N°5809 Update nikic/php-parser from 4.14.0 to 4.18.0

lib/nikic/php-parser/lib/PhpParser/Lexer/Emulative.php

@@ -14,6 +14,7 @@ use PhpParser\Lexer\TokenEmulator\FnTokenEmulator;
 use PhpParser\Lexer\TokenEmulator\MatchTokenEmulator;
 use PhpParser\Lexer\TokenEmulator\NullsafeTokenEmulator;
 use PhpParser\Lexer\TokenEmulator\NumericLiteralSeparatorEmulator;
+use PhpParser\Lexer\TokenEmulator\ReadonlyFunctionTokenEmulator;
 use PhpParser\Lexer\TokenEmulator\ReadonlyTokenEmulator;
 use PhpParser\Lexer\TokenEmulator\ReverseEmulator;
 use PhpParser\Lexer\TokenEmulator\TokenEmulator;
@@ -24,6 +25,7 @@ class Emulative extends Lexer
     const PHP_7_4 = '7.4dev';
     const PHP_8_0 = '8.0dev';
     const PHP_8_1 = '8.1dev';
+    const PHP_8_2 = '8.2dev';
 
     /** @var mixed[] Patches used to reverse changes introduced in the code */
     private $patches = [];
@@ -41,7 +43,7 @@ class Emulative extends Lexer
      */
     public function __construct(array $options = [])
     {
-        $this->targetPhpVersion = $options['phpVersion'] ?? Emulative::PHP_8_1;
+        $this->targetPhpVersion = $options['phpVersion'] ?? Emulative::PHP_8_2;
         unset($options['phpVersion']);
 
         parent::__construct($options);
@@ -57,6 +59,7 @@ class Emulative extends Lexer
             new EnumTokenEmulator(),
             new ReadonlyTokenEmulator(),
             new ExplicitOctalEmulator(),
+            new ReadonlyFunctionTokenEmulator(),
         ];
 
         // Collect emulators that are relevant for the PHP version we're running

lib/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/KeywordEmulator.php

@@ -33,7 +33,7 @@ abstract class KeywordEmulator extends TokenEmulator
 
     /**
      * @param mixed[] $tokens
-     * @return mixed[]|null
+     * @return array|string|null
      */
     private function getPreviousNonSpaceToken(array $tokens, int $start)
     {

lib/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/ReadonlyFunctionTokenEmulator.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+/*
+ * In PHP 8.1, "readonly(" was special cased in the lexer in order to support functions with
+ * name readonly. In PHP 8.2, this may conflict with readonly properties having a DNF type. For
+ * this reason, PHP 8.2 instead treats this as T_READONLY and then handles it specially in the
+ * parser. This emulator only exists to handle this special case, which is skipped by the
+ * PHP 8.1 ReadonlyTokenEmulator.
+ */
+class ReadonlyFunctionTokenEmulator extends KeywordEmulator {
+    public function getKeywordString(): string {
+        return 'readonly';
+    }
+
+    public function getKeywordToken(): int {
+        return \T_READONLY;
+    }
+
+    public function getPhpVersion(): string {
+        return Emulative::PHP_8_2;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array {
+        // Don't bother
+        return $tokens;
+    }
+}

lib/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/ReadonlyTokenEmulator.php

@@ -20,4 +20,17 @@ final class ReadonlyTokenEmulator extends KeywordEmulator
     {
         return \T_READONLY;
     }
-}
+
+    protected function isKeywordContext(array $tokens, int $pos): bool
+    {
+        if (!parent::isKeywordContext($tokens, $pos)) {
+            return false;
+        }
+        // Support "function readonly("
+        return !(isset($tokens[$pos + 1]) &&
+                 ($tokens[$pos + 1][0] === '(' ||
+                  ($tokens[$pos + 1][0] === \T_WHITESPACE &&
+                   isset($tokens[$pos + 2]) &&
+                   $tokens[$pos + 2][0] === '(')));
+    }
+}