add method

Alter add(
  1. AlterClause cl
)

Implementation

Alter add(AlterClause cl) {
  if (cl is AddColumn) {
    adds[cl.name] = cl;
  } else if (cl is DropColumn) {
    drops[cl.name] = cl;
  } else if (cl is ModifyColumn) {
    mods[cl.name] = cl;
  } else {
    others.add(cl);
  }
  return this;
}