diff options
Diffstat (limited to 'src/test/ui/const-generics')
41 files changed, 611 insertions, 123 deletions
diff --git a/src/test/ui/const-generics/argument_order.stderr b/src/test/ui/const-generics/argument_order.stderr index 6b33dffb4..99122c6f5 100644 --- a/src/test/ui/const-generics/argument_order.stderr +++ b/src/test/ui/const-generics/argument_order.stderr @@ -1,4 +1,4 @@ -error: lifetime parameters must be declared prior to const parameters +error: lifetime parameters must be declared prior to type and const parameters --> $DIR/argument_order.rs:6:32 | LL | struct AlsoBad<const N: usize, 'a, T, 'b, const M: usize, U> { @@ -11,7 +11,7 @@ LL | let _: AlsoBad<7, 'static, u32, 'static, 17, u16>; | ^^^^^^^ | = note: lifetime arguments must be provided before type arguments - = help: reorder the arguments: lifetimes, then consts: `<'a, 'b, N, T, M, U>` + = help: reorder the arguments: lifetimes, then type and consts: `<'a, 'b, N, T, M, U>` error: aborting due to 2 previous errors diff --git a/src/test/ui/const-generics/const-param-before-other-params.rs b/src/test/ui/const-generics/const-param-before-other-params.rs index da06aca30..cb1cebe1f 100644 --- a/src/test/ui/const-generics/const-param-before-other-params.rs +++ b/src/test/ui/const-generics/const-param-before-other-params.rs @@ -1,5 +1,5 @@ fn bar<const X: u8, 'a>(_: &'a ()) { - //~^ ERROR lifetime parameters must be declared prior to const parameters + //~^ ERROR lifetime parameters must be declared prior to type and const parameters } fn foo<const X: u8, T>(_: &T) {} diff --git a/src/test/ui/const-generics/const-param-before-other-params.stderr b/src/test/ui/const-generics/const-param-before-other-params.stderr index 607d20c4a..2c7a47bbc 100644 --- a/src/test/ui/const-generics/const-param-before-other-params.stderr +++ b/src/test/ui/const-generics/const-param-before-other-params.stderr @@ -1,4 +1,4 @@ -error: lifetime parameters must be declared prior to const parameters +error: lifetime parameters must be declared prior to type and const parameters --> $DIR/const-param-before-other-params.rs:1:21 | LL | fn bar<const X: u8, 'a>(_: &'a ()) { diff --git a/src/test/ui/const-generics/defaults/generic-expr-default-concrete.stderr b/src/test/ui/const-generics/defaults/generic-expr-default-concrete.stderr index e8826ce43..61b355118 100644 --- a/src/test/ui/const-generics/defaults/generic-expr-default-concrete.stderr +++ b/src/test/ui/const-generics/defaults/generic-expr-default-concrete.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types LL | Foo::<10, 12> | ^^^^^^^^^^^^^ expected `11`, found `12` | - = note: expected type `11` - found type `12` + = note: expected constant `11` + found constant `12` error: aborting due to previous error diff --git a/src/test/ui/const-generics/defaults/generic-expr-default-mismatched-types.stderr b/src/test/ui/const-generics/defaults/generic-expr-default-mismatched-types.stderr index d5a3071b7..e83f89a60 100644 --- a/src/test/ui/const-generics/defaults/generic-expr-default-mismatched-types.stderr +++ b/src/test/ui/const-generics/defaults/generic-expr-default-mismatched-types.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types LL | Foo::<N, { N + 2 }> | ^^^^^^^^^^^^^^^^^^^ expected `{ N + 1 }`, found `{ N + 2 }` | - = note: expected type `{ N + 1 }` - found type `{ N + 2 }` + = note: expected constant `{ N + 1 }` + found constant `{ N + 2 }` error: aborting due to previous error diff --git a/src/test/ui/const-generics/defaults/intermixed-lifetime.rs b/src/test/ui/const-generics/defaults/intermixed-lifetime.rs index 578938db4..beaf7fc60 100644 --- a/src/test/ui/const-generics/defaults/intermixed-lifetime.rs +++ b/src/test/ui/const-generics/defaults/intermixed-lifetime.rs @@ -1,9 +1,9 @@ // Checks that lifetimes cannot be interspersed between consts and types. struct Foo<const N: usize, 'a, T = u32>(&'a (), T); -//~^ Error lifetime parameters must be declared prior to const parameters +//~^ ERROR lifetime parameters must be declared prior to type and const parameters struct Bar<const N: usize, T = u32, 'a>(&'a (), T); -//~^ Error lifetime parameters must be declared prior to type parameters +//~^ ERROR lifetime parameters must be declared prior to type and const parameters fn main() {} diff --git a/src/test/ui/const-generics/defaults/intermixed-lifetime.stderr b/src/test/ui/const-generics/defaults/intermixed-lifetime.stderr index e27976deb..5cff61dd9 100644 --- a/src/test/ui/const-generics/defaults/intermixed-lifetime.stderr +++ b/src/test/ui/const-generics/defaults/intermixed-lifetime.stderr @@ -1,10 +1,10 @@ -error: lifetime parameters must be declared prior to const parameters +error: lifetime parameters must be declared prior to type and const parameters --> $DIR/intermixed-lifetime.rs:3:28 | LL | struct Foo<const N: usize, 'a, T = u32>(&'a (), T); | -----------------^^---------- help: reorder the parameters: lifetimes, then consts and types: `<'a, const N: usize, T = u32>` -error: lifetime parameters must be declared prior to type parameters +error: lifetime parameters must be declared prior to type and const parameters --> $DIR/intermixed-lifetime.rs:6:37 | LL | struct Bar<const N: usize, T = u32, 'a>(&'a (), T); diff --git a/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.rs b/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.rs index da087ffc3..f928fc9e7 100644 --- a/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.rs +++ b/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.rs @@ -1,4 +1,4 @@ struct Foo<const M: usize = 10, 'a>(&'a u32); -//~^ Error lifetime parameters must be declared prior to const parameters +//~^ ERROR lifetime parameters must be declared prior to type and const parameters fn main() {} diff --git a/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.stderr b/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.stderr index 55f5a5353..ba08b4646 100644 --- a/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.stderr +++ b/src/test/ui/const-generics/defaults/param-order-err-pretty-prints-default.stderr @@ -1,4 +1,4 @@ -error: lifetime parameters must be declared prior to const parameters +error: lifetime parameters must be declared prior to type and const parameters --> $DIR/param-order-err-pretty-prints-default.rs:1:33 | LL | struct Foo<const M: usize = 10, 'a>(&'a u32); diff --git a/src/test/ui/const-generics/defaults/trait_objects_fail.stderr b/src/test/ui/const-generics/defaults/trait_objects_fail.stderr index a9c185e5f..0e8334d03 100644 --- a/src/test/ui/const-generics/defaults/trait_objects_fail.stderr +++ b/src/test/ui/const-generics/defaults/trait_objects_fail.stderr @@ -2,9 +2,7 @@ error[E0277]: the trait bound `u32: Trait` is not satisfied --> $DIR/trait_objects_fail.rs:26:9 | LL | foo(&10_u32); - | --- ^^^^^^^ the trait `Trait` is not implemented for `u32` - | | - | required by a bound introduced by this call + | ^^^^^^^ the trait `Trait` is not implemented for `u32` | = help: the trait `Trait<2>` is implemented for `u32` = note: required for the cast from `u32` to the object type `dyn Trait` @@ -13,9 +11,7 @@ error[E0277]: the trait bound `bool: Traitor<_>` is not satisfied --> $DIR/trait_objects_fail.rs:28:9 | LL | bar(&true); - | --- ^^^^^ the trait `Traitor<_>` is not implemented for `bool` - | | - | required by a bound introduced by this call + | ^^^^^ the trait `Traitor<_>` is not implemented for `bool` | = help: the trait `Traitor<2, 3>` is implemented for `bool` = note: required for the cast from `bool` to the object type `dyn Traitor<_>` diff --git a/src/test/ui/const-generics/early/const-param-from-outer-fn.stderr b/src/test/ui/const-generics/early/const-param-from-outer-fn.stderr index a9f9787d8..e3bf38b70 100644 --- a/src/test/ui/const-generics/early/const-param-from-outer-fn.stderr +++ b/src/test/ui/const-generics/early/const-param-from-outer-fn.stderr @@ -4,7 +4,7 @@ error[E0401]: can't use generic parameters from outer function LL | fn foo<const X: u32>() { | - const parameter from outer function LL | fn bar() -> u32 { - | --- try adding a local generic parameter in this method instead + | - help: try using a local generic parameter instead: `<X>` LL | X | ^ use of generic parameter from outer function diff --git a/src/test/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr b/src/test/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr index ababb27a8..ada1050d3 100644 --- a/src/test/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr @@ -1,11 +1,11 @@ error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-3.rs:17:5 + --> $DIR/abstract-const-as-cast-3.rs:17:19 | LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as u128 }>>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` -note: required because of the requirements on the impl of `Trait` for `HasCastInTraitImpl<{ N + 1 }, { N as u128 }>` +note: required for `HasCastInTraitImpl<{ N + 1 }, { N as u128 }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | LL | impl<const O: usize> Trait for HasCastInTraitImpl<O, { O as u128 }> {} @@ -22,17 +22,22 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as u128 }>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{ N as u128 }`, found `{ O as u128 }` | - = note: expected type `{ N as u128 }` - found type `{ O as u128 }` + = note: expected constant `{ N as u128 }` + found constant `{ O as u128 }` +note: required by a bound in `use_trait_impl::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:14:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl::assert_impl` error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-3.rs:20:5 + --> $DIR/abstract-const-as-cast-3.rs:20:19 | LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as _ }>>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` -note: required because of the requirements on the impl of `Trait` for `HasCastInTraitImpl<{ N + 1 }, { N as _ }>` +note: required for `HasCastInTraitImpl<{ N + 1 }, { N as _ }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | LL | impl<const O: usize> Trait for HasCastInTraitImpl<O, { O as u128 }> {} @@ -49,8 +54,13 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as _ }>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{ N as _ }`, found `{ O as u128 }` | - = note: expected type `{ N as _ }` - found type `{ O as u128 }` + = note: expected constant `{ N as _ }` + found constant `{ O as u128 }` +note: required by a bound in `use_trait_impl::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:14:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl::assert_impl` error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:23:5 @@ -58,8 +68,13 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<13, { 12 as u128 }>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `12`, found `13` | - = note: expected type `12` - found type `13` + = note: expected constant `12` + found constant `13` +note: required by a bound in `use_trait_impl::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:14:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl::assert_impl` error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:25:5 @@ -67,17 +82,22 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<14, 13>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `13`, found `14` | - = note: expected type `13` - found type `14` + = note: expected constant `13` + found constant `14` +note: required by a bound in `use_trait_impl::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:14:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl::assert_impl` error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-3.rs:35:5 + --> $DIR/abstract-const-as-cast-3.rs:35:19 | LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as u128 }>>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` -note: required because of the requirements on the impl of `Trait` for `HasCastInTraitImpl<{ N + 1 }, { N as u128 }>` +note: required for `HasCastInTraitImpl<{ N + 1 }, { N as u128 }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | LL | impl<const O: usize> Trait for HasCastInTraitImpl<O, { O as u128 }> {} @@ -94,17 +114,22 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as u128 }>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{ N as u128 }`, found `{ O as u128 }` | - = note: expected type `{ N as u128 }` - found type `{ O as u128 }` + = note: expected constant `{ N as u128 }` + found constant `{ O as u128 }` +note: required by a bound in `use_trait_impl_2::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:32:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl_2::assert_impl` error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-3.rs:38:5 + --> $DIR/abstract-const-as-cast-3.rs:38:19 | LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as _ }>>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` -note: required because of the requirements on the impl of `Trait` for `HasCastInTraitImpl<{ N + 1 }, { N as _ }>` +note: required for `HasCastInTraitImpl<{ N + 1 }, { N as _ }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | LL | impl<const O: usize> Trait for HasCastInTraitImpl<O, { O as u128 }> {} @@ -121,8 +146,13 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<{ N + 1 }, { N as _ }>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{ N as _ }`, found `{ O as u128 }` | - = note: expected type `{ N as _ }` - found type `{ O as u128 }` + = note: expected constant `{ N as _ }` + found constant `{ O as u128 }` +note: required by a bound in `use_trait_impl_2::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:32:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl_2::assert_impl` error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:41:5 @@ -130,8 +160,13 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<13, { 12 as u128 }>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `12`, found `13` | - = note: expected type `12` - found type `13` + = note: expected constant `12` + found constant `13` +note: required by a bound in `use_trait_impl_2::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:32:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl_2::assert_impl` error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:43:5 @@ -139,8 +174,13 @@ error[E0308]: mismatched types LL | assert_impl::<HasCastInTraitImpl<14, 13>>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `13`, found `14` | - = note: expected type `13` - found type `14` + = note: expected constant `13` + found constant `14` +note: required by a bound in `use_trait_impl_2::assert_impl` + --> $DIR/abstract-const-as-cast-3.rs:32:23 + | +LL | fn assert_impl<T: Trait>() {} + | ^^^^^ required by this bound in `use_trait_impl_2::assert_impl` error: aborting due to 12 previous errors diff --git a/src/test/ui/const-generics/generic_const_exprs/different-fn.stderr b/src/test/ui/const-generics/generic_const_exprs/different-fn.stderr index 2aeb9b961..83a2f3740 100644 --- a/src/test/ui/const-generics/generic_const_exprs/different-fn.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/different-fn.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types LL | [0; size_of::<Foo<T>>()] | ^^^^^^^^^^^^^^^^^^^^^^^^ expected `size_of::<T>()`, found `size_of::<Foo<T>>()` | - = note: expected type `size_of::<T>()` - found type `size_of::<Foo<T>>()` + = note: expected constant `size_of::<T>()` + found constant `size_of::<Foo<T>>()` error: unconstrained generic constant --> $DIR/different-fn.rs:10:9 diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-100217.rs b/src/test/ui/const-generics/generic_const_exprs/issue-100217.rs new file mode 100644 index 000000000..acdc348a3 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-100217.rs @@ -0,0 +1,42 @@ +// build-pass + +#![allow(incomplete_features)] +#![feature(generic_const_exprs)] + +trait TraitOne { + const MY_NUM: usize; + type MyErr: std::fmt::Debug; + + fn do_one_stuff(arr: [u8; Self::MY_NUM]) -> Result<(), Self::MyErr>; +} + +trait TraitTwo { + fn do_two_stuff(); +} + +impl<O: TraitOne> TraitTwo for O +where + [(); Self::MY_NUM]:, +{ + fn do_two_stuff() { + O::do_one_stuff([5; Self::MY_NUM]).unwrap() + } +} + +struct Blargotron; + +#[derive(Debug)] +struct ErrTy<const N: usize>([(); N]); + +impl TraitOne for Blargotron { + const MY_NUM: usize = 3; + type MyErr = ErrTy<{ Self::MY_NUM }>; + + fn do_one_stuff(_arr: [u8; Self::MY_NUM]) -> Result<(), Self::MyErr> { + Ok(()) + } +} + +fn main() { + Blargotron::do_two_stuff(); +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-100360.rs b/src/test/ui/const-generics/generic_const_exprs/issue-100360.rs new file mode 100644 index 000000000..5572f1f88 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-100360.rs @@ -0,0 +1,13 @@ +// check-pass +// (this requires debug assertions) + +#![feature(adt_const_params)] +#![allow(incomplete_features)] + +fn foo<const B: &'static bool>(arg: &'static bool) -> bool { + B == arg +} + +fn main() { + foo::<{ &true }>(&false); +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-62504.full.