angular 2 | @ContentChildren not populated, directive in component

问题

I'm trying to get nested directives from a parent directive with @ContentChildren, but not being populated, occurs when parent directive is placed over a component, component template has child directives.

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example 1 (@ContentChildren not populated):

https://plnkr.co/edit/Zdxp017V3zwNYTOR11dR?p=preview

example 2, works fine:

https://plnkr.co/edit/ryIomfokiO40Sw8X6Axd?p=preview

there any way to make it work example 1? or wait for "some-component" content?

thanks in advance

来源：https://stackoverflow.com/questions/39924148/angular-2-contentchildren-not-populated-directive-in-component