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Re: cyclic value construction ("let rec")
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Date: -- (:)
From: Pierre Weis <Pierre.Weis@i...>
Subject: Re: cyclic value construction ("let rec")
> Type "'a node" is immutable from the outside. However, exploiting the
> undocumented (good reason for this ;-) type casting features of OCaml,
> one can cheat and define an identical type within a local module -
> which is mutable!

This certainly suggests to allow the export of an immutable view of a
record type with mutable fields. This way you could do the
initialization in a safe way (no magic) using side effects, and still
export a safe immutable type to the external world.

Pierre Weis

INRIA, Projet Cristal,