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336
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1
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2 // Compiler implementation of the D programming language
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3 // Copyright (c) 1999-2007 by Digital Mars
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4 // All Rights Reserved
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5 // written by Walter Bright
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6 // http://www.digitalmars.com
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7 // License for redistribution is by either the Artistic License
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8 // in artistic.txt, or the GNU General Public License in gnu.txt.
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9 // See the included readme.txt for details.
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10
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11 #include <stdio.h>
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12 #include <stdlib.h>
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13 #include <assert.h>
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14
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15 #if _MSC_VER || __MINGW32__
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16 #include <malloc.h>
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17 #endif
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18
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19 #if IN_GCC
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20 #include "gdc_alloca.h"
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21 #endif
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22
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23 #include "mem.h"
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24
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25 #include "mars.h"
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26 #include "module.h"
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27 #include "parse.h"
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28 #include "scope.h"
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29 #include "identifier.h"
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30 #include "id.h"
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31 #include "import.h"
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32 #include "dsymbol.h"
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33 #include "hdrgen.h"
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34 #include "lexer.h"
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35
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36 #define MARS 1
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37 #include "html.h"
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38
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39 #ifdef IN_GCC
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40 #include "d-dmd-gcc.h"
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41 #endif
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42
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43 ClassDeclaration *Module::moduleinfo;
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44
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45 Module *Module::rootModule;
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46 DsymbolTable *Module::modules;
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47 Array Module::amodules;
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48
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49 Array Module::deferred; // deferred Dsymbol's needing semantic() run on them
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50 unsigned Module::dprogress;
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51
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52 void Module::init()
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53 {
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54 modules = new DsymbolTable();
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55 }
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56
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57 Module::Module(char *filename, Identifier *ident, int doDocComment, int doHdrGen)
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58 : Package(ident)
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59 {
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60 FileName *srcfilename;
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61 FileName *cfilename;
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62 FileName *hfilename;
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63 FileName *objfilename;
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64 FileName *llfilename;
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65 FileName *bcfilename;
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66 FileName *symfilename;
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67
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68 // printf("Module::Module(filename = '%s', ident = '%s')\n", filename, ident->toChars());
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69 this->arg = filename;
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70 md = NULL;
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71 errors = 0;
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72 numlines = 0;
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73 members = NULL;
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74 isHtml = 0;
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75 isDocFile = 0;
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76 needmoduleinfo = 0;
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77 #ifdef IN_GCC
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78 strictlyneedmoduleinfo = 0;
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79 #endif
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80 insearch = 0;
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81 searchCacheIdent = NULL;
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82 searchCacheSymbol = NULL;
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83 searchCacheFlags = 0;
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84 semanticstarted = 0;
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85 semanticdone = 0;
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86 decldefs = NULL;
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87 vmoduleinfo = NULL;
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88 massert = NULL;
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89 marray = NULL;
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90 sictor = NULL;
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91 sctor = NULL;
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92 sdtor = NULL;
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93 stest = NULL;
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94 sfilename = NULL;
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95 root = 0;
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96 importedFrom = NULL;
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97 srcfile = NULL;
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98 docfile = NULL;
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99
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100 debuglevel = 0;
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101 debugids = NULL;
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102 debugidsNot = NULL;
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103 versionlevel = 0;
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104 versionids = NULL;
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105 versionidsNot = NULL;
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106
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107 macrotable = NULL;
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108 escapetable = NULL;
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109 doppelganger = 0;
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110 cov = NULL;
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111 covb = NULL;
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112
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113 srcfilename = FileName::defaultExt(filename, global.mars_ext);
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114 if (!srcfilename->equalsExt(global.mars_ext) &&
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115 !srcfilename->equalsExt("dd"))
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116 {
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117 if (srcfilename->equalsExt("html") ||
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118 srcfilename->equalsExt("htm") ||
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119 srcfilename->equalsExt("xhtml"))
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120 isHtml = 1;
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121 else
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122 { error("source file name '%s' must have .%s extension", srcfilename->toChars(), global.mars_ext);
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123 fatal();
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124 }
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125 }
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126
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127 char *argobj;
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128 if (global.params.objname)
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129 argobj = global.params.objname;
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130 else if (global.params.preservePaths)
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131 argobj = filename;
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132 else
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133 argobj = FileName::name(filename);
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134 if (!FileName::absolute(argobj))
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135 {
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136 argobj = FileName::combine(global.params.objdir, argobj);
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137 }
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138
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139 if (global.params.objname)
