@@ -467,8 +467,8 @@ |
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467 | 467 | } |
468 | 468 | |
469 | 469 | /** |
470 | - * @param $leftNullableExpTree |
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471 | - * @param $rightNullableExpTree |
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470 | + * @param AbstractExpression|null $leftNullableExpTree |
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471 | + * @param AbstractExpression|null $rightNullableExpTree |
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472 | 472 | * @return null|AbstractExpression |
473 | 473 | */ |
474 | 474 | private function calculateResultExpression($leftNullableExpTree, $rightNullableExpTree) |