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Rollup merge of #95805 - c410-f3r:meta-vars, r=petrochenkov

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Left overs of #95761

These are just nits. Feel free to close this PR if all modifications are not worth merging.

* `#![feature(decl_macro)]` is not needed anymore in `rustc_expand`
* `tuple_impls` does not require `$Tuple:ident`. I guess it is there to enhance readability?

r? ```@petrochenkov```
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Dylan DPC 2022-04-09 18:26:27 +02:00 committed by GitHub
commit 5092946041
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2 changed files with 13 additions and 14 deletions
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1
compiler/rustc_expand/src/lib.rs
View File

@ -2,7 +2,6 @@
#![feature(associated_type_bounds)]
#![feature(associated_type_defaults)]
#![feature(crate_visibility_modifier)]
#![feature(decl_macro)]
#![feature(if_let_guard)]
#![feature(let_chains)]
#![feature(let_else)]

26
library/core/src/tuple.rs
View File

@ -5,7 +5,7 @@ use crate::cmp::*;
// macro for implementing n-ary tuple functions and operations
macro_rules! tuple_impls {
( $( $Tuple:ident( $( $T:ident )+ ) )+ ) => {
( $( ( $( $T:ident )+ ) )+ ) => {
$(
#[stable(feature = "rust1", since = "1.0.0")]
impl<$($T:PartialEq),+> PartialEq for ($($T,)+) where last_type!($($T,)+): ?Sized {
@ -106,16 +106,16 @@ macro_rules! last_type {
}
tuple_impls! {
Tuple1(A)
Tuple2(A B)
Tuple3(A B C)
Tuple4(A B C D)
Tuple5(A B C D E)
Tuple6(A B C D E F)
Tuple7(A B C D E F G)
Tuple8(A B C D E F G H)
Tuple9(A B C D E F G H I)
Tuple10(A B C D E F G H I J)
Tuple11(A B C D E F G H I J K)
Tuple12(A B C D E F G H I J K L)
(A)
(A B)
(A B C)
(A B C D)
(A B C D E)
(A B C D E F)
(A B C D E F G)
(A B C D E F G H)
(A B C D E F G H I)
(A B C D E F G H I J)
(A B C D E F G H I J K)
(A B C D E F G H I J K L)
}