rustdoc: correct path to type alias methods

Author: notriddle

src/librustdoc/formats/cache.rs

@@ -293,7 +293,8 @@ impl<'a, 'tcx> DocFolder for CacheBuilder<'a, 'tcx> {
  ItemType::Trait
  | ItemType::Struct
  | ItemType::Union
- | ItemType::Enum,
+ | ItemType::Enum
+ | ItemType::Typedef,
  )) => Some(&fqp[..fqp.len() - 1]),
  Some(..) => Some(&*self.cache.stack),
  None => None,

src/test/rustdoc-js-std/asrawfd.js

@@ -0,0 +1,14 @@
+// exact-match
+
+const QUERY = 'RawFd::as_raw_fd';
+
+const EXPECTED = {
+ 'others': [
+ // Reproduction test for https://github.com/rust-lang/rust/issues/78724
+ // Validate that type alias methods get the correct path.
+ { 'path': 'std::os::unix::io::AsRawFd', 'name': 'as_raw_fd' },
+ { 'path': 'std::os::wasi::io::AsRawFd', 'name': 'as_raw_fd' },
+ { 'path': 'std::os::linux::process::PidFd', 'name': 'as_raw_fd' },
+ { 'path': 'std::os::unix::io::RawFd', 'name': 'as_raw_fd' },
+ ],
+};