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Rain Dog

Registering a function that returns a reference to a paremetrized type

6 posts in this topic

I am trying to register a vector< vector<int> > object using deyja's new vector registration code and it appears to work fine except when i register a vector of vectors. The problem occurs when the code attempts to register with the script engine a method or function that takes as a parameter or returns as a result a object of type [vector of vectors]
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it would probably simplify things for you and the compiler if you typedef'd your vector of vectors.

Or even typedef'd your int vector, then used it in your other vector.
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I get an "invalid configuration" error when i attempt to register these functions:

error_code = engine->RegisterObjectBehaviour(V_AS.c_str(),
asBEHAVE_INDEX,
(T_AS+"& f(int)").c_str(),
asFUNCTION(vectorRegisterHelper<T>::Index),
asCALL_CDECL_OBJLAST);
assert(error_code == 0 && "Failed to register operator[]");



and this one:
error_code = engine->RegisterObjectMethod(V_AS.c_str(),
(std::string("void push_back(const ")+T_AS+"&)").c_str(),
asFUNCTION(vectorRegisterHelper< T >::PushBack),
asCALL_CDECL_OBJLAST);
assert(error_code == 0 && "Failed to register push_back");



The calling code is formulated as so:


RegisterVector<int>("IntArray" , "int" , engine);
//RegisterVector< vector<int> >("IntArrayArray" , "vector<int>" , engine);

RegisterVector<int>("IntArray" , "int" , engine);
//RegisterVector< vector<int> >("IntArrayArray" , "vector<int>" , engine);
RegisterVector<float>("FloatArray", "float", engine);
//RegisterVector< vector<float> >("FloatArrayArray" , "vector<float>" , engine);
RegisterVector<double>("DoubleArray", "double", engine);
//RegisterVector< vector<double> >("DoubleArrayArray" , "vector<double>" , engine);
//RegisterVector<long>("LongArray", "long", engine);
//RegisterVector< vector<long> >("LongArrayArray" , "vector<long>" , engine);
RegisterVector<string>("StringArray", "string", engine);
//RegisterVector< vector<string> >("StringArrayArray" , "vector<string>" , engine);
[/code]


All of the commented out sections cause the registration in the previous listed sections to fail.
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The problem lies with the second parameter passed to RegisterVector().

The second array contains objects of IntArray, not vector<int>.

RegisterVector<int>("IntArray" , "int" , engine);
RegisterVector< vector<int> >("IntArrayArray", "IntArray", engine);

Hope that helps [smile]
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I should have clarified myself, but I'm glad WL understands my code well enough to answer that question already. :D
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