Component rendering in production build but not in development

[parthibd]

Version

2.6.14

Reproduction link

http://localhost:8080/

Steps to reproduce

Just replace the vue dev build library with vue production build library.

What is expected?

Component should render in dev build .

What is actually happening?

High CPU usage and component is not rendering

---

When I do a production build , the app just works fine but in dev build the whole page goes unresponsive with high CPU usage. And it's related to just one component.

I am unable to show you a minimal reproduction since it's happening only in development but not in production :(

[parthibd]

Update:

The issue seems to be this line

vue/src/compiler/codeframe.js

Line 16 in 7094fc0

for (let j = i - range; j <= i + range || end > count; j++) {

It's was stuck in an infinite loop. I do not experience with the compiler codebase so I am not sure if it's the only reason for my bug.

[parthibd]

Related:

#10547
#10553

[parthibd]

Seems to be addressed in Vue 3 but not Vue 2

vuejs/core#3987

[parthibd]

@posva @yyx990803

[posva]

Open a new issue with an actual reproduction. Otherwise we can't do much