| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Type; |
| 4: | |
| 5: | use PHPStan\Internal\CombinationsHelper; |
| 6: | use PHPStan\Type\Accessory\AccessoryType; |
| 7: | use PHPStan\Type\Accessory\HasPropertyType; |
| 8: | use PHPStan\Type\Constant\ConstantIntegerType; |
| 9: | use PHPStan\Type\Generic\TemplateBenevolentUnionType; |
| 10: | use PHPStan\Type\Generic\TemplateType; |
| 11: | use PHPStan\Type\Generic\TemplateUnionType; |
| 12: | use PHPStan\Type\Traverser\LateResolvableTraverser; |
| 13: | use function array_filter; |
| 14: | use function array_map; |
| 15: | use function array_merge; |
| 16: | use function iterator_to_array; |
| 17: | |
| 18: | |
| 19: | |
| 20: | |
| 21: | final class TypeUtils |
| 22: | { |
| 23: | |
| 24: | |
| 25: | |
| 26: | |
| 27: | public static function getConstantIntegers(Type $type): array |
| 28: | { |
| 29: | return self::map(ConstantIntegerType::class, $type, false); |
| 30: | } |
| 31: | |
| 32: | |
| 33: | |
| 34: | |
| 35: | public static function getIntegerRanges(Type $type): array |
| 36: | { |
| 37: | return self::map(IntegerRangeType::class, $type, false); |
| 38: | } |
| 39: | |
| 40: | |
| 41: | |
| 42: | |
| 43: | private static function map( |
| 44: | string $typeClass, |
| 45: | Type $type, |
| 46: | bool $inspectIntersections, |
| 47: | bool $stopOnUnmatched = true, |
| 48: | ): array |
| 49: | { |
| 50: | if ($type instanceof $typeClass) { |
| 51: | return [$type]; |
| 52: | } |
| 53: | |
| 54: | if ($type instanceof UnionType) { |
| 55: | $matchingTypes = []; |
| 56: | foreach ($type->getTypes() as $innerType) { |
| 57: | $matchingInner = self::map($typeClass, $innerType, $inspectIntersections, $stopOnUnmatched); |
| 58: | |
| 59: | if ($matchingInner === []) { |
| 60: | if ($stopOnUnmatched) { |
| 61: | return []; |
| 62: | } |
| 63: | |
| 64: | continue; |
| 65: | } |
| 66: | |
| 67: | foreach ($matchingInner as $innerMapped) { |
| 68: | $matchingTypes[] = $innerMapped; |
| 69: | } |
| 70: | } |
| 71: | |
| 72: | return $matchingTypes; |
| 73: | } |
| 74: | |
| 75: | if ($inspectIntersections && $type instanceof IntersectionType) { |
| 76: | $matchingTypes = []; |
| 77: | foreach ($type->getTypes() as $innerType) { |
| 78: | if (!$innerType instanceof $typeClass) { |
| 79: | if ($stopOnUnmatched) { |
| 80: | return []; |
| 81: | } |
| 82: | |
| 83: | continue; |
| 84: | } |
| 85: | |
| 86: | $matchingTypes[] = $innerType; |
| 87: | } |
| 88: | |
| 89: | return $matchingTypes; |
| 90: | } |
| 91: | |
| 92: | return []; |
| 93: | } |
| 94: | |
| 95: | public static function toBenevolentUnion(Type $type): Type |
| 96: | { |
| 97: | if ($type instanceof BenevolentUnionType) { |
| 98: | return $type; |
| 99: | } |
| 100: | |
| 101: | if ($type instanceof UnionType) { |
| 102: | return new BenevolentUnionType($type->getTypes()); |
| 103: | } |
| 104: | |
| 105: | return $type; |
| 106: | } |
| 107: | |
| 108: | |
| 109: | |
| 110: | |
| 111: | public static function toStrictUnion(Type $type): Type |
| 112: | { |
| 113: | if ($type instanceof TemplateBenevolentUnionType) { |
| 114: | return new TemplateUnionType( |
| 115: | $type->getScope(), |
| 116: | $type->getStrategy(), |
| 117: | $type->getVariance(), |
| 118: | $type->getName(), |
| 119: | static::toStrictUnion($type->getBound()), |
| 120: | $type->getDefault(), |
| 121: | ); |
| 122: | } |
| 123: | |
| 124: | if ($type instanceof BenevolentUnionType) { |
| 125: | return new UnionType($type->getTypes()); |
| 126: | } |
| 127: | |
| 128: | return $type; |
| 129: | } |
| 130: | |
| 131: | |
| 132: | |
| 133: | |
| 134: | public static function flattenTypes(Type $type): array |
| 135: | { |
| 136: | if ($type instanceof UnionType) { |
| 137: | $types = []; |
