回到 DrRacket 步进器 [英] Stepping back in DrRacket stepper

问题描述

尝试使用 Dr. Racket 中的步进器进行调试，但一旦出现错误，步进器的按钮就会关闭.有什么方法可以在错误发生后退一步以更好地查看错误在哪里?

Trying to debug using the stepper in Dr. Racket but as soon as the error pops up the stepper's buttons get turned off. Any way to step back after an error to better see where the bug is?

推荐答案

Stepper 的作者在这里:正如 soegaard 所说，这听起来像是一个错误，但如果没有一系列有助于重现的步骤，将很难修复.FWIW，运行时和周围的基本步进语法错误是标准发布检查的一部分.

Stepper's author here: as soegaard says, this sounds like a bug, but it will be hard to fix without a sequence of steps to help reproduce. FWIW, basic stepping in and around runtime & syntax bugs is a part of the standard release checks.

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