Support classExists and interfaceExists

Author: Emil Masiakowski

src/Type/BeberleiAssert/AssertHelper.php

@@ -401,6 +401,14 @@ private static function getExpressionResolvers(): array
 					new Name('method_exists'),
 					[$object, $property],
 				),
+				'classExists' => static fn (Scope $scope, Arg $value): Expr => new FuncCall(
+					new Name('class_exists'),
+					[$value],
+				),
+				'interfaceExists' => static fn (Scope $scope, Arg $value): Expr => new FuncCall(
+					new Name('interface_exists'),
+					[$value],
+				),
 				'notBlank' => static fn (Scope $scope, Arg $value): Expr => new BooleanAnd(
 					new BooleanAnd(
 						new NotIdentical(

tests/Type/BeberleiAssert/data/data.php

@@ -47,6 +47,16 @@ public function doFoo($a, $b, array $c, iterable $d, $e, $f, $g, $h, $i, $j, $k,
 		Assertion::methodExists($j, 'doBar');
 		\PHPStan\Testing\assertType('object&hasMethod(doBar)&hasProperty(foo)', $j);
 
+		/** @var string $classString */
+		$classString = doFoo();
+		Assertion::classExists($classString);
+		\PHPStan\Testing\assertType('class-string', $classString);
+
+		/** @var string $interfaceString */
+		$interfaceString = doFoo();
+		Assertion::interfaceExists($interfaceString);
+		\PHPStan\Testing\assertType('class-string', $interfaceString);
+
 		Assertion::isResource($k);
 		\PHPStan\Testing\assertType('resource', $k);