# nested extend

resource a
    op f(int x)
    op g()
end

resource b
    op h(int x)
    extend a
    op i()
end

resource c
    op e()
    extend b
    op j()
body c()
    int  x = 789
    e(); f(12345); g(); h(6543); i()

    proc e()  { write("hi from e",x) }
    proc f(x) { write("hi from f",x) }
    proc g()  { write("hi from g",-x) }
    proc h(y) { write("hi from h",x,y) }
    proc i()  { write("hi from i",-x) }
    proc j()  { write("hi from j",-x) }
end