(lhs, rhs Expression)
| 530 | } |
| 531 | |
| 532 | func Plus(lhs, rhs Expression) Expression { |
| 533 | return &binaryExpression{ |
| 534 | lhs: lhs, |
| 535 | rhs: rhs, |
| 536 | operator: []byte(" + "), |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | func Minus(lhs, rhs Expression) Expression { |
| 541 | return &binaryExpression{ |