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-62504.full.stderr index f2ae361dc..0742db398 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-62504.full.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-62504.full.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types LL | ArrayHolder([0; Self::SIZE]) | ^^^^^^^^^^^^^^^ expected `X`, found `Self::SIZE` | - = note: expected type `X` - found type `Self::SIZE` + = note: expected constant `X` + found constant `Self::SIZE` error: unconstrained generic constant --> $DIR/issue-62504.rs:18:25 diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-69654.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-69654.stderr index 7a083733a..c3e2f8e16 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-69654.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-69654.stderr @@ -2,7 +2,9 @@ error[E0423]: expected value, found type parameter `T` --> $DIR/issue-69654.rs:5:25 | LL | impl<T> Bar<T> for [u8; T] {} - | ^ not a value + | - ^ not a value + | | + | found this type parameter error[E0599]: the function or associated item `foo` exists for struct `Foo<_>`, but its trait bounds were not satisfied --> $DIR/issue-69654.rs:17:10 diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-72819-generic-in-const-eval.full.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-72819-generic-in-const-eval.full.stderr index d536f6fd1..f2fddfbfb 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-72819-generic-in-const-eval.full.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-72819-generic-in-const-eval.full.stderr @@ -4,8 +4,15 @@ error[E0308]: mismatched types LL | let x: Arr<{usize::MAX}> = Arr {}; | ^^^^^^^^^^^^^^^^^ expected `false`, found `true` | - = note: expected type `false` - found type `true` + = note: expected constant `false` + found constant `true` +note: required by a bound in `Arr` + --> $DIR/issue-72819-generic-in-const-eval.rs:8:39 + | +LL | struct Arr<const N: usize> + | --- required by a bound in this +LL | where Assert::<{N < usize::MAX / 2}>: IsTrue, + | ^^^^^^ required by this bound in `Arr` error[E0308]: mismatched types --> $DIR/issue-72819-generic-in-const-eval.rs:20:32 @@ -13,8 +20,15 @@ error[E0308]: mismatched types LL | let x: Arr<{usize::MAX}> = Arr {}; | ^^^ expected `false`, found `true` | - = note: expected type `false` - found type `true` + = note: expected constant `false` + found constant `true` +note: required by a bound in `Arr` + --> $DIR/issue-72819-generic-in-const-eval.rs:8:39 + | +LL | struct Arr<const N: usize> + | --- required by a bound in this +LL | where Assert::<{N < usize::MAX / 2}>: IsTrue, + | ^^^^^^ required by this bound in `Arr` error: aborting due to 2 previous errors diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-73298.rs b/src/test/ui/const-generics/generic_const_exprs/issue-73298.rs new file mode 100644 index 000000000..3c59e1b79 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-73298.rs @@ -0,0 +1,23 @@ +// build-pass + +#![allow(incomplete_features)] +#![feature(generic_const_exprs)] + +use std::convert::AsMut; +use std::default::Default; + +trait Foo: Sized { + type Baz: Default + AsMut<[u8]>; + fn bar() { + Self::Baz::default().as_mut(); + } +} + +impl Foo for () { + type Baz = [u8; 1 * 1]; + //type Baz = [u8; 1]; +} + +fn main() { + <() as Foo>::bar(); +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-82268.rs b/src/test/ui/const-generics/generic_const_exprs/issue-82268.rs new file mode 100644 index 000000000..d08fc5beb --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-82268.rs @@ -0,0 +1,73 @@ +// build-pass + +#![allow(incomplete_features)] +#![feature(generic_const_exprs)] + +trait Collate<Op> { + type Pass; + type Fail; + + fn collate(self) -> (Self::Pass, Self::Fail); +} + +impl<Op> Collate<Op> for () { + type Pass = (); + type Fail = (); + + fn collate(self) -> ((), ()) { + ((), ()) + } +} + +trait CollateStep<X, Prev> { + type Pass; + type Fail; + fn collate_step(x: X, prev: Prev) -> (Self::Pass, Self::Fail); +} + +impl<X, P, F> CollateStep<X, (P, F)> for () { + type Pass = (X, P); + type Fail = F; + + fn collate_step(x: X, (p, f): (P, F)) -> ((X, P), F) { + ((x, p), f) + } +} + +struct CollateOpImpl<const MASK: u32>; +trait CollateOpStep { + type NextOp; + type Apply; +} + +impl<const MASK: u32> CollateOpStep for CollateOpImpl<MASK> +where + CollateOpImpl<{ MASK >> 1 }>: Sized, +{ + type NextOp = CollateOpImpl<{ MASK >> 1 }>; + type Apply = (); +} + +impl<H, T, Op: CollateOpStep> Collate<Op> for (H, T) +where + T: Collate<Op::NextOp>, + Op::Apply: CollateStep<H, (T::Pass, T::Fail)>, +{ + type Pass = <Op::Apply as CollateStep<H, (T::Pass, T::Fail)>>::Pass; + type Fail = <Op::Apply as CollateStep<H, (T::Pass, T::Fail)>>::Fail; + + fn collate(self) -> (Self::Pass, Self::Fail) { + <Op::Apply as CollateStep<H, (T::Pass, T::Fail)>>::collate_step(self.0, self.1.collate()) + } +} + +fn collate<X, const MASK: u32>(x: X) -> (X::Pass, X::Fail) +where + X: Collate<CollateOpImpl<MASK>>, +{ + x.collate() +} + +fn main() { + dbg!