Merge #2628

2628: Add macro 2.0 support in parser r=matklad a=edwin0cheng

This PR added a new syntax kind : `MACRO_DEF` and a keyword `MACRO_KW`

there are two syntax for declarative macro 2.0 :
1. Normal : `macro m { ($i:ident) => {} }` , which handle similar to legacy one. 
2. Call like: `macro m($i:ident) {}`, it produces a single token tree which have two child token trees : `($i:ident)` and `{}`

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

1 files changed, 7 insertions, 1 deletions

diff --git a/crates/ra_parser/src/syntax_kind/generated.rs b/crates/ra_parser/src/syntax_kind/generated.rs
index fe0fcdb33..afe4ce51a 100644
--- a/crates/ra_parser/src/syntax_kind/generated.rs
+++ b/crates/ra_parser/src/syntax_kind/generated.rs
@@ -100,6 +100,7 @@ pub enum SyntaxKind {
     TRY_KW,
     BOX_KW,
     AWAIT_KW,
+    MACRO_KW,
     AUTO_KW,
     DEFAULT_KW,
     EXISTENTIAL_KW,
@@ -136,6 +137,7 @@ pub enum SyntaxKind {
     TYPE_ALIAS_DEF,
     MACRO_CALL,
     TOKEN_TREE,
+    MACRO_DEF,
     PAREN_TYPE,
     TUPLE_TYPE,
     NEVER_TYPE,
@@ -251,7 +253,7 @@ impl SyntaxKind {
             | SUPER_KW | IN_KW | WHERE_KW | FOR_KW | LOOP_KW | WHILE_KW | CONTINUE_KW
             | BREAK_KW | IF_KW | ELSE_KW | MATCH_KW | CONST_KW | STATIC_KW | MUT_KW | UNSAFE_KW
             | TYPE_KW | REF_KW | LET_KW | MOVE_KW | RETURN_KW | TRY_KW | BOX_KW | AWAIT_KW
-            | AUTO_KW | DEFAULT_KW | EXISTENTIAL_KW | UNION_KW => true,
+            | MACRO_KW | AUTO_KW | DEFAULT_KW | EXISTENTIAL_KW | UNION_KW => true,
             _ => false,
         }
     }
@@ -314,6 +316,7 @@ impl SyntaxKind {
             "try" => TRY_KW,
             "box" => BOX_KW,
             "await" => AWAIT_KW,
+            "macro" => MACRO_KW,
             _ => return None,
         };
         Some(kw)
@@ -628,6 +631,9 @@ macro_rules! T {
     ( await ) => {
         $crate::SyntaxKind::AWAIT_KW
     };
+    ( macro ) => {
+        $crate::SyntaxKind::MACRO_KW
+    };
     ( auto ) => {
         $crate::SyntaxKind::AUTO_KW
     };