Convert pp::Var array in chrome native client to a C integer array

Question

I am working on a google chrome extension wherein I am receiving an array of integers from the extension by pp::Var shared = dict_message.Get("shared_list");. Now I need to pass on this array to a C function, hence need to get the elements into int*. How do I go about doing that ?

Answer 1

First, make sure the pp::Var is really an array.

if (shared.is_array()) {

Then, use the interfaces provided by class pp::VarArray.

    pp::VarArray array(shared);
    int * carray = new int[array.GetLength()];
    for (uint32_t i = 0; i < array.GetLength(); ++i) {
        pp::Var oneElem(array.Get(i));
        assert(oneElem.is_number());
        carray[i] = oneElem.AsInt();
    }
    // carray is ready to use
    delete [] carray;
}