Mercurial > hg
annotate rust/hg-core/src/lib.rs @ 45364:5fe25f8ef5d9
rhg: add a `Files` `Command` to prepare the `rhg files` subcommand
Differential Revision: https://phab.mercurial-scm.org/D8868
author | Antoine Cezar <antoine.cezar@octobus.net> |
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date | Wed, 29 Jul 2020 10:21:17 +0200 |
parents | a46e36b82461 |
children | a2eda1ff22aa |
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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 pub mod operations; |
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27 pub mod utils; |
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28 |
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29 // Remove this to see (potential) non-artificial compile failures. MacOS |
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30 // *should* compile, but fail to compile tests for example as of 2020-03-06 |
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31 #[cfg(not(target_os = "linux"))] |
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32 compile_error!( |
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33 "`hg-core` has only been tested on Linux and will most \ |
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34 likely not behave correctly on other platforms." |
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35 ); |
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36 |
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37 use crate::utils::hg_path::{HgPathBuf, HgPathError}; |
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38 pub use filepatterns::{ |
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39 parse_pattern_syntax, read_pattern_file, IgnorePattern, |
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40 PatternFileWarning, PatternSyntax, |
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41 }; |
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42 use std::collections::HashMap; |
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43 use twox_hash::RandomXxHashBuilder64; |
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44 |
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45 /// This is a contract between the `micro-timer` crate and us, to expose |
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46 /// the `log` crate as `crate::log`. |
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47 use log; |
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48 |
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49 pub type LineNumber = usize; |
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50 |
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51 /// Rust's default hasher is too slow because it tries to prevent collision |
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52 /// attacks. We are not concerned about those: if an ill-minded person has |
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53 /// write access to your repository, you have other issues. |
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54 pub type FastHashMap<K, V> = HashMap<K, V, RandomXxHashBuilder64>; |
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55 |
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56 #[derive(Clone, Debug, PartialEq)] |
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57 pub enum DirstateParseError { |
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58 TooLittleData, |
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59 Overflow, |
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60 // TODO refactor to use bytes instead of String |
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61 CorruptedEntry(String), |
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62 Damaged, |
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63 } |
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64 |
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65 impl From<std::io::Error> for DirstateParseError { |
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66 fn from(e: std::io::Error) -> Self { |
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67 DirstateParseError::CorruptedEntry(e.to_string()) |
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68 } |
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69 } |
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70 |
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71 impl ToString for DirstateParseError { |
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72 fn to_string(&self) -> String { |
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73 use crate::DirstateParseError::*; |
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74 match self { |
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75 TooLittleData => "Too little data for dirstate.".to_string(), |
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76 Overflow => "Overflow in dirstate.".to_string(), |
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77 CorruptedEntry(e) => format!("Corrupted entry: {:?}.", e), |
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78 Damaged => "Dirstate appears to be damaged.".to_string(), |
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79 } |
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80 } |
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81 } |
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82 |
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83 #[derive(Debug, PartialEq)] |
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84 pub enum DirstatePackError { |
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85 CorruptedEntry(String), |
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86 CorruptedParent, |
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87 BadSize(usize, usize), |
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88 } |
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89 |
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90 impl From<std::io::Error> for DirstatePackError { |
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91 fn from(e: std::io::Error) -> Self { |
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92 DirstatePackError::CorruptedEntry(e.to_string()) |
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93 } |
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94 } |
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95 #[derive(Debug, PartialEq)] |
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96 pub enum DirstateMapError { |
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97 PathNotFound(HgPathBuf), |
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98 EmptyPath, |
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99 InvalidPath(HgPathError), |
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100 } |
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101 |
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102 impl ToString for DirstateMapError { |
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103 fn to_string(&self) -> String { |
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104 match self { |
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105 DirstateMapError::PathNotFound(_) => { |
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106 "expected a value, found none".to_string() |
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107 } |
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108 DirstateMapError::EmptyPath => "Overflow in dirstate.".to_string(), |
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109 DirstateMapError::InvalidPath(e) => e.to_string(), |
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110 } |
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111 } |
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112 } |
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113 |
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114 #[derive(Debug)] |
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115 pub enum DirstateError { |
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116 Parse(DirstateParseError), |
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117 Pack(DirstatePackError), |
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118 Map(DirstateMapError), |
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119 IO(std::io::Error), |
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120 } |
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121 |
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122 impl From<DirstateParseError> for DirstateError { |
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123 fn from(e: DirstateParseError) -> Self { |
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124 DirstateError::Parse(e) |
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125 } |
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126 } |
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127 |
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128 impl From<DirstatePackError> for DirstateError { |
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129 fn from(e: DirstatePackError) -> Self { |
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130 DirstateError::Pack(e) |
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131 } |
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132 } |
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133 |
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134 #[derive(Debug)] |
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135 pub enum PatternError { |
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136 Path(HgPathError), |
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137 UnsupportedSyntax(String), |
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138 UnsupportedSyntaxInFile(String, String, usize), |
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139 TooLong(usize), |
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140 IO(std::io::Error), |
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141 /// Needed a pattern that can be turned into a regex but got one that |
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142 /// can't. This should only happen through programmer error. |
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143 NonRegexPattern(IgnorePattern), |
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144 } |
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145 |
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146 impl ToString for PatternError { |
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147 fn to_string(&self) -> String { |
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148 match self { |
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149 PatternError::UnsupportedSyntax(syntax) => { |
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150 format!("Unsupported syntax {}", syntax) |
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151 } |
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152 PatternError::UnsupportedSyntaxInFile(syntax, file_path, line) => { |
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153 format!( |
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154 "{}:{}: unsupported syntax {}", |
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155 file_path, line, syntax |
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156 ) |
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157 } |
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158 PatternError::TooLong(size) => { |
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159 format!("matcher pattern is too long ({} bytes)", size) |
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160 } |
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161 PatternError::IO(e) => e.to_string(), |
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162 PatternError::Path(e) => e.to_string(), |
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163 PatternError::NonRegexPattern(pattern) => { |
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164 format!("'{:?}' cannot be turned into a regex", pattern) |
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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 |
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170 impl From<DirstateMapError> for DirstateError { |
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171 fn from(e: DirstateMapError) -> Self { |
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172 DirstateError::Map(e) |
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173 } |
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174 } |
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175 |
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176 impl From<std::io::Error> for DirstateError { |
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177 fn from(e: std::io::Error) -> Self { |
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178 DirstateError::IO(e) |
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179 } |
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180 } |
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181 |
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182 impl From<std::io::Error> for PatternError { |
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183 fn from(e: std::io::Error) -> Self { |
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184 PatternError::IO(e) |
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185 } |
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186 } |
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187 |
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188 impl From<HgPathError> for PatternError { |
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189 fn from(e: HgPathError) -> Self { |
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190 PatternError::Path(e) |
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191 } |
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192 } |