Rollup merge of #99880 - compiler-errors:escape-ascii-is-not-exact-size-iterator, r=thomcc

matthiaskrgr · web-flow · commit e6f6ad0576d6 · 2022-10-08T23:32:02.000+02:00
`EscapeAscii` is not an `ExactSizeIterator` Fixes #99878 Do we want/need `EscapeAscii` to be an `ExactSizeIterator`? I guess we could precompute the length of the output if so?
diff --git a/library/core/src/slice/ascii.rs b/library/core/src/slice/ascii.rs
@@ -215,8 +215,6 @@ impl<'a> iter::DoubleEndedIterator for EscapeAscii<'a> {
     }
 }
 #[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
-impl<'a> iter::ExactSizeIterator for EscapeAscii<'a> {}
-#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> iter::FusedIterator for EscapeAscii<'a> {}
 #[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> fmt::Display for EscapeAscii<'a> {

Original file line number	Diff line number	Diff line change
`@@ -215,8 +215,6 @@ impl<'a> iter::DoubleEndedIterator for EscapeAscii<'a> {`
`215`	`215`	`}`
`216`	`216`	`}`
`217`	`217`	`#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]`
`218`		`-impl<'a> iter::ExactSizeIterator for EscapeAscii<'a> {}`
`219`		`-#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]`
`220`	`218`	`impl<'a> iter::FusedIterator for EscapeAscii<'a> {}`
`221`	`219`	`#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]`
`222`	`220`	`impl<'a> fmt::Display for EscapeAscii<'a> {`