How to use the inverse relation operator (~)? about dclareformps HOT 8 CLOSED

It actually only support references. Nodes that reference a single other node. You can use the parent construct to navigate to the opposite of children.

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You need the structure of the language that you want to navigate imported in your Rule aspect model. It should show in the completion menu after a '.'.

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Dit you get the ~ working?

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No, but I also didn't try that hard.

Did I get it correctly, the ~ operator is essentially the same as node.parent?
What's the big advantage of that?

I hoped for one of these:

1. A has a reference x to B, and I can get the backwards reference efficiently (might be multivalued, i.e. A -x-> B and C -x-> B, therefore ~xB is {A, C})
2. A is in the original model, and I create B with Dclare. Then ~B is A.

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Sorry for the misunderstanding, indeed the ~ is used to navigate in the opposite direction of references of nodes. Hence, not for navigating the opposite of children. What I meant is that you already can use the parent construct for that. So it is exactly what you expect.

I am still curious why it dit not work in your case. Can you give me the example?

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It's in my "DetailsBack" example, branch master, rule for IOverridable.
I want to get all Overrides that point to my IOverridable via Override.overrides.

I tried to work around it with this ugliness (it's missing the filter to find only the ones pointing to this):

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I could see it in the scope menu. I wander why you do not see it. It is named ~overrides

Also make the attribute optional, because otherwise you get an inconsistency error when it is null (which may intentionally be the case here).

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Aah, I thought it to be a prefix operator like ~this.Override::overrides.first or something.

This way, it works for me too.

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