errorstate.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
#include <utility/stringutils.h>
#include <vector>
#include <string>
 
namespace nap
{
    namespace utility
    {
        class ErrorState
        {
        public:
            template<typename T>
            bool check(bool successCondition, T&& errorMessage)
            {
                if (!successCondition)
                    mErrorList.emplace_back(std::forward<T>(errorMessage));
                return successCondition;
            }
 
            template <typename... Args>
            bool check(bool successCondition, const char* format, Args&&... args)
            {
                if (!successCondition)
                    mErrorList.emplace_back(stringFormat(format, std::forward<Args>(args)...));
                return successCondition;
            }
 
            template<typename T>
            void fail(T&& errorMessage)
            {
                mErrorList.emplace_back(std::forward<T>(errorMessage));
            }
 
            template <typename... Args>
            void fail(const char* format, Args&&... args)
            {
                fail(stringFormat(format, std::forward<Args>(args)...));
            }
 
            const std::string toString() const;
 
            bool hasErrors() const { return !mErrorList.empty(); }
 
        private:
            std::vector<std::string> mErrorList;
        };
 
    }
}