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authorMichael Howell <michael@notriddle.com>2024-09-24 18:18:01 -0700
committerMichael Howell <michael@notriddle.com>2024-10-30 12:27:48 -0700
commit12dc24f46007f82b93ed85614347a42d47580afa (patch)
tree9982abfa57e7b6e6c6548c0e98e9eace563e8363 /tests/rustdoc-js/generics-impl.js
parent20a4b4fea1e5f3005973ae1391b039722d207119 (diff)
downloadrust-12dc24f46007f82b93ed85614347a42d47580afa.tar.gz
rust-12dc24f46007f82b93ed85614347a42d47580afa.zip
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>
Diffstat (limited to 'tests/rustdoc-js/generics-impl.js')
-rw-r--r--tests/rustdoc-js/generics-impl.js8
1 files changed, 6 insertions, 2 deletions
diff --git a/tests/rustdoc-js/generics-impl.js b/tests/rustdoc-js/generics-impl.js
index 5e33e224876..c104730dcbd 100644
--- a/tests/rustdoc-js/generics-impl.js
+++ b/tests/rustdoc-js/generics-impl.js
@@ -14,7 +14,7 @@ const EXPECTED = [
         ],
     },
     {
-        'query': 'Aaaaaaa -> usize',
+        'query': 'Aaaaaaa -> Result<usize>',
         'others': [
             { 'path': 'generics_impl::Aaaaaaa', 'name': 'read' },
         ],
@@ -23,6 +23,11 @@ const EXPECTED = [
         'query': 'Read -> u64',
         'others': [
             { 'path': 'generics_impl::Ddddddd', 'name': 'eeeeeee' },
+        ],
+    },
+    {
+        'query': 'Ddddddd<Read> -> u64',
+        'others': [
             { 'path': 'generics_impl::Ddddddd', 'name': 'ggggggg' },
         ],
     },
@@ -30,7 +35,6 @@ const EXPECTED = [
         'query': 'trait:Read -> u64',
         'others': [
             { 'path': 'generics_impl::Ddddddd', 'name': 'eeeeeee' },
-            { 'path': 'generics_impl::Ddddddd', 'name': 'ggggggg' },
         ],
     },
     {