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, 10 insertions, 4 deletions

diff --git a/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast b/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast
index 4cfd1bce4..9ad5b12b8 100644
--- a/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast
+++ b/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast
@@ -17,14 +17,17 @@ [email protected]
           [email protected] "bin"
   [email protected]
     [email protected] "/"
-  MACRO_CALL@32..41
+  MACRO_CALL@32..35
     [email protected]
       [email protected]
         [email protected]
           [email protected] "env"
-    [email protected] " "
-    [email protected]
-      [email protected] "rusti"
+  [email protected] " "
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "rusti"
   [email protected] "\n"
 error 23..23: expected `[`
 error 23..23: expected an item
@@ -35,5 +38,8 @@ error 31..31: expected `{`, `[`, `(`
 error 31..31: expected SEMICOLON
 error 31..31: expected an item
 error 35..35: expected BANG
+error 35..35: expected `{`, `[`, `(`
+error 35..35: expected SEMICOLON
+error 41..41: expected BANG
 error 41..41: expected `{`, `[`, `(`
 error 41..41: expected SEMICOLON