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warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/equality2.rs:1:12
|
LL | #![feature(specialization)]
| ^^^^^^^^^^^^^^
|
= note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
= help: consider using `min_specialization` instead, which is more stable and complete
= note: `#[warn(incomplete_features)]` on by default
error[E0308]: mismatched types
--> $DIR/equality2.rs:25:18
|
LL | fn hide<T: Foo>(x: T) -> impl Foo {
| -------- the found opaque type
...
LL | let _: u32 = hide(0_u32);
| --- ^^^^^^^^^^^ expected `u32`, found opaque type
| |
| expected due to this
|
= note: expected type `u32`
found opaque type `impl Foo`
error[E0308]: mismatched types
--> $DIR/equality2.rs:31:18
|
LL | fn hide<T: Foo>(x: T) -> impl Foo {
| -------- the found opaque type
...
LL | let _: i32 = Leak::leak(hide(0_i32));
| --- ^^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found associated type
| |
| expected due to this
|
= note: expected type `i32`
found associated type `<impl Foo as Leak>::T`
help: consider constraining the associated type `<impl Foo as Leak>::T` to `i32`
|
LL | fn hide<T: Foo>(x: T) -> impl Foo<T = i32> {
| +++++++++
error[E0308]: mismatched types
--> $DIR/equality2.rs:38:10
|
LL | fn hide<T: Foo>(x: T) -> impl Foo {
| --------
| |
| the expected opaque type
| the found opaque type
...
LL | x = (x.1,
| ^^^ expected `u32`, found `i32`
|
= note: expected opaque type `impl Foo` (`u32`)
found opaque type `impl Foo` (`i32`)
= note: distinct uses of `impl Trait` result in different opaque types
error[E0308]: mismatched types
--> $DIR/equality2.rs:41:10
|
LL | fn hide<T: Foo>(x: T) -> impl Foo {
| --------
| |
| the expected opaque type
| the found opaque type
...
LL | x.0);
| ^^^ expected `i32`, found `u32`
|
= note: expected opaque type `impl Foo` (`i32`)
found opaque type `impl Foo` (`u32`)
= note: distinct uses of `impl Trait` result in different opaque types
error: aborting due to 4 previous errors; 1 warning emitted
For more information about this error, try `rustc --explain E0308`.
|
