Resolve TODO about macro 2.0 def

Author: Veetaha

crates/ra_syntax/src/ast/generated/nodes.rs

@@ -2537,17 +2537,15 @@ impl MetaItem {
     pub fn attr_input(&self) -> Option<AttrInput> { support::child(&self.syntax) }
     pub fn nested_meta_items(&self) -> AstChildren<MetaItem> { support::children(&self.syntax) }
 }
-/// Macro definition.
-///
+/// Macro 2.0 definition.
+/// Their syntax is still WIP by rustc team...
 /// ```
 /// ❰
-///     macro_rules! foo {
-///         ($bar:tt) => {$bar}
-///     }
+///     macro foo { }
 /// ❱
 /// ```
 ///
-/// [Reference](https://doc.rust-lang.org/reference/macros-by-example.html)
+/// [RFC](https://github.com/rust-lang/rfcs/blob/master/text/1584-macros.md)
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct MacroDef {
     pub(crate) syntax: SyntaxNode,

xtask/src/ast_src.rs

@@ -2049,19 +2049,15 @@ pub(crate) const AST_SRC: AstSrc = AstSrc {
             Path, T![=], AttrInput, nested_meta_items: [MetaItem]
         }
 
-        // TODO: is this a special case of `MacroCall` where `Name` = `macro_rules`?
-        // It doesn't seem this ast node is used anywhere
-        /// Macro definition.
-        ///
+        /// Macro 2.0 definition.
+        /// Their syntax is still WIP by rustc team...
         /// ```
         /// ❰
-        ///     macro_rules! foo {
-        ///         ($bar:tt) => {$bar}
-        ///     }
+        ///     macro foo { }
         /// ❱
         /// ```
         ///
-        /// [Reference](https://doc.rust-lang.org/reference/macros-by-example.html)
+        /// [RFC](https://github.com/rust-lang/rfcs/blob/master/text/1584-macros.md)
         struct MacroDef {
             Name, TokenTree
         }