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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/feature-gates/issue-43106-gating-of-proc_macro_derive.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/feature-gates/issue-43106-gating-of-proc_macro_derive.rs')
-rw-r--r--src/test/ui/feature-gates/issue-43106-gating-of-proc_macro_derive.rs34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/test/ui/feature-gates/issue-43106-gating-of-proc_macro_derive.rs b/src/test/ui/feature-gates/issue-43106-gating-of-proc_macro_derive.rs
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+++ b/src/test/ui/feature-gates/issue-43106-gating-of-proc_macro_derive.rs
@@ -0,0 +1,34 @@
+// At time of authorship, #[proc_macro_derive = "2500"] will emit an
+// error when it occurs on a mod (apart from crate-level), but will
+// not descend further into the mod for other occurrences of the same
+// error.
+//
+// This file sits on its own because the "weird" occurrences here
+// signal errors, making it incompatible with the "warnings only"
+// nature of issue-43106-gating-of-builtin-attrs.rs
+
+#[proc_macro_derive()]
+//~^ ERROR the `#[proc_macro_derive]` attribute may only be used on bare functions
+mod proc_macro_derive1 {
+ mod inner { #![proc_macro_derive()] }
+ // (no error issued here if there was one on outer module)
+}
+
+mod proc_macro_derive2 {
+ mod inner { #![proc_macro_derive()] }
+ //~^ ERROR the `#[proc_macro_derive]` attribute may only be used on bare functions
+
+ #[proc_macro_derive()] fn f() { }
+ //~^ ERROR the `#[proc_macro_derive]` attribute is only usable with crates of the `proc-macro`
+
+ #[proc_macro_derive()] struct S;
+ //~^ ERROR the `#[proc_macro_derive]` attribute may only be used on bare functions
+
+ #[proc_macro_derive()] type T = S;
+ //~^ ERROR the `#[proc_macro_derive]` attribute may only be used on bare functions
+
+ #[proc_macro_derive()] impl S { }
+ //~^ ERROR the `#[proc_macro_derive]` attribute may only be used on bare functions
+}
+
+fn main() {}