Hey everyone,

I'm busy implementing a macro whose usage looks like this:

(defentity Person
  {:name      {:type String :validator name-validator}
   :id-number {:type String :validator id-number-validator}
   :height    {:type Float  :default 0.0}
   :weight    {:type Float  :default 0.0}
   :bmi       {:type Float  :internal true}})

The macro generates a defrecord like so:

(defrecord Person [name id-number height weight bmi])

Which can later be used in the application like this:

(Person. "David" "123" 1 2 3)

Obviously the argument order is important. So my question is:

Can I rely on (keys some-literal-map) always returning the keys in the
order they were defined in the literal map? In my experiment, a map
literal will create a PersistentArrayMap which I understand has sorted
keys. Can someone confirm that this is reliable (e.g. across
implementations?)


Thanks!
David

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