diff options
Diffstat (limited to '')
70 files changed, 720 insertions, 167 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-generic-default-wont-borrowck.stderr b/src/test/ui/const-generics/const-generic-default-wont-borrowck.stderr index c62f1d1d2..0ed370b83 100644 --- a/src/test/ui/const-generics/const-generic-default-wont-borrowck.stderr +++ b/src/test/ui/const-generics/const-generic-default-wont-borrowck.stderr @@ -5,6 +5,11 @@ LL | let s: &'static str; s.len() | - ^^^^^^^ `*s` used here but it isn't initialized | | | binding declared here but left uninitialized + | +help: consider assigning a value + | +LL | let s: &'static str = todo!(); s.len() + | +++++++++ error: aborting due to previous error 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/const_trait_fn-issue-88433.rs b/src/test/ui/const-generics/const_trait_fn-issue-88433.rs index 8724fa698..6e04cfaec 100644 --- a/src/test/ui/const-generics/const_trait_fn-issue-88433.rs +++ b/src/test/ui/const-generics/const_trait_fn-issue-88433.rs @@ -2,6 +2,7 @@ #![feature(const_trait_impl)] +#[const_trait] trait Func<T> { type Output; 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/closures.stderr b/src/test/ui/const-generics/generic_const_exprs/closures.stderr index a15dd2016..a7d891d77 100644 --- a/src/test/ui/const-generics/generic_const_exprs/closures.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/closures.stderr @@ -1,4 +1,4 @@ -error[E0391]: cycle detected when building an abstract representation for test::{constant#0} +error[E0391]: cycle detected when building an abstract representation for `test::{constant#0}` --> $DIR/closures.rs:3:35 | LL | fn test<const N: usize>() -> [u8; N + (|| 42)()] {} @@ -14,7 +14,7 @@ note: ...which requires type-checking `test::{constant#0}`... | LL | fn test<const N: usize>() -> [u8; N + (|| 42)()] {} | ^^^^^^^^^^^^^ - = note: ...which again requires building an abstract representation for test::{constant#0}, completing the cycle + = note: ...which again requires building an abstract representation for `test::{constant#0}`, completing the cycle note: cycle used when checking that `test` is well-formed --> $DIR/closures.rs:3:1 | diff --git a/src/test/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr b/src/test/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr index 4cd86fecd..d674e3acd 100644 --- a/src/test/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr @@ -1,5 +1,5 @@ error: generic parameters may not be used in const operations - --> $DIR/dependence_lint.rs:13:32 + --> $DIR/dependence_lint.rs:14:32 | LL | let _: [u8; size_of::<*mut T>()]; // error on stable, error with gce | ^ cannot perform const operation using `T` @@ -8,7 +8,7 @@ LL | let _: [u8; size_of::<*mut T>()]; // error on stable, error with gce = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/dependence_lint.rs:20:37 + --> $DIR/dependence_lint.rs:21:37 | LL | let _: [u8; if true { size_of::<T>() } else { 3 }]; // error on stable, error with gce | ^ cannot perform const operation using `T` @@ -17,17 +17,17 @@ LL | let _: [u8; if true { size_of::<T>() } else { 3 }]; // error on stable, = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions warning: cannot use constants which depend on generic parameters in types - --> $DIR/dependence_lint.rs:9:9 + --> $DIR/dependence_lint.rs:10:9 | LL | [0; size_of::<*mut T>()]; // lint on stable, error with `generic_const_exprs` | ^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(const_evaluatable_unchecked)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> + = note: `#[warn(const_evaluatable_unchecked)]` on by default warning: cannot use constants which depend on generic parameters in types - --> $DIR/dependence_lint.rs:16:9 + --> $DIR/dependence_lint.rs:17:9 | LL | [0; if false { size_of::<T>() } else { 3 }]; // lint on stable, error with gce | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr b/src/test/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr index b13bcdb2c..74111ef1d 100644 --- a/src/test/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr @@ -1,5 +1,5 @@ error: overly complex generic constant - --> $DIR/dependence_lint.rs:16:9 + --> $DIR/dependence_lint.rs:17:9 | LL | [0; if false { size_of::<T>() } else { 3 }]; // lint on stable, error with gce | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ control flow is not supported in generic constants @@ -7,7 +7,7 @@ LL | [0; if false { size_of::<T>() } else { 3 }]; // lint on stable, error w = help: consider moving this anonymous constant into a `const` function error: overly complex generic constant - --> $DIR/dependence_lint.rs:20:17 + --> $DIR/dependence_lint.rs:21:17 | LL | let _: [u8; if true { size_of::<T>() } else { 3 }]; // error on stable, error with gce | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ control flow is not supported in generic constants @@ -15,7 +15,7 @@ LL | let _: [u8; if true { size_of::<T>() } else { 3 }]; // error on stable, = help: consider moving this anonymous constant into a `const` function error: unconstrained generic constant - --> $DIR/dependence_lint.rs:13:12 + --> $DIR/dependence_lint.rs:14:12 | LL | let _: [u8; size_of::<*mut T>()]; // error on stable, error with gce | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -23,7 +23,7 @@ LL | let _: [u8; size_of::<*mut T>()]; // error on stable, error with gce = help: try adding a `where` bound using this expression: `where [(); size_of::<*mut T>()]:` error: unconstrained generic constant - --> $DIR/dependence_lint.rs:9:9 + --> $DIR/dependence_lint.rs:10:9 | LL | [0; size_of::<*mut T>()]; // lint on stable, error with `generic_const_exprs` | ^^^^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/const-generics/generic_const_exprs/dependence_lint.rs b/src/test/ui/const-generics/generic_const_exprs/dependence_lint.rs index dcdfd75de..b715e07f8 100644 --- a/src/test/ui/const-generics/generic_const_exprs/dependence_lint.rs +++ b/src/test/ui/const-generics/generic_const_exprs/dependence_lint.rs @@ -1,4 +1,5 @@ // revisions: full gce +// compile-flags: -Zdeduplicate-diagnostics=yes #![cfg_attr(gce, feature(generic_const_exprs))] #![allow(incomplete_features)] 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/eval-try-unify.stderr b/src/test/ui/const-generics/generic_const_exprs/eval-try-unify.stderr index b5719b3fe..8eb1fccc5 100644 --- a/src/test/ui/const-generics/generic_const_exprs/eval-try-unify.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/eval-try-unify.stderr @@ -4,8 +4,8 @@ warning: the feature `generic_const_exprs` is incomplete and may not be safe to LL | #![feature(generic_const_exprs)] | ^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(incomplete_features)]` on by default = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information + = note: `#[warn(incomplete_features)]` on by default warning: 1 warning emitted diff --git a/src/test/ui/const-generics/generic_const_exprs/function-call.rs b/src/test/ui/const-generics/generic_const_exprs/function-call.rs index b5de66621..3c866333d 100644 --- a/src/test/ui/const-generics/generic_const_exprs/function-call.rs +++ b/src/test/ui/const-generics/generic_const_exprs/function-call.rs @@ -1,4 +1,5 @@ // check-pass +// compile-flags: -Zdeduplicate-diagnostics=yes const fn foo<T>() -> usize { // We might instead branch on `std::mem::size_of::<*mut T>() < 8` here, diff --git a/src/test/ui/const-generics/generic_const_exprs/function-call.stderr b/src/test/ui/const-generics/generic_const_exprs/function-call.stderr index 0d8463714..84abfe578 100644 --- a/src/test/ui/const-generics/generic_const_exprs/function-call.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/function-call.stderr @@ -1,12 +1,12 @@ warning: cannot use constants which depend on generic parameters in types - --> $DIR/function-call.rs:14:17 + --> $DIR/function-call.rs:15:17 | LL | let _ = [0; foo::<T>()]; | ^^^^^^^^^^ | - = note: `#[warn(const_evaluatable_unchecked)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> + = note: `#[warn(const_evaluatable_unchecked)]` on by default warning: 1 warning emitted 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-102074.rs b/src/test/ui/const-generics/generic_const_exprs/issue-102074.rs new file mode 100644 index 000000000..66d15cf12 