Mercurial > projects > ldc
annotate dmd/module.c @ 1350:15e9762bb620
Adds explicit alignment information for alloca instructions in general, there's a few cases that still needs to be looked at but this should catch the majority. Fixes ticket #293 .
author | Tomas Lindquist Olsen <tomas.l.olsen gmail com> |
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date | Thu, 14 May 2009 13:26:40 +0200 |
parents | 7af860e4f403 |
children | 68dea5bae9e9 |
rev | line source |
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336 | 1 |
2 // Compiler implementation of the D programming language | |
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3 // Copyright (c) 1999-2009 by Digital Mars |
336 | 4 // All Rights Reserved |
5 // written by Walter Bright | |
6 // http://www.digitalmars.com | |
7 // License for redistribution is by either the Artistic License | |
8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
9 // See the included readme.txt for details. | |
10 | |
11 #include <stdio.h> | |
12 #include <stdlib.h> | |
13 #include <assert.h> | |
14 | |
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15 #if (defined (__SVR4) && defined (__sun)) |
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16 #include <alloca.h> |
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17 #endif |
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18 |
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19 #if defined(_MSC_VER) || defined(__MINGW32__) |
336 | 20 #include <malloc.h> |
21 #endif | |
22 | |
23 #if IN_GCC | |
24 #include "gdc_alloca.h" | |
25 #endif | |
26 | |
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27 #include "rmem.h" |
336 | 28 |
29 #include "mars.h" | |
30 #include "module.h" | |
31 #include "parse.h" | |
32 #include "scope.h" | |
33 #include "identifier.h" | |
34 #include "id.h" | |
35 #include "import.h" | |
36 #include "dsymbol.h" | |
37 #include "hdrgen.h" | |
38 #include "lexer.h" | |
39 | |
40 #define MARS 1 | |
41 #include "html.h" | |
42 | |
43 #ifdef IN_GCC | |
44 #include "d-dmd-gcc.h" | |
45 #endif | |
46 | |
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47 |
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48 #include "llvm/Support/CommandLine.h" |
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49 |
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50 static llvm::cl::opt<bool> preservePaths("op", |
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51 llvm::cl::desc("Do not strip paths from source file"), |
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52 llvm::cl::ZeroOrMore); |
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53 |
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54 static llvm::cl::opt<bool> fqnNames("oq", |
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55 llvm::cl::desc("Write object files with fully qualified names"), |
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56 llvm::cl::ZeroOrMore); |
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57 |
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58 |
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59 |
336 | 60 ClassDeclaration *Module::moduleinfo; |
61 | |
62 Module *Module::rootModule; | |
63 DsymbolTable *Module::modules; | |
64 Array Module::amodules; | |
65 | |
66 Array Module::deferred; // deferred Dsymbol's needing semantic() run on them | |
67 unsigned Module::dprogress; | |
68 | |
69 void Module::init() | |
70 { | |
71 modules = new DsymbolTable(); | |
72 } | |
73 | |
74 Module::Module(char *filename, Identifier *ident, int doDocComment, int doHdrGen) | |
75 : Package(ident) | |
76 { | |
77 FileName *srcfilename; | |
78 | |
79 // printf("Module::Module(filename = '%s', ident = '%s')\n", filename, ident->toChars()); | |
80 this->arg = filename; | |
81 md = NULL; | |
82 errors = 0; | |
83 numlines = 0; | |
84 members = NULL; | |
85 isHtml = 0; | |
86 isDocFile = 0; | |
87 needmoduleinfo = 0; | |
88 #ifdef IN_GCC | |
89 strictlyneedmoduleinfo = 0; | |
90 #endif | |
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91 selfimports = 0; |
336 | 92 insearch = 0; |
93 searchCacheIdent = NULL; | |
94 searchCacheSymbol = NULL; | |
95 searchCacheFlags = 0; | |
96 semanticstarted = 0; | |
97 semanticdone = 0; | |
98 decldefs = NULL; | |
99 vmoduleinfo = NULL; | |
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100 #if IN_DMD |
336 | 101 massert = NULL; |
102 marray = NULL; | |
103 sictor = NULL; | |
104 sctor = NULL; | |
105 sdtor = NULL; | |
106 stest = NULL; | |
107 sfilename = NULL; | |
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108 #endif |
336 | 109 root = 0; |
110 importedFrom = NULL; | |
111 srcfile = NULL; | |
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112 objfile = NULL; |
336 | 113 docfile = NULL; |
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114 hdrfile = NULL; |
336 | 115 |
