mirror of https://github.com/rust-lang/rust
113 lines
4.5 KiB
Plaintext
113 lines
4.5 KiB
Plaintext
error[E0277]: the size for values of type `T` cannot be known at compilation time
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--> $DIR/adt-param-with-implicit-sized-bound.rs:25:9
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LL | struct Struct5<T: ?Sized>{
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| - this type parameter needs to be `Sized`
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LL | _t: X<T>,
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| ^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `X`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:18:10
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LL | struct X<T>(T);
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| ^ required by the implicit `Sized` requirement on this type parameter in `X`
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help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:18:10
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LL | struct X<T>(T);
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| ^ - ...if indirection were used here: `Box<T>`
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| |
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| this could be changed to `T: ?Sized`...
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help: consider removing the `?Sized` bound to make the type parameter `Sized`
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LL - struct Struct5<T: ?Sized>{
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LL + struct Struct5<T>{
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error[E0277]: the size for values of type `Self` cannot be known at compilation time
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--> $DIR/adt-param-with-implicit-sized-bound.rs:2:19
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LL | fn func1() -> Struct1<Self>;
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `Struct1`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:8:16
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LL | struct Struct1<T>{
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| ^ required by the implicit `Sized` requirement on this type parameter in `Struct1`
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help: consider further restricting `Self`
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LL | fn func1() -> Struct1<Self> where Self: Sized;
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| +++++++++++++++++
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help: consider relaxing the implicit `Sized` restriction
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LL | struct Struct1<T: ?Sized>{
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| ++++++++
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error[E0277]: the size for values of type `Self` cannot be known at compilation time
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--> $DIR/adt-param-with-implicit-sized-bound.rs:3:23
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LL | fn func2<'a>() -> Struct2<'a, Self>;
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| ^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `Struct2`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:11:20
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LL | struct Struct2<'a, T>{
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| ^ required by the implicit `Sized` requirement on this type parameter in `Struct2`
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help: consider further restricting `Self`
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LL | fn func2<'a>() -> Struct2<'a, Self> where Self: Sized;
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| +++++++++++++++++
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help: consider relaxing the implicit `Sized` restriction
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LL | struct Struct2<'a, T: ?Sized>{
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| ++++++++
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error[E0277]: the size for values of type `Self` cannot be known at compilation time
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--> $DIR/adt-param-with-implicit-sized-bound.rs:4:19
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LL | fn func3() -> Struct3<Self>;
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `Struct3`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:14:16
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LL | struct Struct3<T>{
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| ^ required by the implicit `Sized` requirement on this type parameter in `Struct3`
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help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:14:16
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LL | struct Struct3<T>{
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| ^ this could be changed to `T: ?Sized`...
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LL | _t: T,
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| - ...if indirection were used here: `Box<T>`
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help: consider further restricting `Self`
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LL | fn func3() -> Struct3<Self> where Self: Sized;
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| +++++++++++++++++
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error[E0277]: the size for values of type `Self` cannot be known at compilation time
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--> $DIR/adt-param-with-implicit-sized-bound.rs:5:19
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LL | fn func4() -> Struct4<Self>;
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `Struct4`
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--> $DIR/adt-param-with-implicit-sized-bound.rs:20:16
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LL | struct Struct4<T>{
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| ^ required by the implicit `Sized` requirement on this type parameter in `Struct4`
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help: consider further restricting `Self`
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LL | fn func4() -> Struct4<Self> where Self: Sized;
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| +++++++++++++++++
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help: consider relaxing the implicit `Sized` restriction
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LL | struct Struct4<T: ?Sized>{
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| ++++++++
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error: aborting due to 5 previous errors
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For more information about this error, try `rustc --explain E0277`.
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