From 16f7c3ea916fd16d9d94d6703c3af38a32515f98 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 4 May 2021 18:20:10 +0300
Subject: minor: unconfuse myself about macro def vs macro rules

---
 crates/hir_expand/src/db.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'crates/hir_expand')

diff --git a/crates/hir_expand/src/db.rs b/crates/hir_expand/src/db.rs
index 1e4b0cc19..b77795b2e 100644
--- a/crates/hir_expand/src/db.rs
+++ b/crates/hir_expand/src/db.rs
@@ -27,10 +27,15 @@ const TOKEN_LIMIT: usize = 524288;
 
 #[derive(Debug, Clone, Eq, PartialEq)]
 pub enum TokenExpander {
+    /// Old-style `macro_rules`.
     MacroRules(mbe::MacroRules),
+    /// AKA macros 2.0.
     MacroDef(mbe::MacroDef),
+    /// Stuff like `line!` and `file!`.
     Builtin(BuiltinFnLikeExpander),
+    /// `derive(Copy)` and such.
     BuiltinDerive(BuiltinDeriveExpander),
+    /// The thing we love the most here in rust-analyzer -- procedural macros.
     ProcMacro(ProcMacroExpander),
 }
 
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