Multiple inheritance and array types

[HansOlsson]

From Stefan Vorkoetter:

Consider the following:

  model M
    // Declare a pair of simple classes.
    class T Real t; end T;
    class U Real u; end U;

    // Now create a pair of array types.
    type TVec2 = T[2];
    type UVec3 = U[3];

    // This new class extends both array types.
    class V
        extends TVec2;
        extends UVec3;
    end V;

    // What is the dimension of v?
    V v;
end M;

[HansOlsson]

Comment from Hans:

Should probably prohibit mixing classes with array dimensions (and types) with any other contents - including other components, types or classes with array dimensions.

[dietmarw]

Decision from 57th Modelica Design Meeting:

Not allowed currently (but very hidden). Proposal is to make it visible and slightly extend and clarify.
Hans will include it in the 3.1 specification.

[HansOlsson]

Correct in 3.1 draft.