From dcdde01aa36f6d441106e2cbb2fafa86edb90149 Mon Sep 17 00:00:00 2001 From: Jendrik Date: Thu, 13 Jan 2022 14:57:57 +0100 Subject: add #[must_use] to functions of slice and its iterators. --- .../ui/iterators/into-iter-on-arrays-lint.fixed | 1 + src/test/ui/iterators/into-iter-on-arrays-lint.rs | 1 + .../ui/iterators/into-iter-on-arrays-lint.stderr | 24 +++++++++++----------- 3 files changed, 14 insertions(+), 12 deletions(-) (limited to 'src/test') diff --git a/src/test/ui/iterators/into-iter-on-arrays-lint.fixed b/src/test/ui/iterators/into-iter-on-arrays-lint.fixed index 0055758a6a4..6e02a7024b9 100644 --- a/src/test/ui/iterators/into-iter-on-arrays-lint.fixed +++ b/src/test/ui/iterators/into-iter-on-arrays-lint.fixed @@ -2,6 +2,7 @@ // run-rustfix // rustfix-only-machine-applicable +#[allow(unused_must_use)] fn main() { let small = [1, 2]; let big = [0u8; 33]; diff --git a/src/test/ui/iterators/into-iter-on-arrays-lint.rs b/src/test/ui/iterators/into-iter-on-arrays-lint.rs index 01857c78a73..582d5cadd06 100644 --- a/src/test/ui/iterators/into-iter-on-arrays-lint.rs +++ b/src/test/ui/iterators/into-iter-on-arrays-lint.rs @@ -2,6 +2,7 @@ // run-rustfix // rustfix-only-machine-applicable +#[allow(unused_must_use)] fn main() { let small = [1, 2]; let big = [0u8; 33]; diff --git a/src/test/ui/iterators/into-iter-on-arrays-lint.stderr b/src/test/ui/iterators/into-iter-on-arrays-lint.stderr index 634728096ed..e32d35d8638 100644 --- a/src/test/ui/iterators/into-iter-on-arrays-lint.stderr +++ b/src/test/ui/iterators/into-iter-on-arrays-lint.stderr @@ -1,5 +1,5 @@ warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:10:11 + --> $DIR/into-iter-on-arrays-lint.rs:11:11 | LL | small.into_iter(); | ^^^^^^^^^ @@ -17,7 +17,7 @@ LL | IntoIterator::into_iter(small); | ++++++++++++++++++++++++ ~ warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:13:12 + --> $DIR/into-iter-on-arrays-lint.rs:14:12 | LL | [1, 2].into_iter(); | ^^^^^^^^^ @@ -34,7 +34,7 @@ LL | IntoIterator::into_iter([1, 2]); | ++++++++++++++++++++++++ ~ warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:16:9 + --> $DIR/into-iter-on-arrays-lint.rs:17:9 | LL | big.into_iter(); | ^^^^^^^^^ @@ -51,7 +51,7 @@ LL | IntoIterator::into_iter(big); | ++++++++++++++++++++++++ ~ warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:19:15 + --> $DIR/into-iter-on-arrays-lint.rs:20:15 | LL | [0u8; 33].into_iter(); | ^^^^^^^^^ @@ -68,7 +68,7 @@ LL | IntoIterator::into_iter([0u8; 33]); | ++++++++++++++++++++++++ ~ warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:23:21 + --> $DIR/into-iter-on-arrays-lint.rs:24:21 | LL | Box::new(small).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -77,7 +77,7 @@ LL | Box::new(small).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:26:22 + --> $DIR/into-iter-on-arrays-lint.rs:27:22 | LL | Box::new([1, 2]).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -86,7 +86,7 @@ LL | Box::new([1, 2]).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:29:19 + --> $DIR/into-iter-on-arrays-lint.rs:30:19 | LL | Box::new(big).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -95,7 +95,7 @@ LL | Box::new(big).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:32:25 + --> $DIR/into-iter-on-arrays-lint.rs:33:25 | LL | Box::new([0u8; 33]).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -104,7 +104,7 @@ LL | Box::new([0u8; 33]).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:36:31 + --> $DIR/into-iter-on-arrays-lint.rs:37:31 | LL | Box::new(Box::new(small)).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -113,7 +113,7 @@ LL | Box::new(Box::new(small)).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:39:32 + --> $DIR/into-iter-on-arrays-lint.rs:40:32 | LL | Box::new(Box::new([1, 2])).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -122,7 +122,7 @@ LL | Box::new(Box::new([1, 2])).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:42:29 + --> $DIR/into-iter-on-arrays-lint.rs:43:29 | LL | Box::new(Box::new(big)).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` @@ -131,7 +131,7 @@ LL | Box::new(Box::new(big)).into_iter(); = note: for more information, see warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 - --> $DIR/into-iter-on-arrays-lint.rs:45:35 + --> $DIR/into-iter-on-arrays-lint.rs:46:35 | LL | Box::new(Box::new([0u8; 33])).into_iter(); | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` -- cgit 1.4.1-3-g733a5