Mercurial > projects > ldc
annotate druntime/src/compiler/dmd/cover.d @ 759:d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Tue, 11 Nov 2008 01:52:37 +0100 |
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rev | line source |
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759
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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1 /** |
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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2 * Code coverage analyzer. |
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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3 * |
d3eb054172f9
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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4 * Bugs: |
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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5 * $(UL |
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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6 * $(LI the execution counters are 32 bits in size, and can overflow) |
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7 * $(LI inline asm statements are not counted) |
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8 * ) |
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9 * |
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10 * Copyright: Copyright (C) 2005-2006 Digital Mars, www.digitalmars.com. All rights reserved. |
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11 * License: BSD style: $(LICENSE) |
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12 * Authors: Walter Bright, Sean Kelly |
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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13 */ |
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14 |
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15 module rt.cover; |
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16 |
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17 private |
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18 { |
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19 version( Windows ) |
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20 import sys.windows.windows; |
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21 else version( Posix ) |
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22 { |
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23 import stdc.posix.fcntl; |
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24 import stdc.posix.unistd; |
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25 } |
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26 import core.bitmanip; |
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27 import stdc.stdio; |
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28 import util.utf; |
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29 |
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30 struct BitArray |
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31 { |
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32 size_t len; |
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33 uint* ptr; |
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34 |
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35 bool opIndex( size_t i ) |
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36 in |
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37 { |
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38 assert( i < len ); |
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39 } |
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40 body |
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41 { |
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42 return cast(bool) bt( ptr, i ); |
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43 } |
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44 } |
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45 |
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46 struct Cover |
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47 { |
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48 char[] filename; |
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49 BitArray valid; |
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50 uint[] data; |
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51 } |
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52 |
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53 Cover[] gdata; |
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54 char[] srcpath; |
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55 char[] dstpath; |
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56 bool merge; |
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57 } |
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58 |
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59 |
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60 /** |
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61 * Set path to where source files are located. |
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62 * |
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63 * Params: |
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64 * pathname = The new path name. |
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65 */ |
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66 extern (C) void dmd_coverSourcePath( char[] pathname ) |
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67 { |
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68 srcpath = pathname; |
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69 } |
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70 |
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71 |
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72 /** |
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73 * Set path to where listing files are to be written. |
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74 * |
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75 * Params: |
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76 * pathname = The new path name. |
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77 */ |
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78 extern (C) void dmd_coverDestPath( char[] pathname ) |
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79 { |
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80 dstpath = pathname; |
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81 } |
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82 |
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83 |
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84 /** |
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85 * Set merge mode. |
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86 * |
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87 * Params: |
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88 * flag = true means new data is summed with existing data in the listing |
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89 * file; false means a new listing file is always created. |
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90 */ |
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91 extern (C) void dmd_coverSetMerge( bool flag ) |
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92 { |
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93 merge = flag; |
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94 } |
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95 |
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96 |
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97 /** |
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98 * The coverage callback. |
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99 * |
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100 * Params: |
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101 * filename = The name of the coverage file. |
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102 * valid = ??? |
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103 * data = ??? |
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104 */ |
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105 extern (C) void _d_cover_register( char[] filename, BitArray valid, uint[] data ) |
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106 { |
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107 Cover c; |
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108 |
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109 c.filename = filename; |
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110 c.valid = valid; |
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111 c.data = data; |
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112 gdata ~= c; |
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113 } |
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114 |
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115 |
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116 static ~this() |
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117 { |
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118 const NUMLINES = 16384 - 1; |
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119 const NUMCHARS = 16384 * 16 - 1; |
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120 |
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121 char[] srcbuf = new char[NUMCHARS]; |
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122 char[][] srclines = new char[][NUMLINES]; |
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123 char[] lstbuf = new char[NUMCHARS]; |
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124 char[][] lstlines = new char[][NUMLINES]; |
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125 |
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126 foreach( Cover c; gdata ) |
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127 { |
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128 if( !readFile( appendFN( srcpath, c.filename ), srcbuf ) ) |
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129 continue; |
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130 splitLines( srcbuf, srclines ); |
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131 |
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132 if( merge ) |
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133 { |
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134 if( !readFile( c.filename ~ ".lst", lstbuf ) ) |
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135 break; |
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136 splitLines( lstbuf, lstlines ); |
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137 |
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138 for( size_t i = 0; i < lstlines.length; ++i ) |
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139 { |
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140 if( i >= c.data.length ) |
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141 break; |
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142 |
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143 int count = 0; |
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144 |
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145 foreach( char c2; lstlines[i] ) |
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146 { |
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147 switch( c2 ) |
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148 { |
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149 case ' ': |
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150 continue; |
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151 case '0': case '1': case '2': case '3': case '4': |
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152 case '5': case '6': case '7': case '8': case '9': |
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153 count = count * 10 + c2 - '0'; |
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154 continue; |
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155 default: |
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156 break; |
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157 } |
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158 } |
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159 c.data[i] += count; |
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160 } |
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161 } |
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162 |
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163 FILE* flst = fopen( (c.filename ~ ".lst").ptr, "wb" ); |
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164 |
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165 if( !flst ) |
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166 continue; //throw new Exception( "Error opening file for write: " ~ lstfn ); |
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167 |
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168 uint nno; |
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169 uint nyes; |
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170 |
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171 for( int i = 0; i < c.data.length; i++ ) |
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172 { |
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173 if( i < srclines.length ) |
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174 { |
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175 uint n = c.data[i]; |
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176 char[] line = srclines[i]; |
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177 |
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178 line = expandTabs( line ); |
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179 |
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180 if( n == 0 ) |
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181 { |
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182 if( c.valid[i] ) |
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183 { |
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184 nno++; |
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185 fprintf( flst, "0000000|%.*s\n", line ); |
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186 } |
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187 else |
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188 { |
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189 fprintf( flst, " |%.*s\n", line ); |
