[FEATURE] Provide line number in exception message

... for mismatched parentheses in selector.

Author: JakeQZ

CHANGELOG.md

@@ -10,6 +10,8 @@ Please also have a look at our
 
 ### Added
 
+- Provide line number in exception message for mismatched parentheses in
+  selector (#1435)
 - Add support for CSS container queries (#1400)
 
 ### Changed

src/RuleSet/DeclarationBlock.php

@@ -329,7 +329,12 @@ private static function parseSelector(ParserState $parserState, array &$comments
                 case ')':
                     if (!\is_string($stringWrapperCharacter)) {
                         if ($functionNestingLevel <= 0) {
-                            throw new UnexpectedTokenException('anything but', ')');
+                            throw new UnexpectedTokenException(
+                                'anything but',
+                                ')',
+                                'literal',
+                                $parserState->currentLine()
+                            );
                         }
                         --$functionNestingLevel;
                     }
@@ -351,7 +356,7 @@ private static function parseSelector(ParserState $parserState, array &$comments
         }
 
         if ($functionNestingLevel !== 0) {
-            throw new UnexpectedTokenException(')', $nextCharacter);
+            throw new UnexpectedTokenException(')', $nextCharacter, 'literal', $parserState->currentLine());
         }
 
         $selector = \trim(\implode('', $selectorParts));

tests/Unit/RuleSet/DeclarationBlockTest.php

@@ -232,11 +232,11 @@ public static function provideInvalidSelectorAndExpectedExceptionMessage(): arra
     {
         return [
             'no selector' => ['', 'Token “selector” (literal) not found. Got “{”. [line no: 1]'],
-            'lone `(`' => ['(', 'Token “)” (literal) not found. Got “{”.'],
-            'lone `)`' => [')', 'Token “anything but” (literal) not found. Got “)”.'],
+            'lone `(`' => ['(', 'Token “)” (literal) not found. Got “{”. [line no: 1]'],
+            'lone `)`' => [')', 'Token “anything but” (literal) not found. Got “)” [line no: 1].'],
             'lone `,`' => [',', 'Token “selector” (literal) not found. Got “,”. [line no: 1]'],
-            'unclosed `(`' => [':not(#your-mug', 'Token “)” (literal) not found. Got “{”.'],
-            'extra `)`' => [':not(#your-mug))', 'Token “anything but” (literal) not found. Got “)”.'],
+            'unclosed `(`' => [':not(#your-mug', 'Token “)” (literal) not found. Got “{” [line no: 1].'],
+            'extra `)`' => [':not(#your-mug))', 'Token “anything but” (literal) not found. Got “)” [line no: 1].'],
             '`,` missing left operand' => [', a', 'Token “selector” (literal) not found. Got “,”. [line no: 1]'],
             '`,` missing right operand' => ['a,', 'Token “selector” (literal) not found. Got “{”. [line no: 1]'],
         ];