LLValue* DtoIndexStruct(LLValue* src, StructDeclaration* sd, VarDeclaration* vd)
{
Logger::println("indexing struct field %s:", vd->toPrettyChars());
LOG_SCOPE;
DtoResolveStruct(sd);
// vd must be a field
IrField* field = vd->ir.irField;
assert(field);
// get the start pointer
const LLType* st = getPtrToType(DtoType(sd->type));
// cast to the formal struct type
src = DtoBitCast(src, st);
// gep to the index
LLValue* val = DtoGEPi(src, 0, field->index);
// do we need to offset further? (union area)
if (field->unionOffset)
{
// cast to void*
val = DtoBitCast(val, getVoidPtrType());
// offset
val = DtoGEPi1(val, field->unionOffset);
}
// cast it to the right type
val = DtoBitCast(val, getPtrToType(DtoType(vd->type)));
if (Logger::enabled())
Logger::cout() << "value: " << *val << '\n';
return val;
}
void DtoResolveStruct(StructDeclaration* sd)
{
DtoResolveStruct(sd, sd->loc);
}