1 files changed, 86 insertions, 0 deletions
diff --git a/chromium/mojo/public/cpp/bindings/lib/bindings_internal.h b/chromium/mojo/public/cpp/bindings/lib/bindings_internal.h
new file mode 100644
index 00000000000..6e87cbd1fb5
--- /dev/null
+++ b/chromium/mojo/public/cpp/bindings/lib/bindings_internal.h
@@ -0,0 +1,86 @@
+// Copyright 2013 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.
+
+#ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_BINDINGS_INTERNAL_H_
+#define MOJO_PUBLIC_CPP_BINDINGS_LIB_BINDINGS_INTERNAL_H_
+
+#include "mojo/public/cpp/bindings/lib/template_util.h"
+#include "mojo/public/cpp/system/core.h"
+
+namespace mojo {
+class String;
+
+namespace internal {
+template <typename T> class Array_Data;
+
+#pragma pack(push, 1)
+
+struct StructHeader {
+  uint32_t num_bytes;
+  uint32_t num_fields;
+};
+MOJO_COMPILE_ASSERT(sizeof(StructHeader) == 8, bad_sizeof_StructHeader);
+
+struct ArrayHeader {
+  uint32_t num_bytes;
+  uint32_t num_elements;
+};
+MOJO_COMPILE_ASSERT(sizeof(ArrayHeader) == 8, bad_sizeof_ArrayHeader);
+
+template <typename T>
+union StructPointer {
+  uint64_t offset;
+  T* ptr;
+};
+MOJO_COMPILE_ASSERT(sizeof(StructPointer<char>) == 8, bad_sizeof_StructPointer);
+
+template <typename T>
+union ArrayPointer {
+  uint64_t offset;
+  Array_Data<T>* ptr;
+};
+MOJO_COMPILE_ASSERT(sizeof(ArrayPointer<char>) == 8, bad_sizeof_ArrayPointer);
+
+union StringPointer {
+  uint64_t offset;
+  Array_Data<char>* ptr;
+};
+MOJO_COMPILE_ASSERT(sizeof(StringPointer) == 8, bad_sizeof_StringPointer);
+
+#pragma pack(pop)
+
+template <typename T>
+void ResetIfNonNull(T* ptr) {
+  if (ptr)
+    *ptr = T();
+}
+
+template <typename T>
+T FetchAndReset(T* ptr) {
+  T temp = *ptr;
+  *ptr = T();
+  return temp;
+}
+
+template <typename H> struct IsHandle {
+  static const bool value = IsBaseOf<Handle, H>::value;
+};
+
+template <typename T, bool move_only = IsMoveOnlyType<T>::value>
+struct WrapperTraits;
+
+template <typename T> struct WrapperTraits<T, false> {
+  typedef T DataType;
+};
+template <typename H> struct WrapperTraits<ScopedHandleBase<H>, true> {
+  typedef H DataType;
+};
+template <typename S> struct WrapperTraits<S, true> {
+  typedef typename S::Data_* DataType;
+};
+
+}  // namespace internal
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_BINDINGS_INTERNAL_H_