Auto merge of rust-lang#97841 - nvzqz:inline-encode-wide, r=thomcc

bors · bors · commit 7d1f57a757af · 2022-07-11T09:30:54.000Z
Inline Windows `OsStrExt::encode_wide`

User crates currently produce much more code than necessary because the optimizer fails to make assumptions about this method.
diff --git a/library/std/src/os/windows/ffi.rs b/library/std/src/os/windows/ffi.rs
@@ -129,6 +129,7 @@ pub trait OsStrExt: Sealed {
 
 #[stable(feature = "rust1", since = "1.0.0")]
 impl OsStrExt for OsStr {
+    #[inline]
     fn encode_wide(&self) -> EncodeWide<'_> {
         self.as_inner().inner.encode_wide()
     }

Original file line number	Diff line number	Diff line change
`@@ -129,6 +129,7 @@ pub trait OsStrExt: Sealed {`
`129`	`129`
`130`	`130`	`#[stable(feature = "rust1", since = "1.0.0")]`
`131`	`131`	`impl OsStrExt for OsStr {`
	`132`	`+ #[inline]`
`132`	`133`	`fn encode_wide(&self) -> EncodeWide<'_> {`
`133`	`134`	`self.as_inner().inner.encode_wide()`
`134`	`135`	`}`