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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/polymorphization/lifetimes.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/polymorphization/lifetimes.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/polymorphization/lifetimes.rs b/src/test/ui/polymorphization/lifetimes.rs new file mode 100644 index 000000000..f26df4523 --- /dev/null +++ b/src/test/ui/polymorphization/lifetimes.rs @@ -0,0 +1,25 @@ +// build-fail +// compile-flags:-Zpolymorphize=on +#![feature(rustc_attrs)] + +// This test checks that the polymorphization analysis doesn't break when the +// function/closure doesn't just have generic parameters. + +// Function has an unused generic parameter. +#[rustc_polymorphize_error] +pub fn unused<'a, T>(_: &'a u32) { + //~^ ERROR item has unused generic parameters +} + +#[rustc_polymorphize_error] +pub fn used<'a, T: Default>(_: &'a u32) -> u32 { + let _: T = Default::default(); + let add_one = |x: u32| x + 1; + //~^ ERROR item has unused generic parameters + add_one(3) +} + +fn main() { + unused::<u32>(&3); + used::<u32>(&3); +} |