// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// ignore-tidy-linelength
+
// Various examples of structs whose fields are not well-formed.
#![allow(dead_code)]
+trait Dummy<'a> {
+ type Out;
+}
+impl<'a, T> Dummy<'a> for T
+where T: 'a
+{
+ type Out = ();
+}
+type RequireOutlives<'a, T> = <T as Dummy<'a>>::Out;
+
enum Ref1<'a, T> {
- Ref1Variant1(&'a T) //~ ERROR the parameter type `T` may not live long enough
+ Ref1Variant1(RequireOutlives<'a, T>) //~ ERROR the parameter type `T` may not live long enough
}
enum Ref2<'a, T> {
Ref2Variant1,
- Ref2Variant2(isize, &'a T), //~ ERROR the parameter type `T` may not live long enough
+ Ref2Variant2(isize, RequireOutlives<'a, T>), //~ ERROR the parameter type `T` may not live long enough
}
enum RefOk<'a, T:'a> {
RefOkVariant1(&'a T)
}
+// This is now well formed. RFC 2093
enum RefIndirect<'a, T> {
RefIndirectVariant1(isize, RefOk<'a,T>)
- //~^ ERROR the parameter type `T` may not live long enough
}
-enum RefDouble<'a, 'b, T> {
- RefDoubleVariant1(&'a &'b T)
- //~^ ERROR reference has a longer lifetime than the data
+enum RefDouble<'a, 'b, T> { //~ ERROR 45:1: 48:2: the parameter type `T` may not live long enough [E0309]
+ RefDoubleVariant1(&'a RequireOutlives<'b, T>)
+ //~^ 46:23: 46:49: the parameter type `T` may not live long enough [E0309]
}
fn main() { }