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#!/usr/bin/env python
#
# Copyright (c), 2022, SISSA (International School for Advanced Studies).
# All rights reserved.
# This file is distributed under the terms of the MIT License.
# See the file 'LICENSE' in the root directory of the present
# distribution, or http://opensource.org/licenses/MIT.
#
# @author Davide Brunato <brunato@sissa.it>
#
from timeit import timeit
from elementpath.sequences import xlist # noqa
def run_timeit(stmt='pass', setup='pass', number=1000):
seconds = timeit(stmt, setup=setup, number=number)
print("{}: {}s".format(stmt, seconds))
if __name__ == '__main__':
print('*' * 68)
print("*** Memory and timing profile of XPath null values alternatives ***")
print('*' * 68)
print()
NUMBER = 1000
SETUP = 'from __main__ import xlist'
print("*** Profile evaluation ***\n")
run_timeit('[None for _ in range(10000)]', SETUP, NUMBER)
run_timeit('[[] for _ in range(10000)]', SETUP, NUMBER)
run_timeit('[xlist() for _ in range(10000)]', SETUP, NUMBER)
run_timeit('[[] for _ in range(10000)]', SETUP, NUMBER)
run_timeit('[() for _ in range(10000)]', SETUP, NUMBER)
run_timeit('xlist([1])', SETUP, NUMBER)
run_timeit('[xlist() for _ in range(10000)]', SETUP, NUMBER)
run_timeit('[xlist() for _ in range(10000)]', SETUP, NUMBER)
print()
run_timeit('[x for x in range(10000)]', SETUP, NUMBER)
run_timeit('tuple([x for x in range(10000)])', SETUP, NUMBER)
run_timeit('list([x for x in range(10000)])', SETUP, NUMBER)
run_timeit('xlist([x for x in range(10000)])', SETUP, NUMBER)
run_timeit('\nv = [x for x in range(10000)]\nfor _ in v: pass', SETUP, NUMBER)
run_timeit('\nv = tuple([x for x in range(10000)])\nfor _ in v: pass', SETUP, NUMBER)
run_timeit('\nv = list([x for x in range(10000)])\nfor _ in v: pass', SETUP, NUMBER)
run_timeit('\nv = xlist([x for x in range(10000)])\nfor _ in v: pass', SETUP, NUMBER)
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