@if type_of($partials) == list and index($partials, direction) or type_of($partials) == string and index($partials, direction)
  .direction-row
    +direction(row)

  .direction-row-reverse
    +direction(row-reverse)

  .direction-column
    +direction(column)

  .direction-column-reverse
    +direction(column-reverse)

  @each $breakpoint-name, $breakpoint-value in $grid-breakpoints
    .direction-#{$breakpoint-name}-row
      +direction(row, $breakpoint-name)

    .direction-#{$breakpoint-name}-row-reverse
      +direction(row-reverse, $breakpoint-name)

    .direction-#{$breakpoint-name}-column
      +direction(column, $breakpoint-name)

    .direction-#{$breakpoint-name}-column-reverse
      +direction(column-reverse, $breakpoint-name)