Resolve addition with NAN to NAN during operator strength reduction (…

…address #16)
Muqsit · Nov 3, 2022 · 3c9b8a0 · 3c9b8a0
1 parent b9dd31e
commit 3c9b8a0
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/muqsit/arithmexp/expression/optimizer/OperatorStrengthReductionExpressionOptimizer.php b/src/muqsit/arithmexp/expression/optimizer/OperatorStrengthReductionExpressionOptimizer.php
@@ -230,6 +230,7 @@ private function processBinaryExpression(Parser $parser, Expression $expression,
 			"+" => match(true){
 				$this->valueEquals($left, 0) => $right,
 				$this->valueEquals($right, 0) => $left,
+				$this->valueIsNan($left), $this->valueIsNan($right) => [new NumericLiteralExpressionToken(Util::positionContainingExpressionTokens([...$left, ...$right]), NAN)],
 				default => $this->processAddition($parser, $operator_token, $left, $right)
 			},
 			"-" => match(true){