class BACKTRACKING_POOL_OF_SEQUENCE
Summary
Overview
creation features
features
  • get_instance: X_
    Returns an instance from the current pool.
  • release_instance (inst: X_)
    Records the instance 'inst' into the current pool.
  • clear
    Removes all recorded instances from the current pool.
get_fresh_instance: BACKTRACKING_SEQUENCE
effective function
Returns a freshly created instance.
get_instance: X_
effective function
Returns an instance from the current pool.
release_instance (inst: X_)
effective procedure
Records the instance 'inst' into the current pool.
clear
effective procedure
Removes all recorded instances from the current pool.
pool_of_instances: WEAK_REFERENCE[X_]
writable attribute
Head of the recorded instances
make
effective procedure
creation