| commit | de556c3132e6fa0e522729abffc2dd49aa94cc2f | [log] [tgz] |
|---|---|---|
| author | Googler <noreply@google.com> | Fri Aug 24 10:26:26 2018 -0700 |
| committer | Copybara-Service <copybara-piper@google.com> | Fri Aug 24 10:29:03 2018 -0700 |
| tree | cae62ee496ce2cad7a67b03d6123cd2fc95a95c4 | |
| parent | 16e3572cd2eba86d5f676fecb32e378d9a47f60e [diff] |
Change Artifact.equals() to early-out if hashcodes differ. java.util.HashMap.get() has an optimization where it compares the hashcode to a cached value before calling equals() on the candidate key. CompactHashSet/Map keep a table of cached hashcodes. But RegularImmutableMap only has a comment saying it assumes the objects in the collection will optimize equals() with == and hashcode as appropriate! Simplify use of Objects.equal(); none of the fields are nullable. Take getClass() out of hashcode computation. I think two different Artifact subclasses for the same path is unusual in normal operation, and I may try to exploit the pass-through hashcode in ActionInputMap. RELNOTES: None. PiperOrigin-RevId: 210117899
{Fast, Correct} - Choose two
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