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Refactor RegexGroupParser for more immutability and less pass-by-ref #3479
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| <?php declare(strict_types = 1); | ||
|
|
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| namespace PHPStan\Type\Regex; | ||
|
|
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| use PHPStan\TrinaryLogic; | ||
|
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| /** @immutable */ | ||
| final class RegexGroupWalkResult | ||
| { | ||
|
|
||
| /** | ||
| * @param array<string>|null $onlyLiterals | ||
| */ | ||
| public function __construct( | ||
| private bool $inOptionalQuantification, | ||
| private ?array $onlyLiterals, | ||
| private TrinaryLogic $isNonEmpty, | ||
| private TrinaryLogic $isNonFalsy, | ||
| private TrinaryLogic $isNumeric, | ||
| ) | ||
| { | ||
| } | ||
|
|
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| public static function createEmpty(): self | ||
| { | ||
| return new self( | ||
| false, | ||
| [], | ||
| TrinaryLogic::createMaybe(), | ||
| TrinaryLogic::createMaybe(), | ||
| TrinaryLogic::createMaybe(), | ||
| ); | ||
| } | ||
|
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| public function inOptionalQuantification(bool $inOptionalQuantification): self | ||
| { | ||
| return new self( | ||
| $inOptionalQuantification, | ||
| $this->onlyLiterals, | ||
| $this->isNonEmpty, | ||
| $this->isNonFalsy, | ||
| $this->isNumeric, | ||
| ); | ||
| } | ||
|
|
||
| /** | ||
| * @param array<string>|null $onlyLiterals | ||
| */ | ||
| public function onlyLiterals(?array $onlyLiterals): self | ||
| { | ||
| return new self( | ||
| $this->inOptionalQuantification, | ||
| $onlyLiterals, | ||
| $this->isNonEmpty, | ||
| $this->isNonFalsy, | ||
| $this->isNumeric, | ||
| ); | ||
| } | ||
|
|
||
| public function nonEmpty(TrinaryLogic $nonEmpty): self | ||
| { | ||
| return new self( | ||
| $this->inOptionalQuantification, | ||
| $this->onlyLiterals, | ||
| $nonEmpty, | ||
| $this->isNonFalsy, | ||
| $this->isNumeric, | ||
| ); | ||
| } | ||
|
|
||
| public function nonFalsy(TrinaryLogic $nonFalsy): self | ||
| { | ||
| return new self( | ||
| $this->inOptionalQuantification, | ||
| $this->onlyLiterals, | ||
| $this->isNonEmpty, | ||
| $nonFalsy, | ||
| $this->isNumeric, | ||
| ); | ||
| } | ||
|
|
||
| public function numeric(TrinaryLogic $numeric): self | ||
| { | ||
| return new self( | ||
| $this->inOptionalQuantification, | ||
| $this->onlyLiterals, | ||
| $this->isNonEmpty, | ||
| $this->isNonFalsy, | ||
| $numeric, | ||
| ); | ||
| } | ||
|
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| public function isInOptionalQuantification(): bool | ||
| { | ||
| return $this->inOptionalQuantification; | ||
| } | ||
|
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||
| /** | ||
| * @return array<string>|null | ||
| */ | ||
| public function getOnlyLiterals(): ?array | ||
| { | ||
| return $this->onlyLiterals; | ||
| } | ||
|
|
||
| public function isNonEmpty(): TrinaryLogic | ||
| { | ||
| return $this->isNonEmpty; | ||
| } | ||
|
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| public function isNonFalsy(): TrinaryLogic | ||
| { | ||
| return $this->isNonFalsy; | ||
| } | ||
|
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| public function isNumeric(): TrinaryLogic | ||
| { | ||
| return $this->isNumeric; | ||
| } | ||
|
|
||
| } |
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essentially I moved these by-ref parameters into a separate class without anymore by-ref semantics