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view dmd2/import.c @ 1650:40bd4a0d4870
Update to work with LLVM 2.7.
Removed use of dyn_cast, llvm no compiles
without exceptions and rtti by
default. We do need exceptions for the libconfig stuff, but rtti isn't
necessary (anymore).
Debug info needs to be rewritten, as in LLVM 2.7 the format has
completely changed. To have something to look at while rewriting, the
old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means
that you have to define this to compile at the moment.
Updated tango 0.99.9 patch to include updated EH runtime code, which is
needed for LLVM 2.7 as well.
author | Tomas Lindquist Olsen |
---|---|
date | Wed, 19 May 2010 12:42:32 +0200 |
parents | 54b3c1394d62 |
children |
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// Compiler implementation of the D programming language // Copyright (c) 1999-2009 by Digital Mars // All Rights Reserved // written by Walter Bright // http://www.digitalmars.com // License for redistribution is by either the Artistic License // in artistic.txt, or the GNU General Public License in gnu.txt. // See the included readme.txt for details. #include <stdio.h> #include <assert.h> #include "root.h" #include "dsymbol.h" #include "import.h" #include "identifier.h" #include "module.h" #include "scope.h" #include "hdrgen.h" #include "mtype.h" #include "declaration.h" #include "id.h" #include "attrib.h" /********************************* Import ****************************/ Import::Import(Loc loc, Array *packages, Identifier *id, Identifier *aliasId, int isstatic) : Dsymbol(id) { assert(id); this->loc = loc; this->packages = packages; this->id = id; this->aliasId = aliasId; this->isstatic = isstatic; #if IN_LLVM protection = PROTundefined; #endif pkg = NULL; mod = NULL; if (aliasId) this->ident = aliasId; // Kludge to change Import identifier to first package else if (packages && packages->dim) this->ident = (Identifier *)packages->data[0]; } void Import::addAlias(Identifier *name, Identifier *alias) { if (isstatic) error("cannot have an import bind list"); if (!aliasId) this->ident = NULL; // make it an anonymous import names.push(name); aliases.push(alias); } const char *Import::kind() { return isstatic ? (char *)"static import" : (char *)"import"; } #if IN_LLVM enum PROT Import::prot() { return protection; } #endif Dsymbol *Import::syntaxCopy(Dsymbol *s) { assert(!s); Import *si; si = new Import(loc, packages, id, aliasId, isstatic); for (size_t i = 0; i < names.dim; i++) { si->addAlias((Identifier *)names.data[i], (Identifier *)aliases.data[i]); } return si; } void Import::load(Scope *sc) { DsymbolTable *dst; Dsymbol *s; //printf("Import::load('%s')\n", toChars()); // See if existing module dst = Package::resolve(packages, NULL, &pkg); s = dst->lookup(id); if (s) { #if TARGET_NET mod = (Module *)s; #else if (s->isModule()) mod = (Module *)s; else error("package and module have the same name"); #endif } if (!mod) { // Load module mod = Module::load(loc, packages, id); dst->insert(id, mod); // id may be different from mod->ident, // if so then insert alias if (!mod->importedFrom) mod->importedFrom = sc ? sc->module->importedFrom : Module::rootModule; } if (!pkg) pkg = mod; //printf("-Import::load('%s'), pkg = %p\n", toChars(), pkg); } void escapePath(OutBuffer *buf, const char *fname) { while (1) { switch (*fname) { case 0: return; case '(': case ')': case '\\': buf->writebyte('\\'); default: buf->writebyte(*fname); break; } fname++; } } void Import::semantic(Scope *sc) { //printf("Import::semantic('%s')\n", toChars()); load(sc); if (mod) { #if 0 if (mod->loc.linnum != 0) { /* If the line number is not 0, then this is not * a 'root' module, i.e. it was not specified on the command line. */ mod->importedFrom = sc->module->importedFrom; assert(mod->importedFrom); } #endif // Modules need a list of each imported module //printf("%s imports %s\n", sc->module->toChars(), mod->toChars()); sc->module->aimports.push(mod); if (!isstatic && !aliasId && !names.dim) { /* Default to private importing */ enum PROT prot = sc->protection; if (!sc->explicitProtection) prot = PROTprivate; sc->scopesym->importScope(mod, prot); } mod->semantic(); if (mod->needmoduleinfo) sc->module->needmoduleinfo = 1; sc = sc->push(mod); for (size_t i = 0; i < aliasdecls.dim; i++) { AliasDeclaration *ad = (AliasDeclaration *)aliasdecls.data[i]; //printf("\tImport alias semantic('%s')\n", s->toChars()); if (!mod->search(loc, (Identifier *)names.data[i], 0)) error("%s not found", ((Identifier *)names.data[i])->toChars()); ad->importprot = protection; ad->semantic(sc); } sc = sc->pop(); } if (global.params.moduleDeps != NULL) { /* The grammar of the file is: * ImportDeclaration * ::= BasicImportDeclaration [ " : " ImportBindList ] [ " -> " * ModuleAliasIdentifier ] "\n" * * BasicImportDeclaration * ::= ModuleFullyQualifiedName " (" FilePath ") : " Protection * " [ " static" ] : " ModuleFullyQualifiedName " (" FilePath ")" * * FilePath * - any string with '(', ')' and '\' escaped with the '\' character */ OutBuffer *ob = global.params.moduleDeps; ob->writestring(sc->module->toPrettyChars()); ob->writestring(" ("); escapePath(ob, sc->module->srcfile->toChars()); ob->writestring(") : "); ProtDeclaration::protectionToCBuffer(ob, sc->protection); if (isstatic) StorageClassDeclaration::stcToCBuffer(ob, STCstatic); ob->writestring(": "); if (packages) { for (size_t i = 0; i < packages->dim; i++) { Identifier *pid = (Identifier *)packages->data[i]; ob->printf("%s.", pid->toChars()); } } ob->writestring(id->toChars()); ob->writestring(" ("); if (mod) escapePath(ob, mod->srcfile->toChars()); else ob->writestring("???"); ob->writebyte(')'); for (size_t i = 0; i < names.dim; i++) { if (i == 0) ob->writebyte(':'); else ob->writebyte(','); Identifier *name = (Identifier *)names.data[i]; Identifier *alias = (Identifier *)aliases.data[i]; if (!alias) { ob->printf("%s", name->toChars()); alias = name; } else ob->printf("%s=%s", alias->toChars(), name->toChars()); } if (aliasId) ob->printf(" -> %s", aliasId->toChars()); ob->writenl(); } //printf("-Import::semantic('%s'), pkg = %p\n", toChars(), pkg); } void Import::semantic2(Scope *sc) { //printf("Import::semantic2('%s')\n", toChars()); mod->semantic2(); if (mod->needmoduleinfo) sc->module->needmoduleinfo = 1; } Dsymbol *Import::toAlias() { if (aliasId) return mod; return this; } /***************************** * Add import to sd's symbol table. */ int Import::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) { int result = 0; if (names.dim == 0) return Dsymbol::addMember(sc, sd, memnum); if (aliasId) result = Dsymbol::addMember(sc, sd, memnum); /* Instead of adding the import to sd's symbol table, * add each of the alias=name pairs */ for (size_t i = 0; i < names.dim; i++) { Identifier *name = (Identifier *)names.data[i]; Identifier *alias = (Identifier *)aliases.data[i]; if (!alias) alias = name; TypeIdentifier *tname = new TypeIdentifier(loc, name); AliasDeclaration *ad = new AliasDeclaration(loc, alias, tname); result |= ad->addMember(sc, sd, memnum); aliasdecls.push(ad); } return result; } Dsymbol *Import::search(Loc loc, Identifier *ident, int flags) { //printf("%s.Import::search(ident = '%s', flags = x%x)\n", toChars(), ident->toChars(), flags); if (!pkg) { load(NULL); mod->semantic(); } // Forward it to the package/module return pkg->search(loc, ident, flags); } int Import::overloadInsert(Dsymbol *s) { // Allow multiple imports of the same name return s->isImport() != NULL; } void Import::toCBuffer(OutBuffer *buf, HdrGenState *hgs) { if (hgs->hdrgen && id == Id::object) return; // object is imported by default if (isstatic) buf->writestring("static "); buf->writestring("import "); if (aliasId) { buf->printf("%s = ", aliasId->toChars()); } if (packages && packages->dim) { for (size_t i = 0; i < packages->dim; i++) { Identifier *pid = (Identifier *)packages->data[i]; buf->printf("%s.", pid->toChars()); } } buf->printf("%s;", id->toChars()); buf->writenl(); }