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-102074.rs @@ -0,0 +1,23 @@ +// check-pass +// Checks that the NoopMethodCall lint doesn't call Instance::resolve on unresolved consts + +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +#[derive(Debug, Clone)] +pub struct Aes128CipherKey([u8; Aes128Cipher::KEY_LEN]); + +impl Aes128CipherKey { + pub fn new(key: &[u8; Aes128Cipher::KEY_LEN]) -> Self { + Self(key.clone()) + } +} + +#[derive(Debug, Clone)] +pub struct Aes128Cipher; + +impl Aes128Cipher { + const KEY_LEN: usize = 16; +} + +fn main() {} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-102768.rs b/src/test/ui/const-generics/generic_const_exprs/issue-102768.rs new file mode 100644 index 000000000..7aea0d30d --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-102768.rs @@ -0,0 +1,14 @@ +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +trait X { + type Y<'a>; +} + +const _: () = { + fn f2<'a>(arg: Box<dyn X<Y<1> = &'a ()>>) {} + //~^ ERROR this associated type takes 1 lifetime argument but 0 lifetime arguments + //~| ERROR this associated type takes 0 generic arguments but 1 generic argument +}; + +fn main() {} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-102768.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-102768.stderr new file mode 100644 index 000000000..9deb9b265 --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-102768.stderr @@ -0,0 +1,33 @@ +error[E0107]: this associated type takes 1 lifetime argument but 0 lifetime arguments were supplied + --> $DIR/issue-102768.rs:9:30 + | +LL | fn f2<'a>(arg: Box<dyn X<Y<1> = &'a ()>>) {} + | ^ expected 1 lifetime argument + | +note: associated type defined here, with 1 lifetime parameter: `'a` + --> $DIR/issue-102768.rs:5:10 + | +LL | type Y<'a>; + | ^ -- +help: add missing lifetime argument + | +LL | fn f2<'a>(arg: Box<dyn X<Y<'a, 1> = &'a ()>>) {} + | +++ + +error[E0107]: this associated type takes 0 generic arguments but 1 generic argument was supplied + --> $DIR/issue-102768.rs:9:30 + | +LL | fn f2<'a>(arg: Box<dyn X<Y<1> = &'a ()>>) {} + | ^--- help: remove these generics + | | + | expected 0 generic arguments + | +note: associated type defined here, with 0 generic parameters + --> $DIR/issue-102768.rs:5:10 + | +LL | type Y<'a>; + | ^ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0107`. 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/issue-97047-ice-1.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-1.stderr index b5b2b0e40..1cceaece7 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-1.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-1.stderr @@ -4,8 +4,8 @@ warning: the feature `adt_const_params` is incomplete and may not be safe to use LL | #![feature(adt_const_params, generic_const_exprs)] | ^^^^^^^^^^^^^^^^ | - = note: `#[warn(incomplete_features)]` on by default = note: see issue #95174 <https://github.com/rust-lang/rust/issues/95174> for more information + = note: `#[warn(incomplete_features)]` on by default warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/issue-97047-ice-1.rs:3:30 diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-2.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-2.stderr index 5dfbd87cc..774e842bc 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-2.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-97047-ice-2.stderr @@ -4,8 +4,8 @@ warning: the feature `adt_const_params` is incomplete and may not be safe to use LL | #![feature(adt_const_params, generic_const_exprs)] | ^^^^^^^^^^^^^^^^ | - = note: `#[warn(incomplete_features)]` on by default = note: see issue #95174 <https://github.com/rust-lang/rust/issues/95174> for more information + = note: `#[warn(incomplete_features)]` on by default warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/issue-97047-ice-2.rs:3:30 diff --git a/src/test/ui/const-generics/generic_const_exprs/object-safety-err-where-bounds.stderr b/src/test/ui/const-generics/generic_const_exprs/object-safety-err-where-bounds.stderr index 45c7d835f..440cf457e 100644 --- a/src/test/ui/const-generics/generic_const_exprs/object-safety-err-where-bounds.