2 less.strictMath = true;
5 return new(less.tree.Dimension)(a.value + b.value);
7 increment: function(a) {
8 return new(less.tree.Dimension)(a.value + 1);
10 _color: function(str) {
11 if (str.value === "evil red") {
12 return new(less.tree.Color)("600");