Comments on: Fields whose type is an impure function are Evil Because I Say So http://blog.patch-tag.com/2009/03/18/fields-whose-type-is-an-impure-function-are-evil-because-i-say-so/ give your code a home Thu, 08 Dec 2011 09:25:20 +0000 hourly 1 http://wordpress.com/ By: thomashartman1 http://blog.patch-tag.com/2009/03/18/fields-whose-type-is-an-impure-function-are-evil-because-i-say-so/#comment-29 Wed, 18 Mar 2009 19:21:03 +0000 http://blog.patch-tag.com/?p=117#comment-29 jgm responded at

http://groups.google.com/group/gitit-discuss/msg/6d5c5afc5d334b52

]]> By: gwern http://blog.patch-tag.com/2009/03/18/fields-whose-type-is-an-impure-function-are-evil-because-i-say-so/#comment-28 Wed, 18 Mar 2009 03:07:24 +0000 http://blog.patch-tag.com/?p=117#comment-28 The irony, of course, is that filestore originally used typeclasses instead of records. (And before that, records…)

I forget why we changed. You’d have to ask John, he did the Wed Jan 14 12:00:43 EST 2009 patch that switched from typeclasses to records.

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