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|
error[E0277]: the size for values of type `Y` cannot be known at compilation time
--> $DIR/unsized6.rs:9:9
|
LL | fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
| - this type parameter needs to be `Sized`
...
LL | let y: Y;
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
LL + fn f1<W: ?Sized, X: ?Sized, Y, Z: ?Sized>(x: &X) {
|
help: consider borrowing here
|
LL | let y: &Y;
| +
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:7:12
|
LL | fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
| - this type parameter needs to be `Sized`
LL | let _: W; // <-- this is OK, no bindings created, no initializer.
LL | let _: (isize, (X, isize));
| ^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= note: only the last element of a tuple may have a dynamically sized type
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
LL + fn f1<W: ?Sized, X, Y: ?Sized, Z: ?Sized>(x: &X) {
|
error[E0277]: the size for values of type `Z` cannot be known at compilation time
--> $DIR/unsized6.rs:11:12
|
LL | fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
| - this type parameter needs to be `Sized`
...
LL | let y: (isize, (Z, usize));
| ^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= note: only the last element of a tuple may have a dynamically sized type
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
LL + fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z>(x: &X) {
|
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:15:9
|
LL | fn f2<X: ?Sized, Y: ?Sized>(x: &X) {
| - this type parameter needs to be `Sized`
LL | let y: X;
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f2<X: ?Sized, Y: ?Sized>(x: &X) {
LL + fn f2<X, Y: ?Sized>(x: &X) {
|
help: consider borrowing here
|
LL | let y: &X;
| +
error[E0277]: the size for values of type `Y` cannot be known at compilation time
--> $DIR/unsized6.rs:17:12
|
LL | fn f2<X: ?Sized, Y: ?Sized>(x: &X) {
| - this type parameter needs to be `Sized`
...
LL | let y: (isize, (Y, isize));
| ^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= note: only the last element of a tuple may have a dynamically sized type
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f2<X: ?Sized, Y: ?Sized>(x: &X) {
LL + fn f2<X: ?Sized, Y>(x: &X) {
|
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:22:9
|
LL | fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
| - this type parameter needs to be `Sized`
LL | let y: X = *x1;
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
LL + fn f3<X>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
|
help: consider borrowing here
|
LL | let y: &X = *x1;
| +
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:24:9
|
LL | fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
| - this type parameter needs to be `Sized`
...
LL | let y = *x2;
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
LL + fn f3<X>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
|
help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression
|
LL - let y = *x2;
LL + let y = x2;
|
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:26:10
|
LL | fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
| - this type parameter needs to be `Sized`
...
LL | let (y, z) = (*x3, 4);
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
LL + fn f3<X>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
|
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:30:9
|
LL | fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
| - this type parameter needs to be `Sized`
LL | let y: X = *x1;
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
LL + fn f4<X: T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
|
help: consider borrowing here
|
LL | let y: &X = *x1;
| +
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:32:9
|
LL | fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
| - this type parameter needs to be `Sized`
...
LL | let y = *x2;
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
LL + fn f4<X: T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
|
help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression
|
LL - let y = *x2;
LL + let y = x2;
|
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:34:10
|
LL | fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
| - this type parameter needs to be `Sized`
...
LL | let (y, z) = (*x3, 4);
| ^ doesn't have a size known at compile-time
|
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
LL + fn f4<X: T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
|
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:38:21
|
LL | fn g1<X: ?Sized>(x: X) {}
| - ^ doesn't have a size known at compile-time
| |
| this type parameter needs to be `Sized`
|
= help: unsized fn params are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn g1<X: ?Sized>(x: X) {}
LL + fn g1<X>(x: X) {}
|
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn g1<X: ?Sized>(x: &X) {}
| +
error[E0277]: the size for values of type `X` cannot be known at compilation time
--> $DIR/unsized6.rs:40:25
|
LL | fn g2<X: ?Sized + T>(x: X) {}
| - ^ doesn't have a size known at compile-time
| |
| this type parameter needs to be `Sized`
|
= help: unsized fn params are gated as an unstable feature
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - fn g2<X: ?Sized + T>(x: X) {}
LL + fn g2<X: T>(x: X) {}
|
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn g2<X: ?Sized + T>(x: &X) {}
| +
error: aborting due to 13 previous errors
For more information about this error, try `rustc --explain E0277`.
|
