| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Analyser; |
| 4: | |
| 5: | use PhpParser\Node\Expr; |
| 6: | use PHPStan\Type\Type; |
| 7: | use PHPStan\Type\TypeCombinator; |
| 8: | |
| 9: | class SpecifiedTypes |
| 10: | { |
| 11: | |
| 12: | |
| 13: | |
| 14: | |
| 15: | |
| 16: | |
| 17: | |
| 18: | public function __construct( |
| 19: | private array $sureTypes = [], |
| 20: | private array $sureNotTypes = [], |
| 21: | private bool $overwrite = false, |
| 22: | private array $newConditionalExpressionHolders = [], |
| 23: | private ?Expr $rootExpr = null, |
| 24: | ) |
| 25: | { |
| 26: | } |
| 27: | |
| 28: | |
| 29: | |
| 30: | |
| 31: | |
| 32: | public function getSureTypes(): array |
| 33: | { |
| 34: | return $this->sureTypes; |
| 35: | } |
| 36: | |
| 37: | |
| 38: | |
| 39: | |
| 40: | |
| 41: | public function getSureNotTypes(): array |
| 42: | { |
| 43: | return $this->sureNotTypes; |
| 44: | } |
| 45: | |
| 46: | public function shouldOverwrite(): bool |
| 47: | { |
| 48: | return $this->overwrite; |
| 49: | } |
| 50: | |
| 51: | |
| 52: | |
| 53: | |
| 54: | public function getNewConditionalExpressionHolders(): array |
| 55: | { |
| 56: | return $this->newConditionalExpressionHolders; |
| 57: | } |
| 58: | |
| 59: | public function getRootExpr(): ?Expr |
| 60: | { |
| 61: | return $this->rootExpr; |
| 62: | } |
| 63: | |
| 64: | |
| 65: | public function intersectWith(SpecifiedTypes $other): self |
| 66: | { |
| 67: | $sureTypeUnion = []; |
| 68: | $sureNotTypeUnion = []; |
| 69: | $rootExpr = $this->mergeRootExpr($this->rootExpr, $other->rootExpr); |
| 70: | |
| 71: | foreach ($this->sureTypes as $exprString => [$exprNode, $type]) { |
| 72: | if (!isset($other->sureTypes[$exprString])) { |
| 73: | continue; |
| 74: | } |
| 75: | |
| 76: | $sureTypeUnion[$exprString] = [ |
| 77: | $exprNode, |
| 78: | TypeCombinator::union($type, $other->sureTypes[$exprString][1]), |
| 79: | ]; |
| 80: | } |
| 81: | |
| 82: | foreach ($this->sureNotTypes as $exprString => [$exprNode, $type]) { |
| 83: | if (!isset($other->sureNotTypes[$exprString])) { |
| 84: | continue; |
| 85: | } |
| 86: | |
| 87: | $sureNotTypeUnion[$exprString] = [ |
| 88: | $exprNode, |
| 89: | TypeCombinator::intersect($type, $other->sureNotTypes[$exprString][1]), |
| 90: | ]; |
| 91: | } |
| 92: | |
| 93: | return new self($sureTypeUnion, $sureNotTypeUnion, $this->overwrite && $other->overwrite, [], $rootExpr); |
| 94: | } |
| 95: | |
| 96: | |
| 97: | public function unionWith(SpecifiedTypes $other): self |
| 98: | { |
| 99: | $sureTypeUnion = $this->sureTypes + $other->sureTypes; |
| 100: | $sureNotTypeUnion = $this->sureNotTypes + $other->sureNotTypes; |
| 101: | $rootExpr = $this->mergeRootExpr($this->rootExpr, $other->rootExpr); |
| 102: | |
| 103: | foreach ($this->sureTypes as $exprString => [$exprNode, $type]) { |
| 104: | if (!isset($other->sureTypes[$exprString])) { |
| 105: | continue; |
| 106: | } |
| 107: | |
| 108: | $sureTypeUnion[$exprString] = [ |
| 109: | $exprNode, |
| 110: | TypeCombinator::intersect($type, $other->sureTypes[$exprString][1]), |
| 111: | ]; |
| 112: | } |
| 113: | |
| 114: | foreach ($this->sureNotTypes as $exprString => [$exprNode, $type]) { |
| 115: | if (!isset($other->sureNotTypes[$exprString])) { |
| 116: | continue; |
| 117: | } |
| 118: | |
| 119: | $sureNotTypeUnion[$exprString] = [ |
| 120: | $exprNode, |
| 121: | TypeCombinator::union($type, $other->sureNotTypes[$exprString][1]), |
| 122: | ]; |
| 123: | } |
| 124: | |
| 125: | return new self($sureTypeUnion, $sureNotTypeUnion, $this->overwrite || $other->overwrite, [], $rootExpr); |
| 126: | } |
| 127: | |
| 128: | public function normalize(Scope $scope): self |
| 129: | { |
| 130: | $sureTypes = $this->sureTypes; |
| 131: | |
| 132: | foreach ($this->sureNotTypes as $exprString => [$exprNode, $sureNotType]) { |
| 133: | if (!isset($sureTypes[$exprString])) { |
| 134: | $sureTypes[$exprString] = [$exprNode, TypeCombinator::remove($scope->getType($exprNode), $sureNotType)]; |
| 135: | continue; |
| 136: | } |
| 137: | |
| 138: | $sureTypes[$exprString][1] = TypeCombinator::remove($sureTypes[$exprString][1], $sureNotType); |
| 139: | } |
| 140: | |
| 141: | return new self($sureTypes, [], $this->overwrite, $this->newConditionalExpressionHolders, $this->rootExpr); |
| 142: | } |
| 143: | |
| 144: | private function mergeRootExpr(?Expr $rootExprA, ?Expr $rootExprB): ?Expr |
| 145: | { |
| 146: | if ($rootExprA === $rootExprB) { |
| 147: | return $rootExprA; |
| 148: | } |
| 149: | |
| 150: | if ($rootExprA === null || $rootExprB === null) { |
| 151: | return $rootExprA ?? $rootExprB; |
| 152: | } |
| 153: | |
| 154: | return null; |
| 155: | } |
| 156: | |
| 157: | } |
| 158: | |