mercurial-scm/hg-stable: rust/hg-cpython/src/ref

annotate rust/hg-cpython/src/ref_sharing.rs @ 43175:a1908eb08342

rust-cpython: mark PySharedState as Sync so &'PySharedState can be Send The goal is to store &'static PySharedState in $leaked struct, which allows us to move the $leaked struct out of the macro. Currently, it depends on inner.$data_member(py), which can't be generalized. PySharedState is Sync because any mutation or read operation is synchronized by the Python GIL, py: Python<'a>, which should guarantee that &'PySharedState can be sent to another thread.

author	Yuya Nishihara <yuya@tcha.org>
date	Tue, 17 Sep 2019 07:59:25 +0900
parents	1c675c5fe5fe
children	aaec70a5f9a8

rev	line source
43082 fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	1 // ref_sharing.rs
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	2 //
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	3 // Copyright 2019 Raphaël Gomès <rgomes@octobus.net>
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	4 //
43082 fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	5 // Permission is hereby granted, free of charge, to any person obtaining a copy
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	6 // of this software and associated documentation files (the "Software"), to
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	7 // deal in the Software without restriction, including without limitation the
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	8 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	9 // sell copies of the Software, and to permit persons to whom the Software is
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	10 // furnished to do so, subject to the following conditions:
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	11 //
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	12 // The above copyright notice and this permission notice shall be included in
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	13 // all copies or substantial portions of the Software.
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	14 //
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	20 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
fdfe5cfb3723 rust-cpython: change license of ref_sharing.rs to MIT Yuya Nishihara <yuya@tcha.org> parents: 42943 diff changeset	21 // IN THE SOFTWARE.
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	22
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	23 //! Macros for use in the `hg-cpython` bridge library.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	24
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	25 use crate::exceptions::AlreadyBorrowed;
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	26 use cpython::{PyResult, Python};
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	27 use std::cell::{Cell, Ref, RefCell, RefMut};
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	28
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	29 /// Manages the shared state between Python and Rust
43173 070a38737334 rust-cpython: move py_shared_state to PySharedRefCell object Yuya Nishihara <yuya@tcha.org> parents: 43082 diff changeset	30 #[derive(Debug, Default)]
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	31 pub struct PySharedState {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	32 leak_count: Cell<usize>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	33 mutably_borrowed: Cell<bool>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	34 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	35
43175 a1908eb08342 rust-cpython: mark PySharedState as Sync so &'PySharedState can be Send Yuya Nishihara <yuya@tcha.org> parents: 43174 diff changeset	36 // &PySharedState can be Send because any access to inner cells is
a1908eb08342 rust-cpython: mark PySharedState as Sync so &'PySharedState can be Send Yuya Nishihara <yuya@tcha.org> parents: 43174 diff changeset	37 // synchronized by the GIL.
a1908eb08342 rust-cpython: mark PySharedState as Sync so &'PySharedState can be Send Yuya Nishihara <yuya@tcha.org> parents: 43174 diff changeset	38 unsafe impl Sync for PySharedState {}
a1908eb08342 rust-cpython: mark PySharedState as Sync so &'PySharedState can be Send Yuya Nishihara <yuya@tcha.org> parents: 43174 diff changeset	39
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	40 impl PySharedState {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	41 pub fn borrow_mut<'a, T>(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	42 &'a self,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	43 py: Python<'a>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	44 pyrefmut: RefMut<'a, T>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	45 ) -> PyResult<PyRefMut<'a, T>> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	46 if self.mutably_borrowed.get() {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	47 return Err(AlreadyBorrowed::new(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	48 py,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	49 "Cannot borrow mutably while there exists another \
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	50 mutable reference in a Python object",
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	51 ));
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	52 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	53 match self.leak_count.get() {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	54 0 => {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	55 self.mutably_borrowed.replace(true);
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	56 Ok(PyRefMut::new(py, pyrefmut, self))
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	57 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	58 // TODO
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	59 // For now, this works differently than Python references
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	60 // in the case of iterators.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	61 // Python does not complain when the data an iterator
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	62 // points to is modified if the iterator is never used
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	63 // afterwards.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	64 // Here, we are stricter than this by refusing to give a
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	65 // mutable reference if it is already borrowed.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	66 // While the additional safety might be argued for, it
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	67 // breaks valid programming patterns in Python and we need
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	68 // to fix this issue down the line.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	69 _ => Err(AlreadyBorrowed::new(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	70 py,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	71 "Cannot borrow mutably while there are \
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	72 immutable references in Python objects",
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	73 )),
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	74 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	75 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	76
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	77 /// Return a reference to the wrapped data with an artificial static
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	78 /// lifetime.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	79 /// We need to be protected by the GIL for thread-safety.
