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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.
Yuya Nishihara - - Load All Authors

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map-cmdline.show
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Gregory Szorc
show: add basic labels to work template...
 r32059 # TODO there are a few deficiencies in this file:
# * The "namespace" of the labels needs to be worked out. We currently
# piggyback on existing values so color works.
Denis Laxalde
show: use labelcset() template alias for work (and stack) views...
 r34878
%include map-cmdline.default
Yuya Nishihara
templater: load template fragments from [templates] section in map file...
 r34715
[templates]
Gregory Szorc
show: pass the minimum length for nodes as a template keyword...
 r34191 showbookmarks = '{if(active, "*", " ")} {pad(bookmark, longestbookmarklen + 4)}{shortest(node, nodelen)}\n'
Gregory Szorc
show: construct changeset templater during dispatch...
 r33046
Gregory Szorc
show: show all namespaces in "work" view...
 r33050 showwork = '{cset_shortnode}{namespaces % cset_namespace} {cset_shortdesc}'
Gregory Szorc
show: implement "stack" view...
 r33194 showstack = '{showwork}'
Gregory Szorc
show: construct changeset templater during dispatch...
 r33046
Denis Laxalde
show: use labelcset() template alias for work (and stack) views...
 r34878 cset_shortnode = '{labelcset(shortest(node, nodelen))}'
Gregory Szorc
show: show all namespaces in "work" view...
 r33050
# Treat branch and tags specially so we don't display "default" or "tip"
cset_namespace = '{ifeq(namespace, "branches", names_branches, ifeq(namespace, "tags", names_tags, names_others))}'
names_branches = '{ifeq(branch, "default", "", " ({label('log.{colorname}', branch)})")}'
Yuya Nishihara
show: use filter() function to strip "tip" tag...
 r38469 names_tags = '{if(filter_tags(names),
" ({label('log.{colorname}', join(filter_tags(names), ' '))})")}'
Gregory Szorc
show: show all namespaces in "work" view...
 r33050 names_others = '{if(names, " ({label('log.{colorname}', join(names, ' '))})")}'
Gregory Szorc
show: construct changeset templater during dispatch...
 r33046 cset_shortdesc = '{label("log.description", desc|firstline)}'
Yuya Nishihara
show: use filter() function to strip "tip" tag...
 r38469
[templatealias]
filter_tags(names) = filter(names, ifeq(name, 'tip', '', name))