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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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52
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160 llfile = new File(llfilename);
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1
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161 symfile = new File(symfilename);
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162 }
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163
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164 void Module::setDocfile()
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165 {
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166 FileName *docfilename;
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167 char *argdoc;
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168
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169 if (global.params.docname)
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170 argdoc = global.params.docname;
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171 else if (global.params.preservePaths)
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172 argdoc = (char *)arg;
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173 else
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174 argdoc = FileName::name((char *)arg);
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175 if (!FileName::absolute(argdoc))
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176 { //FileName::ensurePathExists(global.params.docdir);
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177 argdoc = FileName::combine(global.params.docdir, argdoc);
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178 }
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179 if (global.params.docname)
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180 docfilename = new FileName(argdoc, 0);
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181 else
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182 docfilename = FileName::forceExt(argdoc, global.doc_ext);
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183
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184 if (docfilename->equals(srcfile->name))
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185 { error("Source file and documentation file have same name '%s'", srcfile->name->str);
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186 fatal();
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187 }
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188
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189 docfile = new File(docfilename);
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190 }
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191
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192 void Module::setHdrfile()
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193 {
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194 FileName *hdrfilename;
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195 char *arghdr;
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196
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197 if (global.params.hdrname)
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198 arghdr = global.params.hdrname;
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199 else if (global.params.preservePaths)
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200 arghdr = (char *)arg;
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201 else
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202 arghdr = FileName::name((char *)arg);
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203 if (!FileName::absolute(arghdr))
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204 { //FileName::ensurePathExists(global.params.hdrdir);
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205 arghdr = FileName::combine(global.params.hdrdir, arghdr);
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206 }
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207 if (global.params.hdrname)
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208 hdrfilename = new FileName(arghdr, 0);
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209 else
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210 hdrfilename = FileName::forceExt(arghdr, global.hdr_ext);
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211
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212 if (hdrfilename->equals(srcfile->name))
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213 { error("Source file and 'header' file have same name '%s'", srcfile->name->str);
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214 fatal();
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215 }
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216
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217 hdrfile = new File(hdrfilename);
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218 }
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219
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220 void Module::deleteObjFile()
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221 {
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222 if (global.params.obj)
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223 objfile->remove();
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224 //if (global.params.llvmBC)
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225 bcfile->remove();
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226 if (docfile)
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227 docfile->remove();
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228 }
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229
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230 Module::~Module()
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231 {
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232 }
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233
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234 char *Module::kind()
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235 {
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236 return "module";
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237 }
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238
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239 Module *Module::load(Loc loc, Array *packages, Identifier *ident)
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240 { Module *m;
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241 char *filename;
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242
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243 //printf("Module::load(ident = '%s')\n", ident->toChars());
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244
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245 // Build module filename by turning:
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246 // foo.bar.baz
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247 // into:
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248 // foo\bar\baz
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249 filename = ident->toChars();
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250 if (packages && packages->dim)
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251 {
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252 OutBuffer buf;
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253 int i;
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254
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255 for (i = 0; i < packages->dim; i++)
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256 { Identifier *pid = (Identifier *)packages->data[i];
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257
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258 buf.writestring(pid->toChars());
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259 #if _WIN32
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260 buf.writeByte('\\');
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261 #else
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262 buf.writeByte('/');
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263 #endif
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264 }
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265 buf.writestring(filename);
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266 buf.writeByte(0);
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267 filename = (char *)buf.extractData();
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268 }
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269
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270 m = new Module(filename, ident, 0, 0);
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271 m->loc = loc;
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272
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273 /* Search along global.path for .di file, then .d file.
