tree cca1baef0799938780b11f7f4232bbbb15c1038d
parent 8bfadd39bbf9f06f109ef689c6371ef2b1ac14d9
author Jooyung Han <jooyung@google.com> 1583589234 +0900
committer Jooyung Han <jooyung@google.com> 1583589234 +0900

Add aidl::nullable type for nullable in AIDL

This provides source-level compatibility between new(std::optional) and
old(std::unique_ptr).

Bug: 144773267
Test: m
Change-Id: I378dbf848a51a705a9e06f9cd4b0def9728c3bff