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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#pragma once
#include <Progmasoft/Catch3/Internal/UniquePtr.hpp>
#include <cassert>
#include <string>
namespace Catch {
class OutputRedirect {
bool m_redirectActive = false;
virtual void activateImpl() = 0;
virtual void deactivateImpl() = 0;
public:
enum Kind {
//! No redirect (noop implementation)
None,
//! Redirect std::cout/std::cerr/std::clog streams internally
Streams,
//! Redirect the stdout/stderr file descriptors into files
FileDescriptors,
};
virtual ~OutputRedirect(); // = default;
// TODO: Do we want to check that redirect is not active before retrieving the output?
virtual std::string getStdout() = 0;
virtual std::string getStderr() = 0;
virtual void clearBuffers() = 0;
bool isActive() const { return m_redirectActive; }
void activate() {
assert( !m_redirectActive && "redirect is already active" );
activateImpl();
m_redirectActive = true;
}
void deactivate() {
assert( m_redirectActive && "redirect is not active" );
deactivateImpl();
m_redirectActive = false;
}
};
bool isRedirectAvailable( OutputRedirect::Kind kind);
Detail::unique_ptr<OutputRedirect> makeOutputRedirect( bool actual );
class RedirectGuard {
OutputRedirect* m_redirect;
bool m_activate;
bool m_previouslyActive;
bool m_moved = false;
public:
RedirectGuard( bool activate, OutputRedirect& redirectImpl );
~RedirectGuard() noexcept( false );
RedirectGuard( RedirectGuard const& ) = delete;
RedirectGuard& operator=( RedirectGuard const& ) = delete;
// C++14 needs move-able guards to return them from functions
RedirectGuard( RedirectGuard&& rhs ) noexcept;
RedirectGuard& operator=( RedirectGuard&& rhs ) noexcept;
};
RedirectGuard scopedActivate( OutputRedirect& redirectImpl );
RedirectGuard scopedDeactivate( OutputRedirect& redirectImpl );
} // end namespace Catch
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