[Question] No observables detected when checking in a ternary operator inside of a child parameter

[subzero911]

I use an Observer like this:

Where viewedAt is an Observable inside a Task model:

But Observer can't see it for some reason:

This error disappears though, if I do reading right in the Observer body:

Why is this line style: task.viewedAt.value == null ? styleA : styleB treated like a non-immediate context execution? Does a ternary operator implicitly unfolds into the anonymous function by the compiler?

[amondnet]

@subzero911

This is because showUnseen is not an Observable. If showUnseen is false, conditions after && are not checked.

style: false && store.viewedAt.value != null // store.viewedAt.value is not used
              ? const TextStyle()
              : const TextStyle()

style: showUnseen && store.viewedAt.value != null -> style: store.viewedAt.value != null && showUnseen