diff options
| author | Clément Lafont <johnrazeur@gmail.com> | 2020-01-13 20:09:18 +0300 |
|---|---|---|
| committer | Bruce Wells <brucekwells@gmail.com> | 2020-01-13 20:09:18 +0300 |
| commit | 707e22029d8bcfc93918eaca27905d14e376d3b5 (patch) | |
| tree | 2a52c65e50cf995dbad15110e1f434b35a6df275 /src/NXP/Classes/Token/TokenMinus.php | |
| parent | ff550b4180ac88bf1dd2425e137f459342fef0a7 (diff) | |
Left bracket and minus fix (#55)V1.1.2
* Left bracket and minus fix (#54)
* Add test for left bracket and minus fix #55
Diffstat (limited to 'src/NXP/Classes/Token/TokenMinus.php')
| -rw-r--r-- | src/NXP/Classes/Token/TokenMinus.php | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/NXP/Classes/Token/TokenMinus.php b/src/NXP/Classes/Token/TokenMinus.php index d8ac079..b4b04e3 100644 --- a/src/NXP/Classes/Token/TokenMinus.php +++ b/src/NXP/Classes/Token/TokenMinus.php @@ -53,8 +53,12 @@ class TokenMinus extends AbstractOperator $op2 = array_pop($stack); $op1 = array_pop($stack); - if ($op1 === null || $op2 === null) { - throw new IncorrectExpressionException("Subtraction requires two operators"); + if ($op2 === null) { + throw new IncorrectExpressionException("Subtraction requires right operator"); + } + + if (!$op1) { + $op1 = new TokenNumber(0); } $result = $op1->getValue() - $op2->getValue(); |