Ruleset: decouple "supported tokenizers" deprecation from setting the value

Author: jrfnl

src/Ruleset.php

@@ -1472,30 +1472,31 @@ public function populateTokenListeners()
 
             $tokenizers = [];
             $vars       = get_class_vars($sniffClass);
-            if (empty($vars['supportedTokenizers']) === false) {
-                foreach ($vars['supportedTokenizers'] as $tokenizer) {
-                    $tokenizers[$tokenizer] = $tokenizer;
+            if (empty($vars['supportedTokenizers']) === false
+                && $isDeprecated === false
+                && in_array('PHP', $vars['supportedTokenizers'], true) === false
+            ) {
+                if (in_array('CSS', $vars['supportedTokenizers'], true) === true
+                    || in_array('JS', $vars['supportedTokenizers'], true) === true
+                ) {
+                    $message = 'Scanning CSS/JS files is deprecated and support will be removed in PHP_CodeSniffer 4.0.'.PHP_EOL;
+                } else {
+                    // Just in case someone has an integration with a custom tokenizer.
+                    $message = 'Support for custom tokenizers will be removed in PHP_CodeSniffer 4.0.'.PHP_EOL;
                 }
 
-                if ($isDeprecated === false
-                    && in_array('PHP', $vars['supportedTokenizers'], true) === false
-                ) {
-                    if (in_array('CSS', $vars['supportedTokenizers'], true) === true
-                        || in_array('JS', $vars['supportedTokenizers'], true) === true
-                    ) {
-                        $message = 'Scanning CSS/JS files is deprecated and support will be removed in PHP_CodeSniffer 4.0.'.PHP_EOL;
-                    } else {
-                        // Just in case someone has an integration with a custom tokenizer.
-                        $message = 'Support for custom tokenizers will be removed in PHP_CodeSniffer 4.0.'.PHP_EOL;
-                    }
+                $message .= 'The %s sniff is listening for %s.';
+                $message  = sprintf($message, $sniffCode, implode(', ', $vars['supportedTokenizers']));
+                $this->msgCache->add($message, MessageCollector::DEPRECATED);
+            }
 
-                    $message .= 'The %s sniff is listening for %s.';
-                    $message  = sprintf($message, $sniffCode, implode(', ', $vars['supportedTokenizers']));
-                    $this->msgCache->add($message, MessageCollector::DEPRECATED);
+            if (isset($vars['supportedTokenizers']) === true) {
+                foreach ($vars['supportedTokenizers'] as $tokenizer) {
+                    $tokenizers[$tokenizer] = $tokenizer;
                 }
             } else {
                 $tokenizers = ['PHP' => 'PHP'];
-            }//end if
+            }
 
             $tokens = $this->sniffs[$sniffClass]->register();
             if (is_array($tokens) === false) {