swf-runtime 1.0.0-alpha9

document:
  dsl: '1.0.0'
  namespace: default
  name: for
  version: '1.0.0'
do:
  - loopColors:
      for:
        each: color
        in: '${ .colors }'
      do:
        - markProcessed:
            set:
              processed: '${ { colors: (.processed.colors + [ $color ]), indexes: (.processed.indexes + [ $index ])} }'