(function (tree) {
tree.Negative = function (node) {
this.value = node;
}; tree.Negative.prototype = {
type: "Negative", accept: function (visitor) { this.value = visitor.visit(this.value); }, genCSS: function (env, output) { output.add('-'); this.value.genCSS(env, output); }, toCSS: tree.toCSS, eval: function (env) { if (env.isMathOn()) { return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); } return new(tree.Negative)(this.value.eval(env)); }
};
})(require('../tree'));