diff dmd2/attrib.c @ 758:f04dde6e882c

Added initial D2 support, D2 frontend and changes to codegen to make things compile.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 11 Nov 2008 01:38:48 +0100
parents
children 340acf1535d0
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmd2/attrib.c	Tue Nov 11 01:38:48 2008 +0100
@@ -0,0 +1,1473 @@
+
+// Compiler implementation of the D programming language
+// Copyright (c) 1999-2008 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 <stdlib.h>
+#include <assert.h>
+
+#if _WIN32 || IN_GCC || IN_LLVM
+#include "mem.h"
+#elif POSIX
+#include "../root/mem.h"
+#endif
+
+#include "init.h"
+#include "declaration.h"
+#include "attrib.h"
+#include "cond.h"
+#include "scope.h"
+#include "id.h"
+#include "expression.h"
+#include "dsymbol.h"
+#include "aggregate.h"
+#include "module.h"
+#include "parse.h"
+#include "template.h"
+
+#include "../gen/enums.h"
+#include "../gen/logger.h"
+
+extern void obj_includelib(const char *name);
+void obj_startaddress(Symbol *s);
+
+
+/********************************* AttribDeclaration ****************************/
+
+AttribDeclaration::AttribDeclaration(Array *decl)
+	: Dsymbol()
+{
+    this->decl = decl;
+}
+
+Array *AttribDeclaration::include(Scope *sc, ScopeDsymbol *sd)
+{
+    return decl;
+}
+
+int AttribDeclaration::addMember(Scope *sc, ScopeDsymbol *sd, int memnum)
+{
+    int m = 0;
+    Array *d = include(sc, sd);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    m |= s->addMember(sc, sd, m | memnum);
+	}
+    }
+    return m;
+}
+
+void AttribDeclaration::semantic(Scope *sc)
+{
+    Array *d = include(sc, NULL);
+
+    //printf("\tAttribDeclaration::semantic '%s', d = %p\n",toChars(), d);
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)d->data[i];
+
+	    s->semantic(sc);
+	}
+    }
+}
+
+void AttribDeclaration::semantic2(Scope *sc)
+{
+    Array *d = include(sc, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    s->semantic2(sc);
+	}
+    }
+}
+
+void AttribDeclaration::semantic3(Scope *sc)
+{
+    Array *d = include(sc, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    s->semantic3(sc);
+	}
+    }
+}
+
+void AttribDeclaration::inlineScan()
+{
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    //printf("AttribDeclaration::inlineScan %s\n", s->toChars());
+	    s->inlineScan();
+	}
+    }
+}
+
+void AttribDeclaration::addComment(unsigned char *comment)
+{
+    if (comment)
+    {
+	Array *d = include(NULL, NULL);
+
+	if (d)
+	{
+	    for (unsigned i = 0; i < d->dim; i++)
+	    {   Dsymbol *s = (Dsymbol *)d->data[i];
+		//printf("AttribDeclaration::addComment %s\n", s->toChars());
+		s->addComment(comment);
+	    }
+	}
+    }
+}
+
+void AttribDeclaration::emitComment(Scope *sc)
+{
+    //printf("AttribDeclaration::emitComment(sc = %p)\n", sc);
+
+    /* If generating doc comment, skip this because if we're inside
+     * a template, then include(NULL, NULL) will fail.
+     */
+//    if (sc->docbuf)
+//	return;
+
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    //printf("AttribDeclaration::emitComment %s\n", s->toChars());
+	    s->emitComment(sc);
+	}
+    }
+}
+
+void AttribDeclaration::toObjFile(int multiobj)
+{
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    s->toObjFile(multiobj);
+	}
+    }
+}
+
+int AttribDeclaration::cvMember(unsigned char *p)
+{
+    int nwritten = 0;
+    int n;
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    n = s->cvMember(p);
+	    if (p)
+		p += n;
+	    nwritten += n;
+	}
+    }
+    return nwritten;
+}
+
+int AttribDeclaration::hasPointers()
+{
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (size_t i = 0; i < d->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)d->data[i];
+	    if (s->hasPointers())
+		return 1;
+	}
+    }
+    return 0;
+}
+
+const char *AttribDeclaration::kind()
+{
+    return "attribute";
+}
+
+int AttribDeclaration::oneMember(Dsymbol **ps)
+{
+    Array *d = include(NULL, NULL);
+
+    return Dsymbol::oneMembers(d, ps);
+}
+
+void AttribDeclaration::checkCtorConstInit()
+{
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    s->checkCtorConstInit();
+	}
+    }
+}
+
+/****************************************
+ */
+
+void AttribDeclaration::addLocalClass(ClassDeclarations *aclasses)
+{
+    Array *d = include(NULL, NULL);
+
+    if (d)
+    {
+	for (unsigned i = 0; i < d->dim; i++)
+	{   Dsymbol *s = (Dsymbol *)d->data[i];
+	    s->addLocalClass(aclasses);
+	}
+    }
+}
+
+
+void AttribDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    if (decl)
+    {
+	buf->writenl();
+	buf->writeByte('{');
+	buf->writenl();
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    buf->writestring("    ");
+	    s->toCBuffer(buf, hgs);
+	}
+	buf->writeByte('}');
+    }
+    else
+	buf->writeByte(';');
+    buf->writenl();
+}
+
+/************************* StorageClassDeclaration ****************************/
+
+StorageClassDeclaration::StorageClassDeclaration(unsigned stc, Array *decl)
+	: AttribDeclaration(decl)
+{
+    this->stc = stc;
+}
+
+Dsymbol *StorageClassDeclaration::syntaxCopy(Dsymbol *s)
+{
+    StorageClassDeclaration *scd;
+
+    assert(!s);
+    scd = new StorageClassDeclaration(stc, Dsymbol::arraySyntaxCopy(decl));
+    return scd;
+}
+
+void StorageClassDeclaration::semantic(Scope *sc)
+{
+    if (decl)
+    {	unsigned stc_save = sc->stc;
+
+	/* These sets of storage classes are mutually exclusive,
+	 * so choose the innermost or most recent one.
