Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.0)
// Compass (v1.0.0)
// SassyJSON (v1.1.8)
// ----

@import "SassyJSON";

@mixin eq($add) {
  
  $add: map-merge(('eq-' + inspect(&): &), $add);
  
  @if ( variable-exists(map) ) {
    $map: map-merge($map, $add) !global;  
  } @else {
    $map: $add !global;
  }

}

.edward {
  @include eq(
    ('h': 300)
  );
}

.laurie {
  @include eq(
    ('w': 500)
  );
}

@include json-encode($map);

SassMeister-output.css

/*! json-encode: {"eq-(.edward,)": [[".edward"]], "h": 300, "eq-(.laurie,)": [[".laurie"]], "w": 500} */
body::before {
  content: '{"eq-(.edward,)": [[".edward"]], "h": 300, "eq-(.laurie,)": [[".laurie"]], "w": 500}';
  display: block;
  height: 0;
  overflow: hidden;
  width: 0;
}

head {
  font-family: '{"eq-(.edward,)": [[".edward"]], "h": 300, "eq-(.laurie,)": [[".laurie"]], "w": 500}';
}

@media -json-encode {
  json {
    json: '{"eq-(.edward,)": [[".edward"]], "h": 300, "eq-(.laurie,)": [[".laurie"]], "w": 500}';
  }
}