116 debuglevel = 0; | |
117 debugids = NULL; | |
118 debugidsNot = NULL; | |
119 versionlevel = 0; | |
120 versionids = NULL; | |
121 versionidsNot = NULL; | |
122 | |
123 macrotable = NULL; | |
124 escapetable = NULL; | |
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125 #if IN_DMD |
336 | 126 doppelganger = 0; |
127 cov = NULL; | |
128 covb = NULL; | |
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129 #endif |
336 | 130 |
131 srcfilename = FileName::defaultExt(filename, global.mars_ext); | |
132 if (!srcfilename->equalsExt(global.mars_ext) && | |
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133 !srcfilename->equalsExt(global.hdr_ext) && |
336 | 134 !srcfilename->equalsExt("dd")) |
135 { | |
136 if (srcfilename->equalsExt("html") || | |
137 srcfilename->equalsExt("htm") || | |
138 srcfilename->equalsExt("xhtml")) | |
139 isHtml = 1; | |
140 else | |
141 { error("source file name '%s' must have .%s extension", srcfilename->toChars(), global.mars_ext); | |
142 fatal(); | |
143 } | |
144 } | |
145 srcfile = new File(srcfilename); | |
146 | |
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147 // LDC |
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148 llvmForceLogging = false; |
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149 this->doDocComment = doDocComment; |
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150 this->doHdrGen = doHdrGen; |
336 | 151 } |
152 | |
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153 File* Module::buildFilePath(const char* forcename, const char* path, const char* ext) |
336 | 154 { |
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155 const char *argobj; |
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156 if (forcename) |
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157 argobj = forcename; |
336 | 158 else |
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159 { |
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160 if (preservePaths) |
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161 argobj = (char*)this->arg; |
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162 else |
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163 argobj = FileName::name((char*)this->arg); |
336 | 164 |
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165 if (fqnNames) |
643 | 166 { |
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167 if(md) |
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168 argobj = FileName::replaceName((char*)argobj, md->toChars()); |
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169 else |
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170 argobj = FileName::replaceName((char*)argobj, toChars()); |
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171 |
643 | 172 // add ext, otherwise forceExt will make nested.module into nested.bc |
173 size_t len = strlen(argobj); | |
174 size_t extlen = strlen(ext); | |
175 char* s = (char *)alloca(len + 1 + extlen + 1); | |
176 memcpy(s, argobj, len); | |
177 s[len] = '.'; | |
178 memcpy(s + len + 1, ext, extlen + 1); | |
179 s[len+1+extlen] = 0; | |
180 argobj = s; | |
181 } | |
336 | 182 } |
183 | |
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184 if (!FileName::absolute(argobj)) |
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185 { |
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186 argobj = FileName::combine(path, argobj); |
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187 } |
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188 |
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189 FileName::ensurePathExists(FileName::path(argobj)); |
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190 |
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191 // always append the extension! otherwise hard to make output switches consistent |
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192 // if (forcename) |
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193 // return new File(argobj); |
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194 // else |
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195 // allow for .o and .obj on windows |
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196 #if _WIN32 |
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197 if (ext == global.params.objdir && FileName::ext(argobj) |
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198 && stricmp(FileName::ext(argobj), global.obj_ext_alt) == 0) |
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199 return new File((char*)argobj); |
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200 #endif |
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201 return new File(FileName::forceExt(argobj, ext)); |
336 | 202 } |
203 | |
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204 void Module::buildTargetFiles() |
336 | 205 { |
