Add Composer autoloading functions and PHPStan for testing

vendor/nikic/php-parser/lib/PhpParser/Internal/PrintableNewAnonClassNode.php

@@ -0,0 +1,57 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Internal;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+
+/**
+ * This node is used internally by the format-preserving pretty printer to print anonymous classes.
+ *
+ * The normal anonymous class structure violates assumptions about the order of token offsets.
+ * Namely, the constructor arguments are part of the Expr\New_ node and follow the class node, even
+ * though they are actually interleaved with them. This special node type is used temporarily to
+ * restore a sane token offset order.
+ *
+ * @internal
+ */
+class PrintableNewAnonClassNode extends Expr
+{
+    /** @var Node\Arg[] Arguments */
+    public $args;
+    /** @var null|Node\Name Name of extended class */
+    public $extends;
+    /** @var Node\Name[] Names of implemented interfaces */
+    public $implements;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    public function __construct(
+        array $args, Node\Name $extends = null, array $implements, array $stmts, array $attributes
+    ) {
+        parent::__construct($attributes);
+        $this->args = $args;
+        $this->extends = $extends;
+        $this->implements = $implements;
+        $this->stmts = $stmts;
+    }
+
+    public static function fromNewNode(Expr\New_ $newNode) {
+        $class = $newNode->class;
+        assert($class instanceof Node\Stmt\Class_);
+        // We don't assert that $class->name is null here, to allow consumers to assign unique names
+        // to anonymous classes for their own purposes. We simplify ignore the name here.
+        return new self(
+            $newNode->args, $class->extends, $class->implements,
+            $class->stmts, $newNode->getAttributes()
+        );
+    }
+
+    public function getType() : string {
+        return 'Expr_PrintableNewAnonClass';
+    }
+
+    public function getSubNodeNames() : array {
+        return ['args', 'extends', 'implements', 'stmts'];
+    }
+}