package com.jclark.xsl.expr;

import com.jclark.xsl.om.*;

class NegateExpr extends ConvertibleNumberExpr {
  private final NumberExpr expr;

  NegateExpr(NumberExpr expr) {
    this.expr = expr;
  }

  public double eval(Node node, ExprContext context) throws XSLException {
    return -expr.eval(node, context);
  }
}