ast: Add metadata attributes on Items

TODO: decide what other places attributes belong
2024-02-27 23:31:49 -06:00
parent 9806e95247
commit 325498ac8b
4 changed files with 102 additions and 5 deletions
--- a/grammar.ebnf
+++ b/grammar.ebnf
@@ -8,9 +8,13 @@ Visibility  = "pub"? ;
 File        = Item* EOI ;


-Item        = Visibility ItemKind ;
+Attrs       = ('#' '[' (Meta ',') Meta? ']')* ;
+Meta        = Identifier ('=' Literal | '(' (Literal ',')* Literal? ')')? ;
+
+
+Item        = Attrs* Visibility ItemKind ;
 ItemKind    = Const    | Static | Module 
-                | Function | Struct | Enum 
+            | Function | Struct | Enum 
            | Alias    | Impl ;