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206 if(objfile && |
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207 (!doDocComment || docfile) && |
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208 (!doHdrGen || hdrfile)) |
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209 return; |
336 | 210 |
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211 if(!objfile) |
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212 objfile = Module::buildFilePath(global.params.objname, global.params.objdir, global.obj_ext); |
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213 if(doDocComment && !docfile) |
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214 docfile = Module::buildFilePath(global.params.docname, global.params.docdir, global.doc_ext); |
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215 if(doHdrGen && !hdrfile) |
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216 hdrfile = Module::buildFilePath(global.params.hdrname, global.params.hdrdir, global.hdr_ext); |
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217 |
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218 // safety check: never allow obj, doc or hdr file to have the source file's name |
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219 if(stricmp(FileName::name(objfile->name->str), FileName::name((char*)this->arg)) == 0) |
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220 { |
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221 error("Output object files with the same name as the source file are forbidden"); |
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222 fatal(); |
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223 } |
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224 if(docfile && stricmp(FileName::name(docfile->name->str), FileName::name((char*)this->arg)) == 0) |
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225 { |
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226 error("Output doc files with the same name as the source file are forbidden"); |
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227 fatal(); |
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228 } |
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229 if(hdrfile && stricmp(FileName::name(hdrfile->name->str), FileName::name((char*)this->arg)) == 0) |
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230 { |
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231 error("Output header files with the same name as the source file are forbidden"); |
598
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232 fatal(); |
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233 } |
336 | 234 } |
235 | |
236 void Module::deleteObjFile() | |
237 { | |
238 if (global.params.obj) | |
239 objfile->remove(); | |
240 //if (global.params.llvmBC) | |
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241 //bcfile->remove(); |
604
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242 if (doDocComment && docfile) |
336 | 243 docfile->remove(); |
244 } | |
245 | |
246 Module::~Module() | |
247 { | |
248 } | |
249 | |
250 const char *Module::kind() | |
251 { | |
252 return "module"; | |
253 } | |
254 | |
255 Module *Module::load(Loc loc, Array *packages, Identifier *ident) | |
256 { Module *m; | |
257 char *filename; | |
258 | |
259 //printf("Module::load(ident = '%s')\n", ident->toChars()); | |
260 | |
261 // Build module filename by turning: | |
262 // foo.bar.baz | |
263 // into: | |
264 // foo\bar\baz | |
265 filename = ident->toChars(); | |
266 if (packages && packages->dim) | |
267 { | |
268 OutBuffer buf; | |
269 int i; | |
270 | |
271 for (i = 0; i < packages->dim; i++) | |
272 { Identifier *pid = (Identifier *)packages->data[i]; | |
273 | |
274 buf.writestring(pid->toChars()); | |
275 #if _WIN32 | |
276 buf.writeByte('\\'); | |
277 #else | |
278 buf.writeByte('/'); | |
279 #endif | |
280 } | |
281 buf.writestring(filename); | |
282 buf.writeByte(0); | |
283 filename = (char *)buf.extractData(); | |
284 } | |
285 | |
286 m = new Module(filename, ident, 0, 0); | |
287 m->loc = loc; | |
288 | |
289 /* Search along global.path for .di file, then .d file. | |
290 */ | |
291 char *result = NULL; | |
292 FileName *fdi = FileName::forceExt(filename, global.hdr_ext); | |
293 FileName *fd = FileName::forceExt(filename, global.mars_ext); | |
294 char *sdi = fdi->toChars(); | |
295 char *sd = fd->toChars(); | |
296 | |
297 if (FileName::exists(sdi)) | |
298 result = sdi; | |
299 else if (FileName::exists(sd)) | |
300 result = sd; | |
301 else if (FileName::absolute(filename)) | |
302 ; | |
303 else if (!global.path) | |
304 ; | |
305 else | |
306 { | |
307 for (size_t i = 0; i < global.path->dim; i++) | |
308 { | |
309 char *p = (char *)global.path->data[i]; | |
310 char *n = FileName::combine(p, sdi); | |
311 if (FileName::exists(n)) | |
312 { result = n; | |
313 break; | |
314 } | |