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140 objfilename = new FileName(argobj, 0);
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141 else
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142 objfilename = FileName::forceExt(argobj, global.obj_ext);
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143
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144 llfilename = FileName::forceExt(argobj, global.ll_ext);
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145 bcfilename = FileName::forceExt(argobj, global.bc_ext);
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146
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147 symfilename = FileName::forceExt(filename, global.sym_ext);
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148
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149 srcfile = new File(srcfilename);
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150
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151 if (doDocComment)
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152 {
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153 setDocfile();
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154 }
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155
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156 if (doHdrGen)
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157 {
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158 setHdrfile();
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159 }
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160
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161 objfile = new File(objfilename);
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162 bcfile = new File(bcfilename);
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163 llfile = new File(llfilename);
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164 symfile = new File(symfilename);
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165 }
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166
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167 void Module::setDocfile()
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168 {
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169 FileName *docfilename;
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170 char *argdoc;
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171
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172 if (global.params.docname)
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173 argdoc = global.params.docname;
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174 else if (global.params.preservePaths)
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175 argdoc = (char *)arg;
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176 else
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177 argdoc = FileName::name((char *)arg);
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178 if (!FileName::absolute(argdoc))
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179 { //FileName::ensurePathExists(global.params.docdir);
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180 argdoc = FileName::combine(global.params.docdir, argdoc);
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181 }
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182 if (global.params.docname)
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183 docfilename = new FileName(argdoc, 0);
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184 else
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185 docfilename = FileName::forceExt(argdoc, global.doc_ext);
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186
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187 if (docfilename->equals(srcfile->name))
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188 { error("Source file and documentation file have same name '%s'", srcfile->name->str);
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189 fatal();
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190 }
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191
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192 docfile = new File(docfilename);
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193 }
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194
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195 void Module::setHdrfile()
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196 {
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197 FileName *hdrfilename;
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198 char *arghdr;
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199
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200 if (global.params.hdrname)
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201 arghdr = global.params.hdrname;
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202 else if (global.params.preservePaths)
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203 arghdr = (char *)arg;
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204 else
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205 arghdr = FileName::name((char *)arg);
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206 if (!FileName::absolute(arghdr))
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207 { //FileName::ensurePathExists(global.params.hdrdir);
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208 arghdr = FileName::combine(global.params.hdrdir, arghdr);
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209 }
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210 if (global.params.hdrname)
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211 hdrfilename = new FileName(arghdr, 0);
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212 else
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213 hdrfilename = FileName::forceExt(arghdr, global.hdr_ext);
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214
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215 if (hdrfilename->equals(srcfile->name))
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216 { error("Source file and 'header' file have same name '%s'", srcfile->name->str);
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217 fatal();
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218 }
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219
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220 hdrfile = new File(hdrfilename);
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221 }
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222
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223 void Module::deleteObjFile()
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224 {
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225 if (global.params.obj)
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226 objfile->remove();
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227 //if (global.params.llvmBC)
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228 bcfile->remove();
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229 if (docfile)
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230 docfile->remove();
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231 }
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232
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233 Module::~Module()
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234 {
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235 }
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236
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237 const char *Module::kind()
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238 {
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239 return "module";
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240 }
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241
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242 Module *Module::load(Loc loc, Array *packages, Identifier *ident)
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243 { Module *m;
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244 char *filename;
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245
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246 //printf("Module::load(ident = '%s')\n", ident->toChars());
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247
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248 // Build module filename by turning:
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249 // foo.bar.baz
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250 // into:
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251 // foo\bar\baz
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252 filename = ident->toChars();
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253 if (packages && packages->dim)
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254 {
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255 OutBuffer buf;
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256 int i;
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257
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258 for (i = 0; i < packages->dim; i++)
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259 { Identifier *pid = (Identifier *)packages->data[i];
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260
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261 buf.writestring(pid->toChars());
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262 #if _WIN32
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263 buf.writeByte('\\');
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264 #else
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265 buf.writeByte('/');
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266 #endif
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267 }
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268 buf.writestring(filename);
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269 buf.writeByte(0);
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270 filename = (char *)buf.extractData();
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271 }
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272
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273 m = new Module(filename, ident, 0, 0);
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274 m->loc = loc;
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275
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276 /* Search along global.path for .di file, then .d file.
