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// Copyright 2024 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_STRINGS_STRING_VIEW_RUST_H_
#define BASE_STRINGS_STRING_VIEW_RUST_H_
#include <stdint.h>
#include <string_view>
#include "build/build_config.h"
#include "third_party/rust/cxx/v1/cxx.h"
#if BUILDFLAG(IS_NACL)
#error "string_view_rust.h included under IS_NACL"
#endif
namespace base {
// Create a Rust str from a std::string_view. This will call std::abort
// if there is any invalid UTF8. If you're concerned about this, then
// instead use StringViewToRustSlice and convert the data to a string on
// the Rust side (or pass in a std::string).
inline rust::Str StringViewToRustStrUTF8(std::string_view string_piece) {
return rust::Str(string_piece.data(), string_piece.size());
}
// Create a Rust slice from a std::string_view. No UTF8 check is performed.
inline rust::Slice<const uint8_t> StringViewToRustSlice(
std::string_view string_piece) {
return rust::Slice<const uint8_t>(
reinterpret_cast<const uint8_t*>(string_piece.data()),
string_piece.length() * sizeof(std::string_view::value_type));
}
// Create a std::string_view from a Rust str.
inline std::string_view RustStrToStringView(rust::Str str) {
return std::string_view(str.data(), str.size());
}
} // namespace base
#endif // BASE_STRINGS_STRING_VIEW_RUST_H_
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