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#include "variant.hpp"
// variant_test.cpp - Testsuite for multi-type container that's better than boost's.
//
// Copyright © 2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <gtest/gtest.h>
#include "../strings/vstring.hpp"
//#include "../poison.hpp"
namespace tmwa
{
struct Tracker
{
int id, moves, copies;
explicit
Tracker(int i)
: id(i), moves(0), copies(0)
{}
Tracker(Tracker&& rhs)
: id(rhs.id), moves(rhs.moves + 1), copies(rhs.copies)
{ rhs.id = 0; }
Tracker(const Tracker& rhs)
: id(rhs.id), moves(rhs.moves), copies(rhs.copies + 1)
{}
Tracker& operator = (Tracker&& rhs)
{ id = rhs.id; moves = rhs.moves + 1; copies = rhs.copies; rhs.id = 0; return *this; }
Tracker& operator = (const Tracker& rhs)
{ id = rhs.id; moves = rhs.moves; copies = rhs.copies + 1; return *this; }
};
struct Foo : Tracker
{
// needed for first param of variant
Foo() noexcept : Tracker(0) { abort(); }
Foo(int i) : Tracker(i) {}
};
struct Bar : Tracker
{
Bar(int i) : Tracker(i) {}
};
struct Qux : Tracker
{
// needed for first param of variant
Qux() noexcept : Tracker(0) { abort(); }
Qux(int i) : Tracker(i) {}
Qux(Qux&&) = default;
Qux(const Qux&) = delete;
Qux& operator = (Qux&&) = default;
Qux& operator = (const Qux&) = default;
};
TEST(variant, match)
{
struct Sub : sexpr::Variant<Foo, Bar>
{
Sub()
: sexpr::Variant<Foo, Bar>(Foo(1))
{}
};
Sub v1;
MATCH_BEGIN (v1)
{
MATCH_DEFAULT ()
{
FAIL();
}
MATCH_CASE (Foo, f)
{
(void)f;
SUCCEED();
}
MATCH_CASE (Bar, b)
{
(void)b;
FAIL();
}
}
MATCH_END ();
v1.emplace<Bar>(2);
MATCH_BEGIN (v1)
{
MATCH_DEFAULT ()
{
FAIL();
}
MATCH_CASE (Foo, f)
{
(void)f;
FAIL();
}
MATCH_CASE (Bar, b)
{
(void)b;
SUCCEED();
}
}
MATCH_END ();
}
TEST(variant, copymove1)
{
sexpr::Variant<Qux> moveonly(Qux(3));
(void)moveonly;
}
TEST(variant, copymove2)
{
struct Move
{
Move() = default;
Move(Move&&) = default;
Move(const Move&) = delete;
Move& operator = (Move&&) = default;
Move& operator = (const Move&) = delete;
~Move() = default;
};
struct Copy
{
Copy() = default;
Copy(Copy&&) = default;
Copy(const Copy&) = default;
Copy& operator = (Copy&&) = default;
Copy& operator = (const Copy&) = default;
~Copy() = default;
};
using VarMv = sexpr::Variant<Move>;
using VarCp = sexpr::Variant<Copy>;
VarMv mv1;
VarMv mv3 = std::move(mv1);
mv1 = std::move(mv3);
VarCp cp1;
VarCp cp2 = cp1;
VarCp cp3 = std::move(cp1);
cp1 = cp2;
cp1 = std::move(cp3);
}
} // namespace tmwa
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