fix

Author: staabm

src/Type/IntersectionType.php

@@ -802,7 +802,13 @@ public function getIterableValueType(): Type
 	{
 		$result = $this->intersectTypes(static fn (Type $type): Type => $type->getIterableValueType());
 		if ($this->isCallable()->yes() && $this->isArray()->yes()) {
-			return TypeCombinator::intersect($result, new UnionType([new ObjectWithoutClassType(), new StringType()]));
+			return TypeCombinator::intersect(
+				$result,
+				new UnionType([
+					new ObjectWithoutClassType(),
+					new IntersectionType([new StringType(), new AccessoryNonEmptyStringType()]),
+				])
+			);
 		}
 		return $result;
 	}

tests/PHPStan/Rules/Methods/MissingMethodParameterTypehintRuleTest.php

@@ -152,7 +152,7 @@ public function testBug14549(): void
 	{
 		$this->analyse([__DIR__ . '/data/bug-14549.php'], [
 			[
-				'Method Bug14549\MondayMorning::call() has parameter $task with no signature specified for callable.',
+				'Method Bug14549\Foo::doFoo() has parameter $task with no signature specified for callable.',
 				12,
 			],
 		]);

tests/PHPStan/Rules/Methods/data/bug-14549.php

@@ -13,7 +13,7 @@ public function doFoo(array $task): void
 	{
 		foreach($task as $k => $v) {
 			assertType('0|1', $k);
-			assertType('object|string', $v);
+			assertType('object|non-empty-string', $v);
 		}
 		assertType('class-string|object', $task[0]);
 		assertType('string', $task[1]);
@@ -34,7 +34,7 @@ public function doBar(array $list): void
 
 				foreach($list as $k => $v) {
 					assertType('0|1', $k);
-					assertType('string', $v);
+					assertType('non-empty-string', $v);
 				}
 			}
 		}