diff --git a/tests/ui/auxiliary/proc_macro_derive.rs b/tests/ui/auxiliary/proc_macro_derive.rs index ed7b17651e6..a89a06308d0 100644 --- a/tests/ui/auxiliary/proc_macro_derive.rs +++ b/tests/ui/auxiliary/proc_macro_derive.rs @@ -72,3 +72,17 @@ fn line_wrapper() { } ) } + +#[proc_macro_derive(ExtraLifetimeDerive)] +#[allow(unused)] +pub fn extra_lifetime(_input: TokenStream) -> TokenStream { + quote!( + pub struct ExtraLifetime; + + impl<'b> ExtraLifetime { + pub fn something<'c>() -> Self { + Self + } + } + ) +} diff --git a/tests/ui/extra_unused_lifetimes.rs b/tests/ui/extra_unused_lifetimes.rs index f76127a7105..d6631e01290 100644 --- a/tests/ui/extra_unused_lifetimes.rs +++ b/tests/ui/extra_unused_lifetimes.rs @@ -1,3 +1,5 @@ +// aux-build:proc_macro_derive.rs + #![allow( unused, dead_code, @@ -7,6 +9,9 @@ )] #![warn(clippy::extra_unused_lifetimes)] +#[macro_use] +extern crate proc_macro_derive; + fn empty() {} fn used_lt<'a>(x: &'a u8) {} @@ -114,4 +119,11 @@ fn hey() {} } } +// Should not lint +#[derive(ExtraLifetimeDerive)] +struct Human<'a> { + pub bones: i32, + pub name: &'a str, +} + fn main() {} diff --git a/tests/ui/extra_unused_lifetimes.stderr b/tests/ui/extra_unused_lifetimes.stderr index fcc12d4ce14..26ebc3976df 100644 --- a/tests/ui/extra_unused_lifetimes.stderr +++ b/tests/ui/extra_unused_lifetimes.stderr @@ -1,5 +1,5 @@ error: this lifetime isn't used in the function definition - --> $DIR/extra_unused_lifetimes.rs:14:14 + --> $DIR/extra_unused_lifetimes.rs:19:14 | LL | fn unused_lt<'a>(x: u8) {} | ^^ @@ -7,31 +7,31 @@ LL | fn unused_lt<'a>(x: u8) {} = note: `-D clippy::extra-unused-lifetimes` implied by `-D warnings` error: this lifetime isn't used in the function definition - --> $DIR/extra_unused_lifetimes.rs:41:10 + --> $DIR/extra_unused_lifetimes.rs:46:10 | LL | fn x<'a>(&self) {} | ^^ error: this lifetime isn't used in the function definition - --> $DIR/extra_unused_lifetimes.rs:67:22 + --> $DIR/extra_unused_lifetimes.rs:72:22 | LL | fn unused_lt<'a>(x: u8) {} | ^^ error: this lifetime isn't used in the impl - --> $DIR/extra_unused_lifetimes.rs:78:10 + --> $DIR/extra_unused_lifetimes.rs:83:10 | LL | impl<'a> std::ops::AddAssign<&Scalar> for &mut Scalar { | ^^ error: this lifetime isn't used in the impl - --> $DIR/extra_unused_lifetimes.rs:84:10 + --> $DIR/extra_unused_lifetimes.rs:89:10 | LL | impl<'b> Scalar { | ^^ error: this lifetime isn't used in the function definition - --> $DIR/extra_unused_lifetimes.rs:85:26 + --> $DIR/extra_unused_lifetimes.rs:90:26 | LL | pub fn something<'c>() -> Self { | ^^