src/emdawnwebgpu/InitOnlySample.cpp

// Copyright 2025 The Dawn & Tint Authors
//
// 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.

// Standalone sample that only initializes a device, to test
// dead-code-elimination of the rest of the library.

#include <webgpu/webgpu_cpp.h>

#include <utility>

int main() {
    auto instance = wgpu::CreateInstance();

    wgpu::Adapter adapter = nullptr;
    instance.WaitAny(
        instance.RequestAdapter(nullptr, wgpu::CallbackMode::AllowSpontaneous,
                                [&adapter](wgpu::RequestAdapterStatus, wgpu::Adapter a,
                                           wgpu::StringView) { adapter = std::move(a); }),
        UINT64_MAX);

    instance.WaitAny(
        adapter.RequestDevice(nullptr, wgpu::CallbackMode::AllowSpontaneous,
                              [](wgpu::RequestDeviceStatus, wgpu::Device, wgpu::StringView) {}),
        UINT64_MAX);
}