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// file : build/target.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#include <build/target>
#include <build/context>
#include <build/diagnostics>
using namespace std;
namespace build
{
// target
//
ostream&
operator<< (ostream& os, const target& t)
{
os << t.type ().name << '{';
if (!t.directory.empty ())
{
string s (diagnostic_string (t.directory));
if (!s.empty ())
os << s << path::traits::directory_separator;
}
os << t.name;
if (t.ext != nullptr)
os << '.' << *t.ext;
os << '}';
return os;
}
// target_set
//
auto target_set::
insert (const target_type& tt,
path dir,
std::string name,
const std::string* ext,
tracer& tr) -> pair<target&, bool>
{
//@@ OPT: would be nice to somehow first check if this target is
// already in the set before allocating a new instance.
// Find or insert.
//
auto r (
emplace (
unique_ptr<target> (tt.factory (move (dir), move (name), ext))));
target& t (**r.first);
// Update the extension if the existing target has it unspecified.
//
if (t.ext != ext)
{
trace (4, [&]{
tracer::record r (tr);
r << "assuming target " << t << " is the same as the one with ";
if (ext == nullptr)
r << "unspecified extension";
else if (ext->empty ())
r << "no extension";
else
r << "extension " << *ext;
});
if (ext != nullptr)
t.ext = ext;
}
return pair<target&, bool> (t, r.second);
}
target_set targets;
target* default_target = nullptr;
target_type_map target_types;
// path_target
//
timestamp path_target::
load_mtime () const
{
assert (!path_.empty ());
return path_mtime (path_);
}
const target_type target::static_type {
typeid (target), "target", nullptr, nullptr};
const target_type mtime_target::static_type {
typeid (mtime_target), "mtime_target", &target::static_type, nullptr};
const target_type path_target::static_type {
typeid (path_target), "path_target", &mtime_target::static_type, nullptr};
const target_type file::static_type {
typeid (file), "file", &path_target::static_type, &target_factory<file>};
}
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