solidity/libsolutil/Views.h

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2021-01-12 11:08:43 +00:00
/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
#pragma once
#include <range/v3/view/transform.hpp>
#include <liblangutil/Exceptions.h>
namespace solidity::util::views
{
static constexpr auto dereference = ranges::views::transform([](auto&& x) -> decltype(auto) { return *x; });
static constexpr auto dereferenceChecked = ranges::views::transform(
[](auto&& x) -> decltype(auto)
{
solAssert(x, "");
return *x;
}
);
}