diff options
Diffstat (limited to 'tests')
14 files changed, 287 insertions, 3 deletions
diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.rs new file mode 100644 index 00000000000..0da68ae7573 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.rs @@ -0,0 +1,13 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +fn check(_: impl std::marker::ConstParamTy) {} + +fn main() { + check(main); //~ error: `fn() {main}` can't be used as a const parameter type + check(|| {}); //~ error: `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` can't be used as a const parameter type + check(main as fn()); //~ error: `fn()` can't be used as a const parameter type + check(&mut ()); //~ error: `&mut ()` can't be used as a const parameter type + check(&mut () as *mut ()); //~ error: `*mut ()` can't be used as a const parameter type + check(&() as *const ()); //~ error: `*const ()` can't be used as a const parameter type +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr new file mode 100644 index 00000000000..de5704ee429 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr @@ -0,0 +1,87 @@ +error[E0277]: `fn() {main}` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:7:11 + | +LL | check(main); + | ----- ^^^^ the trait `ConstParamTy` is not implemented for fn item `fn() {main}` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:8:11 + | +LL | check(|| {}); + | ----- ^^^^^ the trait `ConstParamTy` is not implemented for closure `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `fn()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:9:11 + | +LL | check(main as fn()); + | ----- ^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `fn()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `&mut ()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:10:11 + | +LL | check(&mut ()); + | ----- ^^^^^^^ the trait `ConstParamTy` is not implemented for `&mut ()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `*mut ()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:11:11 + | +LL | check(&mut () as *mut ()); + | ----- ^^^^^^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `*mut ()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `*const ()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:12:11 + | +LL | check(&() as *const ()); + | ----- ^^^^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `*const ()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.rs new file mode 100644 index 00000000000..b0e3b13cc1e --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.rs @@ -0,0 +1,12 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct NotParam; + +fn check<T: std::marker::ConstParamTy>() {} + +fn main() { + check::<[NotParam; 0]>(); + //~^ error: `NotParam` can't be used as a const parameter type +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr new file mode 100644 index 00000000000..ef55242df87 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr @@ -0,0 +1,16 @@ +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_bad_empty_array.rs:10:13 + | +LL | check::<[NotParam; 0]>(); + | ^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `[NotParam; 0]` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_bad_empty_array.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.rs new file mode 100644 index 00000000000..e4dc76703a2 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.rs @@ -0,0 +1,13 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct NotParam; + +fn check<T: std::marker::ConstParamTy + ?Sized>() {} + +fn main() { + check::<&NotParam>(); //~ error: `NotParam` can't be used as a const parameter type + check::<[NotParam]>(); //~ error: `NotParam` can't be used as a const parameter type + check::<[NotParam; 17]>(); //~ error: `NotParam` can't be used as a const parameter type +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr new file mode 100644 index 00000000000..86d1c94e87f --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr @@ -0,0 +1,42 @@ +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:10:13 + | +LL | check::<&NotParam>(); + | ^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `&NotParam` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy + ?Sized>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:11:13 + | +LL | check::<[NotParam]>(); + | ^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `[NotParam]` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy + ?Sized>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:12:13 + | +LL | check::<[NotParam; 17]>(); + | ^^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `[NotParam; 17]` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy + ?Sized>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs new file