src/tint/lang/wgsl/ast/interpolate_attribute.cc

// Copyright 2021 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.

#include "src/tint/lang/wgsl/ast/interpolate_attribute.h"

#include <string>

#include "src/tint/lang/core/interpolation.h"
#include "src/tint/lang/wgsl/ast/builder.h"
#include "src/tint/lang/wgsl/ast/clone_context.h"

TINT_INSTANTIATE_TYPEINFO(tint::ast::InterpolateAttribute);

namespace tint::ast {

InterpolateAttribute::InterpolateAttribute(GenerationID pid,
                                           NodeID nid,
                                           const Source& src,
                                           core::Interpolation interp)
    : Base(pid, nid, src), interpolation(interp) {}

InterpolateAttribute::~InterpolateAttribute() = default;

std::string InterpolateAttribute::Name() const {
    return "interpolate";
}

const InterpolateAttribute* InterpolateAttribute::Clone(CloneContext& ctx) const {
    // Clone arguments outside of create() call to have deterministic ordering
    auto src = ctx.Clone(source);
    return ctx.dst->create<InterpolateAttribute>(src, interpolation);
}

}  // namespace tint::ast