diff options
Diffstat (limited to 'src/test/ui/single-use-lifetime/one-use-in-inherent-impl-header.rs')
-rw-r--r-- | src/test/ui/single-use-lifetime/one-use-in-inherent-impl-header.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/single-use-lifetime/one-use-in-inherent-impl-header.rs b/src/test/ui/single-use-lifetime/one-use-in-inherent-impl-header.rs new file mode 100644 index 000000000..64f1c9118 --- /dev/null +++ b/src/test/ui/single-use-lifetime/one-use-in-inherent-impl-header.rs @@ -0,0 +1,22 @@ +#![deny(single_use_lifetimes)] +#![allow(dead_code)] +#![allow(unused_variables)] + +// Test that we DO warn for a lifetime used only once in an impl, and that we +// don't warn for the anonymous lifetime. + +struct Foo<'f> { + data: &'f u32 +} + +impl<'f> Foo<'f> { //~ ERROR `'f` only used once + fn inherent_a(&self) { + } +} + +impl Foo<'_> { + fn inherent_b(&self) {} +} + + +fn main() { } |