rust/tests/rustdoc-js/nested-unboxed.js
Michael Howell 12dc24f460 rustdoc-search: simplify rules for generics and type params
This commit is a response to feedback on the displayed type
signatures results, by making generics act stricter.

Generics are tightened by making order significant. This means
`Vec<Allocator>` now matches only with a true vector of allocators,
instead of matching the second type param. It also makes unboxing
within generics stricter, so `Result<A, B>` only matches if `B`
is in the error type and `A` is in the success type. The top level
of the function search is unaffected.

Find the discussion on:

* <https://rust-lang.zulipchat.com/#narrow/stream/393423-t-rustdoc.2Fmeetings/topic/meeting.202024-07-08/near/449965149>
* <https://github.com/rust-lang/rust/pull/124544#issuecomment-2204272265>
* <https://rust-lang.zulipchat.com/#narrow/channel/266220-t-rustdoc/topic/deciding.20on.20semantics.20of.20generics.20in.20rustdoc.20search/near/476841363>
2024-10-30 12:27:48 -07:00

66 lines
1.5 KiB
JavaScript

// exact-check
const EXPECTED = [
{
'query': '-> Result<Object, bool>',
'others': [
{ 'path': 'nested_unboxed', 'name': 'something' },
],
},
{
'query': '-> Result<Object<i32, u32>, bool>',
'others': [
{ 'path': 'nested_unboxed', 'name': 'something' },
],
},
{
'query': '-> Object, bool',
'others': [
{ 'path': 'nested_unboxed', 'name': 'something' },
],
},
{
'query': '-> Object<i32, u32>, bool',
'others': [
{ 'path': 'nested_unboxed', 'name': 'something' },
],
},
{
'query': '-> i32, u32, bool',
'others': [
{ 'path': 'nested_unboxed', 'name': 'something' },
],
},
{
'query': '-> Result<i32, u32, bool>',
// can't put nested generics out of order
'others': [],
},
{
'query': '-> Result<Object<i32>, bool>',
'others': [
{ 'path': 'nested_unboxed', 'name': 'something' },
],
},
{
'query': '-> Result<Object<u32>, bool>',
'others': [],
},
{
'query': '-> Result<Object<i32>, u32, bool>',
'others': [],
},
{
'query': '-> Result<i32, Object<u32>, bool>',
'others': [],
},
{
'query': '-> Result<i32, u32, Object<bool>>',
'others': [],
},
{
'query': '-> Result<Object<i32>, Object<u32>, bool>',
'others': [],
},
];