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