[Fiber] Delete child when the key lines up but the type doesn't#8085
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gaearon merged 1 commit intofacebook:masterfrom Oct 25, 2016
Merged
[Fiber] Delete child when the key lines up but the type doesn't#8085gaearon merged 1 commit intofacebook:masterfrom
gaearon merged 1 commit intofacebook:masterfrom
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When keys line up in the beginning but the type doesn't we don't currently delete the child. We need to track that this fiber is a not a reuse and if so mark the old one for deletion.
sebmarkbage
commented
Oct 25, 2016
| // list. | ||
| existingChildren.delete( | ||
| newFiber.key === null ? newFiber.index : newFiber.key | ||
| newFiber.key === null ? newIdx : newFiber.key |
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newFiber.index will be 0 if this is a clone. The index we actually matched on is oldFiber.index which also happens to be the same as newIdx which is what we just looked up in the map.
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Gonna trust you on this one and later figure out how child reconciliation works in more detail. |
acusti
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Mar 15, 2017
When keys line up in the beginning but the type doesn't we don't currently delete the child. We need to track that this fiber is a not a reuse and if so mark the old one for deletion.
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When keys line up in the beginning but the type doesn't we don't currently delete the child. We need to track that this fiber is a not a reuse and if so mark the old one for deletion.