3e0aacc8b5
Spans are more flexible and can be constructed from any contiguous container (such as small_vector), or a subrange of such a container. This can save allocations, so change the signature to accept a span. Spans cannot be constructed from std::initializer_list, so one such call site is changed to use construct a span directly from the single argument.
33 lines
675 B
C++
33 lines
675 B
C++
/*
|
|
* Copyright (C) 2014-present ScyllaDB
|
|
*
|
|
* Modified by ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "bytes.hh"
|
|
#include "function.hh"
|
|
#include <span>
|
|
|
|
namespace db::functions {
|
|
|
|
class scalar_function : public virtual function {
|
|
public:
|
|
/**
|
|
* Applies this function to the specified parameter.
|
|
*
|
|
* @param parameters the input parameters
|
|
* @return the result of applying this function to the parameter
|
|
* @throws InvalidRequestException if this function cannot not be applied to the parameter
|
|
*/
|
|
virtual bytes_opt execute(std::span<const bytes_opt> parameters) = 0;
|
|
};
|
|
|
|
|
|
}
|