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	80 ///
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	81 /// # Safety
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	82 ///
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	83 /// This is highly unsafe since the lifetime of the given data can be
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	84 /// extended. Do not call this function directly.
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	85 pub unsafe fn leak_immutable<T>(
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	86 &self,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	87 py: Python,
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	88 data: &PySharedRefCell<T>,
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	89 ) -> PyResult<&'static T> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	90 if self.mutably_borrowed.get() {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	91 return Err(AlreadyBorrowed::new(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	92 py,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	93 "Cannot borrow immutably while there is a \
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	94 mutable reference in Python objects",
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	95 ));
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	96 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	97 let ptr = data.as_ptr();
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	98 self.leak_count.replace(self.leak_count.get() + 1);
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	99 Ok(&*ptr)
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	100 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	101
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	102 /// # Safety
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	103 ///
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	104 /// It's unsafe to update the reference count without knowing the
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	105 /// reference is deleted. Do not call this function directly.
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	106 pub unsafe fn decrease_leak_count(&self, _py: Python, mutable: bool) {
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	107 if mutable {
42943 06080afd0565 rust-cpython: add sanity check to PySharedState::decrease_leak_count() Yuya Nishihara <yuya@tcha.org> parents: 42897 diff changeset	108 assert_eq!(self.leak_count.get(), 0);
06080afd0565 rust-cpython: add sanity check to PySharedState::decrease_leak_count() Yuya Nishihara <yuya@tcha.org> parents: 42897 diff changeset	109 assert!(self.mutably_borrowed.get());
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	110 self.mutably_borrowed.replace(false);
42943 06080afd0565 rust-cpython: add sanity check to PySharedState::decrease_leak_count() Yuya Nishihara <yuya@tcha.org> parents: 42897 diff changeset	111 } else {
06080afd0565 rust-cpython: add sanity check to PySharedState::decrease_leak_count() Yuya Nishihara <yuya@tcha.org> parents: 42897 diff changeset	112 let count = self.leak_count.get();
06080afd0565 rust-cpython: add sanity check to PySharedState::decrease_leak_count() Yuya Nishihara <yuya@tcha.org> parents: 42897 diff changeset	113 assert!(count > 0);
06080afd0565 rust-cpython: add sanity check to PySharedState::decrease_leak_count() Yuya Nishihara <yuya@tcha.org> parents: 42897 diff changeset	114 self.leak_count.replace(count - 1);
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	115 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	116 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	117 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	118
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	119 /// `RefCell` wrapper to be safely used in conjunction with `PySharedState`.
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	120 ///
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	121 /// Only immutable operation is allowed through this interface.
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	122 #[derive(Debug)]
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	123 pub struct PySharedRefCell<T> {
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	124 inner: RefCell<T>,
43173 070a38737334 rust-cpython: move py_shared_state to PySharedRefCell object Yuya Nishihara <yuya@tcha.org> parents: 43082 diff changeset	125 pub py_shared_state: PySharedState, // TODO: remove pub
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	126 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	127
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	128 impl<T> PySharedRefCell<T> {
43173 070a38737334 rust-cpython: move py_shared_state to PySharedRefCell object Yuya Nishihara <yuya@tcha.org> parents: 43082 diff changeset	129 pub fn new(value: T) -> PySharedRefCell<T> {
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	130 Self {
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	131 inner: RefCell::new(value),
43173 070a38737334 rust-cpython: move py_shared_state to PySharedRefCell object Yuya Nishihara <yuya@tcha.org> parents: 43082 diff changeset	132 py_shared_state: PySharedState::default(),
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	133 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	134 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	135
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	136 pub fn borrow(&self) -> Ref<T> {
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	137 // py_shared_state isn't involved since
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	138 // - inner.borrow() would fail if self is mutably borrowed,
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	139 // - and inner.borrow_mut() would fail while self is borrowed.