(collate::<_, 5>(("Hello", (42, ('!', ()))))); +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-83765.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-83765.stderr index 0332e82fe..b693023f1 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-83765.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-83765.stderr @@ -4,8 +4,8 @@ error[E0308]: method not compatible with trait LL | fn size(&self) -> [usize; DIM] { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Self::DIM`, found `DIM` | - = note: expected type `Self::DIM` - found type `DIM` + = note: expected constant `Self::DIM` + found constant `DIM` error: unconstrained generic constant --> $DIR/issue-83765.rs:32:24 @@ -26,8 +26,8 @@ error[E0308]: mismatched types LL | self.reference.size() | ^^^^^^^^^^^^^^^^^^^^^ expected `DIM`, found `Self::DIM` | - = note: expected type `DIM` - found type `Self::DIM` + = note: expected constant `DIM` + found constant `Self::DIM` error: aborting due to 3 previous errors diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-83972.rs b/src/test/ui/const-generics/generic_const_exprs/issue-83972.rs new file mode 100644 index 000000000..0063719b8 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-83972.rs @@ -0,0 +1,38 @@ +// build-pass + +#![allow(incomplete_features)] +#![feature(generic_const_exprs)] + +pub trait Foo { + fn foo(&self); +} + +pub struct FooImpl<const N: usize>; +impl<const N: usize> Foo for FooImpl<N> { + fn foo(&self) {} +} + +pub trait Bar: 'static { + type Foo: Foo; + fn get() -> &'static Self::Foo; +} + +struct BarImpl; +impl Bar for BarImpl { + type Foo = FooImpl< + { + { 4 } + }, + >; + fn get() -> &'static Self::Foo { + &FooImpl + } +} + +pub fn boom<B: Bar>() { + B::get().foo(); +} + +fn main() { + boom::<BarImpl>(); +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-84669.rs b/src/test/ui/const-generics/generic_const_exprs/issue-84669.rs new file mode 100644 index 000000000..3933ff20a --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-84669.rs @@ -0,0 +1,30 @@ +// build-pass + +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +trait Foo { + type Output; + + fn foo() -> Self::Output; +} + +impl Foo for [u8; 3] { + type Output = [u8; 1 + 2]; + + fn foo() -> [u8; 3] { + [1u8; 3] + } +} + +fn bug<const N: usize>() +where + [u8; N]: Foo, + <[u8; N] as Foo>::Output: AsRef<[u8]>, +{ + <[u8; N]>::foo().as_ref(); +} + +fn main() { + bug::<3>(); +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-85848.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-85848.stderr index d45dfde9a..09bcb0860 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-85848.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-85848.stderr @@ -7,12 +7,12 @@ LL | writes_to_specific_path(&cap); | required by a bound introduced by this call | = help: the trait `Delegates<U>` is implemented for `T` -note: required because of the requirements on the impl of `Contains<(), true>` for `&C` +note: required for `&C` to implement `Contains<(), true>` --> $DIR/issue-85848.rs:21:12 | LL | impl<T, U> Contains<T, { contains::<T, U>() }> for U where T: _Contains<U> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^ -note: required because of the requirements on the impl of `Delegates<()>` for `&C` +note: required for `&C` to implement `Delegates<()>` --> $DIR/issue-85848.rs:12:12 | LL | impl<T, U> Delegates<U> for T where T: Contains<U, true> {} @@ -32,12 +32,12 @@ LL | writes_to_specific_path(&cap); | required by a bound introduced by this call | = help: try adding a `where` bound using this expression: `where [(); { contains::<T, U>() }]:` -note: required because of the requirements on the impl of `Contains<(), true>` for `&C` +note: required for `&C` to implement `Contains<(), true>` --> $DIR/issue-85848.rs:21:12 | LL | impl<T, U> Contains<T, { contains::<T, U>() }> for U where T: _Contains<U> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^ -note: required because of the requirements on the impl of `Delegates<()>` for `&C` +note: required for `&C` to implement `Delegates<()>` --> $DIR/issue-85848.rs:12:12 | LL | impl<T, U> Delegates<U> for T where T: Contains<U, true> {} @@ -54,8 +54,8 @@ error[E0308]: mismatched types LL | writes_to_specific_path(&cap); | ^^^^^^^^^^^^^^^^^^^^^^^ expected `true`, found `{ contains::<T, U>() }` | - = note: expected type `true` - found type `{ contains::<T, U>() }` + = note: expected constant `true` + found constant `{ contains::<T, U>() }` error: aborting due to 3 previous errors diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-86710.rs b/src/test/ui/const-generics/generic_const_exprs/issue-86710.rs new file mode 100644 index 000000000..bdd8a21b3 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-86710.rs @@ -0,0 +1,73 @@ +// build-pass + +#![allow(incomplete_features)] +#![feature(generic_const_exprs)] + +use std::marker::PhantomData; + +fn main() { + let x = FooImpl::<BarImpl<1>> { phantom: PhantomData }; + let _ = x.foo::<BarImpl<1>>(); +} + +trait Foo<T> +where + T: Bar, +{ + fn foo<U>(&self) + where + T: Operation<U>, + <T as Operation<U>>::Output: Bar; +} + +struct FooImpl<T> +where + T: Bar, +{ + phantom: PhantomData<T>, +} + +impl<T> Foo<T> for FooImpl<T> +where + T: Bar, +{ + fn foo<U>(&self) + where + T: Operation<U>, + <T as Operation<U>>::Output: Bar, + { + <<T as Operation<U>>::Output as Bar>::error_occurs_here(); + } +} + +trait Bar { + fn error_occurs_here(); +} + +struct BarImpl<const N: usize>; + +impl<const N: usize> Bar for BarImpl<N> { + fn