This method will never return null, return a nullValue at least.
Clear values that >= fromIdx
Clear values that >= fromIdx
All instances of TVar or extended classes will be equals if they have the same values, this prevent the duplicated manage of values.
All instances of TVar or extended classes will be equals if they have the same values, this prevent the duplicated manage of values.
All instances of TVar or extended classes use identityHashCode as hashCode
All instances of TVar or extended classes use identityHashCode as hashCode
Is it an instant variable if true, or an accumulate variable if false.
Append or insert value at time
reset to nullValue
reset to nullValue
reset to nullValue
reset to nullValue
Update valye at time
Define inner Var class ----------------------------------------------------------------------- Horizontal view of DefaultSer. Is' a reference of one of the field vars.
Inner Var can only live in DefaultSer.
We define it as inner class of DefaultSer, to avoid bad usage, especially when its values is also managed by DefaultSer. We should make sure the operation on values, including add, delete actions will be consistant by cooperating with DefaultSer.