adds feature gating of `no_coverage` at either crate- or function-level

2 files changed, 21 insertions, 0 deletions

diff --git a/src/test/ui/feature-gates/feature-gate-no_coverage.rs b/src/test/ui/feature-gates/feature-gate-no_coverage.rs
new file mode 100644
index 00000000000..c6b79f9a431
--- /dev/null
+++ b/src/test/ui/feature-gates/feature-gate-no_coverage.rs
@@ -0,0 +1,8 @@
+#![crate_type = "lib"]
+
+#[no_coverage]
+#[feature(no_coverage)] // does not have to be enabled before `#[no_coverage]`
+fn no_coverage_is_enabled_on_this_function() {}
+
+#[no_coverage] //~ ERROR the `#[no_coverage]` attribute is an experimental feature
+fn requires_feature_no_coverage() {}
diff --git a/src/test/ui/feature-gates/feature-gate-no_coverage.stderr b/src/test/ui/feature-gates/feature-gate-no_coverage.stderr
new file mode 100644
index 00000000000..04627be4aaf
--- /dev/null
+++ b/src/test/ui/feature-gates/feature-gate-no_coverage.stderr
@@ -0,0 +1,13 @@
+error[E0658]: the `#[no_coverage]` attribute is an experimental feature
+  --> $DIR/feature-gate-no_coverage.rs:7:1
+   |
+LL | #[no_coverage]
+   | ^^^^^^^^^^^^^^
+   |
+   = note: see issue #84605 <https://github.com/rust-lang/rust/issues/84605> for more information
+   = help: add `#![feature(no_coverage)]` to the crate attributes to enable
+   = help: or, alternatively, add `#[feature(no_coverage)]` to the function
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0658`.