xpath-ts2/src/operations/unary-minus-operation.ts

DOM 3 and 4 XPath 1.0 implementation for browser and Node.js environment with support for typescript 5.

import { XPathContext } from '../xpath-types';
import { UnaryOperation } from './unary-operation';

export class UnaryMinusOperation extends UnaryOperation {
  evaluate(c: XPathContext) {
    return this.rhs.evaluate(c).number.negate();
  }

  toString() {
    return '-' + this.rhs.toString();
  }
}