Index: mojo/public/cpp/bindings/struct_ptr.h |
diff --git a/mojo/public/cpp/bindings/struct_ptr.h b/mojo/public/cpp/bindings/struct_ptr.h |
deleted file mode 100644 |
index 66edb89113806fe5b28f85b4c51c159e50ed332c..0000000000000000000000000000000000000000 |
--- a/mojo/public/cpp/bindings/struct_ptr.h |
+++ /dev/null |
@@ -1,180 +0,0 @@ |
-// Copyright 2014 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_STRUCT_PTR_H_ |
-#define MOJO_PUBLIC_CPP_BINDINGS_STRUCT_PTR_H_ |
- |
-#include <cstddef> |
-#include <memory> |
-#include <new> |
- |
-#include "mojo/public/cpp/bindings/type_converter.h" |
-#include "mojo/public/cpp/environment/logging.h" |
-#include "mojo/public/cpp/system/macros.h" |
- |
-namespace mojo { |
-namespace internal { |
- |
-template <typename Struct> |
-class StructHelper { |
- public: |
- template <typename Ptr> |
- static void Initialize(Ptr* ptr) { |
- ptr->Initialize(); |
- } |
-}; |
- |
-} // namespace internal |
- |
-// Smart pointer wrapping a mojom structure or union, with move-only semantics. |
-template <typename Struct> |
-class StructPtr { |
- public: |
- StructPtr() {} |
- StructPtr(std::nullptr_t) {} |
- |
- ~StructPtr() {} |
- |
- StructPtr& operator=(std::nullptr_t) { |
- reset(); |
- return *this; |
- } |
- |
- StructPtr(StructPtr&& other) { Take(&other); } |
- StructPtr& operator=(StructPtr&& other) { |
- Take(&other); |
- return *this; |
- } |
- |
- template <typename U> |
- U To() const { |
- return TypeConverter<U, StructPtr>::Convert(*this); |
- } |
- |
- void reset() { ptr_.reset(); } |
- |
- // Tests as true if non-null, false if null. |
- explicit operator bool() const { return !!ptr_; } |
- |
- bool is_null() const { return !ptr_; } |
- |
- Struct& operator*() const { |
- MOJO_DCHECK(ptr_); |
- return *ptr_; |
- } |
- Struct* operator->() const { |
- MOJO_DCHECK(ptr_); |
- return ptr_.get(); |
- } |
- Struct* get() const { return ptr_.get(); } |
- |
- void Swap(StructPtr* other) { std::swap(ptr_, other->ptr_); } |
- |
- // Please note that calling this method will fail compilation if the value |
- // type |Struct| doesn't have a Clone() method defined (which usually means |
- // that it contains Mojo handles). |
- StructPtr Clone() const { return is_null() ? StructPtr() : ptr_->Clone(); } |
- |
- bool Equals(const StructPtr& other) const { |
- if (is_null() || other.is_null()) |
- return is_null() && other.is_null(); |
- return ptr_->Equals(*other.ptr_); |
- } |
- |
- private: |
- friend class internal::StructHelper<Struct>; |
- void Initialize() { |
- MOJO_DCHECK(!ptr_); |
- ptr_.reset(new Struct()); |
- } |
- |
- void Take(StructPtr* other) { |
- reset(); |
- Swap(other); |
- } |
- |
- std::unique_ptr<Struct> ptr_; |
- |
- MOJO_MOVE_ONLY_TYPE(StructPtr); |
-}; |
- |
-// Designed to be used when Struct is small and copyable. Unions are always |
-// InlinedStructPtr in practice. |
-template <typename Struct> |
-class InlinedStructPtr { |
- public: |
- InlinedStructPtr() : is_null_(true) {} |
- InlinedStructPtr(std::nullptr_t) : is_null_(true) {} |
- |
- ~InlinedStructPtr() {} |
- |
- InlinedStructPtr& operator=(std::nullptr_t) { |
- reset(); |
- return *this; |
- } |
- |
- InlinedStructPtr(InlinedStructPtr&& other) : is_null_(true) { Take(&other); } |
- InlinedStructPtr& operator=(InlinedStructPtr&& other) { |
- Take(&other); |
- return *this; |
- } |
- |
- template <typename U> |
- U To() const { |
- return TypeConverter<U, InlinedStructPtr>::Convert(*this); |
- } |
- |
- void reset() { |
- is_null_ = true; |
- value_. ~Struct(); |
- new (&value_) Struct(); |
- } |
- |
- // Tests as true if non-null, false if null. |
- explicit operator bool() const { return !is_null_; } |
- |
- bool is_null() const { return is_null_; } |
- |
- Struct& operator*() const { |
- MOJO_DCHECK(!is_null_); |
- return value_; |
- } |
- Struct* operator->() const { |
- MOJO_DCHECK(!is_null_); |
- return &value_; |
- } |
- Struct* get() const { return is_null() ? nullptr : &value_; } |
- |
- void Swap(InlinedStructPtr* other) { |
- std::swap(value_, other->value_); |
- std::swap(is_null_, other->is_null_); |
- } |
- |
- InlinedStructPtr Clone() const { |
- return is_null() ? InlinedStructPtr() : value_.Clone(); |
- } |
- bool Equals(const InlinedStructPtr& other) const { |
- if (is_null() || other.is_null()) |
- return is_null() && other.is_null(); |
- return value_.Equals(other.value_); |
- } |
- |
- private: |
- friend class internal::StructHelper<Struct>; |
- void Initialize() { is_null_ = false; } |
- |
- void Take(InlinedStructPtr* other) { |
- reset(); |
- Swap(other); |
- } |
- |
- mutable Struct value_; |
- bool is_null_; |
- |
- MOJO_MOVE_ONLY_TYPE(InlinedStructPtr); |
-}; |
- |
-} // namespace mojo |
- |
-#endif // MOJO_PUBLIC_CPP_BINDINGS_STRUCT_PTR_H_ |