AUI Framework  master
Cross-platform base for C++ UI apps
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Signature.h
    1/*
    2 * AUI Framework - Declarative UI toolkit for modern C++20
    3 * Copyright (C) 2020-2025 Alex2772 and Contributors
    4 *
    5 * SPDX-License-Identifier: MPL-2.0
    6 *
    7 * This Source Code Form is subject to the terms of the Mozilla Public
    8 * License, v. 2.0. If a copy of the MPL was not distributed with this
    9 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   10 */
   11
   12#pragma once
   13
   14#include "Converter.h"
   15
   16namespace aui::jni {
   17
   18    template<typename T>
   19    struct signature;
   20
   21    template<aui::jni::convertible T>
   22    struct signature<T> {
   23        constexpr auto operator()() const noexcept {
   24            return Converter<std::decay_t<T>>::signature;
   25        }
   26    };
   27
   28    template<typename T>
   29    inline constexpr auto signature_v = signature<T>{}();
   30
   31    template<aui::jni::convertible Return, aui::jni::convertible ... Args>
   32    struct signature<Return(Args...)> {
   33        constexpr auto operator()() const noexcept {
   34            if constexpr (sizeof...(Args) > 0) {
   35                return AStringLiteral<'('>{} + (... + signature_v<Args>) + AStringLiteral<')'>{} + signature_v<Return>;
   36            } else {
   37                return AStringLiteral<'(', ')'>{} + signature_v<Return>;
   38            }
   39        }
   40    };
   41}
Definition Converter.h:33
Compile-time string literal.
Definition AStringLiteral.h:21
Definition Converter.h:21
Definition Signature.h:19