| 138: | foreach ($type->getTypes() as $innerType) { |
| 139: | $flattenTypes = self::flattenTypes($innerType); |
| 140: | foreach ($flattenTypes as $flattenType) { |
| 141: | $types[] = $flattenType; |
| 142: | } |
| 143: | } |
| 144: | |
| 145: | return $types; |
| 146: | } |
| 147: | |
| 148: | $constantArrays = $type->getConstantArrays(); |
| 149: | if ($constantArrays !== []) { |
| 150: | $newTypes = []; |
| 151: | foreach ($constantArrays as $constantArray) { |
| 152: | $newTypes[] = $constantArray->getAllArrays(); |
| 153: | } |
| 154: | |
| 155: | return array_filter( |
| 156: | array_map( |
| 157: | static fn (array $types): Type => TypeCombinator::intersect(...$types), |
| 158: | iterator_to_array(CombinationsHelper::combinations($newTypes)), |
| 159: | ), |
| 160: | static fn (Type $type): bool => !$type instanceof NeverType, |
| 161: | ); |
| 162: | } |
| 163: | |
| 164: | return [$type]; |
| 165: | } |
| 166: | |
| 167: | public static function findThisType(Type $type): ?ThisType |
| 168: | { |
| 169: | if ($type instanceof ThisType) { |
| 170: | return $type; |
| 171: | } |
| 172: | |
| 173: | if ($type instanceof UnionType || $type instanceof IntersectionType) { |
| 174: | foreach ($type->getTypes() as $innerType) { |
| 175: | $thisType = self::findThisType($innerType); |
| 176: | if ($thisType !== null) { |
| 177: | return $thisType; |
| 178: | } |
| 179: | } |
| 180: | } |
| 181: | |
| 182: | return null; |
| 183: | } |
| 184: | |
| 185: | public static function findCallableType(Type $type): ?Type |
| 186: | { |
| 187: | if ($type->isCallable()->yes()) { |
| 188: | return $type; |
| 189: | } |
| 190: | |
| 191: | if ($type instanceof UnionType) { |
| 192: | foreach ($type->getTypes() as $innerType) { |
| 193: | $callableType = self::findCallableType($innerType); |
| 194: | if ($callableType !== null) { |
| 195: | return $callableType; |
| 196: | } |
| 197: | } |
| 198: | } |
| 199: | |
| 200: | return null; |
| 201: | } |
| 202: | |
| 203: | |
| 204: | |
| 205: | |
| 206: | public static function getHasPropertyTypes(Type $type): array |
| 207: | { |
| 208: | if ($type instanceof HasPropertyType) { |
| 209: | return [$type]; |
| 210: | } |
| 211: | |
| 212: | if ($type instanceof UnionType || $type instanceof IntersectionType) { |
| 213: | $hasPropertyTypes = [[]]; |
| 214: | foreach ($type->getTypes() as $innerType) { |
| 215: | $hasPropertyTypes[] = self::getHasPropertyTypes($innerType); |
| 216: | } |
| 217: | |
| 218: | return array_merge(...$hasPropertyTypes); |
| 219: | } |
| 220: | |
| 221: | return []; |
| 222: | } |
| 223: | |
| 224: | |
| 225: | |
| 226: | |
| 227: | public static function getAccessoryTypes(Type $type): array |
| 228: | { |
| 229: | return self::map(AccessoryType::class, $type, inspectIntersections: true, stopOnUnmatched: false); |
| 230: | } |
| 231: | |
| 232: | public static function containsTemplateType(Type $type): bool |
| 233: | { |
| 234: | $containsTemplateType = false; |
| 235: | TypeTraverser::map($type, static function (Type $type, callable $traverse) use (&$containsTemplateType): Type { |
| 236: | if ($type instanceof TemplateType) { |
| 237: | $containsTemplateType = true; |
| 238: | } |
| 239: | |
| 240: | return $containsTemplateType ? $type : $traverse($type); |
| 241: | }); |
| 242: | |
| 243: | return $containsTemplateType; |
| 244: | } |
| 245: | |
| 246: | public static function resolveLateResolvableTypes(Type $type, bool $resolveUnresolvableTypes = true): Type |
| 247: | { |
| 248: | if (!$type->hasTemplateOrLateResolvableType()) { |
| 249: | return $type; |
| 250: | } |
| 251: | |
| 252: | return TypeTraverser::map($type, new LateResolvableTraverser($resolveUnresolvableTypes)); |
| 253: | } |
| 254: | |
| 255: | } |
| 256: | |