* add phpunit as a dev dependency

 * add some basic tests for UrlHelper::rewrite_relative()
 * fix UrlHelper::rewrite_relative() to work better on non-absolute
   relative URL paths

178 files changed, 5846 insertions, 0 deletions

diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Arg.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Arg.php
new file mode 100644
index 000000000..bcf130e68
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Arg.php
@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node\VariadicPlaceholder;
+use PhpParser\NodeAbstract;
+
+class Arg extends NodeAbstract
+{
+    /** @var Identifier|null Parameter name (for named parameters) */
+    public $name;
+    /** @var Expr Value to pass */
+    public $value;
+    /** @var bool Whether to pass by ref */
+    public $byRef;
+    /** @var bool Whether to unpack the argument */
+    public $unpack;
+
+    /**
+     * Constructs a function call argument node.
+     *
+     * @param Expr  $value      Value to pass
+     * @param bool  $byRef      Whether to pass by ref
+     * @param bool  $unpack     Whether to unpack the argument
+     * @param array $attributes Additional attributes
+     * @param Identifier|null $name Parameter name (for named parameters)
+     */
+    public function __construct(
+        Expr $value, bool $byRef = false, bool $unpack = false, array $attributes = [],
+        Identifier $name = null
+    ) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->value = $value;
+        $this->byRef = $byRef;
+        $this->unpack = $unpack;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'value', 'byRef', 'unpack'];
+    }
+    
+    public function getType() : string {
+        return 'Arg';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Attribute.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Attribute.php
new file mode 100644
index 000000000..c96f66e51
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Attribute.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+use PhpParser\NodeAbstract;
+
+class Attribute extends NodeAbstract
+{
+    /** @var Name Attribute name */
+    public $name;
+
+    /** @var Arg[] Attribute arguments */
+    public $args;
+
+    /**
+     * @param Node\Name $name       Attribute name
+     * @param Arg[]     $args       Attribute arguments
+     * @param array     $attributes Additional node attributes
+     */
+    public function __construct(Name $name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'args'];
+    }
+
+    public function getType() : string {
+        return 'Attribute';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/AttributeGroup.php b/vendor/nikic/php-parser/lib/PhpParser/Node/AttributeGroup.php
new file mode 100644
index 000000000..613bfc413
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/AttributeGroup.php
@@ -0,0 +1,29 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+use PhpParser\NodeAbstract;
+
+class AttributeGroup extends NodeAbstract
+{
+    /** @var Attribute[] Attributes */
+    public $attrs;
+
+    /**
+     * @param Attribute[] $attrs PHP attributes
+     * @param array $attributes Additional node attributes
+     */
+    public function __construct(array $attrs, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->attrs = $attrs;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrs'];
+    }
+
+    public function getType() : string {
+        return 'AttributeGroup';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/ComplexType.php b/vendor/nikic/php-parser/lib/PhpParser/Node/ComplexType.php
new file mode 100644
index 000000000..9505532ae
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/ComplexType.php
@@ -0,0 +1,14 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+/**
+ * This is a base class for complex types, including nullable types and union types.
+ *
+ * It does not provide any shared behavior and exists only for type-checking purposes.
+ */
+abstract class ComplexType extends NodeAbstract
+{
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Const_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Const_.php
new file mode 100644
index 000000000..b69eb16fa
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Const_.php
@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class Const_ extends NodeAbstract
+{
+    /** @var Identifier Name */
+    public $name;
+    /** @var Expr Value */
+    public $value;
+
+    /** @var Name Namespaced name (if using NameResolver) */
+    public $namespacedName;
+
+    /**
+     * Constructs a const node for use in class const and const statements.
+     *
+     * @param string|Identifier $name       Name
+     * @param Expr              $value      Value
+     * @param array             $attributes Additional attributes
+     */
+    public function __construct($name, Expr $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'value'];
+    }
+    
+    public function getType() : string {
+        return 'Const';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr.php
new file mode 100644
index 000000000..6cf4df223
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+abstract class Expr extends NodeAbstract
+{
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayDimFetch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayDimFetch.php
new file mode 100644
index 000000000..71694478e
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayDimFetch.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ArrayDimFetch extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var null|Expr Array index / dim */
+    public $dim;
+
+    /**
+     * Constructs an array index fetch node.
+     *
+     * @param Expr      $var        Variable
+     * @param null|Expr $dim        Array index / dim
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $dim = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->dim = $dim;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'dim'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ArrayDimFetch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayItem.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayItem.php
new file mode 100644
index 000000000..1b078f821
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayItem.php
@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ArrayItem extends Expr
+{
+    /** @var null|Expr Key */
+    public $key;
+    /** @var Expr Value */
+    public $value;
+    /** @var bool Whether to assign by reference */
+    public $byRef;
+    /** @var bool Whether to unpack the argument */
+    public $unpack;
+
+    /**
+     * Constructs an array item node.
+     *
+     * @param Expr      $value      Value
+     * @param null|Expr $key        Key
+     * @param bool      $byRef      Whether to assign by reference
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $value, Expr $key = null, bool $byRef = false, array $attributes = [], bool $unpack = false) {
+        $this->attributes = $attributes;
+        $this->key = $key;
+        $this->value = $value;
+        $this->byRef = $byRef;
+        $this->unpack = $unpack;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['key', 'value', 'byRef', 'unpack'];
+    }
+
+    public function getType() : string {
+        return 'Expr_ArrayItem';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Array_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Array_.php
new file mode 100644
index 000000000..e6eaa2834
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Array_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Array_ extends Expr
+{
+    // For use in "kind" attribute
+    const KIND_LONG = 1;  // array() syntax
+    const KIND_SHORT = 2; // [] syntax
+
+    /** @var (ArrayItem|null)[] Items */
+    public $items;
+
+    /**
+     * Constructs an array node.
+     *
+     * @param (ArrayItem|null)[] $items      Items of the array
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $items = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->items = $items;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['items'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Array';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php
new file mode 100644
index 000000000..c273fb7ee
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php
@@ -0,0 +1,79 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+use PhpParser\Node\FunctionLike;
+
+class ArrowFunction extends Expr implements FunctionLike
+{
+    /** @var bool */
+    public $static;
+
+    /** @var bool */
+    public $byRef;
+
+    /** @var Node\Param[] */
+    public $params = [];
+
+    /** @var null|Node\Identifier|Node\Name|Node\ComplexType */
+    public $returnType;
+
+    /** @var Expr */
+    public $expr;
+    /** @var Node\AttributeGroup[] */
+    public $attrGroups;
+
+    /**
+     * @param array $subNodes   Array of the following optional subnodes:
+     *                          'static'     => false   : Whether the closure is static
+     *                          'byRef'      => false   : Whether to return by reference
+     *                          'params'     => array() : Parameters
+     *                          'returnType' => null    : Return type
+     *                          'expr'       => Expr    : Expression body
+     *                          'attrGroups' => array() : PHP attribute groups
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->static = $subNodes['static'] ?? false;
+        $this->byRef = $subNodes['byRef'] ?? false;
+        $this->params = $subNodes['params'] ?? [];
+        $returnType = $subNodes['returnType'] ?? null;
+        $this->returnType = \is_string($returnType) ? new Node\Identifier($returnType) : $returnType;
+        $this->expr = $subNodes['expr'];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'static', 'byRef', 'params', 'returnType', 'expr'];
+    }
+
+    public function returnsByRef() : bool {
+        return $this->byRef;
+    }
+
+    public function getParams() : array {
+        return $this->params;
+    }
+
+    public function getReturnType() {
+        return $this->returnType;
+    }
+
+    public function getAttrGroups() : array {
+        return $this->attrGroups;
+    }
+
+    /**
+     * @return Node\Stmt\Return_[]
+     */
+    public function getStmts() : array {
+        return [new Node\Stmt\Return_($this->expr)];
+    }
+
+    public function getType() : string {
+        return 'Expr_ArrowFunction';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Assign.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Assign.php
new file mode 100644
index 000000000..cf9e6e82b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Assign.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Assign extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an assignment node.
+     *
+     * @param Expr  $var        Variable
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Assign';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp.php
new file mode 100644
index 000000000..bce8604f1
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+abstract class AssignOp extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a compound assignment operation node.
+     *
+     * @param Expr  $var        Variable
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'expr'];
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseAnd.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseAnd.php
new file mode 100644
index 000000000..420284cdc
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseAnd.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class BitwiseAnd extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_BitwiseAnd';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseOr.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseOr.php
new file mode 100644
index 000000000..481ad3bbc
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseOr.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class BitwiseOr extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_BitwiseOr';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseXor.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseXor.php
new file mode 100644
index 000000000..f41d4c8e7
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseXor.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class BitwiseXor extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_BitwiseXor';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Coalesce.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Coalesce.php
new file mode 100644
index 000000000..c0e9b316c
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Coalesce.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Coalesce extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Coalesce';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Concat.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Concat.php
new file mode 100644
index 000000000..ac1682078
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Concat.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Concat extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Concat';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Div.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Div.php
new file mode 100644
index 000000000..f1fcfc09a
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Div.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Div extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Div';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Minus.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Minus.php
new file mode 100644
index 000000000..82ef4517b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Minus.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Minus extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Minus';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mod.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mod.php
new file mode 100644
index 000000000..be3b4a0ad
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mod.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Mod extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Mod';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mul.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mul.php
new file mode 100644
index 000000000..5c196c3bc
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mul.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Mul extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Mul';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Plus.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Plus.php
new file mode 100644
index 000000000..dd101c61c
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Plus.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Plus extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Plus';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Pow.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Pow.php
new file mode 100644
index 000000000..5e1307d1d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Pow.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Pow extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Pow';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftLeft.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftLeft.php
new file mode 100644
index 000000000..b8f88269b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftLeft.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class ShiftLeft extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_ShiftLeft';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftRight.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftRight.php
new file mode 100644
index 000000000..e0cc67b7f
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftRight.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class ShiftRight extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_ShiftRight';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignRef.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignRef.php
new file mode 100644
index 000000000..de3c644c3
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignRef.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class AssignRef extends Expr
+{
+    /** @var Expr Variable reference is assigned to */
+    public $var;
+    /** @var Expr Variable which is referenced */
+    public $expr;
+
+    /**
+     * Constructs an assignment node.
+     *
+     * @param Expr  $var        Variable
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_AssignRef';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp.php
new file mode 100644
index 000000000..d9c582b0d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp.php
@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+abstract class BinaryOp extends Expr
+{
+    /** @var Expr The left hand side expression */
+    public $left;
+    /** @var Expr The right hand side expression */
+    public $right;
+
+    /**
+     * Constructs a binary operator node.
+     *
+     * @param Expr  $left       The left hand side expression
+     * @param Expr  $right      The right hand side expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $left, Expr $right, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->left = $left;
+        $this->right = $right;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['left', 'right'];
+    }
+
+    /**
+     * Get the operator sigil for this binary operation.
+     *
+     * In the case there are multiple possible sigils for an operator, this method does not
+     * necessarily return the one used in the parsed code.
+     *
+     * @return string
+     */
+    abstract public function getOperatorSigil() : string;
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseAnd.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseAnd.php
new file mode 100644
index 000000000..d907393bf
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseAnd.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseAnd extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '&';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BitwiseAnd';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseOr.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseOr.php
new file mode 100644
index 000000000..d92069f32
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseOr.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseOr extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '|';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BitwiseOr';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseXor.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseXor.php
new file mode 100644
index 000000000..40fa94f88
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseXor.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseXor extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '^';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BitwiseXor';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanAnd.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanAnd.php
new file mode 100644
index 000000000..4c3c9e9b1
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanAnd.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BooleanAnd extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '&&';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BooleanAnd';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanOr.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanOr.php
new file mode 100644
index 000000000..5ad417279
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanOr.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BooleanOr extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '||';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BooleanOr';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Coalesce.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Coalesce.php
new file mode 100644
index 000000000..b8cf6f459
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Coalesce.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Coalesce extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '??';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Coalesce';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Concat.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Concat.php
new file mode 100644
index 000000000..9a8d9873c
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Concat.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Concat extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '.';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Concat';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Div.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Div.php
new file mode 100644
index 000000000..d38df0db4
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Div.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Div extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '/';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Div';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Equal.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Equal.php
new file mode 100644
index 000000000..e7b11dc82
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Equal.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Equal extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '==';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Equal';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Greater.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Greater.php
new file mode 100644
index 000000000..da01f7a10
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Greater.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Greater extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '>';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Greater';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/GreaterOrEqual.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/GreaterOrEqual.php
new file mode 100644
index 000000000..d677502cf
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/GreaterOrEqual.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class GreaterOrEqual extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '>=';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_GreaterOrEqual';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Identical.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Identical.php
new file mode 100644
index 000000000..3d96285c6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Identical.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Identical extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '===';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Identical';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalAnd.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalAnd.php
new file mode 100644
index 000000000..2a3afd548
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalAnd.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class LogicalAnd extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return 'and';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_LogicalAnd';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalOr.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalOr.php
new file mode 100644
index 000000000..21507dba6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalOr.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class LogicalOr extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return 'or';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_LogicalOr';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalXor.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalXor.php
new file mode 100644
index 000000000..261c6a910
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalXor.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class LogicalXor extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return 'xor';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_LogicalXor';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Minus.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Minus.php
new file mode 100644
index 000000000..54b3c6e90
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Minus.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Minus extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '-';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Minus';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mod.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mod.php
new file mode 100644
index 000000000..103404040
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mod.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Mod extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '%';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Mod';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mul.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mul.php
new file mode 100644
index 000000000..b82d0b2fc
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mul.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Mul extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '*';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Mul';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotEqual.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotEqual.php
new file mode 100644
index 000000000..51075da56
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotEqual.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class NotEqual extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '!=';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_NotEqual';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotIdentical.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotIdentical.php
new file mode 100644
index 000000000..fa4050e05
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotIdentical.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class NotIdentical extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '!==';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_NotIdentical';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Plus.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Plus.php
new file mode 100644
index 000000000..62f022998
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Plus.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Plus extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '+';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Plus';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Pow.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Pow.php
new file mode 100644
index 000000000..572a1e8e4
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Pow.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Pow extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '**';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Pow';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftLeft.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftLeft.php
new file mode 100644
index 000000000..4e70b4ef0
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftLeft.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class ShiftLeft extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '<<';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_ShiftLeft';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftRight.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftRight.php
new file mode 100644
index 000000000..45acbd046
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftRight.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class ShiftRight extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '>>';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_ShiftRight';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Smaller.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Smaller.php
new file mode 100644
index 000000000..3cb8e7e0d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Smaller.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Smaller extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '<';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Smaller';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/SmallerOrEqual.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/SmallerOrEqual.php
new file mode 100644
index 000000000..83e8e214d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/SmallerOrEqual.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class SmallerOrEqual extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '<=';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_SmallerOrEqual';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Spaceship.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Spaceship.php
new file mode 100644
index 000000000..8c6d787f6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Spaceship.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Spaceship extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '<=>';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Spaceship';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BitwiseNot.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BitwiseNot.php
new file mode 100644
index 000000000..ed44984be
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BitwiseNot.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class BitwiseNot extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a bitwise not node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_BitwiseNot';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BooleanNot.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BooleanNot.php
new file mode 100644
index 000000000..bf27e9f65
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BooleanNot.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class BooleanNot extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a boolean not node.
