pdepend PHPStan intergration

composer.json

{
    "name": "pdepend/pdepend",
    "description": "Official version of pdepend to be handled with Composer",
    "license": "BSD-3-Clause",
    "type": "library",
    "require": {
        "php": ">=5.3.7",
        "symfony/dependency-injection": "^2.3.0|^3|^4",
        "symfony/filesystem": "^2.3.0|^3|^4",
        "symfony/config": "^2.3.0|^3|^4"
    },
    "require-dev": {
        "phpunit/phpunit": "^4.8.35|^5.7",
        "squizlabs/php_codesniffer": "^2.0.0",
        "gregwar/rst": "^1.0",
        "easy-doc/easy-doc": "0.0.0 || ^1.2.3",
        "phpstan/phpstan": "^0.11.15"
    },
    "bin": ["src/bin/pdepend"],
    "autoload": {
        "psr-4": {"PDepend\\": "src/main/php/PDepend"}
    },
    "autoload-dev": {
        "psr-4": {"PDepend\\PHPStan\\": "src/PHPStan"}
    },
    "scripts": {
        "test": "phpunit",
        "cs-check": "phpcs -p --standard=PSR2 --runtime-set ignore_errors_on_exit 1 --runtime-set ignore_warnings_on_exit 1 ./src/main/php ./src/test/php",
        "cs-fix": "phpcbf -p --standard=PSR2 --runtime-set ignore_errors_on_exit 1 --runtime-set ignore_warnings_on_exit 1 ./src/main/php ./src/test/php",
        "build-website": "easy-doc build src/site/config.php --verbose"
    }
}

PHPBuilderDynamicReturnTypeExtension.php

<?php declare(strict_types = 1);

namespace PDepend\PHPStan\Type;

use PDepend\Source\Language\PHP\PHPBuilder;
use PhpParser\Node\Expr\MethodCall;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Reflection\ParametersAcceptorSelector;
use PHPStan\Type\Constant\ConstantStringType;
use PHPStan\Type\ObjectType;
use PHPStan\Type\Type;
use PHPStan\Type\TypeCombinator;

class PHPBuilderDynamicReturnTypeExtension implements \PHPStan\Type\DynamicMethodReturnTypeExtension
{

	/** @var int[] */
	private $methods = [
		'buildAstNodeInstance' => 0,
	];

	public function getClass(): string
	{
		return PHPBuilder::class;
	}

	public function isMethodSupported(MethodReflection $methodReflection): bool
	{
		return array_key_exists($methodReflection->getName(), $this->methods);
	}

	public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type
	{
		$argumentIndex = $this->methods[$methodReflection->getName()];
		$parametersAcceptor = ParametersAcceptorSelector::selectSingle($methodReflection->getVariants());
		if (!isset($methodCall->args[$argumentIndex])) {
			return $parametersAcceptor->getReturnType();
		}
		$argType = $scope->getType($methodCall->args[$argumentIndex]->value);
		if (!$argType instanceof ConstantStringType) {
			return $parametersAcceptor->getReturnType();
		}

		$class = $argType->getValue();

		return TypeCombinator::intersect(
			new ObjectType("\\PDepend\\Source\\AST\\{$class}"),
			$parametersAcceptor->getReturnType()
		);
	}
}

phpstan.neon

includes:
	- vendor/phpstan/phpstan/conf/config.level2.neon
parameters:
	paths:
		- src/main
	excludes_analyse:
		- src/main/php/PDepend/DbusUI/ResultPrinter.php
		- src/main/php/PDepend/Util/ImageConvert.php
	universalObjectCratesClasses:
		- PDepend\Util\Configuration
	ignoreErrors:
		- '#Call to an undefined method#'
		- '#does not call parent constructor from#'
services:
	-
		class: PDepend\PHPStan\Type\PHPBuilderDynamicReturnTypeExtension
		tags:
			- phpstan.broker.dynamicMethodReturnTypeExtension