Updated attr grammar

2026-05-05 02:46:32 +02:00
parent 0af357df97
commit d9c20467a4
2 changed files with 21 additions and 95 deletions
@@ -19,18 +19,25 @@ var_decl =  { type_expr ~ mutable? ~ identifier }

 // ================= TOP LEVEL =================

-attribute_list = { sharp ~ "[" ~ attribute ~ ("," ~ attribute)* ~ "]" }
-
-attribute = { static_path ~ attribute_args? }
-
-attribute_args = { "(" ~ (attr_expr ~ ("," ~ attr_expr)*)? ~ ")" }
-
-attr_expr = {
-    (identifier ~ "=" ~ primary)
-  | primary
+attribute = {
+    "#" ~ "[" ~ (structured_style | list_style | key_value_style | simple_style) ~ "]"
 }

-top_level = _{ attribute_list* ~ (import | function_decl | struct_decl) }
+// Simple: #[test]
+simple_style = { identifier }
+
+// Key-Value: #[crate_type = "lib"]
+key_value_style = { identifier ~ "=" ~ primary }
+
+// #[derive(PartialEq, PartialOrd)]
+list_style = { identifier ~ "(" ~ identifier ~ ("," ~ identifier)* ~ ","? ~ ")" }
+
+// #[link(name = "readline")]
+structured_style = { identifier ~ "(" ~ pair ~ ("," ~ pair)* ~ ","? ~ ")" }
+
+pair = { identifier ~ "=" ~ primary }
+
+top_level = _{ attribute* ~ (import | function_decl | struct_decl) }

 import = { sharp ~ "include" ~ "<" ~ static_path ~ ">" }