1 files changed, 6 insertions, 6 deletions
diff --git a/src/Components/ParameterDefinition.php b/src/Components/ParameterDefinition.php
index 831ee4b..9294273 100644
--- a/src/Components/ParameterDefinition.php
+++ b/src/Components/ParameterDefinition.php
@@ -1,8 +1,8 @@
 <?php
-
 /**
  * The definition of a parameter of a function or procedure.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser\Components;
 
@@ -63,11 +63,11 @@ class ParameterDefinition extends Component
      *
      * @return ParameterDefinition[]
      */
-    public static function parse(Parser $parser, TokensList $list, array $options = array())
+    public static function parse(Parser $parser, TokensList $list, array $options = [])
     {
-        $ret = array();
+        $ret = [];
 
-        $expr = new self();
+        $expr = new static();
 
         /**
          * The state of the parser.
@@ -127,7 +127,7 @@ class ParameterDefinition extends Component
                 $state = 3;
             } elseif ($state === 3) {
                 $ret[] = $expr;
-                $expr = new self();
+                $expr = new static();
                 if ($token->value === ',') {
                     $state = 1;
                 } elseif ($token->value === ')') {
@@ -153,7 +153,7 @@ class ParameterDefinition extends Component
      *
      * @return string
      */
-    public static function build($component, array $options = array())
+    public static function build($component, array $options = [])
     {
         if (is_array($component)) {
             return '(' . implode(', ', $component) . ')';