diff options
Diffstat (limited to 'tests/ui/const-generics')
64 files changed, 453 insertions, 140 deletions
diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr index de5704ee4..48910b82a 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr @@ -11,6 +11,10 @@ note: required by a bound in `check` | LL | fn check(_: impl std::marker::ConstParamTy) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` +help: use parentheses to call this function + | +LL | check(main()); + | ++ error[E0277]: `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` can't be used as a const parameter type --> $DIR/const_param_ty_bad.rs:8:11 @@ -25,6 +29,10 @@ note: required by a bound in `check` | LL | fn check(_: impl std::marker::ConstParamTy) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` +help: use parentheses to call this closure + | +LL | check(|| {}()); + | ++ error[E0277]: `fn()` can't be used as a const parameter type --> $DIR/const_param_ty_bad.rs:9:11 @@ -39,6 +47,10 @@ note: required by a bound in `check` | LL | fn check(_: impl std::marker::ConstParamTy) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` +help: use parentheses to call this function pointer + | +LL | check(main as fn()()); + | ++ error[E0277]: `&mut ()` can't be used as a const parameter type --> $DIR/const_param_ty_bad.rs:10:11 @@ -48,11 +60,17 @@ LL | check(&mut ()); | | | required by a bound introduced by this call | + = note: `ConstParamTy` is implemented for `&()`, but not for `&mut ()` note: required by a bound in `check` --> $DIR/const_param_ty_bad.rs:4:18 | LL | fn check(_: impl std::marker::ConstParamTy) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` +help: consider removing the leading `&`-reference + | +LL - check(&mut ()); +LL + check(()); + | error[E0277]: `*mut ()` can't be used as a const parameter type --> $DIR/const_param_ty_bad.rs:11:11 @@ -62,6 +80,7 @@ LL | check(&mut () as *mut ()); | | | required by a bound introduced by this call | + = help: the trait `ConstParamTy` is implemented for `()` note: required by a bound in `check` --> $DIR/const_param_ty_bad.rs:4:18 | @@ -76,6 +95,7 @@ LL | check(&() as *const ()); | | | required by a bound introduced by this call | + = help: the trait `ConstParamTy` is implemented for `()` note: required by a bound in `check` --> $DIR/const_param_ty_bad.rs:4:18 | diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs index 87ae83dd9..100ab332a 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs @@ -49,5 +49,7 @@ fn main() { check::<D<u8>>(); check::<D<[&[bool]; 8]>>(); - // FIXME: test tuples + check::<()>(); + check::<(i32,)>(); + check::<(D<u8>, D<i32>)>(); } diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs index 37986de48..08f7c5cb5 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs @@ -9,9 +9,11 @@ struct CantParam(ImplementsConstParamTy); impl std::marker::ConstParamTy for CantParam {} //~^ error: the type `CantParam` does not `#[derive(Eq)]` +//~| error: the type `CantParam` does not `#[derive(PartialEq)]` #[derive(std::marker::ConstParamTy)] //~^ error: the type `CantParamDerive` does not `#[derive(Eq)]` +//~| error: the type `CantParamDerive` does not `#[derive(PartialEq)]` struct CantParamDerive(ImplementsConstParamTy); fn check<T: std::marker::ConstParamTy>() {} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr index 52701d559..43c5b96dc 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr @@ -1,3 +1,12 @@ +error[E0277]: the type `CantParam` does not `#[derive(PartialEq)]` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:10:36 + | +LL | impl std::marker::ConstParamTy for CantParam {} + | ^^^^^^^^^ the trait `StructuralPartialEq` is not implemented for `CantParam` + | +note: required by a bound in `ConstParamTy` + --> $SRC_DIR/core/src/marker.rs:LL:COL + error[E0277]: the type `CantParam` does not `#[derive(Eq)]` --> $DIR/const_param_ty_impl_no_structural_eq.rs:10:36 | @@ -7,8 +16,18 @@ LL | impl std::marker::ConstParamTy for CantParam {} note: required by a bound in `ConstParamTy` --> $SRC_DIR/core/src/marker.rs:LL:COL +error[E0277]: the type `CantParamDerive` does not `#[derive(PartialEq)]` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:14:10 + | +LL | #[derive(std::marker::ConstParamTy)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `StructuralPartialEq` is not implemented for `CantParamDerive` + | +note: required by a bound in `ConstParamTy` + --> $SRC_DIR/core/src/marker.rs:LL:COL + = note: this error originates in the derive macro `std::marker::ConstParamTy` (in Nightly builds, run with -Z macro-backtrace for more info) + error[E0277]: the type `CantParamDerive` does not `#[derive(Eq)]` - --> $DIR/const_param_ty_impl_no_structural_eq.rs:13:10 + --> $DIR/const_param_ty_impl_no_structural_eq.rs:14:10 | LL | #[derive(std::marker::ConstParamTy)] | ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `StructuralEq` is not implemented for `CantParamDerive` @@ -17,6 +36,6 @@ note: required by a bound in `ConstParamTy` --> $SRC_DIR/core/src/marker.rs:LL:COL = note: this error originates in the derive macro `std::marker::ConstParamTy` (in Nightly builds, run with -Z macro-backtrace for more info) -error: aborting due to 2 previous errors +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs index d70377a20..c04e96c56 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs @@ -14,6 +14,7 @@ impl Eq for Union {} impl std::marker::StructuralEq for Union {} impl std::marker::ConstParamTy for Union {} +//~^ ERROR the type `Union` does not `#[derive(PartialEq)]` #[derive(std::marker::ConstParamTy)] //~^ ERROR this trait cannot be derived for unions diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr index 293703046..985b933c4 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr @@ -1,8 +1,18 @@ error: this trait cannot be derived for unions - --> $DIR/const_param_ty_impl_union.rs:18:10 + --> $DIR/const_param_ty_impl_union.rs:19:10 | LL | #[derive(std::marker::ConstParamTy)] | ^^^^^^^^^^^^^^^^^^^^^^^^^ -error: aborting due to previous error +error[E0277]: the type `Union` does not `#[derive(PartialEq)]` + --> $DIR/const_param_ty_impl_union.rs:16:36 + | +LL | impl std::marker::ConstParamTy for Union {} + | ^^^^^ the trait `StructuralPartialEq` is not implemented for `Union` + | +note: required by a bound in `ConstParamTy` + --> $SRC_DIR/core/src/marker.rs:LL:COL + +error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/const-argument-if-length.full.stderr b/tests/ui/const-generics/const-argument-if-length.full.stderr index 2ceba59cf..7997026df 100644 --- a/tests/ui/const-generics/const-argument-if-length.full.stderr +++ b/tests/ui/const-generics/const-argument-if-length.full.stderr @@ -2,7 +2,7 @@ error[E0277]: the size for values of type `T` cannot be known at compilation tim --> $DIR/const-argument-if-length.rs:15:12 | LL | pub struct AtLeastByte<T: ?Sized> { - | - this type parameter needs to be `std::marker::Sized` + | - this type parameter needs to be `Sized` LL | value: T, | ^ doesn't have a size known at compile-time | diff --git a/tests/ui/const-generics/const-argument-if-length.min.stderr b/tests/ui/const-generics/const-argument-if-length.min.stderr index f85e60f63..3ba9ffebd 100644 --- a/tests/ui/const-generics/const-argument-if-length.min.stderr +++ b/tests/ui/const-generics/const-argument-if-length.min.stderr @@ -11,7 +11,7 @@ error[E0277]: the size for values of type `T` cannot be known at compilation tim --> $DIR/const-argument-if-length.rs:15:12 | LL | pub struct AtLeastByte<T: ?Sized> { - | - this type parameter needs to be `std::marker::Sized` + | - this type parameter needs to be `Sized` LL | value: T, | ^ doesn't have a size known at compile-time | diff --git a/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr b/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr index 938fb08b7..e508890dd 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr @@ -6,16 +6,6 @@ LL | pub struct Dependent<T, const X: T>([(); X]); | = note: type parameters may not be used in the type of const parameters -error[E0392]: parameter `T` is never used - --> $DIR/const-param-type-depends-on-type-param.rs:11:22 - | -LL | pub struct Dependent<T, const X: T>([(); X]); - | ^ unused parameter - | - = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData` - = help: if you intended `T` to be a const parameter, use `const T: usize` instead - -error: aborting due to 2 previous errors +error: aborting due to previous error -Some errors have detailed explanations: E0392, E0770. -For more information about an error, try `rustc --explain E0392`. +For more information about this error, try `rustc --explain E0770`. diff --git a/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr b/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr index 938fb08b7..e508890dd 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr @@ -6,16 +6,6 @@ LL | pub struct Dependent<T, const X: T>([(); X]); | = note: type parameters may not be used in the type of const parameters -error[E0392]: parameter `T` is never used - --> $DIR/const-param-type-depends-on-type-param.rs:11:22 - | -LL | pub struct Dependent<T, const X: T>([(); X]); - | ^ unused parameter - | - = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData` - = help: if you intended `T` to be a const parameter, use `const T: usize` instead - -error: aborting due to 2 previous errors +error: aborting due to previous error -Some errors have detailed explanations: E0392, E0770. -For more information about an error, try `rustc --explain E0392`. +For more information about this error, try `rustc --explain E0770`. diff --git a/tests/ui/const-generics/const-param-type-depends-on-type-param.rs b/tests/ui/const-generics/const-param-type-depends-on-type-param.rs index 71d91fd7e..fc3aa9cbc 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-type-param.rs +++ b/tests/ui/const-generics/const-param-type-depends-on-type-param.rs @@ -10,6 +10,5 @@ pub struct Dependent<T, const X: T>([(); X]); //~^ ERROR: the type of const parameters must not depend on other generic parameters -//~| ERROR: parameter `T` is never used fn main() {} diff --git a/tests/ui/const-generics/const-param-with-additional-obligations.rs b/tests/ui/const-generics/const-param-with-additional-obligations.rs new file mode 100644 index 000000000..f53cf85cd --- /dev/null +++ b/tests/ui/const-generics/const-param-with-additional-obligations.rs @@ -0,0 +1,17 @@ +#![feature(adt_const_params)] +#![allow(incomplete_features)] + +use std::marker::ConstParamTy; + +#[derive(Eq, PartialEq)] +struct Foo<T>(T); + +trait Other {} + +impl<T> ConstParamTy for Foo<T> where T: Other + ConstParamTy {} + +fn foo<const N: Foo<u8>>() {} +//~^ ERROR `Foo<u8>` must implement `ConstParamTy` to be used as the type of a const generic parameter +//~| NOTE `u8` must implement `Other`, but it does not + +fn main() {} diff --git a/tests/ui/const-generics/const-param-with-additional-obligations.stderr b/tests/ui/const-generics/const-param-with-additional-obligations.stderr new file mode 100644 index 000000000..f7ec4d574 --- /dev/null +++ b/tests/ui/const-generics/const-param-with-additional-obligations.stderr @@ -0,0 +1,11 @@ +error[E0741]: `Foo<u8>` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-param-with-additional-obligations.rs:13:17 + | +LL | fn foo<const N: Foo<u8>>() {} + | ^^^^^^^ + | + = note: `u8` must implement `Other`, but it does not + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0741`. diff --git a/tests/ui/const-generics/defaults/default-param-wf-concrete.stderr b/tests/ui/const-generics/defaults/default-param-wf-concrete.next.stderr index e8ebddade..4259ce2b6 100644 --- a/tests/ui/const-generics/defaults/default-param-wf-concrete.stderr +++ b/tests/ui/const-generics/defaults/default-param-wf-concrete.next.stderr @@ -1,5 +1,5 @@ error[E0080]: evaluation of constant value failed - --> $DIR/default-param-wf-concrete.rs:1:28 + --> $DIR/default-param-wf-concrete.rs:4:28 | LL | struct Foo<const N: u8 = { 255 + 1 }>; | ^^^^^^^ attempt to compute `u8::MAX + 1_u8`, which would overflow diff --git a/tests/ui/const-generics/defaults/default-param-wf-concrete.old.stderr b/tests/ui/const-generics/defaults/default-param-wf-concrete.old.stderr new file mode 100644 index 000000000..4259ce2b6 --- /dev/null +++ b/tests/ui/const-generics/defaults/default-param-wf-concrete.old.stderr @@ -0,0 +1,9 @@ +error[E0080]: evaluation of constant value failed + --> $DIR/default-param-wf-concrete.rs:4:28 + | +LL | struct Foo<const N: u8 = { 255 + 1 }>; + | ^^^^^^^ attempt to compute `u8::MAX + 1_u8`, which would overflow + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/const-generics/defaults/default-param-wf-concrete.rs b/tests/ui/const-generics/defaults/default-param-wf-concrete.rs index 41a52c7eb..09a00dd8e 100644 --- a/tests/ui/const-generics/defaults/default-param-wf-concrete.rs +++ b/tests/ui/const-generics/defaults/default-param-wf-concrete.rs @@ -1,3 +1,6 @@ +// revisions: old next +//[next] compile-flags: -Ztrait-solver=next + struct Foo<const N: u8 = { 255 + 1 }>; //~^ ERROR evaluation of constant value failed fn main() {} diff --git a/tests/ui/const-generics/exhaustive-value.stderr b/tests/ui/const-generics/exhaustive-value.stderr index 76a83ba67..4a26e0977 100644 --- a/tests/ui/const-generics/exhaustive-value.stderr +++ b/tests/ui/const-generics/exhaustive-value.stderr @@ -6,13 +6,13 @@ LL | <() as Foo<N>>::test() | = help: the following other types implement trait `Foo<N>`: <() as Foo<0>> - <() as Foo<100>> - <() as Foo<101>> - <() as Foo<102>> - <() as Foo<103>> - <() as Foo<104>> - <() as Foo<105>> - <() as Foo<106>> + <() as Foo<1>> + <() as Foo<2>> + <() as Foo<3>> + <() as Foo<4>> + <() as Foo<5>> + <() as Foo<6>> + <() as Foo<7>> and 248 others error: aborting due to previous error diff --git a/tests/ui/const-generics/float-generic.adt_const_params.stderr b/tests/ui/const-generics/float-generic.adt_const_params.stderr index