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274 */
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275 char *result = NULL;
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276 FileName *fdi = FileName::forceExt(filename, global.hdr_ext);
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277 FileName *fd = FileName::forceExt(filename, global.mars_ext);
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278 char *sdi = fdi->toChars();
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279 char *sd = fd->toChars();
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280
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281 if (FileName::exists(sdi))
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282 result = sdi;
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283 else if (FileName::exists(sd))
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284 result = sd;
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285 else if (FileName::absolute(filename))
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286 ;
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287 else if (!global.path)
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288 ;
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289 else
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290 {
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291 for (size_t i = 0; i < global.path->dim; i++)
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292 {
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293 char *p = (char *)global.path->data[i];
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294 char *n = FileName::combine(p, sdi);
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295 if (FileName::exists(n))
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296 { result = n;
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297 break;
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298 }
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299 mem.free(n);
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300 n = FileName::combine(p, sd);
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301 if (FileName::exists(n))
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302 { result = n;
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303 break;
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304 }
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305 mem.free(n);
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306 }
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307 }
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308 if (result)
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309 m->srcfile = new File(result);
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310
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311 if (global.params.verbose)
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312 {
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313 printf("import ");
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314 if (packages)
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315 {
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316 for (size_t i = 0; i < packages->dim; i++)
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317 { Identifier *pid = (Identifier *)packages->data[i];
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318 printf("%s.", pid->toChars());
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319 }
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320 }
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321 printf("%s\t(%s)\n", ident->toChars(), m->srcfile->toChars());
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322 }
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323
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324 m->read(loc);
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325 m->parse();
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326
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327 #ifdef IN_GCC
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328 d_gcc_magic_module(m);
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329 #endif
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330
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331 return m;
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332 }
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333
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334 void Module::read(Loc loc)
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335 {
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336 //printf("Module::read('%s') file '%s'\n", toChars(), srcfile->toChars());
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337 if (srcfile->read())
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338 { error(loc, "cannot read file '%s'", srcfile->toChars());
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339 fatal();
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340 }
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341 }
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342
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343 inline unsigned readwordLE(unsigned short *p)
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344 {
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345 #if __I86__
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346 return *p;
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347 #else
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348 return (((unsigned char *)p)[1] << 8) | ((unsigned char *)p)[0];
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349 #endif
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350 }
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351
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352 inline unsigned readwordBE(unsigned short *p)
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353 {
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354 return (((unsigned char *)p)[0] << 8) | ((unsigned char *)p)[1];
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355 }
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356
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357 inline unsigned readlongLE(unsigned *p)
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358 {
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359 #if __I86__
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360 return *p;
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361 #else
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362 return ((unsigned char *)p)[0] |
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363 (((unsigned char *)p)[1] << 8) |
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364 (((unsigned char *)p)[2] << 16) |
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365 (((unsigned char *)p)[3] << 24);
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366 #endif
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367 }
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368
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369 inline unsigned readlongBE(unsigned *p)
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370 {
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371 return ((unsigned char *)p)[3] |
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372 (((unsigned char *)p)[2] << 8) |
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373 (((unsigned char *)p)[1] << 16) |
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374 (((unsigned char *)p)[0] << 24);
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375 }
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376
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377 #if IN_GCC
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378 void Module::parse(bool dump_source)
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379 #else
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380 void Module::parse()
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381 #endif
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382 { char *srcname;
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383 unsigned char *buf;
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384 unsigned buflen;
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385 unsigned le;
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386 unsigned bom;
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387
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388 //printf("Module::parse()\n");
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389
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390 srcname = srcfile->name->toChars();
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391 //printf("Module::parse(srcname = '%s')\n", srcname);
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392
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393 buf = srcfile->buffer;
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394 buflen = srcfile->len;
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395
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396 if (buflen >= 2)
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397 {
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398 /* Convert all non-UTF-8 formats to UTF-8.