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/object-safety-err-where-bounds.stderr @@ -4,11 +4,6 @@ error: the trait `Foo` cannot be made into an object LL | fn test(&self) where [u8; bar::<Self>()]: Sized; | ^^^^ | -note: the lint level is defined here - --> $DIR/object-safety-err-where-bounds.rs:3:9 - | -LL | #![deny(where_clauses_object_safety)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443> note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> @@ -19,6 +14,11 @@ LL | trait Foo { LL | fn test(&self) where [u8; bar::<Self>()]: Sized; | ^^^^ ...because method `test` references the `Self` type in its `where` clause = help: consider moving `test` to another trait +note: the lint level is defined here + --> $DIR/object-safety-err-where-bounds.rs:3:9 + | +LL | #![deny(where_clauses_object_safety)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error 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/invariant.stderr b/src/test/ui/const-generics/invariant.stderr index ce0fad104..aabe4c93b 100644 --- a/src/test/ui/const-generics/invariant.stderr +++ b/src/test/ui/const-generics/invariant.stderr @@ -7,10 +7,10 @@ LL | impl SadBee for for<'a> fn(&'a ()) { LL | impl SadBee for fn(&'static ()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `for<'a> fn(&'a ())` | - = note: `#[warn(coherence_leak_check)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105> = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details + = note: `#[warn(coherence_leak_check)]` on by default error[E0308]: mismatched types --> $DIR/invariant.rs:27:5 diff --git a/src/test/ui/const-generics/issue-102124.rs b/src/test/ui/const-generics/issue-102124.rs new file mode 100644 index 000000000..a28f198e9 --- /dev/null +++ b/src/test/ui/const-generics/issue-102124.rs @@ -0,0 +1,20 @@ +// run-pass +// compile-flags: -Zmir-opt-level=3 + +// regression test for #102124 + +const L: usize = 4; + +pub trait Print<const N: usize> { + fn print(&self) -> usize { + N + } +} + +pub struct Printer; +impl Print<L> for Printer {} + +fn main() { + let p = Printer; + assert_eq!(p.print(), 4); +} diff --git a/src/test/ui/const-generics/issue-80471.stderr b/src/test/ui/const-generics/issue-80471.stderr index dbcc0b7b6..b89706710 100644 --- a/src/test/ui/const-generics/issue-80471.stderr +++ b/src/test/ui/const-generics/issue-80471.stderr @@ -4,8 +4,8 @@ warning: the feature `adt_const_params` is incomplete and may not be safe to use LL | #![feature(adt_const_params)] | ^^^^^^^^^^^^^^^^ | - = note: `#[warn(incomplete_features)]` on by default = 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 --> $DIR/issue-80471.rs:10:17 diff --git a/src/test/ui/const-generics/issue-93647.rs b/src/test/ui/const-generics/issue-93647.rs index c1a6bf6e3..806540e17 100644 --- a/src/test/ui/const-generics/issue-93647.rs +++ b/src/test/ui/const-generics/issue-93647.rs @@ -1,6 +1,6 @@ struct X<const N: usize = { (||1usize)() - //~^ ERROR cannot call + //~^ ERROR cannot call non-const closure }>; 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-83466.stderr b/src/test/ui/const-generics/issues/issue-83466.stderr index a60f71ea6..bcfd70639 100644 --- a/src/test/ui/const-generics/issues/issue-83466.stderr +++ b/src/test/ui/const-generics/issues/issue-83466.stderr @@ -7,9 +7,9 @@ LL | fn func<'a, U>(self) -> U { LL | S.func::<'a, 10_u32>() | ^^ | - = note: `#[warn(late_bound_lifetime_arguments)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868> + = note: `#[warn(late_bound_lifetime_arguments)]` on by default error[E0747]: constant provided when a type was expected --> $DIR/issue-83466.rs:11:18 diff --git a/src/test/ui/const-generics/issues/issue-83765.stderr b/src/test/ui/const-generics/issues/issue-83765.stderr index 28ddddf1b..4becf3a36 100644 --- a/src/test/ui/const-generics/issues/issue-83765.stderr +++ b/src/test/ui/const-generics/issues/issue-83765.stderr @@ -1,16 +1,16 @@ -error[E0391]: cycle detected when resolving instance `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>::DIM` +error[E0391]: cycle detected when resolving instance `<LazyUpdim<'_, T, { T::DIM }, DIM> as TensorDimension>::DIM` --> $DIR/issue-83765.rs:5:5 | 