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<?php |
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|
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namespace TablePress\PhpOffice\PhpSpreadsheet\Calculation; |
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|
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/** |
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* A dedicated Calculation singleton for formula parsing only. |
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* |
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* This class provides an isolated instance specifically for parsing formulas |
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* without branch pruning, avoiding state conflicts with the main Calculation |
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* singleton used for cell value calculations. |
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* |
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* @internal |
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*/ |
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final class CalculationParserOnly extends Calculation |
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{ |
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/** |
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* Instance of this class. |
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*/ |
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private static ?CalculationParserOnly $parserInstance = null; |
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|
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/** |
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* Branch pruning is disabled by default for parsing-only operations. |
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*/ |
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protected bool $branchPruningEnabled = false; |
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|
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/** |
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* Get the singleton instance of this parser-only calculator. |
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*/ |
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public static function getParserInstance(): self |
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{ |
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if (!self::$parserInstance) { |
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self::$parserInstance = new self(); |
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} |
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|
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return self::$parserInstance; |
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} |
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|
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/** @param mixed $enabled Unused, property will always be false in this class */ |
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public function setBranchPruningEnabled($enabled): self |
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{ |
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return $this; |
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} |
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} |
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