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As discovered in #22272, dehydration of the unfolding info of a recursive definition used to involve a traversal of the definition itself, which in turn involves traversing the unfolding info. Hence, a loop. Instead, we now store enough data in the interface that we can produce the unfolding info without this traversal. See Note [Tying the 'CoreUnfolding' knot] for details. Fixes #22272 Co-authored-by:
Simon Peyton Jones <simon.peytonjones@gmail.com>
As discovered in #22272, dehydration of the unfolding info of a recursive definition used to involve a traversal of the definition itself, which in turn involves traversing the unfolding info. Hence, a loop. Instead, we now store enough data in the interface that we can produce the unfolding info without this traversal. See Note [Tying the 'CoreUnfolding' knot] for details. Fixes #22272 Co-authored-by:
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