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Does Tolua++ works with unions, because I can't get this to work:

// matrix44.h

class matrix44 {
public:
   union {
       float m[4][4];
       struct {
            float _11, _12, _13, _14;
            float _21, _22, _23, _24;
            float _31, _32, _33, _34;
            float _41, _42, _43, _44;
       };
   };
};

// matrix44.pkg

class matrix44 {
public:
   union {
       float m[4][4];
       struct {
            float _11, _12, _13, _14;
            float _21, _22, _23, _24;
            float _31, _32, _33, _34;
            float _41, _42, _43, _44;
       };
   };
};


ERROR:
** tolua internal error: [string "tolua: embedded Lua code 7"]:459: #parse error. 
stack traceback:
	[string "tolua: embedded Lua code 21"]:6: in main chunk




From: Herbert Leuwer <herbert.leuwer@t-online.de>
Reply-To: Lua list <lua@bazar2.conectiva.com.br>
To: Lua list <lua@bazar2.conectiva.com.br>
Subject: Re: [ANN] tolua++ 1.0.5 and lua_qt 0.0.1a
Date: Tue, 12 Apr 2005 18:49:28 +0200

The possibility to wrap unions with tolua is a great advantage, thanks.
However, I recognised the following problem.

The following works find when only using structs:
struct a {
...
};

struct A {
 struct a x;
 ...
};

It does not work for unions (parser error).
/* Kind A - not working */
struct a {
 ...
};

union A {
 struct a x;
 ...
};

fails.
I have to put struct a first into a typedef which can then be successfully used inside the 
union, e.g.
...
/* Kind B - works */
typedef struct a a;
union A {
 a x;
 ...
};
The need for the typedef is ugly, because it prohibits a very common practice in C.
Is it a big issue to change the parser such that it accepts kind A definitions ? 

Thanks
Herbert


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