Remove dependency on Symfony DI

Author: lookyman

composer.json

@@ -11,8 +11,7 @@
     }
   ],
   "require": {
-    "php": "^7.0",
-    "symfony/dependency-injection": "^3.2|^4.0"
+    "php": "^7.0"
   },
   "require-dev": {
     "jakub-onderka/php-parallel-lint": "^0.9.2",

src/Rules/ContainerInterfacePrivateServiceRule.php

@@ -11,7 +11,6 @@
 use PhpParser\Node;
 use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\MethodCall;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 final class ContainerInterfacePrivateServiceRule implements Rule
 {
@@ -36,7 +35,7 @@ public function processNode(Node $node, Scope $scope): array
 		if ($node instanceof MethodCall && $node->name === 'get') {
 			$type = $scope->getType($node->var);
 			if ($type instanceof ObjectType
-				&& $type->getClassName() === ContainerInterface::class
+				&& $type->getClassName() === 'Symfony\Component\DependencyInjection\ContainerInterface'
 				&& isset($node->args[0])
 				&& $node->args[0] instanceof Arg
 			) {

src/Rules/ContainerInterfaceUnknownServiceRule.php

@@ -11,7 +11,6 @@
 use PhpParser\Node;
 use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\MethodCall;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 final class ContainerInterfaceUnknownServiceRule implements Rule
 {
@@ -36,7 +35,7 @@ public function processNode(Node $node, Scope $scope): array
 		if ($node instanceof MethodCall && $node->name === 'get') {
 			$type = $scope->getType($node->var);
 			if ($type instanceof ObjectType
-				&& $type->getClassName() === ContainerInterface::class
+				&& $type->getClassName() === 'Symfony\Component\DependencyInjection\ContainerInterface'
 				&& isset($node->args[0])
 				&& $node->args[0] instanceof Arg
 			) {

src/Type/ContainerInterfaceDynamicReturnTypeExtension.php

@@ -12,7 +12,6 @@
 use PHPStan\Type\Type;
 use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\MethodCall;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 final class ContainerInterfaceDynamicReturnTypeExtension implements DynamicMethodReturnTypeExtension
 {
@@ -29,7 +28,7 @@ public function __construct(ServiceMap $symfonyServiceMap)
 
 	public function getClass(): string
 	{
-		return ContainerInterface::class;
+		return 'Symfony\Component\DependencyInjection\ContainerInterface';
 	}
 
 	public function isMethodSupported(MethodReflection $methodReflection): bool

tests/Type/ContainerInterfaceDynamicReturnTypeExtensionTest.php

@@ -15,7 +15,6 @@
 use PhpParser\Node\Expr;
 use PhpParser\Node\Expr\MethodCall;
 use PhpParser\Node\Scalar\String_;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * @covers \Lookyman\PHPStan\Symfony\Type\ContainerInterfaceDynamicReturnTypeExtension
@@ -34,7 +33,7 @@ public function testImplementsDynamicMethodReturnTypeExtension()
 	public function testGetClass()
 	{
 		$extension = new ContainerInterfaceDynamicReturnTypeExtension(new ServiceMap(__DIR__ . '/../container.xml'));
-		self::assertEquals(ContainerInterface::class, $extension->getClass());
+		self::assertEquals('Symfony\Component\DependencyInjection\ContainerInterface', $extension->getClass());
 	}
 
 	public function testIsMethodSupported()