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277 */
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278 char *result = NULL;
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279 FileName *fdi = FileName::forceExt(filename, global.hdr_ext);
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280 FileName *fd = FileName::forceExt(filename, global.mars_ext);
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281 char *sdi = fdi->toChars();
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282 char *sd = fd->toChars();
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283
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284 if (FileName::exists(sdi))
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285 result = sdi;
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286 else if (FileName::exists(sd))
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287 result = sd;
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288 else if (FileName::absolute(filename))
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289 ;
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290 else if (!global.path)
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291 ;
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292 else
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293 {
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294 for (size_t i = 0; i < global.path->dim; i++)
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295 {
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296 char *p = (char *)global.path->data[i];
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297 char *n = FileName::combine(p, sdi);
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298 if (FileName::exists(n))
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299 { result = n;
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300 break;
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301 }
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302 mem.free(n);
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303 n = FileName::combine(p, sd);
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304 if (FileName::exists(n))
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305 { result = n;
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306 break;
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307 }
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308 mem.free(n);
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309 }
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310 }
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311 if (result)
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312 m->srcfile = new File(result);
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313
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314 if (global.params.verbose)
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315 {
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316 printf("import ");
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317 if (packages)
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318 {
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319 for (size_t i = 0; i < packages->dim; i++)
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320 { Identifier *pid = (Identifier *)packages->data[i];
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321 printf("%s.", pid->toChars());
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322 }
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323 }
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324 printf("%s\t(%s)\n", ident->toChars(), m->srcfile->toChars());
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325 }
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326
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327 m->read(loc);
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328 m->parse();
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329
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330 #ifdef IN_GCC
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331 d_gcc_magic_module(m);
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332 #endif
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333
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334 return m;
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335 }
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336
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337 void Module::read(Loc loc)
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338 {
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339 //printf("Module::read('%s') file '%s'\n", toChars(), srcfile->toChars());
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340 if (srcfile->read())
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341 { error(loc, "cannot read file '%s'", srcfile->toChars());
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342 fatal();
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343 }
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344 }
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345
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346 inline unsigned readwordLE(unsigned short *p)
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347 {
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348 #if __I86__
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349 return *p;
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350 #else
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351 return (((unsigned char *)p)[1] << 8) | ((unsigned char *)p)[0];
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352 #endif
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353 }
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354
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355 inline unsigned readwordBE(unsigned short *p)
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356 {
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357 return (((unsigned char *)p)[0] << 8) | ((unsigned char *)p)[1];
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358 }
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359
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360 inline unsigned readlongLE(unsigned *p)
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361 {
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362 #if __I86__
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363 return *p;
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364 #else
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365 return ((unsigned char *)p)[0] |
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366 (((unsigned char *)p)[1] << 8) |
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367 (((unsigned char *)p)[2] << 16) |
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368 (((unsigned char *)p)[3] << 24);
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369 #endif
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370 }
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371
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372 inline unsigned readlongBE(unsigned *p)
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373 {
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374 return ((unsigned char *)p)[3] |
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375 (((unsigned char *)p)[2] << 8) |
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376 (((unsigned char *)p)[1] << 16) |
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377 (((unsigned char *)p)[0] << 24);
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378 }
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379
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380 #if IN_GCC
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381 void Module::parse(bool dump_source)
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382 #else
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383 void Module::parse()
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384 #endif
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385 { char *srcname;
