diff options
Diffstat (limited to 'src/test/ui/box/into-boxed-slice-fail.rs')
-rw-r--r-- | src/test/ui/box/into-boxed-slice-fail.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/box/into-boxed-slice-fail.rs b/src/test/ui/box/into-boxed-slice-fail.rs new file mode 100644 index 000000000..49dbb170f --- /dev/null +++ b/src/test/ui/box/into-boxed-slice-fail.rs @@ -0,0 +1,14 @@ +#![feature(box_into_boxed_slice)] + +use std::boxed::Box; +use std::fmt::Debug; +fn main() { + let boxed_slice = Box::new([1,2,3]) as Box<[u8]>; + let _ = Box::into_boxed_slice(boxed_slice); + //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time + //~^^ ERROR the size for values of type `[u8]` cannot be known at compilation time + let boxed_trait: Box<dyn Debug> = Box::new(5u8); + let _ = Box::into_boxed_slice(boxed_trait); + //~^ ERROR the size for values of type `dyn Debug` cannot be known at compilation time + //~^^ ERROR the size for values of type `dyn Debug` cannot be known at compilation time +} |