llvm dev - Jul 2013 - [LLVMdev] Getting strcut member attributes

Hi,

I need a help,

#define OPT
#define MAN

struct A
{
   int i;
   char* c;
 };


struct B
{
  OPT A a;
  MAN int i;
};

After parsing the above .h file,   how to get the attributes of B members
specifically
for member A which is prefixed with OPT...

So far am able to get type of a as A but unable to OPT...as it might be
preprocessed and as it is empty
it may discarded or...



regards
ragha

Hi ragha, as this is a clang question I suggest you ask on the clang mailing
list.

Best wishes, Duncan.

On 10/07/13 16:50, Raghavendra K wrote:
>
> Hi,
>
> I need a help,
>
> #define OPT
> #define MAN
>
> struct A
> {
>     int i;
>     char* c;
>   };
>
>
> struct B
> {
>    OPT A a;
>    MAN int i;
> };
>
> After parsing the above .h file,   how to get the attributes of B members
specifically
> for member A which is prefixed with OPT...
>
> So far am able to get type of a as A but unable to OPT...as it might be
preprocessed and as it is empty
> it may discarded or...
>
>
>
> regards
> ragha
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

Hi,

I need a help,

#define OPT
#define MAN

struct A
{
   int i;
   char* c;
 };


struct B
{
  OPT A a;
  MAN int i;
};

After parsing the above .h file,   how to get the attributes of B members
specifically
for member A which is prefixed with OPT...

So far am able to get type of a as A but unable to OPT...as it might be
preprocessed and as it is empty
it may discarded or...



regards
ragha
_______________________________________________
LLVM Developers mailing list
LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

On 2013-07-11 10:40, Raghavendra K wrote:
> #define OPT
> #define MAN
>
> struct A
> {
>     int i;
>     char* c;
>   };
>
>
> struct B
> {
>    OPT A a;
>    MAN int i;
> };
>
> After parsing the above .h file,   how to get the attributes of B members
specifically
> for member A which is prefixed with OPT...
>
> So far am able to get type of a as A but unable to OPT...as it might be
preprocessed and as it is empty
> it may discarded or...
>
Are you talking about Clang's AST (in which case you should ask your 
question on cfe-dev, not here) or IR?
In either case, empty preprocessor defines are gone. There's no way to 
recover them. Instead, define OPT and MAN to be something like 
__attribute__((annotate("opt"))), which will be preserved.

Sebastian