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	140 self.inner.borrow()
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	141 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	142
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	143 pub fn as_ptr(&self) -> *mut T {
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	144 self.inner.as_ptr()
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	145 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	146
43174 1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	147 // TODO: maybe this should be named as try_borrow_mut(), and use
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	148 // inner.try_borrow_mut(). The current implementation panics if
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	149 // self.inner has been borrowed, but returns error if py_shared_state
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	150 // refuses to borrow.
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	151 pub fn borrow_mut<'a>(
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	152 &'a self,
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	153 py: Python<'a>,
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	154 ) -> PyResult<PyRefMut<'a, T>> {
1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	155 self.py_shared_state.borrow_mut(py, self.inner.borrow_mut())
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	156 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	157 }
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	158
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	159 /// Holds a mutable reference to data shared between Python and Rust.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	160 pub struct PyRefMut<'a, T> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	161 inner: RefMut<'a, T>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	162 py_shared_state: &'a PySharedState,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	163 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	164
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	165 impl<'a, T> PyRefMut<'a, T> {
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	166 // Must be constructed by PySharedState after checking its leak_count.
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	167 // Otherwise, drop() would incorrectly update the state.
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	168 fn new(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	169 _py: Python<'a>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	170 inner: RefMut<'a, T>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	171 py_shared_state: &'a PySharedState,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	172 ) -> Self {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	173 Self {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	174 inner,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	175 py_shared_state,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	176 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	177 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	178 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	179
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	180 impl<'a, T> std::ops::Deref for PyRefMut<'a, T> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	181 type Target = RefMut<'a, T>;
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	182
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	183 fn deref(&self) -> &Self::Target {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	184 &self.inner
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	185 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	186 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	187 impl<'a, T> std::ops::DerefMut for PyRefMut<'a, T> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	188 fn deref_mut(&mut self) -> &mut Self::Target {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	189 &mut self.inner
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	190 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	191 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	192
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	193 impl<'a, T> Drop for PyRefMut<'a, T> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	194 fn drop(&mut self) {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	195 let gil = Python::acquire_gil();
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	196 let py = gil.python();
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	197 unsafe {
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	198 self.py_shared_state.decrease_leak_count(py, true);
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	199 }
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	200 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	201 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	202
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	203 /// Allows a `py_class!` generated struct to share references to one of its
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	204 /// data members with Python.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	205 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	206 /// # Warning
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	207 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	208 /// TODO allow Python container types: for now, integration with the garbage
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	209 /// collector does not extend to Rust structs holding references to Python
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	210 /// objects. Should the need surface, `__traverse__` and `__clear__` will
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	211 /// need to be written as per the `rust-cpython` docs on GC integration.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	212 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	213 /// # Parameters
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	214 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	215 /// * `$name` is the same identifier used in for `py_class!` macro call.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	216 /// * `$inner_struct` is the identifier of the underlying Rust struct
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	217 /// * `$data_member` is the identifier of the data member of `$inner_struct`
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	218 /// that will be shared.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	219 /// * `$leaked` is the identifier to give to the struct that will manage
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	220 /// references to `$name`, to be used for example in other macros like
42895 ea91a126c803 rust-cpython: rename py_shared_iterator_impl to py_shared_iterator Yuya Nishihara <yuya@tcha.org> parents: 42894 diff changeset	221 /// `py_shared_iterator`.
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	222 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	223 /// # Example
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	224 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	225 /// ```
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	226 /// struct MyStruct {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	227 /// inner: Vec<u32>;
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	228 /// }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	229 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	230 /// py_class!(pub class MyType \|py\| {
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	231 /// data inner: PySharedRefCell<MyStruct>;
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	232 /// });
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	233 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	234 /// py_shared_ref!(MyType, MyStruct, inner, MyTypeLeakedRef);
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	235 /// ```
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	236 macro_rules! py_shared_ref {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	237 (
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	238 $name: ident,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	239 $inner_struct: ident,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	240 $data_member: ident,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	241 $leaked: ident,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	242 ) => {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	243 impl $name {
43174 1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	244 // TODO: remove this function in favor of inner(py).borrow_mut()
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	245 fn borrow_mut<'a>(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	246 &'a self,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	247 py: Python<'a>,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	248 ) -> PyResult<crate::ref_sharing::PyRefMut<'a, $inner_struct>>
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	249 {
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	250 // assert $data_member type
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	251 use crate::ref_sharing::PySharedRefCell;
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	252 let data: &PySharedRefCell<_> = self.$data_member(py);
43174 1c675c5fe5fe rust-cpython: move borrow_mut() to PySharedRefCell Yuya Nishihara <yuya@tcha.org> parents: 43173 diff changeset	253 data.borrow_mut(py)
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	254 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	255
42856 8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	256 /// Returns a leaked reference and its management object.