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399 * BOM : http://www.unicode.org/faq/utf_bom.html
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400 * 00 00 FE FF UTF-32BE, big-endian
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401 * FF FE 00 00 UTF-32LE, little-endian
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402 * FE FF UTF-16BE, big-endian
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403 * FF FE UTF-16LE, little-endian
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404 * EF BB BF UTF-8
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405 */
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406
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407 bom = 1; // assume there's a BOM
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408 if (buf[0] == 0xFF && buf[1] == 0xFE)
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409 {
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410 if (buflen >= 4 && buf[2] == 0 && buf[3] == 0)
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411 { // UTF-32LE
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412 le = 1;
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413
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414 Lutf32:
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415 OutBuffer dbuf;
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416 unsigned *pu = (unsigned *)(buf);
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417 unsigned *pumax = &pu[buflen / 4];
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418
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419 if (buflen & 3)
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420 { error("odd length of UTF-32 char source %u", buflen);
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421 fatal();
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422 }
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423
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424 dbuf.reserve(buflen / 4);
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425 for (pu += bom; pu < pumax; pu++)
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426 { unsigned u;
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427
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428 u = le ? readlongLE(pu) : readlongBE(pu);
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429 if (u & ~0x7F)
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430 {
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431 if (u > 0x10FFFF)
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432 { error("UTF-32 value %08x greater than 0x10FFFF", u);
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433 fatal();
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434 }
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435 dbuf.writeUTF8(u);
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436 }
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437 else
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438 dbuf.writeByte(u);
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439 }
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440 dbuf.writeByte(0); // add 0 as sentinel for scanner
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441 buflen = dbuf.offset - 1; // don't include sentinel in count
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442 buf = (unsigned char *) dbuf.extractData();
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443 }
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444 else
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445 { // UTF-16LE (X86)
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446 // Convert it to UTF-8
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447 le = 1;
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448
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449 Lutf16:
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|
|
450 OutBuffer dbuf;
|
|
|
451 unsigned short *pu = (unsigned short *)(buf);
|
|
|
452 unsigned short *pumax = &pu[buflen / 2];
|
|
|
453
|
|
|
454 if (buflen & 1)
|
|
|
455 { error("odd length of UTF-16 char source %u", buflen);
|
|
|
456 fatal();
|
|
|
457 }
|
|
|
458
|
|
|
459 dbuf.reserve(buflen / 2);
|
|
|
460 for (pu += bom; pu < pumax; pu++)
|
|
|
461 { unsigned u;
|
|
|
462
|
|
|
463 u = le ? readwordLE(pu) : readwordBE(pu);
|
|
|
464 if (u & ~0x7F)
|
|
|
465 { if (u >= 0xD800 && u <= 0xDBFF)
|
|
|
466 { unsigned u2;
|
|
|
467
|
|
|
468 if (++pu > pumax)
|
|
|
469 { error("surrogate UTF-16 high value %04x at EOF", u);
|
|
|
470 fatal();
|
|
|
471 }
|
|
|
472 u2 = le ? readwordLE(pu) : readwordBE(pu);
|
|
|
473 if (u2 < 0xDC00 || u2 > 0xDFFF)
|
|
|
474 { error("surrogate UTF-16 low value %04x out of range", u2);
|
|
|
475 fatal();
|
|
|
476 }
|
|
|
477 u = (u - 0xD7C0) << 10;
|
|
|
478 u |= (u2 - 0xDC00);
|
|
|
479 }
|
|
|
480 else if (u >= 0xDC00 && u <= 0xDFFF)
|
|
|
481 { error("unpaired surrogate UTF-16 value %04x", u);
|
|
|
482 fatal();
|
|
|
483 }
|
|
|
484 else if (u == 0xFFFE || u == 0xFFFF)
|
|
|
485 { error("illegal UTF-16 value %04x", u);
|
|
|
486 fatal();
|
|
|
487 }
|
|
|
488 dbuf.writeUTF8(u);
|
|
|
489 }
|
|
|
490 else
|
|
|
491 dbuf.writeByte(u);
|
|
|
492 }
|
|
|
493 dbuf.writeByte(0); // add 0 as sentinel for scanner
|
|
|
494 buflen = dbuf.offset - 1; // don't include sentinel in count
|
|
|
495 buf = (unsigned char *) dbuf.extractData();
|
|
|
496 }
|
|
|
497 }
|
|
|
498 else if (buf[0] == 0xFE && buf[1] == 0xFF)
|
|
|
499 { // UTF-16BE
|
|
|
500 le = 0;
|
|
|
501 goto Lutf16;
|
|
|
502 }
|
|
|
503 else if (buflen >= 4 && buf[0] == 0 && buf[1] == 0 && buf[2] == 0xFE && buf[3] == 0xFF)
|
|
|
504 { // UTF-32BE
|
|
|
505 le = 0;
|
|
|
506 goto Lutf32;
|
|
|
507 }
|
|
|
508 else if (buflen >= 3 && buf[0] == 0xEF && buf[1] == 0xBB && buf[2] == 0xBF)
|
|
|
509 { // UTF-8
|
|
|
510
|
|
|
511 buf += 3;
|
|
|
512 buflen -= 3;
|
|
|
513 }
|
|
|
514 else
|
|
|
515 {
|
|
|
516 /* There is no BOM. Make use of Arcane Jill's insight that
|
|
|
517 * the first char of D source must be ASCII to
|
|
|
518 * figure out the encoding.