315 mem.free(n); | |
316 n = FileName::combine(p, sd); | |
317 if (FileName::exists(n)) | |
318 { result = n; | |
319 break; | |
320 } | |
321 mem.free(n); | |
322 } | |
323 } | |
324 if (result) | |
325 m->srcfile = new File(result); | |
326 | |
327 if (global.params.verbose) | |
328 { | |
329 printf("import "); | |
330 if (packages) | |
331 { | |
332 for (size_t i = 0; i < packages->dim; i++) | |
333 { Identifier *pid = (Identifier *)packages->data[i]; | |
334 printf("%s.", pid->toChars()); | |
335 } | |
336 } | |
337 printf("%s\t(%s)\n", ident->toChars(), m->srcfile->toChars()); | |
338 } | |
339 | |
340 m->read(loc); | |
341 m->parse(); | |
342 | |
343 #ifdef IN_GCC | |
344 d_gcc_magic_module(m); | |
345 #endif | |
346 | |
347 return m; | |
348 } | |
349 | |
350 void Module::read(Loc loc) | |
351 { | |
352 //printf("Module::read('%s') file '%s'\n", toChars(), srcfile->toChars()); | |
353 if (srcfile->read()) | |
354 { error(loc, "cannot read file '%s'", srcfile->toChars()); | |
355 fatal(); | |
356 } | |
357 } | |
358 | |
359 inline unsigned readwordLE(unsigned short *p) | |
360 { | |
361 #if __I86__ | |
362 return *p; | |
363 #else | |
364 return (((unsigned char *)p)[1] << 8) | ((unsigned char *)p)[0]; | |
365 #endif | |
366 } | |
367 | |
368 inline unsigned readwordBE(unsigned short *p) | |
369 { | |
370 return (((unsigned char *)p)[0] << 8) | ((unsigned char *)p)[1]; | |
371 } | |
372 | |
373 inline unsigned readlongLE(unsigned *p) | |
374 { | |
375 #if __I86__ | |
376 return *p; | |
377 #else | |
378 return ((unsigned char *)p)[0] | | |
379 (((unsigned char *)p)[1] << 8) | | |
380 (((unsigned char *)p)[2] << 16) | | |
381 (((unsigned char *)p)[3] << 24); | |
382 #endif | |
383 } | |
384 | |
385 inline unsigned readlongBE(unsigned *p) | |
386 { | |
387 return ((unsigned char *)p)[3] | | |
388 (((unsigned char *)p)[2] << 8) | | |
389 (((unsigned char *)p)[1] << 16) | | |
390 (((unsigned char *)p)[0] << 24); | |
391 } | |
392 | |
393 #if IN_GCC | |
394 void Module::parse(bool dump_source) | |
395 #else | |
396 void Module::parse() | |
397 #endif | |
398 { char *srcname; | |
399 unsigned char *buf; | |
400 unsigned buflen; | |
401 unsigned le; | |
402 unsigned bom; | |
403 | |
404 //printf("Module::parse()\n"); | |
405 | |
406 srcname = srcfile->name->toChars(); | |
407 //printf("Module::parse(srcname = '%s')\n", srcname); | |
408 | |
409 buf = srcfile->buffer; | |
410 buflen = srcfile->len; | |
411 | |
412 if (buflen >= 2) | |
413 { | |
414 /* Convert all non-UTF-8 formats to UTF-8. | |
415 * BOM : http://www.unicode.org/faq/utf_bom.html | |
416 * 00 00 FE FF UTF-32BE, big-endian | |
417 * FF FE 00 00 UTF-32LE, little-endian | |
418 * FE FF UTF-16BE, big-endian | |
419 * FF FE UTF-16LE, little-endian | |
420 * EF BB BF UTF-8 | |
421 */ | |
422 | |
423 bom = 1; // assume there's a BOM | |
424 if (buf[0] == 0xFF && buf[1] == 0xFE) | |
425 { | |
426 if (buflen >= 4 && buf[2] == 0 && buf[3] == 0) | |
427 { // UTF-32LE | |
428 le = 1; | |
429 | |
430 Lutf32: | |
431 OutBuffer dbuf; | |
432 unsigned *pu = (unsigned *)(buf); | |
433 unsigned *pumax = &pu[buflen / 4]; | |
434 | |
435 if (buflen & 3) | |
436 { error("odd length of UTF-32 char source %u", buflen); | |
437 fatal(); | |
438 } | |
439 | |
440 dbuf.reserve(buflen / 4); | |
441 for (pu += bom; pu < pumax; pu++) | |
442 { unsigned u; | |
443 | |
444 u = le ? readlongLE(pu) : readlongBE(pu); | |
445 if (u & ~0x7F) | |
446 { | |
447 if (u > 0x10FFFF) | |
448 { error("UTF-32 value %08x greater than 0x10FFFF", u); | |
449 fatal(); | |
450 } | |
451 dbuf.writeUTF8(u); | |
452 } | |
453 else | |
454 dbuf.writeByte(u); | |
455 } | |
456 dbuf.writeByte(0); // add 0 as sentinel for scanner | |
457 buflen = dbuf.offset - 1; // don't include sentinel in count | |
458 buf = (unsigned char *) dbuf.extractData(); | |
459 } | |
460 else | |
461 { // UTF-16LE (X86) | |
462 // Convert it to UTF-8 | |
463 le = 1; | |
464 | |
465 Lutf16: | |
466 OutBuffer dbuf; | |
467 unsigned short *pu = (unsigned short *)(buf); | |
468 unsigned short *pumax = &pu[buflen / 2]; | |
469 | |
470 if (buflen & 1) | |
471 { error("odd length of UTF-16 char source %u", buflen); | |
472 fatal(); | |
473 } | |
474 | |
475 dbuf.reserve(buflen / 2); | |
476 for (pu += bom; pu < pumax; pu++) | |
477 { unsigned u; | |
478 | |
479 u = le ? readwordLE(pu) : readwordBE(pu); | |
480 if (u & ~0x7F) | |
481 { if (u >= 0xD800 && u <= 0xDBFF) | |
482 { unsigned u2; | |
483 | |
484 if (++pu > pumax) | |
485 { error("surrogate UTF-16 high value %04x at EOF", u); | |
486 fatal(); | |
487 } | |
488 u2 = le ? readwordLE(pu) : readwordBE(pu); | |
489 if (u2 < 0xDC00 || u2 > 0xDFFF) | |
490 { error("surrogate UTF-16 low value %04x out of range", u2); | |
491 fatal(); | |
492 } | |
493 u = (u - 0xD7C0) << 10; | |
494 u |= (u2 - 0xDC00); | |
495 } | |
496 else if (u >= 0xDC00 && u <= 0xDFFF) | |
