localscope.jl

function f1()
    function g()
        x = 1
        return () -> x
    end
    x = 0
    h = g()
    return h()
end

function f2()
    function g()
        x = 1
        return () -> x
    end
    h = g()
    x = 0
    return h()
end

@show f1() f2()