+	 */
+	if (stc & (STCauto | STCscope | STCstatic | STCextern | STCmanifest))
+	    sc->stc &= ~(STCauto | STCscope | STCstatic | STCextern | STCmanifest);
+	if (stc & (STCauto | STCscope | STCstatic | STCtls | STCmanifest))
+	    sc->stc &= ~(STCauto | STCscope | STCstatic | STCtls | STCmanifest);
+	if (stc & (STCconst | STCinvariant | STCmanifest))
+	    sc->stc &= ~(STCconst | STCinvariant | STCmanifest);
+	sc->stc |= stc;
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    s->semantic(sc);
+	}
+	sc->stc = stc_save;
+    }
+    else
+	sc->stc = stc;
+}
+
+void StorageClassDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    struct SCstring
+    {
+	int stc;
+	enum TOK tok;
+    };
+
+    static SCstring table[] =
+    {
+	{ STCauto,         TOKauto },
+	{ STCscope,        TOKscope },
+	{ STCstatic,       TOKstatic },
+	{ STCextern,       TOKextern },
+	{ STCconst,        TOKconst },
+	{ STCinvariant,    TOKimmutable },
+	{ STCshared,       TOKshared },
+	{ STCfinal,        TOKfinal },
+	{ STCabstract,     TOKabstract },
+	{ STCsynchronized, TOKsynchronized },
+	{ STCdeprecated,   TOKdeprecated },
+	{ STCoverride,     TOKoverride },
+	{ STCnothrow,      TOKnothrow },
+	{ STCpure,         TOKpure },
+	{ STCref,          TOKref },
+	{ STCtls,          TOKtls },
+    };
+
+    int written = 0;
+    for (int i = 0; i < sizeof(table)/sizeof(table[0]); i++)
+    {
+	if (stc & table[i].stc)
+	{
+	    if (written)
+		buf->writeByte(' ');
+	    written = 1;
+	    buf->writestring(Token::toChars(table[i].tok));
+	}
+    }
+
+    AttribDeclaration::toCBuffer(buf, hgs);
+}
+
+/********************************* LinkDeclaration ****************************/
+
+LinkDeclaration::LinkDeclaration(enum LINK p, Array *decl)
+	: AttribDeclaration(decl)
+{
+    //printf("LinkDeclaration(linkage = %d, decl = %p)\n", p, decl);
+    linkage = p;
+}
+
+Dsymbol *LinkDeclaration::syntaxCopy(Dsymbol *s)
+{
+    LinkDeclaration *ld;
+
+    assert(!s);
+    ld = new LinkDeclaration(linkage, Dsymbol::arraySyntaxCopy(decl));
+    return ld;
+}
+
+void LinkDeclaration::semantic(Scope *sc)
+{
+    //printf("LinkDeclaration::semantic(linkage = %d, decl = %p)\n", linkage, decl);
+    if (decl)
+    {	enum LINK linkage_save = sc->linkage;
+
+	sc->linkage = linkage;
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    s->semantic(sc);
+	}
+	sc->linkage = linkage_save;
+    }
+    else
+    {
+	sc->linkage = linkage;
+    }
+}
+
+void LinkDeclaration::semantic3(Scope *sc)
+{
+    //printf("LinkDeclaration::semantic3(linkage = %d, decl = %p)\n", linkage, decl);
+    if (decl)
+    {	enum LINK linkage_save = sc->linkage;
+
+	sc->linkage = linkage;
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    s->semantic3(sc);
+	}
+	sc->linkage = linkage_save;
+    }
+    else
+    {
+	sc->linkage = linkage;
+    }
+}
+
+void LinkDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{   const char *p;
+
+    switch (linkage)
+    {
+	case LINKd:		p = "D";		break;
+	case LINKc:		p = "C";		break;
+	case LINKcpp:		p = "C++";		break;
+	case LINKwindows:	p = "Windows";		break;
+	case LINKpascal:	p = "Pascal";		break;
+
+    // LDC
+    case LINKintrinsic: p = "Intrinsic"; break;
+
+	default:
+	    assert(0);
+	    break;
+    }
+    buf->writestring("extern (");
+    buf->writestring(p);
+    buf->writestring(") ");
+    AttribDeclaration::toCBuffer(buf, hgs);
+}
+
+char *LinkDeclaration::toChars()
+{
+    return (char *)"extern ()";
+}
+
+/********************************* ProtDeclaration ****************************/
+
+ProtDeclaration::ProtDeclaration(enum PROT p, Array *decl)
+	: AttribDeclaration(decl)
+{
+    protection = p;
+    //printf("decl = %p\n", decl);
+}
+
+Dsymbol *ProtDeclaration::syntaxCopy(Dsymbol *s)
+{
+    ProtDeclaration *pd;
+
+    assert(!s);
+    pd = new ProtDeclaration(protection, Dsymbol::arraySyntaxCopy(decl));
+    return pd;
+}
+
+void ProtDeclaration::semantic(Scope *sc)
+{
+    if (decl)
+    {	enum PROT protection_save = sc->protection;
