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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/eval/eval/tensor_function.h>
namespace vespalib::eval {
/**
* Tensor function for the dot product between the expansion of two 1d
* sparse tensors and a 2d sparse tensor.
*/
class Sparse112DotProduct : public tensor_function::Node
{
private:
Child _a;
Child _b;
Child _c;
public:
Sparse112DotProduct(const TensorFunction &a_in,
const TensorFunction &b_in,
const TensorFunction &c_in);
InterpretedFunction::Instruction compile_self(const ValueBuilderFactory &factory, Stash &stash) const override;
bool result_is_mutable() const override { return true; }
void push_children(std::vector<Child::CREF> &children) const final override;
void visit_children(vespalib::ObjectVisitor &visitor) const final override;
static const TensorFunction &optimize(const TensorFunction &expr, Stash &stash);
};
} // namespace
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