rust/tests/ui/static/static-lifetime-bound.rs

fn f<'a: 'static>(_: &'a i32) {}

fn main() {
    let x = 0;
    f(&x); //~ERROR does not live long enough
}
Convert a hard-warning about named static lifetimes into lint "unused_lifetimes" Define the `named_static_lifetimes` lint This lint will replace the existing hard-warning. Replace the named static lifetime hard-warning with the new lint Update the UI tests for the `named_static_lifetimes` lint Remove the direct dependency on `rustc_lint_defs` fix build Signed-off-by: Zhi Qi <qizhi@pingcap.com> use "UNUSED_LIFETIMES" instead Signed-off-by: Zhi Qi <qizhi@pingcap.com> update 1 test and fix typo Signed-off-by: Zhi Qi <qizhi@pingcap.com> update tests Signed-off-by: Zhi Qi <qizhi@pingcap.com> fix tests: add extra blank line Signed-off-by: Zhi Qi <qizhi@pingcap.com> 2023-02-22 01:41:48 +00:00			`fn f<'a: 'static>(_: &'a i32) {}`
Warn when using a `'static` lifetime bound Previously a `'static` lifetime bound would result in an `undeclared lifetime` error when compiling, even though it could be considered valid. However, it is unnecessary to use it as a lifetime bound so we present the user with a warning instead and suggest using the `'static` lifetime directly, in place of the lifetime parameter. 2017-03-21 12:38:32 +00:00
			`fn main() {`
			`let x = 0;`
			`f(&x); //~ERROR does not live long enough`
			`}`