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190 } |
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191 } |
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192 else |
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193 { |
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194 nyes++; |
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195 fprintf( flst, "%7u|%.*s\n", n, line ); |
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196 } |
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197 } |
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198 } |
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199 if( nyes + nno ) // no divide by 0 bugs |
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200 { |
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201 fprintf( flst, "%.*s is %d%% covered\n", c.filename, ( nyes * 100 ) / ( nyes + nno ) ); |
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202 } |
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203 fclose( flst ); |
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204 } |
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205 } |
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206 |
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207 |
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208 char[] appendFN( char[] path, char[] name ) |
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209 { |
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210 version( Windows ) |
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211 const char sep = '\\'; |
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212 else |
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213 const char sep = '/'; |
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214 |
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215 char[] dest = path; |
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216 |
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217 if( dest && dest[$ - 1] != sep ) |
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218 dest ~= sep; |
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219 dest ~= name; |
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220 return dest; |
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221 } |
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222 |
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223 |
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224 bool readFile( char[] name, inout char[] buf ) |
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225 { |
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226 version( Windows ) |
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227 { |
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228 auto wnamez = toUTF16z( name ); |
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229 HANDLE file = CreateFileW( wnamez, |
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230 GENERIC_READ, |
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231 FILE_SHARE_READ, |
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232 null, |
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233 OPEN_EXISTING, |
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234 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, |
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235 cast(HANDLE) null ); |
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236 |
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237 delete wnamez; |
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238 if( file == INVALID_HANDLE_VALUE ) |
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239 return false; |
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240 scope( exit ) CloseHandle( file ); |
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241 |
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242 DWORD num = 0; |
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243 DWORD pos = 0; |
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244 |
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245 buf.length = 4096; |
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246 while( true ) |
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247 { |
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248 if( !ReadFile( file, &buf[pos], cast(DWORD)( buf.length - pos ), &num, null ) ) |
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249 return false; |
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250 if( !num ) |
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251 break; |
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252 pos += num; |
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253 buf.length = pos * 2; |
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254 } |
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255 buf.length = pos; |
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256 return true; |
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257 } |
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258 else version( linux ) |
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259 { |
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260 char[] namez = new char[name.length + 1]; |
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261 namez[0 .. name.length] = name; |
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262 namez[$ - 1] = 0; |
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263 int file = open( namez.ptr, O_RDONLY ); |
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264 |
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265 delete namez; |
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266 if( file == -1 ) |
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267 return false; |
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268 scope( exit ) close( file ); |
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269 |
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270 int num = 0; |
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271 uint pos = 0; |
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272 |
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273 buf.length = 4096; |
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274 while( true ) |
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275 { |
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276 num = read( file, &buf[pos], cast(uint)( buf.length - pos ) ); |
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277 if( num == -1 ) |
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278 return false; |
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279 if( !num ) |
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280 break; |
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281 pos += num; |
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282 buf.length = pos * 2; |
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283 } |
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284 buf.length = pos; |
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285 return true; |
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286 } |
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287 } |
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288 |
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289 |
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290 void splitLines( char[] buf, inout char[][] lines ) |
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291 { |
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292 size_t beg = 0, |
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293 pos = 0; |
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294 |
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295 lines.length = 0; |
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296 for( ; pos < buf.length; ++pos ) |
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297 { |
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298 char c = buf[pos]; |
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299 |
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300 switch( buf[pos] ) |
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301 { |
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302 case '\r': |
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303 case '\n': |
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304 lines ~= buf[beg .. pos]; |
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305 beg = pos + 1; |
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306 if( buf[pos] == '\r' && pos < buf.length - 1 && buf[pos + 1] == '\n' ) |
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307 ++pos, ++beg; |
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308 default: |
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309 continue; |
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310 } |
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311 } |
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312 if( beg != pos ) |
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313 { |
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314 lines ~= buf[beg .. pos]; |
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315 } |
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316 } |
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317 |
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318 |
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319 char[] expandTabs( char[] string, int tabsize = 8 ) |
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320 { |
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321 const dchar LS = '\u2028'; // UTF line separator |
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322 const dchar PS = '\u2029'; // UTF paragraph separator |
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323 |
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324 bool changes = false; |
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325 char[] result = string; |
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326 int column; |
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327 int nspaces; |
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328 |
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329 foreach( size_t i, dchar c; string ) |
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330 { |
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331 switch( c ) |
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332 { |
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333 case '\t': |
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334 nspaces = tabsize - (column % tabsize); |
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335 if( !changes ) |
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336 { |
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337 changes = true; |
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338 result = null; |
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339 result.length = string.length + nspaces - 1; |
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340 result.length = i + nspaces; |
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341 result[0 .. i] = string[0 .. i]; |
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342 result[i .. i + nspaces] = ' '; |
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343 } |
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Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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344 else |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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345 { int j = result.length; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
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parents:
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346 result.length = j + nspaces; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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347 result[j .. j + nspaces] = ' '; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
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348 } |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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349 column += nspaces; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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350 break; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
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351 |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
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352 case '\r': |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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353 case '\n': |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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354 case PS: |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
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355 case LS: |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
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356 column = 0; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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357 goto L1; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
358 |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
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359 default: |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
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360 column++; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
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361 L1: |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
362 if (changes) |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
363 { |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
364 if (c <= 0x7F) |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
365 result ~= c; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
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366 else |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
367 encode(result, c); |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
368 } |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
369 break; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
370 } |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
371 } |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
372 return result; |
d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff
changeset
|
373 } |