lean-ja / lean-ja/lean-by-example
IO アクションが第一級であることのメリット
Open
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メモ
- Dominant language
- Lean
- Stars
- 188
- Forks
- 15
- Avg merge
- 9h 8m
- Merged PRs (30d)
- 6
Description
関数がIOアクションを返り値にすることが許される。
したがって、たとえば「入力の定義を与えられたら、それを受け取ってパースする関数を返す」ような関数を書ける
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue proposes explaining why IO actions can be first-class values in Lean, including a function that returns a parser after receiving an input definition. Review the repository’s existing examples and documentation structure, then add a concise explanation and example in the appropriate location; done when the benefit and example are clear.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100