tree 3cd9f252d0d0bd9696856e130a8b386edb91bd26
parent 231e3afe0691e55403d297f99778736798726acb
author Robert Muir <rmuir@apache.org> 1614902292 -0500
committer Robert Muir <rmuir@apache.org> 1614902343 -0500
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LUCENE-9822: Assert that ForUtil.BLOCK_SIZE can be PFOR-encoded in a single byte

For/PFor code has BLOCK_SIZE=128 as a static final constant, with a lot
of assumptions and optimizations for that case. For example it will
encode 3 exceptions at most and optimizes the exception encoding with a
single byte.

This would not work at all if you changed the constant in the code to
something like 512, but an assertion at an early stage helps make
experimentation less painful, and better "documents" the assumption of how
the exception encoding currently works.