--- Stefan Reuther <sr...@ma...> wrote:
> whether it fits into its imagination. For example, my "if"
> handling code starts with (the equivalent of)
> assert(p->First()->Eq("if"));
> assert(p->Second()->Eq('('));
> assert(p->Nth(3)->Eq(')'));
This is exactly the interface that needs to be rethought to make
openc++ more valuable. The current usage of the positions, and the
exposure of makes OpenC++ not very reusable.
If we have an If object, this should read like
this is just a simple class model :
class BaseNode
{};// the base class of the tree
class Token
{
public :
int Eq(const char * pstr){
};
}; // the base class of the leaves
class BaseNodeRef
{
BaseNode * _p;
public:
BaseNodeRef(BaseNode * p) :
_p(p)
{
};
void assert(int x){
}
BaseNode * p()
{
return _p;
}
Token * Nth(int p)
{
return 0;// todo
}
};
class IfNode : public BaseNodeRef
{
enum IfValues {
OPENCXX_IF_NAME = 1,
OPENCXX_IF_OPENPAREN = 2,
OPENCXX_IF_CLOSEPAREN = 3
} ;
public :
IfNode(BaseNode * p)
: BaseNodeRef (p)
{
}
void assert()
{
BaseNodeRef::assert(GetToken()->Eq("if"));
BaseNodeRef::assert(GetOpenP()->Eq("("));
BaseNodeRef::assert(GetCloseP()->Eq(")"));
}
Token * GetToken()
{
return Nth(OPENCXX_IF_NAME);
}
Token * GetOpenP()
{
return Nth(OPENCXX_IF_OPENPAREN);
}
Token * GetCloseP()
{
return Nth(OPENCXX_IF_CLOSEPAREN);
}
};
=====
James Michael DuPont
http://introspector.sourceforge.net/
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