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3e6137c8ec
We've implemented UTF-8/UTF-16 string encoding conversions in multiple places, from FML to //flutter/shell/platform/common, to the individual embedders. This migrates these conversions to FML and adds tests. Windows APIs use wchar_t-based strings and as a result, we continue to keep Windows-specific functions in fml/platform/win/wstring_conversion.h. We break out string_conversions into its own source set since FML brings with it some Dart dependencies (e.g. dart_timestamp_provider.cc) that are unused by some targets such as uwptool.exe in the Windows UWP embedding. Issue: https://github.com/flutter/flutter/issues/98061
36 lines
1001 B
C++
36 lines
1001 B
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/fml/string_conversion.h"
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#include <codecvt>
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#include <locale>
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#include <string>
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#include "flutter/fml/build_config.h"
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#if defined(FML_OS_WIN)
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// TODO(naifu): https://github.com/flutter/flutter/issues/98074
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// Eliminate this workaround for a link error on Windows when the underlying
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// bug is fixed.
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std::locale::id std::codecvt<char16_t, char, _Mbstatet>::id;
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#endif // defined(FML_OS_WIN)
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namespace fml {
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using Utf16StringConverter =
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std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>;
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std::string Utf16ToUtf8(const std::u16string_view string) {
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Utf16StringConverter converter;
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return converter.to_bytes(string.data());
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}
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std::u16string Utf8ToUtf16(const std::string_view string) {
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Utf16StringConverter converter;
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return converter.from_bytes(string.data());
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}
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} // namespace fml
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