+     *
+     * @param Expr $expr       Expression
+     * @param array               $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_BooleanNot';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/CallLike.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/CallLike.php
new file mode 100644
index 000000000..78e1cf349
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/CallLike.php
@@ -0,0 +1,39 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Arg;
+use PhpParser\Node\Expr;
+use PhpParser\Node\VariadicPlaceholder;
+
+abstract class CallLike extends Expr {
+    /**
+     * Return raw arguments, which may be actual Args, or VariadicPlaceholders for first-class
+     * callables.
+     *
+     * @return array<Arg|VariadicPlaceholder>
+     */
+    abstract public function getRawArgs(): array;
+
+    /**
+     * Returns whether this call expression is actually a first class callable.
+     */
+    public function isFirstClassCallable(): bool {
+        foreach ($this->getRawArgs() as $arg) {
+            if ($arg instanceof VariadicPlaceholder) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Assert that this is not a first-class callable and return only ordinary Args.
+     *
+     * @return Arg[]
+     */
+    public function getArgs(): array {
+        assert(!$this->isFirstClassCallable());
+        return $this->getRawArgs();
+    }
+}
\ No newline at end of file
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast.php
new file mode 100644
index 000000000..36769d4fc
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast.php
@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+abstract class Cast extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a cast node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Array_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Array_.php
new file mode 100644
index 000000000..57cc473b6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Array_.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class Array_ extends Cast
+{
+    public function getType() : string {
+        return 'Expr_Cast_Array';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Bool_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Bool_.php
new file mode 100644
index 000000000..04eb4af58
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Bool_.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class Bool_ extends Cast
+{
+    public function getType() : string {
+        return 'Expr_Cast_Bool';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Double.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Double.php
new file mode 100644
index 000000000..891ba5f87
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Double.php
@@ -0,0 +1,17 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class Double extends Cast
+{
+    // For use in "kind" attribute
+    const KIND_DOUBLE = 1; // "double" syntax
+    const KIND_FLOAT = 2;  // "float" syntax
+    const KIND_REAL = 3; // "real" syntax
+
+    public function getType() : string {
+        return 'Expr_Cast_Double';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Int_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Int_.php
new file mode 100644
index 000000000..01ed594bd
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Int_.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class Int_ extends Cast
+{
+    public function getType() : string {
+        return 'Expr_Cast_Int';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Object_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Object_.php
new file mode 100644
index 000000000..163752be8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Object_.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class Object_ extends Cast
+{
+    public function getType() : string {
+        return 'Expr_Cast_Object';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/String_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/String_.php
new file mode 100644
index 000000000..b3d99270a
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/String_.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class String_ extends Cast
+{
+    public function getType() : string {
+        return 'Expr_Cast_String';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Unset_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Unset_.php
new file mode 100644
index 000000000..accda3e4f
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Cast/Unset_.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\Cast;
+
+use PhpParser\Node\Expr\Cast;
+
+class Unset_ extends Cast
+{
+    public function getType() : string {
+        return 'Expr_Cast_Unset';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ClassConstFetch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ClassConstFetch.php
new file mode 100644
index 000000000..faf832f93
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ClassConstFetch.php
@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+
+class ClassConstFetch extends Expr
+{
+    /** @var Name|Expr Class name */
+    public $class;
+    /** @var Identifier|Error Constant name */
+    public $name;
+
+    /**
+     * Constructs a class const fetch node.
+     *
+     * @param Name|Expr               $class      Class name
+     * @param string|Identifier|Error $name       Constant name
+     * @param array                   $attributes Additional attributes
+     */
+    public function __construct($class, $name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->class = $class;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['class', 'name'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ClassConstFetch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Clone_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Clone_.php
new file mode 100644
index 000000000..db216b8f8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Clone_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Clone_ extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a clone node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Clone';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Closure.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Closure.php
new file mode 100644
index 000000000..56ddea6aa
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Closure.php
@@ -0,0 +1,79 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+use PhpParser\Node\FunctionLike;
+
+class Closure extends Expr implements FunctionLike
+{
+    /** @var bool Whether the closure is static */
+    public $static;
+    /** @var bool Whether to return by reference */
+    public $byRef;
+    /** @var Node\Param[] Parameters */
+    public $params;
+    /** @var ClosureUse[] use()s */
+    public $uses;
+    /** @var null|Node\Identifier|Node\Name|Node\ComplexType Return type */
+    public $returnType;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    /**
+     * Constructs a lambda function node.
+     *
+     * @param array $subNodes   Array of the following optional subnodes:
+     *                          'static'     => false  : Whether the closure is static
+     *                          'byRef'      => false  : Whether to return by reference
+     *                          'params'     => array(): Parameters
+     *                          'uses'       => array(): use()s
+     *                          'returnType' => null   : Return type
+     *                          'stmts'      => array(): Statements
+     *                          'attrGroups' => array(): PHP attributes groups
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->static = $subNodes['static'] ?? false;
+        $this->byRef = $subNodes['byRef'] ?? false;
+        $this->params = $subNodes['params'] ?? [];
+        $this->uses = $subNodes['uses'] ?? [];
+        $returnType = $subNodes['returnType'] ?? null;
+        $this->returnType = \is_string($returnType) ? new Node\Identifier($returnType) : $returnType;
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'static', 'byRef', 'params', 'uses', 'returnType', 'stmts'];
+    }
+
+    public function returnsByRef() : bool {
+        return $this->byRef;
+    }
+
+    public function getParams() : array {
+        return $this->params;
+    }
+
+    public function getReturnType() {
+        return $this->returnType;
+    }
+
+    /** @return Node\Stmt[] */
+    public function getStmts() : array {
+        return $this->stmts;
+    }
+
+    public function getAttrGroups() : array {
+        return $this->attrGroups;
+    }
+
+    public function getType() : string {
+        return 'Expr_Closure';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ClosureUse.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ClosureUse.php
new file mode 100644
index 000000000..2b8a09666
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ClosureUse.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ClosureUse extends Expr
+{
+    /** @var Expr\Variable Variable to use */
+    public $var;
+    /** @var bool Whether to use by reference */
+    public $byRef;
+
+    /**
+     * Constructs a closure use node.
+     *
+     * @param Expr\Variable $var        Variable to use
+     * @param bool          $byRef      Whether to use by reference
+     * @param array         $attributes Additional attributes
+     */
+    public function __construct(Expr\Variable $var, bool $byRef = false, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->byRef = $byRef;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'byRef'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ClosureUse';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ConstFetch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ConstFetch.php
new file mode 100644
index 000000000..14ebd16bd
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ConstFetch.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Name;
+
+class ConstFetch extends Expr
+{
+    /** @var Name Constant name */
+    public $name;
+
+    /**
+     * Constructs a const fetch node.
+     *
+     * @param Name  $name       Constant name
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Name $name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ConstFetch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Empty_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Empty_.php
new file mode 100644
index 000000000..4042ec93c
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Empty_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Empty_ extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an empty() node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Empty';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Error.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Error.php
new file mode 100644
index 000000000..1637f3aea
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Error.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+/**
+ * Error node used during parsing with error recovery.
+ *
+ * An error node may be placed at a position where an expression is required, but an error occurred.
+ * Error nodes will not be present if the parser is run in throwOnError mode (the default).
+ */
+class Error extends Expr
+{
+    /**
+     * Constructs an error node.
+     *
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $attributes = []) {
+        $this->attributes = $attributes;
+    }
+
+    public function getSubNodeNames() : array {
+        return [];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Error';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ErrorSuppress.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ErrorSuppress.php
new file mode 100644
index 000000000..c44ff6f93
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ErrorSuppress.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ErrorSuppress extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an error suppress node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ErrorSuppress';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Eval_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Eval_.php
new file mode 100644
index 000000000..856854743
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Eval_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Eval_ extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an eval() node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Eval';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Exit_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Exit_.php
new file mode 100644
index 000000000..b88a8f7e6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Exit_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Exit_ extends Expr
+{
+    /* For use in "kind" attribute */
+    const KIND_EXIT = 1;
+    const KIND_DIE = 2;
+
+    /** @var null|Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an exit() node.
+     *
+     * @param null|Expr $expr       Expression
+     * @param array                    $attributes Additional attributes
+     */
+    public function __construct(Expr $expr = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Exit';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/FuncCall.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/FuncCall.php
new file mode 100644
index 000000000..2de4d0dd5
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/FuncCall.php
@@ -0,0 +1,39 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+
+class FuncCall extends CallLike
+{
+    /** @var Node\Name|Expr Function name */
+    public $name;
+    /** @var array<Node\Arg|Node\VariadicPlaceholder> Arguments */
+    public $args;
+
+    /**
+     * Constructs a function call node.
+     *
+     * @param Node\Name|Expr                           $name       Function name
+     * @param array<Node\Arg|Node\VariadicPlaceholder> $args       Arguments
+     * @param array                                    $attributes Additional attributes
+     */
+    public function __construct($name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'args'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_FuncCall';
+    }
+
+    public function getRawArgs(): array {
+        return $this->args;
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Include_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Include_.php
new file mode 100644
index 000000000..07ce5968e
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Include_.php
@@ -0,0 +1,39 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Include_ extends Expr
+{
+    const TYPE_INCLUDE      = 1;
+    const TYPE_INCLUDE_ONCE = 2;
+    const TYPE_REQUIRE      = 3;
+    const TYPE_REQUIRE_ONCE = 4;
+
+    /** @var Expr Expression */
+    public $expr;
+    /** @var int Type of include */
+    public $type;
+
+    /**
+     * Constructs an include node.
+     *
+     * @param Expr  $expr       Expression
+     * @param int   $type       Type of include
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, int $type, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+        $this->type = $type;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr', 'type'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Include';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Instanceof_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Instanceof_.php
new file mode 100644
index 000000000..9000d47bb
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Instanceof_.php
@@ -0,0 +1,35 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Name;
+
+class Instanceof_ extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+    /** @var Name|Expr Class name */
+    public $class;
+
+    /**
+     * Constructs an instanceof check node.
+     *
+     * @param Expr      $expr       Expression
+     * @param Name|Expr $class      Class name
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, $class, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+        $this->class = $class;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr', 'class'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Instanceof';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Isset_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Isset_.php
new file mode 100644
index 000000000..76b738758
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Isset_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Isset_ extends Expr
+{
+    /** @var Expr[] Variables */
+    public $vars;
+
+    /**
+     * Constructs an array node.
+     *
+     * @param Expr[] $vars       Variables
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(array $vars, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->vars = $vars;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['vars'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Isset';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/List_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/List_.php
new file mode 100644
index 000000000..c27a27b95
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/List_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class List_ extends Expr
+{
+    /** @var (ArrayItem|null)[] List of items to assign to */
+    public $items;
+
+    /**
+     * Constructs a list() destructuring node.
+     *
+     * @param (ArrayItem|null)[] $items      List of items to assign to
+     * @param array              $attributes Additional attributes
+     */
+    public function __construct(array $items, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->items = $items;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['items'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_List';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Match_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Match_.php
new file mode 100644
index 000000000..2455a3026
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Match_.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\MatchArm;
+
+class Match_ extends Node\Expr
+{
+    /** @var Node\Expr */
+    public $cond;
+    /** @var MatchArm[] */
+    public $arms;
+
+    /**
+     * @param MatchArm[] $arms
+     */
+    public function __construct(Node\Expr $cond, array $arms = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->arms = $arms;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'arms'];
+    }
+
+    public function getType() : string {
+        return 'Expr_Match';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/MethodCall.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/MethodCall.php
new file mode 100644
index 000000000..49ca48356
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/MethodCall.php
@@ -0,0 +1,45 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Arg;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\VariadicPlaceholder;
+
+class MethodCall extends CallLike
+{
+    /** @var Expr Variable holding object */
+    public $var;
+    /** @var Identifier|Expr Method name */
+    public $name;
+    /** @var array<Arg|VariadicPlaceholder> Arguments */
+    public $args;
+
+    /**
+     * Constructs a function call node.
