public SequenceComprehension(Block block, Parameters parameters, Region region = null)
{
this.block = block;
this.parameters = parameters;
if (region == null)
{
this.region = new Region();
RegionManager.Regions.Current.CopyAllVariablesTo(this.region);
}
else
{
this.region = region;
}
index = -1;
arrayValue = null;
sequence = null;
}
