Allows two messages to be compared directly for equality without
generating an equals method for every generated message.

(Ports CL58125010)

Change-Id: I92ab5088539d1fd722fee7b5e28a8c825926c3b6

 - Now with 50% less '&' and 100% fewer build breakages!

Change-Id: Icf0283220f75cd14b8564b51bd55973e5b7da56b

This reverts commit 8b8481868877c9db407d04bdf4843e50d8920806.

Change-Id: I0876235b79cd7745312879d0f1b00c6d1c1a1b7a

Change-Id: Ia848d7fae9aeab89e65b00f05cee6c1e6d649d94

Allows aprotoc.exe to be cross-compiled when building the Windows SDK.

Change-Id: I7e1eec945b5578e1fe6c368b128fe1f9396f491c

The behavior of the string ctor is undefined when you pass NULL. This
is checked strictly in C++11, so fails to compile.

Change-Id: Id5e0984ad1d37f2d504f7c42ac23e52ed4a58903

It allows checking for the presence of an extension without having to
deserialize the field.

Change-Id: Id542d20274b2435b7bc2b322740e9984cb8639a1

Instead of publishing its class I chose to encapsulate the troublesome
references in equals()/hashCode() in the generated code into superclass
methods in ExtendableMessageNano.

Changed a couple of java packages in the test suite to catch this issue
easier in the future.

Change-Id: I43f88411f63bb6f3ffc8d63361f2f77bebf6220a

The current implementation of getExtension deserialises the field from bytes
and returns a new object every time. This means that changes to those objects
are reflected when the messages is serialised unless setExtension is called. It
also means that every call to getExtension and setExtension is expensive.

This change introduces a FieldData class that contains everything that's known
about the field at the time. This can be all the tag/byte[] pairs associated
with a given field or an Extension and a value object. This is so that two
messages with a repeated extension can be compared even if the extension
has been deserialised in one of them but not the other.

This change also adds FieldArray class based on SparseArray from the Android
compatibility library. This is used in ExtendableMessageNano to make lookup
of FieldDatas by their field number faster.

Implications:
* calling getExtension multiple times deserialises the field only once and
  returns the same object.
* calling setExtension doesn't cause the object to be serialised immediately,
  that only happens when the container message is serialised.
* getExtension is no longer a read-only thread-safe operation. README.txt has
  been updated to relfect that.
* comparison using equals and hashCode continues to work.

Bug: 10863158

Change-Id: I81c7cb0c73cc0611a1f7c1eabf5eed259738e8bc

Change-Id: I01921eff008a8e3f7b1fbeb653d15ff8038d3220

* commit '49512cb01065b41c0113248c2c02800de1156d50':
  You CANNOT change the global WITH_DEXPREOPT

Bug: 14380196
Change-Id: I2b9e6db081558687afd5c20c7084824dfe1bb26e

* commit 'd20f0a4260763531acf5de677e4830afe0bfc53e':
  Fix NPE when clearing an extension in nano protos

If ExtendableMessageNano doesn't have any unknown fields, trying to
clear an extension by setting it to null would throw an NPE.

Change-Id: I6abcdfcc0193de44f97b21dd6cc2f40604938a1a

This CL adds the "parcelable_messages" option. When enabled, all
generated message classes will conform to the Android Parcelable
contract. This is achieved by introducing a new parent class for
generated classes which implements the required functionality.

Since the store_unknown_fields option also makes use of a superclass,
ExtendableMessageNano, we have two versions of the new Parcelable
superclass: one extending MessageNano, and one extending
ExtendableMessageNano. These classes are otherwise identical.

As these classes depend on Android framework jars, they are not
included in the host .jar build of the nanoproto library.

Finally, add a test suite for running tests of Android-specific
functionality, as this cannot be done on a desktop JVM.

Change-Id: Icc2a257f03317e947f7078dbb9857c3286857497

Nano proto compiler normally throws an error if any service is
defined. If --ignore-services=true is set, no error is thrown and the
service is simply skipped.

Change-Id: Id82583555085cc55550d03a485d3f0189885240b

This avoids a race-condition when cachedSize is momentarily set to 0
for non-empty messages if multiple threads call getSerializedSize
(e.g. during serialization).

This is a retry of https://android-review.googlesource.com/#/c/88570/.
getSerializedSize() has been kept non-final so that messages generated
with a previous version of the compiler will not break.

Change-Id: I8d8154a10938cde579ae19c55eae55b1e70e0bda

* commit 'ce2f59915e0b41c935e3f72a2b7b71b6c19b6860':
  Revert "Don't reset cachedSize to 0 in getSerializedSize"

This reverts commit c6e12c6702ca764486f952654ba1568f00efe813.

* commit 'ec0b12c34a6329d2f98003e9102fe2d75726c797':
  Don't reset cachedSize to 0 in getSerializedSize

This avoids a race-condition when cachedSize is momentarily set to 0
for non-empty messages if multiple threads call getSerializedSize
(e.g. during serialization).

Change-Id: I15a8ded92edbf41bf1c8d787960c5bbbc8a323c5

* commit '51ef8f39de376fe71ce5d2c682abe4f974cf8074':
  Fix compile error on mac 10.9

* commit 'afc1553a9eb56eff742828c9c819eafa363cdcc9':
  Extension overhaul.