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refactor(ivy): rewrite refreshDynamicEmbeddedViews for clarity (#31839) 

PR Close #31839
This commit is contained in:
Pawel Kozlowski 2019-07-24 16:36:09 +02:00 committed by Andrew Kushnir
parent a77d0e22bf
commit e08391b333
1 changed files with 10 additions and 9 deletions
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19
packages/core/src/render3/instructions/shared.ts
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@ -1491,19 +1491,20 @@ export function createLContainer(
* by executing an associated template function.
*/
function refreshDynamicEmbeddedViews(lView: LView) {
for (let current = lView[CHILD_HEAD]; current !== null; current = current[NEXT]) {
// Note: current can be an LView or an LContainer instance, but here we are only interested
// in LContainer. We can tell it's an LContainer because its length is less than the LView
// header.
if (current[ACTIVE_INDEX] === -1 && isLContainer(current)) {
for (let i = CONTAINER_HEADER_OFFSET; i < current.length; i++) {
const dynamicViewData = current[i];
let viewOrContainer = lView[CHILD_HEAD];
while (viewOrContainer !== null) {
// Note: viewOrContainer can be an LView or an LContainer instance, but here we are only
// interested in LContainer
if (isLContainer(viewOrContainer) && viewOrContainer[ACTIVE_INDEX] === -1) {
for (let i = CONTAINER_HEADER_OFFSET; i < viewOrContainer.length; i++) {
const embeddedLView = viewOrContainer[i];
// The directives and pipes are not needed here as an existing view is only being
// refreshed.
ngDevMode && assertDefined(dynamicViewData[TVIEW], 'TView must be allocated');
renderEmbeddedTemplate(dynamicViewData, dynamicViewData[TVIEW], dynamicViewData[CONTEXT] !);
ngDevMode && assertDefined(embeddedLView[TVIEW], 'TView must be allocated');
renderEmbeddedTemplate(embeddedLView, embeddedLView[TVIEW], embeddedLView[CONTEXT] !);
}
}
viewOrContainer = viewOrContainer[NEXT];
}
}