|
|
|
519 */
|
|
|
520
|
|
|
521 bom = 0;
|
|
|
522 if (buflen >= 4)
|
|
|
523 { if (buf[1] == 0 && buf[2] == 0 && buf[3] == 0)
|
|
|
524 { // UTF-32LE
|
|
|
525 le = 1;
|
|
|
526 goto Lutf32;
|
|
|
527 }
|
|
|
528 else if (buf[0] == 0 && buf[1] == 0 && buf[2] == 0)
|
|
|
529 { // UTF-32BE
|
|
|
530 le = 0;
|
|
|
531 goto Lutf32;
|
|
|
532 }
|
|
|
533 }
|
|
|
534 if (buflen >= 2)
|
|
|
535 {
|
|
|
536 if (buf[1] == 0)
|
|
|
537 { // UTF-16LE
|
|
|
538 le = 1;
|
|
|
539 goto Lutf16;
|
|
|
540 }
|
|
|
541 else if (buf[0] == 0)
|
|
|
542 { // UTF-16BE
|
|
|
543 le = 0;
|
|
|
544 goto Lutf16;
|
|
|
545 }
|
|
|
546 }
|
|
|
547
|
|
|
548 // It's UTF-8
|
|
|
549 if (buf[0] >= 0x80)
|
|
|
550 { error("source file must start with BOM or ASCII character, not \\x%02X", buf[0]);
|
|
|
551 fatal();
|
|
|
552 }
|
|
|
553 }
|
|
|
554 }
|
|
|
555
|
|
|
556 #ifdef IN_GCC
|
|
|
557 // dump utf-8 encoded source
|
|
|
558 if (dump_source)
|
|
|
559 { // %% srcname could contain a path ...
|
|
|
560 d_gcc_dump_source(srcname, "utf-8", buf, buflen);
|
|
|
561 }
|
|
|
562 #endif
|
|
|
563
|
|
|
564 /* If it starts with the string "Ddoc", then it's a documentation
|
|
|
565 * source file.
|
|
|
566 */
|
|
|
567 if (buflen >= 4 && memcmp(buf, "Ddoc", 4) == 0)
|
|
|
568 {
|
|
|
569 comment = buf + 4;
|
|
|
570 isDocFile = 1;
|
|
|
571 if (!docfile)
|
|
|
572 setDocfile();
|
|
|
573 return;
|
|
|
574 }
|
|
|
575 if (isHtml)
|
|
|
576 {
|
|
|
577 OutBuffer *dbuf = new OutBuffer();
|
|
|
578 Html h(srcname, buf, buflen);
|
|
|
579 h.extractCode(dbuf);
|
|
|
580 buf = dbuf->data;
|
|
|
581 buflen = dbuf->offset;
|
|
|
582 #ifdef IN_GCC
|
|
|
583 // dump extracted source
|
|
|
584 if (dump_source)
|
|
|
585 d_gcc_dump_source(srcname, "d.utf-8", buf, buflen);
|
|
|
586 #endif
|
|
|
587 }
|
|
|
588 Parser p(this, buf, buflen, docfile != NULL);
|
|
|
589 p.nextToken();
|
|
|
590 members = p.parseModule();
|
|
|
591 md = p.md;
|
|
|
592 numlines = p.loc.linnum;
|
|
|
593
|
|
|
594 DsymbolTable *dst;
|
|
|
595
|
|
|
596 if (md)
|
|
|
597 { this->ident = md->id;
|
|
|
598 dst = Package::resolve(md->packages, &this->parent, NULL);
|
|
|
599 }
|
|
|
600 else
|
|
|
601 {
|
|
|
602 dst = modules;
|
|
|
603
|
|
|
604 /* Check to see if module name is a valid identifier
|
|
|
605 */
|
|
|
606 if (!Lexer::isValidIdentifier(this->ident->toChars()))
|
|
|
607 error("has non-identifier characters in filename, use module declaration instead");
|
|
|
608 }
|
|
|
609
|
|
|
610 // Update global list of modules
|
|
|
611 if (!dst->insert(this))
|
|
|
612 {
|
|
|
613 if (md)
|
|
|
614 error(loc, "is in multiple packages %s", md->toChars());
|
|
|
615 else
|
|
|
616 error(loc, "is in multiple defined");
|
|
|
617 }
|
|
|
618 else
|
|
|
619 {
|
|
|
620 amodules.push(this);
|
|
|
621 }
|
|
|
622 }
|
|
|
623
|
|
|
624 void Module::semantic()
|
|
|
625 { int i;
|
|
|
626
|
|
|
627 if (semanticstarted)
|
|
|
628 return;
|
|
|
629
|
|
|
630 //printf("+Module::semantic(this = %p, '%s'): parent = %p\n", this, toChars(), parent);
|
|
|
631 semanticstarted = 1;
|
|
|
632
|
|
|
633 // Note that modules get their own scope, from scratch.
