| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "platform/mojo/BigStringMojomTraits.h" |
| |
| #include <cstring> |
| |
| #include "base/containers/span.h" |
| #include "mojo/public/cpp/base/big_buffer.h" |
| #include "mojo/public/cpp/base/big_buffer_mojom_traits.h" |
| #include "platform/wtf/text/StringUTF8Adaptor.h" |
| |
| namespace mojo { |
| |
| // static |
| mojo_base::BigBuffer StructTraits<mojo_base::mojom::BigStringDataView, |
| WTF::String>::data(const WTF::String& input) { |
| WTF::StringUTF8Adaptor adaptor(input); |
| return mojo_base::BigBuffer( |
| base::make_span(reinterpret_cast<const uint8_t*>(adaptor.Data()), |
| adaptor.length() * sizeof(char))); |
| } |
| |
| // static |
| bool StructTraits<mojo_base::mojom::BigStringDataView, WTF::String>::Read( |
| mojo_base::mojom::BigStringDataView data, |
| WTF::String* out) { |
| mojo_base::BigBuffer buffer; |
| if (!data.ReadData(&buffer)) |
| return false; |
| size_t size = buffer.size(); |
| if (size % sizeof(char)) |
| return false; |
| // An empty |mojo_base::BigBuffer| may have a null |data()| if empty. |
| if (!size) { |
| *out = g_empty_string; |
| } else { |
| *out = WTF::String::FromUTF8(reinterpret_cast<const char*>(buffer.data()), |
| size / sizeof(char)); |
| } |
| return true; |
| } |
| |
| } // namespace mojo |
