70c3a714a1
This changes how Map/Set interacts with its iterators. When the underlying table is rehashed or cleared, we create a new table (like before) but we add a reference from the old table to the new table. We also add an array describing how to transition the iterator from the old table to the new table. When Next is called on the iterator it checks if there is a newer table that it should transition to. If there is, it updates the index based on the previously recorded changes and finally changes itself to point at the new table. With these changes Map/Set no longer keeps the iterators alive. Also, as before, the iterators keep the underlying table(s) alive but not the actual Map/Set. BUG=v8:1793 LOG=Y R=mstarzinger@chromium.org, rossberg@chromium.org Review URL: https://codereview.chromium.org/289503002 Patch from Erik Arvidsson <arv@chromium.org>. git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21389 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 |
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