void TypeInfoStructDeclaration::toDt(dt_t **pdt)
{
//printf("TypeInfoStructDeclaration::toDt() '%s'\n", toChars());
if (global.params.is64bit)
verifyStructSize(Type::typeinfostruct, 17 * Target::ptrsize);
else
verifyStructSize(Type::typeinfostruct, 15 * Target::ptrsize);
dtxoff(pdt, Type::typeinfostruct->toVtblSymbol(), 0); // vtbl for TypeInfo_Struct
dtsize_t(pdt, 0); // monitor
assert(tinfo->ty == Tstruct);
TypeStruct *tc = (TypeStruct *)tinfo;
StructDeclaration *sd = tc->sym;
if (!sd->members)
return;
/* Put out:
* char[] name;
* void[] init;
* hash_t function(in void*) xtoHash;
* bool function(in void*, in void*) xopEquals;
* int function(in void*, in void*) xopCmp;
* string function(const(void)*) xtoString;
* StructFlags m_flags;
* //xgetMembers;
* xdtor;
* xpostblit;
* uint m_align;
* version (X86_64)
* TypeInfo m_arg1;
* TypeInfo m_arg2;
* xgetRTInfo
*/
const char *name = sd->toPrettyChars();
size_t namelen = strlen(name);
dtsize_t(pdt, namelen);
dtabytes(pdt, 0, namelen + 1, name);
// void[] init;
dtsize_t(pdt, sd->structsize); // init.length
if (sd->zeroInit)
dtsize_t(pdt, 0); // NULL for 0 initialization
else
dtxoff(pdt, sd->toInitializer(), 0); // init.ptr
if (FuncDeclaration *fd = search_toHash(sd))
{
dtxoff(pdt, fd->toSymbol(), 0);
TypeFunction *tf = (TypeFunction *)fd->type;
assert(tf->ty == Tfunction);
/* I'm a little unsure this is the right way to do it. Perhaps a better
* way would to automatically add these attributes to any struct member
* function with the name "toHash".
* So I'm leaving this here as an experiment for the moment.
*/
if (!tf->isnothrow || tf->trust == TRUSTsystem /*|| tf->purity == PUREimpure*/)
warning(fd->loc, "toHash() must be declared as extern (D) size_t toHash() const nothrow @safe, not %s", tf->toChars());
}
else
dtsize_t(pdt, 0);
if (sd->xeq)
dtxoff(pdt, sd->xeq->toSymbol(), 0);
else
dtsize_t(pdt, 0);
if (sd->xcmp)
dtxoff(pdt, sd->xcmp->toSymbol(), 0);
else
dtsize_t(pdt, 0);
if (FuncDeclaration *fd = search_toString(sd))
{
dtxoff(pdt, fd->toSymbol(), 0);
}
else
dtsize_t(pdt, 0);
// StructFlags m_flags;
StructFlags::Type m_flags = 0;
if (tc->hasPointers()) m_flags |= StructFlags::hasPointers;
dtsize_t(pdt, m_flags);
#if DMDV2
#if 0
// xgetMembers
FuncDeclaration *sgetmembers = sd->findGetMembers();
if (sgetmembers)
dtxoff(pdt, sgetmembers->toSymbol(), 0);
else
dtsize_t(pdt, 0); // xgetMembers
#endif
// xdtor
FuncDeclaration *sdtor = sd->dtor;
if (sdtor)
dtxoff(pdt, sdtor->toSymbol(), 0);
else
dtsize_t(pdt, 0); // xdtor
// xpostblit
FuncDeclaration *spostblit = sd->postblit;
if (spostblit && !(spostblit->storage_class & STCdisable))
dtxoff(pdt, spostblit->toSymbol(), 0);
else
dtsize_t(pdt, 0); // xpostblit
#endif
// uint m_align;
dtsize_t(pdt, tc->alignsize());
if (global.params.is64bit)
{
Type *t = sd->arg1type;
for (int i = 0; i < 2; i++)
{
// m_argi
if (t)
{
t->getTypeInfo(NULL);
dtxoff(pdt, t->vtinfo->toSymbol(), 0);
}
else
dtsize_t(pdt, 0);
t = sd->arg2type;
}
}
// xgetRTInfo
if (sd->getRTInfo)
sd->getRTInfo->toDt(pdt);
else if (m_flags & StructFlags::hasPointers)
dtsize_t(pdt, 1);
else
dtsize_t(pdt, 0);
}
Expression *Type::getTypeInfo(Scope *sc)
{
//printf("Type::getTypeInfo() %p, %s\n", this, toChars());
if (!Type::dtypeinfo)
{
error(Loc(), "TypeInfo not found. object.d may be incorrectly installed or corrupt, compile with -v switch");
fatal();
}
Type *t = merge2(); // do this since not all Type's are merge'd
if (!t->vtinfo)
{
#if DMDV2
if (t->isShared()) // does both 'shared' and 'shared const'
t->vtinfo = new TypeInfoSharedDeclaration(t);
else if (t->isConst())
t->vtinfo = new TypeInfoConstDeclaration(t);
else if (t->isImmutable())
t->vtinfo = new TypeInfoInvariantDeclaration(t);
else if (t->isWild())
t->vtinfo = new TypeInfoWildDeclaration(t);
else
#endif
t->vtinfo = t->getTypeInfoDeclaration();
assert(t->vtinfo);
vtinfo = t->vtinfo;
/* If this has a custom implementation in std/typeinfo, then
* do not generate a COMDAT for it.