fef5ef0d1..6fe539047 100644 --- a/tests/ui/const-generics/float-generic.adt_const_params.stderr +++ b/tests/ui/const-generics/float-generic.adt_const_params.stderr @@ -3,8 +3,6 @@ error[E0741]: `f32` is forbidden as the type of a const generic parameter | LL | fn foo<const F: f32>() {} | ^^^ - | - = note: floats do not derive `Eq` or `Ord`, which are required for const parameters error: aborting due to previous error diff --git a/tests/ui/const-generics/forbid-non-structural_match-types.rs b/tests/ui/const-generics/forbid-non-structural_match-types.rs index 6ae9d5cfb..4fec2a9f3 100644 --- a/tests/ui/const-generics/forbid-non-structural_match-types.rs +++ b/tests/ui/const-generics/forbid-non-structural_match-types.rs @@ -1,13 +1,15 @@ #![feature(adt_const_params)] #![allow(incomplete_features)] -#[derive(PartialEq, Eq)] +use std::marker::ConstParamTy; + +#[derive(PartialEq, Eq, ConstParamTy)] struct A; struct B<const X: A>; // ok struct C; -struct D<const X: C>; //~ ERROR `C` must be annotated with `#[derive(PartialEq, Eq)]` +struct D<const X: C>; //~ ERROR `C` must implement `ConstParamTy` to be used as the type of a const generic parameter fn main() {} diff --git a/tests/ui/const-generics/forbid-non-structural_match-types.stderr b/tests/ui/const-generics/forbid-non-structural_match-types.stderr index 81b9bdfbd..0efb9e9d3 100644 --- a/tests/ui/const-generics/forbid-non-structural_match-types.stderr +++ b/tests/ui/const-generics/forbid-non-structural_match-types.stderr @@ -1,8 +1,14 @@ -error[E0741]: `C` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter - --> $DIR/forbid-non-structural_match-types.rs:11:19 +error[E0741]: `C` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/forbid-non-structural_match-types.rs:13:19 | LL | struct D<const X: C>; - | ^ `C` doesn't derive both `PartialEq` and `Eq` + | ^ + | +help: add `#[derive(ConstParamTy, PartialEq, Eq)]` to the struct + | +LL + #[derive(ConstParamTy, PartialEq, Eq)] +LL | struct C; + | error: aborting due to previous error diff --git a/tests/ui/const-generics/generic_arg_infer/in-signature.rs b/tests/ui/const-generics/generic_arg_infer/in-signature.rs index 1f60b2242..cd852a269 100644 --- a/tests/ui/const-generics/generic_arg_infer/in-signature.rs +++ b/tests/ui/const-generics/generic_arg_infer/in-signature.rs @@ -33,15 +33,15 @@ static TY_STATIC_MIXED: Bar<_, _> = Bar::<i32, 3>(0); //~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables trait ArrAssocConst { const ARR: [u8; _]; - //~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants + //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants } trait TyAssocConst { const ARR: Bar<i32, _>; - //~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants + //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants } trait TyAssocConstMixed { const ARR: Bar<_, _>; - //~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants + //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants } trait AssocTy { diff --git a/tests/ui/const-generics/generic_arg_infer/in-signature.stderr b/tests/ui/const-generics/generic_arg_infer/in-signature.stderr index 52d1b29f9..b32018a6a 100644 --- a/tests/ui/const-generics/generic_arg_infer/in-signature.stderr +++ b/tests/ui/const-generics/generic_arg_infer/in-signature.stderr @@ -74,19 +74,19 @@ LL | static TY_STATIC_MIXED: Bar<_, _> = Bar::<i32, 3>(0); | not allowed in type signatures | help: replace with the correct type: `Bar<i32, 3>` -error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants +error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated constants --> $DIR/in-signature.rs:35:21 | LL | const ARR: [u8; _]; | ^ not allowed in type signatures -error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants +error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated constants --> $DIR/in-signature.rs:39:25 | LL | const ARR: Bar<i32, _>; | ^ not allowed in type signatures -error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants +error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated constants --> $DIR/in-signature.rs:43:20 | LL | const ARR: Bar<_, _>; diff --git a/tests/ui/const-generics/generic_arg_infer/issue-91614.stderr b/tests/ui/const-generics/generic_arg_infer/issue-91614.stderr index 13ea4a295..0096d4ee2 100644 --- a/tests/ui/const-generics/generic_arg_infer/issue-91614.stderr +++ b/tests/ui/const-generics/generic_arg_infer/issue-91614.stderr @@ -6,11 +6,11 @@ LL | let y = Mask::<_, _>::splat(false); | = note: cannot satisfy `_: MaskElement` = help: the following types implement trait `MaskElement`: + isize + i8 i16 i32 i64 - i8 - isize note: required by a bound in `Mask::<T, LANES>::splat` --> $SRC_DIR/core/src/../../portable-simd/crates/core_simd/src/masks.rs:LL:COL help: consider giving `y` an explicit type, where the type for type parameter `T` is specified diff --git a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr index 1d10dfdf1..c478718b4 100644 --- a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr +++ b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr @@ -7,7 +7,7 @@ LL | struct ArithArrayLen<const N: usize>([u32; 0 + N]); = help: try adding a `where` bound using this expression: `where [(); 0 + N]:` error: overly complex generic constant - --> $DIR/array-size-in-generic-struct-param.rs:19:15 + --> $DIR/array-size-in-generic-struct-param.rs:23:15 | LL | arr: [u8; CFG.arr_size], | ^^^^^^^^^^^^ field access is not supported in generic constants diff --git a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.min.stderr b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.min.stderr index 18e9135d0..956e9c9c9 100644 --- a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.min.stderr +++ b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.min.stderr @@ -8,7 +8,7 @@ LL | struct ArithArrayLen<const N: usize>([u32; 0 + N]); = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/array-size-in-generic-struct-param.rs:19:15 + --> $DIR/array-size-in-generic-struct-param.rs:23:15 | LL | arr: [u8; CFG.arr_size], | ^^^ cannot perform const operation using `CFG` @@ -17,7 +17,7 @@ LL | arr: [u8; CFG.arr_size], = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: `Config` is forbidden as the type of a const generic parameter - --> $DIR/array-size-in-generic-struct-param.rs:17:21 + --> $DIR/array-size-in-generic-struct-param.rs:21:21 | LL | struct B<const CFG: Config> { | ^^^^^^ diff --git a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.rs b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.rs index 7d3fe413c..33ca6dcb3 100644 --- a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.rs +++ b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.rs @@ -9,7 +9,11 @@ struct ArithArrayLen<const N: usize>([u32; 0 + N]); //[full]~^ ERROR unconstrained generic constant //[min]~^^ ERROR generic parameters may not be used in const operations +#[cfg(full)] +use std::marker::ConstParamTy; + #[derive(PartialEq, Eq)] +#[cfg_attr(full, derive(ConstParamTy))] struct