readme update

2026-10-10 11:15:08 -05:00
parent 7e8910e5ff
commit 597c73bc89
1 changed files with 6 additions and 0 deletions
@@ -148,6 +148,12 @@ assert set(sub["D"]) == {"E"}
 assert set(sub["E"]) == {"F"}
 ```

+`subgraph()` returns an independent snapshot of the successor closure, including the seeds. Only edges whose endpoints belong to that closure are retained; incoming dependencies from outside it are excluded.
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+Unlike the earlier shared-set behavior, mutations to a subgraph do not change its parent, and later parent mutations do not change the subgraph. `sub.reverse` remains a live reverse view of the subgraph itself.
+
+Node objects and callback functions are not copied. The subgraph retains the parent's `on_add` and `on_remove` callbacks without invoking them during extraction, so any external side effects of those callbacks remain shared.
+
 ## `DAGSetView` as a Standalone Type

 `DAGSetView` can also be used directly as a mutable set wrapper.