mode 100644 index 00000000000..a1b711a3024 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs @@ -0,0 +1,43 @@ +// check-pass +#![allow(incomplete_features)] +#![feature(adt_const_params)] +use std::marker::ConstParamTy; + +#[derive(PartialEq, Eq)] +struct S<T> { + field: u8, + gen: T, +} + +impl<T: ConstParamTy> ConstParamTy for S<T> {} + +fn check<T: ConstParamTy + ?Sized>() {} + +fn main() { + check::<u8>(); + check::<u16>(); + check::<u32>(); + check::<u64>(); + check::<u128>(); + + check::<i8>(); + check::<i16>(); + check::<i32>(); + check::<i64>(); + check::<i128>(); + + check::<char>(); + check::<bool>(); + check::<str>(); + + check::<&u8>(); + check::<&str>(); + check::<[usize]>(); + check::<[u16; 0]>(); + check::<[u8; 42]>(); + + check::<S<u8>>(); + check::<S<[&[bool]; 8]>>(); + + // FIXME: test tuples +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.rs new file mode 100644 index 00000000000..07fd243737e --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.rs @@ -0,0 +1,13 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct NotParam; + +#[derive(PartialEq, Eq)] +struct CantParam(NotParam); + +impl std::marker::ConstParamTy for CantParam {} +//~^ error: the trait `ConstParamTy` cannot be implemented for this type + +fn main() {} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.stderr new file mode 100644 index 00000000000..c8e065848b1 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.stderr @@ -0,0 +1,12 @@ +error[E0204]: the trait `ConstParamTy` cannot be implemented for this type + --> $DIR/const_param_ty_impl_bad_field.rs:10:36 + | +LL | struct CantParam(NotParam); + | -------- this field does not implement `ConstParamTy` +LL | +LL | impl std::marker::ConstParamTy for CantParam {} + | ^^^^^^^^^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0204`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs new file mode 100644 index 00000000000..17ef396164e --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs @@ -0,0 +1,17 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct ImplementsConstParamTy; +impl std::marker::ConstParamTy for ImplementsConstParamTy {} + +struct CantParam(ImplementsConstParamTy); + +impl std::marker::ConstParamTy for CantParam {} +//~^ error: the type `CantParam` does not `#[derive(Eq)]` + +fn check<T: std::marker::ConstParamTy>() {} + +fn main() { + check::<ImplementsConstParamTy>(); +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr new file mode 100644 index 00000000000..ca5abf5e254 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr @@ -0,0 +1,12 @@ +error[E0277]: the type `CantParam` does not `#[derive(Eq)]` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:10:36 + | +LL | impl std::marker::ConstParamTy for CantParam {} + | ^^^^^^^^^ the trait `StructuralEq` is not implemented for `CantParam` + | +note: required by a bound in `ConstParamTy` + --> $SRC_DIR/core/src/marker.rs:LL:COL + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/nested-type.rs b/tests/ui/const-generics/nested-type.rs index 5240f5c3b0b..ff95018065a 100644 --- a/tests/ui/const-generics/nested-type.rs +++ b/tests/ui/const-generics/nested-type.rs @@ -3,7 +3,7 @@ #![cfg_attr(full, feature(adt_const_params))] #![cfg_attr(full, allow(incomplete_features))] -struct Foo<const N: [u8; { //[min]~ ERROR `[u8; _]` is forbidden +struct Foo<const N: [u8; { struct Foo<const N: usize>; impl<const N: usize> Foo<N> { @@ -15,5 +15,9 @@ struct Foo<const N: [u8; { //[min]~ ERROR `[u8; _]` is forbidden Foo::<17>::value() //~^ ERROR cannot call non-const fn }]>; +//[min]~^^^^^^^^^^^^ ERROR `[u8; { + +// N.B. it is important that the comment above is not inside the array length, +// otherwise it may check for itself, instead of the actual error fn main() {} diff --git a/tests/ui/fmt/format-string-error.rs b/tests/ui/fmt/format-string-error.rs index eae4f3cb547..9b436e2c479 100644 --- a/tests/ui/fmt/format-string-error.rs +++ b/tests/ui/fmt/format-string-error.rs @@ -17,7 +17,7 @@ fn main() { let _ = format!("}"); //~^ ERROR invalid format string: unmatched `}` found let _ = format!("{\\}"); - //~^ ERROR invalid format string: expected `'}'`, found `'\\'` + //~^ ERROR invalid format string: expected `'}'`, found `'\'` let _ = format!("\n\n\n{\n\n\n"); //~^ ERROR invalid format string let _ = format!(r###" diff --git a/tests/ui/parser/issues/issue-62913.rs b/tests/ui/parser/issues/issue-62913.rs index 0db06f636c3..a55ef5ac710 100644 --- a/tests/ui/parser/issues/issue-62913.rs +++ b/tests/ui/parser/issues/issue-62913.rs @@ -1,4 +1,4 @@ "\u\\" //~^ ERROR incorrect unicode escape sequence //~| ERROR invalid trailing slash in literal -//~| ERROR expected item, found `"\u\\"` +//~| ERROR expected item, found `"\u\"` |