+	int explicitProtection_save = sc->explicitProtection;
+
+	sc->protection = protection;
+	sc->explicitProtection = 1;
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    s->semantic(sc);
+	}
+	sc->protection = protection_save;
+	sc->explicitProtection = explicitProtection_save;
+    }
+    else
+    {	sc->protection = protection;
+	sc->explicitProtection = 1;
+    }
+}
+
+void ProtDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{   const char *p;
+
+    switch (protection)
+    {
+	case PROTprivate:	p = "private";		break;
+	case PROTpackage:	p = "package";		break;
+	case PROTprotected:	p = "protected";	break;
+	case PROTpublic:	p = "public";		break;
+	case PROTexport:	p = "export";		break;
+	default:
+	    assert(0);
+	    break;
+    }
+    buf->writestring(p);
+    AttribDeclaration::toCBuffer(buf, hgs);
+}
+
+/********************************* AlignDeclaration ****************************/
+
+AlignDeclaration::AlignDeclaration(Loc loc, unsigned sa, Array *decl)
+	: AttribDeclaration(decl)
+{
+    this->loc = loc;
+    salign = sa;
+}
+
+Dsymbol *AlignDeclaration::syntaxCopy(Dsymbol *s)
+{
+    AlignDeclaration *ad;
+
+    assert(!s);
+    ad = new AlignDeclaration(loc, salign, Dsymbol::arraySyntaxCopy(decl));
+    return ad;
+}
+
+void AlignDeclaration::semantic(Scope *sc)
+{
+// LDC
+// we only support packed structs, as from the spec: align(1) struct Packed { ... }
+// other alignments are simply ignored. my tests show this is what llvm-gcc does too ...
+
+    //printf("\tAlignDeclaration::semantic '%s'\n",toChars());
+    if (decl)
+    {	unsigned salign_save = sc->structalign;
+
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+        if (s->isStructDeclaration() && salign == 1)
+        {
+            sc->structalign = salign;
+            s->semantic(sc);
+            sc->structalign = salign_save;
+        }
+        else
+        {
+            s->semantic(sc);
+        }
+	}
+	sc->structalign = salign_save;
+    }
+    else
+    assert(0 && "what kind of align use triggers this?");
+}
+
+
+void AlignDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    buf->printf("align (%d)", salign);
+    AttribDeclaration::toCBuffer(buf, hgs);
+}
+
+/********************************* AnonDeclaration ****************************/
+
+AnonDeclaration::AnonDeclaration(Loc loc, int isunion, Array *decl)
+	: AttribDeclaration(decl)
+{
+    this->loc = loc;
+    this->isunion = isunion;
+    this->scope = NULL;
+    this->sem = 0;
+}
+
+Dsymbol *AnonDeclaration::syntaxCopy(Dsymbol *s)
+{
+    AnonDeclaration *ad;
+
+    assert(!s);
+    ad = new AnonDeclaration(loc, isunion, Dsymbol::arraySyntaxCopy(decl));
+    return ad;
+}
+
+void AnonDeclaration::semantic(Scope *sc)
+{
+    //printf("\tAnonDeclaration::semantic %s %p\n", isunion ? "union" : "struct", this);
+
+    Scope *scx = NULL;
+    if (scope)
+    {   sc = scope;
+	scx = scope;
+	scope = NULL;
+    }
+
+    assert(sc->parent);
+
+    Dsymbol *parent = sc->parent->pastMixin();
+    AggregateDeclaration *ad = parent->isAggregateDeclaration();
+
+    if (!ad || (!ad->isStructDeclaration() && !ad->isClassDeclaration()))
+    {
+	error("can only be a part of an aggregate");
+	return;
+    }
+
+    if (decl)
+    {
+	AnonymousAggregateDeclaration aad;
+	int adisunion;
+
+	if (sc->anonAgg)
+	{   ad = sc->anonAgg;
+	    adisunion = sc->inunion;
+	}
+	else
+	    adisunion = ad->isUnionDeclaration() != NULL;
+
+//	printf("\tsc->anonAgg = %p\n", sc->anonAgg);
+//	printf("\tad  = %p\n", ad);
+//	printf("\taad = %p\n", &aad);
+
+	sc = sc->push();
+	sc->anonAgg = &aad;
+	sc->stc &= ~(STCauto | STCscope | STCstatic | STCtls);
+	sc->inunion = isunion;
+	sc->offset = 0;
+	sc->flags = 0;
+	aad.structalign = sc->structalign;
+	aad.parent = ad;
+
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    s->semantic(sc);
+	    if (isunion)
+		sc->offset = 0;
+	    if (aad.sizeok == 2)
+	    {
+		break;
+	    }
+	}
+	sc = sc->pop();
+
+	// If failed due to forward references, unwind and try again later
+	if (aad.sizeok == 2)
