Contexts.eval constructor
Build Context to render the tree
options
is LessOptions or Context
Implementation
//2.2.0 TODO
factory Contexts.eval([dynamic options, List<Node> frames]) {
final Contexts context = Contexts();
evalCopyProperties(context, options);
context.frames = frames ?? <Node>[];
return context;
//2.4.0 20150315
// contexts.Eval = function(options, frames) {
// copyFromOriginal(options, this, evalCopyProperties);
//
// if (typeof this.paths === "string") { this.paths = [this.paths]; }
//
// this.frames = frames || [];
// this.importantScope = this.importantScope || [];
// };
}