497 { error("unpaired surrogate UTF-16 value %04x", u); | |
498 fatal(); | |
499 } | |
500 else if (u == 0xFFFE || u == 0xFFFF) | |
501 { error("illegal UTF-16 value %04x", u); | |
502 fatal(); | |
503 } | |
504 dbuf.writeUTF8(u); | |
505 } | |
506 else | |
507 dbuf.writeByte(u); | |
508 } | |
509 dbuf.writeByte(0); // add 0 as sentinel for scanner | |
510 buflen = dbuf.offset - 1; // don't include sentinel in count | |
511 buf = (unsigned char *) dbuf.extractData(); | |
512 } | |
513 } | |
514 else if (buf[0] == 0xFE && buf[1] == 0xFF) | |
515 { // UTF-16BE | |
516 le = 0; | |
517 goto Lutf16; | |
518 } | |
519 else if (buflen >= 4 && buf[0] == 0 && buf[1] == 0 && buf[2] == 0xFE && buf[3] == 0xFF) | |
520 { // UTF-32BE | |
521 le = 0; | |
522 goto Lutf32; | |
523 } | |
524 else if (buflen >= 3 && buf[0] == 0xEF && buf[1] == 0xBB && buf[2] == 0xBF) | |
525 { // UTF-8 | |
526 | |
527 buf += 3; | |
528 buflen -= 3; | |
529 } | |
530 else | |
531 { | |
532 /* There is no BOM. Make use of Arcane Jill's insight that | |
533 * the first char of D source must be ASCII to | |
534 * figure out the encoding. | |
535 */ | |
536 | |
537 bom = 0; | |
538 if (buflen >= 4) | |
539 { if (buf[1] == 0 && buf[2] == 0 && buf[3] == 0) | |
540 { // UTF-32LE | |
541 le = 1; | |
542 goto Lutf32; | |
543 } | |
544 else if (buf[0] == 0 && buf[1] == 0 && buf[2] == 0) | |
545 { // UTF-32BE | |
546 le = 0; | |
547 goto Lutf32; | |
548 } | |
549 } | |
550 if (buflen >= 2) | |
551 { | |
552 if (buf[1] == 0) | |
553 { // UTF-16LE | |
554 le = 1; | |
555 goto Lutf16; | |
556 } | |
557 else if (buf[0] == 0) | |
558 { // UTF-16BE | |
559 le = 0; | |
560 goto Lutf16; | |
561 } | |
562 } | |
563 | |
564 // It's UTF-8 | |
565 if (buf[0] >= 0x80) | |
566 { error("source file must start with BOM or ASCII character, not \\x%02X", buf[0]); | |
567 fatal(); | |
568 } | |
569 } | |
570 } | |
571 | |
572 #ifdef IN_GCC | |
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573 // dump utf-8 encoded source |
336 | 574 if (dump_source) |
575 { // %% srcname could contain a path ... | |
576 d_gcc_dump_source(srcname, "utf-8", buf, buflen); | |
577 } | |
578 #endif | |
579 | |
580 /* If it starts with the string "Ddoc", then it's a documentation | |
581 * source file. | |
582 */ | |
583 if (buflen >= 4 && memcmp(buf, "Ddoc", 4) == 0) | |
584 { | |
585 comment = buf + 4; | |
586 isDocFile = 1; | |
587 return; | |
588 } | |
589 if (isHtml) | |
590 { | |
591 OutBuffer *dbuf = new OutBuffer(); | |
592 Html h(srcname, buf, buflen); | |
593 h.extractCode(dbuf); | |
594 buf = dbuf->data; | |
595 buflen = dbuf->offset; | |
596 #ifdef IN_GCC | |
597 // dump extracted source | |
598 if (dump_source) | |
599 d_gcc_dump_source(srcname, "d.utf-8", buf, buflen); | |
600 #endif | |
601 } | |
602 Parser p(this, buf, buflen, docfile != NULL); | |
603 p.nextToken(); | |
604 members = p.parseModule(); | |
605 md = p.md; | |
606 numlines = p.loc.linnum; | |
607 | |
608 DsymbolTable *dst; | |
609 | |
610 if (md) | |
611 { this->ident = md->id; | |
612 dst = Package::resolve(md->packages, &this->parent, NULL); | |
613 } | |
614 else | |
615 { | |
616 dst = modules; | |
617 | |
618 /* Check to see if module name is a valid identifier | |
619 */ | |
620 if (!Lexer::isValidIdentifier(this->ident->toChars())) | |
621 error("has non-identifier characters in filename, use module declaration instead"); | |
622 } | |
623 | |
624 // Update global list of modules | |
625 if (!dst->insert(this)) | |
626 { | |
627 if (md) | |
628 error(loc, "is in multiple packages %s", md->toChars()); | |
629 else | |
630 error(loc, "is in multiple defined"); | |
631 } | |
632 else | |
633 { | |
634 amodules.push(this); | |
635 } | |
636 } | |
637 | |
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638 void Module::semantic(Scope* unused_sc) |
336 | 639 { int i; |
640 | |
641 if (semanticstarted) | |
642 return; | |
643 | |
644 //printf("+Module::semantic(this = %p, '%s'): parent = %p\n", this, toChars(), parent); | |
645 semanticstarted = 1; | |
646 | |
647 // Note that modules get their own scope, from scratch. | |
648 // This is so regardless of where in the syntax a module | |
649 // gets imported, it is unaffected by context. | |
650 Scope *sc = Scope::createGlobal(this); // create root scope | |
651 | |
652 //printf("Module = %p, linkage = %d\n", sc->scopesym, sc->linkage); | |
653 | |
654 // Add import of "object" if this module isn't "object" | |
655 if (ident != Id::object) | |
656 { | |
657 Import *im = new Import(0, NULL, Id::object, NULL, 0); | |
658 members->shift(im); | |
659 } | |
660 | |
661 // Add all symbols into module's symbol table | |
662 symtab = new DsymbolTable(); | |
663 for (i = 0; i < members->dim; i++) | |
664 { Dsymbol *s; | |
665 | |
666 s = (Dsymbol *)members->data[i]; | |
667 s->addMember(NULL, sc->scopesym, 1); | |
668 } | |
669 | |
670 // Pass 1 semantic routines: do public side of the definition | |
