tree 03dcf7bae2bcc1abbc0add34b9336ef9de321cf8
parent f2632d898f19c6a299d92a5ebc6a35c1f9bd7099
author adgar <adgar@google.com> 1564515632 -0700
committer Copybara-Service <copybara-worker@google.com> 1564515683 -0700

Factor out filtering functions from universe in rdeps(u, x, 1).

For example, the query `rdeps(kind('binary', ...), //foo:bar, 1)` will be
first rewritten as `kind('binary', rdeps(..., //foo:bar, 1))`.

This rewriting is not much of an optimization on its own, but it may make the
query eligible for the RdepsToAllRdepsQueryExpressionMapper, which can rewrite
the example intermediate query as `kind('binary', allrdeps(//foo:bar, 1))`.

RELNOTES:
None.
PiperOrigin-RevId: 260773356