Mercurial > hg
comparison tests/test-revlog-raw.py @ 44452:9d2b2df2c2ba
cleanup: run pyupgrade on our source tree to clean up varying things
Built with:
hg files 'set:**.py - mercurial/thirdparty/** - "contrib/python-zstandard/**" - hgext/fsmonitor/pywatchman/**' | xargs pyupgrade --keep-percent-format --keep-extraneous-parens
and then blackened. pyupgrade comes from
https://github.com/asottile/pyupgrade with a patch to let me preserve
extraneous parens (which we use for marking strings that shouldn't be
translated), and lets us clean up a bunch of idioms that have cruftily
accumulated over the years.
# skip-blame no-op automated code cleanups
Differential Revision: https://phab.mercurial-scm.org/D8255
author | Augie Fackler <augie@google.com> |
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date | Fri, 06 Mar 2020 13:27:41 -0500 |
parents | 2372284d9457 |
children | 89a2afe31e82 |
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44449:ff72bd52d56a | 44452:9d2b2df2c2ba |
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227 ''' | 227 ''' |
228 m = 2 ** n | 228 m = 2 ** n |
229 | 229 |
230 # Gray Code. See https://en.wikipedia.org/wiki/Gray_code | 230 # Gray Code. See https://en.wikipedia.org/wiki/Gray_code |
231 gray = lambda x: x ^ (x >> 1) | 231 gray = lambda x: x ^ (x >> 1) |
232 reversegray = dict((gray(i), i) for i in range(m)) | 232 reversegray = {gray(i): i for i in range(m)} |
233 | 233 |
234 # Generate (n * 2) bit gray code, yield lower n bits as X, and look for | 234 # Generate (n * 2) bit gray code, yield lower n bits as X, and look for |
235 # the next unused gray code where higher n bits equal to X. | 235 # the next unused gray code where higher n bits equal to X. |
236 | 236 |
237 # For gray codes whose higher bits are X, a[X] of them have been used. | 237 # For gray codes whose higher bits are X, a[X] of them have been used. |