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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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Takumi IINO
doc: make man and html from translated documents...
 r19426 ======
hgrc
======
---------------------------------
configuration files for Mercurial
---------------------------------
:Author: Bryan O'Sullivan <bos@serpentine.com>
:Organization: Mercurial
:Manual section: 5
:Manual group: Mercurial Manual
.. contents::
:backlinks: top
:class: htmlonly
Description
===========
.. include:: hgrc.5.gendoc.txt
Author
======
Bryan O'Sullivan <bos@serpentine.com>.
Mercurial was written by Matt Mackall <mpm@selenic.com>.
See Also
========
|hg(1)|_, |hgignore(5)|_
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=======
This manual page is copyright 2005 Bryan O'Sullivan.
av6
copyright: update to 2019...
 r41534 Mercurial is copyright 2005-2019 Matt Mackall.
Takumi IINO
doc: make man and html from translated documents...
 r19426 Free use of this software is granted under the terms of the GNU General
Public License version 2 or any later version.
.. include:: common.txt