facebookarchive/atom-ide-ui

Allow code format providers to return null to 'fall through'

Open

#26 创建于 2017年9月13日

在 GitHub 查看
 (1 评论) (0 反应) (0 负责人)JavaScript (937 star) (110 fork)batch import
code formatenhancementhelp wanted

描述

Code format providers are currently forced to return something: https://github.com/facebook-atom/atom-ide-ui/blob/master/modules/atom-ide-ui/pkg/atom-ide-code-format/lib/types.js

However, this makes it difficult to have multiple formatting providers for the same document, since we only use the one with the highest priority.

Instead, we should use ProviderRegistry.getAllProvidersForEditor (e.g. on https://github.com/facebook-atom/atom-ide-ui/blob/master/modules/atom-ide-ui/pkg/atom-ide-code-format/lib/CodeFormatManager.js#L257) and take the first one with a non-nullable result.

cc @damieng

贡献者指南

技术栈
javascript
领域
developer experiencetooling
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
Understanding of Atom IDE plugin architectureFamiliarity with ProviderRegistry
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
40
研究方向
This issue suggests modifying CodeFormatManager.js to use ProviderRegistry.getAllProvidersForEditor and iterate through providers, taking the first non null result. The change is localized to the module referenced in the issue. First, understand the current flow in CodeFormatManager.js at line 257 and the types.js file. Then implement fallback logic as described.