mirror of https://github.com/rust-lang/rust.git
80 lines
3.0 KiB
Plaintext
80 lines
3.0 KiB
Plaintext
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/non-defaulted-item-fail.rs:1:12
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LL | #![feature(specialization, associated_type_defaults)]
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| ^^^^^^^^^^^^^^
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= note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
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= help: consider using `min_specialization` instead, which is more stable and complete
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= note: `#[warn(incomplete_features)]` on by default
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error[E0520]: `Ty` specializes an item from a parent `impl`, but that item is not marked `default`
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--> $DIR/non-defaulted-item-fail.rs:30:5
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LL | impl<T> Foo for Box<T> {
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| ---------------------- parent `impl` is here
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...
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LL | type Ty = Vec<()>;
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| ^^^^^^^ cannot specialize default item `Ty`
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= note: to specialize, `Ty` in the parent `impl` must be marked `default`
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error[E0520]: `CONST` specializes an item from a parent `impl`, but that item is not marked `default`
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--> $DIR/non-defaulted-item-fail.rs:32:5
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LL | impl<T> Foo for Box<T> {
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| ---------------------- parent `impl` is here
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...
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LL | const CONST: u8 = 42;
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| ^^^^^^^^^^^^^^^ cannot specialize default item `CONST`
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= note: to specialize, `CONST` in the parent `impl` must be marked `default`
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error[E0520]: `foo` specializes an item from a parent `impl`, but that item is not marked `default`
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--> $DIR/non-defaulted-item-fail.rs:34:5
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LL | impl<T> Foo for Box<T> {
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| ---------------------- parent `impl` is here
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...
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LL | fn foo(&self) -> bool { true }
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| ^^^^^^^^^^^^^^^^^^^^^ cannot specialize default item `foo`
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= note: to specialize, `foo` in the parent `impl` must be marked `default`
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error[E0520]: `Ty` specializes an item from a parent `impl`, but that item is not marked `default`
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--> $DIR/non-defaulted-item-fail.rs:46:5
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LL | impl<T> Foo for Vec<T> {}
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| ---------------------- parent `impl` is here
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...
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LL | type Ty = Vec<()>;
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| ^^^^^^^ cannot specialize default item `Ty`
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= note: to specialize, `Ty` in the parent `impl` must be marked `default`
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error[E0520]: `CONST` specializes an item from a parent `impl`, but that item is not marked `default`
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--> $DIR/non-defaulted-item-fail.rs:48:5
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LL | impl<T> Foo for Vec<T> {}
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| ---------------------- parent `impl` is here
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...
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LL | const CONST: u8 = 42;
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| ^^^^^^^^^^^^^^^ cannot specialize default item `CONST`
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= note: to specialize, `CONST` in the parent `impl` must be marked `default`
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error[E0520]: `foo` specializes an item from a parent `impl`, but that item is not marked `default`
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--> $DIR/non-defaulted-item-fail.rs:50:5
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LL | impl<T> Foo for Vec<T> {}
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| ---------------------- parent `impl` is here
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...
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LL | fn foo(&self) -> bool { true }
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| ^^^^^^^^^^^^^^^^^^^^^ cannot specialize default item `foo`
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= note: to specialize, `foo` in the parent `impl` must be marked `default`
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error: aborting due to 6 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0520`.
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