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rust: module policy with importrust...
rust: module policy with importrust We introduce two rust+c module policies and a new `policy.importrust()` that makes use of them. This simple approach provides runtime switching of implementations, which is crucial for the performance measurements such as those Octobus does with ASV. It can also be useful for bug analysis. It also has the advantage of making conditionals in Rust callers more uniform, in particular abstracting over specifics like `demandimport` At this point, the build stays unchanged, with the rust-cpython based `rustext` module being built if HGWITHRUSTEXT=cpython. More transparency for the callers, i.e., just using `policy.importmod` would be a much longer term and riskier effort for the following reasons: 1. It would require to define common module boundaries for the three or four cases (pure, c, rust+ext, cffi) and that is premature with the Rust extension currently under heavy development in areas that are outside the scope of the C extensions. 2. It would imply internal API changes that are not currently wished, as the case of ancestors demonstrates. 3. The lack of data or property-like attributes (tp_member and tp_getset) in current `rust-cpython` makes it impossible to achieve direct transparent replacement of pure Python classes by Rust extension code, meaning that the caller sometimes has to be able to make adjustments or provide additional wrapping.
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Matt Mackall
Add note to CONTRIBUTORS file
 r5514 [This file is here for historical purposes, all recent contributors
should appear in the changelog directly]
Andrea Arcangeli <andrea at suse.de>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 Thomas Arendsen Hein <thomas at intevation.de>
Goffredo Baroncelli <kreijack at libero.it>
Thomas Arendsen Hein
Added new code contributors, fixed Vincent's name, added hint on encoding.
 r756 Muli Ben-Yehuda <mulix at mulix.org>
Mikael Berthe <mikael at lilotux.net>
Matt Mackall
Add Benoit to CONTRIBUTORS
 r1450 Benoit Boissinot <bboissin at gmail.com>
Brendan Cully
Add self to contributors
 r2947 Brendan Cully <brendan at kublai.com>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 Vincent Danjean <vdanjean.ml at free.fr>
Jake Edge <jake at edge2.net>
Michael Fetterman <michael.fetterman at intel.com>
Edouard Gomez <ed.gomez at free.fr>
mpm@selenic.com
CONTRIBUTORS update
 r1231 Eric Hopper <hopper at omnifarious.org>
Thomas Arendsen Hein
Added new code contributors, fixed Vincent's name, added hint on encoding.
 r756 Alecs King <alecsk at gmail.com>
Thomas Arendsen Hein
Updated CONTRIBUTORS.
 r1310 Volker Kleinfeld <Volker.Kleinfeld at gmx.de>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 Vadim Lebedev <vadim at mbdsys.com>
Christopher Li <hg at chrisli.org>
Chris Mason <mason at suse.com>
Colin McMillen
Add self to CONTRIBUTORS
 r2162 Colin McMillen <mcmillen at cs.cmu.edu>
Thomas Arendsen Hein
Updated list of contributors.
 r1080 Wojciech Milkowski <wmilkowski at interia.pl>
Thomas Arendsen Hein
Added new code contributors, fixed Vincent's name, added hint on encoding.
 r756 Chad Netzer <chad.netzer at gmail.com>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 Bryan O'Sullivan <bos at serpentine.com>
Thomas Arendsen Hein
Added new code contributors, fixed Vincent's name, added hint on encoding.
 r756 Vicent Seguí Pascual <vseguip at gmail.com>
Sean Perry <shaleh at speakeasy.net>
mpm@selenic.com
Update CONTRIBUTORS...
 r594 Nguyen Anh Quynh <aquynh at gmail.com>
Thomas Arendsen Hein
Updated CONTRIBUTORS.
 r1310 Ollivier Robert <roberto at keltia.freenix.fr>
Alexander Schremmer <alex AT alexanderweb DOT de>
Added my name to the contributors list.
 r2120 Alexander Schremmer <alex at alexanderweb.de>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 Arun Sharma <arun at sharma-home.net>
mpm@selenic.com
CONTRIBUTORS update
 r1231 Josef "Jeff" Sipek <jeffpc at optonline.net>
Thomas Arendsen Hein
Updated CONTRIBUTORS.
 r1310 Kevin Smith <yarcs at qualitycode.com>
mpm@selenic.com
CONTRIBUTORS update
 r1231 TK Soh <teekaysoh at yahoo.com>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 Radoslaw Szkodzinski <astralstorm at gorzow.mm.pl>
Thomas Arendsen Hein
Added Samuel Tardieu to contributors list.
 r851 Samuel Tardieu <sam at rfc1149.net>
mpm@selenic.com
Add a CONTRIBUTORS file...
 r519 K Thananchayan <thananck at yahoo.com>
Andrew Thompson <andrewkt at aktzero.com>
Michael S. Tsirkin <mst at mellanox.co.il>
Rafael Villar Burke <pachi at mmn-arquitectos.com>
Thomas Arendsen Hein
Added Tristan Wibberley to contributors.
 r855 Tristan Wibberley <tristan at wibberley.org>
Thomas Arendsen Hein
Added new code contributors, fixed Vincent's name, added hint on encoding.
 r756 Mark Williamson <mark.williamson at cl.cam.ac.uk>