Merge #8044

8044: Fix macro expansion for statements w/o semicolon r=edwin0cheng a=edwin0cheng

Fixes  #7845

And up `ungrammer` to  1.12.

cc @jonas-schievink 

bors r+

Co-authored-by: Edwin Cheng <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/crates/hir_def/src/item_tree.rs b/crates/hir_def/src/item_tree.rs
index 09bcb10dc..86239d903 100644
--- a/crates/hir_def/src/item_tree.rs
+++ b/crates/hir_def/src/item_tree.rs
@@ -110,6 +110,11 @@ impl ItemTree {
                     // still need to collect inner items.
                     ctx.lower_inner_items(e.syntax())
                 },
+                ast::ExprStmt(stmt) => {
+                    // Macros can expand to stmt. We return an empty item tree in this case, but
+                    // still need to collect inner items.
+                    ctx.lower_inner_items(stmt.syntax())
+                },
                 _ => {
                     panic!("cannot create item tree from {:?} {}", syntax, syntax);
                 },