* 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

49 files changed, 2092 insertions, 0 deletions

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';
+    }
+}