diff options
| -rw-r--r-- | src/test/ui/nll/issue-55825-const-fn.rs | 8 | ||||
| -rw-r--r-- | src/test/ui/nll/issue-55825-const-fn.stderr | 12 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-55825-const-fn.rs b/src/test/ui/nll/issue-55825-const-fn.rs new file mode 100644 index 00000000000..c9efccd15b7 --- /dev/null +++ b/src/test/ui/nll/issue-55825-const-fn.rs @@ -0,0 +1,8 @@ +// Regression test for issue #55825 +// Tests that we don't emit a spurious warning in NLL mode + +#![feature(nll)] + +const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() } //~ ERROR const + +fn main() { } diff --git a/src/test/ui/nll/issue-55825-const-fn.stderr b/src/test/ui/nll/issue-55825-const-fn.stderr new file mode 100644 index 00000000000..9af5180343b --- /dev/null +++ b/src/test/ui/nll/issue-55825-const-fn.stderr @@ -0,0 +1,12 @@ +error[E0658]: trait objects in const fn are unstable + --> $DIR/issue-55825-const-fn.rs:6:32 + | +LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() } + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information + = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0658`. |