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	257 ///
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	258 /// # Safety
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	259 ///
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	260 /// It's up to you to make sure that the management object lives
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	261 /// longer than the leaked reference. Otherwise, you'll get a
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	262 /// dangling reference.
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	263 unsafe fn leak_immutable<'a>(
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	264 &'a self,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	265 py: Python<'a>,
42856 8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	266 ) -> PyResult<($leaked, &'static $inner_struct)> {
42855 8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	267 // assert $data_member type
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	268 use crate::ref_sharing::PySharedRefCell;
8db8fa1de2ef rust-cpython: introduce restricted variant of RefCell Yuya Nishihara <yuya@tcha.org> parents: 42849 diff changeset	269 let data: &PySharedRefCell<_> = self.$data_member(py);
42856 8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	270 let static_ref =
43173 070a38737334 rust-cpython: move py_shared_state to PySharedRefCell object Yuya Nishihara <yuya@tcha.org> parents: 43082 diff changeset	271 data.py_shared_state.leak_immutable(py, data)?;
42856 8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	272 let leak_handle = $leaked::new(py, self);
8f549c46bc64 rust-cpython: pair leaked reference with its manager object Yuya Nishihara <yuya@tcha.org> parents: 42855 diff changeset	273 Ok((leak_handle, static_ref))
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	274 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	275 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	276
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	277 /// Manage immutable references to `$name` leaked into Python
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	278 /// iterators.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	279 ///
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	280 /// In truth, this does not represent leaked references themselves;
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	281 /// it is instead useful alongside them to manage them.
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	282 pub struct $leaked {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	283 inner: $name,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	284 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	285
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	286 impl $leaked {
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	287 // Marked as unsafe so client code wouldn't construct $leaked
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	288 // struct by mistake. Its drop() is unsafe.
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	289 unsafe fn new(py: Python, inner: &$name) -> Self {
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	290 Self {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	291 inner: inner.clone_ref(py),
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	292 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	293 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	294 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	295
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	296 impl Drop for $leaked {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	297 fn drop(&mut self) {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	298 let gil = Python::acquire_gil();
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	299 let py = gil.python();
43173 070a38737334 rust-cpython: move py_shared_state to PySharedRefCell object Yuya Nishihara <yuya@tcha.org> parents: 43082 diff changeset	300 let state = &self.inner.$data_member(py).py_shared_state;
42857 64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	301 unsafe {
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	302 state.decrease_leak_count(py, false);
64e28b891796 rust-cpython: mark unsafe functions as such Yuya Nishihara <yuya@tcha.org> parents: 42856 diff changeset	303 }
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	304 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	305 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	306 };
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	307 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	308
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	309 /// Defines a `py_class!` that acts as a Python iterator over a Rust iterator.
42894 67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	310 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	311 /// TODO: this is a bit awkward to use, and a better (more complicated)
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	312 /// procedural macro would simplify the interface a lot.
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	313 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	314 /// # Parameters
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	315 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	316 /// * `$name` is the identifier to give to the resulting Rust struct.
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	317 /// * `$leaked` corresponds to `$leaked` in the matching `py_shared_ref!` call.
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	318 /// * `$iterator_type` is the type of the Rust iterator.
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	319 /// * `$success_func` is a function for processing the Rust `(key, value)`
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	320 /// tuple on iteration success, turning it into something Python understands.
