| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Type; |
| 4: | |
| 5: | use PHPStan\Type\Generic\TemplateTypeHelper; |
| 6: | |
| 7: | |
| 8: | class GenericTypeVariableResolver |
| 9: | { |
| 10: | |
| 11: | public static function getType( |
| 12: | TypeWithClassName $type, |
| 13: | string $genericClassName, |
| 14: | string $typeVariableName, |
| 15: | ): ?Type |
| 16: | { |
| 17: | $classReflection = $type->getClassReflection(); |
| 18: | if ($classReflection === null) { |
| 19: | return null; |
| 20: | } |
| 21: | $ancestorClassReflection = $classReflection->getAncestorWithClassName($genericClassName); |
| 22: | if ($ancestorClassReflection === null) { |
| 23: | return null; |
| 24: | } |
| 25: | |
| 26: | $activeTemplateTypeMap = $ancestorClassReflection->getPossiblyIncompleteActiveTemplateTypeMap(); |
| 27: | |
| 28: | $type = $activeTemplateTypeMap->getType($typeVariableName); |
| 29: | if ($type instanceof ErrorType) { |
| 30: | $templateTypeMap = $ancestorClassReflection->getTemplateTypeMap(); |
| 31: | $templateType = $templateTypeMap->getType($typeVariableName); |
| 32: | if ($templateType === null) { |
| 33: | return $type; |
| 34: | } |
| 35: | |
| 36: | $bound = TemplateTypeHelper::resolveToBounds($templateType); |
| 37: | if ($bound instanceof MixedType && $bound->isExplicitMixed()) { |
| 38: | return new MixedType(false); |
| 39: | } |
| 40: | |
| 41: | return $bound; |
| 42: | } |
| 43: | |
| 44: | return $type; |
| 45: | } |
| 46: | |
| 47: | } |
| 48: | |