forward-ref | A Higher Order Component for React.forwardRef | Frontend Utils library

From a comment to the question

Also - I have no problem calling member function f in member function q where f is defined after q. Can you explain why the latter example is different than the situation described in this question?

According to the C++ 20 Standard (11.4 Class members)

6 A complete-class context of a class is a

> (6.1) — function body (9.5.1),

(6.2) — default argument (9.3.3.6),

(6.3) — noexcept-specifier (14.5), or

(6.4) — default member initializer

within the member-specification of the class

So inside the complete class context the name of the function f is visible within the body of the function q.

However the inner class is declared outside the complete class context. So according to the C++ 20 Standard (6.5.1 Unqualified name lookup)

7 A name used in the definition of a class X23 outside of a complete-class context (11.4) of X shall be declared in one of the following ways:

> (7.1) — before its use in class X or be a member of a base class of X (11.8), or ...

So the name of the inner class Iterator must be declared before its using as a return type of a member function.

Instead of the name Iterator you could use for example the place holder auto as the return type.

It sounds like you have a circular dependency in your injection setup. forwardRef is there to resolve some of these types of issues as classes aren't hoisted and this can cause some type instance resolution errors. You are getting the tslint error because the style guide suggests that you restructure your app to not have dependency resolution issues rather than rely on forwardRef.

If someone has added forwardRef earlier in your code, then it is probably for a reason - so removing it will possibly give you a different error. I would try to hoist the MapComponent in the code and then remove the forwardRef declaration - as I suspect some other issue is at the root of a stalled bootstrap in this instance

You need to create and bind an object implementing ObjectIdResolver with autowired EntityManager. Jackson is clueless otherwise how to find the correct entity, since there is no relationship between the ORM implementation and de/serialization library in this case.

This resolver itself is:

Definition of API used for resolving actual Java object from Object Identifiers (as annotated using JsonIdentityInfo).

The key method is ObjectIdResolver::resolveId where you get the item to be matched by its ID using the following method:

• EntityManager::find(Class entityClass, Object primaryKey)

Sample code:

Creating a generic component as output of React.forwardRef is not directly possible¹ (see bottom for further info). There are some alternatives though - let's simplify your example a bit for illustration:

Try changing innerRef to ref, you adding innerRef property and expecting it to be valid at ref:

If there should be at least 2 tics in the string, you might use a negative lookahead to assert that there is no tictic present and start by matching and least 2 times tic

Consider the following code:

Hope this would help,

component.py