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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Code\Reflection\Support; |
| 16 | |
| 17 | /** |
| 18 | * Interface hierarchy resolver class |
| 19 | * |
| 20 | * Shared by ClassReflection and InterfaceReflection, which previously each carried their own |
| 21 | * identical copy of this filter. |
| 22 | * |
| 23 | * @category Pop |
| 24 | * @package Pop\Code |
| 25 | * @author Nick Sagona, III <dev@noladev.com> |
| 26 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 27 | * @license https://www.popphp.org/license New BSD License |
| 28 | * @version 6.0.0 |
| 29 | */ |
| 30 | class InterfaceHierarchyResolver |
| 31 | { |
| 32 | |
| 33 | /** |
| 34 | * Filter a ReflectionClass::getInterfaces() result down to the interfaces directly declared |
| 35 | * here -- getInterfaces() returns the full transitive closure, so a candidate is excluded if |
| 36 | * it's already reachable via $excludeNames (e.g. a parent class's own interfaces) or is |
| 37 | * implied by another candidate already in the set (i.e. reported by that candidate's own |
| 38 | * getInterfaceNames(), meaning it isn't a distinct direct declaration here). |
| 39 | * |
| 40 | * @param array<string, \ReflectionClass> $interfaces |
| 41 | * @param array<int, string> $excludeNames |
| 42 | * @return array<string, \ReflectionClass> |
| 43 | */ |
| 44 | public static function direct(array $interfaces, array $excludeNames = []): array |
| 45 | { |
| 46 | // getInterfaceNames() is called once per candidate here, not once per candidate per |
| 47 | // candidate -- the transitivity check below needs every candidate's own interface list, |
| 48 | // not just the one currently being tested. |
| 49 | $interfaceNamesByCandidate = []; |
| 50 | foreach ($interfaces as $otherName => $other) { |
| 51 | $interfaceNamesByCandidate[$otherName] = $other->getInterfaceNames(); |
| 52 | } |
| 53 | |
| 54 | $direct = []; |
| 55 | |
| 56 | foreach ($interfaces as $candidateName => $candidate) { |
| 57 | if (in_array($candidateName, $excludeNames, true)) { |
| 58 | continue; |
| 59 | } |
| 60 | |
| 61 | $isTransitive = false; |
| 62 | foreach ($interfaceNamesByCandidate as $otherName => $otherInterfaceNames) { |
| 63 | if (($otherName !== $candidateName) && in_array($candidateName, $otherInterfaceNames, true)) { |
| 64 | $isTransitive = true; |
| 65 | break; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | if (!$isTransitive) { |
| 70 | $direct[$candidateName] = $candidate; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | return $direct; |
| 75 | } |
| 76 | |
| 77 | } |