671 for (i = 0; i < members->dim; i++) | |
672 { Dsymbol *s; | |
673 | |
674 s = (Dsymbol *)members->data[i]; | |
675 //printf("\tModule('%s'): '%s'.semantic()\n", toChars(), s->toChars()); | |
676 s->semantic(sc); | |
677 runDeferredSemantic(); | |
678 } | |
679 | |
680 sc = sc->pop(); | |
681 sc->pop(); | |
682 semanticdone = semanticstarted; | |
683 //printf("-Module::semantic(this = %p, '%s'): parent = %p\n", this, toChars(), parent); | |
684 } | |
685 | |
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686 void Module::semantic2(Scope* unused_sc) |
336 | 687 { int i; |
688 | |
689 if (deferred.dim) | |
690 { | |
691 for (int i = 0; i < deferred.dim; i++) | |
692 { | |
693 Dsymbol *sd = (Dsymbol *)deferred.data[i]; | |
694 | |
695 sd->error("unable to resolve forward reference in definition"); | |
696 } | |
697 return; | |
698 } | |
699 //printf("Module::semantic2('%s'): parent = %p\n", toChars(), parent); | |
700 if (semanticstarted >= 2) | |
701 return; | |
702 assert(semanticstarted == 1); | |
703 semanticstarted = 2; | |
704 | |
705 // Note that modules get their own scope, from scratch. | |
706 // This is so regardless of where in the syntax a module | |
707 // gets imported, it is unaffected by context. | |
708 Scope *sc = Scope::createGlobal(this); // create root scope | |
709 //printf("Module = %p\n", sc.scopesym); | |
710 | |
711 // Pass 2 semantic routines: do initializers and function bodies | |
712 for (i = 0; i < members->dim; i++) | |
713 { Dsymbol *s; | |
714 | |
715 s = (Dsymbol *)members->data[i]; | |
716 s->semantic2(sc); | |
717 } | |
718 | |
719 sc = sc->pop(); | |
720 sc->pop(); | |
721 semanticdone = semanticstarted; | |
722 //printf("-Module::semantic2('%s'): parent = %p\n", toChars(), parent); | |
723 } | |
724 | |
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725 void Module::semantic3(Scope* unused_sc) |
336 | 726 { int i; |
727 | |
728 //printf("Module::semantic3('%s'): parent = %p\n", toChars(), parent); | |
729 if (semanticstarted >= 3) | |
730 return; | |
731 assert(semanticstarted == 2); | |
732 semanticstarted = 3; | |
733 | |
734 // Note that modules get their own scope, from scratch. | |
735 // This is so regardless of where in the syntax a module | |
736 // gets imported, it is unaffected by context. | |
737 Scope *sc = Scope::createGlobal(this); // create root scope | |
738 //printf("Module = %p\n", sc.scopesym); | |
739 | |
740 // Pass 3 semantic routines: do initializers and function bodies | |
741 for (i = 0; i < members->dim; i++) | |
742 { Dsymbol *s; | |
743 | |
744 s = (Dsymbol *)members->data[i]; | |
745 //printf("Module %s: %s.semantic3()\n", toChars(), s->toChars()); | |
746 s->semantic3(sc); | |
747 } | |
748 | |
749 sc = sc->pop(); | |
750 sc->pop(); | |
751 semanticdone = semanticstarted; | |
752 } | |
753 | |
754 void Module::inlineScan() | |
755 { int i; | |
756 | |
757 if (semanticstarted >= 4) | |
758 return; | |
759 assert(semanticstarted == 3); | |
760 semanticstarted = 4; | |
761 | |
762 // Note that modules get their own scope, from scratch. | |
763 // This is so regardless of where in the syntax a module | |
764 // gets imported, it is unaffected by context. | |
765 //printf("Module = %p\n", sc.scopesym); | |
766 | |
767 for (i = 0; i < members->dim; i++) | |
768 { Dsymbol *s; | |
769 | |
770 s = (Dsymbol *)members->data[i]; | |
771 //if (global.params.verbose) | |
772 //printf("inline scan symbol %s\n", s->toChars()); | |
773 | |
774 s->inlineScan(); | |
775 } | |
776 semanticdone = semanticstarted; | |
777 } | |
778 | |
779 /**************************************************** | |
780 */ | |
781 | |
580
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diff
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|
782 // is this used anywhere? |
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changeset
|
783 /* |
336 | 784 void Module::gensymfile() |
785 { | |
786 OutBuffer buf; | |
787 HdrGenState hgs; | |
788 | |
789 //printf("Module::gensymfile()\n"); | |
790 | |
791 buf.printf("// Sym file generated from '%s'", srcfile->toChars()); | |
792 buf.writenl(); | |
793 | |
794 for (int i = 0; i < members->dim; i++) | |
795 { Dsymbol *s = (Dsymbol *)members->data[i]; | |
796 | |
797 s->toCBuffer(&buf, &hgs); | |
798 } | |
799 | |
800 // Transfer image to file | |
801 symfile->setbuffer(buf.data, buf.offset); | |
802 buf.data = NULL; | |
803 | |
804 symfile->writev(); | |
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diff
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805 }*/ |
336 | 806 |
807 /********************************** | |
808 * Determine if we need to generate an instance of ModuleInfo | |
809 * for this Module. | |
810 */ | |
811 | |
812 int Module::needModuleInfo() | |
813 { | |
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Removed unimplemented switches.
