You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
137 lines
4.9 KiB
137 lines
4.9 KiB
/*
|
|
* Copyright (c) 2015, Intel Corporation
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation and/or
|
|
* other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#pragma once
|
|
|
|
#include <utility>
|
|
#include "Exception.hpp"
|
|
|
|
namespace parameterFramework
|
|
{
|
|
|
|
namespace details
|
|
{
|
|
|
|
static inline bool successTest(bool res)
|
|
{
|
|
return res;
|
|
}
|
|
|
|
template <class T>
|
|
static inline bool successTest(T *res)
|
|
{
|
|
return res != nullptr;
|
|
}
|
|
|
|
} // namespace details
|
|
|
|
template <class Base>
|
|
class FailureWrapper : protected Base
|
|
{
|
|
public:
|
|
/** Forward construction to base. */
|
|
template <class... Args>
|
|
FailureWrapper(Args &&... args) : Base(std::forward<Args>(args)...)
|
|
{
|
|
}
|
|
|
|
/** Wrap a const method that may fail to throw an Exception instead of
|
|
* retuning a boolean.
|
|
*
|
|
* @param[in] method (const) that return a boolean to indicate failure.
|
|
* @param[in] args parameters to call method call with. */
|
|
template <class K, class... MArgs, class... Args>
|
|
void mayFailCall(bool (K::*method)(MArgs...) const, Args &&... args) const
|
|
{
|
|
wrapCall<bool>(*this, method, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/** Wrap a method that may fail to throw an Exception instead of retuning a
|
|
* boolean.
|
|
*
|
|
* @param[in] method that return a boolean to indicate failure.
|
|
* @param[in] args parameters to call method call with. */
|
|
template <class K, class... MArgs, class... Args>
|
|
void mayFailCall(bool (K::*method)(MArgs...), Args &&... args)
|
|
{
|
|
wrapCall<bool>(*this, method, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/** Wrap a method that may indicate failure by returning a null pointer to
|
|
* throw an Exception instead of retuning a null pointer.
|
|
*
|
|
* @param[in] method that return a nullprt to indicate failure.
|
|
* @param[in] args parameters to call method call with. */
|
|
template <class K, class ReturnType, class... MArgs, class... Args>
|
|
ReturnType *mayFailCall(ReturnType *(K::*method)(MArgs...), Args &&... args)
|
|
{
|
|
return wrapCall<ReturnType *>(*this, method, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/** Wrap a const method that may indicate failure by returning a null pointer to
|
|
* throw an Exception instead of retuning a null pointer.
|
|
*
|
|
* @param[in] method that return a nullprt to indicate failure.
|
|
* @param[in] args parameters to call method call with. */
|
|
template <class K, class ReturnType, class... MArgs, class... Args>
|
|
ReturnType *mayFailCall(ReturnType *(K::*method)(MArgs...) const, Args &&... args) const
|
|
{
|
|
return wrapCall<ReturnType *>(*this, method, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/** Wrap a getter to return by value and throw an exception on failure. */
|
|
template <class K, class Value>
|
|
Value mayFailGet(bool (K::*accessor)(Value &, std::string &) const) const
|
|
{
|
|
Value value;
|
|
wrapCall<bool>(*this, accessor, value);
|
|
return value;
|
|
}
|
|
|
|
/** Wrap a setter to throw an exception on failure instead of returning a boolean. */
|
|
template <class K, class Value>
|
|
void mayFailSet(bool (K::*accessor)(const Value &, std::string &), const Value &value)
|
|
{
|
|
wrapCall<bool>(*this, accessor, value);
|
|
}
|
|
|
|
private:
|
|
template <class Ret, class I, class M, class... Args>
|
|
static Ret wrapCall(I &instance, M method, Args &&... args)
|
|
{
|
|
std::string error;
|
|
auto res = (instance.*method)(std::forward<Args>(args)..., error);
|
|
if (not details::successTest(res)) {
|
|
throw Exception(std::move(error));
|
|
}
|
|
return res;
|
|
}
|
|
};
|
|
} // namespace parameterFramework
|