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: ...which again requires resolving instance `<LazyUpdim<'_, T, { T::DIM }, DIM> as TensorDimension>::DIM`, completing the cycle +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/issues/issue-88119.rs b/src/test/ui/const-generics/issues/issue-88119.rs index 70dfa7f70..647b0eea8 100644 --- a/src/test/ui/const-generics/issues/issue-88119.rs +++ b/src/test/ui/const-generics/issues/issue-88119.rs @@ -3,6 +3,7 @@ #![allow(incomplete_features)] #![feature(const_trait_impl, generic_const_exprs)] +#[const_trait] trait ConstName { const NAME_BYTES: &'static [u8]; } diff --git a/src/test/ui/const-generics/issues/issue-98629.rs b/src/test/ui/const-generics/issues/issue-98629.rs index fc8666bbc..1d2d3012a 100644 --- a/src/test/ui/const-generics/issues/issue-98629.rs +++ b/src/test/ui/const-generics/issues/issue-98629.rs @@ -1,5 +1,6 @@ #![feature(const_trait_impl)] +#[const_trait] trait Trait { const N: usize; } diff --git a/src/test/ui/const-generics/issues/issue-98629.stderr b/src/test/ui/const-generics/issues/issue-98629.stderr index 535702208..4a248be76 100644 --- a/src/test/ui/const-generics/issues/issue-98629.stderr +++ b/src/test/ui/const-generics/issues/issue-98629.stderr @@ -1,5 +1,5 @@ error[E0046]: not all trait items implemented, missing: `N` - --> $DIR/issue-98629.rs:7:1 + --> $DIR/issue-98629.rs:8:1 | LL | const N: usize; | -------------- `N` from trait diff --git a/src/test/ui/const-generics/min_const_generics/complex-expression.rs b/src/test/ui/const-generics/min_const_generics/complex-expression.rs index 7840989cb..8e667aeba 100644 --- a/src/test/ui/const-generics/min_const_generics/complex-expression.rs +++ b/src/test/ui/const-generics/min_const_generics/complex-expression.rs @@ -1,3 +1,4 @@ +// compile-flags: -Zdeduplicate-diagnostics=yes use std::mem::size_of; fn test<const N: usize>() {} diff --git a/src/test/ui/const-generics/min_const_generics/complex-expression.stderr b/src/test/ui/const-generics/min_const_generics/complex-expression.stderr index bf0d0f352..deabd05a6 100644 --- a/src/test/ui/const-generics/min_const_generics/complex-expression.stderr +++ b/src/test/ui/const-generics/min_const_generics/complex-expression.stderr @@ -1,5 +1,5 @@ error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:9:38 + --> $DIR/complex-expression.rs:10:38 | LL | struct Break0<const N: usize>([u8; { N + 1 }]); | ^ cannot perform const operation using `N` @@ -8,7 +8,7 @@ LL | struct Break0<const N: usize>([u8; { N + 1 }]); = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:12:40 + --> $DIR/complex-expression.rs:13:40 | LL | struct Break1<const N: usize>([u8; { { N } }]); | ^ cannot perform const operation using `N` @@ -17,7 +17,7 @@ LL | struct Break1<const N: usize>([u8; { { N } }]); = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:16:17 + --> $DIR/complex-expression.rs:17:17 | LL | let _: [u8; N + 1]; | ^ cannot perform const operation using `N` @@ -26,7 +26,7 @@ LL | let _: [u8; N + 1]; = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:21:17 + --> $DIR/complex-expression.rs:22:17 | LL | let _ = [0; N + 1]; | ^ cannot perform const operation using `N` @@ -35,7 +35,7 @@ LL | let _ = [0; N + 1]; = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:25:45 + --> $DIR/complex-expression.rs:26:45 | LL | struct BreakTy0<T>(T, [u8; { size_of::<*mut T>() }]); | ^ cannot perform const operation using `T` @@ -44,7 +44,7 @@ LL | struct BreakTy0<T>(T, [u8; { size_of::<*mut T>() }]); = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:28:47 + --> $DIR/complex-expression.rs:29:47 | LL | struct BreakTy1<T>(T, [u8; { { size_of::<*mut T>() } }]); | ^ cannot perform const operation using `T` @@ -53,7 +53,7 @@ LL | struct BreakTy1<T>(T, [u8; { { size_of::<*mut T>() } }]); = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/complex-expression.rs:32:32 + --> $DIR/complex-expression.rs:33:32 | LL | let _: [u8; size_of::<*mut T>() + 1]; | ^ cannot perform const operation using `T` @@ -62,14 +62,14 @@ LL | let _: [u8; size_of::<*mut T>() + 1]; = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions warning: cannot use constants which depend on generic parameters in types - --> $DIR/complex-expression.rs:37:17 + --> $DIR/complex-expression.rs:38:17 | LL | let _ = [0; size_of::<*mut T>() + 1]; | ^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(const_evaluatable_unchecked)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> + = note: `#[warn(const_evaluatable_unchecked)]` on by default error: aborting due to 7 previous errors; 1 warning emitted diff --git a/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.rs b/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.rs index 71d13ca61..e9d868093 100644 --- a/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.rs +++ b/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.rs @@ -1,4 +1,5 @@ // check-pass +// compile-flags: -Zdeduplicate-diagnostics=yes #![allow(dead_code)] fn foo<T>() { diff --git a/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr b/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr index f9f6660f6..8003dfa40 100644 --- a/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr +++ b/src/test/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr @@ -1,15 +1,15 @@ warning: cannot use constants which depend on generic parameters in types - --> $DIR/const-evaluatable-unchecked.rs:5:9 + --> $DIR/const-evaluatable-unchecked.rs:6:9 | LL | [0; std::mem::size_of::<*mut T>()]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(const_evaluatable_unchecked)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> + = note: `#[warn(const_evaluatable_unchecked)]` on by default warning: cannot use constants which depend on generic parameters in types - --> $DIR/const-evaluatable-unchecked.rs:16:21 + --> $DIR/const-evaluatable-unchecked.rs:17:21 | LL | let _ = [0; Self::ASSOC]; | ^^^^^^^^^^^ @@ -18,7 +18,7 @@ LL | let _ = [0; Self::ASSOC]; = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> warning: cannot use constants which depend on generic parameters in types - --> $DIR/const-evaluatable-unchecked.rs:28:21 + --> $DIR/const-evaluatable-unchecked.rs:29:21 | LL | let _ = [0; Self::ASSOC]; | ^^^^^^^^^^^ 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/occurs-check/unify-fixpoint.stderr b/src/test/ui/const-generics/occurs-check/unify-fixpoint.stderr index f9b56bd38..fe3f24a67 100644 --- a/src/test/ui/const-generics/occurs-check/unify-fixpoint.stderr +++ b/src/test/ui/const-generics/occurs-check/unify-fixpoint.stderr @@ -4,8 +4,8 @@ warning: the feature `generic_const_exprs` is incomplete and may not be safe to LL | #![feature(generic_const_exprs)] | ^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(incomplete_features)]` on by default = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information + = note: `#[warn(incomplete_features)]` on by default warning: 1 warning emitted diff --git a/src/test/ui/const-generics/occurs-check/unused-substs-2.rs b/src/test/ui/const-generics/occurs-check/unused-substs-2.rs index 9a73f1a53..9b1212694 100644 --- a/src/test/ui/const-generics/occurs-check/unused-substs-2.rs +++ b/src/test/ui/const-generics/occurs-check/unused-substs-2.rs @@ -1,7 +1,7 @@ #![feature(generic_const_exprs)] #![allow(incomplete_features)] -// The goal is is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(_#1t)` subst. +// The goal is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(_#1t)` subst. // // If we are then able to infer `ty::Infer(TyVar(_#1t) := Ty<ct>` we introduced an // artificial inference cycle. diff --git a/src/test/ui/const-generics/occurs-check/unused-substs-3.rs b/src/test/ui/const-generics/occurs-check/unused-substs-3.rs index 0d38bd393..d5aeab47e 100644 --- a/src/test/ui/const-generics/occurs-check/unused-substs-3.rs +++ b/src/test/ui/const-generics/occurs-check/unused-substs-3.rs @@ -1,7 +1,7 @@ #![feature(generic_const_exprs)] #![allow(incomplete_features)] -// The goal is is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(_#1t)` subst. +// The goal is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(_#1t)` subst. // // If we are then able to infer `ty::Infer(TyVar(_#1t) := Ty<ct>` we introduced an // artificial inference cycle. 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 |