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// file : libbuild2/functions-name.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <libbuild2/scope.hxx>
#include <libbuild2/function.hxx>
#include <libbuild2/variable.hxx>
using namespace std;
namespace build2
{
// Convert name to target'ish name (see below for the 'ish part). Return
// raw/unprocessed data in case this is an unknown target type (or called
// out of scope). See scope::find_target_type() for details.
//
static pair<name, optional<string>>
to_target (const scope* s, name&& n)
{
optional<string> e;
if (s != nullptr)
{
auto rp (s->find_target_type (n, location ()));
if (rp.first != nullptr)
n.type = rp.first->name;
e = move (rp.second);
}
return make_pair (move (n), move (e));
}
void
name_functions ()
{
function_family f ("name");
// These functions treat a name as a target/prerequisite name.
//
// While on one hand it feels like calling them target.name(), etc., would
// have been more appropriate, on the other hand they can also be called
// on prerequisite names. They also won't always return the same result as
// if we were interrogating an actual target (e.g., the directory may be
// relative).
//
f["name"] = [](const scope* s, name n)
{
return to_target (s, move (n)).first.value;
};
f["name"] = [](const scope* s, names ns)
{
return to_target (s, convert<name> (move (ns))).first.value;
};
// Note: returns NULL if extension is unspecified (default) and empty if
// specified as no extension.
//
f["extension"] = [](const scope* s, name n)
{
return to_target (s, move (n)).second;
};
f["extension"] = [](const scope* s, names ns)
{
return to_target (s, convert<name> (move (ns))).second;
};
f["directory"] = [](const scope* s, name n)
{
return to_target (s, move (n)).first.dir;
};
f["directory"] = [](const scope* s, names ns)
{
return to_target (s, convert<name> (move (ns))).first.dir;
};
f["target_type"] = [](const scope* s, name n)
{
return to_target (s, move (n)).first.type;
};
f["target_type"] = [](const scope* s, names ns)
{
return to_target (s, convert<name> (move (ns))).first.type;
};
// Note: returns NULL if no project specified.
//
f["project"] = [](const scope* s, name n)
{
return to_target (s, move (n)).first.proj;
};
f["project"] = [](const scope* s, names ns)
{
return to_target (s, convert<name> (move (ns))).first.proj;
};
// Name-specific overloads from builtins.
//
function_family b ("builtin");
b[".concat"] = [](dir_path d, name n)
{
d /= n.dir;
n.dir = move (d);
return n;
};
}
}
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