|
|
|
634 // This is so regardless of where in the syntax a module
|
|
|
635 // gets imported, it is unaffected by context.
|
|
|
636 Scope *sc = Scope::createGlobal(this); // create root scope
|
|
|
637
|
|
|
638 //printf("Module = %p, linkage = %d\n", sc->scopesym, sc->linkage);
|
|
|
639
|
|
|
640 // Add import of "object" if this module isn't "object"
|
|
|
641 if (ident != Id::object)
|
|
|
642 {
|
|
|
643 Import *im = new Import(0, NULL, Id::object, NULL, 0);
|
|
|
644 members->shift(im);
|
|
|
645 }
|
|
|
646
|
|
|
647 // Add all symbols into module's symbol table
|
|
|
648 symtab = new DsymbolTable();
|
|
|
649 for (i = 0; i < members->dim; i++)
|
|
|
650 { Dsymbol *s;
|
|
|
651
|
|
|
652 s = (Dsymbol *)members->data[i];
|
|
|
653 s->addMember(NULL, sc->scopesym, 1);
|
|
|
654 }
|
|
|
655
|
|
|
656 // Pass 1 semantic routines: do public side of the definition
|
|
|
657 for (i = 0; i < members->dim; i++)
|
|
|
658 { Dsymbol *s;
|
|
|
659
|
|
|
660 s = (Dsymbol *)members->data[i];
|
|
|
661 //printf("\tModule('%s'): '%s'.semantic()\n", toChars(), s->toChars());
|
|
|
662 s->semantic(sc);
|
|
|
663 runDeferredSemantic();
|
|
|
664 }
|
|
|
665
|
|
|
666 sc = sc->pop();
|
|
|
667 sc->pop();
|
|
|
668 semanticdone = semanticstarted;
|
|
|
669 //printf("-Module::semantic(this = %p, '%s'): parent = %p\n", this, toChars(), parent);
|
|
|
670 }
|
|
|
671
|
|
|
672 void Module::semantic2()
|
|
|
673 { int i;
|
|
|
674
|
|
|
675 if (deferred.dim)
|
|
|
676 {
|
|
|
677 for (int i = 0; i < deferred.dim; i++)
|
|
|
678 {
|
|
|
679 Dsymbol *sd = (Dsymbol *)deferred.data[i];
|
|
|
680
|
|
|
681 sd->error("unable to resolve forward reference in definition");
|
|
|
682 }
|
|
|
683 return;
|
|
|
684 }
|
|
|
685 //printf("Module::semantic2('%s'): parent = %p\n", toChars(), parent);
|
|
|
686 if (semanticstarted >= 2)
|
|
|
687 return;
|
|
|
688 assert(semanticstarted == 1);
|
|
|
689 semanticstarted = 2;
|
|
|
690
|
|
|
691 // Note that modules get their own scope, from scratch.
|
|
|
692 // This is so regardless of where in the syntax a module
|
|
|
693 // gets imported, it is unaffected by context.
