Merge #7088

7088: Smarter bracketed `use` diagnostic r=lnicola a=AdnoC

Closes https://github.com/rust-analyzer/rust-analyzer/issues/4531

Makes it so that if a bracketed use statement contains a comment inside the braces, no "Unnecessary braces in use statement" diagnostic is shown.

Co-authored-by: AdnoC <[email protected]>

1 files changed, 8 insertions, 0 deletions

diff --git a/crates/syntax/src/ast/node_ext.rs b/crates/syntax/src/ast/node_ext.rs
index c45cb514a..2aa472fb4 100644
--- a/crates/syntax/src/ast/node_ext.rs
+++ b/crates/syntax/src/ast/node_ext.rs
@@ -193,6 +193,14 @@ impl ast::UseTreeList {
             .and_then(ast::UseTree::cast)
             .expect("UseTreeLists are always nested in UseTrees")
     }
+
+    pub fn has_inner_comment(&self) -> bool {
+        self.syntax()
+            .children_with_tokens()
+            .filter_map(|it| it.into_token())
+            .find_map(ast::Comment::cast)
+            .is_some()
+    }
 }
 
 impl ast::Impl {