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// file : libbuild2/function.test.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <iostream>
#include <libbuild2/types.hxx>
#include <libbuild2/utility.hxx>
#include <libbuild2/scope.hxx>
#include <libbuild2/parser.hxx>
#include <libbuild2/context.hxx>
#include <libbuild2/function.hxx>
#include <libbuild2/variable.hxx>
#include <libbuild2/diagnostics.hxx>
using namespace std;
namespace build2
{
static const optional<const value_type*> arg_bool[1] =
{
&value_traits<bool>::value_type
};
static dir_path
scoped (const scope*, dir_path d)
{
return d;
}
static void
scoped_void (const scope*, dir_path)
{
}
int
main (int, char* argv[])
{
// Fake build system driver, default verbosity.
//
init_diag (1);
init (nullptr, argv[0]);
reset (strings ()); // No command line variables.
function_family f ("dummy");
f["fail"] = []() {fail << "failed" << endf;};
f["fail_arg"] = [](names a) {return convert<uint64_t> (move (a[0]));};
f["nullable"] = [](names* a) {return a == nullptr;};
f["optional"] = [](optional<names> a) {return !a;};
f["dummy0"] = []() {return "abc";};
f["dummy1"] = [](string s) {return s;};
f["dummy2"] = [](uint64_t x, uint64_t y) {return x + y;};
f["ambig"] = [](names a, optional<string>) {return a;};
f["ambig"] = [](names a, optional<uint64_t>) {return a;};
f["reverse"] = [](names a) {return a;};
f["scoped"] = [](const scope*, names a) {return a;};
f["scoped_void"] = [](const scope*, names) {};
f["scoped"] = &scoped;
f["scoped_void"] = &scoped_void;
f[".qual"] = []() {return "abc";};
f[".length"] = &path::size; // Member function.
f[".type"] = &name::type; // Data member.
f[".abs"] = [](dir_path d) {return d.absolute ();};
// Variadic function with first required argument of type bool. Returns
// number of arguments passed.
//
functions.insert (
"variadic",
function_overload (
nullptr,
1,
function_overload::arg_variadic,
function_overload::types (arg_bool, 1),
[] (const scope*, vector_view<value> args, const function_overload&)
{
return value (static_cast<uint64_t> (args.size ()));
}));
// Dump arguments.
//
functions.insert (
"dump",
function_overload (
nullptr,
0,
function_overload::arg_variadic,
function_overload::types (),
[] (const scope*, vector_view<value> args, const function_overload&)
{
for (value& a: args)
{
if (a.null)
cout << "[null]";
else if (!a.empty ())
{
names storage;
cout << reverse (a, storage);
}
cout << endl;
}
return value (nullptr);
}));
try
{
scope& s (*scope::global_);
parser p;
p.parse_buildfile (cin, path ("buildfile"), s, s);
}
catch (const failed&)
{
return 1;
}
return 0;
}
}
int
main (int argc, char* argv[])
{
return build2::main (argc, argv);
}
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