relnotes/next
author Simon Sapin <simon.sapin@octobus.net>
Tue, 06 Apr 2021 21:07:12 +0200
changeset 47100 caa3031c9ed5
parent 47071 3e381eb557f3
child 47758 ec77f709495c
permissions -rw-r--r--
dirstate-tree: Add tree traversal/iteration Like Python’s, Rust’s iterators are "external" in that they are driven by a caller who calls a `next` method. This is as opposed to "internal" iterators who drive themselves and call a callback for each item. Writing an internal iterator traversing a tree is easy with recursion, but internal iterators cannot rely on the call stack in that way, they must save in an explicit object all state that they need to be preserved across two `next` calls. This algorithm uses a `Vec` as a stack that contains what would be local variables on the call stack if we could use recursion. Differential Revision: https://phab.mercurial-scm.org/D10370
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== New Features ==
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 * `hg config` now has a `--source` option to show where each
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   configuration value comes from.
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== Default Format Change ==
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These changes affects newly created repositories (or new clone) done with
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Mercurial 5.8.
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== New Experimental Features ==
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== Bug Fixes ==
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== Backwards Compatibility Changes ==
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== Internal API Changes ==
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