bool hasNonConstPointers(Expression *e)
{
if (e->type->ty == Terror)
return false;
if (e->op == TOKnull)
return false;
if (e->op == TOKstructliteral)
{
StructLiteralExp *se = (StructLiteralExp *)e;
return arrayHasNonConstPointers(se->elements);
}
if (e->op == TOKarrayliteral)
{
if (!e->type->nextOf()->hasPointers())
return false;
ArrayLiteralExp *ae = (ArrayLiteralExp *)e;
return arrayHasNonConstPointers(ae->elements);
}
if (e->op == TOKassocarrayliteral)
{
AssocArrayLiteralExp *ae = (AssocArrayLiteralExp *)e;
if (ae->type->nextOf()->hasPointers() &&
arrayHasNonConstPointers(ae->values))
return true;
if (((TypeAArray *)ae->type)->index->hasPointers())
return arrayHasNonConstPointers(ae->keys);
return false;
}
if (e->type->ty== Tpointer && e->type->nextOf()->ty != Tfunction)
{
#if IN_LLVM
// address of a global is OK
if (e->op == TOKaddress || e->op == TOKcast)
return false;
if (e->op == TOKadd || e->op == TOKmin) {
BinExp *be = (BinExp*)e;
if (be->e1->type->ty == Tpointer || be->e2->type->ty == Tpointer)
return false;
}
#else
if (e->op == TOKsymoff) // address of a global is OK
return false;
#endif
if (e->op == TOKint64) // cast(void *)int is OK
return false;
if (e->op == TOKstring) // "abc".ptr is OK
return false;
return true;
}
return false;
}
bool hasNonConstPointers(Expression *e)
{
if (e->type->ty == Terror)
return false;
if (e->op == TOKnull)
return false;
if (e->op == TOKstructliteral)
{
StructLiteralExp *se = (StructLiteralExp *)e;
return arrayHasNonConstPointers(se->elements);
}
if (e->op == TOKarrayliteral)
{
if (!e->type->nextOf()->hasPointers())
return false;
ArrayLiteralExp *ae = (ArrayLiteralExp *)e;
return arrayHasNonConstPointers(ae->elements);
}
if (e->op == TOKassocarrayliteral)
{
AssocArrayLiteralExp *ae = (AssocArrayLiteralExp *)e;
if (ae->type->nextOf()->hasPointers() &&
arrayHasNonConstPointers(ae->values))
return true;
if (((TypeAArray *)ae->type)->index->hasPointers())
return arrayHasNonConstPointers(ae->keys);
return false;
}
if(e->op == TOKaddress)
{
AddrExp *ae = (AddrExp *)e;
if (ae->e1->op == TOKstructliteral)
{
StructLiteralExp *se = (StructLiteralExp *)ae->e1;
if (!(se->stageflags & stageSearchPointers))
{
int old = se->stageflags;
se->stageflags |= stageSearchPointers;
bool ret = arrayHasNonConstPointers(se->elements);
se->stageflags = old;
return ret;
}
else
{
return false;
}
}
return true;
}
if (e->type->ty== Tpointer && e->type->nextOf()->ty != Tfunction)
{
if (e->op == TOKsymoff) // address of a global is OK
return false;
if (e->op == TOKint64) // cast(void *)int is OK
return false;
if (e->op == TOKstring) // "abc".ptr is OK
return false;
return true;
}
return false;
}