//@ compile-flags:--cfg yes --check-cfg=cfg(yes,no) fn f_lt<#[cfg(yes)] 'a: 'a, #[cfg(FALSE)] T>() {} fn f_ty<#[cfg(FALSE)] 'a: 'a, #[cfg(yes)] T>() {} type FnGood = for<#[cfg(yes)] 'a, #[cfg(FALSE)] T> fn(); // OK type FnBad = for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> fn(); //~^ ERROR only lifetime parameters can be used in this context type PolyGood = dyn for<#[cfg(yes)] 'a, #[cfg(FALSE)] T> Copy; // OK type PolyBad = dyn for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> Copy; //~^ ERROR only lifetime parameters can be used in this context struct WhereGood where for<#[cfg(yes)] 'a, #[cfg(FALSE)] T> u8: Copy; // OK struct WhereBad where for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> u8: Copy; //~^ ERROR only lifetime parameters can be used in this context fn f_lt_no<#[cfg_attr(FALSE, unknown)] 'a>() {} // OK fn f_lt_yes<#[cfg_attr(yes, unknown)] 'a>() {} //~^ ERROR cannot find attribute `unknown` in this scope fn f_ty_no<#[cfg_attr(FALSE, unknown)] T>() {} // OK fn f_ty_yes<#[cfg_attr(yes, unknown)] T>() {} //~^ ERROR cannot find attribute `unknown` in this scope type FnNo = for<#[cfg_attr(FALSE, unknown)] 'a> fn(); // OK type FnYes = for<#[cfg_attr(yes, unknown)] 'a> fn(); //~^ ERROR cannot find attribute `unknown` in this scope type PolyNo = dyn for<#[cfg_attr(FALSE, unknown)] 'a> Copy; // OK type PolyYes = dyn for<#[cfg_attr(yes, unknown)] 'a> Copy; //~^ ERROR cannot find attribute `unknown` in this scope struct WhereNo where for<#[cfg_attr(FALSE, unknown)] 'a> u8: Copy; // OK struct WhereYes where for<#[cfg_attr(yes, unknown)] 'a> u8: Copy; //~^ ERROR cannot find attribute `unknown` in this scope fn main() { f_lt::<'static>(); f_ty::(); }