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/*
* Copyright 2017 The Native Object Protocols Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBNOP_TEST_TEST_UTILITIES_H_
#define LIBNOP_TEST_TEST_UTILITIES_H_
#include <cstdint>
#include <utility>
#include <vector>
#include <nop/base/utility.h>
namespace nop {
template <typename I, typename Enabled = EnableIfIntegral<I>>
inline std::vector<std::uint8_t> Integer(I integer) {
std::vector<uint8_t> vector(sizeof(I));
const std::uint8_t* bytes = reinterpret_cast<const std::uint8_t*>(&integer);
for (std::size_t i = 0; i < sizeof(I); i++)
vector[i] = bytes[i];
return vector;
}
template <typename F,
typename Enabled = std::enable_if_t<std::is_floating_point<F>::value>>
inline std::vector<std::uint8_t> Float(F value) {
std::vector<uint8_t> vector(sizeof(F));
const std::uint8_t* bytes = reinterpret_cast<const std::uint8_t*>(&value);
for (std::size_t i = 0; i < sizeof(F); i++)
vector[i] = bytes[i];
return vector;
}
inline std::vector<std::uint8_t> Item(const std::vector<std::uint8_t>& vector) {
return vector;
}
// Only define Item for one-byte integral type. Larger integral literals must
// use Integer() explicitly.
inline auto Item(std::uint8_t value) { return Integer(value); }
inline std::vector<std::uint8_t> Item(EncodingByte prefix) {
return {static_cast<std::uint8_t>(prefix)};
}
inline auto Item(const std::string& string) {
return std::vector<std::uint8_t>(string.begin(), string.end());
}
inline auto Item(const std::wstring& string) {
return std::vector<std::uint8_t>(
reinterpret_cast<const std::uint8_t*>(&*string.begin()),
reinterpret_cast<const std::uint8_t*>(&*string.end()));
}
inline auto Item(const std::u16string& string) {
return std::vector<std::uint8_t>(
reinterpret_cast<const std::uint8_t*>(&*string.begin()),
reinterpret_cast<const std::uint8_t*>(&*string.end()));
}
inline auto Item(const std::u32string& string) {
return std::vector<std::uint8_t>(
reinterpret_cast<const std::uint8_t*>(&*string.begin()),
reinterpret_cast<const std::uint8_t*>(&*string.end()));
}
inline void Append(std::vector<std::uint8_t>* /*vector*/) {}
template <typename First, typename... Rest>
inline void Append(std::vector<std::uint8_t>* vector, First&& first,
Rest&&... rest) {
auto value = Item(std::forward<First>(first));
vector->insert(vector->end(), value.begin(), value.end());
Append(vector, std::forward<Rest>(rest)...);
}
template <typename... Args>
inline std::vector<std::uint8_t> Compose(Args&&... args) {
std::vector<uint8_t> vector;
Append(&vector, std::forward<Args>(args)...);
return vector;
}
} // namespace nop
#endif // LIBNOP_TEST_TEST_UTILITIES_H_
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