+     *
+     * @param Expr                           $var        Variable holding object
+     * @param string|Identifier|Expr         $name       Method name
+     * @param array<Arg|VariadicPlaceholder> $args       Arguments
+     * @param array                          $attributes Additional attributes
+     */
+    public function __construct(Expr $var, $name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'name', 'args'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_MethodCall';
+    }
+
+    public function getRawArgs(): array {
+        return $this->args;
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/New_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/New_.php
new file mode 100644
index 000000000..e2bb64928
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/New_.php
@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\Arg;
+use PhpParser\Node\Expr;
+use PhpParser\Node\VariadicPlaceholder;
+
+class New_ extends CallLike
+{
+    /** @var Node\Name|Expr|Node\Stmt\Class_ Class name */
+    public $class;
+    /** @var array<Arg|VariadicPlaceholder> Arguments */
+    public $args;
+
+    /**
+     * Constructs a function call node.
+     *
+     * @param Node\Name|Expr|Node\Stmt\Class_ $class      Class name (or class node for anonymous classes)
+     * @param array<Arg|VariadicPlaceholder>  $args       Arguments
+     * @param array                           $attributes Additional attributes
+     */
+    public function __construct($class, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->class = $class;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['class', 'args'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_New';
+    }
+
+    public function getRawArgs(): array {
+        return $this->args;
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/NullsafeMethodCall.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/NullsafeMethodCall.php
new file mode 100644
index 000000000..07a571fd8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/NullsafeMethodCall.php
@@ -0,0 +1,45 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Arg;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\VariadicPlaceholder;
+
+class NullsafeMethodCall extends CallLike
+{
+    /** @var Expr Variable holding object */
+    public $var;
+    /** @var Identifier|Expr Method name */
+    public $name;
+    /** @var array<Arg|VariadicPlaceholder> Arguments */
+    public $args;
+
+    /**
+     * Constructs a nullsafe method call node.
+     *
+     * @param Expr                           $var        Variable holding object
+     * @param string|Identifier|Expr         $name       Method name
+     * @param array<Arg|VariadicPlaceholder> $args       Arguments
+     * @param array                          $attributes Additional attributes
+     */
+    public function __construct(Expr $var, $name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'name', 'args'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_NullsafeMethodCall';
+    }
+
+    public function getRawArgs(): array {
+        return $this->args;
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/NullsafePropertyFetch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/NullsafePropertyFetch.php
new file mode 100644
index 000000000..9317eb3b9
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/NullsafePropertyFetch.php
@@ -0,0 +1,35 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+
+class NullsafePropertyFetch extends Expr
+{
+    /** @var Expr Variable holding object */
+    public $var;
+    /** @var Identifier|Expr Property name */
+    public $name;
+
+    /**
+     * Constructs a nullsafe property fetch node.
+     *
+     * @param Expr                   $var        Variable holding object
+     * @param string|Identifier|Expr $name       Property name
+     * @param array                  $attributes Additional attributes
+     */
+    public function __construct(Expr $var, $name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'name'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_NullsafePropertyFetch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostDec.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostDec.php
new file mode 100644
index 000000000..94d6c296d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostDec.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class PostDec extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+
+    /**
+     * Constructs a post decrement node.
+     *
+     * @param Expr  $var        Variable
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_PostDec';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostInc.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostInc.php
new file mode 100644
index 000000000..005c443a2
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostInc.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class PostInc extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+
+    /**
+     * Constructs a post increment node.
+     *
+     * @param Expr  $var        Variable
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_PostInc';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PreDec.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PreDec.php
new file mode 100644
index 000000000..a5ca685a8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PreDec.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class PreDec extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+
+    /**
+     * Constructs a pre decrement node.
+     *
+     * @param Expr  $var        Variable
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var'];
+    }
+
+    public function getType() : string {
+        return 'Expr_PreDec';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PreInc.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PreInc.php
new file mode 100644
index 000000000..0986c4474
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PreInc.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class PreInc extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+
+    /**
+     * Constructs a pre increment node.
+     *
+     * @param Expr  $var        Variable
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_PreInc';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Print_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Print_.php
new file mode 100644
index 000000000..2d43c2ac8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Print_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Print_ extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an print() node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Print';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PropertyFetch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PropertyFetch.php
new file mode 100644
index 000000000..4281f31cc
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PropertyFetch.php
@@ -0,0 +1,35 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+
+class PropertyFetch extends Expr
+{
+    /** @var Expr Variable holding object */
+    public $var;
+    /** @var Identifier|Expr Property name */
+    public $name;
+
+    /**
+     * Constructs a function call node.
+     *
+     * @param Expr                   $var        Variable holding object
+     * @param string|Identifier|Expr $name       Property name
+     * @param array                  $attributes Additional attributes
+     */
+    public function __construct(Expr $var, $name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'name'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_PropertyFetch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ShellExec.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ShellExec.php
new file mode 100644
index 000000000..537a7cc80
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ShellExec.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ShellExec extends Expr
+{
+    /** @var array Encapsed string array */
+    public $parts;
+
+    /**
+     * Constructs a shell exec (backtick) node.
+     *
+     * @param array $parts      Encapsed string array
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $parts, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->parts = $parts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['parts'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ShellExec';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/StaticCall.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/StaticCall.php
new file mode 100644
index 000000000..d0d099c47
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/StaticCall.php
@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\Arg;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\VariadicPlaceholder;
+
+class StaticCall extends CallLike
+{
+    /** @var Node\Name|Expr Class name */
+    public $class;
+    /** @var Identifier|Expr Method name */
+    public $name;
+    /** @var array<Arg|VariadicPlaceholder> Arguments */
+    public $args;
+
+    /**
+     * Constructs a static method call node.
+     *
+     * @param Node\Name|Expr                 $class      Class name
+     * @param string|Identifier|Expr         $name       Method name
+     * @param array<Arg|VariadicPlaceholder> $args       Arguments
+     * @param array                          $attributes Additional attributes
+     */
+    public function __construct($class, $name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->class = $class;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['class', 'name', 'args'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_StaticCall';
+    }
+
+    public function getRawArgs(): array {
+        return $this->args;
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/StaticPropertyFetch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/StaticPropertyFetch.php
new file mode 100644
index 000000000..1ee1a25e5
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/StaticPropertyFetch.php
@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Name;
+use PhpParser\Node\VarLikeIdentifier;
+
+class StaticPropertyFetch extends Expr
+{
+    /** @var Name|Expr Class name */
+    public $class;
+    /** @var VarLikeIdentifier|Expr Property name */
+    public $name;
+
+    /**
+     * Constructs a static property fetch node.
+     *
+     * @param Name|Expr                     $class      Class name
+     * @param string|VarLikeIdentifier|Expr $name       Property name
+     * @param array                         $attributes Additional attributes
+     */
+    public function __construct($class, $name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->class = $class;
+        $this->name = \is_string($name) ? new VarLikeIdentifier($name) : $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['class', 'name'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_StaticPropertyFetch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Ternary.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Ternary.php
new file mode 100644
index 000000000..9316f47d4
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Ternary.php
@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Ternary extends Expr
+{
+    /** @var Expr Condition */
+    public $cond;
+    /** @var null|Expr Expression for true */
+    public $if;
+    /** @var Expr Expression for false */
+    public $else;
+
+    /**
+     * Constructs a ternary operator node.
+     *
+     * @param Expr      $cond       Condition
+     * @param null|Expr $if         Expression for true
+     * @param Expr      $else       Expression for false
+     * @param array                    $attributes Additional attributes
+     */
+    public function __construct(Expr $cond, $if, Expr $else, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->if = $if;
+        $this->else = $else;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'if', 'else'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Ternary';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Throw_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Throw_.php
new file mode 100644
index 000000000..5c97f0e2b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Throw_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+
+class Throw_ extends Node\Expr
+{
+    /** @var Node\Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a throw expression node.
+     *
+     * @param Node\Expr $expr       Expression
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+
+    public function getType() : string {
+        return 'Expr_Throw';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/UnaryMinus.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/UnaryMinus.php
new file mode 100644
index 000000000..ce8808bc6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/UnaryMinus.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class UnaryMinus extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a unary minus node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_UnaryMinus';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/UnaryPlus.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/UnaryPlus.php
new file mode 100644
index 000000000..d23047e54
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/UnaryPlus.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class UnaryPlus extends Expr
+{
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a unary plus node.
+     *
+     * @param Expr $expr       Expression
+     * @param array               $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_UnaryPlus';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Variable.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Variable.php
new file mode 100644
index 000000000..b47d38e93
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Variable.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Variable extends Expr
+{
+    /** @var string|Expr Name */
+    public $name;
+
+    /**
+     * Constructs a variable node.
+     *
+     * @param string|Expr $name       Name
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct($name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Variable';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/YieldFrom.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/YieldFrom.php
new file mode 100644
index 000000000..a3efce618
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/YieldFrom.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class YieldFrom extends Expr
+{
+    /** @var Expr Expression to yield from */
+    public $expr;
+
+    /**
+     * Constructs an "yield from" node.
+     *
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_YieldFrom';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Yield_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Yield_.php
new file mode 100644
index 000000000..aef8fc333
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Yield_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Yield_ extends Expr
+{
+    /** @var null|Expr Key expression */
+    public $key;
+    /** @var null|Expr Value expression */
+    public $value;
+
+    /**
+     * Constructs a yield expression node.
+     *
+     * @param null|Expr $value      Value expression
+     * @param null|Expr $key        Key expression
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $value = null, Expr $key = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->key = $key;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['key', 'value'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Yield';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/FunctionLike.php b/vendor/nikic/php-parser/lib/PhpParser/Node/FunctionLike.php
new file mode 100644
index 000000000..5a825e731
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/FunctionLike.php
@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+
+interface FunctionLike extends Node
+{
+    /**
+     * Whether to return by reference
+     *
+     * @return bool
+     */
+    public function returnsByRef() : bool;
+
+    /**
+     * List of parameters
+     *
+     * @return Param[]
+     */
+    public function getParams() : array;
+
+    /**
+     * Get the declared return type or null
+     *
+     * @return null|Identifier|Name|ComplexType
+     */
+    public function getReturnType();
+
+    /**
+     * The function body
+     *
+     * @return Stmt[]|null
+     */
+    public function getStmts();
+
+    /**
+     * Get PHP attribute groups.
+     *
+     * @return AttributeGroup[]
+     */
+    public function getAttrGroups() : array;
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Identifier.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Identifier.php
new file mode 100644
index 000000000..2f262db0a
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Identifier.php
@@ -0,0 +1,75 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+/**
+ * Represents a non-namespaced name. Namespaced names are represented using Name nodes.
+ */
+class Identifier extends NodeAbstract
+{
+    /** @var string Identifier as string */
+    public $name;
+
+    private static $specialClassNames = [
+        'self'   => true,
+        'parent' => true,
+        'static' => true,
+    ];
+
+    /**
+     * Constructs an identifier node.
+     *
+     * @param string $name       Identifier as string
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(string $name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name'];
+    }
+
+    /**
+     * Get identifier as string.
+     *
+     * @return string Identifier as string.
+     */
+    public function toString() : string {
+        return $this->name;
+    }
+
+    /**
+     * Get lowercased identifier as string.
+     *
+     * @return string Lowercased identifier as string
+     */
+    public function toLowerString() : string {
+        return strtolower($this->name);
+    }
+
+    /**
+     * Checks whether the identifier is a special class name (self, parent or static).
+     *
+     * @return bool Whether identifier is a special class name
+     */
+    public function isSpecialClassName() : bool {
+        return isset(self::$specialClassNames[strtolower($this->name)]);
+    }
+
+    /**
+     * Get identifier as string.
+     *
+     * @return string Identifier as string
+     */
+    public function __toString() : string {
+        return $this->name;
+    }
+    
+    public function getType() : string {
+        return 'Identifier';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/IntersectionType.php b/vendor/nikic/php-parser/lib/PhpParser/Node/IntersectionType.php
new file mode 100644
index 000000000..9208e1392
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/IntersectionType.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class IntersectionType extends ComplexType
+{
+    /** @var (Identifier|Name)[] Types */
+    public $types;
+
+    /**
+     * Constructs an intersection type.
+     *
+     * @param (Identifier|Name)[] $types      Types
+     * @param array               $attributes Additional attributes
+     */
+    public function __construct(array $types, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->types = $types;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['types'];
+    }
+
+    public function getType() : string {
+        return 'IntersectionType';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/MatchArm.php b/vendor/nikic/php-parser/lib/PhpParser/Node/MatchArm.php
new file mode 100644
index 000000000..2ae1c86b8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/MatchArm.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+use PhpParser\NodeAbstract;
+
+class MatchArm extends NodeAbstract
+{
+    /** @var null|Node\Expr[] */
+    public $conds;
+    /** @var Node\Expr */
+    public $body;
+
+    /**
+     * @param null|Node\Expr[] $conds
+     */
+    public function __construct($conds, Node\Expr $body, array $attributes = []) {
+        $this->conds = $conds;
+        $this->body = $body;
+        $this->attributes = $attributes;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['conds', 'body'];
+    }
+
+    public function getType() : string {
+        return 'MatchArm';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Name.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Name.php
new file mode 100644
index 000000000..6b1cc9f8e
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Name.php
@@ -0,0 +1,242 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class Name extends NodeAbstract
+{
+    /** @var string[] Parts of the name */
+    public $parts;
+
+    private static $specialClassNames = [
+        'self'   => true,
+        'parent' => true,
+        'static' => true,
+    ];
+
+    /**
+     * Constructs a name node.
