fix(ivy): support static ContentChild queries (#28811)

This commit adds support for the `static: true` flag in `ContentChild`
queries. Prior to this commit, all `ContentChild` queries were resolved
after change detection ran. This is a problem for backwards
compatibility because View Engine also supported "static" queries which
would resolve before change detection.

Now if users add a `static: true` option, the query will be resolved in
creation mode (before change detection runs). For example:

```ts
@ContentChild(TemplateRef, {static: true}) template !: TemplateRef;
```

This feature will come in handy for components that need
to create components dynamically.

PR Close #28811
This commit is contained in:
Kara Erickson
2019-02-18 18:18:56 -08:00
committed by Igor Minar
parent a4638d5a81
commit 3c1a1620e3
10 changed files with 261 additions and 50 deletions

View File

@ -89,6 +89,7 @@ export const angularCoreEnv: {[name: string]: Function} = {
'ɵqueryRefresh': r3.queryRefresh,
'ɵviewQuery': r3.viewQuery,
'ɵstaticViewQuery': r3.staticViewQuery,
'ɵstaticContentQuery': r3.staticContentQuery,
'ɵloadViewQuery': r3.loadViewQuery,
'ɵcontentQuery': r3.contentQuery,
'ɵloadContentQuery': r3.loadContentQuery,