Aggiornato Composer

vendor/nikic/php-parser/lib/PhpParser/ParserFactory.php

@@ -2,43 +2,41 @@
 
 namespace PhpParser;
 
-class ParserFactory
-{
-    const PREFER_PHP7 = 1;
-    const PREFER_PHP5 = 2;
-    const ONLY_PHP7 = 3;
-    const ONLY_PHP5 = 4;
+use PhpParser\Parser\Php7;
+use PhpParser\Parser\Php8;
+
+class ParserFactory {
+    /**
+     * Create a parser targeting the given version on a best-effort basis. The parser will generally
+     * accept code for the newest supported version, but will try to accommodate code that becomes
+     * invalid in newer versions or changes in interpretation.
+     */
+    public function createForVersion(PhpVersion $version): Parser {
+        if ($version->isHostVersion()) {
+            $lexer = new Lexer();
+        } else {
+            $lexer = new Lexer\Emulative($version);
+        }
+        if ($version->id >= 80000) {
+            return new Php8($lexer, $version);
+        }
+        return new Php7($lexer, $version);
+    }
 
     /**
-     * Creates a Parser instance, according to the provided kind.
-     *
-     * @param int        $kind  One of ::PREFER_PHP7, ::PREFER_PHP5, ::ONLY_PHP7 or ::ONLY_PHP5
-     * @param Lexer|null $lexer Lexer to use. Defaults to emulative lexer when not specified
-     * @param array      $parserOptions Parser options. See ParserAbstract::__construct() argument
-     *
-     * @return Parser The parser instance
+     * Create a parser targeting the newest version supported by this library. Code for older
+     * versions will be accepted if there have been no relevant backwards-compatibility breaks in
+     * PHP.
      */
-    public function create(int $kind, Lexer $lexer = null, array $parserOptions = []) : Parser {
-        if (null === $lexer) {
-            $lexer = new Lexer\Emulative();
-        }
-        switch ($kind) {
-            case self::PREFER_PHP7:
-                return new Parser\Multiple([
-                    new Parser\Php7($lexer, $parserOptions), new Parser\Php5($lexer, $parserOptions)
-                ]);
-            case self::PREFER_PHP5:
-                return new Parser\Multiple([
-                    new Parser\Php5($lexer, $parserOptions), new Parser\Php7($lexer, $parserOptions)
-                ]);
-            case self::ONLY_PHP7:
-                return new Parser\Php7($lexer, $parserOptions);
-            case self::ONLY_PHP5:
-                return new Parser\Php5($lexer, $parserOptions);
-            default:
-                throw new \LogicException(
-                    'Kind must be one of ::PREFER_PHP7, ::PREFER_PHP5, ::ONLY_PHP7 or ::ONLY_PHP5'
-                );
-        }
+    public function createForNewestSupportedVersion(): Parser {
+        return $this->createForVersion(PhpVersion::getNewestSupported());
+    }
+
+    /**
+     * Create a parser targeting the host PHP version, that is the PHP version we're currently
+     * running on. This parser will not use any token emulation.
+     */
+    public function createForHostVersion(): Parser {
+        return $this->createForVersion(PhpVersion::getHostVersion());
     }
 }