Config { arr_size: usize, } diff --git a/tests/ui/const-generics/generic_const_exprs/eval-privacy.rs b/tests/ui/const-generics/generic_const_exprs/eval-privacy.rs index 8023b998a..e5464a425 100644 --- a/tests/ui/const-generics/generic_const_exprs/eval-privacy.rs +++ b/tests/ui/const-generics/generic_const_exprs/eval-privacy.rs @@ -1,6 +1,12 @@ #![crate_type = "lib"] #![feature(generic_const_exprs)] +#![feature(type_privacy_lints)] #![allow(incomplete_features)] +#![warn(private_interfaces)] + +// In this test both old and new private-in-public diagnostic were emitted. +// Old diagnostic will be deleted soon. +// See https://rust-lang.github.io/rfcs/2145-type-privacy.html. pub struct Const<const U: u8>; @@ -15,6 +21,7 @@ where { type AssocTy = Const<{ my_const_fn(U) }>; //~^ ERROR private type + //~| WARNING type `fn(u8) -> u8 {my_const_fn}` is more private than the item `<Const<U> as Trait>::AssocTy` fn assoc_fn() -> Self::AssocTy { Const } diff --git a/tests/ui/const-generics/generic_const_exprs/eval-privacy.stderr b/tests/ui/const-generics/generic_const_exprs/eval-privacy.stderr index 2d9de8805..16fae6b5c 100644 --- a/tests/ui/const-generics/generic_const_exprs/eval-privacy.stderr +++ b/tests/ui/const-generics/generic_const_exprs/eval-privacy.stderr @@ -1,5 +1,5 @@ error[E0446]: private type `fn(u8) -> u8 {my_const_fn}` in public interface - --> $DIR/eval-privacy.rs:16:5 + --> $DIR/eval-privacy.rs:22:5 | LL | type AssocTy = Const<{ my_const_fn(U) }>; | ^^^^^^^^^^^^ can't leak private type @@ -7,6 +7,23 @@ LL | type AssocTy = Const<{ my_const_fn(U) }>; LL | const fn my_const_fn(val: u8) -> u8 { | ----------------------------------- `fn(u8) -> u8 {my_const_fn}` declared as private -error: aborting due to previous error +warning: type `fn(u8) -> u8 {my_const_fn}` is more private than the item `<Const<U> as Trait>::AssocTy` + --> $DIR/eval-privacy.rs:22:5 + | +LL | type AssocTy = Const<{ my_const_fn(U) }>; + | ^^^^^^^^^^^^ associated type `<Const<U> as Trait>::AssocTy` is reachable at visibility `pub` + | +note: but type `fn(u8) -> u8 {my_const_fn}` is only usable at visibility `pub(crate)` + --> $DIR/eval-privacy.rs:30:1 + | +LL | const fn my_const_fn(val: u8) -> u8 { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +note: the lint level is defined here + --> $DIR/eval-privacy.rs:5:9 + | +LL | #![warn(private_interfaces)] + | ^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error; 1 warning emitted For more information about this error, try `rustc --explain E0446`. diff --git a/tests/ui/const-generics/generic_const_exprs/inline-const-in-const-generic-defaults.rs b/tests/ui/const-generics/generic_const_exprs/inline-const-in-const-generic-defaults.rs new file mode 100644 index 000000000..d81cba627 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/inline-const-in-const-generic-defaults.rs @@ -0,0 +1,9 @@ +// check-pass + +#![feature(generic_const_exprs)] +#![feature(inline_const)] +#![allow(incomplete_features)] + +pub struct ConstDefaultUnstable<const N: usize = { const { 3 } }>; + +pub fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/issue-109141.rs b/tests/ui/const-generics/generic_const_exprs/issue-109141.rs new file mode 100644 index 000000000..148c3bda8 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/issue-109141.rs @@ -0,0 +1,13 @@ +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +impl EntriesBuffer { + fn a(&self) -> impl Iterator { + self.0.iter_mut() //~ ERROR: cannot borrow `*self.0` as mutable, as it is behind a `&` reference + } +} + +struct EntriesBuffer(Box<[[u8; HashesEntryLEN]; 5]>); +//~^ ERROR: cannot find value `HashesEntryLEN` in this scope + +fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/issue-109141.stderr b/tests/ui/const-generics/generic_const_exprs/issue-109141.stderr new file mode 100644 index 000000000..f61edd60e --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/issue-109141.stderr @@ -0,0 +1,26 @@ +error[E0425]: cannot find value `HashesEntryLEN` in this scope + --> $DIR/issue-109141.rs:10:32 + | +LL | struct EntriesBuffer(Box<[[u8; HashesEntryLEN]; 5]>); + | ^^^^^^^^^^^^^^ not found in this scope + | +help: you might be missing a const parameter + | +LL | struct EntriesBuffer<const HashesEntryLEN: /* Type */>(Box<[[u8; HashesEntryLEN]; 5]>); + | ++++++++++++++++++++++++++++++++++ + +error[E0596]: cannot borrow `*self.0` as mutable, as it is behind a `&` reference + --> $DIR/issue-109141.rs:6:9 + | +LL | self.0.iter_mut() + | ^^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable + | +help: consider changing this to be a mutable reference + | +LL | fn a(&mut self) -> impl Iterator { + | ~~~~~~~~~ + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0425, E0596. +For more information about an error, try `rustc --explain E0425`. diff --git a/tests/ui/const-generics/generic_const_exprs/issue-80742.stderr b/tests/ui/const-generics/generic_const_exprs/issue-80742.stderr index 6aa8ee13b..dc3a400cb 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-80742.stderr +++ b/tests/ui/const-generics/generic_const_exprs/issue-80742.stderr @@ -1,4 +1,4 @@ -error[E0080]: evaluation of `Inline::<dyn std::fmt::Debug>::{constant#0}` failed +error[E0080]: evaluation of `Inline::<dyn Debug>::{constant#0}` failed --> $SRC_DIR/core/src/mem/mod.rs:LL:COL | = note: size_of called on unsized type `dyn Debug` @@ -35,7 +35,7 @@ help: consider relaxing the type parameter's implicit `Sized` bound LL | impl<T: ?Sized> Inline<T> | ++++++++ -error[E0080]: evaluation of `Inline::<dyn std::fmt::Debug>::{constant#0}` failed +error[E0080]: evaluation of `Inline::<dyn Debug>::{constant#0}` failed --> $SRC_DIR/core/src/mem/mod.rs:LL:COL | = note: size_of called on unsized type `dyn Debug` diff --git a/tests/ui/const-generics/generic_const_exprs/issue-86710.rs b/tests/ui/const-generics/generic_const_exprs/issue-86710.rs index bdd8a21b3..281b12458 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-86710.rs +++ b/tests/ui/const-generics/generic_const_exprs/issue-86710.rs @@ -7,7 +7,7 @@ use std::marker::PhantomData; fn main() { let x = FooImpl::<BarImpl<1>> { phantom: PhantomData }; - let _ = x.foo::<BarImpl<1>>(); + x.foo::<BarImpl<1>>(); } trait Foo<T> diff --git a/tests/ui/const-generics/generic_const_exprs/issue-96699.rs b/tests/ui/const-generics/generic_const_exprs/issue-96699.rs new file mode 100644 index 000000000..83f329d2a --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/issue-96699.rs @@ -0,0 +1,87 @@ +// check-pass + +#![allow(dead_code, incomplete_features)] +#![feature(generic_const_exprs)] + +const fn min(a: usize, b: usize) -> usize { + if a < b { + a + } else { + b + } +} + +trait Trait1<Inner1> +where + Self: Sized, +{ + fn crash_here() + where + Inner1: Default, + { + Inner1::default(); + } +} + +struct Struct1<T>(T); +impl<T> Trait1<T> for Struct1<T> {} + +trait Trait2<Inner2> +where + Self: Sized, +{ + type Assoc: Trait1<Inner2>; + + fn