Pass complex C++ object to Javascript

[Artur]

Hello. In my WebAssembly application I have an instance of the following C++ class:

class MyData

{

public:

string str1, str2, str3;

vector<uint8_t> somevector;

};

MyData data;

I want to pass data object as an argument for JavaScript function

EM_ASM_({

    receiveData($0);

}, data);

But this doesn't work. Is there any other way to do this, without sending pointer and reading directly from wasm memory in JavaScript?

[Alexandre Perrot]

Hi,


EM_ASM_ only supports int or double values : https://kripken.github.io/emscripten-site/docs/api_reference/emscripten.h.html

But you can still use embind : https://kripken.github.io/emscripten-site/docs/porting/connecting_cpp_and_javascript/embind.html