| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Type\Generic; |
| 4: | |
| 5: | use PHPStan\PhpDocParser\Ast\Type\GenericTypeNode; |
| 6: | use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode; |
| 7: | use PHPStan\PhpDocParser\Ast\Type\TypeNode; |
| 8: | use PHPStan\Reflection\ClassReflection; |
| 9: | use PHPStan\ShouldNotHappenException; |
| 10: | use PHPStan\Type\CompoundType; |
| 11: | use PHPStan\Type\IsSuperTypeOfResult; |
| 12: | use PHPStan\Type\NeverType; |
| 13: | use PHPStan\Type\ObjectType; |
| 14: | use PHPStan\Type\StaticType; |
| 15: | use PHPStan\Type\Type; |
| 16: | use PHPStan\Type\TypeCombinator; |
| 17: | use PHPStan\Type\TypeWithClassName; |
| 18: | use function array_key_exists; |
| 19: | use function array_map; |
| 20: | use function count; |
| 21: | |
| 22: | |
| 23: | class GenericStaticType extends StaticType |
| 24: | { |
| 25: | |
| 26: | private ?ObjectType $staticObjectType = null; |
| 27: | |
| 28: | |
| 29: | |
| 30: | |
| 31: | |
| 32: | |
| 33: | public function __construct( |
| 34: | private ClassReflection $classReflection, |
| 35: | private array $types, |
| 36: | private ?Type $subtractedType, |
| 37: | private array $variances, |
| 38: | ) |
| 39: | { |
| 40: | if (count($this->types) === 0) { |
| 41: | throw new ShouldNotHappenException('Cannot create GenericStaticType with zero types.'); |
| 42: | } |
| 43: | parent::__construct($classReflection, $subtractedType); |
| 44: | } |
| 45: | |
| 46: | |
| 47: | |
| 48: | |
| 49: | public function getTypes(): array |
| 50: | { |
| 51: | return $this->types; |
| 52: | } |
| 53: | |
| 54: | |
| 55: | public function getVariances(): array |
| 56: | { |
| 57: | return $this->variances; |
| 58: | } |
| 59: | |
| 60: | public function getStaticObjectType(): ObjectType |
| 61: | { |
| 62: | if ($this->staticObjectType === null) { |
| 63: | if ($this->classReflection->isGeneric()) { |
| 64: | return $this->staticObjectType = new GenericObjectType( |
| 65: | $this->classReflection->getName(), |
| 66: | $this->types, |
| 67: | $this->subtractedType, |
| 68: | $this->classReflection, |
| 69: | $this->variances, |
| 70: | ); |
| 71: | } |
| 72: | |
| 73: | return $this->staticObjectType = parent::getStaticObjectType(); |
| 74: | } |
| 75: | |
| 76: | return $this->staticObjectType; |
| 77: | } |
| 78: | |
| 79: | public function changeBaseClass(ClassReflection $classReflection): StaticType |
| 80: | { |
| 81: | if ($classReflection->getName() === $this->getClassName()) { |
| 82: | return $this; |
| 83: | } |
| 84: | |
| 85: | if (!$classReflection->isGeneric()) { |
| 86: | return new StaticType($classReflection); |
| 87: | } |
| 88: | |
| 89: | $templateTags = $this->getClassReflection()->getTemplateTags(); |
| 90: | $i = 0; |
| 91: | $indexedTypes = []; |
| 92: | $indexedVariances = []; |
| 93: | foreach ($templateTags as $typeName => $tag) { |
| 94: | if (!array_key_exists($i, $this->types)) { |
| 95: | break; |
| 96: | } |
| 97: | if (!array_key_exists($i, $this->variances)) { |
| 98: | break; |
| 99: | } |
| 100: | $indexedTypes[$typeName] = $this->types[$i]; |
| 101: | $indexedVariances[$typeName] = $this->variances[$i]; |
| 102: | $i++; |
| 103: | } |
| 104: | |
| 105: | $newType = new GenericObjectType($classReflection->getName(), $classReflection->typeMapToList($classReflection->getTemplateTypeMap())); |
| 106: | $ancestorType = $newType->getAncestorWithClassName($this->getClassName()); |
| 107: | if ($ancestorType === null) { |
| 108: | return new self( |
| 109: | $classReflection, |
| 110: | $classReflection->typeMapToList($classReflection->getTemplateTypeMap()->resolveToBounds()), |
| 111: | $this->subtractedType, |
| 112: | $classReflection->varianceMapToList($classReflection->getCallSiteVarianceMap()), |
| 113: | ); |
| 114: | } |
| 115: | |
| 116: | $ancestorClassReflection = $ancestorType->getClassReflection(); |
| 117: | if ($ancestorClassReflection === null) { |
| 118: | return new self( |
| 119: | $classReflection, |
| 120: | $classReflection->typeMapToList($classReflection->getTemplateTypeMap()->resolveToBounds()), |
| 121: | $this->subtractedType, |
| 122: | $classReflection->varianceMapToList($classReflection->getCallSiteVarianceMap()), |
| 123: | ); |
| 124: | } |
| 125: | |
| 126: | $newClassTypes = []; |
| 127: | $newClassVariances = []; |
| 128: | foreach ($ancestorClassReflection->getActiveTemplateTypeMap()->getTypes() as $typeName => $templateType) { |
| 129: | if (!$templateType instanceof TemplateType) { |
| 130: | continue; |
| 131: | } |
| 132: | |
| 133: | if (!array_key_exists($typeName, $indexedTypes)) { |
| 134: | continue; |
| 135: | } |
| 136: | |
