Mercurial > hg
view tests/test-narrow-debugcommands.t @ 43422:b9f791090211
rust-cpython: rename PyLeakedRef to PyLeaked
This series will make PyLeaked* behave more like a Python iterator, which
means mutation of the owner object will be allowed and the leaked reference
(i.e. the iterator) will be invalidated instead.
I'll add PyLeakedRef/PyLeakedRefMut structs which will represent a "borrowed"
state, and prevent the underlying value from being mutably borrowed while the
leaked reference is in use:
let shared = self.inner_shared(py);
let leaked = shared.leak_immutable();
{
let leaked_ref: PyLeakedRef<_> = leaked.borrow(py);
shared.borrow_mut(); // panics since the underlying value is borrowed
}
shared.borrow_mut(); // allowed
The relation between PyLeaked* structs is quite similar to RefCell/Ref/RefMut,
but the implementation can't be reused because the borrowing state will have
to be shared across objects having no lifetime relation.
PyLeaked isn't named as PyLeakedCell since it isn't actually a cell in that
leaked.borrow_mut() will require &mut self.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sat, 12 Oct 2019 19:10:51 +0900 |
parents | ce0bc2952e2a |
children | ccd76e292be5 |
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$ . "$TESTDIR/narrow-library.sh" $ hg init repo $ cd repo $ cat << EOF > .hg/store/narrowspec > [include] > path:foo > [exclude] > EOF $ cp .hg/store/narrowspec .hg/narrowspec.dirstate $ echo treemanifest >> .hg/requires $ echo narrowhg-experimental >> .hg/requires $ mkdir -p foo/bar $ echo b > foo/f $ echo c > foo/bar/f $ hg commit -Am hi adding foo/bar/f adding foo/f $ hg debugindex -m rev linkrev nodeid p1 p2 0 0 14a5d056d75a 000000000000 000000000000 $ hg debugindex --dir foo rev linkrev nodeid p1 p2 0 0 e635c7857aef 000000000000 000000000000 $ hg debugindex --dir foo/ rev linkrev nodeid p1 p2 0 0 e635c7857aef 000000000000 000000000000 $ hg debugindex --dir foo/bar rev linkrev nodeid p1 p2 0 0 e091d4224761 000000000000 000000000000 $ hg debugindex --dir foo/bar/ rev linkrev nodeid p1 p2 0 0 e091d4224761 000000000000 000000000000 $ hg debugdata -m 0 foo\x00e635c7857aef92ac761ce5741a99da159abbbb24t (esc) $ hg debugdata --dir foo 0 bar\x00e091d42247613adff5d41b67f15fe7189ee97b39t (esc) f\x001e88685f5ddec574a34c70af492f95b6debc8741 (esc) $ hg debugdata --dir foo/ 0 bar\x00e091d42247613adff5d41b67f15fe7189ee97b39t (esc) f\x001e88685f5ddec574a34c70af492f95b6debc8741 (esc) $ hg debugdata --dir foo/bar 0 f\x00149da44f2a4e14f488b7bd4157945a9837408c00 (esc) $ hg debugdata --dir foo/bar/ 0 f\x00149da44f2a4e14f488b7bd4157945a9837408c00 (esc)