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parents:
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diff
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|
814 return needmoduleinfo; |
336 | 815 } |
816 | |
817 Dsymbol *Module::search(Loc loc, Identifier *ident, int flags) | |
818 { | |
819 /* Since modules can be circularly referenced, | |
820 * need to stop infinite recursive searches. | |
821 */ | |
822 | |
823 //printf("%s Module::search('%s', flags = %d) insearch = %d\n", toChars(), ident->toChars(), flags, insearch); | |
824 Dsymbol *s; | |
825 if (insearch) | |
826 s = NULL; | |
827 else if (searchCacheIdent == ident && searchCacheFlags == flags) | |
828 s = searchCacheSymbol; | |
829 else | |
830 { | |
831 insearch = 1; | |
832 s = ScopeDsymbol::search(loc, ident, flags); | |
833 insearch = 0; | |
834 | |
835 searchCacheIdent = ident; | |
836 searchCacheSymbol = s; | |
837 searchCacheFlags = flags; | |
838 } | |
839 return s; | |
840 } | |
841 | |
842 /******************************************* | |
843 * Can't run semantic on s now, try again later. | |
844 */ | |
845 | |
846 void Module::addDeferredSemantic(Dsymbol *s) | |
847 { | |
848 // Don't add it if it is already there | |
849 for (int i = 0; i < deferred.dim; i++) | |
850 { | |
851 Dsymbol *sd = (Dsymbol *)deferred.data[i]; | |
852 | |
853 if (sd == s) | |
854 return; | |
855 } | |
856 | |
857 //printf("Module::addDeferredSemantic('%s')\n", s->toChars()); | |
858 deferred.push(s); | |
859 } | |
860 | |
861 | |
862 /****************************************** | |
863 * Run semantic() on deferred symbols. | |
864 */ | |
865 | |
866 void Module::runDeferredSemantic() | |
867 { | |
868 size_t len; | |
869 | |
870 static int nested; | |
871 if (nested) | |
872 return; | |
873 //if (deferred.dim) printf("+Module::runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim); | |
874 nested++; | |
875 | |
876 do | |
877 { | |
878 dprogress = 0; | |
879 len = deferred.dim; | |
880 if (!len) | |
881 break; | |
882 | |
883 Dsymbol **todo; | |
884 Dsymbol *tmp; | |
885 if (len == 1) | |
886 { | |
887 todo = &tmp; | |
888 } | |
889 else | |
890 { | |
891 todo = (Dsymbol **)alloca(len * sizeof(Dsymbol *)); | |
892 assert(todo); | |
893 } | |
894 memcpy(todo, deferred.data, len * sizeof(Dsymbol *)); | |
895 deferred.setDim(0); | |
896 | |
897 for (int i = 0; i < len; i++) | |
898 { | |
899 Dsymbol *s = todo[i]; | |
900 | |
901 s->semantic(NULL); | |
902 //printf("deferred: %s, parent = %s\n", s->toChars(), s->parent->toChars()); | |
903 } | |
904 //printf("\tdeferred.dim = %d, len = %d, dprogress = %d\n", deferred.dim, len, dprogress); | |
905 } while (deferred.dim < len || dprogress); // while making progress | |
906 nested--; | |
907 //printf("-Module::runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim); | |
908 } | |
909 | |
875
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diff
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|
910 /************************************ |
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911 * Recursively look at every module this module imports, |
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Merged DMD 1.038
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|
912 * return TRUE if it imports m. |
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diff
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|
913 * Can be used to detect circular imports. |
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Merged DMD 1.038
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diff
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|
914 */ |
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Merged DMD 1.038
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diff
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|
915 |
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diff
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|
916 int Module::imports(Module *m) |
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Merged DMD 1.038
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diff
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|
917 { |
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diff
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|
918 //printf("%s Module::imports(%s)\n", toChars(), m->toChars()); |
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Merged DMD 1.038
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diff
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|
919 int aimports_dim = aimports.dim; |
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diff
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|
920 #if 0 |
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diff
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|
921 for (int i = 0; i < aimports.dim; i++) |
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Merged DMD 1.038
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diff
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|
922 { Module *mi = (Module *)aimports.data[i]; |
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|
923 printf("\t[%d] %s\n", i, mi->toChars()); |
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|
924 } |
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diff
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|
925 #endif |
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diff
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|
926 for (int i = 0; i < aimports.dim; i++) |
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|
927 { Module *mi = (Module *)aimports.data[i]; |
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|
928 if (mi == m) |
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diff
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|
929 return TRUE; |
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diff
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|
