Add Composer autoloading functions and PHPStan for testing

vendor/nikic/php-parser/lib/PhpParser/Builder/Interface_.php

@@ -0,0 +1,75 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+
+class Interface_ extends Declaration
+{
+    protected $name;
+    protected $extends = [];
+    protected $constants = [];
+    protected $methods = [];
+
+    /**
+     * Creates an interface builder.
+     *
+     * @param string $name Name of the interface
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Extends one or more interfaces.
+     *
+     * @param Name|string ...$interfaces Names of interfaces to extend
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function extend(...$interfaces) {
+        foreach ($interfaces as $interface) {
+            $this->extends[] = BuilderHelpers::normalizeName($interface);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Stmt|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $stmt = BuilderHelpers::normalizeNode($stmt);
+
+        if ($stmt instanceof Stmt\ClassConst) {
+            $this->constants[] = $stmt;
+        } elseif ($stmt instanceof Stmt\ClassMethod) {
+            // we erase all statements in the body of an interface method
+            $stmt->stmts = null;
+            $this->methods[] = $stmt;
+        } else {
+            throw new \LogicException(sprintf('Unexpected node of type "%s"', $stmt->getType()));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns the built interface node.
+     *
+     * @return Stmt\Interface_ The built interface node
+     */
+    public function getNode() : PhpParser\Node {
+        return new Stmt\Interface_($this->name, [
+            'extends' => $this->extends,
+            'stmts' => array_merge($this->constants, $this->methods),
+        ], $this->attributes);
+    }
+}