commit 83549088c643586aa6013d947ad2c21464a3878e
author Raph Levien <raph@google.com> Mon Jul 25 10:05:35 2016 -0700
committer Raph Levien <raph@google.com> Mon Jul 25 18:19:00 2016 +0000
tree 3484894b2a98e256d8f10c0e411e69230762381c
parent dd756c26e2a081365e9a57685419cdb6526c8a8a

Enforce consistent sizes for arrays in SpannableStringInternal

The grow logic in SpannableStringInternal#setSpan assumes that the
size of mSpanData is consistent with that of mSpans, in particular
that if the latter doesn't need to grow, neither does the former.
The copySpans() method didn't enforce this, creating an mSpanData
array only big enough to hold the data.

This patch documents the invariant in a comment and enforces it.

Bug: 30359314
Change-Id: Ie25db70a76836e97af8476a7f5c10cb4b976c1cf