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"""A generation of a set of tasks.
Part of the Chrome build flags optimization.
This module contains the core algorithm of producing the next generation of
execution.
"""
__author__ = 'yuhenglong@google.com (Yuheng Long)'
class Generation(object):
"""A generation of a framework run.
This also contains the core implementation, reproducing new generations.
"""
def __init__(self, pool):
"""Set up the tasks set of this generation.
Args:
pool: a set of tasks to be run
"""
self._pool = pool
def Next(self):
"""Calculate the next generation.
This is the core of the framework implementation.
Returns:
A new generation.
"""
def Pool(self):
"""Return the task set of this generation."""
pass
def Improve(self):
"""True if this generation has improvement over its parent generation."""
pass
def GetBest(self):
"""Get the best flagset."""
return self._pool[0]
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