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Handle Syntax Error

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还没有人认领这个 Issue。

评估

难度
4/5
预计耗时
3-5 天
新手友好度
45/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
停滞
技术栈
javascript, node.js
领域
developer-experience

调研方向

首先复现生成文件的 SyntaxError，并检查 node-source-map-support 当前如何处理普通异常的 error.stack。跟踪包含生成位置的第一行堆栈，然后验证 SyntaxError 位置是否解析到原始源代码，同时不改变现有的异常处理。

由索引模型根据 Issue 内容生成。

描述

First of all thank you for providing this project! It's a great help for my current project.

Regarding this issue: I would like to request that a special case be added that handles syntax errors so that the place of the original source is displayed when there is a syntax error in the generated file.

This is not very useful for projects like coffescript, typescript… which feature their own parsers (and thus do their own syntax error reporting); however it is useful for a use case like mine in which I just copy/past js source from one file into another where the input is not strictly tested for validity.

(I am building a tool that extracts examples from documentation and executes them as tests).

E.g. my errors are correctly resolved for normal exceptions, however when an (induced) syntax error happened, the output pasted below was the output. In there you can see the syntax error indicating the location in the generated file.

This could be solved by adding a special handler for syntax errors; extracting the generated location from the first line of error.stack…

/tmp/ferrum.doctest-ferrum.doctest-6d12dfba-331b-478f-94bf-862f4569da6/examples.test.js:10                                                  [158/14653]
    const foo = 42;
    ^^^^^

SyntaxError: Unexpected token 'const'
    at wrapSafe (internal/modules/cjs/loader.js:1050:16)
    at Module._compile (internal/modules/cjs/loader.js:1098:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
    at Module.load (internal/modules/cjs/loader.js:983:32)
    at Function.Module._load (internal/modules/cjs/loader.js:891:14)
    at Module.require (internal/modules/cjs/loader.js:1023:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at /home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/lib/mocha.js:334:36
    at Array.forEach (<anonymous>)
    at Mocha.loadFiles (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/lib/mocha.js:331:14)
    at Mocha.run (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/lib/mocha.js:809:10)
    at Object.exports.singleRun (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/lib/cli/run-helpers.js:108:16)
    at exports.runMocha (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/lib/cli/run-helpers.js:142:13)
    at Object.exports.handler (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/lib/cli/run.js:292:3)
    at Object.runCommand (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/node_modules/yargs/lib/command.js:242:26)
    at Object.parseArgs [as _parseArgs] (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/node_modules/yargs/yargs.js:1087:28)
    at Object.parse (/home/karo/pr0j/adobe/ferrum.doctest/node_modules/mocha/node_modules/yargs/yargs.js:566:25)
主要语言
JavaScript
星标
2.2k
派生
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30 天内没有已合并 PR

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