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Some optimizations for union formation #521

Merged

JelleZijlstra merged 1 commit into master from optimize

Apr 13, 2022

Contributor

JelleZijlstra commented Apr 13, 2022

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          Some optimizations for union formation

487a3fe

JelleZijlstra commented

View reviewed changes

pyanalyze/value.py

                           try:
                               # Don't readd it to preserve original ordering.
                               if subval not in hashable_vals:
                                   hashable_vals[subval] = None
                           except Exception:
                               unhashable_vals.append(subval)
                   existing = list(hashable_vals) + unhashable_vals
-                  num = len(existing)
+                  reachabilities = [_is_unreachable(val) for val in existing]

Contributor Author

JelleZijlstra Apr 13, 2022

This defers the _is_unreachable call until after we have deduplicated the values, so we don't call it repeatedly if we have lots of duplicates.

JelleZijlstra merged commit 0f995f4 into master

JelleZijlstra deleted the optimize branch

April 13, 2022 18:45

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