| commit | 21c76f4d2861122087c5f695f441bbd012c36f9d | [log] [tgz] |
|---|---|---|
| author | Shawn O. Pearce <sop@google.com> | Fri Jun 17 09:54:49 2011 -0700 |
| committer | Shawn O. Pearce <sop@google.com> | Fri Jun 17 09:54:49 2011 -0700 |
| tree | 7ef22e646a84e5d1d052a8dada0d24d16bb689d0 | |
| parent | fe8235a9799c0e6b0d49d1d46431e232ab26324d [diff] |
Make Prolog.copyHash an IdentityHashMap The map is used only for VariableTerms that have not yet been resolved to a value. In this case the only equality that makes sense is identity equality. The identity map is faster as it always avoids the virtual hashCode() and equals() methods on the keys.