Merge #6893

6893: Move to upstream `macro_rules!` model r=matklad a=jonas-schievink

This changes `macro_rules!` from being treated as a macro invocation to being a first-class item. It also disallows using an additional ident argument for regular macros, so `m! ident(...);` now fails to parse.

This matches upstream Rust, and makes the code somewhat simpler by removing repeated "is this a `macro_rules!` call" checks. It will also simplify allowing visibilities on macros, which is currently being proposed in https://github.com/rust-lang/rust/pull/78166.

Co-authored-by: Jonas Schievink <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/syntax/src/parsing/text_tree_sink.rs b/crates/syntax/src/parsing/text_tree_sink.rs
index 49842177a..ce27c3dd9 100644
--- a/crates/syntax/src/parsing/text_tree_sink.rs
+++ b/crates/syntax/src/parsing/text_tree_sink.rs
@@ -147,8 +147,8 @@ fn n_attached_trivias<'a>(
     trivias: impl Iterator<Item = (SyntaxKind, &'a str)>,
 ) -> usize {
     match kind {
-        MACRO_CALL | CONST | TYPE_ALIAS | STRUCT | ENUM | VARIANT | FN | TRAIT | MODULE
-        | RECORD_FIELD | STATIC | USE => {
+        MACRO_CALL | MACRO_RULES | CONST | TYPE_ALIAS | STRUCT | ENUM | VARIANT | FN | TRAIT
+        | MODULE | RECORD_FIELD | STATIC | USE => {
             let mut res = 0;
             let mut trivias = trivias.enumerate().peekable();