36 lines
890 B
C++
36 lines
890 B
C++
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <algorithm>
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#include <array>
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#include <string_view>
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namespace facebook::react {
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/**
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* Helper to allow passing string literals as template parameters.
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* https://ctrpeach.io/posts/cpp20-string-literal-template-parameters/
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*/
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template <size_t N>
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struct TemplateStringLiteral {
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/* implicit */ constexpr TemplateStringLiteral(const char (&str)[N]) {
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std::copy_n(str, N, value.data());
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}
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constexpr operator std::string_view() const {
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return {value.begin(), value.end() - 1};
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}
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// Not private, since structural types required for template parameters cannot
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// have non-punlic data members.
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std::array<char, N> value{};
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};
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} // namespace facebook::react
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