[aspectc-user] Namespace problems

[Olaf Spinczyk]

Hi,

this looks like an include-cycle problem (see section 5.1.1 of the ac++ compiler
manual). Does it work if you don't include "CConcreateFactory1.h" in your aspect
header file? You don't need this header file just for matching
"std::CConcreateFactory%".

- Olaf


Liu YueChang wrote:
> Hello everybody
> 
> Could anybody tell me how can I solve this problem? The error message
> of this aspect c++ is so confused.
> 
> I just try to use aspect c++ to write factory pattern. But I can not
> give the correct matching pattern because of the namespace. I think
> the namespase is a big problem in Aspect C++. It always give very blur
> error message.
> 
> If I compile the following sourcecode, it said "error: invalid
> declaration near token `:'".
> 
> The error just occur at CConcreateFactory1::CConcreateFactory1()
> 
> Also, if I give a constructor inside the std::CAbstract, the compiler
> will report that the constructor name is invalid. I really confused.
> 
> I am using aspect c++ with MinGW
> 
> Thanks a lot.
> 
> Richard
> 
> The following is my source code:
> 
> 
> ////////////////////////////////////////////////////////////AAbstractFactory.ah
> 
> #ifndef __AABSTRACTFACTORY_AH__
> #define __AABSTRACTFACTORY_AH__
> #include "CConcreateFactory1.h"
> #include "CAbstractProductA.h"
> #include "CAbstractProductB.h"
> 
> aspect AAbstractFactory {
>     advice "std::CConcreateFactory%" : slice class : public
> std::CAbstract {
>         public:
>         virtual std::CAbstractProductA createProductA() = 0;
>         virtual std::CAbstractProductB createProductB() = 0;
>     };
> };
> #endif
> 
> ////////////////////////////////////////////////////////////CConcreateFactory1.cpp
> 
> #include "CConcreateFactory1.h"
> 
> namespace std
> {
> 
> CConcreateFactory1::CConcreateFactory1()
> {
>     cout << "construction of CConcreateFactory1" << endl;
> }
> 
> CConcreateFactory1::~CConcreateFactory1()
> {
>     cout << "destruction of CConcreateFactory1" << endl;
> }
> 
> CAbstractProductA* CConcreateFactory1::createProductA()
> {
>    return new CProductA1();
> }
> 
> CAbstractProductB* CConcreateFactory1::createProductB()
> {
>    return new CProductB1();
> }
> }
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