+     *
+     * @param string|string[]|self $name       Name as string, part array or Name instance (copy ctor)
+     * @param array                $attributes Additional attributes
+     */
+    public function __construct($name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->parts = self::prepareName($name);
+    }
+
+    public function getSubNodeNames() : array {
+        return ['parts'];
+    }
+
+    /**
+     * Gets the first part of the name, i.e. everything before the first namespace separator.
+     *
+     * @return string First part of the name
+     */
+    public function getFirst() : string {
+        return $this->parts[0];
+    }
+
+    /**
+     * Gets the last part of the name, i.e. everything after the last namespace separator.
+     *
+     * @return string Last part of the name
+     */
+    public function getLast() : string {
+        return $this->parts[count($this->parts) - 1];
+    }
+
+    /**
+     * Checks whether the name is unqualified. (E.g. Name)
+     *
+     * @return bool Whether the name is unqualified
+     */
+    public function isUnqualified() : bool {
+        return 1 === count($this->parts);
+    }
+
+    /**
+     * Checks whether the name is qualified. (E.g. Name\Name)
+     *
+     * @return bool Whether the name is qualified
+     */
+    public function isQualified() : bool {
+        return 1 < count($this->parts);
+    }
+
+    /**
+     * Checks whether the name is fully qualified. (E.g. \Name)
+     *
+     * @return bool Whether the name is fully qualified
+     */
+    public function isFullyQualified() : bool {
+        return false;
+    }
+
+    /**
+     * Checks whether the name is explicitly relative to the current namespace. (E.g. namespace\Name)
+     *
+     * @return bool Whether the name is relative
+     */
+    public function isRelative() : bool {
+        return false;
+    }
+
+    /**
+     * Returns a string representation of the name itself, without taking the name type into
+     * account (e.g., not including a leading backslash for fully qualified names).
+     *
+     * @return string String representation
+     */
+    public function toString() : string {
+        return implode('\\', $this->parts);
+    }
+
+    /**
+     * Returns a string representation of the name as it would occur in code (e.g., including
+     * leading backslash for fully qualified names.
+     *
+     * @return string String representation
+     */
+    public function toCodeString() : string {
+        return $this->toString();
+    }
+
+    /**
+     * Returns lowercased string representation of the name, without taking the name type into
+     * account (e.g., no leading backslash for fully qualified names).
+     *
+     * @return string Lowercased string representation
+     */
+    public function toLowerString() : string {
+        return strtolower(implode('\\', $this->parts));
+    }
+
+    /**
+     * Checks whether the identifier is a special class name (self, parent or static).
+     *
+     * @return bool Whether identifier is a special class name
+     */
+    public function isSpecialClassName() : bool {
+        return count($this->parts) === 1
+            && isset(self::$specialClassNames[strtolower($this->parts[0])]);
+    }
+
+    /**
+     * Returns a string representation of the name by imploding the namespace parts with the
+     * namespace separator.
+     *
+     * @return string String representation
+     */
+    public function __toString() : string {
+        return implode('\\', $this->parts);
+    }
+
+    /**
+     * Gets a slice of a name (similar to array_slice).
+     *
+     * This method returns a new instance of the same type as the original and with the same
+     * attributes.
+     *
+     * If the slice is empty, null is returned. The null value will be correctly handled in
+     * concatenations using concat().
+     *
+     * Offset and length have the same meaning as in array_slice().
+     *
+     * @param int      $offset Offset to start the slice at (may be negative)
+     * @param int|null $length Length of the slice (may be negative)
+     *
+     * @return static|null Sliced name
+     */
+    public function slice(int $offset, int $length = null) {
+        $numParts = count($this->parts);
+
+        $realOffset = $offset < 0 ? $offset + $numParts : $offset;
+        if ($realOffset < 0 || $realOffset > $numParts) {
+            throw new \OutOfBoundsException(sprintf('Offset %d is out of bounds', $offset));
+        }
+
+        if (null === $length) {
+            $realLength = $numParts - $realOffset;
+        } else {
+            $realLength = $length < 0 ? $length + $numParts - $realOffset : $length;
+            if ($realLength < 0 || $realLength > $numParts) {
+                throw new \OutOfBoundsException(sprintf('Length %d is out of bounds', $length));
+            }
+        }
+
+        if ($realLength === 0) {
+            // Empty slice is represented as null
+            return null;
+        }
+
+        return new static(array_slice($this->parts, $realOffset, $realLength), $this->attributes);
+    }
+
+    /**
+     * Concatenate two names, yielding a new Name instance.
+     *
+     * The type of the generated instance depends on which class this method is called on, for
+     * example Name\FullyQualified::concat() will yield a Name\FullyQualified instance.
+     *
+     * If one of the arguments is null, a new instance of the other name will be returned. If both
+     * arguments are null, null will be returned. As such, writing
+     *     Name::concat($namespace, $shortName)
+     * where $namespace is a Name node or null will work as expected.
+     *
+     * @param string|string[]|self|null $name1      The first name
+     * @param string|string[]|self|null $name2      The second name
+     * @param array                     $attributes Attributes to assign to concatenated name
+     *
+     * @return static|null Concatenated name
+     */
+    public static function concat($name1, $name2, array $attributes = []) {
+        if (null === $name1 && null === $name2) {
+            return null;
+        } elseif (null === $name1) {
+            return new static(self::prepareName($name2), $attributes);
+        } elseif (null === $name2) {
+            return new static(self::prepareName($name1), $attributes);
+        } else {
+            return new static(
+                array_merge(self::prepareName($name1), self::prepareName($name2)), $attributes
+            );
+        }
+    }
+
+    /**
+     * Prepares a (string, array or Name node) name for use in name changing methods by converting
+     * it to an array.
+     *
+     * @param string|string[]|self $name Name to prepare
+     *
+     * @return string[] Prepared name
+     */
+    private static function prepareName($name) : array {
+        if (\is_string($name)) {
+            if ('' === $name) {
+                throw new \InvalidArgumentException('Name cannot be empty');
+            }
+
+            return explode('\\', $name);
+        } elseif (\is_array($name)) {
+            if (empty($name)) {
+                throw new \InvalidArgumentException('Name cannot be empty');
+            }
+
+            return $name;
+        } elseif ($name instanceof self) {
+            return $name->parts;
+        }
+
+        throw new \InvalidArgumentException(
+            'Expected string, array of parts or Name instance'
+        );
+    }
+
+    public function getType() : string {
+        return 'Name';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Name/FullyQualified.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Name/FullyQualified.php
new file mode 100644
index 000000000..1df93a56b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Name/FullyQualified.php
@@ -0,0 +1,50 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Name;
+
+class FullyQualified extends \PhpParser\Node\Name
+{
+    /**
+     * Checks whether the name is unqualified. (E.g. Name)
+     *
+     * @return bool Whether the name is unqualified
+     */
+    public function isUnqualified() : bool {
+        return false;
+    }
+
+    /**
+     * Checks whether the name is qualified. (E.g. Name\Name)
+     *
+     * @return bool Whether the name is qualified
+     */
+    public function isQualified() : bool {
+        return false;
+    }
+
+    /**
+     * Checks whether the name is fully qualified. (E.g. \Name)
+     *
+     * @return bool Whether the name is fully qualified
+     */
+    public function isFullyQualified() : bool {
+        return true;
+    }
+
+    /**
+     * Checks whether the name is explicitly relative to the current namespace. (E.g. namespace\Name)
+     *
+     * @return bool Whether the name is relative
+     */
+    public function isRelative() : bool {
+        return false;
+    }
+
+    public function toCodeString() : string {
+        return '\\' . $this->toString();
+    }
+    
+    public function getType() : string {
+        return 'Name_FullyQualified';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Name/Relative.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Name/Relative.php
new file mode 100644
index 000000000..57bf7af2b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Name/Relative.php
@@ -0,0 +1,50 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Name;
+
+class Relative extends \PhpParser\Node\Name
+{
+    /**
+     * Checks whether the name is unqualified. (E.g. Name)
+     *
+     * @return bool Whether the name is unqualified
+     */
+    public function isUnqualified() : bool {
+        return false;
+    }
+
+    /**
+     * Checks whether the name is qualified. (E.g. Name\Name)
+     *
+     * @return bool Whether the name is qualified
+     */
+    public function isQualified() : bool {
+        return false;
+    }
+
+    /**
+     * Checks whether the name is fully qualified. (E.g. \Name)
+     *
+     * @return bool Whether the name is fully qualified
+     */
+    public function isFullyQualified() : bool {
+        return false;
+    }
+
+    /**
+     * Checks whether the name is explicitly relative to the current namespace. (E.g. namespace\Name)
+     *
+     * @return bool Whether the name is relative
+     */
+    public function isRelative() : bool {
+        return true;
+    }
+
+    public function toCodeString() : string {
+        return 'namespace\\' . $this->toString();
+    }
+    
+    public function getType() : string {
+        return 'Name_Relative';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/NullableType.php b/vendor/nikic/php-parser/lib/PhpParser/Node/NullableType.php
new file mode 100644
index 000000000..d68e26a38
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/NullableType.php
@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+class NullableType extends ComplexType
+{
+    /** @var Identifier|Name Type */
+    public $type;
+
+    /**
+     * Constructs a nullable type (wrapping another type).
+     *
+     * @param string|Identifier|Name $type       Type
+     * @param array                  $attributes Additional attributes
+     */
+    public function __construct($type, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->type = \is_string($type) ? new Identifier($type) : $type;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['type'];
+    }
+    
+    public function getType() : string {
+        return 'NullableType';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Param.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Param.php
new file mode 100644
index 000000000..1e90b7944
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Param.php
@@ -0,0 +1,60 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class Param extends NodeAbstract
+{
+    /** @var null|Identifier|Name|ComplexType Type declaration */
+    public $type;
+    /** @var bool Whether parameter is passed by reference */
+    public $byRef;
+    /** @var bool Whether this is a variadic argument */
+    public $variadic;
+    /** @var Expr\Variable|Expr\Error Parameter variable */
+    public $var;
+    /** @var null|Expr Default value */
+    public $default;
+    /** @var int */
+    public $flags;
+    /** @var AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    /**
+     * Constructs a parameter node.
+     *
+     * @param Expr\Variable|Expr\Error                $var        Parameter variable
+     * @param null|Expr                               $default    Default value
+     * @param null|string|Identifier|Name|ComplexType $type       Type declaration
+     * @param bool                                    $byRef      Whether is passed by reference
+     * @param bool                                    $variadic   Whether this is a variadic argument
+     * @param array                                   $attributes Additional attributes
+     * @param int                                     $flags      Optional visibility flags
+     * @param AttributeGroup[]                        $attrGroups PHP attribute groups
+     */
+    public function __construct(
+        $var, Expr $default = null, $type = null,
+        bool $byRef = false, bool $variadic = false,
+        array $attributes = [],
+        int $flags = 0,
+        array $attrGroups = []
+    ) {
+        $this->attributes = $attributes;
+        $this->type = \is_string($type) ? new Identifier($type) : $type;
+        $this->byRef = $byRef;
+        $this->variadic = $variadic;
+        $this->var = $var;
+        $this->default = $default;
+        $this->flags = $flags;
+        $this->attrGroups = $attrGroups;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'flags', 'type', 'byRef', 'variadic', 'var', 'default'];
+    }
+
+    public function getType() : string {
+        return 'Param';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar.php
new file mode 100644
index 000000000..8117909b6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar.php
@@ -0,0 +1,7 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+abstract class Scalar extends Expr
+{
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/DNumber.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/DNumber.php
new file mode 100644
index 000000000..29ce0dd40
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/DNumber.php
@@ -0,0 +1,70 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Node\Scalar;
+
+class DNumber extends Scalar
+{
+    /** @var float Number value */
+    public $value;
+
+    /**
+     * Constructs a float number scalar node.
+     *
+     * @param float $value      Value of the number
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(float $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['value'];
+    }
+
+    /**
+     * @internal
+     *
+     * Parses a DNUMBER token like PHP would.
+     *
+     * @param string $str A string number
+     *
+     * @return float The parsed number
+     */
+    public static function parse(string $str) : float {
+        $str = str_replace('_', '', $str);
+
+        // if string contains any of .eE just cast it to float
+        if (false !== strpbrk($str, '.eE')) {
+            return (float) $str;
+        }
+
+        // otherwise it's an integer notation that overflowed into a float
+        // if it starts with 0 it's one of the special integer notations
+        if ('0' === $str[0]) {
+            // hex
+            if ('x' === $str[1] || 'X' === $str[1]) {
+                return hexdec($str);
+            }
+
+            // bin
+            if ('b' === $str[1] || 'B' === $str[1]) {
+                return bindec($str);
+            }
+
+            // oct
+            // substr($str, 0, strcspn($str, '89')) cuts the string at the first invalid digit (8 or 9)
+            // so that only the digits before that are used
+            return octdec(substr($str, 0, strcspn($str, '89')));
+        }
+
+        // dec
+        return (float) $str;
+    }
+    
+    public function getType() : string {
+        return 'Scalar_DNumber';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/Encapsed.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/Encapsed.php
new file mode 100644
index 000000000..fa5d2e268
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/Encapsed.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Scalar;
+
+class Encapsed extends Scalar
+{
+    /** @var Expr[] list of string parts */
+    public $parts;
+
+    /**
+     * Constructs an encapsed string node.
