Mercurial > irccd
annotate extern/vera/src/structures/SourceLines.cpp @ 655:cda30ca5bb76
Irccd: style (controller) #782
author | David Demelier <markand@malikania.fr> |
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date | Tue, 27 Mar 2018 20:30:59 +0200 |
parents | a7c0eb100760 |
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rev | line source |
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548
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CMake: import vera++ 1.3.0, closes #729
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1 // |
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2 // Copyright (C) 2006-2007 Maciej Sobczak |
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3 // Distributed under the Boost Software License, Version 1.0. |
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4 // (See accompanying file LICENSE_1_0.txt or copy at |
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5 // http://www.boost.org/LICENSE_1_0.txt) |
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6 // |
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7 |
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8 #include "SourceLines.h" |
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9 #include "Tokens.h" |
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10 #include "../plugins/Reports.h" |
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11 #include <vector> |
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12 #include <map> |
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13 #include <fstream> |
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14 #include <sstream> |
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15 #include <cstring> |
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16 #include <cerrno> |
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17 |
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18 |
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19 namespace // unnamed |
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20 { |
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21 |
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22 typedef std::map<Vera::Structures::SourceFiles::FileName, |
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23 Vera::Structures::SourceLines::LineCollection> SourceFileCollection; |
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24 |
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25 SourceFileCollection sources_; |
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26 |
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27 } // unnamed namespace |
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28 |
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29 |
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30 namespace Vera |
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31 { |
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32 namespace Structures |
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33 { |
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34 |
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35 const SourceLines::LineCollection & SourceLines::getAllLines(const SourceFiles::FileName & name) |
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36 { |
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37 const SourceFileCollection::const_iterator it = sources_.find(name); |
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38 if (it != sources_.end()) |
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39 { |
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40 return it->second; |
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41 } |
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42 else |
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43 { |
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44 // lazy load of the source file |
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45 loadFile(name); |
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46 return sources_[name]; |
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47 } |
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48 } |
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49 |
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50 void SourceLines::loadFile(const SourceFiles::FileName & name) |
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51 { |
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52 if (name == "-") |
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53 { |
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54 SourceLines::loadFile(std::cin, name); |
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55 } |
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56 else |
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57 { |
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58 std::ifstream file(name.c_str()); |
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59 if (file.is_open() == false) |
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60 { |
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61 std::ostringstream ss; |
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62 ss << "Cannot open source file " << name << ": " |
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63 << strerror(errno); |
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64 throw SourceFileError(ss.str()); |
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65 } |
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66 SourceLines::loadFile(file, name); |
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67 if (file.bad()) |
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68 { |
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69 throw std::runtime_error( |
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70 "Cannot read from " + name + ": " + strerror(errno)); |
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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 void SourceLines::loadFile(std::istream & file, const SourceFiles::FileName & name) |
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76 { |
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77 LineCollection & lines = sources_[name]; |
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78 |
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79 std::string line; |
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80 Tokens::FileContent fullSource; |
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81 while (getline(file, line)) |
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82 { |
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83 lines.push_back(line); |
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84 fullSource += line; |
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85 |
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86 // built-in rule |
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87 if (file.eof()) |
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88 { |
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89 // Plugins::Reports::internal(name, static_cast<int>(lines.size()), |
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90 // "no newline at end of file"); |
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91 } |
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92 else |
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93 { |
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94 fullSource += '\n'; |
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95 } |
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96 } |
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97 |
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98 Tokens::parse(name, fullSource); |
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99 } |
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100 |
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101 int SourceLines::getLineCount(const SourceFiles::FileName & name) |
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102 { |
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103 return static_cast<int>(getAllLines(name).size()); |
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104 } |
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105 |
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106 const std::string & SourceLines::getLine(const SourceFiles::FileName & name, int lineNumber) |
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107 { |
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108 const LineCollection & lines = getAllLines(name); |
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109 if (lineNumber < 1 || lineNumber > static_cast<int>(lines.size())) |
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110 { |
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111 std::cerr << "Requested wrong line number: " << lineNumber << '\n'; |
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112 std::cerr << "lines.size in " << name << " is " << static_cast<int>(lines.size()) << '\n'; |
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113 throw SourceFileError("requested line number is out of range"); |
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114 } |
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115 |
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116 return lines[lineNumber - 1]; |
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117 } |
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118 |
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119 } |
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120 } |