tree 8559211dfd1e3702efb9d14d07a47caeb36e22ea
parent 5d4883d82c3983ce4b2d820b1bb32a320c4a3442
author Steven Moreland <smoreland@google.com> 1576543081 -0800
committer Steven Moreland <smoreland@google.com> 1576543134 -0800

libbinder_ndk Parcelable: no assume non-null write

This is in preparation for supporting @nullable parcelables. Before, for
a parcelable, P::readFromParcel always reads a one. However, this means
that from a 'read nullable parcel' method, we would need to peek the
next int to determine whether or not we want to read the full parcelable
or just return null. In order to avoid this peeking, moving the read of
this int32_t to AParcel_readParcelable. For symmetry,
AParcel_writeParcelable is also added.

Bug: 146172425
Test: atest CtsNdkBinderTestCases
Change-Id: Ie8209979bfd8a2c5b95d129025e5ba5a40c58b9e