| 137: | $newClassTypes[$templateType->getName()] = $indexedTypes[$typeName]; |
| 138: | $newClassVariances[$templateType->getName()] = $indexedVariances[$typeName]; |
| 139: | } |
| 140: | |
| 141: | return new self($classReflection, $classReflection->typeMapToList(new TemplateTypeMap($newClassTypes)), $this->subtractedType, $classReflection->varianceMapToList(new TemplateTypeVarianceMap($newClassVariances))); |
| 142: | } |
| 143: | |
| 144: | public function isSuperTypeOf(Type $type): IsSuperTypeOfResult |
| 145: | { |
| 146: | if ($type instanceof CompoundType) { |
| 147: | return $type->isSubTypeOf($this); |
| 148: | } |
| 149: | |
| 150: | if ($type instanceof self) { |
| 151: | return $this->getStaticObjectType()->isSuperTypeOf($type->getStaticObjectType()); |
| 152: | } |
| 153: | |
| 154: | return parent::isSuperTypeOf($type)->and(IsSuperTypeOfResult::createMaybe()); |
| 155: | } |
| 156: | |
| 157: | public function traverse(callable $cb): Type |
| 158: | { |
| 159: | $subtractedType = $this->getSubtractedType() !== null ? $cb($this->getSubtractedType()) : null; |
| 160: | |
| 161: | $typesChanged = false; |
| 162: | $types = []; |
| 163: | foreach ($this->types as $type) { |
| 164: | $newType = $cb($type); |
| 165: | $types[] = $newType; |
| 166: | if ($newType === $type) { |
| 167: | continue; |
| 168: | } |
| 169: | |
| 170: | $typesChanged = true; |
| 171: | } |
| 172: | |
| 173: | if ($subtractedType !== $this->getSubtractedType() || $typesChanged) { |
| 174: | return new self( |
| 175: | $this->classReflection, |
| 176: | $types, |
| 177: | $subtractedType, |
| 178: | $this->variances, |
| 179: | ); |
| 180: | } |
| 181: | |
| 182: | return $this; |
| 183: | } |
| 184: | |
| 185: | public function traverseSimultaneously(Type $right, callable $cb): Type |
| 186: | { |
| 187: | if (!$right instanceof TypeWithClassName) { |
| 188: | return $this; |
| 189: | } |
| 190: | |
| 191: | $ancestor = $right->getAncestorWithClassName($this->getClassName()); |
| 192: | if (!$ancestor instanceof self) { |
| 193: | return $this; |
| 194: | } |
| 195: | |
| 196: | if (count($this->types) !== count($ancestor->types)) { |
| 197: | return $this; |
| 198: | } |
| 199: | |
| 200: | $typesChanged = false; |
| 201: | $types = []; |
| 202: | foreach ($this->types as $i => $leftType) { |
| 203: | $rightType = $ancestor->types[$i]; |
| 204: | $newType = $cb($leftType, $rightType); |
| 205: | $types[] = $newType; |
| 206: | if ($newType === $leftType) { |
| 207: | continue; |
| 208: | } |
| 209: | |
| 210: | $typesChanged = true; |
| 211: | } |
| 212: | |
| 213: | if ($typesChanged) { |
| 214: | return new self( |
| 215: | $this->classReflection, |
| 216: | $types, |
| 217: | null, |
| 218: | $this->variances, |
| 219: | ); |
| 220: | } |
| 221: | |
| 222: | return $this; |
| 223: | } |
| 224: | |
| 225: | public function changeSubtractedType(?Type $subtractedType): Type |
| 226: | { |
| 227: | if ($subtractedType !== null) { |
| 228: | $classReflection = $this->getClassReflection(); |
| 229: | if ($classReflection->getAllowedSubTypes() !== null) { |
| 230: | $objectType = $this->getStaticObjectType()->changeSubtractedType($subtractedType); |
| 231: | if ($objectType instanceof NeverType) { |
| 232: | return $objectType; |
| 233: | } |
| 234: | |
| 235: | if ($objectType instanceof ObjectType && $objectType->getSubtractedType() !== null) { |
| 236: | return new self($classReflection, $this->types, $objectType->getSubtractedType(), $this->variances); |
| 237: | } |
| 238: | |
| 239: | return TypeCombinator::intersect($this, $objectType); |
| 240: | } |
| 241: | } |
| 242: | |
| 243: | return new self( |
| 244: | $this->classReflection, |
| 245: | $this->types, |
| 246: | $subtractedType, |
| 247: | $this->variances, |
| 248: | ); |
| 249: | } |
| 250: | |
| 251: | public function inferTemplateTypes(Type $receivedType): TemplateTypeMap |
| 252: | { |
| 253: | return $this->getStaticObjectType()->inferTemplateTypes($receivedType); |
| 254: | } |
| 255: | |
| 256: | public function getReferencedTemplateTypes(TemplateTypeVariance $positionVariance): array |
| 257: | { |
| 258: | return $this->getStaticObjectType()->getReferencedTemplateTypes($positionVariance); |
| 259: | } |
| 260: | |
| 261: | public function toPhpDocNode(): TypeNode |
| 262: | { |
| 263: | |
| 264: | $parent = parent::toPhpDocNode(); |
| 265: | return new GenericTypeNode( |
| 266: | $parent, |
| 267: | array_map(static fn (Type $type) => $type->toPhpDocNode(), $this->types), |
| 268: | array_map(static fn (TemplateTypeVariance $variance) => $variance->toPhpDocNodeVariance(), $this->variances), |
| 269: | ); |
| 270: | } |
| 271: | |
| 272: | } |
| 273: | |