Untyped function literal isn't detected

ntrel · ntrel · commit 86a562f41d86 · 2025-07-07T14:12:55.000+01:00
diff --git a/std/traits.d b/std/traits.d
@@ -7682,6 +7682,8 @@ template isCallable(alias callable)
     static assert( isCallable!g);
     static assert( isCallable!S1);
     static assert( isCallable!S2);
+
+    static assert(!isCallable!((x) {}));
 }
 
 /// Overloaded functions and function templates instantiable with `!()`.

Original file line number	Diff line number	Diff line change
`@@ -7682,6 +7682,8 @@ template isCallable(alias callable)`
`7682`	`7682`	`static assert( isCallable!g);`
`7683`	`7683`	`static assert( isCallable!S1);`
`7684`	`7684`	`static assert( isCallable!S2);`
	`7685`	`+`
	`7686`	`+ static assert(!isCallable!((x) {}));`
`7685`	`7687`	`}`
`7686`	`7688`
`7687`	`7689`	/// Overloaded functions and function templates instantiable with `!()`.