+     *
+     * @param Expr[] $parts      Encaps list
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(array $parts, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->parts = $parts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['parts'];
+    }
+    
+    public function getType() : string {
+        return 'Scalar_Encapsed';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/EncapsedStringPart.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/EncapsedStringPart.php
new file mode 100644
index 000000000..bb3194c1d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/EncapsedStringPart.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Node\Scalar;
+
+class EncapsedStringPart extends Scalar
+{
+    /** @var string String value */
+    public $value;
+
+    /**
+     * Constructs a node representing a string part of an encapsed string.
+     *
+     * @param string $value      String value
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(string $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['value'];
+    }
+    
+    public function getType() : string {
+        return 'Scalar_EncapsedStringPart';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/LNumber.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/LNumber.php
new file mode 100644
index 000000000..f17dd1f8a
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/LNumber.php
@@ -0,0 +1,78 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Error;
+use PhpParser\Node\Scalar;
+
+class LNumber extends Scalar
+{
+    /* For use in "kind" attribute */
+    const KIND_BIN = 2;
+    const KIND_OCT = 8;
+    const KIND_DEC = 10;
+    const KIND_HEX = 16;
+
+    /** @var int Number value */
+    public $value;
+
+    /**
+     * Constructs an integer number scalar node.
+     *
+     * @param int   $value      Value of the number
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(int $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['value'];
+    }
+
+    /**
+     * Constructs an LNumber node from a string number literal.
+     *
+     * @param string $str               String number literal (decimal, octal, hex or binary)
+     * @param array  $attributes        Additional attributes
+     * @param bool   $allowInvalidOctal Whether to allow invalid octal numbers (PHP 5)
+     *
+     * @return LNumber The constructed LNumber, including kind attribute
+     */
+    public static function fromString(string $str, array $attributes = [], bool $allowInvalidOctal = false) : LNumber {
+        $str = str_replace('_', '', $str);
+
+        if ('0' !== $str[0] || '0' === $str) {
+            $attributes['kind'] = LNumber::KIND_DEC;
+            return new LNumber((int) $str, $attributes);
+        }
+
+        if ('x' === $str[1] || 'X' === $str[1]) {
+            $attributes['kind'] = LNumber::KIND_HEX;
+            return new LNumber(hexdec($str), $attributes);
+        }
+
+        if ('b' === $str[1] || 'B' === $str[1]) {
+            $attributes['kind'] = LNumber::KIND_BIN;
+            return new LNumber(bindec($str), $attributes);
+        }
+
+        if (!$allowInvalidOctal && strpbrk($str, '89')) {
+            throw new Error('Invalid numeric literal', $attributes);
+        }
+
+        // Strip optional explicit octal prefix.
+        if ('o' === $str[1] || 'O' === $str[1]) {
+            $str = substr($str, 2);
+        }
+
+        // use intval instead of octdec to get proper cutting behavior with malformed numbers
+        $attributes['kind'] = LNumber::KIND_OCT;
+        return new LNumber(intval($str, 8), $attributes);
+    }
+    
+    public function getType() : string {
+        return 'Scalar_LNumber';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst.php
new file mode 100644
index 000000000..941f0c762
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst.php
@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Node\Scalar;
+
+abstract class MagicConst extends Scalar
+{
+    /**
+     * Constructs a magic constant node.
+     *
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $attributes = []) {
+        $this->attributes = $attributes;
+    }
+
+    public function getSubNodeNames() : array {
+        return [];
+    }
+
+    /**
+     * Get name of magic constant.
+     *
+     * @return string Name of magic constant
+     */
+    abstract public function getName() : string;
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Class_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Class_.php
new file mode 100644
index 000000000..244328476
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Class_.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Class_ extends MagicConst
+{
+    public function getName() : string {
+        return '__CLASS__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Class';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Dir.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Dir.php
new file mode 100644
index 000000000..2b618473e
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Dir.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Dir extends MagicConst
+{
+    public function getName() : string {
+        return '__DIR__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Dir';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/File.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/File.php
new file mode 100644
index 000000000..3422db069
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/File.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class File extends MagicConst
+{
+    public function getName() : string {
+        return '__FILE__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_File';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Function_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Function_.php
new file mode 100644
index 000000000..1db65a151
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Function_.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Function_ extends MagicConst
+{
+    public function getName() : string {
+        return '__FUNCTION__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Function';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Line.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Line.php
new file mode 100644
index 000000000..25d3de57c
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Line.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Line extends MagicConst
+{
+    public function getName() : string {
+        return '__LINE__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Line';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Method.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Method.php
new file mode 100644
index 000000000..d168d56f1
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Method.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Method extends MagicConst
+{
+    public function getName() : string {
+        return '__METHOD__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Method';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Namespace_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Namespace_.php
new file mode 100644
index 000000000..4fabb751a
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Namespace_.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Namespace_ extends MagicConst
+{
+    public function getName() : string {
+        return '__NAMESPACE__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Namespace';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Trait_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Trait_.php
new file mode 100644
index 000000000..5ee7e40a3
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/MagicConst/Trait_.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar\MagicConst;
+
+use PhpParser\Node\Scalar\MagicConst;
+
+class Trait_ extends MagicConst
+{
+    public function getName() : string {
+        return '__TRAIT__';
+    }
+    
+    public function getType() : string {
+        return 'Scalar_MagicConst_Trait';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/String_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/String_.php
new file mode 100644
index 000000000..8a6d93a47
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/String_.php
@@ -0,0 +1,141 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Error;
+use PhpParser\Node\Scalar;
+
+class String_ extends Scalar
+{
+    /* For use in "kind" attribute */
+    const KIND_SINGLE_QUOTED = 1;
+    const KIND_DOUBLE_QUOTED = 2;
+    const KIND_HEREDOC = 3;
+    const KIND_NOWDOC = 4;
+
+    /** @var string String value */
+    public $value;
+
+    protected static $replacements = [
+        '\\' => '\\',
+        '$'  =>  '$',
+        'n'  => "\n",
+        'r'  => "\r",
+        't'  => "\t",
+        'f'  => "\f",
+        'v'  => "\v",
+        'e'  => "\x1B",
+    ];
+
+    /**
+     * Constructs a string scalar node.
+     *
+     * @param string $value      Value of the string
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(string $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['value'];
+    }
+
+    /**
+     * @internal
+     *
+     * Parses a string token.
+     *
+     * @param string $str String token content
+     * @param bool $parseUnicodeEscape Whether to parse PHP 7 \u escapes
+     *
+     * @return string The parsed string
+     */
+    public static function parse(string $str, bool $parseUnicodeEscape = true) : string {
+        $bLength = 0;
+        if ('b' === $str[0] || 'B' === $str[0]) {
+            $bLength = 1;
+        }
+
+        if ('\'' === $str[$bLength]) {
+            return str_replace(
+                ['\\\\', '\\\''],
+                ['\\', '\''],
+                substr($str, $bLength + 1, -1)
+            );
+        } else {
+            return self::parseEscapeSequences(
+                substr($str, $bLength + 1, -1), '"', $parseUnicodeEscape
+            );
+        }
+    }
+
+    /**
+     * @internal
+     *
+     * Parses escape sequences in strings (all string types apart from single quoted).
+     *
+     * @param string      $str   String without quotes
+     * @param null|string $quote Quote type
+     * @param bool $parseUnicodeEscape Whether to parse PHP 7 \u escapes
+     *
+     * @return string String with escape sequences parsed
+     */
+    public static function parseEscapeSequences(string $str, $quote, bool $parseUnicodeEscape = true) : string {
+        if (null !== $quote) {
+            $str = str_replace('\\' . $quote, $quote, $str);
+        }
+
+        $extra = '';
+        if ($parseUnicodeEscape) {
+            $extra = '|u\{([0-9a-fA-F]+)\}';
+        }
+
+        return preg_replace_callback(
+            '~\\\\([\\\\$nrtfve]|[xX][0-9a-fA-F]{1,2}|[0-7]{1,3}' . $extra . ')~',
+            function($matches) {
+                $str = $matches[1];
+
+                if (isset(self::$replacements[$str])) {
+                    return self::$replacements[$str];
+                } elseif ('x' === $str[0] || 'X' === $str[0]) {
+                    return chr(hexdec(substr($str, 1)));
+                } elseif ('u' === $str[0]) {
+                    return self::codePointToUtf8(hexdec($matches[2]));
+                } else {
+                    return chr(octdec($str));
+                }
+            },
+            $str
+        );
+    }
+
+    /**
+     * Converts a Unicode code point to its UTF-8 encoded representation.
+     *
+     * @param int $num Code point
+     *
+     * @return string UTF-8 representation of code point
+     */
+    private static function codePointToUtf8(int $num) : string {
+        if ($num <= 0x7F) {
+            return chr($num);
+        }
+        if ($num <= 0x7FF) {
+            return chr(($num>>6) + 0xC0) . chr(($num&0x3F) + 0x80);
+        }
+        if ($num <= 0xFFFF) {
+            return chr(($num>>12) + 0xE0) . chr((($num>>6)&0x3F) + 0x80) . chr(($num&0x3F) + 0x80);
+        }
+        if ($num <= 0x1FFFFF) {
+            return chr(($num>>18) + 0xF0) . chr((($num>>12)&0x3F) + 0x80)
+                 . chr((($num>>6)&0x3F) + 0x80) . chr(($num&0x3F) + 0x80);
+        }
+        throw new Error('Invalid UTF-8 codepoint escape sequence: Codepoint too large');
+    }
+
+    public function getType() : string {
+        return 'Scalar_String';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt.php
new file mode 100644
index 000000000..69d33e579
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+abstract class Stmt extends NodeAbstract
+{
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Break_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Break_.php
new file mode 100644
index 000000000..6adc5a6c6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Break_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Break_ extends Node\Stmt
+{
+    /** @var null|Node\Expr Number of loops to break */
+    public $num;
+
+    /**
+     * Constructs a break node.
+     *
+     * @param null|Node\Expr $num        Number of loops to break
+     * @param array          $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $num = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->num = $num;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['num'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Break';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Case_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Case_.php
new file mode 100644
index 000000000..2bf044c90
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Case_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Case_ extends Node\Stmt
+{
+    /** @var null|Node\Expr Condition (null for default) */
+    public $cond;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a case node.
+     *
+     * @param null|Node\Expr $cond       Condition (null for default)
+     * @param Node\Stmt[]    $stmts      Statements
+     * @param array          $attributes Additional attributes
+     */
+    public function __construct($cond, array $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Case';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Catch_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Catch_.php
new file mode 100644
index 000000000..9b9c09478
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Catch_.php
@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+
+class Catch_ extends Node\Stmt
+{
+    /** @var Node\Name[] Types of exceptions to catch */
+    public $types;
+    /** @var Expr\Variable|null Variable for exception */
+    public $var;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a catch node.
+     *
+     * @param Node\Name[]           $types      Types of exceptions to catch
+     * @param Expr\Variable|null    $var        Variable for exception
+     * @param Node\Stmt[]           $stmts      Statements
+     * @param array                 $attributes Additional attributes
+     */
+    public function __construct(
+        array $types, Expr\Variable $var = null, array $stmts = [], array $attributes = []
+    ) {
+        $this->attributes = $attributes;
+        $this->types = $types;
+        $this->var = $var;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['types', 'var', 'stmts'];
+    }
+
+    public function getType() : string {
+        return 'Stmt_Catch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassConst.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassConst.php
new file mode 100644
index 000000000..1fc7f3362
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassConst.php
@@ -0,0 +1,80 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class ClassConst extends Node\Stmt
+{
+    /** @var int Modifiers */
+    public $flags;
+    /** @var Node\Const_[] Constant declarations */
+    public $consts;
+    /** @var Node\AttributeGroup[] */
+    public $attrGroups;
+
+    /**
+     * Constructs a class const list node.
+     *
+     * @param Node\Const_[]         $consts     Constant declarations
+     * @param int                   $flags      Modifiers
+     * @param array                 $attributes Additional attributes
+     * @param Node\AttributeGroup[] $attrGroups PHP attribute groups
+     */
+    public function __construct(
+        array $consts,
+        int $flags = 0,
+        array $attributes = [],
+        array $attrGroups = []
+    ) {
+        $this->attributes = $attributes;
+        $this->flags = $flags;
+        $this->consts = $consts;
+        $this->attrGroups = $attrGroups;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'flags', 'consts'];
+    }
+
+    /**
+     * Whether constant is explicitly or implicitly public.
+     *
+     * @return bool
+     */
+    public function isPublic() : bool {
+        return ($this->flags & Class_::MODIFIER_PUBLIC) !== 0
+            || ($this->flags & Class_::VISIBILITY_MODIFIER_MASK) === 0;
+    }
+
+    /**
+     * Whether constant is protected.
+     *
+     * @return bool
+     */
+    public function isProtected() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_PROTECTED);
+    }
+
+    /**
+     * Whether constant is private.
+     *
+     * @return bool
+     */
+    public function isPrivate() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_PRIVATE);
+    }
+
+    /**
+     * Whether constant is final.
