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Wasteful formatting of type family with injectivity constraint #482

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blackgnezdo opened this issue Dec 16, 2019 · 0 comments · Fixed by #506
Closed

Wasteful formatting of type family with injectivity constraint #482

blackgnezdo opened this issue Dec 16, 2019 · 0 comments · Fixed by #506
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style Nitpicking and things related to purely visual aspect for formatting.

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@blackgnezdo
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blackgnezdo commented Dec 16, 2019 •
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Given this input:

type family Foo (cv :: Bar)
    = result | result -> cv where
  Foo '[] = Baz

ormolu (built at 9dbba53) produces this output:

type family
  Foo (cv :: Bar) =
    result
    | result -> cv where
  Foo '[] = Baz

4 lines seems excessive for this.

FYI, @judah
@mrkkrp mrkkrp added the style Nitpicking and things related to purely visual aspect for formatting. label Dec 16, 2019
@mrkkrp mrkkrp mentioned this issue Feb 1, 2020
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More compact rendering of type family injectivity constraints tweag/ormolu
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@mrkkrp @blackgnezdo