ndmitchell/hlint

Make it possible to forbid "`fromIntegral` without visible type arguments"

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#1,637 创建于 2025年2月17日

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 (9 评论) (5 反应) (0 负责人)Haskell (1,594 star) (208 fork)batch import
good first issue

描述

fromIntegral @Int16 @Int32 is refactor safe but fromIntegral is not. I want to allow the former but forbid the latter.

See https://github.com/haskell/core-libraries-committee/issues/314 for context and in particular Ad-hoc polymorphism erodes type-safety.

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tooling
议题类型
feature
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4
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clear
前置要求
Basic Haskell knowledgeFamiliarity with hlint rules
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25
研究方向
Study the existing hlint rule implementations, particularly those that inspect function applications and type arguments. The rule should detect calls to `fromIntegral` without visible type applications. Refer to the linked CLC issue for design rationale. Look at the file `hint/FromIntegral.hs` or similar in the hlint source.