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	321 /// * `$success_func` is the return type of `$success_func`
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	322 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	323 /// # Example
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	324 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	325 /// ```
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	326 /// struct MyStruct {
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	327 /// inner: HashMap<Vec<u8>, Vec<u8>>;
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	328 /// }
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	329 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	330 /// py_class!(pub class MyType \|py\| {
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	331 /// data inner: PySharedRefCell<MyStruct>;
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	332 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	333 /// def __iter__(&self) -> PyResult<MyTypeItemsIterator> {
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	334 /// let (leak_handle, leaked_ref) = unsafe { self.leak_immutable(py)? };
42897 5ccc08d02280 rust-cpython: leverage py_shared_iterator::from_inner() where appropriate Yuya Nishihara <yuya@tcha.org> parents: 42896 diff changeset	335 /// MyTypeItemsIterator::from_inner(
42894 67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	336 /// py,
42897 5ccc08d02280 rust-cpython: leverage py_shared_iterator::from_inner() where appropriate Yuya Nishihara <yuya@tcha.org> parents: 42896 diff changeset	337 /// leak_handle,
5ccc08d02280 rust-cpython: leverage py_shared_iterator::from_inner() where appropriate Yuya Nishihara <yuya@tcha.org> parents: 42896 diff changeset	338 /// leaked_ref.iter(),
42894 67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	339 /// )
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	340 /// }
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	341 /// });
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	342 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	343 /// impl MyType {
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	344 /// fn translate_key_value(
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	345 /// py: Python,
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	346 /// res: (&Vec<u8>, &Vec<u8>),
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	347 /// ) -> PyResult<Option<(PyBytes, PyBytes)>> {
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	348 /// let (f, entry) = res;
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	349 /// Ok(Some((
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	350 /// PyBytes::new(py, f),
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	351 /// PyBytes::new(py, entry),
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	352 /// )))
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	353 /// }
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	354 /// }
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	355 ///
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	356 /// py_shared_ref!(MyType, MyStruct, inner, MyTypeLeakedRef);
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	357 ///
42895 ea91a126c803 rust-cpython: rename py_shared_iterator_impl to py_shared_iterator Yuya Nishihara <yuya@tcha.org> parents: 42894 diff changeset	358 /// py_shared_iterator!(
42894 67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	359 /// MyTypeItemsIterator,
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	360 /// MyTypeLeakedRef,
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	361 /// HashMap<'static, Vec<u8>, Vec<u8>>,
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	362 /// MyType::translate_key_value,
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	363 /// Option<(PyBytes, PyBytes)>
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	364 /// );
67853749961b rust-cpython: replace dyn Iterator<..> of mapping with concrete type Yuya Nishihara <yuya@tcha.org> parents: 42893 diff changeset	365 /// ```
42895 ea91a126c803 rust-cpython: rename py_shared_iterator_impl to py_shared_iterator Yuya Nishihara <yuya@tcha.org> parents: 42894 diff changeset	366 macro_rules! py_shared_iterator {
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	367 (
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	368 $name: ident,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	369 $leaked: ident,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	370 $iterator_type: ty,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	371 $success_func: expr,
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	372 $success_type: ty
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	373 ) => {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	374 py_class!(pub class $name \|py\| {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	375 data inner: RefCell<Option<$leaked>>;
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	376 data it: RefCell<$iterator_type>;
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	377
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	378 def __next__(&self) -> PyResult<$success_type> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	379 let mut inner_opt = self.inner(py).borrow_mut();
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	380 if inner_opt.is_some() {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	381 match self.it(py).borrow_mut().next() {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	382 None => {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	383 // replace Some(inner) by None, drop $leaked
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	384 inner_opt.take();
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	385 Ok(None)
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	386 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	387 Some(res) => {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	388 $success_func(py, res)
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	389 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	390 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	391 } else {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	392 Ok(None)
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	393 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	394 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	395
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	396 def __iter__(&self) -> PyResult<Self> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	397 Ok(self.clone_ref(py))
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	398 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	399 });
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	400
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	401 impl $name {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	402 pub fn from_inner(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	403 py: Python,
42896 74d67c645278 rust-cpython: remove Option<_> from interface of py_shared_iterator Yuya Nishihara <yuya@tcha.org> parents: 42895 diff changeset	404 leaked: $leaked,
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	405 it: $iterator_type
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	406 ) -> PyResult<Self> {
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	407 Self::create_instance(
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	408 py,
42896 74d67c645278 rust-cpython: remove Option<_> from interface of py_shared_iterator Yuya Nishihara <yuya@tcha.org> parents: 42895 diff changeset	409 RefCell::new(Some(leaked)),
42768 30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	410 RefCell::new(it)
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	411 )
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	412 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	413 }
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	414 };
30320c7bf79f rust-cpython: add macro for sharing references Rapha?l Gom?s <rgomes@octobus.net> parents: diff changeset	415 }

Mercurial > public > mercurial-scm > hg-stable

annotate rust/hg-cpython/src/ref_sharing.rs @ 43175:a1908eb08342