Mercurial > projects > ldc
view dmd/staticassert.c @ 1404:11b122f92136
Now that templates instantiations are no longer emitted for all modules that
even blink at them they seem to break due to being linkonce (if compiled with
any optimization level > 0), so let's give them weak linkage instead.
The difference is that unreferenced linkonce symbols can be deleted, while
weak symbols need to be preserved.
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Thu, 21 May 2009 15:23:28 +0200 |
parents | 8026319762be |
children | 1b24e9c7cc26 |
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// Copyright (c) 1999-2007 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 <string.h> #include <assert.h> #include "dsymbol.h" #include "staticassert.h" #include "expression.h" #include "id.h" #include "hdrgen.h" #include "scope.h" #include "template.h" /********************************* AttribDeclaration ****************************/ StaticAssert::StaticAssert(Loc loc, Expression *exp, Expression *msg) : Dsymbol(Id::empty) { this->loc = loc; this->exp = exp; this->msg = msg; } Dsymbol *StaticAssert::syntaxCopy(Dsymbol *s) { StaticAssert *sa; assert(!s); sa = new StaticAssert(loc, exp->syntaxCopy(), msg ? msg->syntaxCopy() : NULL); return sa; } int StaticAssert::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) { return 0; // we didn't add anything } void StaticAssert::semantic(Scope *sc) { } #include "scope.h" #include "template.h" #include "declaration.h" void StaticAssert::semantic2(Scope *sc) { Expression *e; //printf("StaticAssert::semantic2() %s\n", toChars()); e = exp->semantic(sc); e = e->optimize(WANTvalue | WANTinterpret); if (e->isBool(FALSE)) { if (msg) { HdrGenState hgs; OutBuffer buf; msg = msg->semantic(sc); msg = msg->optimize(WANTvalue | WANTinterpret); hgs.console = 1; msg->toCBuffer(&buf, &hgs); error("%s", buf.toChars()); } else error("(%s) is false", exp->toChars()); if(sc->tinst) sc->tinst->printInstantiationTrace(); if (!global.gag) { fatal(); } } else if (!e->isBool(TRUE)) { error("(%s) is not evaluatable at compile time", exp->toChars()); } } int StaticAssert::oneMember(Dsymbol **ps) { //printf("StaticAssert::oneMember())\n"); *ps = NULL; return TRUE; } void StaticAssert::inlineScan() { } void StaticAssert::toObjFile(int multiobj) { } const char *StaticAssert::kind() { return "static assert"; } void StaticAssert::toCBuffer(OutBuffer *buf, HdrGenState *hgs) { buf->writestring(kind()); buf->writeByte('('); exp->toCBuffer(buf, hgs); if (msg) { buf->writeByte(','); msg->toCBuffer(buf, hgs); } buf->writestring(");"); buf->writenl(); }