Golang的缠绕包装

Question

I'm having trouble to use swig to wrap a c++ library for golang. Here is my c++ header file.

class Builder {
 public:
  explicit Builder(int i):counters(i){} 
  void Init(); 
  void CreateCounters(vector<std::unique_ptr<int>>* s);
  bool CreateEntry(string* primary_key);
 private:
  std::shared_ptr<hash_set<string>> ids;
  int counters;
};

I just want to wrap Builder class and its constructor, Init() and CreateEntry function. Here is my swig API

%{
#include "builder.h"
%}

%ignoreall

%unignore Builder;
%unignore Builder::Init();
%unignore CreateEntry(string* primary_key);

%include "builder.h"

%unignoreall

But when I compile I get error pointing to the CreateCounters function which has a argument of unique_ptr vector. Can anyone tell me whats wrong in here?

Thanks in advance :)

Answer 1

Your swig file doesn't have a module name. Try this...

%module builder
%{
#include "builder.h"
%}

%ignoreall

%unignore Builder;
%unignore Builder::Init();
%unignore CreateEntry(string* primary_key);

%include "builder.h"

%unignoreall

The module name translates to the name of the package your wrapped code resides in.

Also for c++ code, ensure your swig file is named something like 'builder.swigcxx' the extension is important as otherwise it'll assume you're wrapping pure C.