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Add smell for limitting the number of explicit imports - #1677
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This is especially helpful to contain the number of explicit imports in the codebase where a portion of people use HLS, since HLS by default uses explicit import lists, but lots of explicit imports make the codebase incredibly hard/tedious to modify for people who don't use HLS. |
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Gentle ping @zliu41, @ndmitchell |
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hints.md should be updated.
| case Map.lookup SmellManyExplicitImports sm of | ||
| Just limit -> | ||
| case ideclImportList decl of | ||
| Just (Exactly, L _ names) | length names > limit -> |
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This is inconsistent: > vs. >= (used by manyImportsHint).
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Smells weren't included in |
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| data Summary = Summary | ||
| { sBuiltinRules :: ![BuiltinHint] | ||
| , sLhsRhsRules :: ![HintRule] | ||
| , sSmells :: ![SmellHint] |
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This doesn't seem right. There are two kinds of hints: builtin hints, and configured (lhs-rhs) hints. The smell hints should be part of builtin hints. I don't see why it needs to be added as the third kind.
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I initially included them with the rest, but the setup in the table didn't make sense to me for smells when I looked at it. See below. With the other hints there are neat examples of what the code should look like comparisons, which there aren't for smells.
Including smells in with the other hints
Builtin Smell
| Hint Name | Hint | Severity |
|---|---|---|
| Too many explicit imports |
Example:
import A (x, y)Found: import A ( x, y ) |
Warning |
| Many imports |
Example:
import A; import BFound: import A import B |
Warning |
| Many arg function |
Example:
f :: Int -> Int -> Int f = undefinedFound: f :: Int -> Int -> Int |
Warning |
| Long type list |
Example:
f :: Bool -> Int -> (Int -> Proxy '[a, b])Found: f :: Bool -> Int -> (Int -> Proxy '[a, b]) |
Warning |
| Long function |
Example:
f = do
return z
where
z = do
a
b
Found:
= do a
b
|
Warning |
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It seems the other restricting hints (such as "Avoid restricted extensions") are not part of the summary. Then I think it's OK to not include the smell hints in the summary either.
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Sounds good, I've removed the summary generator edits again.
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4 participants
Fixes #1676.
Does what it says on the tin. Adds a new smell called
many explicit importsthat the user can use to limit the number of explicit imports. Extended both inline (I think that's what these are) and golden tests to include this setting.