+	{
+	    ad->sizeok = 2;
+	    //printf("\tsetting ad->sizeok %p to 2\n", ad);
+	    if (!sc->anonAgg)
+	    {
+		scope = scx ? scx : new Scope(*sc);
+		scope->setNoFree();
+		scope->module->addDeferredSemantic(this);
+	    }
+	    //printf("\tforward reference %p\n", this);
+	    return;
+	}
+	if (sem == 0)
+	{   Module::dprogress++;
+	    sem = 1;
+	    //printf("\tcompleted %p\n", this);
+	}
+	else
+	    ;//printf("\talready completed %p\n", this);
+
+	// 0 sized structs are set to 1 byte
+	if (aad.structsize == 0)
+	{
+	    aad.structsize = 1;
+	    aad.alignsize = 1;
+	}
+
+	// Align size of anonymous aggregate
+//printf("aad.structalign = %d, aad.alignsize = %d, sc->offset = %d\n", aad.structalign, aad.alignsize, sc->offset);
+	ad->alignmember(aad.structalign, aad.alignsize, &sc->offset);
+	//ad->structsize = sc->offset;
+//printf("sc->offset = %d\n", sc->offset);
+
+	// Add members of aad to ad
+	//printf("\tadding members of aad (%p) to '%s'\n", &aad, ad->toChars());
+	for (unsigned i = 0; i < aad.fields.dim; i++)
+	{
+	    VarDeclaration *v = (VarDeclaration *)aad.fields.data[i];
+
+	    v->offset += sc->offset;
+
+        // LDC
+        if (!v->anonDecl)
+            v->anonDecl = this;
+
+	    ad->fields.push(v);
+	}
+
+	// Add size of aad to ad
+	if (adisunion)
+	{
+	    if (aad.structsize > ad->structsize)
+		ad->structsize = aad.structsize;
+	    sc->offset = 0;
+	}
+	else
+	{
+	    ad->structsize = sc->offset + aad.structsize;
+	    sc->offset = ad->structsize;
+	}
+
+	if (ad->alignsize < aad.alignsize)
+	    ad->alignsize = aad.alignsize;
+    }
+}
+
+
+void AnonDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    buf->printf(isunion ? "union" : "struct");
+    buf->writestring("\n{\n");
+    if (decl)
+    {
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    //buf->writestring("    ");
+	    s->toCBuffer(buf, hgs);
+	}
+    }
+    buf->writestring("}\n");
+}
+
+const char *AnonDeclaration::kind()
+{
+    return (isunion ? "anonymous union" : "anonymous struct");
+}
+
+/********************************* PragmaDeclaration ****************************/
+
+static bool parseStringExp(Expression* e, std::string& res)
+{
+    StringExp *s = NULL;
+
+    e = e->optimize(WANTvalue);
+    if (e->op == TOKstring && (s = (StringExp *)e))
+    {
+        char* str = (char*)s->string;
+        res = str;
+        return true;
+    }
+    return false;
+}
+
+PragmaDeclaration::PragmaDeclaration(Loc loc, Identifier *ident, Expressions *args, Array *decl)
+	: AttribDeclaration(decl)
+{
+    this->loc = loc;
+    this->ident = ident;
+    this->args = args;
+}
+
+Dsymbol *PragmaDeclaration::syntaxCopy(Dsymbol *s)
+{
+    PragmaDeclaration *pd;
+
+    assert(!s);
+    pd = new PragmaDeclaration(loc, ident,
+	Expression::arraySyntaxCopy(args), Dsymbol::arraySyntaxCopy(decl));
+    return pd;
+}
+
+void PragmaDeclaration::semantic(Scope *sc)
+{   // Should be merged with PragmaStatement
+
+#if IN_LLVM
+    int llvm_internal = 0;
+    std::string arg1str;
+
+#endif
+
+    //printf("\tPragmaDeclaration::semantic '%s'\n",toChars());
+    if (ident == Id::msg)
+    {
+	if (args)
+	{
+	    for (size_t i = 0; i < args->dim; i++)
+	    {
+		Expression *e = (Expression *)args->data[i];
+
+		e = e->semantic(sc);
+		e = e->optimize(WANTvalue | WANTinterpret);
+		if (e->op == TOKstring)
+		{
+		    StringExp *se = (StringExp *)e;
+		    fprintf(stdmsg, "%.*s", (int)se->len, se->string);
+		}
+		else
+		    error("string expected for message, not '%s'", e->toChars());
+	    }
+	    fprintf(stdmsg, "\n");
+	}
+	goto Lnodecl;
+    }
+    else if (ident == Id::lib)
+    {
+	if (!args || args->dim != 1)
+	    error("string expected for library name");
+	else
+	{
+	    Expression *e = (Expression *)args->data[0];
+
+	    e = e->semantic(sc);
+	    e = e->optimize(WANTvalue | WANTinterpret);
+	    args->data[0] = (void *)e;
+	    if (e->op != TOKstring)
+		error("string expected for library name, not '%s'", e->toChars());
+	    else if (global.params.verbose)
