@if $x == 0 {
  @if $y == 0 {
    @error "blabla...";
  }
}

@if $x == 0 {
  @if $y == 0 {
    @if $z == 0 { /* Noncompliant ![sc=5;ec=8;secondary=-2,-1]! !{Refactor this code to not nest more than 2 control flow directives.}! */
      @error "blabla...";
    } @else if $a == 1 {
      @if $z == 1 {
        @error "blabla...";
      }
    } @else {
      @error "blabla...";
    }
  }
}
