File: span_rust.h

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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_CONTAINERS_SPAN_RUST_H_
#define BASE_CONTAINERS_SPAN_RUST_H_

#include <stdint.h>

#include "base/containers/span.h"
#include "base/rust_buildflags.h"
#include "third_party/rust/cxx/v1/crate/include/cxx.h"

#if !BUILDFLAG(BUILD_RUST_BASE_CONVERSIONS)
#error "span_rust.h included without BUILD_RUST_BASE_CONVERSIONS"
#endif

namespace base {

// Create a Rust slice from a base::span.
inline rust::Slice<const uint8_t> SpanToRustSlice(span<const uint8_t> span) {
  return rust::Slice<const uint8_t>(span.data(), span.size());
}

}  // namespace base

#endif  // BASE_CONTAINERS_SPAN_RUST_H_