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386 unsigned char *buf;
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387 unsigned buflen;
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388 unsigned le;
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389 unsigned bom;
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390
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391 //printf("Module::parse()\n");
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392
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393 srcname = srcfile->name->toChars();
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394 //printf("Module::parse(srcname = '%s')\n", srcname);
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395
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396 buf = srcfile->buffer;
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397 buflen = srcfile->len;
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398
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399 if (buflen >= 2)
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400 {
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401 /* Convert all non-UTF-8 formats to UTF-8.
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402 * BOM : http://www.unicode.org/faq/utf_bom.html
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403 * 00 00 FE FF UTF-32BE, big-endian
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404 * FF FE 00 00 UTF-32LE, little-endian
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405 * FE FF UTF-16BE, big-endian
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406 * FF FE UTF-16LE, little-endian
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407 * EF BB BF UTF-8
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408 */
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409
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410 bom = 1; // assume there's a BOM
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411 if (buf[0] == 0xFF && buf[1] == 0xFE)
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412 {
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413 if (buflen >= 4 && buf[2] == 0 && buf[3] == 0)
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414 { // UTF-32LE
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415 le = 1;
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416
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417 Lutf32:
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418 OutBuffer dbuf;
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419 unsigned *pu = (unsigned *)(buf);
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420 unsigned *pumax = &pu[buflen / 4];
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421
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422 if (buflen & 3)
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423 { error("odd length of UTF-32 char source %u", buflen);
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424 fatal();
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425 }
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426
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427 dbuf.reserve(buflen / 4);
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428 for (pu += bom; pu < pumax; pu++)
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429 { unsigned u;
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430
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431 u = le ? readlongLE(pu) : readlongBE(pu);
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432 if (u & ~0x7F)
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433 {
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434 if (u > 0x10FFFF)
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435 { error("UTF-32 value %08x greater than 0x10FFFF", u);
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436 fatal();
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437 }
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438 dbuf.writeUTF8(u);
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439 }
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440 else
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441 dbuf.writeByte(u);
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442 }
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443 dbuf.writeByte(0); // add 0 as sentinel for scanner
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444 buflen = dbuf.offset - 1; // don't include sentinel in count
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445 buf = (unsigned char *) dbuf.extractData();
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446 }
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447 else
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448 { // UTF-16LE (X86)
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|
|
449 // Convert it to UTF-8
|
|
|
450 le = 1;
|
|
|
451
|
|
|
452 Lutf16:
|
|
|
453 OutBuffer dbuf;
|
|
|
454 unsigned short *pu = (unsigned short *)(buf);
|
|
|
455 unsigned short *pumax = &pu[buflen / 2];
|
|
|
456
|
|
|
457 if (buflen & 1)
|
|
|
458 { error("odd length of UTF-16 char source %u", buflen);
|
|
|
459 fatal();
|
|
|
460 }
|
|
|
461
|
|
|
462 dbuf.reserve(buflen / 2);
|
|
|
463 for (pu += bom; pu < pumax; pu++)
|
|
|
464 { unsigned u;
|
|
|
465
|
|
|
466 u = le ? readwordLE(pu) : readwordBE(pu);
|
|
|
467 if (u & ~0x7F)
|
|
|
468 { if (u >= 0xD800 && u <= 0xDBFF)
|
|
|
469 { unsigned u2;
|
|
|
470
|
|
|
471 if (++pu > pumax)
|
|
|
472 { error("surrogate UTF-16 high value %04x at EOF", u);
|
|
|
473 fatal();
|
|
|
474 }
|
|
|
475 u2 = le ? readwordLE(pu) : readwordBE(pu);
|
|
|
476 if (u2 < 0xDC00 || u2 > 0xDFFF)
|
|
|
477 { error("surrogate UTF-16 low value %04x out of range", u2);
|
|
|
478 fatal();
|
|
|
479 }
|
|
|
480 u = (u - 0xD7C0) << 10;
|
|
|
481 u |= (u2 - 0xDC00);
|
|
|
482 }
|
|
|
483 else if (u >= 0xDC00 && u <= 0xDFFF)
|
|
|
484 { error("unpaired surrogate UTF-16 value %04x", u);
|
|
|
485 fatal();
|
|
|
486 }
|
|
|
487 else if (u == 0xFFFE || u == 0xFFFF)
|
|
|
488 { error("illegal UTF-16 value %04x", u);
|
|
|
489 fatal();
|
|
|
490 }
|
|
|
491 dbuf.writeUTF8(u);
|
|
|
492 }
|
|
|
493 else
|
|
|
494 dbuf.writeByte(u);
|
|
|
495 }
|
|
|
496 dbuf.writeByte(0); // add 0 as sentinel for scanner
|
|
|
497 buflen = dbuf.offset - 1; // don't include sentinel in count
|
|
|
498 buf = (unsigned char *) dbuf.extractData();
|
|
|
499 }
|
|
|
500 }
|
|
|
501 else if (buf[0] == 0xFE && buf[1] == 0xFF)
|
|
|
502 { // UTF-16BE
|
|
|
503 le = 0;
|
|
|
504 goto Lutf16;
|
|
|
505 }
|
|
|
506 else if (buflen >= 4 && buf[0] == 0 && buf[1] == 0 && buf[2] == 0xFE && buf[3] == 0xFF)
|
|
|
507 { // UTF-32BE
|
|
|
508 le = 0;
|
|
|
509 goto Lutf32;
|
|
|
510 }
|
|
|
511 else if (buflen >= 3 && buf[0] == 0xEF && buf[1] == 0xBB && buf[2] == 0xBF)
|
|
|
512 { // UTF-8
|
|
|
513
|
|
|
514 buf += 3;
|
|
|
515 buflen -= 3;
|
|
|
516 }
|
|
|
517 else
|
|
|
518 {
|
|
|
519 /* There is no BOM. Make use of Arcane Jill's insight that
|
|
|
520 * the first char of D source must be ASCII to
|
|
|
521 * figure out the encoding.
|
|
|
522 */
|
|
|
523
|
|
|
524 bom = 0;
|
|
|
525 if (buflen >= 4)
|
|
|
526 { if (buf[1] == 0 && buf[2] == 0 && buf[3] == 0)
|
|
|
527 { // UTF-32LE
|
|
|
528 le = 1;
|
|
|
529 goto Lutf32;
|
|
|
530 }
|
|
|
531 else if (buf[0] == 0 && buf[1] == 0 && buf[2] == 0)
|
|
|
532 { // UTF-32BE
|
|
|
533 le = 0;
|
|
|
534 goto Lutf32;
|
|
|
535 }
|
|
|
536 }
|
|
|
537 if (buflen >= 2)
|
|
|
538 {
|
|
|
539 if (buf[1] == 0)
|
|
|
540 { // UTF-16LE
|
|
|
541 le = 1;
|
|
|
542 goto Lutf16;
|
|
|
543 }
|
|
|
544 else if (buf[0] == 0)
|
|
|
545 { // UTF-16BE
|
|
|
546 le = 0;
|
|
|
547 goto Lutf16;
|
|
|
548 }
|
|
|
549 }
|
|
|
550
|
|
|
551 // It's UTF-8
|
|
|
552 if (buf[0] >= 0x80)
|
|
|
553 { error("source file must start with BOM or ASCII character, not \\x%02X", buf[0]);
|
|
|
554 fatal();
|
|
|
555 }
|
|
|
556 }
|
|
|
557 }
|
|
|
558
|
|
|
559 #ifdef IN_GCC
|
|
|
560 // dump utf-8 encoded source
|
|
|
561 if (dump_source)
|
|
|
562 { // %% srcname could contain a path ...