+	    {
+		StringExp *se = (StringExp *)e;
+		char *name = (char *)mem.malloc(se->len + 1);
+		memcpy(name, se->string, se->len);
+		name[se->len] = 0;
+		printf("library   %s\n", name);
+		mem.free(name);
+	    }
+	}
+	goto Lnodecl;
+    }
+#if IN_GCC
+    else if (ident == Id::GNU_asm)
+    {
+	if (! args || args->dim != 2)
+	    error("identifier and string expected for asm name");
+	else
+	{
+	    Expression *e;
+	    Declaration *d = NULL;
+	    StringExp *s = NULL;
+
+	    e = (Expression *)args->data[0];
+	    e = e->semantic(sc);
+	    if (e->op == TOKvar)
+	    {
+		d = ((VarExp *)e)->var;
+		if (! d->isFuncDeclaration() && ! d->isVarDeclaration())
+		    d = NULL;
+	    }
+	    if (!d)
+		error("first argument of GNU_asm must be a function or variable declaration");
+
+	    e = (Expression *)args->data[1];
+	    e = e->semantic(sc);
+	    e = e->optimize(WANTvalue);
+	    if (e->op == TOKstring && ((StringExp *)e)->sz == 1)
+		s = ((StringExp *)e);
+	    else
+		error("second argument of GNU_asm must be a char string");
+
+	    if (d && s)
+		d->c_ident = Lexer::idPool((char*) s->string);
+	}
+	goto Lnodecl;
+    }
+#endif
+    else if (ident == Id::startaddress)
+    {
+	if (!args || args->dim != 1)
+	    error("function name expected for start address");
+	else
+	{
+	    Expression *e = (Expression *)args->data[0];
+	    e = e->semantic(sc);
+	    e = e->optimize(WANTvalue | WANTinterpret);
+	    args->data[0] = (void *)e;
+	    Dsymbol *sa = getDsymbol(e);
+	    if (!sa || !sa->isFuncDeclaration())
+		error("function name expected for start address, not '%s'", e->toChars());
+	}
+	goto Lnodecl;
+    }
+
+    /////////////////////////////////////////////////////////////
+    /////////////////////////////////////////////////////////////
+    // LDC
+#if IN_LLVM
+
+    // pragma(intrinsic, "string") { funcdecl(s) }
+    else if (ident == Id::intrinsic)
+    {
+        Expression* expr = (Expression *)args->data[0];
+        expr = expr->semantic(sc);
+        if (!args || args->dim != 1 || !parseStringExp(expr, arg1str))
+        {
+             error("requires exactly 1 string literal parameter");
+             fatal();
+        }
+        llvm_internal = LLVMintrinsic;
+    }
+
+    // pragma(notypeinfo) { typedecl(s) }
+    else if (ident == Id::no_typeinfo)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMno_typeinfo;
+    }
+
+    // pragma(nomoduleinfo) ;
+    else if (ident == Id::no_moduleinfo)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMno_moduleinfo;
+    }
+
+    // pragma(alloca) { funcdecl(s) }
+    else if (ident == Id::Alloca)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMalloca;
+    }
+
+    // pragma(va_start) { templdecl(s) }
+    else if (ident == Id::vastart)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMva_start;
+    }
+
+    // pragma(va_copy) { funcdecl(s) }
+    else if (ident == Id::vacopy)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMva_copy;
+    }
+
+    // pragma(va_end) { funcdecl(s) }
+    else if (ident == Id::vaend)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMva_end;
+    }
+
+    // pragma(va_arg) { templdecl(s) }
+    else if (ident == Id::vaarg)
+    {
+        if (args && args->dim > 0)
+        {
+             error("takes no parameters");
+             fatal();
+        }
+        llvm_internal = LLVMva_arg;
+    }
+    
+    // pragma(ldc, "string") { templdecl(s) }
+    else if (ident == Id::ldc)
+    {
+        Expression* expr = (Expression *)args->data[0];
+        expr = expr->semantic(sc);
+        if (!args || args->dim != 1 || !parseStringExp(expr, arg1str))
+        {
+             error("requires exactly 1 string literal parameter");
+             fatal();
+        }
+        else if (arg1str == "verbose")
+        {
+            sc->module->llvmForceLogging = true;
+        }
+        else
+        {
+            error("command '%s' invalid");
+            fatal();
+        }
+    }
+
+#endif
+    // LDC
