diff options
Diffstat (limited to 'tests')
4 files changed, 70 insertions, 0 deletions
diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.rs b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.rs new file mode 100644 index 00000000000..fd52fc35541 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.rs @@ -0,0 +1,18 @@ +// checks that when we relate a `Expr::Binop` we also relate the types of the +// const arguments. +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +struct Bar<const B: bool>; + +const fn make_generic(_: usize, a: bool) -> bool { + a +} + +fn foo<const N: usize>() -> Bar<{ make_generic(N, true == false) }> { + Bar::<{ make_generic(N, 1_u8 == 0_u8) }> + //~^ error: mismatched types + //~| error: unconstrained generic constant +} + +fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr new file mode 100644 index 00000000000..ba824e84a5a --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr @@ -0,0 +1,20 @@ +error[E0308]: mismatched types + --> $DIR/relate_binop_arg_tys.rs:13:5 + | +LL | Bar::<{ make_generic(N, 1_u8 == 0_u8) }> + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{ make_generic(N, true == false) }`, found `{ make_generic(N, 1_u8 == 0_u8) }` + | + = note: expected constant `{ make_generic(N, true == false) }` + found constant `{ make_generic(N, 1_u8 == 0_u8) }` + +error: unconstrained generic constant + --> $DIR/relate_binop_arg_tys.rs:13:11 + | +LL | Bar::<{ make_generic(N, 1_u8 == 0_u8) }> + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = help: try adding a `where` bound using this expression: `where [(); { make_generic(N, 1_u8 == 0_u8) }]:` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.rs b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.rs new file mode 100644 index 00000000000..bef9d4b9e99 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.rs @@ -0,0 +1,12 @@ +// checks that when we relate a `Expr::Cast` we also relate the type of the +// const argument. +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +fn foo<const N: usize>() -> [(); (true as usize) + N] { + [(); (1_u8 as usize) + N] + //~^ error: mismatched types + //~| error: unconstrained generic constant +} + +fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr new file mode 100644 index 00000000000..d3ba870a2d7 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr @@ -0,0 +1,20 @@ +error[E0308]: mismatched types + --> $DIR/relate_cast_arg_ty.rs:7:5 + | +LL | [(); (1_u8 as usize) + N] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `(true as usize) + N`, found `(1_u8 as usize) + N` + | + = note: expected constant `(true as usize) + N` + found constant `(1_u8 as usize) + N` + +error: unconstrained generic constant + --> $DIR/relate_cast_arg_ty.rs:7:10 + | +LL | [(); (1_u8 as usize) + N] + | ^^^^^^^^^^^^^^^^^^^ + | + = help: try adding a `where` bound using this expression: `where [(); (1_u8 as usize) + N]:` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. |