|
|
|
563 d_gcc_dump_source(srcname, "utf-8", buf, buflen);
|
|
|
564 }
|
|
|
565 #endif
|
|
|
566
|
|
|
567 /* If it starts with the string "Ddoc", then it's a documentation
|
|
|
568 * source file.
|
|
|
569 */
|
|
|
570 if (buflen >= 4 && memcmp(buf, "Ddoc", 4) == 0)
|
|
|
571 {
|
|
|
572 comment = buf + 4;
|
|
|
573 isDocFile = 1;
|
|
|
574 if (!docfile)
|
|
|
575 setDocfile();
|
|
|
576 return;
|
|
|
577 }
|
|
|
578 if (isHtml)
|
|
|
579 {
|
|
|
580 OutBuffer *dbuf = new OutBuffer();
|
|
|
581 Html h(srcname, buf, buflen);
|
|
|
582 h.extractCode(dbuf);
|
|
|
583 buf = dbuf->data;
|
|
|
584 buflen = dbuf->offset;
|
|
|
585 #ifdef IN_GCC
|
|
|
586 // dump extracted source
|
|
|
587 if (dump_source)
|
|
|
588 d_gcc_dump_source(srcname, "d.utf-8", buf, buflen);
|
|
|
589 #endif
|
|
|
590 }
|
|
|
591 Parser p(this, buf, buflen, docfile != NULL);
|
|
|
592 p.nextToken();
|
|
|
593 members = p.parseModule();
|
|
|
594 md = p.md;
|
|
|
595 numlines = p.loc.linnum;
|
|
|
596
|
|
|
597 DsymbolTable *dst;
|
|
|
598
|
|
|
599 if (md)
|
|
|
600 { this->ident = md->id;
|
|
|
601 dst = Package::resolve(md->packages, &this->parent, NULL);
|
|
|
602 }
|
|
|
603 else
|
|
|
604 {
|
|
|
605 dst = modules;
|
|
|
606
|
|
|
607 /* Check to see if module name is a valid identifier
|
|
|
608 */
|
|
|
609 if (!Lexer::isValidIdentifier(this->ident->toChars()))
|
|
|
610 error("has non-identifier characters in filename, use module declaration instead");
|
|
|
611 }
|
|
|
612
|
|
|
613 // Update global list of modules
|
|
|
614 if (!dst->insert(this))
|
|
|
615 {
|
|
|
616 if (md)
|
|
|
617 error(loc, "is in multiple packages %s", md->toChars());
|
|
|
618 else
|
|
|
619 error(loc, "is in multiple defined");
|
|
|
620 }
|
|
|
621 else
|
|
|
622 {
|
|
|
623 amodules.push(this);
|
|
|
624 }
|
|
|
625 }
|
|
|
626
|
|
|
627 void Module::semantic()
|
|
|
628 { int i;
|
|
|
629
|
|
|
630 if (semanticstarted)
|
|
|
631 return;
|
|
|
632
|
|
|
633 //printf("+Module::semantic(this = %p, '%s'): parent = %p\n", this, toChars(), parent);
|
|
|
634 semanticstarted = 1;
|
|
|
635
|
|
|
636 // Note that modules get their own scope, from scratch.
|
|
|
637 // This is so regardless of where in the syntax a module
|
|
|
638 // gets imported, it is unaffected by context.
