diff options
Diffstat (limited to '')
| -rw-r--r-- | src/test/ui/impl-trait/point-to-type-err-cause-on-impl-trait-return.stderr | 96 |
1 files changed, 90 insertions, 6 deletions
diff --git a/src/test/ui/impl-trait/point-to-type-err-cause-on-impl-trait-return.stderr b/src/test/ui/impl-trait/point-to-type-err-cause-on-impl-trait-return.stderr index 10510c175..3c65fd998 100644 --- a/src/test/ui/impl-trait/point-to-type-err-cause-on-impl-trait-return.stderr +++ b/src/test/ui/impl-trait/point-to-type-err-cause-on-impl-trait-return.stderr @@ -2,28 +2,43 @@ 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 of return type + | ---------------------- expected `i32` because of return type ... LL | 1u32 | ^^^^ expected `i32`, found `u32` + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | 1i32 + | ~~~ error[E0308]: mismatched types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:12:16 | LL | fn bar() -> impl std::fmt::Display { - | ---------------------- expected `_` because of return type + | ---------------------- expected `i32` because of return type ... LL | return 1u32; | ^^^^ expected `i32`, found `u32` + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | return 1i32; + | ~~~ error[E0308]: mismatched types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:20:9 | LL | fn baz() -> impl std::fmt::Display { - | ---------------------- expected `_` because of return type + | ---------------------- expected `i32` because of return type ... LL | 1u32 | ^^^^ expected `i32`, found `u32` + | +help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit + | +LL | }.try_into().unwrap() + | ++++++++++++++++++++ error[E0308]: `if` and `else` have incompatible types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:28:9 @@ -36,36 +51,66 @@ LL | | 1u32 | | ^^^^ expected `i32`, found `u32` LL | | } | |_____- `if` and `else` have incompatible types + | +help: you could change the return type to be a boxed trait object + | +LL | fn qux() -> Box<dyn std::fmt::Display> { + | ~~~~~~~ + +help: if you change the return type to expect trait objects, box the returned expressions + | +LL ~ Box::new(0i32) +LL | } else { +LL ~ Box::new(1u32) + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | 1i32 + | ~~~ error[E0308]: mismatched types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:35:14 | LL | fn bat() -> impl std::fmt::Display { - | ---------------------- expected `_` because of return type + | ---------------------- expected `i32` because of return type ... LL | _ => 1u32, | ^^^^ expected `i32`, found `u32` + | +help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit + | +LL | }.try_into().unwrap() + | ++++++++++++++++++++ error[E0308]: mismatched types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:40:5 | LL | fn can() -> impl std::fmt::Display { - | ---------------------- expected `_` because of return type + | ---------------------- expected `i32` because of return type LL | / match 13 { LL | | 0 => return 0i32, LL | | 1 => 1u32, LL | | _ => 2u32, LL | | } | |_____^ expected `i32`, found `u32` + | +help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit + | +LL | }.try_into().unwrap() + | ++++++++++++++++++++ error[E0308]: mismatched types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:53:13 | LL | fn cat() -> impl std::fmt::Display { - | ---------------------- expected `_` because of return type + | ---------------------- expected `i32` because of return type ... LL | 1u32 | ^^^^ expected `i32`, found `u32` + | +help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit + | +LL | }.try_into().unwrap() + | ++++++++++++++++++++ error[E0308]: `match` arms have incompatible types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:61:14 @@ -78,6 +123,20 @@ LL | | 1 => 1u32, LL | | _ => 2u32, LL | | } | |_____- `match` arms have incompatible types + | +help: you could change the return type to be a boxed trait object + | +LL | fn dog() -> Box<dyn std::fmt::Display> { + | ~~~~~~~ + +help: if you change the return type to expect trait objects, box the returned expressions + | +LL ~ 0 => Box::new(0i32), +LL ~ 1 => Box::new(1u32), + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | 1 => 1i32, + | ~~~ error[E0308]: `if` and `else` have incompatible types --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:97:9 @@ -90,6 +149,21 @@ LL | | 1u32 | | ^^^^ expected `i32`, found `u32` LL | | } | |_____- `if` and `else` have incompatible types + | +help: you could change the return type to be a boxed trait object + | +LL | fn apt() -> Box<dyn std::fmt::Display> { + | ~~~~~~~ + +help: if you change the return type to expect trait objects, box the returned expressions + | +LL ~ Box::new(0i32) +LL | } else { +LL ~ Box::new(1u32) + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | 1i32 + | ~~~ error[E0746]: return type cannot have an unboxed trait object --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:66:13 @@ -125,6 +199,11 @@ LL | | 1 => 1u32, LL | | _ => 2u32, LL | | } | |_____- `match` arms have incompatible types + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | 1 => 1i32, + | ~~~ error[E0746]: return type cannot have an unboxed trait object --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:77:13 @@ -164,6 +243,11 @@ LL | | 1u32 | | ^^^^ expected `i32`, found `u32` LL | | } | |_____- `if` and `else` have incompatible types + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL | 1i32 + | ~~~ error[E0746]: return type cannot have an unboxed trait object --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:85:13 |