f0845adb0c
```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
--> $DIR/attempted-access-non-fatal.rs:7:15
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LL | let _ = 2.l;
| ^
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help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
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LL - let _ = 2.l;
LL + let _ = 2.0f64;
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```
139 lines
6 KiB
Text
139 lines
6 KiB
Text
error[E0038]: the trait `DynIncompatible` is not dyn compatible
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:22:13
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LL | fn car() -> dyn DynIncompatible {
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| ^^^^^^^^^^^^^^^^^^^ `DynIncompatible` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
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for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:4:8
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LL | trait DynIncompatible {
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| --------------- this trait is not dyn compatible...
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LL | fn foo() -> Self;
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| ^^^ ...because associated function `foo` has no `self` parameter
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= help: the following types implement `DynIncompatible`:
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A
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B
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consider defining an enum where each variant holds one of these types,
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implementing `DynIncompatible` for this new enum and using it instead
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help: consider turning `foo` into a method by giving it a `&self` argument
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LL | fn foo(&self) -> Self;
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| +++++
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help: alternatively, consider constraining `foo` so it does not apply to trait objects
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LL | fn foo() -> Self where Self: Sized;
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| +++++++++++++++++
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error[E0746]: return type cannot be a trait object without pointer indirection
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:22:13
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LL | fn car() -> dyn DynIncompatible {
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| ^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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help: consider returning an `impl Trait` instead of a `dyn Trait`
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LL - fn car() -> dyn DynIncompatible {
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LL + fn car() -> impl DynIncompatible {
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help: alternatively, box the return type, and wrap all of the returned values in `Box::new`
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LL ~ fn car() -> Box<dyn DynIncompatible> {
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LL |
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LL | if true {
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LL ~ return Box::new(A);
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LL | }
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LL ~ Box::new(B)
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error[E0038]: the trait `DynIncompatible` is not dyn compatible
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:30:17
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LL | fn cat() -> Box<dyn DynIncompatible> {
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| ^^^^^^^^^^^^^^^^^^^ `DynIncompatible` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
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for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:4:8
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LL | trait DynIncompatible {
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| --------------- this trait is not dyn compatible...
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LL | fn foo() -> Self;
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| ^^^ ...because associated function `foo` has no `self` parameter
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= help: the following types implement `DynIncompatible`:
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A
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B
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consider defining an enum where each variant holds one of these types,
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implementing `DynIncompatible` for this new enum and using it instead
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help: consider turning `foo` into a method by giving it a `&self` argument
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LL | fn foo(&self) -> Self;
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| +++++
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help: alternatively, consider constraining `foo` so it does not apply to trait objects
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LL | fn foo() -> Self where Self: Sized;
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| +++++++++++++++++
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error[E0038]: the trait `DynIncompatible` is not dyn compatible
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:32:16
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LL | return Box::new(A);
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| ^^^^^^^^^^^ `DynIncompatible` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
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for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:4:8
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LL | trait DynIncompatible {
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| --------------- this trait is not dyn compatible...
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LL | fn foo() -> Self;
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| ^^^ ...because associated function `foo` has no `self` parameter
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= help: the following types implement `DynIncompatible`:
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A
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B
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consider defining an enum where each variant holds one of these types,
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implementing `DynIncompatible` for this new enum and using it instead
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= note: required for the cast from `Box<A>` to `Box<(dyn DynIncompatible + 'static)>`
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help: consider turning `foo` into a method by giving it a `&self` argument
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LL | fn foo(&self) -> Self;
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| +++++
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help: alternatively, consider constraining `foo` so it does not apply to trait objects
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LL | fn foo() -> Self where Self: Sized;
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| +++++++++++++++++
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error[E0038]: the trait `DynIncompatible` is not dyn compatible
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:34:5
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LL | Box::new(B)
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| ^^^^^^^^^^^ `DynIncompatible` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
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for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
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--> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:4:8
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LL | trait DynIncompatible {
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| --------------- this trait is not dyn compatible...
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LL | fn foo() -> Self;
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| ^^^ ...because associated function `foo` has no `self` parameter
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= help: the following types implement `DynIncompatible`:
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A
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B
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consider defining an enum where each variant holds one of these types,
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implementing `DynIncompatible` for this new enum and using it instead
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= note: required for the cast from `Box<B>` to `Box<(dyn DynIncompatible + 'static)>`
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help: consider turning `foo` into a method by giving it a `&self` argument
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LL | fn foo(&self) -> Self;
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| +++++
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help: alternatively, consider constraining `foo` so it does not apply to trait objects
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LL | fn foo() -> Self where Self: Sized;
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| +++++++++++++++++
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error: aborting due to 5 previous errors
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Some errors have detailed explanations: E0038, E0746.
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For more information about an error, try `rustc --explain E0038`.
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