from subscripted Protocol[] as generic (#17832)	2025-05-09 17:39:15 +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] linear variance inference for PEP-695 type parameters (#18713)	2025-08-19 17:54:09 -07:00
regression
scopes	[ty] fix deferred name loading in PEP695 generic classes/functions (#19888)	2025-08-13 15:51:59 -07:00
shadowing
snapshots	[ty] Limit argument expansion size for overload call evaluation (#20041)	2025-08-25 09:43:04 +00:00
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] Improve sys.version_info special casing (#19894)	2025-08-13 14:39:13 +01:00
suppressions	[ty] Consistent use of American english (in rules) (#19488)	2025-07-22 16:10:38 +02:00
type_compendium	[ty] Remove Type::Tuple (#19669)	2025-08-11 22:03:32 +01:00
type_of	[ty] Improve the Display for generic type[] types (#19667)	2025-07-31 19:45:01 +01:00
type_properties	[ty] Add Top[] and Bottom[] special forms, replacing top_materialization_of() function (#20054)	2025-08-23 11:20:56 -07:00
type_qualifiers	[ty] Keep track of type qualifiers in stub declarations without right-hand side (#19756)	2025-08-05 12:07:05 +02:00
unary	Update class literal display to use <class 'Foo'> style (#17889)	2025-05-06 20:11:25 -04:00
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	[ty] Infer type[tuple[int, str]] as the meta-type of tuple[int, str] (#19741)	2025-08-04 13:10:47 +00:00
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] Support __setitem__ and improve __getitem__ related diagnostics (#19578)	2025-08-01 09:23:27 +02:00
deprecated.md	[ty] Consistent use of American english (in rules) (#19488)	2025-07-22 16:10:38 +02:00
descriptor_protocol.md	[ty] Fix descriptor lookups for most types that overlap with None (#19120)	2025-07-05 19:34:23 +01:00
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] Add precise iteration and unpacking inference for string literals and bytes literals (#20023)	2025-08-22 19:33:08 +01:00
final.md
instance_layout_conflict.md	[ty] Remove special casing for tuple addition (#19636)	2025-07-30 16:25:42 +00:00
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	Update class literal display to use <class 'Foo'> style (#17889)	2025-05-06 20:11:25 -04:00
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] Detect NamedTuple classes where fields without default values follow fields with default values (#19945)	2025-08-19 08:56:08 +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] fix unpacking a type alias with detailed tuple spec (#19981)	2025-08-18 17:54:05 -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] Strict validation of protocol members (#17750)	2025-08-19 22:45:41 +00:00
public_types.md	[ty] improve lazy scope place lookup (#19321)	2025-07-25 07:11:11 +00:00
statically_known_branches.md	[ty] Infer nonlocal types as unions of all reachable bindings (#18750)	2025-06-26 12:24:40 +02:00
sys_platform.md
sys_version_info.md
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] Validate writes to TypedDict keys (#19782)	2025-08-06 15:19:13 -07:00
union_types.md	[ty] Expansion of enums into unions of literals (#19382)	2025-07-21 19:37:55 +02:00
unpacking.md	[ty] Add precise iteration and unpacking inference for string literals and bytes literals (#20023)	2025-08-22 19:33:08 +01:00
unreachable.md	[ty] improve lazy scope place lookup (#19321)	2025-07-25 07:11:11 +00:00