Implement Data.ByteString.Lazy.compareLength #300
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Bodigrim
reviewed
Oct 8, 2020
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Almost there! We can also benefit from rewrite rules, similar to Do not forget to re-export this function from |
gutjuri
commented
Oct 10, 2020
gutjuri
commented
Oct 10, 2020
gutjuri
changed the title
Bodigrim
approved these changes
Oct 10, 2020
sjakobi
reviewed
Oct 12, 2020
sjakobi
reviewed
Oct 15, 2020
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@gutjuri merged, thanks! |
vdukhovni
reviewed
Oct 24, 2020
Comment on lines
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| -- Required for rewrite rules for 'compareLength' | ||
| negateOrdering :: Ordering -> Ordering | ||
| negateOrdering LT = GT | ||
| negateOrdering EQ = EQ | ||
| negateOrdering GT = LT | ||
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This function looks redundant to me, it is just compare EQ.
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Should I open a miniature pull request to delete negateOrdering and replace its call site with compare EQ?
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Yes, much appreciated. Could you please also combine all rules for compareLength under a single RULES pragma?
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related to #298
I tested the function in GHCi.
Unfortunately I do not yet understand how to add tests to the testsuite.
I'd be great if someone could give me a point in the right direction on where to add tests.
Concerning the documentation: I described the compareLength as being O(n) (where n is the length of the ByteString). This is a bit imprecise, because it neglects the
Intparameter entirely. However, I was not sure on how to refer to this parameter in the documentation.