| error[E0308]: mismatched types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:5:5 |
| | |
| LL | fn foo() -> impl std::fmt::Display { |
| | ---------------------- expected because this return type... |
| LL | if false { |
| LL | return 0i32; |
| | ---- ...is found to be `i32` here |
| LL | } |
| LL | 1u32 |
| | ^^^^ expected `i32`, found `u32` |
| | |
| = note: to return `impl Trait`, all returned values must be of the same type |
| = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits> |
| = help: you can instead return a boxed trait object using `Box<dyn std::fmt::Display>` |
| = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types> |
| = help: alternatively, create a new `enum` with a variant for each returned type |
| |
| error[E0308]: mismatched types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:13:16 |
| | |
| LL | fn bar() -> impl std::fmt::Display { |
| | ---------------------- expected because this return type... |
| LL | if false { |
| LL | return 0i32; |
| | ---- ...is found to be `i32` here |
| LL | } else { |
| LL | return 1u32; |
| | ^^^^ expected `i32`, found `u32` |
| | |
| = note: to return `impl Trait`, all returned values must be of the same type |
| = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits> |
| = help: you can instead return a boxed trait object using `Box<dyn std::fmt::Display>` |
| = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types> |
| = help: alternatively, create a new `enum` with a variant for each returned type |
| |
| error[E0308]: mismatched types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:22:9 |
| | |
| LL | fn baz() -> impl std::fmt::Display { |
| | ---------------------- expected because this return type... |
| LL | if false { |
| LL | return 0i32; |
| | ---- ...is found to be `i32` here |
| LL | } else { |
| LL | 1u32 |
| | ^^^^ expected `i32`, found `u32` |
| | |
| = note: to return `impl Trait`, all returned values must be of the same type |
| = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits> |
| = help: you can instead return a boxed trait object using `Box<dyn std::fmt::Display>` |
| = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types> |
| = help: alternatively, create a new `enum` with a variant for each returned type |
| |
| error[E0308]: `if` and `else` have incompatible types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:31:9 |
| | |
| LL | / if false { |
| LL | | 0i32 |
| | | ---- expected because of this |
| LL | | } else { |
| LL | | 1u32 |
| | | ^^^^ expected `i32`, found `u32` |
| LL | | |
| LL | | } |
| | |_____- `if` and `else` have incompatible types |
| |
| error[E0308]: mismatched types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:39:14 |
| | |
| LL | fn bat() -> impl std::fmt::Display { |
| | ---------------------- expected because this return type... |
| LL | match 13 { |
| LL | 0 => return 0i32, |
| | ---- ...is found to be `i32` here |
| LL | _ => 1u32, |
| | ^^^^ expected `i32`, found `u32` |
| | |
| = note: to return `impl Trait`, all returned values must be of the same type |
| = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits> |
| = help: you can instead return a boxed trait object using `Box<dyn std::fmt::Display>` |
| = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types> |
| = help: alternatively, create a new `enum` with a variant for each returned type |
| |
| error[E0308]: mismatched types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:45:5 |
| | |
| LL | fn can() -> impl std::fmt::Display { |
| | ---------------------- expected because this return type... |
| LL | / match 13 { |
| LL | | |
| LL | | 0 => return 0i32, |
| | | ---- ...is found to be `i32` here |
| LL | | 1 => 1u32, |
| LL | | _ => 2u32, |
| LL | | } |
| | |_____^ expected `i32`, found `u32` |
| | |
| = note: to return `impl Trait`, all returned values must be of the same type |
| = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits> |
| = help: you can instead return a boxed trait object using `Box<dyn std::fmt::Display>` |
| = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types> |
| = help: alternatively, create a new `enum` with a variant for each returned type |
| |
| error[E0308]: mismatched types |
| --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:59:13 |
| | |
| LL | fn cat() -> impl std::fmt::Display { |
| | ---------------------- expected because this return type... |
| ... |
| LL | return 0i32; |
| | ---- ...is found to be `i32` here |
| ... |
| LL | 1u32 |
| | ^^^^ expected `i32`, found `u32` |
| | |
| = note: to return `impl Trait`, all returned values must be of the same type |
| = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits> |
| = help: you can instead return a boxed trait object using `Box<dyn std::fmt::Display>` |
| = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types> |
| = help: alternatively, create a new `enum` with a variant for each returned type |
| |
| error: aborting due to 7 previous errors |
| |
| For more information about this error, try `rustc --explain E0308`. |