// file      : build/target -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Tools CC
// license   : MIT; see accompanying LICENSE file

#include <string>
#include <vector>
#include <functional>

namespace build
{
  class target;
  typedef std::vector<std::reference_wrapper<target>> targets;

  class target
  {
  public:
    target (std::string n): name_ (n) {}

    const std::string&
    name () const {return name_;}

    const targets&
    prerequisites () const {return prerequisites_;}

    targets&
    prerequisites () {return prerequisites_;}

    void
    prerequisite (target& t) {prerequisites_.push_back (t);}

  public:
    typedef bool (*rule_type) (target&, const targets&);

    rule_type
    rule () const {return rule_;}

    void
    rule (rule_type r) {rule_ = r;}

  private:
    target (const target&) = delete;
    target& operator= (const target&) = delete;

  private:
    std::string name_;
    targets prerequisites_;
    rule_type rule_ {0};
  };

  class exe: public target
  {
    using target::target;
  };

  class obj: public target
  {
    using target::target;
  };

  class hxx: public target
  {
    using target::target;
  };

  class cxx: public target
  {
    using target::target;
  };
}