1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_STRING_TRAITS_STRING16_H_
6 #define MOJO_PUBLIC_CPP_BINDINGS_STRING_TRAITS_STRING16_H_
7 
8 #include "base/strings/string16.h"
9 #include "mojo/public/cpp/bindings/string_traits.h"
10 
11 namespace mojo {
12 
13 template <>
14 struct StringTraits<base::string16> {
15   static bool IsNull(const base::string16& input) {
16     // base::string16 is always converted to non-null mojom string.
17     return false;
18   }
19 
20   static void SetToNull(base::string16* output) {
21     // Convert null to an "empty" base::string16.
22     output->clear();
23   }
24 
25   static void* SetUpContext(const base::string16& input);
26   static void TearDownContext(const base::string16& input, void* context);
27 
28   static size_t GetSize(const base::string16& input, void* context);
29   static const char* GetData(const base::string16& input, void* context);
30 
31   static bool Read(StringDataView input, base::string16* output);
32 };
33 
34 }  // namespace mojo
35 
36 #endif  // MOJO_PUBLIC_CPP_BINDINGS_STRING_TRAITS_STRING16_H_
37