(function (tree) {
tree.Alpha = function (val) {
this.value = val;
}; tree.Alpha.prototype = {
type: "Alpha", accept: function (visitor) { this.value = visitor.visit(this.value); }, eval: function (env) { if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } return this; }, genCSS: function (env, output) { output.add("alpha(opacity="); if (this.value.genCSS) { this.value.genCSS(env, output); } else { output.add(this.value); } output.add(")"); }, toCSS: tree.toCSS
};
})(require('../tree'));