+     *
+     * @return bool
+     */
+    public function isFinal() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_FINAL);
+    }
+
+    public function getType() : string {
+        return 'Stmt_ClassConst';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassLike.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassLike.php
new file mode 100644
index 000000000..6c3369172
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassLike.php
@@ -0,0 +1,109 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+abstract class ClassLike extends Node\Stmt
+{
+    /** @var Node\Identifier|null Name */
+    public $name;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    /** @var Node\Name Namespaced name (if using NameResolver) */
+    public $namespacedName;
+
+    /**
+     * @return TraitUse[]
+     */
+    public function getTraitUses() : array {
+        $traitUses = [];
+        foreach ($this->stmts as $stmt) {
+            if ($stmt instanceof TraitUse) {
+                $traitUses[] = $stmt;
+            }
+        }
+        return $traitUses;
+    }
+
+    /**
+     * @return ClassConst[]
+     */
+    public function getConstants() : array {
+        $constants = [];
+        foreach ($this->stmts as $stmt) {
+            if ($stmt instanceof ClassConst) {
+                $constants[] = $stmt;
+            }
+        }
+        return $constants;
+    }
+
+    /**
+     * @return Property[]
+     */
+    public function getProperties() : array {
+        $properties = [];
+        foreach ($this->stmts as $stmt) {
+            if ($stmt instanceof Property) {
+                $properties[] = $stmt;
+            }
+        }
+        return $properties;
+    }
+
+    /**
+     * Gets property with the given name defined directly in this class/interface/trait.
+     *
+     * @param string $name Name of the property
+     *
+     * @return Property|null Property node or null if the property does not exist
+     */
+    public function getProperty(string $name) {
+        foreach ($this->stmts as $stmt) {
+            if ($stmt instanceof Property) {
+                foreach ($stmt->props as $prop) {
+                    if ($prop instanceof PropertyProperty && $name === $prop->name->toString()) {
+                        return $stmt;
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Gets all methods defined directly in this class/interface/trait
+     *
+     * @return ClassMethod[]
+     */
+    public function getMethods() : array {
+        $methods = [];
+        foreach ($this->stmts as $stmt) {
+            if ($stmt instanceof ClassMethod) {
+                $methods[] = $stmt;
+            }
+        }
+        return $methods;
+    }
+
+    /**
+     * Gets method with the given name defined directly in this class/interface/trait.
+     *
+     * @param string $name Name of the method (compared case-insensitively)
+     *
+     * @return ClassMethod|null Method node or null if the method does not exist
+     */
+    public function getMethod(string $name) {
+        $lowerName = strtolower($name);
+        foreach ($this->stmts as $stmt) {
+            if ($stmt instanceof ClassMethod && $lowerName === $stmt->name->toLowerString()) {
+                return $stmt;
+            }
+        }
+        return null;
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassMethod.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassMethod.php
new file mode 100644
index 000000000..09b877a92
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ClassMethod.php
@@ -0,0 +1,159 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\FunctionLike;
+
+class ClassMethod extends Node\Stmt implements FunctionLike
+{
+    /** @var int Flags */
+    public $flags;
+    /** @var bool Whether to return by reference */
+    public $byRef;
+    /** @var Node\Identifier Name */
+    public $name;
+    /** @var Node\Param[] Parameters */
+    public $params;
+    /** @var null|Node\Identifier|Node\Name|Node\ComplexType Return type */
+    public $returnType;
+    /** @var Node\Stmt[]|null Statements */
+    public $stmts;
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    private static $magicNames = [
+        '__construct'  => true,
+        '__destruct'   => true,
+        '__call'       => true,
+        '__callstatic' => true,
+        '__get'        => true,
+        '__set'        => true,
+        '__isset'      => true,
+        '__unset'      => true,
+        '__sleep'      => true,
+        '__wakeup'     => true,
+        '__tostring'   => true,
+        '__set_state'  => true,
+        '__clone'      => true,
+        '__invoke'     => true,
+        '__debuginfo'  => true,
+    ];
+
+    /**
+     * Constructs a class method node.
+     *
+     * @param string|Node\Identifier $name Name
+     * @param array $subNodes   Array of the following optional subnodes:
+     *                          'flags       => MODIFIER_PUBLIC: Flags
+     *                          'byRef'      => false          : Whether to return by reference
+     *                          'params'     => array()        : Parameters
+     *                          'returnType' => null           : Return type
+     *                          'stmts'      => array()        : Statements
+     *                          'attrGroups' => array()        : PHP attribute groups
+     * @param array $attributes Additional attributes
+     */
+    public function __construct($name, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->flags = $subNodes['flags'] ?? $subNodes['type'] ?? 0;
+        $this->byRef = $subNodes['byRef'] ?? false;
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->params = $subNodes['params'] ?? [];
+        $returnType = $subNodes['returnType'] ?? null;
+        $this->returnType = \is_string($returnType) ? new Node\Identifier($returnType) : $returnType;
+        $this->stmts = array_key_exists('stmts', $subNodes) ? $subNodes['stmts'] : [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'flags', 'byRef', 'name', 'params', 'returnType', 'stmts'];
+    }
+
+    public function returnsByRef() : bool {
+        return $this->byRef;
+    }
+
+    public function getParams() : array {
+        return $this->params;
+    }
+
+    public function getReturnType() {
+        return $this->returnType;
+    }
+
+    public function getStmts() {
+        return $this->stmts;
+    }
+
+    public function getAttrGroups() : array {
+        return $this->attrGroups;
+    }
+
+    /**
+     * Whether the method is explicitly or implicitly public.
+     *
+     * @return bool
+     */
+    public function isPublic() : bool {
+        return ($this->flags & Class_::MODIFIER_PUBLIC) !== 0
+            || ($this->flags & Class_::VISIBILITY_MODIFIER_MASK) === 0;
+    }
+
+    /**
+     * Whether the method is protected.
+     *
+     * @return bool
+     */
+    public function isProtected() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_PROTECTED);
+    }
+
+    /**
+     * Whether the method is private.
+     *
+     * @return bool
+     */
+    public function isPrivate() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_PRIVATE);
+    }
+
+    /**
+     * Whether the method is abstract.
+     *
+     * @return bool
+     */
+    public function isAbstract() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_ABSTRACT);
+    }
+
+    /**
+     * Whether the method is final.
+     *
+     * @return bool
+     */
+    public function isFinal() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_FINAL);
+    }
+
+    /**
+     * Whether the method is static.
+     *
+     * @return bool
+     */
+    public function isStatic() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_STATIC);
+    }
+
+    /**
+     * Whether the method is magic.
+     *
+     * @return bool
+     */
+    public function isMagic() : bool {
+        return isset(self::$magicNames[$this->name->toLowerString()]);
+    }
+
+    public function getType() : string {
+        return 'Stmt_ClassMethod';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Class_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Class_.php
new file mode 100644
index 000000000..b290aaf6d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Class_.php
@@ -0,0 +1,112 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Error;
+use PhpParser\Node;
+
+class Class_ extends ClassLike
+{
+    const MODIFIER_PUBLIC    =  1;
+    const MODIFIER_PROTECTED =  2;
+    const MODIFIER_PRIVATE   =  4;
+    const MODIFIER_STATIC    =  8;
+    const MODIFIER_ABSTRACT  = 16;
+    const MODIFIER_FINAL     = 32;
+    const MODIFIER_READONLY  = 64;
+
+    const VISIBILITY_MODIFIER_MASK = 7; // 1 | 2 | 4
+
+    /** @var int Type */
+    public $flags;
+    /** @var null|Node\Name Name of extended class */
+    public $extends;
+    /** @var Node\Name[] Names of implemented interfaces */
+    public $implements;
+
+    /**
+     * Constructs a class node.
+     *
+     * @param string|Node\Identifier|null $name Name
+     * @param array       $subNodes   Array of the following optional subnodes:
+     *                                'flags'       => 0      : Flags
+     *                                'extends'     => null   : Name of extended class
+     *                                'implements'  => array(): Names of implemented interfaces
+     *                                'stmts'       => array(): Statements
+     *                                'attrGroups'  => array(): PHP attribute groups
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct($name, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->flags = $subNodes['flags'] ?? $subNodes['type'] ?? 0;
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->extends = $subNodes['extends'] ?? null;
+        $this->implements = $subNodes['implements'] ?? [];
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'flags', 'name', 'extends', 'implements', 'stmts'];
+    }
+
+    /**
+     * Whether the class is explicitly abstract.
+     *
+     * @return bool
+     */
+    public function isAbstract() : bool {
+        return (bool) ($this->flags & self::MODIFIER_ABSTRACT);
+    }
+
+    /**
+     * Whether the class is final.
+     *
+     * @return bool
+     */
+    public function isFinal() : bool {
+        return (bool) ($this->flags & self::MODIFIER_FINAL);
+    }
+
+    /**
+     * Whether the class is anonymous.
+     *
+     * @return bool
+     */
+    public function isAnonymous() : bool {
+        return null === $this->name;
+    }
+
+    /**
+     * @internal
+     */
+    public static function verifyModifier($a, $b) {
+        if ($a & self::VISIBILITY_MODIFIER_MASK && $b & self::VISIBILITY_MODIFIER_MASK) {
+            throw new Error('Multiple access type modifiers are not allowed');
+        }
+
+        if ($a & self::MODIFIER_ABSTRACT && $b & self::MODIFIER_ABSTRACT) {
+            throw new Error('Multiple abstract modifiers are not allowed');
+        }
+
+        if ($a & self::MODIFIER_STATIC && $b & self::MODIFIER_STATIC) {
+            throw new Error('Multiple static modifiers are not allowed');
+        }
+
+        if ($a & self::MODIFIER_FINAL && $b & self::MODIFIER_FINAL) {
+            throw new Error('Multiple final modifiers are not allowed');
+        }
+
+        if ($a & self::MODIFIER_READONLY && $b & self::MODIFIER_READONLY) {
+            throw new Error('Multiple readonly modifiers are not allowed');
+        }
+
+        if ($a & 48 && $b & 48) {
+            throw new Error('Cannot use the final modifier on an abstract class member');
+        }
+    }
+
+    public function getType() : string {
+        return 'Stmt_Class';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Const_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Const_.php
new file mode 100644
index 000000000..e6316345e
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Const_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Const_ extends Node\Stmt
+{
+    /** @var Node\Const_[] Constant declarations */
+    public $consts;
+
+    /**
+     * Constructs a const list node.
+     *
+     * @param Node\Const_[] $consts     Constant declarations
+     * @param array         $attributes Additional attributes
+     */
+    public function __construct(array $consts, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->consts = $consts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['consts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Const';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Continue_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Continue_.php
new file mode 100644
index 000000000..24882683b
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Continue_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Continue_ extends Node\Stmt
+{
+    /** @var null|Node\Expr Number of loops to continue */
+    public $num;
+
+    /**
+     * Constructs a continue node.
+     *
+     * @param null|Node\Expr $num        Number of loops to continue
+     * @param array          $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $num = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->num = $num;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['num'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Continue';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/DeclareDeclare.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/DeclareDeclare.php
new file mode 100644
index 000000000..ac07f30c7
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/DeclareDeclare.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class DeclareDeclare extends Node\Stmt
+{
+    /** @var Node\Identifier Key */
+    public $key;
+    /** @var Node\Expr Value */
+    public $value;
+
+    /**
+     * Constructs a declare key=>value pair node.
+     *
+     * @param string|Node\Identifier $key        Key
+     * @param Node\Expr              $value      Value
+     * @param array                  $attributes Additional attributes
+     */
+    public function __construct($key, Node\Expr $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->key = \is_string($key) ? new Node\Identifier($key) : $key;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['key', 'value'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_DeclareDeclare';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Declare_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Declare_.php
new file mode 100644
index 000000000..f46ff0baf
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Declare_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Declare_ extends Node\Stmt
+{
+    /** @var DeclareDeclare[] List of declares */
+    public $declares;
+    /** @var Node\Stmt[]|null Statements */
+    public $stmts;
+
+    /**
+     * Constructs a declare node.
+     *
+     * @param DeclareDeclare[] $declares   List of declares
+     * @param Node\Stmt[]|null $stmts      Statements
+     * @param array            $attributes Additional attributes
+     */
+    public function __construct(array $declares, array $stmts = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->declares = $declares;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['declares', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Declare';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Do_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Do_.php
new file mode 100644
index 000000000..78e90da03
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Do_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Do_ extends Node\Stmt
+{
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+    /** @var Node\Expr Condition */
+    public $cond;
+
+    /**
+     * Constructs a do while node.
+     *
+     * @param Node\Expr   $cond       Condition
+     * @param Node\Stmt[] $stmts      Statements
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $cond, array $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['stmts', 'cond'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Do';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Echo_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Echo_.php
new file mode 100644
index 000000000..7cc50d5d6
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Echo_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Echo_ extends Node\Stmt
+{
+    /** @var Node\Expr[] Expressions */
+    public $exprs;
+
+    /**
+     * Constructs an echo node.
+     *
+     * @param Node\Expr[] $exprs      Expressions
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $exprs, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->exprs = $exprs;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['exprs'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Echo';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ElseIf_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ElseIf_.php
new file mode 100644
index 000000000..eef1ece32
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/ElseIf_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class ElseIf_ extends Node\Stmt
+{
+    /** @var Node\Expr Condition */
+    public $cond;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs an elseif node.
+     *
+     * @param Node\Expr   $cond       Condition
+     * @param Node\Stmt[] $stmts      Statements
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $cond, array $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_ElseIf';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Else_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Else_.php
new file mode 100644
index 000000000..0e61778e2
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Else_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Else_ extends Node\Stmt
+{
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs an else node.