|
|
|
639 Scope *sc = Scope::createGlobal(this); // create root scope
|
|
|
640
|
|
|
641 //printf("Module = %p, linkage = %d\n", sc->scopesym, sc->linkage);
|
|
|
642
|
|
|
643 // Add import of "object" if this module isn't "object"
|
|
|
644 if (ident != Id::object)
|
|
|
645 {
|
|
|
646 Import *im = new Import(0, NULL, Id::object, NULL, 0);
|
|
|
647 members->shift(im);
|
|
|
648 }
|
|
|
649
|
|
|
650 // Add all symbols into module's symbol table
|
|
|
651 symtab = new DsymbolTable();
|
|
|
652 for (i = 0; i < members->dim; i++)
|
|
|
653 { Dsymbol *s;
|
|
|
654
|
|
|
655 s = (Dsymbol *)members->data[i];
|
|
|
656 s->addMember(NULL, sc->scopesym, 1);
|
|
|
657 }
|
|
|
658
|
|
|
659 // Pass 1 semantic routines: do public side of the definition
|
|
|
660 for (i = 0; i < members->dim; i++)
|
|
|
661 { Dsymbol *s;
|
|
|
662
|
|
|
663 s = (Dsymbol *)members->data[i];
|
|
|
664 //printf("\tModule('%s'): '%s'.semantic()\n", toChars(), s->toChars());
|
|
|
665 s->semantic(sc);
|
|
|
666 runDeferredSemantic();
|
|
|
667 }
|
|
|
668
|
|
|
669 sc = sc->pop();
|
|
|
670 sc->pop();
|
|
|
671 semanticdone = semanticstarted;
|
|
|
672 //printf("-Module::semantic(this = %p, '%s'): parent = %p\n", this, toChars(), parent);
|
|
|
673 }
|
|
|
674
|
|
|
675 void Module::semantic2()
|
|
|
676 { int i;
|
|
|
677
|
|
|
678 if (deferred.dim)
|
|
|
679 {
|
|
|
680 for (int i = 0; i < deferred.dim; i++)
|
|
|
681 {
|
|
|
682 Dsymbol *sd = (Dsymbol *)deferred.data[i];
|
|
|
683
|
|
|
684 sd->error("unable to resolve forward reference in definition");
|
|
|
685 }
|
|
|
686 return;
|
|
|
687 }
|
|
|
688 //printf("Module::semantic2('%s'): parent = %p\n", toChars(), parent);
|
|
|
689 if (semanticstarted >= 2)
|
|
|
690 return;
|
|
|
691 assert(semanticstarted == 1);
|
|
|
692 semanticstarted = 2;
|
|
|
693
|
|
|
694 // Note that modules get their own scope, from scratch.
|
|
|
695 // This is so regardless of where in the syntax a module
|
|
|
696 // gets imported, it is unaffected by context.
|
|
|
697 Scope *sc = Scope::createGlobal(this); // create root scope
|
|
|
698 //printf("Module = %p\n", sc.scopesym);
|
|
|
699
|
|
|
700 // Pass 2 semantic routines: do initializers and function bodies
|
|
|
701 for (i = 0; i < members->dim; i++)
|
|
|
702 { Dsymbol *s;
|
|
|
703
|
|
|
704 s = (Dsymbol *)members->data[i];
|
|
|
705 s->semantic2(sc);
|
|
|
706 }
|
|
|
707
|
|
|
708 sc = sc->pop();
|
|
|
709 sc->pop();
|
|
|
710 semanticdone = semanticstarted;
|
|
|
711 //printf("-Module::semantic2('%s'): parent = %p\n", toChars(), parent);
|
|
|
712 }
|
|
|
713
|
|
|
714 void Module::semantic3()
|
|
|
715 { int i;
|
|
|
716
|
|
|
717 //printf("Module::semantic3('%s'): parent = %p\n", toChars(), parent);
|
|
|
718 if (semanticstarted >= 3)
|
|
|
719 return;
|
|
|
720 assert(semanticstarted == 2);
|
|
|
721 semanticstarted = 3;
|
|
|
722
|
|
|
723 // Note that modules get their own scope, from scratch.
|
|
|
724 // This is so regardless of where in the syntax a module
|
|
|
725 // gets imported, it is unaffected by context.
|
|
|
726 Scope *sc = Scope::createGlobal(this); // create root scope
|
|
|
727 //printf("Module = %p\n", sc.scopesym);
|
|
|
728
|
|
|
729 // Pass 3 semantic routines: do initializers and function bodies
|
|
|
730 for (i = 0; i < members->dim; i++)
|
|
|
731 { Dsymbol *s;
|
|
|
732
|
|
|
733 s = (Dsymbol *)members->data[i];
|
|
|
734 //printf("Module %s: %s.semantic3()\n", toChars(), s->toChars());
|
|
|
735 s->semantic3(sc);
|
|
|
736 }
|
|
|
737
|
|
|
738 sc = sc->pop();
|
|
|
739 sc->pop();
|
|
|
740 semanticdone = semanticstarted;
|
|
|
741 }
|
|
|
742
|
|
|
743 void Module::inlineScan()
|
|
|
744 { int i;
|
|
|
745
|
|
|
746 if (semanticstarted >= 4)
|
|
|
747 return;
|
|
|
748 assert(semanticstarted == 3);
|
|
|
749 semanticstarted = 4;
|
|
|
750
|
|
|
751 // Note that modules get their own scope, from scratch.
|
|
|
752 // This is so regardless of where in the syntax a module
|
|
|
753 // gets imported, it is unaffected by context.