error_occurs_here() {} +} + +trait Operation<Rhs> { + type Output; +} + +//// Part-A: This causes error. +impl<const M: usize, const N: usize> Operation<BarImpl<M>> for BarImpl<N> +where + BarImpl<{ N + M }>: Sized, +{ + type Output = BarImpl<{ N + M }>; +} + +//// Part-B: This doesn't cause error. +// impl<const M: usize, const N: usize> Operation<BarImpl<M>> for BarImpl<N> { +// type Output = BarImpl<M>; +// } + +//// Part-C: This also doesn't cause error. +// impl<const M: usize, const N: usize> Operation<BarImpl<M>> for BarImpl<N> { +// type Output = BarImpl<{ M }>; +// } diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-89851.rs b/src/test/ui/const-generics/generic_const_exprs/issue-89851.rs new file mode 100644 index 000000000..cde849d90 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-89851.rs @@ -0,0 +1,12 @@ +// check-pass +// (this requires debug assertions) + +#![feature(adt_const_params)] +#![allow(incomplete_features)] + +pub const BAR: () = ice::<"">(); +pub const fn ice<const N: &'static str>() { + &10; +} + +fn main() {} diff --git a/src/test/ui/const-generics/generic_const_exprs/obligation-cause.rs b/src/test/ui/const-generics/generic_const_exprs/obligation-cause.rs new file mode 100644 index 000000000..e7c8e4f66 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/obligation-cause.rs @@ -0,0 +1,24 @@ +#![allow(incomplete_features)] +#![feature(generic_const_exprs)] + +trait True {} + +struct Is<const V: bool>; + +impl True for Is<true> {} + +fn g<T>() +//~^ NOTE required by a bound in this +where + Is<{ std::mem::size_of::<T>() == 0 }>: True, + //~^ NOTE required by a bound in `g` + //~| NOTE required by this bound in `g` +{ +} + +fn main() { + g::<usize>(); + //~^ ERROR mismatched types + //~| NOTE expected `false`, found `true` + //~| NOTE expected constant `false` +} diff --git a/src/test/ui/const-generics/generic_const_exprs/obligation-cause.stderr b/src/test/ui/const-generics/generic_const_exprs/obligation-cause.stderr new file mode 100644 index 000000000..a253ec676 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/obligation-cause.stderr @@ -0,0 +1,20 @@ +error[E0308]: mismatched types + --> $DIR/obligation-cause.rs:20:5 + | +LL | g::<usize>(); + | ^^^^^^^^^^ expected `false`, found `true` + | + = note: expected constant `false` + found constant `true` +note: required by a bound in `g` + --> $DIR/obligation-cause.rs:13:44 + | +LL | fn g<T>() + | - required by a bound in this +... +LL | Is<{ std::mem::size_of::<T>() == 0 }>: True, + | ^^^^ required by this bound in `g` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr b/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr index b1b359619..d955b4f96 100644 --- a/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr +++ b/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr @@ -2,15 +2,22 @@ error[E0107]: this associated function takes 0 generic arguments but 1 generic a --> $DIR/invalid-const-arg-for-type-param.rs:6:23 | LL | let _: u32 = 5i32.try_into::<32>().unwrap(); - | ^^^^^^^^------ help: remove these generics - | | - | expected 0 generic arguments + | ^^^^^^^^ expected 0 generic arguments | note: associated function defined here, with 0 generic parameters --> $SRC_DIR/core/src/convert/mod.rs:LL:COL | LL | fn try_into(self) -> Result<T, Self::Error>; | ^^^^^^^^ +help: consider moving this generic argument to the `TryInto` trait, which takes up to 1 argument + | +LL | let _: u32 = TryInto::<32>::try_into(5i32).unwrap(); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +help: remove these generics + | +LL - let _: u32 = 5i32.try_into::<32>().unwrap(); +LL + let _: u32 = 5i32.try_into().unwrap(); + | error[E0599]: no method named `f` found for struct `S` in the current scope --> $DIR/invalid-const-arg-for-type-param.rs:9:7 diff --git a/src/test/ui/const-generics/issue-103243.rs b/src/test/ui/const-generics/issue-103243.rs new file mode 100644 index 000000000..78c73522b --- /dev/null +++ b/src/test/ui/const-generics/issue-103243.rs @@ -0,0 +1,37 @@ +// build-pass + +pub trait CSpace<const N: usize>: Sized { + type Traj; +} + +pub trait FullTrajectory<T, S1, const N: usize> {} + +pub struct Const<const R: usize>; + +pub trait Obstacle<CS, const N: usize> +where + CS: CSpace<N>, +{ + fn trajectory_free<FT, S1>(&self, t: &FT) + where + FT: FullTrajectory<CS::Traj, S1, N>; +} + +// ----- + +const N: usize = 4; + +struct ObstacleSpace2df32; + +impl<CS> Obstacle<CS, N> for ObstacleSpace2df32 +where + CS: CSpace<N>, +{ + fn trajectory_free<TF, S1>(&self, t: &TF) + where + TF: FullTrajectory<CS::Traj, S1, N>, + { + } +} + +fn main() {} diff --git a/src/test/ui/const-generics/issues/issue-100313.rs b/src/test/ui/const-generics/issues/issue-100313.rs new file mode 100644 index 000000000..4e9d3626a --- /dev/null +++ b/src/test/ui/const-generics/issues/issue-100313.rs @@ -0,0 +1,21 @@ +#![allow(incomplete_features)] +#![feature(const_mut_refs)] +#![feature(adt_const_params)] + +struct T<const B: &'static bool>; + +impl <const B: &'static bool> T<B> { + const fn set_false(&self) { + unsafe { + *(B as *const bool as *mut bool) = false; + //~^ ERROR evaluation of constant value failed [E0080] + } + } +} + +const _: () = { + let x = T::<{&true}>; + x.set_false(); +}; + +fn main() {} diff --git a/src/test/ui/const-generics/issues/issue-100313.stderr b/src/test/ui/const-generics/issues/issue-100313.stderr new file mode 100644 index 000000000..f3ce357c2 --- /dev/null +++ b/src/test/ui/const-generics/issues/issue-100313.stderr @@ -0,0 +1,15 @@ +error[E0080]: evaluation of constant value failed + --> $DIR/issue-100313.rs:10:13 + | +LL | *(B as *const bool as *mut bool) = false; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | writing to alloc7 which is read-only + | inside `T::<&true>::set_false` at $DIR/issue-100313.rs:10:13 +... +LL | x.set_false(); + | ------------- inside `_` at $DIR/issue-100313.rs:18:5 + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0080`. diff --git a/src/test/ui/const-generics/issues/issue-73260.stderr b/src/test/ui/const-generics/issues/issue-73260.stderr index f1fc50e6e..7670032e5 100644 --- a/src/test/ui/const-generics/issues/issue-73260.stderr +++ b/src/test/ui/const-generics/issues/issue-73260.stderr @@ -4,8 +4,16 @@ error[E0308]: mismatched types LL | let x: Arr<{usize::MAX}> = Arr {}; | ^^^^^^^^^^^^^^^^^ expected `false`, found `true` | - = note: expected type `false` - found type `true` + = note: expected constant `false` + found constant `true` +note: required by a bound in `Arr` + --> $DIR/issue-73260.rs:6:37 + | +LL | struct Arr<const N: usize> + | --- required by a bound in this +LL | where +LL | Assert::<{N < usize::MAX / 2}>: IsTrue, + | ^^^^^^ required by this bound in `Arr` error[E0308]: mismatched types --> $DIR/issue-73260.rs:16:32 @@ -13,8 +21,16 @@ error[E0308]: mismatched types LL | let x: Arr<{usize::MAX}> = Arr {}; | ^^^ expected `false`, found `true` | - = note: expected type `false` - found type `true` + = note: expected constant `false` + found constant `true` +note: required by a bound in `Arr` + --> $DIR/issue-73260.rs:6:37 + | +LL | struct Arr<const N: usize> + | --- required by a bound in this +LL | where +LL | Assert::<{N < usize::MAX / 2}>: IsTrue, + | ^^^^^^ required by this bound in `Arr` error: aborting due to 2 previous errors diff --git a/src/test/ui/const-generics/issues/issue-79674.stderr b/src/test/ui/const-generics/issues/issue-79674.stderr index 8c029289c..02b48b55f 100644 --- a/src/test/ui/const-generics/issues/issue-79674.stderr +++ b/src/test/ui/const-generics/issues/issue-79674.stderr @@ -4,8 +4,16 @@ error[E0308]: mismatched types LL | requires_distinct("str", 12); | ^^^^^^^^^^^^^^^^^ expected `true`, found `false` | - = note: expected type `true` - found type `false` + = note: expected constant `true` + found constant `false` +note: required by a bound in `requires_distinct` + --> $DIR/issue-79674.rs:23:37 + | +LL | fn requires_distinct<A, B>(_a: A, _b: B) where + | ----------------- required by a bound in this +LL | A: MiniTypeId, B: MiniTypeId, +LL | Lift<{is_same_type::<A, B>()}>: IsFalse {} + | ^^^^^^^ required by this bound in `requires_distinct` error: aborting due to previous error diff --git a/src/test/ui/const-generics/issues/issue-83466.rs b/src/test/ui/const-generics/issues/issue-83466.rs index c488a663f..73c930101 100644 --- a/src/test/ui/const-generics/issues/issue-83466.rs +++ b/src/test/ui/const-generics/issues/issue-83466.rs @@ -1,5 +1,5 @@ // regression test for #83466- tests that generic arg mismatch errors between -// consts and types are not supressed when there are explicit late bound lifetimes +// consts and types are not suppressed when there are explicit late bound lifetimes struct S; impl S { diff --git a/src/test/ui/const-generics/issues/issue-83765.stderr b/src/test/ui/const-generics/issues/issue-83765.stderr index 28ddddf1b..d5f914f46 100644 --- a/src/test/ui/const-generics/issues/issue-83765.stderr +++ b/src/test/ui/const-generics/issues/issue-83765.stderr @@ -4,13 +4,13 @@ error[E0391]: cycle detected when resolving instance `<LazyUpdim<T, { T::DIM }, LL | const DIM: usize; | ^^^^^^^^^^^^^^^^ | -note: ...which requires checking if `TensorDimension` fulfills its obligations... +note: ...which requires computing candidate for `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>`... --> $DIR/issue-83765.rs:4:1 | LL | trait TensorDimension { | ^^^^^^^^^^^^^^^^^^^^^ = note: ...which again requires resolving instance `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>::DIM`, completing the cycle -note: cycle used when checking if `TensorDimension` fulfills its obligations +note: cycle used when computing candidate for `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>` --> $DIR/issue-83765.rs:4:1 | LL | trait TensorDimension { diff --git a/src/test/ui/const-generics/issues/issue-87493.stderr b/src/test/ui/const-generics/issues/issue-87493.stderr index f998c1187..653afae21 100644 --- a/src/test/ui/const-generics/issues/issue-87493.stderr +++ b/src/test/ui/const-generics/issues/issue-87493.stderr @@ -13,15 +13,17 @@ error[E0107]: this trait takes 0 generic arguments but 1 generic argument was su --> $DIR/issue-87493.rs:8:8 | LL | T: MyTrait<Assoc == S::Assoc>, - | ^^^^^^^ ----------------- help: replace the generic bound with the associated type: `Assoc = Assoc == S::Assoc` - | | - | expected 0 generic arguments + | ^^^^^^^ expected 0 generic arguments | note: trait defined here, with 0 generic parameters --> $DIR/issue-87493.rs:1:11 | LL | pub trait MyTrait { | ^^^^^^^ +help: replace the generic bound with the associated type + | +LL | T: MyTrait<Assoc = Assoc == S::Assoc>, + | +++++++ error: aborting due to 2 previous errors diff --git a/src/test/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr b/src/test/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr index f5396b838..be92429e3 100644 --- a/src/test/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr +++ b/src/test/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr @@ -22,19 +22,14 @@ error[E0308]: mismatched types LL | get_flag::<42, 0x5ad>(); | ^^^^^ expected `char`, found `u8` -error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:38:21 +error[E0080]: evaluation of constant value failed + --> $DIR/invalid-patterns.rs:38:32 | LL | get_flag::<false, { unsafe { char_raw.character } }>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered uninitialized bytes, but expected a valid unicode scalar value (in `0..