call_crash() + where + Inner2: Default, + { + // if Inner2 implements Default, we can call crash_here. + Self::Assoc::crash_here(); + } +} + +struct Struct2<const SIZE1: usize, const SIZE2: usize> {} +/* +where + [(); min(SIZE1, SIZE2)]:, +{ + elem: [i32; min(SIZE1, SIZE2)], +} +*/ + +impl<const SIZE1: usize, const SIZE2: usize> Trait2<[i32; min(SIZE1, SIZE2)]> + for Struct2<SIZE1, SIZE2> +{ + type Assoc = Struct1<[i32; min(SIZE1, SIZE2)]>; + // dose Struct1<[i32; min(SIZE1, SIZE2)]> implement Default? +} + +fn main() { + pattern2(); + + print_fully_name(<Struct2<1, 2> as Trait2<[i32; min(1, 2)]>>::Assoc::crash_here); + // <compiler_bug2::Struct1<[i32; 1]> as compiler_bug2::Trait1<[i32; 1]>>::crash_here +} + +fn pattern1() { + // no crash + <Struct2<1, 2> as Trait2<[i32; min(1, 2)]>>::Assoc::crash_here(); + <Struct2<1, 2> as Trait2<[i32; min(1, 2)]>>::call_crash(); +} + +fn pattern2() { + // crash + <Struct2<1, 2> as Trait2<[i32; min(1, 2)]>>::call_crash(); + + // undefined reference to `compiler_bug2::Trait1::crash_here' +} + +fn pattern3() { + // no crash + <Struct2<1, 2> as Trait2<[i32; min(1, 2)]>>::Assoc::crash_here(); +} + +fn print_fully_name<T>(_: T) { + let _ = std::any::type_name::<T>(); +} diff --git a/tests/ui/const-generics/invalid-enum.rs b/tests/ui/const-generics/invalid-enum.rs index cb6d05349..fcfad300c 100644 --- a/tests/ui/const-generics/invalid-enum.rs +++ b/tests/ui/const-generics/invalid-enum.rs @@ -1,7 +1,9 @@ #![feature(adt_const_params)] #![allow(incomplete_features)] -#[derive(PartialEq, Eq)] +use std::marker::ConstParamTy; + +#[derive(PartialEq, Eq, ConstParamTy)] enum CompileFlag { A, B, diff --git a/tests/ui/const-generics/invalid-enum.stderr b/tests/ui/const-generics/invalid-enum.stderr index 0d3643f6f..7e8a632b3 100644 --- a/tests/ui/const-generics/invalid-enum.stderr +++ b/tests/ui/const-generics/invalid-enum.stderr @@ -1,5 +1,5 @@ error[E0573]: expected type, found variant `CompileFlag::A` - --> $DIR/invalid-enum.rs:21:12 + --> $DIR/invalid-enum.rs:23:12 | LL | test_1::<CompileFlag::A>(); | ^^^^^^^^^^^^^^ @@ -8,7 +8,7 @@ LL | test_1::<CompileFlag::A>(); | help: try using the variant's enum: `CompileFlag` error[E0573]: expected type, found variant `CompileFlag::A` - --> $DIR/invalid-enum.rs:25:15 + --> $DIR/invalid-enum.rs:27:15 | LL | test_2::<_, CompileFlag::A>(0); | ^^^^^^^^^^^^^^ @@ -17,7 +17,7 @@ LL | test_2::<_, CompileFlag::A>(0); | help: try using the variant's enum: `CompileFlag` error[E0573]: expected type, found variant `CompileFlag::A` - --> $DIR/invalid-enum.rs:29:18 + --> $DIR/invalid-enum.rs:31:18 | LL | let _: Example<CompileFlag::A, _> = Example { x: 0 }; | ^^^^^^^^^^^^^^ @@ -26,7 +26,7 @@ LL | let _: Example<CompileFlag::A, _> = Example { x: 0 }; | help: try using the variant's enum: `CompileFlag` error[E0747]: unresolved item provided when a constant was expected - --> $DIR/invalid-enum.rs:29:18 + --> $DIR/invalid-enum.rs:31:18 | LL | let _: Example<CompileFlag::A, _> = Example { x: 0 }; | ^^^^^^^^^^^^^^ @@ -37,7 +37,7 @@ LL | let _: Example<{ CompileFlag::A }, _> = Example { x: 0 }; | + + error[E0747]: type provided when a constant was expected - --> $DIR/invalid-enum.rs:33:18 + --> $DIR/invalid-enum.rs:35:18 | LL | let _: Example<Example::ASSOC_FLAG, _> = Example { x: 0 }; | ^^^^^^^^^^^^^^^^^^^ @@ -48,7 +48,7 @@ LL | let _: Example<{ Example::ASSOC_FLAG }, _> = Example { x: 0 }; | + + error[E0747]: unresolved item provided when a constant was expected - --> $DIR/invalid-enum.rs:21:12 + --> $DIR/invalid-enum.rs:23:12 | LL | test_1::<CompileFlag::A>(); | ^^^^^^^^^^^^^^ @@ -59,7 +59,7 @@ LL | test_1::<{ CompileFlag::A }>(); | + + error[E0747]: unresolved item provided when a constant was expected - --> $DIR/invalid-enum.rs:25:15 + --> $DIR/invalid-enum.rs:27:15 | LL | test_2::<_, CompileFlag::A>(0); | ^^^^^^^^^^^^^^ diff --git a/tests/ui/const-generics/issue-112505-overflow.rs b/tests/ui/const-generics/issue-112505-overflow.rs new file mode 100644 index 000000000..0dd7776d5 --- /dev/null +++ b/tests/ui/const-generics/issue-112505-overflow.rs @@ -0,0 +1,7 @@ +#![feature(transmute_generic_consts)] + +fn overflow(v: [[[u32; 8888888]; 9999999]; 777777777]) -> [[[u32; 9999999]; 777777777]; 239] { + unsafe { std::mem::transmute(v) } //~ ERROR cannot transmute between types of different sizes +} + +fn main() { } diff --git a/tests/ui/const-generics/issue-112505-overflow.stderr b/tests/ui/const-generics/issue-112505-overflow.stderr new file mode 100644 index 000000000..bd8a4feef --- /dev/null +++ b/tests/ui/const-generics/issue-112505-overflow.stderr @@ -0,0 +1,12 @@ +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/issue-112505-overflow.rs:4:14 + | +LL | unsafe { std::mem::transmute(v) } + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `[[[u32; 8888888]; 9999999]; 777777777]` (values of the type `[[u32; 8888888]; 9999999]` are too big for the current architecture) + = note: target type: `[[[u32; 9999999]; 777777777]; 239]` (values of the type `[[u32; 9999999]; 777777777]` are too big for the current architecture) + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0512`. diff --git a/tests/ui/const-generics/issue-66451.rs b/tests/ui/const-generics/issue-66451.rs index 3335f7d59..c8d5515e9 100644 --- a/tests/ui/const-generics/issue-66451.rs +++ b/tests/ui/const-generics/issue-66451.rs @@ -1,13 +1,15 @@ #![feature(adt_const_params)] #![allow(incomplete_features)] -#[derive(Debug, PartialEq, Eq)] +use std::marker::ConstParamTy; + +#[derive(Debug, PartialEq, Eq, ConstParamTy)] struct Foo { value: i32, nested: &'static Bar<i32>, } -#[derive(Debug, PartialEq, Eq)] +#[derive(Debug, PartialEq, Eq, ConstParamTy)] struct Bar<T>(T); struct Test<const F: Foo>; diff --git a/tests/ui/const-generics/issue-66451.stderr b/tests/ui/const-generics/issue-66451.stderr index e0cb0b661..946d51486 100644 --- a/tests/ui/const-generics/issue-66451.stderr +++ b/tests/ui/const-generics/issue-66451.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/issue-66451.rs:27:10 + --> $DIR/issue-66451.rs:29:10 | LL | let y: Test<{ | ____________- diff --git a/tests/ui/const-generics/issue-80471.rs b/tests/ui/const-generics/issue-80471.rs index d0af8a5ea..fa6f1fde4 100644 --- a/tests/ui/const-generics/issue-80471.rs +++ b/tests/ui/const-generics/issue-80471.rs @@ -8,6 +8,6 @@ enum Nat { } fn foo<const N: Nat>() {} -//~^ ERROR `Box<Nat>` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter +//~^ ERROR `Nat` must implement `ConstParamTy` to be used as the type of a const generic parameter fn main() {} diff --git a/tests/ui/const-generics/issue-80471.stderr b/tests/ui/const-generics/issue-80471.stderr index b89706710..3b7143de5 100644 --- a/tests/ui/const-generics/issue-80471.stderr +++ b/tests/ui/const-generics/issue-80471.stderr @@ -7,11 +7,17 @@ LL | #![feature(adt_const_params)] = note: see issue #95174 <https://github.com/rust-lang/rust/issues/95174> for more information = note: `#[warn(incomplete_features)]` on by default -error[E0741]: `Box<Nat>` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter +error[E0741]: `Nat` must implement `ConstParamTy` to be used as the type of a const generic parameter --> $DIR/issue-80471.rs:10:17 | LL | fn foo<const N: Nat>() {} | ^^^ + | +help: add `#[derive(ConstParamTy)]` to the struct + | +LL + #[derive(ConstParamTy)] +LL | enum Nat { + | error: aborting due to previous error; 1 warning emitted diff --git a/tests/ui/const-generics/issues/issue-63322-forbid-dyn.full.stderr b/tests/ui/const-generics/issues/issue-63322-forbid-dyn.full.stderr index 16fabd1e8..e2d8c5ca0 100644 --- a/tests/ui/const-generics/issues/issue-63322-forbid-dyn.full.stderr +++ b/tests/ui/const-generics/issues/issue-63322-forbid-dyn.full.stderr @@ -1,8 +1,10 @@ -error[E0741]: `(dyn A + 'static)` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter +error[E0741]: `&'static (dyn A + 'static)` can't be used as a const parameter type --> $DIR/issue-63322-forbid-dyn.rs:9:18 | LL | fn test<const T: &'static dyn A>() { | ^^^^^^^^^^^^^^ + | + = note: `(dyn A + 'static)` must implement `ConstParamTy`, but it does not error: aborting due to previous error diff --git a/tests/ui/const-generics/issues/issue-63322-forbid-dyn.rs b/tests/ui/const-generics/issues/issue-63322-forbid-dyn.rs index 116c3fcfb..8bc35ab3d 100644 --- a/tests/ui/const-generics/issues/issue-63322-forbid-dyn.rs +++ b/tests/ui/const-generics/issues/issue-63322-forbid-dyn.rs @@ -7,7 +7,7 @@ struct B; impl A for B {} fn test<const T: &'static dyn A>() { - //[full]~^ ERROR must be annotated with `#[derive(PartialEq, Eq)]` to be used + //[full]~^ ERROR `&'static (dyn A + 'static)` can't be used as a const parameter type //[min]~^^ ERROR `&'static (dyn A + 'static)` is forbidden unimplemented!() } diff --git a/tests/ui/const-generics/issues/issue-67185-2.stderr b/tests/ui/const-generics/issues/issue-67185-2.stderr index 032b0c410..a2e5b8053 100644 --- a/tests/ui/const-generics/issues/issue-67185-2.stderr +++ b/tests/ui/const-generics/issues/issue-67185-2.stderr @@ -5,8 +5,8 @@ LL | <u8 as Baz>::Quaks: Bar, | ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Bar` is not implemented for `[u16; 3]` | = help: the following other types implement trait `Bar`: - [[u16; 3]; 3] [u16; 4] + [[u16; 3]; 3] = help: see issue #48214 = help: add `#![feature(trivial_bounds)]` to the crate attributes to enable @@ -17,8 +17,8 @@ LL | [<u8 as Baz>::Quaks; 2]: Bar, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Bar` is not implemented for `[[u16; 3]; 2]` | = help: the following other types implement trait `Bar`: - [[u16; 3]; 3] [u16; 4] + [[u16; 3]; 3] = help: see issue #48214 = help: add `#![feature(trivial_bounds)]` to the crate attributes to enable @@ -29,8 +29,8 @@ LL | impl Foo for FooImpl {} | ^^^ the trait `Bar` is not implemented for `[u16; 3]` | = help: the following other types implement trait `Bar`: - [[u16; 3]; 3] [u16; 4] + [[u16; 3]; 3] note: required by a bound in `Foo` --> $DIR/issue-67185-2.rs:15:25 | @@ -47,8 +47,8 @@ LL | impl Foo for FooImpl {} | ^^^ the trait `Bar` is not implemented for `[[u16; 3]; 2]` | = help: the following other types implement trait `Bar`: - [[u16; 3]; 3] [u16; 4] + [[u16; 3]; 3] note: required by a bound in `Foo` --> $DIR/issue-67185-2.rs:14:30 | @@ -65,8 +65,8 @@ LL | fn f(_: impl Foo) {} | ^^^ the trait `Bar` is not implemented for `[[u16; 3]; 2]` | = help: the following other types implement trait `Bar`: - [[u16; 3]; 3] [u16; 4] + [[u16; 3]; 3] note: required by a bound in `Foo` --> $DIR/issue-67185-2.rs:14:30 | @@ -83,8 +83,8 @@ LL | fn f(_: impl Foo) {} | ^^^ the trait `Bar` is not implemented for `[u16; 3]` | = help: the following other types implement trait `Bar`: - [[u16; 3]; 3] [u16; 4] + [[u16; 3]; 3] note: required by a bound in `Foo` --> $DIR/issue-67185-2.rs:15:25 | diff --git a/tests/ui/const-generics/issues/issue-70273-assoc-fn.rs b/tests/ui/const-generics/issues/issue-70273-assoc-fn.rs index a76488249..f02ab355f 100644 --- a/tests/ui/const-generics/issues/issue-70273-assoc-fn.rs +++ b/tests/ui/const-generics/issues/issue-70273-assoc-fn.rs @@ -10,5 +10,5 @@ impl T<0usize> for S { } fn main() { - let _err = <S as T<0usize>>::f(); + <S as T<0usize>>::f(); } diff --git a/tests/ui/const-generics/issues/issue-71381.full.stderr b/tests/ui/const-generics/issues/issue-71381.full.stderr index 962eaf75b..b6460e001 100644 --- a/tests/ui/const-generics/issues/issue-71381.full.stderr +++ b/tests/ui/const-generics/issues/issue-71381.full.stderr @@ -14,19 +14,6 @@ LL | const FN: unsafe extern "C" fn(Args), | = note: type parameters may not be used in the type of const parameters -error[E0741]: using function pointers as const generic parameters is forbidden - --> $DIR/issue-71381.rs:14:61 - | -LL | pub fn call_me<Args: Sized, const IDX: usize, const FN: unsafe extern "C" fn(Args)>(&self) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error[E0741]: using function pointers as const generic parameters is forbidden - --> $DIR/issue-71381.rs:23:19 - | -LL | const FN: unsafe extern "C" fn(Args), - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 4 previous errors +error: aborting due to 2 previous errors -Some errors have detailed explanations: E0741, E0770. -For more information about an error, try `rustc --explain E0741`. +For more information about this error, try `rustc --explain E0770`. diff --git a/tests/ui/const-generics/issues/issue-71381.rs b/tests/ui/const-generics/issues/issue-71381.rs index 66f819dbe..8a878efb4 100644 --- a/tests/ui/const-generics/issues/issue-71381.rs +++ b/tests/ui/const-generics/issues/issue-71381.rs @@ -12,8 +12,8 @@ unsafe extern "C" fn pass(args: PassArg) { impl Test { pub fn call_me<Args: Sized, const IDX: usize, const FN: unsafe extern "C" fn(Args)>(&self) { - //~^ ERROR: using function pointers as const generic parameters is forbidden - //~| ERROR: the type of const parameters must not depend on other generic parameters + //[min]~^ ERROR: using function pointers as const generic parameters is forbidden + //~^^ ERROR: the type of const parameters must not depend on other generic parameters self.0 = Self::trampiline::<Args, IDX, FN> as _ } @@ -21,8 +21,8 @@ impl Test { Args: Sized, const IDX: usize, const FN: unsafe extern "C" fn(Args), - //~^ ERROR: using function pointers as const generic parameters is forbidden - //~| ERROR: the type of const parameters must not depend on other generic parameters + //[min]~^ ERROR: using function pointers as const generic parameters is forbidden + //~^^ ERROR: the type of const parameters must not depend on other generic parameters >( args: Args, ) { @@ -31,6 +31,6 @@ impl Test { } fn main() { - let x = Test(); + let x = Test(std::ptr::null()); x.call_me::<PassArg, 30, pass>() } diff --git a/tests/ui/const-generics/issues/issue-71611.full.stderr b/tests/ui/const-generics/issues/issue-71611.full.stderr index e109459f2..b55f410a0 100644 --- a/tests/ui/const-generics/issues/issue-71611.full.stderr +++ b/tests/ui/const-generics/issues/issue-71611.full.stderr @@ -6,13 +6,6 @@ LL | fn func<A, const F: fn(inner: A)>(outer: A) { | = note: type parameters may not be used in the type of const parameters -error[E0741]: using function pointers as const generic parameters is forbidden - --> $DIR/issue-71611.rs:5:21 - | -LL | fn func<A, const F: fn(inner: A)>(outer: A) { - | ^^^^^^^^^^^^ - -error: aborting due to 2 previous errors +error: aborting due to previous error -Some errors have detailed explanations: E0741, E0770. -For more information about an error, try `rustc --explain E0741`. +For more information about this error, try `rustc --explain E0770`. diff --git a/tests/ui/const-generics/issues/issue-71611.rs b/tests/ui/const-generics/issues/issue-71611.rs index fbb91ca18..c917f6681 100644 --- a/tests/ui/const-generics/issues/issue-71611.rs +++ b/tests/ui/const-generics/issues/issue-71611.rs @@ -3,8 +3,8 @@ #![cfg_attr(full, allow(incomplete_features))] fn func<A, const F: fn(inner: A)>(outer: A) { - //~^ ERROR: using function pointers as const generic parameters is forbidden - //~| ERROR: the type of const parameters must not depend on other generic parameters + //[min]~^ ERROR: using function pointers as const generic parameters is forbidden + //~^^ ERROR: the type of const parameters must not depend on other generic parameters F(outer); } diff --git a/tests/ui/const-generics/issues/issue-74255.min.stderr b/tests/ui/const-generics/issues/issue-74255.min.stderr index b462d8448..bbcf8682b 100644 --- a/tests/ui/const-generics/issues/issue-74255.min.stderr +++ b/tests/ui/const-generics/issues/issue-74255.min.stderr @@ -1,5 +1,5 @@ error: `IceEnum` is forbidden as the type of a const generic parameter - --> $DIR/issue-74255.rs:14:31 + --> $DIR/issue-74255.rs:18:31 | LL | fn ice_struct_fn<const I: IceEnum>() {} | ^^^^^^^ diff --git a/tests/ui/const-generics/issues/issue-74255.rs b/tests/ui/const-generics/issues/issue-74255.rs index 0e523926f..60b2fd37c 100644 --- a/tests/ui/const-generics/issues/issue-74255.rs +++ b/tests/ui/const-generics/issues/issue-74255.rs @@ -3,7 +3,11 @@ #![cfg_attr(full, feature(adt_const_params))] #![cfg_attr(full, allow(incomplete_features))] +#[cfg(full)] +use std::marker::ConstParamTy; + #[derive(PartialEq, Eq)] +#[cfg_attr(full, derive(ConstParamTy))] enum IceEnum { Variant } diff --git a/tests/ui/const-generics/issues/issue-74950.min.stderr b/tests/ui/const-generics/issues/issue-74950.min.stderr index 729ecc202..c37ee93d4 100644 --- a/tests/ui/const-generics/issues/issue-74950.min.stderr +++ b/tests/ui/const-generics/issues/issue-74950.min.stderr @@ -1,5 +1,5 @@ error: `Inner` is forbidden as the type of a const generic parameter - --> $DIR/issue-74950.rs:17:23 + --> $DIR/issue-74950.rs:20:23 | LL | struct Outer<const I: Inner>; | ^^^^^ @@ -8,7 +8,7 @@ LL | struct Outer<const I: Inner>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `Inner` is forbidden as the type of a const generic parameter - --> $DIR/issue-74950.rs:17:23 + --> $DIR/issue-74950.rs:20:23 | LL | struct Outer<const I: Inner>; | ^^^^^ @@ -17,7 +17,7 @@ LL | struct Outer<const I: Inner>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `Inner` is forbidden as the type of a const generic parameter - --> $DIR/issue-74950.rs:17:23 + --> $DIR/issue-74950.rs:20:23 | LL | struct Outer<const I: Inner>; | ^^^^^ @@ -26,7 +26,7 @@ LL | struct Outer<const I: Inner>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `Inner` is forbidden as the type of a const generic parameter - --> $DIR/issue-74950.rs:17:23 + --> $DIR/issue-74950.rs:20:23 | LL | struct Outer<const I: Inner>; | ^^^^^ @@ -35,7 +35,7 @@ LL | struct Outer<const I: Inner>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `Inner` is forbidden as the type of a const generic parameter - --> $DIR/issue-74950.rs:17:23 + --> $DIR/issue-74950.rs:20:23 | LL | struct Outer<const I: Inner>; | ^^^^^ diff --git a/tests/ui/const-generics/issues/issue-74950.rs b/tests/ui/const-generics/issues/issue-74950.rs index 3e1ca4735..43bb32265 100644 --- a/tests/ui/const-generics/issues/issue-74950.rs +++ b/tests/ui/const-generics/issues/issue-74950.rs @@ -3,8 +3,11 @@ #![cfg_attr(full, feature(adt_const_params))] #![cfg_attr(full, allow(incomplete_features))] +#[cfg(full)] +use std::marker::ConstParamTy; #[derive(PartialEq, Eq)] +#[cfg_attr(full, derive(ConstParamTy))] struct Inner; // Note: We emit the error 5 times if we don't deduplicate: diff --git a/tests/ui/const-generics/issues/issue-87076.rs b/tests/ui/const-generics/issues/issue-87076.rs index 8a567678b..a32c1f965 100644 --- a/tests/ui/const-generics/issues/issue-87076.rs +++ b/tests/ui/const-generics/issues/issue-87076.rs @@ -3,7 +3,9 @@ #![feature(adt_const_params)] #![allow(incomplete_features)] -#[derive(PartialEq, Eq)] +use std::marker::ConstParamTy; + +#[derive(PartialEq, Eq, ConstParamTy)] pub struct UnitDims { pub time: u8, pub length: u8, diff --git a/tests/ui/const-generics/issues/issue-97278.rs b/tests/ui/const-generics/issues/issue-97278.rs index da0a9776f..8e7a1fcd9 100644 --- a/tests/ui/const-generics/issues/issue-97278.rs +++ b/tests/ui/const-generics/issues/issue-97278.rs @@ -9,6 +9,6 @@ enum Bar { } fn test<const BAR: Bar>() {} -//~^ ERROR `Arc<i32>` must be annotated with `#[derive(PartialEq, Eq)]` +//~^ ERROR `Bar` must implement `ConstParamTy` to be used as the type of a const generic parameter fn main() {} diff --git a/tests/ui/const-generics/issues/issue-97278.stderr b/tests/ui/const-generics/issues/issue-97278.stderr index ff13cb505..31e92f840 100644 --- a/tests/ui/const-generics/issues/issue-97278.stderr +++ b/tests/ui/const-generics/issues/issue-97278.stderr @@ -1,8 +1,14 @@ -error[E0741]: `Arc<i32>` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter +error[E0741]: `Bar` must implement `ConstParamTy` to be used as the type of a const generic parameter --> $DIR/issue-97278.rs:11:20 | LL | fn test<const BAR: Bar>() {} | ^^^ + | +help: add `#[derive(ConstParamTy)]` to the struct + | +LL + #[derive(ConstParamTy)] +LL | enum Bar { + | error: aborting due to previous error diff --git a/tests/ui/const-generics/issues/issue-99641.rs b/tests/ui/const-generics/issues/issue-99641.rs index fae6d3fc4..dd075a6ad 100644 --- a/tests/ui/const-generics/issues/issue-99641.rs +++ b/tests/ui/const-generics/issues/issue-99641.rs @@ -3,10 +3,10 @@ fn main() { pub struct Color<const WHITE: (fn(),)>; - //~^ ERROR using function pointers + //~^ ERROR `(fn(),)` can't be used as a const parameter type impl<const WHITE: (fn(),)> Color<WHITE> { - //~^ ERROR using function pointers + //~^ ERROR `(fn(),)` can't be used as a const parameter type pub fn new() -> Self { Color::<WHITE> } diff --git a/tests/ui/const-generics/issues/issue-99641.stderr b/tests/ui/const-generics/issues/issue-99641.stderr index 349ebba08..800aec3ef 100644 --- a/tests/ui/const-generics/issues/issue-99641.stderr +++ b/tests/ui/const-generics/issues/issue-99641.stderr @@ -1,14 +1,18 @@ -error[E0741]: using function pointers as const generic parameters is forbidden +error[E0741]: `(fn(),)` can't be used as a const parameter type --> $DIR/issue-99641.rs:5:35 | LL | pub struct Color<const WHITE: (fn(),)>; | ^^^^^^^ + | + = note: `fn()` must implement `ConstParamTy`, but it does not -error[E0741]: using function pointers as const generic parameters is forbidden +error[E0741]: `(fn(),)` can't be used as a const parameter type --> $DIR/issue-99641.rs:8:23 | LL | impl<const WHITE: (fn(),)> Color<WHITE> { | ^^^^^^^ + | + = note: `fn()` must implement `ConstParamTy`, but it does not error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/overlapping_impls.rs b/tests/ui/const-generics/overlapping_impls.rs index e599eadd8..2ce6c4a82 100644 --- a/tests/ui/const-generics/overlapping_impls.rs +++ b/tests/ui/const-generics/overlapping_impls.rs @@ -2,7 +2,8 @@ #![allow(incomplete_features)] #![feature(adt_const_params)] #![feature(generic_const_exprs)] -use std::marker::PhantomData; + +use std::marker::{ConstParamTy, PhantomData}; struct Foo<const I: i32, const J: i32> {} @@ -22,7 +23,7 @@ pub struct Foo2<const P: Protocol, T> { _marker: PhantomData<T>, } -#[derive(PartialEq, Eq)] +#[derive(PartialEq, Eq, ConstParamTy)] pub enum Protocol { Variant1, Variant2, diff --git a/tests/ui/const-generics/std/const-generics-range.full.stderr b/tests/ui/const-generics/std/const-generics-range.full.stderr new file mode 100644 index 000000000..5bf48ad73 --- /dev/null +++ b/tests/ui/const-generics/std/const-generics-range.full.stderr @@ -0,0 +1,39 @@ +error[E0741]: `std::ops::Range<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-generics-range.rs:8:24 + | +LL | struct _Range<const R: std::ops::Range<usize>>; + | ^^^^^^^^^^^^^^^^^^^^^^ + +error[E0741]: `RangeFrom<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-generics-range.rs:13:28 + | +LL | struct _RangeFrom<const R: std::ops::RangeFrom<usize>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error[E0741]: `RangeFull` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-generics-range.rs:18:28 + | +LL | struct _RangeFull<const R: std::ops::RangeFull>; + | ^^^^^^^^^^^^^^^^^^^ + +error[E0741]: `RangeInclusive<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-generics-range.rs:24:33 + | +LL | struct _RangeInclusive<const R: std::ops::RangeInclusive<usize>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error[E0741]: `RangeTo<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-generics-range.rs:29:26 + | +LL | struct _RangeTo<const R: std::ops::RangeTo<usize>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^ + +error[E0741]: `RangeToInclusive<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter + --> $DIR/const-generics-range.rs:34:35 + | +LL | struct _RangeToInclusive<const R: std::ops::RangeToInclusive<usize>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0741`. diff --git a/tests/ui/const-generics/std/const-generics-range.min.stderr b/tests/ui/const-generics/std/const-generics-range.min.stderr index d4b2ad6fd..53fca6e88 100644 --- a/tests/ui/const-generics/std/const-generics-range.min.stderr +++ b/tests/ui/const-generics/std/const-generics-range.min.stderr @@ -1,5 +1,5 @@ error: `std::ops::Range<usize>` is forbidden as the type of a const generic parameter - --> $DIR/const-generics-range.rs:7:24 + --> $DIR/const-generics-range.rs:8:24 | LL | struct _Range<const R: std::ops::Range<usize>>; | ^^^^^^^^^^^^^^^^^^^^^^ @@ -8,7 +8,7 @@ LL | struct _Range<const R: std::ops::Range<usize>>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `RangeFrom<usize>` is forbidden as the type of a const generic parameter - --> $DIR/const-generics-range.rs:12:28 + --> $DIR/const-generics-range.rs:13:28 | LL | struct _RangeFrom<const R: std::ops::RangeFrom<usize>>; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -17,7 +17,7 @@ LL | struct _RangeFrom<const R: std::ops::RangeFrom<usize>>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `RangeFull` is forbidden as the type of a const generic parameter - --> $DIR/const-generics-range.rs:17:28 + --> $DIR/const-generics-range.rs:18:28 | LL | struct _RangeFull<const R: std::ops::RangeFull>; | ^^^^^^^^^^^^^^^^^^^ @@ -26,7 +26,7 @@ LL | struct _RangeFull<const R: std::ops::RangeFull>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `RangeInclusive<usize>` is forbidden as the type of a const generic parameter - --> $DIR/const-generics-range.rs:23:33 + --> $DIR/const-generics-range.rs:24:33 | LL | struct _RangeInclusive<const R: std::ops::RangeInclusive<usize>>; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -35,7 +35,7 @@ LL | struct _RangeInclusive<const R: std::ops::RangeInclusive<usize>>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `RangeTo<usize>` is forbidden as the type of a const generic parameter - --> $DIR/const-generics-range.rs:28:26 + --> $DIR/const-generics-range.rs:29:26 | LL | struct _RangeTo<const R: std::ops::RangeTo<usize>>; | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -44,7 +44,7 @@ LL | struct _RangeTo<const R: std::ops::RangeTo<usize>>; = help: more complex types are supported with `#![feature(adt_const_params)]` error: `RangeToInclusive<usize>` is forbidden as the type of a const generic parameter - --> $DIR/const-generics-range.rs:33:35 + --> $DIR/const-generics-range.rs:34:35 | LL | struct _RangeToInclusive<const R: std::ops::RangeToInclusive<usize>>; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/const-generics/std/const-generics-range.rs b/tests/ui/const-generics/std/const-generics-range.rs index 46c06f312..bda59f3ec 100644 --- a/tests/ui/const-generics/std/const-generics-range.rs +++ b/tests/ui/const-generics/std/const-generics-range.rs @@ -1,4 +1,5 @@ -// [full] check-pass +// [full] known-bug: unknown + // revisions: full min #![cfg_attr(full, feature(adt_const_params))] #![cfg_attr(full, allow(incomplete_features))] diff --git a/tests/ui/const-generics/transmute-fail.stderr b/tests/ui/const-generics/transmute-fail.stderr index 3d1197afd..9e308620a 100644 --- a/tests/ui/const-generics/transmute-fail.stderr +++ b/tests/ui/const-generics/transmute-fail.stderr @@ -43,8 +43,8 @@ error[E0512]: cannot transmute between types of different sizes, or dependently- LL | std::mem::transmute(v) | ^^^^^^^^^^^^^^^^^^^ | - = note: source type: `[[[u32; 8888888]; 9999999]; 777777777]` (values of the type `[[[u32; 8888888]; 9999999]; 777777777]` are too big for the current architecture) - = note: target type: `[[[u32; 9999999]; 777777777]; 8888888]` (values of the type `[[[u32; 9999999]; 777777777]; 8888888]` are too big for the current architecture) + = note: source type: `[[[u32; 8888888]; 9999999]; 777777777]` (values of the type `[[u32; 8888888]; 9999999]` are too big for the current architecture) + = note: target type: `[[[u32; 9999999]; 777777777]; 8888888]` (values of the type `[[u32; 9999999]; 777777777]` are too big for the current architecture) error: aborting due to 6 previous errors |