Microsoft/TypeScript

Support column limit in formatter

Open

#1,988 创建于 2015年2月9日

在 GitHub 查看
 (7 评论) (0 反应) (0 负责人)TypeScript (48,455 star) (6,726 fork)batch import
Help WantedSuggestion

描述

Currently, running the formatter (eg via the compiler API: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#pretty-printer-using-the-ls-formatter) produces code which is arbitrarily wide, for statements which are nested, complex, etc.

Our style guide requires a maximum columns, which means the formatter should take a configuration for how wide this is. Line breaks should probably be added at the highest point in the AST on the long line.

贡献者指南

技术栈
typescript
领域
tooling
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。
4
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。
over 1 week
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。
clear
前置要求
TypeScript compilerAST understandingformatter codeNode.js environment
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。
25
研究方向
Start by examining the formatting code in the TypeScript compiler, specifically in the src/services/formatting/ directory. Understand how the current formatter works by looking at the 'pretty printer' documentation (https://github.com/Microsoft/TypeScript/wiki/Using the Compiler API#pretty printer using the ls formatter). The 7 comments in the issue may provide additional context or rejected approaches. The goal is to add a configuration option for maximum column width and implement line breaking logic at the highest AST node that exceeds the limit.
Support column limit in formatter · Microsoft/TypeScript#1988 | Good First Issue