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Speed up splitlines.

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We use the python function again with the modifications we need.
I ran it with:

    python3 -m timeit  -n 10000 -s 'from jedi.common import splitlines; x = open("test_regression.py").read()'

The speed differences are quite remarkable, it's ~3 times faster:

    10000 loops, best of 3: 52.1 usec per loop

vs. the old:

    10000 loops, best of 3: 148 usec per loop

We might need to speedup splitlines with  as well. It's probably
also a factor 2-3 slower than it should be.
This commit is contained in:
Dave Halter
2017-03-09 08:58:57 +01:00
parent b814a91f29
commit 989e4bac89
2 changed files with 26 additions and 17 deletions
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4
test/test_common.py
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@@ -5,9 +5,13 @@ def test_splitlines_no_keepends():
assert splitlines('asd\r\n') == ['asd', '']
assert splitlines('asd\r\n\f') == ['asd', '\f']
assert splitlines('\fasd\r\n') == ['\fasd', '']
assert splitlines('') == ['']
assert splitlines('\n') == ['', '']
def test_splitlines_keepends():
assert splitlines('asd\r\n', keepends=True) == ['asd\r\n', '']
assert splitlines('asd\r\n\f', keepends=True) == ['asd\r\n', '\f']
assert splitlines('\fasd\r\n', keepends=True) == ['\fasd\r\n', '']
assert splitlines('', keepends=True) == ['']
assert splitlines('\n', keepends=True) == ['\n', '']