Nesting interpolated selectors under other rules

[sunyatasattva]

I can write this:

.define(@var){
    #namespace {
         @foo: @var;
    }
}

.define(0);

.test {
      #namespace;
      property: @foo;
 }

Outputs:

 .test {
      property: 0;
 }

I cannot write this:

 .define(@var, @ns){
     #@{ns} {
          @foo: @var;
     }
 }   

 .define(0, namespace);

 .test {
      #namespace;
      property: @foo;
 } 

Outputs:

Name error: #namespace is undefined even though it is defined. And it is verifiable with the following LESS:

 .define(@var, @ns){
     #@{ns} {
          @foo: @var;
          prop: @foo;
     }
 }

 .define(0, namespace);

Outputs:

  #namespace {
       prop: 0;
  }

Am I making some mistakes or this is a bug?

[lukeapage]

It is debatable whether this is a bug or a feature request.. it was never intended to be able to call mixins defined via interpolation. There is a issue somewhere about this already and an explanation of why it is technically difficult but alas I cannot find it at the moment.

[sunyatasattva]

I believe you are speaking about #1399, aren't you?

[lukeapage]

yes.. closed as duplicate