src/dawn/native/webgpu/ShaderModuleWGPU.cpp

// Copyright 2025 The Dawn & Tint Authors
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#include "dawn/native/webgpu/ShaderModuleWGPU.h"

#include <utility>

#include "dawn/native/ShaderModule.h"
#include "dawn/native/webgpu/DeviceWGPU.h"

namespace dawn::native::webgpu {

// static
ResultOrError<Ref<ShaderModule>> ShaderModule::Create(
    Device* device,
    const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
    const std::vector<tint::wgsl::Extension>& internalExtensions) {
    auto desc = ToAPI(*descriptor);
    WGPUShaderModule innerShaderModule =
        device->wgpu.deviceCreateShaderModule(device->GetInnerHandle(), desc);
    DAWN_ASSERT(innerShaderModule);

    Ref<ShaderModule> shader =
        AcquireRef(new ShaderModule(device, descriptor, internalExtensions, innerShaderModule));
    shader->Initialize();
    return shader;
}

ShaderModule::ShaderModule(Device* device,
                           const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
                           std::vector<tint::wgsl::Extension> internalExtensions,
                           WGPUShaderModule innerShaderModule)
    : ShaderModuleBase(device, descriptor, std::move(internalExtensions)),
      RecordableObject(schema::ObjectType::ShaderModule),
      ObjectWGPU(device->wgpu.shaderModuleRelease) {
    mInnerHandle = innerShaderModule;

    // TODO(452840621): Make this use a chain instead of hard coded to WGSL only and handle other
    // chained structs. We need to save the entire chain here for serialization later.
    if (auto* wgslDesc = descriptor.Get<ShaderSourceWGSL>()) {
        mCode = wgslDesc->code;
    }
}

void ShaderModule::SetLabelImpl() {
    ToBackend(GetDevice())->CaptureSetLabel(this, GetLabel());
}

MaybeError ShaderModule::AddReferenced(CaptureContext& captureContext) {
    return {};
}

MaybeError ShaderModule::CaptureCreationParameters(CaptureContext& captureContext) {
    schema::ShaderModule shaderModule{{
        .code = mCode,
    }};
    Serialize(captureContext, shaderModule);
    return {};
}

}  // namespace dawn::native::webgpu