diff options
| -rw-r--r-- | src/librustc_typeck/coherence/orphan.rs | 1 | ||||
| -rw-r--r-- | src/test/compile-fail/E0117.rs | 1 | ||||
| -rw-r--r-- | src/test/compile-fail/E0206.rs | 1 | ||||
| -rw-r--r-- | src/test/compile-fail/coherence-impls-copy.rs | 5 |
4 files changed, 7 insertions, 1 deletions
diff --git a/src/librustc_typeck/coherence/orphan.rs b/src/librustc_typeck/coherence/orphan.rs index 2b5a4515cd0..c54f467a4c4 100644 --- a/src/librustc_typeck/coherence/orphan.rs +++ b/src/librustc_typeck/coherence/orphan.rs @@ -263,6 +263,7 @@ impl<'cx, 'tcx, 'v> ItemLikeVisitor<'v> for OrphanChecker<'cx, 'tcx> { .span_label(item.span, &format!("impl doesn't use types inside crate")) .note(&format!("the impl does not reference any types defined in \ this crate")) + .note("define and implement a trait or new type instead") .emit(); return; } diff --git a/src/test/compile-fail/E0117.rs b/src/test/compile-fail/E0117.rs index e9375e67325..4ba9c3382f3 100644 --- a/src/test/compile-fail/E0117.rs +++ b/src/test/compile-fail/E0117.rs @@ -11,6 +11,7 @@ impl Drop for u32 {} //~ ERROR E0117 //~^ NOTE impl doesn't use types inside crate //~| NOTE the impl does not reference any types defined in this crate +//~| NOTE define and implement a trait or new type instead fn main() { } diff --git a/src/test/compile-fail/E0206.rs b/src/test/compile-fail/E0206.rs index 888e42ed3a1..1131e8e1b01 100644 --- a/src/test/compile-fail/E0206.rs +++ b/src/test/compile-fail/E0206.rs @@ -16,6 +16,7 @@ impl Copy for Foo { } //~| ERROR only traits defined in the current crate can be implemented for arbitrary types //~| NOTE impl doesn't use types inside crate //~| NOTE the impl does not reference any types defined in this crate +//~| NOTE define and implement a trait or new type instead #[derive(Copy, Clone)] struct Bar; diff --git a/src/test/compile-fail/coherence-impls-copy.rs b/src/test/compile-fail/coherence-impls-copy.rs index f686a146042..fe121a3bc48 100644 --- a/src/test/compile-fail/coherence-impls-copy.rs +++ b/src/test/compile-fail/coherence-impls-copy.rs @@ -37,6 +37,7 @@ impl Copy for (MyType, MyType) {} //~| ERROR only traits defined in the current crate can be implemented for arbitrary types //~| NOTE impl doesn't use types inside crate //~| NOTE the impl does not reference any types defined in this crate +//~| NOTE define and implement a trait or new type instead impl Copy for &'static NotSync {} //~^ ERROR the trait `Copy` may not be implemented for this type @@ -46,8 +47,9 @@ impl Copy for [MyType] {} //~^ ERROR the trait `Copy` may not be implemented for this type //~| NOTE type is not a structure or enumeration //~| ERROR only traits defined in the current crate can be implemented for arbitrary types -//~| NOTE impl doesn't use types inside crate //~| NOTE the impl does not reference any types defined in this crate +//~| NOTE define and implement a trait or new type instead +//~| NOTE impl doesn't use types inside crate impl Copy for &'static [NotSync] {} //~^ ERROR the trait `Copy` may not be implemented for this type @@ -55,6 +57,7 @@ impl Copy for &'static [NotSync] {} //~| ERROR only traits defined in the current crate can be implemented for arbitrary types //~| NOTE impl doesn't use types inside crate //~| NOTE the impl does not reference any types defined in this crate +//~| NOTE define and implement a trait or new type instead fn main() { } |