+    /////////////////////////////////////////////////////////////
+    /////////////////////////////////////////////////////////////
+
+    else if (global.params.ignoreUnsupportedPragmas)
+    {
+	if (global.params.verbose)
+	{
+	    /* Print unrecognized pragmas
+	     */
+	    printf("pragma    %s", ident->toChars());
+	    if (args)
+	    {
+		for (size_t i = 0; i < args->dim; i++)
+		{
+		    Expression *e = (Expression *)args->data[i];
+		    e = e->semantic(sc);
+		    e = e->optimize(WANTvalue | WANTinterpret);
+		    if (i == 0)
+			printf(" (");
+		    else
+			printf(",");
+		    printf("%s", e->toChars());
+		}
+		if (args->dim)
+		    printf(")");
+	    }
+	    printf("\n");
+	}
+	goto Lnodecl;
+    }
+    else
+	error("unrecognized pragma(%s)", ident->toChars());
+
+    if (decl)
+    {
+	for (unsigned i = 0; i < decl->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)decl->data[i];
+
+	    s->semantic(sc);
+
+// LDC
+#if IN_LLVM
+
+        if (llvm_internal)
+        {
+        if (s->llvmInternal)
+        {
+            error("multiple LDC specific pragmas not allowed not affect the same declaration ('%s' at '%s')", s->toChars(), s->loc.toChars());
+            fatal();
+        }
+        switch(llvm_internal)
+        {
+        case LLVMintrinsic:
+            if (FuncDeclaration* fd = s->isFuncDeclaration())
+            {
+                fd->llvmInternal = llvm_internal;
+                fd->intrinsicName = arg1str;
+                fd->linkage = LINKintrinsic;
+                ((TypeFunction*)fd->type)->linkage = LINKintrinsic;
+            }
+            else if (TemplateDeclaration* td = s->isTemplateDeclaration())
+            {
+                td->llvmInternal = llvm_internal;
+                td->intrinsicName = arg1str;
+            }
+            else
+            {
+                error("only allowed on function declarations");
+                fatal();
+            }
+            break;
+
+        case LLVMva_start:
+        case LLVMva_arg:
+            if (TemplateDeclaration* td = s->isTemplateDeclaration())
+            {
+                if (td->parameters->dim != 1)
+                {
+                    error("the '%s' pragma template must have exactly one template parameter", ident->toChars());
+                    fatal();
+                }
+                else if (!td->onemember)
+                {
+                    error("the '%s' pragma template must have exactly one member", ident->toChars());
+                    fatal();
+                }
+                else if (td->overnext || td->overroot)
+                {
+                    error("the '%s' pragma template must not be overloaded", ident->toChars());
+                    fatal();
+                }
+                td->llvmInternal = llvm_internal;
+            }
+            else
+            {
+                error("the '%s' pragma is only allowed on template declarations", ident->toChars());
+                fatal();
+            }
+            break;
+
+        case LLVMva_copy:
+        case LLVMva_end:
+            if (FuncDeclaration* fd = s->isFuncDeclaration())
+            {
+                fd->llvmInternal = llvm_internal;
+            }
+            else
+            {
+                error("the '%s' pragma is only allowed on function declarations", ident->toChars());
+                fatal();
+            }
+            break;
+
+        case LLVMno_typeinfo:
+            s->llvmInternal = llvm_internal;
+            break;
+
+        case LLVMalloca:
+            if (FuncDeclaration* fd = s->isFuncDeclaration())
+            {
+                fd->llvmInternal = llvm_internal;
+            }
+            else
+            {
+                error("the '%s' pragma must only be used on function declarations of type 'void* function(uint nbytes)'", ident->toChars());
+                fatal();
+            }
+            break;
+
+        default:
+            warning("the LDC specific pragma '%s' is not yet implemented, ignoring", ident->toChars());