*/
if (!t->builtinTypeInfo())
{
// Generate COMDAT
if (sc) // if in semantic() pass
{
// Find module that will go all the way to an object file
Module *m = sc->module->importedFrom;
m->members->push(t->vtinfo);
if (ty == Tstruct)
{
Dsymbol *s;
StructDeclaration *sd = ((TypeStruct *)this)->sym;
if ((sd->xeq && sd->xeq != sd->xerreq ||
sd->xcmp && sd->xcmp != sd->xerrcmp ||
search_toHash(sd) ||
search_toString(sd)
) && inNonRoot(sd))
{
//printf("deferred sem3 for TypeInfo - sd = %s, inNonRoot = %d\n", sd->toChars(), inNonRoot(sd));
Module::addDeferredSemantic3(sd);
}
}
}
else // if in obj generation pass
{
t->vtinfo->toObjFile(global.params.multiobj);
}
}
}
if (!vtinfo)
vtinfo = t->vtinfo; // Types aren't merged, but we can share the vtinfo's
Expression *e = new VarExp(Loc(), t->vtinfo);
e = e->addressOf(sc);
e->type = t->vtinfo->type; // do this so we don't get redundant dereference
return e;
}
void AggregateDeclaration::semantic3(Scope *sc)
{
//printf("AggregateDeclaration::semantic3(%s)\n", toChars());
if (members)
{
StructDeclaration *sd = isStructDeclaration();
if (!sc) // from runDeferredSemantic3 for TypeInfo generation
goto Lxop;
sc = sc->push(this);
sc->parent = this;
for (size_t i = 0; i < members->dim; i++)
{
Dsymbol *s = (*members)[i];
s->semantic3(sc);
}
sc = sc->pop();
if (!getRTInfo && Type::rtinfo &&
(!isDeprecated() || global.params.useDeprecated) && // don't do it for unused deprecated types
(type && type->ty != Terror)) // or error types
{
// Evaluate: RTinfo!type
Objects *tiargs = new Objects();
tiargs->push(type);
TemplateInstance *ti = new TemplateInstance(loc, Type::rtinfo, tiargs);
ti->semantic(sc);
ti->semantic2(sc);
ti->semantic3(sc);
Dsymbol *s = ti->toAlias();
Expression *e = new DsymbolExp(Loc(), s, 0);
Scope *sc2 = ti->tempdecl->scope->startCTFE();
sc2->instantiatingModule = sc->instantiatingModule ? sc->instantiatingModule : sc->module;
e = e->semantic(sc2);
sc2->endCTFE();
e = e->ctfeInterpret();
getRTInfo = e;
}
if (sd)
{
Lxop:
if (sd->xeq &&
sd->xeq->scope &&
sd->xeq->semanticRun < PASSsemantic3done)
{
unsigned errors = global.startGagging();
sd->xeq->semantic3(sd->xeq->scope);
if (global.endGagging(errors))
sd->xeq = sd->xerreq;
}
if (sd->xcmp &&
sd->xcmp->scope &&
sd->xcmp->semanticRun < PASSsemantic3done)
{
unsigned errors = global.startGagging();
sd->xcmp->semantic3(sd->xcmp->scope);
if (global.endGagging(errors))
sd->xcmp = sd->xerrcmp;
}
FuncDeclaration *ftostr = search_toString(sd);
if (ftostr &&
ftostr->scope &&
ftostr->semanticRun < PASSsemantic3done)
{
ftostr->semantic3(ftostr->scope);
}
FuncDeclaration *ftohash = search_toHash(sd);
if (ftohash &&
ftohash->scope &&
ftohash->semanticRun < PASSsemantic3done)
{
ftohash->semantic3(ftohash->scope);
}
}
}
}
TypeInfoDeclaration *Type::buildTypeInfo(Scope *sc, bool checkNeedSemantic)
{
if (vtinfo)
return vtinfo;
if (sc && checkNeedSemantic && !typeInfoNeedsSemantic())
return 0;
//printf("Type::getTypeInfo() %p, %s\n", this, toChars());
if (!Type::dtypeinfo)
{
error(Loc(), "TypeInfo not found. object.d may be incorrectly installed or corrupt, compile with -v switch");
fatal();
}
Type *t = merge2(); // do this since not all Type's are merge'd
if (!t->vtinfo)
{
if (t->isShared()) // does both 'shared' and 'shared const'
t->vtinfo = new TypeInfoSharedDeclaration(t);
else if (t->isConst())
t->vtinfo = new TypeInfoConstDeclaration(t);
else if (t->isImmutable())
t->vtinfo = new TypeInfoInvariantDeclaration(t);
else if (t->isWild())
t->vtinfo = new TypeInfoWildDeclaration(t);
else
t->vtinfo = t->getTypeInfoDeclaration();
assert(t->vtinfo);
vtinfo = t->vtinfo;
/* If this has a custom implementation in std/typeinfo, then
* do not generate a COMDAT for it.