=0x10FFFF` but not in `0xD800..=0xDFFF`) - | - = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. - = note: the raw bytes of the constant (size: 4, align: 4) { - __ __ __ __ │ ░░░░ - } + | ^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:40:14 + --> $DIR/invalid-patterns.rs:41:14 | LL | get_flag::<{ unsafe { bool_raw.boolean } }, 'z'>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0x42, but expected a boolean @@ -45,7 +40,7 @@ LL | get_flag::<{ unsafe { bool_raw.boolean } }, 'z'>(); } error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:42:14 + --> $DIR/invalid-patterns.rs:43:14 | LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0x42, but expected a boolean @@ -55,16 +50,11 @@ LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character 42 │ B } -error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:42:47 +error[E0080]: evaluation of constant value failed + --> $DIR/invalid-patterns.rs:43:58 | LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered uninitialized bytes, but expected a valid unicode scalar value (in `0..=0x10FFFF` but not in `0xD800..=0xDFFF`) - | - = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. - = note: the raw bytes of the constant (size: 4, align: 4) { - __ __ __ __ │ ░░░░ - } + | ^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error: aborting due to 8 previous errors diff --git a/src/test/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr b/src/test/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr index f5396b838..be92429e3 100644 --- a/src/test/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr +++ b/src/test/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr @@ -22,19 +22,14 @@ error[E0308]: mismatched types LL | get_flag::<42, 0x5ad>(); | ^^^^^ expected `char`, found `u8` -error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:38:21 +error[E0080]: evaluation of constant value failed + --> $DIR/invalid-patterns.rs:38:32 | LL | get_flag::<false, { unsafe { char_raw.character } }>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered uninitialized bytes, but expected a valid unicode scalar value (in `0..=0x10FFFF` but not in `0xD800..=0xDFFF`) - | - = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. - = note: the raw bytes of the constant (size: 4, align: 4) { - __ __ __ __ │ ░░░░ - } + | ^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:40:14 + --> $DIR/invalid-patterns.rs:41:14 | LL | get_flag::<{ unsafe { bool_raw.boolean } }, 'z'>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0x42, but expected a boolean @@ -45,7 +40,7 @@ LL | get_flag::<{ unsafe { bool_raw.boolean } }, 'z'>(); } error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:42:14 + --> $DIR/invalid-patterns.rs:43:14 | LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0x42, but expected a boolean @@ -55,16 +50,11 @@ LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character 42 │ B } -error[E0080]: it is undefined behavior to use this value - --> $DIR/invalid-patterns.rs:42:47 +error[E0080]: evaluation of constant value failed + --> $DIR/invalid-patterns.rs:43:58 | LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered uninitialized bytes, but expected a valid unicode scalar value (in `0..=0x10FFFF` but not in `0xD800..=0xDFFF`) - | - = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. - = note: the raw bytes of the constant (size: 4, align: 4) { - __ __ __ __ │ ░░░░ - } + | ^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error: aborting due to 8 previous errors diff --git a/src/test/ui/const-generics/min_const_generics/invalid-patterns.rs b/src/test/ui/const-generics/min_const_generics/invalid-patterns.rs index 682e0eced..13b2cca2f 100644 --- a/src/test/ui/const-generics/min_const_generics/invalid-patterns.rs +++ b/src/test/ui/const-generics/min_const_generics/invalid-patterns.rs @@ -36,10 +36,12 @@ fn main() { get_flag::<false, { unsafe { char_raw.character } }>(); - //~^ ERROR it is undefined behavior + //~^ ERROR evaluation of constant value failed + //~| uninitialized get_flag::<{ unsafe { bool_raw.boolean } }, 'z'>(); //~^ ERROR it is undefined behavior get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); - //~^ ERROR it is undefined behavior + //~^ ERROR evaluation of constant value failed + //~| uninitialized //~| ERROR it is undefined behavior } diff --git a/src/test/ui/const-generics/types-mismatch-const-args.full.stderr b/src/test/ui/const-generics/types-mismatch-const-args.full.stderr index 486506239..b6a22df74 100644 --- a/src/test/ui/const-generics/types-mismatch-const-args.full.stderr +++ b/src/test/ui/const-generics/types-mismatch-const-args.full.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types LL | let _: A<'a, u32, {2u32}, {3u32}> = A::<'a, u32, {2u32 + 2u32}, {3u32}> { data: PhantomData }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `2`, found `4` | - = note: expected type `2` - found type `4` + = note: expected constant `2` + found constant `4` error[E0308]: mismatched types --> $DIR/types-mismatch-const-args.rs:16:41 |