+        }
+        }
+
+#endif // LDC
+
+    }
+    }
+    return;
+
+Lnodecl:
+    if (decl)
+	error("pragma is missing closing ';'");
+}
+
+int PragmaDeclaration::oneMember(Dsymbol **ps)
+{
+    *ps = NULL;
+    return TRUE;
+}
+
+const char *PragmaDeclaration::kind()
+{
+    return "pragma";
+}
+
+void PragmaDeclaration::toObjFile(int multiobj)
+{
+    if (ident == Id::lib)
+    {
+	assert(args && args->dim == 1);
+
+	Expression *e = (Expression *)args->data[0];
+
+	assert(e->op == TOKstring);
+
+	StringExp *se = (StringExp *)e;
+	char *name = (char *)mem.malloc(se->len + 1);
+	memcpy(name, se->string, se->len);
+	name[se->len] = 0;
+	obj_includelib(name);
+    }
+    else if (ident == Id::startaddress)
+    {
+	assert(args && args->dim == 1);
+	Expression *e = (Expression *)args->data[0];
+	Dsymbol *sa = getDsymbol(e);
+	FuncDeclaration *f = sa->isFuncDeclaration();
+	assert(f);
+	Symbol *s = f->toSymbol();
+    assert(0 && "startaddress pragma not implemented");
+// 	obj_startaddress(s);
+    }
+    AttribDeclaration::toObjFile(multiobj);
+}
+
+void PragmaDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    buf->printf("pragma (%s", ident->toChars());
+    if (args && args->dim)
+    {
+        buf->writestring(", ");
+        argsToCBuffer(buf, args, hgs);
+    }
+    buf->writeByte(')');
+    AttribDeclaration::toCBuffer(buf, hgs);
+}
+
+
+/********************************* ConditionalDeclaration ****************************/
+
+ConditionalDeclaration::ConditionalDeclaration(Condition *condition, Array *decl, Array *elsedecl)
+	: AttribDeclaration(decl)
+{
+    //printf("ConditionalDeclaration::ConditionalDeclaration()\n");
+    this->condition = condition;
+    this->elsedecl = elsedecl;
+}
+
+Dsymbol *ConditionalDeclaration::syntaxCopy(Dsymbol *s)
+{
+    ConditionalDeclaration *dd;
+
+    assert(!s);
+    dd = new ConditionalDeclaration(condition->syntaxCopy(),
+	Dsymbol::arraySyntaxCopy(decl),
+	Dsymbol::arraySyntaxCopy(elsedecl));
+    return dd;
+}
+
+
+int ConditionalDeclaration::oneMember(Dsymbol **ps)
+{
+    //printf("ConditionalDeclaration::oneMember(), inc = %d\n", condition->inc);
+    if (condition->inc)
+    {
+	Array *d = condition->include(NULL, NULL) ? decl : elsedecl;
+	return Dsymbol::oneMembers(d, ps);
+    }
+    *ps = NULL;
+    return TRUE;
+}
+
+void ConditionalDeclaration::emitComment(Scope *sc)
+{
+    //printf("ConditionalDeclaration::emitComment(sc = %p)\n", sc);
+    if (condition->inc)
+    {
+	AttribDeclaration::emitComment(sc);
+    }
+}
+
+// Decide if 'then' or 'else' code should be included
+
+Array *ConditionalDeclaration::include(Scope *sc, ScopeDsymbol *sd)
+{
+    //printf("ConditionalDeclaration::include()\n");
+    assert(condition);
+    return condition->include(sc, sd) ? decl : elsedecl;
+}
+
+
+void ConditionalDeclaration::addComment(unsigned char *comment)
+{
+    /* Because addComment is called by the parser, if we called
+     * include() it would define a version before it was used.
+     * But it's no problem to drill down to both decl and elsedecl,
+     * so that's the workaround.
+     */
+
+    if (comment)
+    {
+	Array *d = decl;
+
+	for (int j = 0; j < 2; j++)
+	{
+	    if (d)
+	    {
+		for (unsigned i = 0; i < d->dim; i++)
+		{   Dsymbol *s;
+
+		    s = (Dsymbol *)d->data[i];
+		    //printf("ConditionalDeclaration::addComment %s\n", s->toChars());
+		    s->addComment(comment);
+		}
+	    }
+	    d = elsedecl;
+	}
+    }
+}
+
+void ConditionalDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    condition->toCBuffer(buf, hgs);
+    if (decl || elsedecl)
+    {
+	buf->writenl();
+	buf->writeByte('{');
+	buf->writenl();
+	if (decl)
+	{
+	    for (unsigned i = 0; i < decl->dim; i++)
+	    {
+		Dsymbol *s = (Dsymbol *)decl->data[i];
+
+		buf->writestring("    ");
+		s->toCBuffer(buf, hgs);
+	    }
+	}
+	buf->writeByte('}');
+	if (elsedecl)
+	{
+	    buf->writenl();
+	    buf->writestring("else");
+	    buf->writenl();
+	    buf->writeByte('{');
+	    buf->writenl();