*/
if (t->ty == Terror)
vtinfo->errors = 1;
else if (!t->builtinTypeInfo())
{
// Generate COMDAT
if (sc) // if in semantic() pass
{
// Find module that will go all the way to an object file
Module *m = sc->module->importedFrom;
m->members->push(t->vtinfo);
if(m->semanticRun >= 3)
{
Module::addDeferredSemantic3(t->vtinfo);
t->vtinfo->deferredScope = sc;
sc->setNoFree();
}
if (ty == Tstruct)
{
Dsymbol *s;
StructDeclaration *sd = ((TypeStruct *)this)->sym;
if (sd->members &&
(sd->xeq && sd->xeq != sd->xerreq ||
sd->xcmp && sd->xcmp != sd->xerrcmp ||
search_toHash(sd) ||
search_toString(sd)
) && inNonRoot(sd))
{
//printf("deferred sem3 for TypeInfo - sd = %s, inNonRoot = %d\n", sd->toChars(), inNonRoot(sd));
Module::addDeferredSemantic3(sd);
}
}
}
else // if in obj generation pass
{
// it is always a problem if this is called from the backend without
// being added to the AST for semantic analysis (no RTInfo generated)
// to ease transition, modifier types are just put out as they just forward
// to the actual TypeInfo
if (t->typeInfoNeedsSemantic())
error(Loc(), "ICE: unexpected type info request for %s", t->toChars());
t->vtinfo->toObjFile(global.params.multiobj);
}
}
}
if (!vtinfo)
vtinfo = t->vtinfo; // Types aren't merged, but we can share the vtinfo's
return vtinfo;
}
void AggregateDeclaration::semantic3(Scope *sc)
{
//printf("AggregateDeclaration::semantic3(%s)\n", toChars());
if (members)
{
StructDeclaration *sd = isStructDeclaration();
if (!sc) // from runDeferredSemantic3 for TypeInfo generation
goto Lxop;
sc = sc->push(this);
sc->parent = this;
for (size_t i = 0; i < members->dim; i++)
{
Dsymbol *s = (*members)[i];
s->semantic3(sc);
}
sc = sc->pop();
type->buildTypeInfo(sc, false); // implicitely calls generateTypeInfoData
if (type->vtinfo && type->builtinTypeInfo())
type->vtinfo->semantic3(sc);
if (sd)
{
Lxop:
if (sd->xeq &&
sd->xeq->scope &&
sd->xeq->semanticRun < PASSsemantic3done)
{
unsigned errors = global.startGagging();
sd->xeq->semantic3(sd->xeq->scope);
if (global.endGagging(errors))
sd->xeq = sd->xerreq;
}
if (sd->xcmp &&
sd->xcmp->scope &&
sd->xcmp->semanticRun < PASSsemantic3done)
{
unsigned errors = global.startGagging();
sd->xcmp->semantic3(sd->xcmp->scope);
if (global.endGagging(errors))
sd->xcmp = sd->xerrcmp;
}
FuncDeclaration *ftostr = search_toString(sd);
if (ftostr &&
ftostr->scope &&
ftostr->semanticRun < PASSsemantic3done)
{
ftostr->semantic3(ftostr->scope);
}
FuncDeclaration *ftohash = search_toHash(sd);
if (ftohash &&
ftohash->scope &&
ftohash->semanticRun < PASSsemantic3done)
{
ftohash->semantic3(ftohash->scope);
}
}
}
}