Mercurial > public > mercurial-scm > hg

annotate rust/hg-cpython/src/exceptions.rs @ 50976:4c5f6e95df84

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rust: make `Revision` a newtype This change is the one we've been building towards during this series. The aim is to make `Revision` mean more than a simple integer, holding the information that it is valid for a given revlog index. While this still allows for programmer error, since creating a revision directly and querying a different index with a "checked" revision are still possible, the friction created by the newtype will hopefully make us think twice about which type to use. Enough of the Rust ecosystem relies on the newtype pattern to be efficiently optimized away (even compiler in codegen tests?), so I'm not worried about this being a fundamental problem. [1] https://github.com/rust-lang/rust/blob/7a70647f195f6b0a0f1ebd72b1542ba91a32f43a/tests/codegen/vec-in-place.rs#L47
author Rapha?l Gom?s <rgomes@octobus.net>
date Fri, 18 Aug 2023 14:34:29 +0200
parents 3aca98a35727
children 2fb13c3f4496
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
41184
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
1 // ancestors.rs
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
2 //
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
3 // Copyright 2018 Georges Racinet <gracinet@anybox.fr>
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
4 //
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
5 // This software may be used and distributed according to the terms of the
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
6 // GNU General Public License version 2 or any later version.
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
7
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
8 //! Bindings for Rust errors
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
9 //!
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
10 //! [`GraphError`] exposes `hg::GraphError` as a subclass of `ValueError`
41349
ee943a920606 rust: error for WdirUnsupported with cpython conversion as exception
Georges Racinet <georges.racinet@octobus.net>
parents: 41184
diff changeset
11 //! but some variants of `hg::GraphError` can be converted directly to other
ee943a920606 rust: error for WdirUnsupported with cpython conversion as exception
Georges Racinet <georges.racinet@octobus.net>
parents: 41184
diff changeset
12 //! existing Python exceptions if appropriate.
41184
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
13 //!
dcf818267bc1 rust-cpython: rustdoc improvements
Georges Racinet <georges.racinet@octobus.net>
parents: 40965
diff changeset
14 //! [`GraphError`]: struct.GraphError.html
42609
326fdce22fb2 rust: switch hg-core and hg-cpython to rust 2018 edition
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42557
diff changeset
15 use cpython::{
44137
3bd77c64bc74 rust-filepatterns: remove bridge code for filepatterns-related functions
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42957
diff changeset
16 exc::{RuntimeError, ValueError},
42609
326fdce22fb2 rust: switch hg-core and hg-cpython to rust 2018 edition
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42557
diff changeset
17 py_exception, PyErr, Python,
326fdce22fb2 rust: switch hg-core and hg-cpython to rust 2018 edition
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42557
diff changeset
18 };
40965
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
19 use hg;
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
20
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50972
diff changeset
21 use crate::PyRevision;
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50972
diff changeset
22
40965
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
23 py_exception!(rustext, GraphError, ValueError);
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
24
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
25 impl GraphError {
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
26 pub fn pynew(py: Python, inner: hg::GraphError) -> PyErr {
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
27 match inner {
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
28 hg::GraphError::ParentOutOfRange(r) => {
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50972
diff changeset
29 GraphError::new(py, ("ParentOutOfRange", PyRevision(r.0)))
40965
5532823e8c18 rust-cpython: start cpython crate bindings
Georges Racinet <gracinet@anybox.fr>
parents:
diff changeset
30 }
42328
94f3a73b6672 rust-filepatterns: add `rust-cpython` bindings for `filepatterns`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 41349
diff changeset
31 }
94f3a73b6672 rust-filepatterns: add `rust-cpython` bindings for `filepatterns`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 41349
diff changeset
32 }
48519
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
33
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
34 pub fn pynew_from_vcsgraph(
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
35 py: Python,
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
36 inner: vcsgraph::graph::GraphReadError,
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
37 ) -> PyErr {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
38 match inner {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
39 vcsgraph::graph::GraphReadError::InconsistentGraphData => {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
40 GraphError::new(py, "InconsistentGraphData")
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
41 }
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
42 vcsgraph::graph::GraphReadError::InvalidKey => {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
43 GraphError::new(py, "ParentOutOfRange")
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
44 }
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
45 vcsgraph::graph::GraphReadError::KeyedInvalidKey(r) => {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
46 GraphError::new(py, ("ParentOutOfRange", r))
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
47 }
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
48 vcsgraph::graph::GraphReadError::WorkingDirectoryUnsupported => {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
49 match py
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
50 .import("mercurial.error")
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
51 .and_then(|m| m.get(py, "WdirUnsupported"))
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
52 {
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
53 Err(e) => e,
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
54 Ok(cls) => PyErr::from_instance(py, cls),
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
55 }
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
56 }
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
57 }
35ebe6f824be hg-cpython: use ancestor iterator impls from vcsgraph
pacien <pacien.trangirard@pacien.net>
parents: 44529
diff changeset
58 }
42328
94f3a73b6672 rust-filepatterns: add `rust-cpython` bindings for `filepatterns`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 41349
diff changeset
59 }
94f3a73b6672 rust-filepatterns: add `rust-cpython` bindings for `filepatterns`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 41349
diff changeset
60
42957
7a01778bc7b7 rust-hgpath: replace all paths and filenames with HgPath/HgPathBuf
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42752
diff changeset
61 py_exception!(rustext, HgPathPyError, RuntimeError);
44529
f96b28aa4b79 rust-status: update rust-cpython bridge to account for the changes in core
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44206
diff changeset
62 py_exception!(rustext, FallbackError, RuntimeError);
f96b28aa4b79 rust-status: update rust-cpython bridge to account for the changes in core
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44206
diff changeset
63 py_exception!(shared_ref, AlreadyBorrowed, RuntimeError);