#ifndef GLSHADER_SHADER_HPP
 #define GLSHADER_SHADER_HPP
 
 
 #include <vector>
 #include <string>
 
 #include <GL/glew.h>
 
 
 class Shader {
 public:
 
     Shader(std::vector<std::string> paths, std::string name = "");
     Shader(Shader &&);
     Shader(Shader const &);
     Shader & operator=(Shader &&);
     Shader & operator=(Shader const &);
     ~Shader();
 
     Shader & use();
     Shader & validate();
 
 private:
 
     void new_();
     void delete_();
     void ensure_current_(
         std::string const & operation,
         std::string const & name = ""
     );
 
     GLuint program_;
     std::vector<std::string> paths_;
     std::string name_;
 };
 
 
 #ifdef NDEBUG
     #define GLSHADER_ENSURE_CURRENT(OPERATION, NAME)
 #else
     #define GLSHADER_ENSURE_CURRENT(OPERATION, NAME) \
         ensure_current_(OPERATION, NAME)
 #endif
 
 
 #endif // GLSHADER_SHADER_HPP