From 2ceb13ed44fb81fb7c7ff8c32824baee9afb5fb7 Mon Sep 17 00:00:00 2001
From: Nick Treleaven <ntrel002@gmail.com>
Date: Wed, 19 Mar 2025 14:20:45 +0000
Subject: [PATCH] std.traits.TemplateOf doesn't return void for non-template
 functions #10527

---
 std/traits.d | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/std/traits.d b/std/traits.d
index f230aa3b7..9bdd9775f 100644
--- a/std/traits.d
+++ b/std/traits.d
@@ -4728,10 +4728,7 @@ It will return `void` if a symbol without a template is given.
 alias TemplateOf(alias T : Base!Args, alias Base, Args...) = Base;
 
 /// ditto
-alias TemplateOf(T : Base!Args, alias Base, Args...) = Base;
-
-/// ditto
-alias TemplateOf(T) = void;
+alias TemplateOf(alias T) = void;
 
 ///
 @safe unittest
@@ -4768,6 +4765,10 @@ alias TemplateOf(T) = void;
 {
     static assert(is(TemplateOf!(int[]) == void));
     static assert(is(TemplateOf!bool == void));
+
+    // https://github.com/dlang/phobos/issues/10527
+    static void foo() {}
+    static assert(is(TemplateOf!foo == void));
 }
 
 /**