| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Type\Constant; |
| 4: | |
| 5: | use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprFloatNode; |
| 6: | use PHPStan\PhpDocParser\Ast\Type\ConstTypeNode; |
| 7: | use PHPStan\PhpDocParser\Ast\Type\TypeNode; |
| 8: | use PHPStan\Type\ConstantScalarType; |
| 9: | use PHPStan\Type\FloatType; |
| 10: | use PHPStan\Type\GeneralizePrecision; |
| 11: | use PHPStan\Type\Traits\ConstantNumericComparisonTypeTrait; |
| 12: | use PHPStan\Type\Traits\ConstantScalarTypeTrait; |
| 13: | use PHPStan\Type\Type; |
| 14: | use PHPStan\Type\UnionType; |
| 15: | use PHPStan\Type\VerbosityLevel; |
| 16: | use function abs; |
| 17: | use function ini_get; |
| 18: | use function ini_set; |
| 19: | use function is_finite; |
| 20: | use function is_nan; |
| 21: | use function str_contains; |
| 22: | |
| 23: | |
| 24: | class ConstantFloatType extends FloatType implements ConstantScalarType |
| 25: | { |
| 26: | |
| 27: | use ConstantScalarTypeTrait; |
| 28: | use ConstantScalarToBooleanTrait; |
| 29: | use ConstantNumericComparisonTypeTrait; |
| 30: | |
| 31: | |
| 32: | public function __construct(private float $value) |
| 33: | { |
| 34: | parent::__construct(); |
| 35: | } |
| 36: | |
| 37: | public function getValue(): float |
| 38: | { |
| 39: | return $this->value; |
| 40: | } |
| 41: | |
| 42: | public function equals(Type $type): bool |
| 43: | { |
| 44: | return $type instanceof self && ($this->value === $type->value || is_nan($this->value) && is_nan($type->value)); |
| 45: | } |
| 46: | |
| 47: | private function castFloatToString(float $value): string |
| 48: | { |
| 49: | $precisionBackup = ini_get('precision'); |
| 50: | ini_set('precision', '-1'); |
| 51: | try { |
| 52: | $valueStr = (string) $value; |
| 53: | if (is_finite($value) && !str_contains($valueStr, '.')) { |
| 54: | $valueStr .= '.0'; |
| 55: | } |
| 56: | |
| 57: | return $valueStr; |
| 58: | } finally { |
| 59: | ini_set('precision', $precisionBackup); |
| 60: | } |
| 61: | } |
| 62: | |
| 63: | public function describe(VerbosityLevel $level): string |
| 64: | { |
| 65: | return $level->handle( |
| 66: | static fn (): string => 'float', |
| 67: | fn (): string => $this->castFloatToString($this->value), |
| 68: | ); |
| 69: | } |
| 70: | |
| 71: | public function toString(): Type |
| 72: | { |
| 73: | if ($this->value === 0.0) { |
| 74: | return new UnionType([ |
| 75: | new ConstantStringType('0'), |
| 76: | new ConstantStringType('-0'), |
| 77: | ]); |
| 78: | } |
| 79: | |
| 80: | return new ConstantStringType((string) $this->value); |
| 81: | } |
| 82: | |
| 83: | public function toInteger(): Type |
| 84: | { |
| 85: | return new ConstantIntegerType((int) $this->value); |
| 86: | } |
| 87: | |
| 88: | public function toAbsoluteNumber(): Type |
| 89: | { |
| 90: | return new self(abs($this->value)); |
| 91: | } |
| 92: | |
| 93: | public function toArrayKey(): Type |
| 94: | { |
| 95: | return new ConstantIntegerType((int) $this->value); |
| 96: | } |
| 97: | |
| 98: | public function generalize(GeneralizePrecision $precision): Type |
| 99: | { |
| 100: | return new FloatType(); |
| 101: | } |
| 102: | |
| 103: | |
| 104: | |
| 105: | |
| 106: | public function toPhpDocNode(): TypeNode |
| 107: | { |
| 108: | return new ConstTypeNode(new ConstExprFloatNode($this->castFloatToString($this->value))); |
| 109: | } |
| 110: | |
| 111: | } |
| 112: | |