package versiontree

class Branch implements TreeNode {
  private tclstring name_
  # array of Snapshot objects, indexed by the ss number
  private tclarray children_
  private tclstring description_
  private tclbool ghost_
  
  Branch {tclstring.name tclbool.ghost} {
    set name_ $name
    set ghost_ $ghost
  }
  
  void addChild {Snapshot.ss} {
    set n [$ss getNum]
    set children_($n) $ss
  }
  
  tclbool isGhost {} {
    return $ghost_
  }
  
  tclstring getName {} {
    return $name_
  }
  
  tcllist getChildren {} {
    tcllist rclist
    
    foreach n [lsort -integer [array names children_]] {
      lappend rclist $children_($n)
    }
    
    return $rclist
  }
  
  void setDescription {tclstring.text} {
    set description_ $text
  }
  
  tclstring getDescription {} {
    return $description_
  }
  
  tclint getDepth {} {
    return [expr {[array size children_] + 1}]
  }
}