+     *
+     * @param Node\Stmt[] $stmts      Statements
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Else';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/EnumCase.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/EnumCase.php
new file mode 100644
index 000000000..5beff8b39
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/EnumCase.php
@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\AttributeGroup;
+
+class EnumCase extends Node\Stmt
+{
+    /** @var Node\Identifier Enum case name */
+    public $name;
+    /** @var Node\Expr|null Enum case expression */
+    public $expr;
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    /**
+     * @param string|Node\Identifier    $name       Enum case name
+     * @param Node\Expr|null            $expr       Enum case expression
+     * @param AttributeGroup[]          $attrGroups PHP attribute groups
+     * @param array                     $attributes Additional attributes
+     */
+    public function __construct($name, Node\Expr $expr = null, array $attrGroups = [], array $attributes = []) {
+        parent::__construct($attributes);
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->expr = $expr;
+        $this->attrGroups = $attrGroups;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'name', 'expr'];
+    }
+
+    public function getType() : string {
+        return 'Stmt_EnumCase';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Enum_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Enum_.php
new file mode 100644
index 000000000..3a50c225d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Enum_.php
@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Enum_ extends ClassLike
+{
+    /** @var null|Node\Identifier Scalar Type */
+    public $scalarType;
+    /** @var Node\Name[] Names of implemented interfaces */
+    public $implements;
+
+    /**
+     * @param string|Node\Identifier|null $name       Name
+     * @param array                       $subNodes   Array of the following optional subnodes:
+     *                                                'scalarType'  => null    : Scalar type
+     *                                                'implements'  => array() : Names of implemented interfaces
+     *                                                'stmts'       => array() : Statements
+     *                                                'attrGroups'  => array() : PHP attribute groups
+     * @param array                       $attributes Additional attributes
+     */
+    public function __construct($name, array $subNodes = [], array $attributes = []) {
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->scalarType = $subNodes['scalarType'] ?? null;
+        $this->implements = $subNodes['implements'] ?? [];
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+
+        parent::__construct($attributes);
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'name', 'scalarType', 'implements', 'stmts'];
+    }
+
+    public function getType() : string {
+        return 'Stmt_Enum';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Expression.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Expression.php
new file mode 100644
index 000000000..99d1687de
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Expression.php
@@ -0,0 +1,33 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+/**
+ * Represents statements of type "expr;"
+ */
+class Expression extends Node\Stmt
+{
+    /** @var Node\Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an expression statement.
+     *
+     * @param Node\Expr $expr       Expression
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Expression';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Finally_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Finally_.php
new file mode 100644
index 000000000..d55b8b687
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Finally_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Finally_ extends Node\Stmt
+{
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a finally node.
+     *
+     * @param Node\Stmt[] $stmts      Statements
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Finally';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/For_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/For_.php
new file mode 100644
index 000000000..1323d37cf
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/For_.php
@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class For_ extends Node\Stmt
+{
+    /** @var Node\Expr[] Init expressions */
+    public $init;
+    /** @var Node\Expr[] Loop conditions */
+    public $cond;
+    /** @var Node\Expr[] Loop expressions */
+    public $loop;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a for loop node.
+     *
+     * @param array $subNodes   Array of the following optional subnodes:
+     *                          'init'  => array(): Init expressions
+     *                          'cond'  => array(): Loop conditions
+     *                          'loop'  => array(): Loop expressions
+     *                          'stmts' => array(): Statements
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->init = $subNodes['init'] ?? [];
+        $this->cond = $subNodes['cond'] ?? [];
+        $this->loop = $subNodes['loop'] ?? [];
+        $this->stmts = $subNodes['stmts'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['init', 'cond', 'loop', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_For';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Foreach_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Foreach_.php
new file mode 100644
index 000000000..0556a7ce5
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Foreach_.php
@@ -0,0 +1,47 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Foreach_ extends Node\Stmt
+{
+    /** @var Node\Expr Expression to iterate */
+    public $expr;
+    /** @var null|Node\Expr Variable to assign key to */
+    public $keyVar;
+    /** @var bool Whether to assign value by reference */
+    public $byRef;
+    /** @var Node\Expr Variable to assign value to */
+    public $valueVar;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a foreach node.
+     *
+     * @param Node\Expr $expr       Expression to iterate
+     * @param Node\Expr $valueVar   Variable to assign value to
+     * @param array     $subNodes   Array of the following optional subnodes:
+     *                              'keyVar' => null   : Variable to assign key to
+     *                              'byRef'  => false  : Whether to assign value by reference
+     *                              'stmts'  => array(): Statements
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $expr, Node\Expr $valueVar, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+        $this->keyVar = $subNodes['keyVar'] ?? null;
+        $this->byRef = $subNodes['byRef'] ?? false;
+        $this->valueVar = $valueVar;
+        $this->stmts = $subNodes['stmts'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr', 'keyVar', 'byRef', 'valueVar', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Foreach';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Function_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Function_.php
new file mode 100644
index 000000000..abb7ee5c8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Function_.php
@@ -0,0 +1,77 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\FunctionLike;
+
+class Function_ extends Node\Stmt implements FunctionLike
+{
+    /** @var bool Whether function returns by reference */
+    public $byRef;
+    /** @var Node\Identifier Name */
+    public $name;
+    /** @var Node\Param[] Parameters */
+    public $params;
+    /** @var null|Node\Identifier|Node\Name|Node\ComplexType Return type */
+    public $returnType;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    /** @var Node\Name Namespaced name (if using NameResolver) */
+    public $namespacedName;
+
+    /**
+     * Constructs a function node.
+     *
+     * @param string|Node\Identifier $name Name
+     * @param array  $subNodes   Array of the following optional subnodes:
+     *                           'byRef'      => false  : Whether to return by reference
+     *                           'params'     => array(): Parameters
+     *                           'returnType' => null   : Return type
+     *                           'stmts'      => array(): Statements
+     *                           'attrGroups' => array(): PHP attribute groups
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct($name, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->byRef = $subNodes['byRef'] ?? false;
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->params = $subNodes['params'] ?? [];
+        $returnType = $subNodes['returnType'] ?? null;
+        $this->returnType = \is_string($returnType) ? new Node\Identifier($returnType) : $returnType;
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'byRef', 'name', 'params', 'returnType', 'stmts'];
+    }
+
+    public function returnsByRef() : bool {
+        return $this->byRef;
+    }
+
+    public function getParams() : array {
+        return $this->params;
+    }
+
+    public function getReturnType() {
+        return $this->returnType;
+    }
+
+    public function getAttrGroups() : array {
+        return $this->attrGroups;
+    }
+
+    /** @return Node\Stmt[] */
+    public function getStmts() : array {
+        return $this->stmts;
+    }
+
+    public function getType() : string {
+        return 'Stmt_Function';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Global_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Global_.php
new file mode 100644
index 000000000..a0022ad93
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Global_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Global_ extends Node\Stmt
+{
+    /** @var Node\Expr[] Variables */
+    public $vars;
+
+    /**
+     * Constructs a global variables list node.
+     *
+     * @param Node\Expr[] $vars       Variables to unset
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $vars, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->vars = $vars;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['vars'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Global';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Goto_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Goto_.php
new file mode 100644
index 000000000..24a57f780
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Goto_.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Stmt;
+
+class Goto_ extends Stmt
+{
+    /** @var Identifier Name of label to jump to */
+    public $name;
+
+    /**
+     * Constructs a goto node.
+     *
+     * @param string|Identifier $name       Name of label to jump to
+     * @param array             $attributes Additional attributes
+     */
+    public function __construct($name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Goto';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/GroupUse.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/GroupUse.php
new file mode 100644
index 000000000..24520d223
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/GroupUse.php
@@ -0,0 +1,39 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+
+class GroupUse extends Stmt
+{
+    /** @var int Type of group use */
+    public $type;
+    /** @var Name Prefix for uses */
+    public $prefix;
+    /** @var UseUse[] Uses */
+    public $uses;
+
+    /**
+     * Constructs a group use node.
+     *
+     * @param Name     $prefix     Prefix for uses
+     * @param UseUse[] $uses       Uses
+     * @param int      $type       Type of group use
+     * @param array    $attributes Additional attributes
+     */
+    public function __construct(Name $prefix, array $uses, int $type = Use_::TYPE_NORMAL, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->type = $type;
+        $this->prefix = $prefix;
+        $this->uses = $uses;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['type', 'prefix', 'uses'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_GroupUse';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/HaltCompiler.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/HaltCompiler.php
new file mode 100644
index 000000000..8e624e0f1
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/HaltCompiler.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Stmt;
+
+class HaltCompiler extends Stmt
+{
+    /** @var string Remaining text after halt compiler statement. */
+    public $remaining;
+
+    /**
+     * Constructs a __halt_compiler node.
+     *
+     * @param string $remaining  Remaining text after halt compiler statement.
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(string $remaining, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->remaining = $remaining;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['remaining'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_HaltCompiler';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/If_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/If_.php
new file mode 100644
index 000000000..a1bae4bf8
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/If_.php
@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class If_ extends Node\Stmt
+{
+    /** @var Node\Expr Condition expression */
+    public $cond;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+    /** @var ElseIf_[] Elseif clauses */
+    public $elseifs;
+    /** @var null|Else_ Else clause */
+    public $else;
+
+    /**
+     * Constructs an if node.
+     *
+     * @param Node\Expr $cond       Condition
+     * @param array     $subNodes   Array of the following optional subnodes:
+     *                              'stmts'   => array(): Statements
+     *                              'elseifs' => array(): Elseif clauses
+     *                              'else'    => null   : Else clause
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $cond, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->elseifs = $subNodes['elseifs'] ?? [];
+        $this->else = $subNodes['else'] ?? null;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'stmts', 'elseifs', 'else'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_If';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/InlineHTML.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/InlineHTML.php
new file mode 100644
index 000000000..0711d2842
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/InlineHTML.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Stmt;
+
+class InlineHTML extends Stmt
+{
+    /** @var string String */
+    public $value;
+
+    /**
+     * Constructs an inline HTML node.
+     *
+     * @param string $value      String
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(string $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['value'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_InlineHTML';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Interface_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Interface_.php
new file mode 100644
index 000000000..4d587dd48
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Interface_.php
@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Interface_ extends ClassLike
+{
+    /** @var Node\Name[] Extended interfaces */
+    public $extends;
+
+    /**
+     * Constructs a class node.
+     *
+     * @param string|Node\Identifier $name Name
+     * @param array  $subNodes   Array of the following optional subnodes:
+     *                           'extends'    => array(): Name of extended interfaces
+     *                           'stmts'      => array(): Statements
+     *                           'attrGroups' => array(): PHP attribute groups
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct($name, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->extends = $subNodes['extends'] ?? [];
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'name', 'extends', 'stmts'];
+    }
+
+    public function getType() : string {
+        return 'Stmt_Interface';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Label.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Label.php
new file mode 100644
index 000000000..3edcb3be7
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Label.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Stmt;
+
+class Label extends Stmt
+{
+    /** @var Identifier Name */
+    public $name;
+
+    /**
+     * Constructs a label node.
+     *
+     * @param string|Identifier $name       Name
+     * @param array             $attributes Additional attributes
+     */
+    public function __construct($name, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Label';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Namespace_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Namespace_.php
new file mode 100644
index 000000000..c63204577
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Namespace_.php
@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Namespace_ extends Node\Stmt
+{
+    /* For use in the "kind" attribute */
+    const KIND_SEMICOLON = 1;
+    const KIND_BRACED = 2;
+
+    /** @var null|Node\Name Name */
+    public $name;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a namespace node.
+     *
+     * @param null|Node\Name   $name       Name
+     * @param null|Node\Stmt[] $stmts      Statements
+     * @param array            $attributes Additional attributes
+     */
+    public function __construct(Node\Name $name = null, $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Namespace';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Nop.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Nop.php
new file mode 100644
index 000000000..f86f8df7d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Nop.php
@@ -0,0 +1,17 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+/** Nop/empty statement (;). */
+class Nop extends Node\Stmt
+{
+    public function getSubNodeNames() : array {
+        return [];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Nop';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Property.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Property.php
new file mode 100644
index 000000000..bc781bbff
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Property.php
@@ -0,0 +1,91 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\ComplexType;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+
+class Property extends Node\Stmt
+{
+    /** @var int Modifiers */
+    public $flags;
+    /** @var PropertyProperty[] Properties */
+    public $props;
+    /** @var null|Identifier|Name|ComplexType Type declaration */
+    public $type;
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+
+    /**
+     * Constructs a class property list node.
+     *
+     * @param int                                     $flags      Modifiers
+     * @param PropertyProperty[]                      $props      Properties
+     * @param array                                   $attributes Additional attributes
+     * @param null|string|Identifier|Name|ComplexType $type       Type declaration
+     * @param Node\AttributeGroup[]                   $attrGroups PHP attribute groups
+     */
+    public function __construct(int $flags, array $props, array $attributes = [], $type = null, array $attrGroups = []) {
+        $this->attributes = $attributes;
+        $this->flags = $flags;
+        $this->props = $props;
+        $this->type = \is_string($type) ? new Identifier($type) : $type;
+        $this->attrGroups = $attrGroups;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'flags', 'type', 'props'];
+    }
+
+    /**
+     * Whether the property is explicitly or implicitly public.
+     *
+     * @return bool
+     */
+    public function isPublic() : bool {
+        return ($this->flags & Class_::MODIFIER_PUBLIC) !== 0
+            || ($this->flags & Class_::VISIBILITY_MODIFIER_MASK) === 0;
+    }
+
+    /**
+     * Whether the property is protected.
+     *
+     * @return bool
+     */
+    public function isProtected() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_PROTECTED);
+    }
+
+    /**
+     * Whether the property is private.
+     *
+     * @return bool
+     */
+    public function isPrivate() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_PRIVATE);
+    }
+
+    /**
+     * Whether the property is static.
