diff options
Diffstat (limited to 'src/test')
5 files changed, 79 insertions, 0 deletions
diff --git a/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.rs b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.rs new file mode 100644 index 00000000000..0cfb93d4668 --- /dev/null +++ b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.rs @@ -0,0 +1,16 @@ +#![feature(arbitrary_enum_discriminant, core_intrinsics)] + +extern crate core; +use core::intrinsics::discriminant_value; + +#[repr(usize)] +enum MyWeirdOption<T> { + None = 0, + Some(T) = std::mem::size_of::<T>(), + //~^ ERROR constant expression depends on a generic parameter +} + +fn main() { + assert_eq!(discriminant_value(&MyWeirdOption::<u8>::None), 0); + assert_eq!(discriminant_value(&MyWeirdOption::Some(0u8)), 1); +} diff --git a/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.stderr b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.stderr new file mode 100644 index 00000000000..91d488a07cc --- /dev/null +++ b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.stderr @@ -0,0 +1,10 @@ +error: constant expression depends on a generic parameter + --> $DIR/issue-70453-generics-in-discr-ice-2.rs:9:15 + | +LL | Some(T) = std::mem::size_of::<T>(), + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this may fail depending on what value the parameter takes + +error: aborting due to previous error + diff --git a/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice.rs b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice.rs new file mode 100644 index 00000000000..676f1115dde --- /dev/null +++ b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice.rs @@ -0,0 +1,17 @@ +#![feature(core_intrinsics)] + +extern crate core; +use core::intrinsics::discriminant_value; + +#[repr(usize)] +enum MyWeirdOption<T> { +//~^ ERROR parameter `T` is never used + None = 0, + Some = std::mem::size_of::<T>(), + //~^ ERROR constant expression depends on a generic parameter +} + +fn main() { + assert_eq!(discriminant_value(&MyWeirdOption::<u8>::None), 0); + assert_eq!(discriminant_value(&MyWeirdOption::<u8>::Some), 1); +} diff --git a/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice.stderr b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice.stderr new file mode 100644 index 00000000000..52e58aa4c6d --- /dev/null +++ b/src/test/ui/enum-discriminant/issue-70453-generics-in-discr-ice.stderr @@ -0,0 +1,19 @@ +error: constant expression depends on a generic parameter + --> $DIR/issue-70453-generics-in-discr-ice.rs:10:12 + | +LL | Some = std::mem::size_of::<T>(), + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this may fail depending on what value the parameter takes + +error[E0392]: parameter `T` is never used + --> $DIR/issue-70453-generics-in-discr-ice.rs:7:20 + | +LL | enum MyWeirdOption<T> { + | ^ unused parameter + | + = help: consider removing `T`, referring to it in a field, or using a marker such as `std::marker::PhantomData` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0392`. diff --git a/src/test/ui/enum-discriminant/issue-70453-polymorphic-ctfe.rs b/src/test/ui/enum-discriminant/issue-70453-polymorphic-ctfe.rs new file mode 100644 index 00000000000..05911a9a303 --- /dev/null +++ b/src/test/ui/enum-discriminant/issue-70453-polymorphic-ctfe.rs @@ -0,0 +1,17 @@ +// run-pass + +#![feature(arbitrary_enum_discriminant, core_intrinsics)] + +extern crate core; +use core::intrinsics::discriminant_value; + +#[repr(usize)] +enum MyWeirdOption<T> { + None = 0, + Some(T) = core::mem::size_of::<*mut T>(), +} + +fn main() { + assert_eq!(discriminant_value(&MyWeirdOption::<()>::None), 0); + assert_eq!(discriminant_value(&MyWeirdOption::Some(())), core::mem::size_of::<usize>() as u64); +} |