Angular: Get reference to parent component when being content-projected

I can only see two ways (except DOM hacking):

1. Switch to using templates. Ticket is still open: 14935. Currently it is impossible to override injector in viewContainerRef.createEmbeddedView, however there is option to pass context information (example context-parameter-in-angular, or use NgTemplateOutlet).
2. Use DI to be able to find projected child components and call their methods. Each child component provides itself using common token {provide: Token, useExisting: forwardRef(() => Child)}, it allows to use @ContentChildren(Token) and get list of all projected children, and call any method/setter.