feat: add bulk insert methods to ListSignal and SharedListSignal#24026
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feat: add bulk insert methods to ListSignal and SharedListSignal#24026
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Add insertAllLast, insertAllFirst, and insertAllAt to ListSignal that perform the entire batch with a single notification. Add insertAllLast and insertAllFirst to SharedListSignal using transactions for atomicity.
…bulk insert methods Extract createSignals() and insertAllAtInternal() private helpers so that insertAllLast, insertAllFirst, and insertAllAt all delegate to a single code path for signal creation and list construction.
Adds insertAllAt(Collection, ListPosition) to SharedListSignal, matching the API symmetry with ListSignal which already has insertAllAt.
Delegate insertAllFirst and insertAllLast to insertAllAt instead of duplicating the transaction and iteration logic. This removes the reverse-iterate-then-reverse-ops approach in insertAllFirst.
…ture insertAllFirst now delegates to insertAllAt(0, values), reducing the boilerplate while insertAllLast keeps its own lock block to safely compute the current size inside the lock.
The collection parameter must not be null, but individual null values within the collection are allowed when the element type permits null, consistent with the single-insert methods.
…actions Nested transaction support is tested by calling insertAllLast and insertAllFirst from within a Signal.runInTransaction block.
Covers the missing test gap where insertAllFirst with an empty collection was not verified to be a no-op.
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Add insertAllLast, insertAllFirst, and insertAllAt to ListSignal that perform the entire batch with a single notification. Add insertAllLast, insertAllFirst and insertAllAt to SharedListSignal using transactions for atomicity.