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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/rust-2021/future-prelude-collision-generic.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/rust-2021/future-prelude-collision-generic.rs')
-rw-r--r-- | tests/ui/rust-2021/future-prelude-collision-generic.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/ui/rust-2021/future-prelude-collision-generic.rs b/tests/ui/rust-2021/future-prelude-collision-generic.rs new file mode 100644 index 000000000..d7f8affc6 --- /dev/null +++ b/tests/ui/rust-2021/future-prelude-collision-generic.rs @@ -0,0 +1,37 @@ +// test for https://github.com/rust-lang/rust/issues/86940 +// run-rustfix +// edition:2018 +// check-pass +#![warn(rust_2021_prelude_collisions)] +#![allow(dead_code)] +#![allow(unused_imports)] + +struct Generic<'a, U>(&'a U); + +trait MyFromIter { + fn from_iter(_: i32) -> Self; +} + +impl MyFromIter for Generic<'static, i32> { + fn from_iter(_: i32) -> Self { + todo!() + } +} + +impl std::iter::FromIterator<i32> for Generic<'static, i32> { + fn from_iter<T: IntoIterator<Item = i32>>(_: T) -> Self { + todo!() + } +} + +fn main() { + Generic::from_iter(1); + //~^ WARNING trait-associated function `from_iter` will become ambiguous in Rust 2021 + //~| this is accepted in the current edition (Rust 2018) + Generic::<'static, i32>::from_iter(1); + //~^ WARNING trait-associated function `from_iter` will become ambiguous in Rust 2021 + //~| this is accepted in the current edition (Rust 2018) + Generic::<'_, _>::from_iter(1); + //~^ WARNING trait-associated function `from_iter` will become ambiguous in Rust 2021 + //~| this is accepted in the current edition (Rust 2018) +} |