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rust-cpython: mark all PyLeaked methods as unsafe...
rust-cpython: mark all PyLeaked methods as unsafe Unfortunately, these methods can be abused to obtain the inner 'static reference. The simplest (pseudo-code) example is: let leaked: PyLeaked<&'static _> = shared.leak_immutable(); let static_ref: &'static _ = &*leaked.try_borrow(py)?; // PyLeakedRef::deref() tries to bound the lifetime to itself, but // the underlying data is a &'static reference, so the returned // reference can be &'static. This problem can be easily fixed by coercing the lifetime, but there are many other ways to achieve that, and there wouldn't be a generic solution: let leaked: PyLeaked<&'static [_]> = shared.leak_immutable(); let leaked_iter: PyLeaked<slice::Iter<'static, _>> = unsafe { leaked.map(|v| v.iter()) }; let static_slice: &'static [_] = leaked_iter.try_borrow(py)?.as_slice(); So basically I failed to design the safe borrowing interface. Maybe we'll instead have to add much more restricted interface on top of the unsafe PyLeaked methods? For instance, Iterator::next() could be implemented if its Item type is not &'a (where 'a may be cheated.) Anyway, this seems not an easy issue, so it's probably better to leave the current interface as unsafe, and get broader comments while upstreaming this feature.
Denis Laxalde - - Load All Authors

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Gregory Szorc
packaging: move contrib/debian to contrib/packaging/...
 r38029 #!/usr/bin/make -f
# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1
CPUS=$(shell cat /proc/cpuinfo | grep -E ^processor | wc -l)
Denis Laxalde
packaging: upgrade Debian packaging to build with Python 3...
 r43615 export HGPYTHON3=1
export PYTHON=python3
Gregory Szorc
packaging: move contrib/debian to contrib/packaging/...
 r38029 %:
Denis Laxalde
packaging: upgrade Debian packaging to build with Python 3...
 r43615 dh $@ --with python3
Gregory Szorc
packaging: move contrib/debian to contrib/packaging/...
 r38029
override_dh_auto_test:
http_proxy='' dh_auto_test -- TESTFLAGS="-j$(CPUS)"
Denis Laxalde
packaging: upgrade Debian packaging to build with Python 3...
 r43615 override_dh_python3:
Denis Laxalde
packaging: use /usr/bin/python3 shebang for scripts in Debian...
 r43618 dh_python3 --shebang=/usr/bin/python3
Gregory Szorc
packaging: move contrib/debian to contrib/packaging/...
 r38029
Denis Laxalde
packaging: distinguish clean and build steps from install in Debian
 r43625 override_dh_auto_clean:
$(MAKE) cleanbutpackages
$(MAKE) -C contrib/chg clean
override_dh_auto_build:
$(MAKE) all
$(MAKE) -C contrib/chg all
Denis Laxalde
packaging: avoid running bare "make install" in debian/rules...
 r43626 override_dh_auto_install:
Denis Laxalde
packaging: upgrade Debian packaging to build with Python 3...
 r43615 python3 setup.py install --root "$(CURDIR)"/debian/mercurial --install-layout=deb
Gregory Szorc
packaging: move contrib/debian to contrib/packaging/...
 r38029 # chg
make -C contrib/chg \
DESTDIR="$(CURDIR)"/debian/mercurial \
PREFIX=/usr \
Denis Laxalde
packaging: distinguish clean and build steps from install in Debian
 r43625 install
Denis Laxalde
packaging: ship only a single binary Debian package...
 r43627 make install-doc PREFIX="$(CURDIR)"/debian/mercurial/usr
cp contrib/hg-ssh "$(CURDIR)"/debian/mercurial/usr/bin
mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/mercurial
cp contrib/hgk "$(CURDIR)"/debian/mercurial/usr/share/mercurial
mkdir -p "$(CURDIR)"/debian/mercurial/etc/mercurial/hgrc.d/
cp contrib/packaging/debian/*.rc "$(CURDIR)"/debian/mercurial/etc/mercurial/hgrc.d/
Gregory Szorc
packaging: move contrib/debian to contrib/packaging/...
 r38029 # completions
Denis Laxalde
packaging: ship only a single binary Debian package...
 r43627 mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/bash-completion/completions
cp contrib/bash_completion "$(CURDIR)"/debian/mercurial/usr/share/bash-completion/completions/hg
mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/zsh/vendor-completions
cp contrib/zsh_completion "$(CURDIR)"/debian/mercurial/usr/share/zsh/vendor-completions/_hg