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annotate rust/hg-cpython/src/exceptions.rs @ 44304:dbbae122f5e4

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manifest: remove optional default= argument on flags(path) It had only one caller inside manifest.py, and treemanifest was actually incorrectly implemented. treemanifest is still missing the fastdelta() method from the interface (and so doesn't yet conform), but this is at least progress. Differential Revision: https://phab.mercurial-scm.org/D8069
author Augie Fackler <augie@google.com>
date Mon, 03 Feb 2020 22:16:36 -0500
parents 9804badd5970
children f96b28aa4b79
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1 // ancestors.rs
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2 //
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3 // Copyright 2018 Georges Racinet <gracinet@anybox.fr>
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4 //
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5 // This software may be used and distributed according to the terms of the
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6 // GNU General Public License version 2 or any later version.
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7
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8 //! Bindings for Rust errors
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9 //!
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10 //! [`GraphError`] exposes `hg::GraphError` as a subclass of `ValueError`
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11 //! but some variants of `hg::GraphError` can be converted directly to other
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12 //! existing Python exceptions if appropriate.
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13 //!
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14 //! [`GraphError`]: struct.GraphError.html
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15 use cpython::{
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16 exc::{RuntimeError, ValueError},
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17 py_exception, PyErr, Python,
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18 };
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19 use hg;
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20
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21 py_exception!(rustext, GraphError, ValueError);
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22
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23 impl GraphError {
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24 pub fn pynew(py: Python, inner: hg::GraphError) -> PyErr {
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25 match inner {
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26 hg::GraphError::ParentOutOfRange(r) => {
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27 GraphError::new(py, ("ParentOutOfRange", r))
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28 }
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29 hg::GraphError::WorkingDirectoryUnsupported => {
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30 match py
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31 .import("mercurial.error")
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32 .and_then(|m| m.get(py, "WdirUnsupported"))
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33 {
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34 Err(e) => e,
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35 Ok(cls) => PyErr::from_instance(py, cls),
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36 }
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37 }
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38 }
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39 }
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40 }
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41
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42 py_exception!(rustext, HgPathPyError, RuntimeError);