Support deprecated isTraversable

Author: herndlm

README.md

@@ -42,6 +42,7 @@ This extension specifies types of values passed to:
 * `Assert::resource`
 * `Assert::isCallable`
 * `Assert::isArray`
+* `Assert::isTraversable` (deprecated, use `isIterable` or `isInstanceOf` instead)
 * `Assert::isIterable`
 * `Assert::isCountable`
 * `Assert::isInstanceOf`

src/Type/WebMozartAssert/AssertTypeSpecifyingExtension.php

@@ -304,6 +304,9 @@ private static function getExpressionResolvers(): array
 						[$value]
 					);
 				},
+				'isTraversable' => static function (Scope $scope, Arg $value): Expr {
+					return self::$resolvers['isIterable']($scope, $value);
+				},
 				'isIterable' => static function (Scope $scope, Arg $expr): Expr {
 					return new BooleanOr(
 						new FuncCall(

tests/Type/WebMozartAssert/data/type.php

@@ -142,6 +142,15 @@ public function isArray($a, $b): void
 		\PHPStan\Testing\assertType('array|null', $b);
 	}
 
+	public function isTraversable($a, $b): void
+	{
+		Assert::isTraversable($a);
+		\PHPStan\Testing\assertType('array|Traversable', $a);
+
+		Assert::nullOrIsTraversable($b);
+		\PHPStan\Testing\assertType('array|Traversable|null', $b);
+	}
+
 	public function isIterable($a, $b): void
 	{
 		Assert::isIterable($a);