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

PR Close #30511
This commit is contained in:
Olivier Combe 2019-05-16 14:42:58 +02:00 committed by Jason Aden
parent 79903b1842
commit f2ae452f01
1 changed files with 9 additions and 11 deletions
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4
packages/core/src/render3/instructions/shared.ts
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@ -271,11 +271,8 @@ export function createNodeAtIndex(
const tParentNode = parentInSameView ? parent as TElementNode | TContainerNode : null; const tParentNode = parentInSameView ? parent as TElementNode | TContainerNode : null;
tNode = tView.data[adjustedIndex] = createTNode(tParentNode, type, adjustedIndex, name, attrs); tNode = tView.data[adjustedIndex] = createTNode(tParentNode, type, adjustedIndex, name, attrs);
}
// Now link ourselves into the tree. // 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 (previousOrParentTNode) {
if (isParent && previousOrParentTNode.child == null && if (isParent && previousOrParentTNode.child == null &&
(tNode.parent !== null || previousOrParentTNode.type === TNodeType.View)) { (tNode.parent !== null || previousOrParentTNode.type === TNodeType.View)) {
@ -285,6 +282,7 @@ export function createNodeAtIndex(
previousOrParentTNode.next = tNode; previousOrParentTNode.next = tNode;
} }
} }
}
if (tView.firstChild == null) { if (tView.firstChild == null) {
tView.firstChild = tNode; tView.firstChild = tNode;