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