Faster IntersectionType->getFiniteTypes()

Author: staabm

phpstan-baseline.neon

@@ -1425,6 +1425,12 @@ parameters:
 			count: 1
 			path: src/Type/IntersectionType.php
 
+		-
+			rawMessage: 'Doing instanceof PHPStan\Type\Enum\EnumCaseObjectType is error-prone and deprecated. Use Type::getEnumCases() instead.'
+			identifier: phpstanApi.instanceofType
+			count: 1
+			path: src/Type/IntersectionType.php
+
 		-
 			rawMessage: Doing instanceof PHPStan\Type\IntersectionType is error-prone and deprecated.
 			identifier: phpstanApi.instanceofType

src/Type/IntersectionType.php

@@ -1345,6 +1345,10 @@ public function getFiniteTypes(): array
 		foreach ($this->types as $type) {
 			$oneType = [];
 			foreach ($type->getFiniteTypes() as $finiteType) {
+				if ($finiteType instanceof EnumCaseObjectType) {
+					$oneType[$finiteType->getClassName() . '::' . $finiteType->getEnumCaseName()] = $finiteType;
+					continue;
+				}
 				$oneType[$finiteType->describe(VerbosityLevel::typeOnly())] = $finiteType;
 			}
 			$compare[] = $oneType;