task_base.hpp

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#pragma once
 
#include <memory>
 
namespace toolbox::base::detail
{
// Abstract base class for type erasure
struct task_base
{
  virtual ~task_base() = default;
  virtual void execute() = 0;  // Pure virtual function to execute the task
};
 
// Template derived class to hold the actual callable object
template<typename F>
struct task_derived : task_base
{
  F func;  // The callable object (lambda, function, etc.)
 
  // Constructor moves the callable object into the 'func' member
  explicit task_derived(F&& f)
      : func(std::move(f))
  {
  }
 
  // Override execute to call the stored callable
  void execute() override { func(); }
};
}  // namespace toolbox::base::detail