Improve performance.

Author: umulmrum

src/DataSource/FileDataSource.php

@@ -35,7 +35,7 @@ class FileDataSource extends AbstractDataSource
      *
      * @throws DataSourceException
      */
-    public function __construct(string $filePath, int $bufferSize = 4096)
+    public function __construct(string $filePath, int $bufferSize = 2048)
     {
         if (false === \file_exists($filePath)) {
             throw new DataSourceException('File does not exist: '.$filePath);

src/State/AbstractKeywordState.php

@@ -12,7 +12,7 @@ abstract class AbstractKeywordState implements StateInterface
      */
     public function run(DataSourceInterface $dataSource)
     {
-        $position = 0;
+        $position = 1;
         $word = $this->getWord();
         $wordLength = \mb_strlen($word);
         while (null !== $char = $dataSource->read()) {

src/State/ValueState.php

@@ -37,15 +37,12 @@ public function run(DataSourceInterface $dataSource)
                         $state = States::$ARRAY;
                         break;
                     case 't':
-                        $dataSource->rewind();
                         $state = States::$TRUE;
                         break;
                     case 'f':
-                        $dataSource->rewind();
                         $state = States::$FALSE;
                         break;
                     case 'n':
-                        $dataSource->rewind();
                         $state = States::$NULL;
                         break;
                     default: