How get root with Extend in stylus without mixin

Question

I'm learn stylus and i need to get root-element properties for his sub-classes:

.daddy-element
    (this is a root)
    main: prop
    &.sublclass
        (need "main: prop" here)
        another: prop

in sass we have $root: &, what stylus can in this situation? @mixin — bad variant with biggest css-code and its not clear for reading

here is my sass code: Codepen

Answer 1

I found a solution with placeholder selector, it isn't as clean as in SASS but is the best solution that I could achieve:

STYLUS

$placeholder
 margin-bottom: 1em

.class
  @extends $placeholder
  &.ok
     @extends $placeholder
     color: red

OUTPUT

.class,
.class.ok {
  margin-bottom: 1em;
}
.class.ok {
  color: #f00;
}