vector equations in `@mtkmodel`

[baggepinnen]

The @mtkmodel macro appears to assume that all equations are scalars:

ERROR: MethodError: Cannot `convert` an object of type Vector{Equation} to an object of type Equation
...
   @ ModelingToolkit ~/.julia/packages/ModelingToolkit/oIgbi/src/systems/model_parsing.jl:25 [inlined]

would it be possible to let the macro instead use vcat so that a statement inside the @equations block would work no matter whether it results in a scalar or a vector?

[ChrisRackauckas]

That would probably need to come after #2282.

would it be possible to let the macro instead use vcat so that a statement inside the @equations block would work no matter whether it results in a scalar or a vector?

We should be careful about accidentally flattening though.

[baggepinnen]

I see, yes we don't want to destroy proper "array equations". In my usecase, I tried to call a helper function which returned an array of scalar equations. For now, I just had to revert to the old way of manually calling ODESystem

[GHE-HS]

I bumped into the same issues as @baggepinnen when trying to use a vector of equations in the macro

@mtkmodel
    (...)
    @equation begin
        var_arrayA .~ var_arrayB
    end
end

I see that now that #2282 has been merged.
Is there a workaround you could suggest?