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// file : build/target-type -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef BUILD_TARGET_TYPE
#define BUILD_TARGET_TYPE
#include <map>
#include <string>
#include <ostream>
#include <typeindex>
#include <functional> // reference_wrapper
#include <butl/utility> // compare_c_string
#include <build/types>
namespace build
{
class scope;
class target;
class target_key;
class prerequisite_key;
// Target type.
//
struct target_type
{
std::type_index id;
const char* name;
const target_type* base;
target* (*const factory) (dir_path, std::string, const std::string*);
const std::string& (*const extension) (const target_key&, scope&);
target* (*const search) (const prerequisite_key&);
bool see_through; // A group with the default "see through" semantics.
bool
is_a (const std::type_index&) const; // Defined in target.cxx
template <typename T>
bool
is_a () const {return is_a (typeid (T));}
};
inline bool
operator< (const target_type& x, const target_type& y)
{
return x.id < y.id;
}
inline std::ostream&
operator<< (std::ostream& os, const target_type& tt)
{
return os << tt.name;
}
// Target type map.
//
using target_type_map_base = std::map<
const char*,
std::reference_wrapper<const target_type>,
butl::compare_c_string>;
class target_type_map: public target_type_map_base
{
public:
void
insert (const target_type& tt) {emplace (tt.name, tt);}
template <typename T>
void
insert () {insert (T::static_type);}
};
}
#endif // BUILD_TARGET_TYPE
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