如何在 Emscripten Compiler 中嵌入多个 Cpp 文件？

Question

i have two cpp files called in Main.cpp files this code to be called from ams.js files. im using Embind Compiler to call from js

here is my sample Code :

class.h

class CLASS{
public:
int VARIABLE;
void FUNCTION();
};

class.cpp

#include "CLASS.h"
void CLASS::FUNCTION()
{
VARIABLE = 5;

std::cout << "out : "+VARIABLE << std::endl;
}

Main.cpp

#include <emscripten/bind.h>
#include "CLASS.h"
using namespace emscripten;
class MyClass
{
public:
MyClass(int x)
: x(x)

{}
int getCharCount(std::string strKey)
{
CLASS a;
a.FUNCTION();

return 0;

}

private:
int x;

 };

EMSCRIPTEN_BINDINGS(my_class_example) {

 class_<MyClass>("MyClass")
 .constructor<int>()
 .function("getCharCount", &MyClass::getCharCount);

 }

For Compiling :

emcc --bind Main.cpp -o main.js

Calling the Function in Render.js

  var instance = new Module.MyClass();
  if (instance){
  var mainee  =  instance.getCharCount("hi")
  console.log("Somrthing is There");
  }else{
  console.log("Somrthing Wrong");
  }
  instance.delete();

Output error:

 main3.js:2780 Uncaught BindingError: Tried to invoke ctor of MyClass with invalid number of parameters (0) - expected (1) parameters instead!

help me to solve this issue

Answer 1

Use separate compilation.

emcc --bind -c class.cpp
emcc --bind -c main.cpp
emcc --bind class.o main.o -o main.js

But BindingError is caused by new Module.MyClass(); , try new Module.MyClass(123); .