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-rw-r--r--crates/hir_def/src/nameres/collector.rs3
-rw-r--r--crates/hir_def/src/nameres/tests/macros.rs7
2 files changed, 9 insertions, 1 deletions
diff --git a/crates/hir_def/src/nameres/collector.rs b/crates/hir_def/src/nameres/collector.rs
index 100e25ffc..c8cd04264 100644
--- a/crates/hir_def/src/nameres/collector.rs
+++ b/crates/hir_def/src/nameres/collector.rs
@@ -1229,9 +1229,10 @@ impl ModCollector<'_, '_> {
1229 } else { 1229 } else {
1230 let derive = attrs.by_key("proc_macro_derive"); 1230 let derive = attrs.by_key("proc_macro_derive");
1231 if let Some(arg) = derive.tt_values().next() { 1231 if let Some(arg) = derive.tt_values().next() {
1232 if let [TokenTree::Leaf(Leaf::Ident(trait_name))] = &*arg.token_trees { 1232 if let [TokenTree::Leaf(Leaf::Ident(trait_name)), ..] = &*arg.token_trees {
1233 trait_name.as_name() 1233 trait_name.as_name()
1234 } else { 1234 } else {
1235 log::trace!("malformed `#[proc_macro_derive]`: {}", arg);
1235 return; 1236 return;
1236 } 1237 }
1237 } else { 1238 } else {
diff --git a/crates/hir_def/src/nameres/tests/macros.rs b/crates/hir_def/src/nameres/tests/macros.rs
index 0851c3b7d..305fca0f9 100644
--- a/crates/hir_def/src/nameres/tests/macros.rs
+++ b/crates/hir_def/src/nameres/tests/macros.rs
@@ -688,13 +688,20 @@ fn resolves_proc_macros() {
688 pub fn derive_macro(_item: TokenStream) -> TokenStream { 688 pub fn derive_macro(_item: TokenStream) -> TokenStream {
689 TokenStream 689 TokenStream
690 } 690 }
691
692 #[proc_macro_derive(AnotherTrait, attributes(helper_attr))]
693 pub fn derive_macro_2(_item: TokenStream) -> TokenStream {
694 TokenStream
695 }
691 ", 696 ",
692 expect![[r#" 697 expect![[r#"
693 crate 698 crate
699 AnotherTrait: m
694 DummyTrait: m 700 DummyTrait: m
695 TokenStream: t v 701 TokenStream: t v
696 attribute_macro: v m 702 attribute_macro: v m
697 derive_macro: v 703 derive_macro: v
704 derive_macro_2: v
698 function_like_macro: v m 705 function_like_macro: v m
699 "#]], 706 "#]],
700 ); 707 );