930 if (!mi->insearch) |
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diff
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|
931 { |
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diff
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|
932 mi->insearch = 1; |
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|
933 int r = mi->imports(m); |
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diff
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|
934 if (r) |
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diff
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|
935 return r; |
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diff
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|
936 } |
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diff
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|
937 } |
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diff
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|
938 return FALSE; |
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diff
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|
939 } |
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|
940 |
1103
b30fe7e1dbb9
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|
941 /************************************* |
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942 * Return !=0 if module imports itself. |
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|
943 */ |
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|
944 |
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diff
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|
945 int Module::selfImports() |
b30fe7e1dbb9
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|
946 { |
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|
947 //printf("Module::selfImports() %s\n", toChars()); |
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|
948 if (!selfimports) |
b30fe7e1dbb9
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|
949 { |
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950 for (int i = 0; i < amodules.dim; i++) |
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|
951 { Module *mi = (Module *)amodules.data[i]; |
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|
952 //printf("\t[%d] %s\n", i, mi->toChars()); |
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|
953 mi->insearch = 0; |
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|
954 } |
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|
955 |
b30fe7e1dbb9
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|
956 selfimports = imports(this) + 1; |
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|
957 |
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|
958 for (int i = 0; i < amodules.dim; i++) |
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|
959 { Module *mi = (Module *)amodules.data[i]; |
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|
960 //printf("\t[%d] %s\n", i, mi->toChars()); |
b30fe7e1dbb9
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|
961 mi->insearch = 0; |
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diff
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|
962 } |
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diff
changeset
|
963 } |
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diff
changeset
|
964 return selfimports - 1; |
b30fe7e1dbb9
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986
diff
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|
965 } |
b30fe7e1dbb9
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diff
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|
966 |
b30fe7e1dbb9
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diff
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|
967 |
336 | 968 /* =========================== ModuleDeclaration ===================== */ |
969 | |
970 ModuleDeclaration::ModuleDeclaration(Array *packages, Identifier *id) | |
971 { | |
972 this->packages = packages; | |
973 this->id = id; | |
974 } | |
975 | |
976 char *ModuleDeclaration::toChars() | |
977 { | |
978 OutBuffer buf; | |
979 int i; | |
980 | |
981 if (packages && packages->dim) | |
982 { | |
983 for (i = 0; i < packages->dim; i++) | |
984 { Identifier *pid = (Identifier *)packages->data[i]; | |
985 | |
986 buf.writestring(pid->toChars()); | |
987 buf.writeByte('.'); | |
988 } | |
989 } | |
990 buf.writestring(id->toChars()); | |
991 buf.writeByte(0); | |
992 return (char *)buf.extractData(); | |
993 } | |
994 | |
995 /* =========================== Package ===================== */ | |
996 | |
997 Package::Package(Identifier *ident) | |
998 : ScopeDsymbol(ident) | |
999 { | |
1000 } | |
1001 | |
1002 | |
1003 const char *Package::kind() | |
1004 { | |
1005 return "package"; | |
1006 } | |
1007 | |
1008 | |
1009 DsymbolTable *Package::resolve(Array *packages, Dsymbol **pparent, Package **ppkg) | |
1010 { | |
1011 DsymbolTable *dst = Module::modules; | |
1012 Dsymbol *parent = NULL; | |
1013 | |
1014 //printf("Package::resolve()\n"); | |
1015 if (ppkg) | |
1016 *ppkg = NULL; | |
1017 | |
1018 if (packages) | |
1019 { int i; | |
1020 | |
1021 for (i = 0; i < packages->dim; i++) | |
1022 { Identifier *pid = (Identifier *)packages->data[i]; | |
1023 Dsymbol *p; | |
1024 | |
1025 p = dst->lookup(pid); | |
1026 if (!p) | |
1027 { | |
1028 p = new Package(pid); | |
1029 dst->insert(p); | |
1030 p->parent = parent; | |
1031 ((ScopeDsymbol *)p)->symtab = new DsymbolTable(); | |
1032 } | |
1033 else | |
1034 { | |
1035 assert(p->isPackage()); | |
1036 if (p->isModule()) | |
1037 { p->error("module and package have the same name"); | |
1038 fatal(); | |
1039 break; | |
1040 } | |
1041 } | |
1042 parent = p; | |
1043 dst = ((Package *)p)->symtab; | |
1044 if (ppkg && !*ppkg) | |
1045 *ppkg = (Package *)p; | |
1046 } | |
1047 if (pparent) | |
1048 { | |
1049 *pparent = parent; | |
1050 } | |
1051 } | |
1052 return dst; | |
1053 } |