Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.9)
// Compass (v1.0.0.alpha.20)
// ----

$a: 'body[data-type]';
$b: 'body[data-type]',
    'body[data-type=none]';

@mixin parent ($vars) {
  @if(type-of($vars)!=list){
    $vars: ($vars);
  }
  @each $var in $vars {
    #{unquote($var)} & {
      @content;
    }
  }
}

div {
  @include parent ($a) {
    float: left;
  } 
  
  @include parent ($b) {
    float: left;
  } 
}

SassMeister-output.css

body[data-type] div {
  float: left;
}
body[data-type] div {
  float: left;
}
body[data-type=none] div {
  float: left;
}