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annotate rust/hg-core/src/lib.rs @ 44571:ece43c79333e

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rust-core: add missing `Debug` traits Turns out you need them when trying to use `hg-core` as a library. Who knew. Differential Revision: https://phab.mercurial-scm.org/D8278
author Rapha?l Gom?s <rgomes@octobus.net>
date Fri, 13 Mar 2020 00:41:22 +0100
parents d880805d5442
children f8427841c8fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // Copyright 2018-2020 Georges Racinet <georges.racinet@octobus.net>
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2 // and Mercurial contributors
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3 //
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4 // This software may be used and distributed according to the terms of the
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5 // GNU General Public License version 2 or any later version.
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6 mod ancestors;
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7 pub mod dagops;
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8 pub use ancestors::{AncestorsIterator, LazyAncestors, MissingAncestors};
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9 mod dirstate;
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10 pub mod discovery;
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11 pub mod testing; // unconditionally built, for use from integration tests
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12 pub use dirstate::{
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13 dirs_multiset::{DirsMultiset, DirsMultisetIter},
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14 dirstate_map::DirstateMap,
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15 parsers::{pack_dirstate, parse_dirstate, PARENT_SIZE},
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16 status::{
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17 status, BadMatch, BadType, DirstateStatus, StatusError, StatusOptions,
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18 },
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19 CopyMap, CopyMapIter, DirstateEntry, DirstateParents, EntryState,
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20 StateMap, StateMapIter,
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21 };
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22 mod filepatterns;
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23 pub mod matchers;
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24 pub mod revlog;
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25 pub use revlog::*;
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26 #[cfg(feature = "with-re2")]
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27 pub mod re2;
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28 pub mod utils;
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29
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30 use crate::utils::hg_path::{HgPathBuf, HgPathError};
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31 pub use filepatterns::{
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32 parse_pattern_syntax, read_pattern_file, IgnorePattern,
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33 PatternFileWarning, PatternSyntax,
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34 };
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35 use std::collections::HashMap;
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36 use twox_hash::RandomXxHashBuilder64;
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37
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38 /// This is a contract between the `micro-timer` crate and us, to expose
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39 /// the `log` crate as `crate::log`.
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40 use log;
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41
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42 pub type LineNumber = usize;
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43
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44 /// Rust's default hasher is too slow because it tries to prevent collision
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45 /// attacks. We are not concerned about those: if an ill-minded person has
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46 /// write access to your repository, you have other issues.
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47 pub type FastHashMap<K, V> = HashMap<K, V, RandomXxHashBuilder64>;
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48
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49 #[derive(Clone, Debug, PartialEq)]
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50 pub enum DirstateParseError {
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51 TooLittleData,
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52 Overflow,
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53 CorruptedEntry(String),
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54 Damaged,
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55 }
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56
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57 impl From<std::io::Error> for DirstateParseError {
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58 fn from(e: std::io::Error) -> Self {
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59 DirstateParseError::CorruptedEntry(e.to_string())
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60 }
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61 }
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62
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63 impl ToString for DirstateParseError {
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64 fn to_string(&self) -> String {
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65 use crate::DirstateParseError::*;
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66 match self {
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67 TooLittleData => "Too little data for dirstate.".to_string(),
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68 Overflow => "Overflow in dirstate.".to_string(),
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69 CorruptedEntry(e) => format!("Corrupted entry: {:?}.", e),
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70 Damaged => "Dirstate appears to be damaged.".to_string(),
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71 }
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72 }
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73 }
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74
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75 #[derive(Debug, PartialEq)]
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76 pub enum DirstatePackError {
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77 CorruptedEntry(String),
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78 CorruptedParent,
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79 BadSize(usize, usize),
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80 }
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81
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82 impl From<std::io::Error> for DirstatePackError {
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83 fn from(e: std::io::Error) -> Self {
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84 DirstatePackError::CorruptedEntry(e.to_string())
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85 }
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86 }
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87 #[derive(Debug, PartialEq)]
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88 pub enum DirstateMapError {
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89 PathNotFound(HgPathBuf),
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90 EmptyPath,
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91 InvalidPath(HgPathError),
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92 }
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93
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94 impl ToString for DirstateMapError {
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95 fn to_string(&self) -> String {
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96 match self {
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97 DirstateMapError::PathNotFound(_) => {
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98 "expected a value, found none".to_string()
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99 }
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100 DirstateMapError::EmptyPath => "Overflow in dirstate.".to_string(),
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101 DirstateMapError::InvalidPath(e) => e.to_string(),
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102 }
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103 }
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104 }
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105
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106 #[derive(Debug)]
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107 pub enum DirstateError {
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108 Parse(DirstateParseError),
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109 Pack(DirstatePackError),
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110 Map(DirstateMapError),
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111 IO(std::io::Error),
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112 }
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113
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114 impl From<DirstateParseError> for DirstateError {
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115 fn from(e: DirstateParseError) -> Self {
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116 DirstateError::Parse(e)
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117 }
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118 }
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119
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120 impl From<DirstatePackError> for DirstateError {
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121 fn from(e: DirstatePackError) -> Self {
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122 DirstateError::Pack(e)
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123 }
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124 }
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125
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126 #[derive(Debug)]
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127 pub enum PatternError {
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128 Path(HgPathError),
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129 UnsupportedSyntax(String),
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130 UnsupportedSyntaxInFile(String, String, usize),
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131 TooLong(usize),
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132 IO(std::io::Error),
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133 /// Needed a pattern that can be turned into a regex but got one that
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134 /// can't. This should only happen through programmer error.
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135 NonRegexPattern(IgnorePattern),
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136 /// This is temporary, see `re2/mod.rs`.
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137 /// This will cause a fallback to Python.
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138 Re2NotInstalled,
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139 }
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140
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141 impl ToString for PatternError {
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142 fn to_string(&self) -> String {
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143 match self {
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144 PatternError::UnsupportedSyntax(syntax) => {
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145 format!("Unsupported syntax {}", syntax)
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146 }
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147 PatternError::UnsupportedSyntaxInFile(syntax, file_path, line) => {
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148 format!(
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149 "{}:{}: unsupported syntax {}",
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150 file_path, line, syntax
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151 )
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152 }
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153 PatternError::TooLong(size) => {
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154 format!("matcher pattern is too long ({} bytes)", size)
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155 }
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156 PatternError::IO(e) => e.to_string(),
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157 PatternError::Path(e) => e.to_string(),
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158 PatternError::NonRegexPattern(pattern) => {
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159 format!("'{:?}' cannot be turned into a regex", pattern)
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160 }
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161 PatternError::Re2NotInstalled => {
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162 "Re2 is not installed, cannot use regex functionality."
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163 .to_string()
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164 }
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165 }
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166 }
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167 }
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168
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169 impl From<DirstateMapError> for DirstateError {
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170 fn from(e: DirstateMapError) -> Self {
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171 DirstateError::Map(e)
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172 }
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173 }
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174
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175 impl From<std::io::Error> for DirstateError {
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176 fn from(e: std::io::Error) -> Self {
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177 DirstateError::IO(e)
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178 }
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179 }
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180
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181 impl From<std::io::Error> for PatternError {
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182 fn from(e: std::io::Error) -> Self {
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183 PatternError::IO(e)
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184 }
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185 }
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186
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187 impl From<HgPathError> for PatternError {
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188 fn from(e: HgPathError) -> Self {
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189 PatternError::Path(e)
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190 }
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191 }