+	    for (unsigned i = 0; i < elsedecl->dim; i++)
+	    {
+		Dsymbol *s = (Dsymbol *)elsedecl->data[i];
+
+		buf->writestring("    ");
+		s->toCBuffer(buf, hgs);
+	    }
+	    buf->writeByte('}');
+	}
+    }
+    else
+	buf->writeByte(':');
+    buf->writenl();
+}
+
+/***************************** StaticIfDeclaration ****************************/
+
+StaticIfDeclaration::StaticIfDeclaration(Condition *condition,
+	Array *decl, Array *elsedecl)
+	: ConditionalDeclaration(condition, decl, elsedecl)
+{
+    //printf("StaticIfDeclaration::StaticIfDeclaration()\n");
+    sd = NULL;
+    addisdone = 0;
+}
+
+
+Dsymbol *StaticIfDeclaration::syntaxCopy(Dsymbol *s)
+{
+    StaticIfDeclaration *dd;
+
+    assert(!s);
+    dd = new StaticIfDeclaration(condition->syntaxCopy(),
+	Dsymbol::arraySyntaxCopy(decl),
+	Dsymbol::arraySyntaxCopy(elsedecl));
+    return dd;
+}
+
+
+int StaticIfDeclaration::addMember(Scope *sc, ScopeDsymbol *sd, int memnum)
+{
+    //printf("StaticIfDeclaration::addMember() '%s'\n",toChars());
+    /* This is deferred until semantic(), so that
+     * expressions in the condition can refer to declarations
+     * in the same scope, such as:
+     *
+     * template Foo(int i)
+     * {
+     *     const int j = i + 1;
+     *     static if (j == 3)
+     *         const int k;
+     * }
+     */
+    this->sd = sd;
+    int m = 0;
+
+    if (memnum == 0)
+    {	m = AttribDeclaration::addMember(sc, sd, memnum);
+	addisdone = 1;
+    }
+    return m;
+}
+
+
+void StaticIfDeclaration::semantic(Scope *sc)
+{
+    Array *d = include(sc, sd);
+
+    //printf("\tStaticIfDeclaration::semantic '%s', d = %p\n",toChars(), d);
+    if (d)
+    {
+	if (!addisdone)
+	{   AttribDeclaration::addMember(sc, sd, 1);
+	    addisdone = 1;
+	}
+
+	for (unsigned i = 0; i < d->dim; i++)
+	{
+	    Dsymbol *s = (Dsymbol *)d->data[i];
+
+	    s->semantic(sc);
+	}
+    }
+}
+
+const char *StaticIfDeclaration::kind()
+{
+    return "static if";
+}
+
+
+/***************************** CompileDeclaration *****************************/
+
+CompileDeclaration::CompileDeclaration(Loc loc, Expression *exp)
+    : AttribDeclaration(NULL)
+{
+    //printf("CompileDeclaration(loc = %d)\n", loc.linnum);
+    this->loc = loc;
+    this->exp = exp;
+    this->sd = NULL;
+    this->compiled = 0;
+}
+
+Dsymbol *CompileDeclaration::syntaxCopy(Dsymbol *s)
+{
+    //printf("CompileDeclaration::syntaxCopy('%s')\n", toChars());
+    CompileDeclaration *sc = new CompileDeclaration(loc, exp->syntaxCopy());
+    return sc;
+}
+
+int CompileDeclaration::addMember(Scope *sc, ScopeDsymbol *sd, int memnum)
+{
+    //printf("CompileDeclaration::addMember(sc = %p, memnum = %d)\n", sc, memnum);
+    this->sd = sd;
+    if (memnum == 0)
+    {	/* No members yet, so parse the mixin now
+	 */
+	compileIt(sc);
+	memnum |= AttribDeclaration::addMember(sc, sd, memnum);
+	compiled = 1;
+    }
+    return memnum;
+}
+
+void CompileDeclaration::compileIt(Scope *sc)
+{
+    //printf("CompileDeclaration::compileIt(loc = %d)\n", loc.linnum);
+    exp = exp->semantic(sc);
+    exp = resolveProperties(sc, exp);
+    exp = exp->optimize(WANTvalue | WANTinterpret);
+    if (exp->op != TOKstring)
+    {	exp->error("argument to mixin must be a string, not (%s)", exp->toChars());
+    }
+    else
+    {
+	StringExp *se = (StringExp *)exp;
+	se = se->toUTF8(sc);
+	Parser p(sc->module, (unsigned char *)se->string, se->len, 0);
+	p.loc = loc;
+	p.nextToken();
+	decl = p.parseDeclDefs(0);
+	if (p.token.value != TOKeof)
+	    exp->error("incomplete mixin declaration (%s)", se->toChars());
+    }
+}
+
+void CompileDeclaration::semantic(Scope *sc)
+{
+    //printf("CompileDeclaration::semantic()\n");
+
+    if (!compiled)
+    {
+	compileIt(sc);
+	AttribDeclaration::addMember(sc, sd, 0);
+	compiled = 1;
+    }
+    AttribDeclaration::semantic(sc);
+}
+
+void CompileDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
+{
+    buf->writestring("mixin(");
+    exp->toCBuffer(buf, hgs);
+    buf->writestring(");");
+    buf->writenl();
+}