From d7b30bef7ea482a3ded64b3ab41246ad363ee73d Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Fri, 8 Aug 2025 23:03:34 -0700
Subject: [PATCH] Expand documentation of `GlobDelegation`

I discovered this via research through the git log, and I want to leave
additional guidance for future macro spelunkers.
---
 compiler/rustc_expand/src/base.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs
index c47c076e56ef..205aa47c1a02 100644
--- a/compiler/rustc_expand/src/base.rs
+++ b/compiler/rustc_expand/src/base.rs
@@ -776,6 +776,8 @@ pub enum SyntaxExtensionKind {
     ),
 
     /// A glob delegation.
+    ///
+    /// This is for delegated function implementations, and has nothing to do with glob imports.
     GlobDelegation(Arc<dyn GlobDelegationExpander + sync::DynSync + sync::DynSend>),
 }