+     *
+     * @return bool
+     */
+    public function isStatic() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_STATIC);
+    }
+
+    /**
+     * Whether the property is readonly.
+     *
+     * @return bool
+     */
+    public function isReadonly() : bool {
+        return (bool) ($this->flags & Class_::MODIFIER_READONLY);
+    }
+
+    public function getType() : string {
+        return 'Stmt_Property';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/PropertyProperty.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/PropertyProperty.php
new file mode 100644
index 000000000..205731e20
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/PropertyProperty.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class PropertyProperty extends Node\Stmt
+{
+    /** @var Node\VarLikeIdentifier Name */
+    public $name;
+    /** @var null|Node\Expr Default */
+    public $default;
+
+    /**
+     * Constructs a class property node.
+     *
+     * @param string|Node\VarLikeIdentifier $name       Name
+     * @param null|Node\Expr                $default    Default value
+     * @param array                         $attributes Additional attributes
+     */
+    public function __construct($name, Node\Expr $default = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Node\VarLikeIdentifier($name) : $name;
+        $this->default = $default;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'default'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_PropertyProperty';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Return_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Return_.php
new file mode 100644
index 000000000..efc578c58
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Return_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Return_ extends Node\Stmt
+{
+    /** @var null|Node\Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a return node.
+     *
+     * @param null|Node\Expr $expr       Expression
+     * @param array          $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $expr = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Return';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/StaticVar.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/StaticVar.php
new file mode 100644
index 000000000..29584560d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/StaticVar.php
@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+
+class StaticVar extends Node\Stmt
+{
+    /** @var Expr\Variable Variable */
+    public $var;
+    /** @var null|Node\Expr Default value */
+    public $default;
+
+    /**
+     * Constructs a static variable node.
+     *
+     * @param Expr\Variable  $var         Name
+     * @param null|Node\Expr $default    Default value
+     * @param array          $attributes Additional attributes
+     */
+    public function __construct(
+        Expr\Variable $var, Node\Expr $default = null, array $attributes = []
+    ) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->default = $default;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'default'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_StaticVar';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Static_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Static_.php
new file mode 100644
index 000000000..464898ffa
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Static_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Stmt;
+
+class Static_ extends Stmt
+{
+    /** @var StaticVar[] Variable definitions */
+    public $vars;
+
+    /**
+     * Constructs a static variables list node.
+     *
+     * @param StaticVar[] $vars       Variable definitions
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $vars, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->vars = $vars;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['vars'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Static';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Switch_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Switch_.php
new file mode 100644
index 000000000..2c8dae022
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Switch_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Switch_ extends Node\Stmt
+{
+    /** @var Node\Expr Condition */
+    public $cond;
+    /** @var Case_[] Case list */
+    public $cases;
+
+    /**
+     * Constructs a case node.
+     *
+     * @param Node\Expr $cond       Condition
+     * @param Case_[]   $cases      Case list
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $cond, array $cases, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->cases = $cases;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'cases'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Switch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Throw_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Throw_.php
new file mode 100644
index 000000000..a34e2b362
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Throw_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Throw_ extends Node\Stmt
+{
+    /** @var Node\Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a legacy throw statement node.
+     *
+     * @param Node\Expr $expr       Expression
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['expr'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Throw';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUse.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUse.php
new file mode 100644
index 000000000..9e97053b4
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUse.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class TraitUse extends Node\Stmt
+{
+    /** @var Node\Name[] Traits */
+    public $traits;
+    /** @var TraitUseAdaptation[] Adaptations */
+    public $adaptations;
+
+    /**
+     * Constructs a trait use node.
+     *
+     * @param Node\Name[]          $traits      Traits
+     * @param TraitUseAdaptation[] $adaptations Adaptations
+     * @param array                $attributes  Additional attributes
+     */
+    public function __construct(array $traits, array $adaptations = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->traits = $traits;
+        $this->adaptations = $adaptations;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['traits', 'adaptations'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_TraitUse';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation.php
new file mode 100644
index 000000000..8bdd2c041
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation.php
@@ -0,0 +1,13 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+abstract class TraitUseAdaptation extends Node\Stmt
+{
+    /** @var Node\Name|null Trait name */
+    public $trait;
+    /** @var Node\Identifier Method name */
+    public $method;
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation/Alias.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation/Alias.php
new file mode 100644
index 000000000..a3bccbd10
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation/Alias.php
@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt\TraitUseAdaptation;
+
+use PhpParser\Node;
+
+class Alias extends Node\Stmt\TraitUseAdaptation
+{
+    /** @var null|int New modifier */
+    public $newModifier;
+    /** @var null|Node\Identifier New name */
+    public $newName;
+
+    /**
+     * Constructs a trait use precedence adaptation node.
+     *
+     * @param null|Node\Name              $trait       Trait name
+     * @param string|Node\Identifier      $method      Method name
+     * @param null|int                    $newModifier New modifier
+     * @param null|string|Node\Identifier $newName     New name
+     * @param array                       $attributes  Additional attributes
+     */
+    public function __construct($trait, $method, $newModifier, $newName, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->trait = $trait;
+        $this->method = \is_string($method) ? new Node\Identifier($method) : $method;
+        $this->newModifier = $newModifier;
+        $this->newName = \is_string($newName) ? new Node\Identifier($newName) : $newName;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['trait', 'method', 'newModifier', 'newName'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_TraitUseAdaptation_Alias';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation/Precedence.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation/Precedence.php
new file mode 100644
index 000000000..80385f64e
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TraitUseAdaptation/Precedence.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt\TraitUseAdaptation;
+
+use PhpParser\Node;
+
+class Precedence extends Node\Stmt\TraitUseAdaptation
+{
+    /** @var Node\Name[] Overwritten traits */
+    public $insteadof;
+
+    /**
+     * Constructs a trait use precedence adaptation node.
+     *
+     * @param Node\Name              $trait       Trait name
+     * @param string|Node\Identifier $method      Method name
+     * @param Node\Name[]            $insteadof   Overwritten traits
+     * @param array                  $attributes  Additional attributes
+     */
+    public function __construct(Node\Name $trait, $method, array $insteadof, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->trait = $trait;
+        $this->method = \is_string($method) ? new Node\Identifier($method) : $method;
+        $this->insteadof = $insteadof;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['trait', 'method', 'insteadof'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_TraitUseAdaptation_Precedence';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Trait_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Trait_.php
new file mode 100644
index 000000000..0cec203ac
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Trait_.php
@@ -0,0 +1,32 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Trait_ extends ClassLike
+{
+    /**
+     * Constructs a trait node.
+     *
+     * @param string|Node\Identifier $name Name
+     * @param array  $subNodes   Array of the following optional subnodes:
+     *                           'stmts'      => array(): Statements
+     *                           'attrGroups' => array(): PHP attribute groups
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct($name, array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
+        $this->stmts = $subNodes['stmts'] ?? [];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'name', 'stmts'];
+    }
+
+    public function getType() : string {
+        return 'Stmt_Trait';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TryCatch.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TryCatch.php
new file mode 100644
index 000000000..7fc158c57
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/TryCatch.php
@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class TryCatch extends Node\Stmt
+{
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+    /** @var Catch_[] Catches */
+    public $catches;
+    /** @var null|Finally_ Optional finally node */
+    public $finally;
+
+    /**
+     * Constructs a try catch node.
+     *
+     * @param Node\Stmt[]   $stmts      Statements
+     * @param Catch_[]      $catches    Catches
+     * @param null|Finally_ $finally    Optional finally node
+     * @param array         $attributes Additional attributes
+     */
+    public function __construct(array $stmts, array $catches, Finally_ $finally = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->stmts = $stmts;
+        $this->catches = $catches;
+        $this->finally = $finally;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['stmts', 'catches', 'finally'];
+    }
+
+    public function getType() : string {
+        return 'Stmt_TryCatch';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Unset_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Unset_.php
new file mode 100644
index 000000000..310e427aa
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Unset_.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class Unset_ extends Node\Stmt
+{
+    /** @var Node\Expr[] Variables to unset */
+    public $vars;
+
+    /**
+     * Constructs an unset node.
+     *
+     * @param Node\Expr[] $vars       Variables to unset
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $vars, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->vars = $vars;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['vars'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Unset';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/UseUse.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/UseUse.php
new file mode 100644
index 000000000..32bd7847d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/UseUse.php
@@ -0,0 +1,52 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+use PhpParser\Node\Identifier;
+
+class UseUse extends Node\Stmt
+{
+    /** @var int One of the Stmt\Use_::TYPE_* constants. Will only differ from TYPE_UNKNOWN for mixed group uses */
+    public $type;
+    /** @var Node\Name Namespace, class, function or constant to alias */
+    public $name;
+    /** @var Identifier|null Alias */
+    public $alias;
+
+    /**
+     * Constructs an alias (use) node.
+     *
+     * @param Node\Name              $name       Namespace/Class to alias
+     * @param null|string|Identifier $alias      Alias
+     * @param int                    $type       Type of the use element (for mixed group use only)
+     * @param array                  $attributes Additional attributes
+     */
+    public function __construct(Node\Name $name, $alias = null, int $type = Use_::TYPE_UNKNOWN, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->type = $type;
+        $this->name = $name;
+        $this->alias = \is_string($alias) ? new Identifier($alias) : $alias;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['type', 'name', 'alias'];
+    }
+
+    /**
+     * Get alias. If not explicitly given this is the last component of the used name.
+     *
+     * @return Identifier
+     */
+    public function getAlias() : Identifier {
+        if (null !== $this->alias) {
+            return $this->alias;
+        }
+
+        return new Identifier($this->name->getLast());
+    }
+    
+    public function getType() : string {
+        return 'Stmt_UseUse';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Use_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Use_.php
new file mode 100644
index 000000000..8753da313
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/Use_.php
@@ -0,0 +1,47 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node\Stmt;
+
+class Use_ extends Stmt
+{
+    /**
+     * Unknown type. Both Stmt\Use_ / Stmt\GroupUse and Stmt\UseUse have a $type property, one of them will always be
+     * TYPE_UNKNOWN while the other has one of the three other possible types. For normal use statements the type on the
+     * Stmt\UseUse is unknown. It's only the other way around for mixed group use declarations.
+     */
+    const TYPE_UNKNOWN = 0;
+    /** Class or namespace import */
+    const TYPE_NORMAL = 1;
+    /** Function import */
+    const TYPE_FUNCTION = 2;
+    /** Constant import */
+    const TYPE_CONSTANT = 3;
+
+    /** @var int Type of alias */
+    public $type;
+    /** @var UseUse[] Aliases */
+    public $uses;
+
+    /**
+     * Constructs an alias (use) list node.
+     *
+     * @param UseUse[] $uses       Aliases
+     * @param int      $type       Type of alias
+     * @param array    $attributes Additional attributes
+     */
+    public function __construct(array $uses, int $type = self::TYPE_NORMAL, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->type = $type;
+        $this->uses = $uses;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['type', 'uses'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_Use';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/While_.php b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/While_.php
new file mode 100644
index 000000000..f41034f8c
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/Stmt/While_.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+use PhpParser\Node;
+
+class While_ extends Node\Stmt
+{
+    /** @var Node\Expr Condition */
+    public $cond;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    /**
+     * Constructs a while node.
+     *
+     * @param Node\Expr   $cond       Condition
+     * @param Node\Stmt[] $stmts      Statements
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(Node\Expr $cond, array $stmts = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->cond = $cond;
+        $this->stmts = $stmts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['cond', 'stmts'];
+    }
+    
+    public function getType() : string {
+        return 'Stmt_While';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/UnionType.php b/vendor/nikic/php-parser/lib/PhpParser/Node/UnionType.php
new file mode 100644
index 000000000..61c2d8106
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/UnionType.php
@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+class UnionType extends ComplexType
+{
+    /** @var (Identifier|Name)[] Types */
+    public $types;
+
+    /**
+     * Constructs a union type.
+     *
+     * @param (Identifier|Name)[] $types      Types
+     * @param array               $attributes Additional attributes
+     */
+    public function __construct(array $types, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->types = $types;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['types'];
+    }
+    
+    public function getType() : string {
+        return 'UnionType';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/VarLikeIdentifier.php b/vendor/nikic/php-parser/lib/PhpParser/Node/VarLikeIdentifier.php
new file mode 100644
index 000000000..a30807a6d
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/VarLikeIdentifier.php
@@ -0,0 +1,17 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+/**
+ * Represents a name that is written in source code with a leading dollar,
+ * but is not a proper variable. The leading dollar is not stored as part of the name.
+ *
+ * Examples: Names in property declarations are formatted as variables. Names in static property
+ * lookups are also formatted as variables.
+ */
+class VarLikeIdentifier extends Identifier
+{
+    public function getType() : string {
+        return 'VarLikeIdentifier';
+    }
+}
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Node/VariadicPlaceholder.php b/vendor/nikic/php-parser/lib/PhpParser/Node/VariadicPlaceholder.php
new file mode 100644
index 000000000..403a24df2
--- /dev/null
+++ b/vendor/nikic/php-parser/lib/PhpParser/Node/VariadicPlaceholder.php
@@ -0,0 +1,27 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+/**
+ * Represents the "..." in "foo(...)" of the first-class callable syntax.
+ */
+class VariadicPlaceholder extends NodeAbstract {
+    /**
+     * Create a variadic argument placeholder (first-class callable syntax).
+     *
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $attributes = []) {
+        $this->attributes = $attributes;
+    }
+
+    public function getType(): string {
+        return 'VariadicPlaceholder';
+    }
+
+    public function getSubNodeNames(): array {
+        return [];
+    }
+}
\ No newline at end of file