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annotate rust/hg-pyo3/src/exceptions.rs @ 52784:5e3e8876fd9e

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rust-pyo3-revlog: index and nodetree read accessor helpers These are similar to what Python calls context managers: they enclose neatly the intermediate `self_ref` and will allow writing caller code that focuses on its own application logic.
author Georges Racinet <georges.racinet@cloudcrane.io>
date Wed, 25 Dec 2024 15:38:18 +0100
parents 827889802d11
children 4e34e8fd46d4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use pyo3::exceptions::{PyRuntimeError, PyValueError};
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2 use pyo3::import_exception;
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3 use pyo3::{create_exception, PyErr};
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4
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5 use hg::revlog::nodemap::NodeMapError;
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7 use crate::revision::PyRevision;
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8
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9 create_exception!(pyo3_rustext, GraphError, PyValueError);
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10 import_exception!(mercurial.error, WdirUnsupported);
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11
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12 impl GraphError {
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13 pub fn from_hg(inner: hg::GraphError) -> PyErr {
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14 match inner {
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15 hg::GraphError::ParentOutOfRange(r) => {
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16 GraphError::new_err(("ParentOutOfRange", PyRevision(r.0)))
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17 }
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18 hg::GraphError::ParentOutOfOrder(r) => {
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19 GraphError::new_err(("ParentOutOfOrder", PyRevision(r.0)))
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20 }
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21 }
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22 }
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23 pub fn from_vcsgraph(inner: vcsgraph::graph::GraphReadError) -> PyErr {
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24 match inner {
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25 vcsgraph::graph::GraphReadError::InconsistentGraphData => {
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26 GraphError::new_err("InconsistentGraphData")
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27 }
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28 vcsgraph::graph::GraphReadError::InvalidKey => {
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29 GraphError::new_err("ParentOutOfRange")
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30 }
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31 vcsgraph::graph::GraphReadError::KeyedInvalidKey(r) => {
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32 GraphError::new_err(("ParentOutOfRange", r))
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33 }
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34 vcsgraph::graph::GraphReadError::WorkingDirectoryUnsupported => {
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35 WdirUnsupported::new_err(())
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36 }
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37 }
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38 }
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39 }
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41 pub fn map_lock_error<T>(e: std::sync::PoisonError<T>) -> PyErr {
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42 PyRuntimeError::new_err(format!("In Rust PyO3 bindings: {e}"))
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43 }
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45 pub fn map_try_lock_error<T>(e: std::sync::TryLockError<T>) -> PyErr {
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46 PyRuntimeError::new_err(format!("In Rust PyO3 bindings: {e}"))
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47 }
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49 pub mod mercurial_py_errors {
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50 pyo3::import_exception!(mercurial.error, RevlogError);
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51 }
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53 pub fn revlog_error_from_msg(e: impl ToString) -> PyErr {
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54 mercurial_py_errors::RevlogError::new_err(e.to_string().into_bytes())
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55 }
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56
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57 pub fn nodemap_error(err: NodeMapError) -> PyErr {
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58 match err {
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59 NodeMapError::MultipleResults => {
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60 mercurial_py_errors::RevlogError::new_err("")
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61 }
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62
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63 NodeMapError::RevisionNotInIndex(rev) => {
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64 PyValueError::new_err(format!(
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65 "Inconsistency: Revision {} found in nodemap \
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66 is not in revlog index",
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67 rev
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68 ))
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69 }
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70 }
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71 }