diff options
| author | sky@chromium.org <sky@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-04-05 02:40:31 +0000 |
|---|---|---|
| committer | sky@chromium.org <sky@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-04-05 02:40:31 +0000 |
| commit | aafb94168f43048379600e44a3cf6b9f7f1cb86d (patch) | |
| tree | 92b4e6e8c096cc5bbb5cd9640d58ad45bd7a36c0 | |
| parent | 97d3fe8b02e4b4e8f1bca053c79835778765e53f (diff) | |
| download | chromium_src-aafb94168f43048379600e44a3cf6b9f7f1cb86d.zip chromium_src-aafb94168f43048379600e44a3cf6b9f7f1cb86d.tar.gz chromium_src-aafb94168f43048379600e44a3cf6b9f7f1cb86d.tar.bz2 | |
Adds ScopedHandleBase::From
Intended for use when converting from a ScopedMessagePipeHandle to some Interface, eg:
ScopedXHandle::From(scoped_message_pipe_handle.Pass());
BUG=none
TEST=none
R=darin@chromium.org
Review URL: https://codereview.chromium.org/220063005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@261958 0039d316-1c4b-4281-b951-d872f2087c98
| -rw-r--r-- | mojo/public/cpp/system/core.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mojo/public/cpp/system/core.h b/mojo/public/cpp/system/core.h index 14fc900..4154ba8 100644 --- a/mojo/public/cpp/system/core.h +++ b/mojo/public/cpp/system/core.h @@ -113,6 +113,16 @@ class ScopedHandleBase { const HandleType& get() const { return handle_; } + template <typename PassedHandleType> + static ScopedHandleBase<HandleType> From( + ScopedHandleBase<PassedHandleType> other) { + MOJO_COMPILE_ASSERT( + sizeof(static_cast<PassedHandleType*>(static_cast<HandleType*>(0))), + HandleType_is_not_a_subtype_of_PassedHandleType); + return ScopedHandleBase<HandleType>( + static_cast<HandleType>(other.release().value())); + } + void swap(ScopedHandleBase& other) { handle_.swap(other.handle_); } |