|
|
|
694 Scope *sc = Scope::createGlobal(this); // create root scope
|
|
|
695 //printf("Module = %p\n", sc.scopesym);
|
|
|
696
|
|
|
697 // Pass 2 semantic routines: do initializers and function bodies
|
|
|
698 for (i = 0; i < members->dim; i++)
|
|
|
699 { Dsymbol *s;
|
|
|
700
|
|
|
701 s = (Dsymbol *)members->data[i];
|
|
|
702 s->semantic2(sc);
|
|
|
703 }
|
|
|
704
|
|
|
705 sc = sc->pop();
|
|
|
706 sc->pop();
|
|
|
707 semanticdone = semanticstarted;
|
|
|
708 //printf("-Module::semantic2('%s'): parent = %p\n", toChars(), parent);
|
|
|
709 }
|
|
|
710
|
|
|
711 void Module::semantic3()
|
|
|
712 { int i;
|
|
|
713
|
|
|
714 //printf("Module::semantic3('%s'): parent = %p\n", toChars(), parent);
|
|
|
715 if (semanticstarted >= 3)
|
|
|
716 return;
|
|
|
717 assert(semanticstarted == 2);
|
|
|
718 semanticstarted = 3;
|
|
|
719
|
|
|
720 // Note that modules get their own scope, from scratch.
|
|
|
721 // This is so regardless of where in the syntax a module
|
|
|
722 // gets imported, it is unaffected by context.
|
|
|
723 Scope *sc = Scope::createGlobal(this); // create root scope
|
|
|
724 //printf("Module = %p\n", sc.scopesym);
|
|
|
725
|
|
|
726 // Pass 3 semantic routines: do initializers and function bodies
|
|
|
727 for (i = 0; i < members->dim; i++)
|
|
|
728 { Dsymbol *s;
|
|
|
729
|
|
|
730 s = (Dsymbol *)members->data[i];
|
|
|
731 //printf("Module %s: %s.semantic3()\n", toChars(), s->toChars());
|
|
|
732 s->semantic3(sc);
|
|
|
733 }
|
|
|
734
|
|
|
735 sc = sc->pop();
|
|
|
736 sc->pop();
|
|
|
737 semanticdone = semanticstarted;
|
|
|
738 }
|
|
|
739
|
|
|
740 void Module::inlineScan()
|
|
|
741 { int i;
|
|
|
742
|
|
|
743 if (semanticstarted >= 4)
|
|
|
744 return;
|
|
|
745 assert(semanticstarted == 3);
|
|
|
746 semanticstarted = 4;
|
|
|
747
|
|
|
748 // Note that modules get their own scope, from scratch.
|
|
|
749 // This is so regardless of where in the syntax a module
|
|
|
750 // gets imported, it is unaffected by context.
|
|
|
751 //printf("Module = %p\n", sc.scopesym);
|
|
|
752
|
|
|
753 for (i = 0; i < members->dim; i++)
|
|
|
754 { Dsymbol *s;
|
|
|
755
|
|
|
756 s = (Dsymbol *)members->data[i];
|
|
|
757 //if (global.params.verbose)
|
|
|
758 //printf("inline scan symbol %s\n", s->toChars());
|
|
|
759
|
|
|
760 s->inlineScan();
|
|
|
761 }
|
|
|
762 semanticdone = semanticstarted;
|
|
|
763 }
|
|
|
764
|
|
|
765 /****************************************************
|
|
|
766 */
|
|
|
767
|
|
|
768 void Module::gensymfile()
|
|
|
769 {
|
|
|
770 OutBuffer buf;
|
|
|
771 HdrGenState hgs;
|
|
|
772 int i;
|
|
|
773
|
|
|
774 //printf("Module::gensymfile()\n");
|
|
|
775
|
|
|
776 buf.printf("// Sym file generated from '%s'", srcfile->toChars());
|
|
|
777 buf.writenl();
|
|
|
778
|
|
|
779 for (i = 0; i < members->dim; i++)
|
|
|
780 {
|
|
|
781 Dsymbol *s;
|
|
|
782
|
|
|
783 s = (Dsymbol *)members->data[i];
|
|
|
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 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 }
|