|
|
|
754 //printf("Module = %p\n", sc.scopesym);
|
|
|
755
|
|
|
756 for (i = 0; i < members->dim; i++)
|
|
|
757 { Dsymbol *s;
|
|
|
758
|
|
|
759 s = (Dsymbol *)members->data[i];
|
|
|
760 //if (global.params.verbose)
|
|
|
761 //printf("inline scan symbol %s\n", s->toChars());
|
|
|
762
|
|
|
763 s->inlineScan();
|
|
|
764 }
|
|
|
765 semanticdone = semanticstarted;
|
|
|
766 }
|
|
|
767
|
|
|
768 /****************************************************
|
|
|
769 */
|
|
|
770
|
|
|
771 void Module::gensymfile()
|
|
|
772 {
|
|
|
773 OutBuffer buf;
|
|
|
774 HdrGenState hgs;
|
|
|
775
|
|
|
776 //printf("Module::gensymfile()\n");
|
|
|
777
|
|
|
778 buf.printf("// Sym file generated from '%s'", srcfile->toChars());
|
|
|
779 buf.writenl();
|
|
|
780
|
|
|
781 for (int i = 0; i < members->dim; i++)
|
|
|
782 { Dsymbol *s = (Dsymbol *)members->data[i];
|
|
|
783
|
|
|
784 s->toCBuffer(&buf, &hgs);
|
|
|
785 }
|
|
|
786
|
|
|
787 // Transfer image to file
|
|
|
788 symfile->setbuffer(buf.data, buf.offset);
|
|
|
789 buf.data = NULL;
|
|
|
790
|
|
|
791 symfile->writev();
|
|
|
792 }
|
|
|
793
|
|
|
794 /**********************************
|
|
|
795 * Determine if we need to generate an instance of ModuleInfo
|
|
|
796 * for this Module.
|
|
|
797 */
|
|
|
798
|
|
|
799 int Module::needModuleInfo()
|
|
|
800 {
|
|
|
801 return needmoduleinfo || global.params.cov;
|
|
|
802 }
|
|
|
803
|
|
|
804 Dsymbol *Module::search(Loc loc, Identifier *ident, int flags)
|
|
|
805 {
|
|
|
806 /* Since modules can be circularly referenced,
|
|
|
807 * need to stop infinite recursive searches.
|
|
|
808 */
|
|
|
809
|
|
|
810 //printf("%s Module::search('%s', flags = %d) insearch = %d\n", toChars(), ident->toChars(), flags, insearch);
|
|
|
811 Dsymbol *s;
|
|
|
812 if (insearch)
|
|
|
813 s = NULL;
|
|
|
814 else if (searchCacheIdent == ident && searchCacheFlags == flags)
|
|
|
815 s = searchCacheSymbol;
|
|
|
816 else
|
|
|
817 {
|
|
|
818 insearch = 1;
|
|
|
819 s = ScopeDsymbol::search(loc, ident, flags);
|
|
|
820 insearch = 0;
|
|
|
821
|
|
|
822 searchCacheIdent = ident;
|
|
|
823 searchCacheSymbol = s;
|
|
|
824 searchCacheFlags = flags;
|
|
|
825 }
|
|
|
826 return s;
|
|
|
827 }
|
|
|
828
|
|
|
829 /*******************************************
|
|
|
830 * Can't run semantic on s now, try again later.
|
|
|
831 */
|
|
|
832
|
|
|
833 void Module::addDeferredSemantic(Dsymbol *s)
|
|
|
834 {
|
|
|
835 // Don't add it if it is already there
|
|
|
836 for (int i = 0; i < deferred.dim; i++)
|
|
|
837 {
|
|
|
838 Dsymbol *sd = (Dsymbol *)deferred.data[i];
|
|
|
839
|
|
|
840 if (sd == s)
|
|
|
841 return;
|
|
|
842 }
|
|
|
843
|
|
|
844 //printf("Module::addDeferredSemantic('%s')\n", s->toChars());
|
|
|
845 deferred.push(s);
|
|
|
846 }
|
|
|
847
|
|
|
848
|
|
|
849 /******************************************
|
|
|
850 * Run semantic() on deferred symbols.
