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haskell-src-meta is a heavyweight dependency #827

snoyberg opened this Issue Aug 23, 2018 · 0 comments


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snoyberg commented Aug 23, 2018

Sorry I'm only noticing this a year later, I realize I was pinged on #717. That PR introduced a dependency on haskell-src-meta in order to allow for parsing Haskell expressions. Unfortunately, that library introduces (via itself and dependencies) a relatively heavy compile time cost. I would like to propose that we move the Database.Persist.Sql.Raw.QQ module to a separate package so that users of persistent itself do not need to pay that cost. Any objection? Note that this would be a breaking change.

CC @felixSchl @cdepillabout @paul-rouse (commenters on the PR).

@snoyberg snoyberg closed this in 7c12ad4 Aug 28, 2018

snoyberg added a commit that referenced this issue Aug 28, 2018

Merge pull request #829 from yesodweb/separate-qq
Create separate persistent-qq (fixes #827)
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