I need some help defining an interface that would kind of be a static class method in an OO language (while also having concrete instances of the contextual class with functionality in the class methods). For simplicity, let’s say I have a method, some context-defining types like Parabola or Line and a function like evaluate where I want to define evaluate with something like this evaluate(Parabola, coefs::Vector{Number}, x::Number}) = coefs[1] * x^2 + coefs[2] * x + coefs[3] and evaluate(Line, coefs::Vector{Number}, x::Number) = coefs[1] * x + coefs[2]. I know this can easily be solved in this particular case another way, but it’s just an example of the behavior.
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