|
|
|
851 */
|
|
|
852
|
|
|
853 void Module::runDeferredSemantic()
|
|
|
854 {
|
|
|
855 size_t len;
|
|
|
856
|
|
|
857 static int nested;
|
|
|
858 if (nested)
|
|
|
859 return;
|
|
|
860 //if (deferred.dim) printf("+Module::runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim);
|
|
|
861 nested++;
|
|
|
862
|
|
|
863 do
|
|
|
864 {
|
|
|
865 dprogress = 0;
|
|
|
866 len = deferred.dim;
|
|
|
867 if (!len)
|
|
|
868 break;
|
|
|
869
|
|
|
870 Dsymbol **todo;
|
|
|
871 Dsymbol *tmp;
|
|
|
872 if (len == 1)
|
|
|
873 {
|
|
|
874 todo = &tmp;
|
|
|
875 }
|
|
|
876 else
|
|
|
877 {
|
|
|
878 todo = (Dsymbol **)alloca(len * sizeof(Dsymbol *));
|
|
|
879 assert(todo);
|
|
|
880 }
|
|
|
881 memcpy(todo, deferred.data, len * sizeof(Dsymbol *));
|
|
|
882 deferred.setDim(0);
|
|
|
883
|
|
|
884 for (int i = 0; i < len; i++)
|
|
|
885 {
|
|
|
886 Dsymbol *s = todo[i];
|
|
|
887
|
|
|
888 s->semantic(NULL);
|
|
|
889 //printf("deferred: %s, parent = %s\n", s->toChars(), s->parent->toChars());
|
|
|
890 }
|
|
|
891 //printf("\tdeferred.dim = %d, len = %d, dprogress = %d\n", deferred.dim, len, dprogress);
|
|
|
892 } while (deferred.dim < len || dprogress); // while making progress
|
|
|
893 nested--;
|
|
|
894 //printf("-Module::runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim);
|
|
|
895 }
|
|
|
896
|
|
|
897 /* =========================== ModuleDeclaration ===================== */
|
|
|
898
|
|
|
899 ModuleDeclaration::ModuleDeclaration(Array *packages, Identifier *id)
|
|
|
900 {
|
|
|
901 this->packages = packages;
|
|
|
902 this->id = id;
|
|
|
903 }
|
|
|
904
|
|
|
905 char *ModuleDeclaration::toChars()
|
|
|
906 {
|
|
|
907 OutBuffer buf;
|
|
|
908 int i;
|
|
|
909
|
|
|
910 if (packages && packages->dim)
|
|
|
911 {
|
|
|
912 for (i = 0; i < packages->dim; i++)
|
|
|
913 { Identifier *pid = (Identifier *)packages->data[i];
|
|
|
914
|
|
|
915 buf.writestring(pid->toChars());
|
|
|
916 buf.writeByte('.');
|
|
|
917 }
|
|
|
918 }
|
|
|
919 buf.writestring(id->toChars());
|
|
|
920 buf.writeByte(0);
|
|
|
921 return (char *)buf.extractData();
|
|
|
922 }
|
|
|
923
|
|
|
924 /* =========================== Package ===================== */
|
|
|
925
|
|
|
926 Package::Package(Identifier *ident)
|
|
|
927 : ScopeDsymbol(ident)
|
|
|
928 {
|
|
|
929 }
|
|
|
930
|
|
|
931
|
|
|
932 const char *Package::kind()
|
|
|
933 {
|
|
|
934 return "package";
|
|
|
935 }
|
|
|
936
|
|
|
937
|
|
|
938 DsymbolTable *Package::resolve(Array *packages, Dsymbol **pparent, Package **ppkg)
|
|
|
939 {
|
|
|
940 DsymbolTable *dst = Module::modules;
|
|
|
941 Dsymbol *parent = NULL;
|
|
|
942
|
|
|
943 //printf("Package::resolve()\n");
|
|
|
944 if (ppkg)
|
|
|
945 *ppkg = NULL;
|
|
|
946
|
|
|
947 if (packages)
|
|
|
948 { int i;
|
|
|
949
|
|
|
950 for (i = 0; i < packages->dim; i++)
|
|
|
951 { Identifier *pid = (Identifier *)packages->data[i];
|
|
|
952 Dsymbol *p;
|
|
|
953
|
|
|
954 p = dst->lookup(pid);
|
|
|
955 if (!p)
|
|
|
956 {
|
|
|
957 p = new Package(pid);
|
|
|
958 dst->insert(p);
|
|
|
959 p->parent = parent;
|
|
|
960 ((ScopeDsymbol *)p)->symtab = new DsymbolTable();
|
|
|
961 }
|
|
|
962 else
|
|
|
963 {
|
|
|
964 assert(p->isPackage());
|
|
|
965 if (p->isModule())
|
|
|
966 { p->error("module and package have the same name");
|
|
|
967 fatal();
|
|
|
968 break;
|
|
|
969 }
|
|
|
970 }
|
|
|
971 parent = p;
|
|
|
972 dst = ((Package *)p)->symtab;
|
|
|
973 if (ppkg && !*ppkg)
|
|
|
974 *ppkg = (Package *)p;
|
|
|
975 }
|
|
|
976 if (pparent)
|
|
|
977 {
|
|
|
978 *pparent = parent;
|
|
|
979 }
|
|
|
980 }
|
|
|
981 return dst;
|
|
|
982 }
|
