| // Copyright 2019 The Fuchsia 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 SRC_DEVELOPER_DEBUG_ZXDB_COMMON_REF_PTR_TO_H_ |
| #define SRC_DEVELOPER_DEBUG_ZXDB_COMMON_REF_PTR_TO_H_ |
| |
| #include "src/lib/fxl/memory/ref_counted.h" |
| |
| namespace zxdb { |
| |
| // Converts a ray pointer to a reference-counted type to a RefPtr. |
| // |
| // Const and fxl::RefPtr don't play well together so this requires an awkward const_cast. Callers |
| // should take care to preserve the const expectation of the caller. |
| // |
| // In zxdb this is normally this is done for Symbol-derived classes which are const in their normal |
| // usage anyway. |
| // |
| // Example: |
| // |
| // void Foo(const Type* type) { |
| // fxl::RefPtr<Type> ref = RefPtrTo(type); |
| // ... |
| // } |
| template <typename T> |
| fxl::RefPtr<T> RefPtrTo(const T* pointer) { |
| return fxl::RefPtr<T>(const_cast<T*>(pointer)); |
| } |
| |
| } // namespace zxdb |
| |
| #endif // SRC_DEVELOPER_DEBUG_ZXDB_COMMON_REF_PTR_TO_H_ |
