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comparison rust/hg-cpython/src/exceptions.rs @ 41349:ee943a920606 stable

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rust: error for WdirUnsupported with cpython conversion as exception This introduces WorkingDirectoryUnsupported as an enum variant of GraphError in the core and converts it to the expected `mercurial.error.WdirUnsupported`.
author Georges Racinet <georges.racinet@octobus.net>
date Wed, 23 Jan 2019 07:47:04 -0500
parents dcf818267bc1
children 94f3a73b6672
comparison
equal deleted inserted replaced
41348:2f54f31c41aa 41349:ee943a920606
6 // GNU General Public License version 2 or any later version. 6 // GNU General Public License version 2 or any later version.
7 7
8 //! Bindings for Rust errors 8 //! Bindings for Rust errors
9 //! 9 //!
10 //! [`GraphError`] exposes `hg::GraphError` as a subclass of `ValueError` 10 //! [`GraphError`] exposes `hg::GraphError` as a subclass of `ValueError`
11 //! but some variants of `hg::GraphError` can be converted directly to other
12 //! existing Python exceptions if appropriate.
11 //! 13 //!
12 //! [`GraphError`]: struct.GraphError.html 14 //! [`GraphError`]: struct.GraphError.html
13 use cpython::exc::ValueError; 15 use cpython::exc::ValueError;
14 use cpython::{PyErr, Python}; 16 use cpython::{PyErr, Python};
15 use hg; 17 use hg;
20 pub fn pynew(py: Python, inner: hg::GraphError) -> PyErr { 22 pub fn pynew(py: Python, inner: hg::GraphError) -> PyErr {
21 match inner { 23 match inner {
22 hg::GraphError::ParentOutOfRange(r) => { 24 hg::GraphError::ParentOutOfRange(r) => {
23 GraphError::new(py, ("ParentOutOfRange", r)) 25 GraphError::new(py, ("ParentOutOfRange", r))
24 } 26 }
27 hg::GraphError::WorkingDirectoryUnsupported => {
28 match py
29 .import("mercurial.error")
30 .and_then(|m| m.get(py, "WdirUnsupported"))
31 {
32 Err(e) => e,
33 Ok(cls) => PyErr::from_instance(py, cls),
34 }
35 }
25 } 36 }
26 } 37 }
27 } 38 }