fix bare pseudo class or element selector

Author: g-plane

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Unreleased
 
 - Fixed parsing unclosed attribute selector (such as `a[href`).
+- Fixed parsing bare pseudo class or element selectors.
 
 ## v2.11.3
 

parser.d.ts

@@ -34,6 +34,8 @@ type PseudoClassesFirstChar =
 
 type Split<S> = S extends `${string},` // invalid selector
   ? unknown
+  : S extends ''
+  ? ''
   : SplitRec<S>
 type SplitRec<S, Acc = never> = S extends `${infer Left},${infer Right}`
   ? SplitRec<Right, Acc | Left>

parser.test.ts

@@ -355,6 +355,8 @@ type _Tests = [
       Element
     >
   >,
+  Expect<Equal<ParseSelector<':func(arg)'>, Element>>,
+  Expect<Equal<ParseSelector<'::func(arg)'>, Element>>,
 ]
 
 declare function delegate<