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perf(ivy): don't relink the whole tree when TNode exists #30511

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perf(ivy): don't relink the whole tree when TNode exists #30511

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20 changes: 9 additions & 11 deletions packages/core/src/render3/instructions/shared.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -271,18 +271,16 @@ export function createNodeAtIndex(
const tParentNode = parentInSameView ? parent as TElementNode | TContainerNode : null;

tNode = tView.data[adjustedIndex] = createTNode(tParentNode, type, adjustedIndex, name, attrs);
}

// Now link ourselves into the tree.
// We need this even if tNode exists, otherwise we might end up pointing to unexisting tNodes when
// we use i18n (especially with ICU expressions that update the DOM during the update phase).
if (previousOrParentTNode) {
if (isParent && previousOrParentTNode.child == null &&
(tNode.parent !== null || previousOrParentTNode.type === TNodeType.View)) {
// We are in the same view, which means we are adding content node to the parent view.
previousOrParentTNode.child = tNode;
} else if (!isParent) {
previousOrParentTNode.next = tNode;
// Now link ourselves into the tree.
if (previousOrParentTNode) {
if (isParent && previousOrParentTNode.child == null &&
(tNode.parent !== null || previousOrParentTNode.type === TNodeType.View)) {
// We are in the same view, which means we are adding content node to the parent view.
previousOrParentTNode.child = tNode;
} else if (!isParent) {
previousOrParentTNode.next = tNode;
}
}
}

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