fix(customFormatter): properly accessing ref value during debugger

[edison1105]

close #12946

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	100 kB	38.1 kB	34.3 kB
vue.global.prod.js	158 kB	58 kB	51.6 kB

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	46.5 kB	18.2 kB	16.7 kB
createApp	54.6 kB	21.3 kB	19.4 kB
createSSRApp	58.8 kB	23 kB	21 kB
defineCustomElement	59.4 kB	22.9 kB	20.8 kB
overall	68.6 kB	26.4 kB	24.1 kB

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commit: 52b8413

[posva]

This makes me wonder if it wasn't intentional to completely avoid calling the getter

[edison1105]

It was originally obj.value, but it was changed to the current implementation in https://github.com/vuejs/core/pull/10397/files#diff-95f4e5cf8305f906512f733429443451392894309ce012c5a70216f9e578738eL41. I think this change may not have considered the case where the value of ._value is undefined when .value is not accessed. So I think we should continue using obj.value, but not track it.

[posva]

Sounds good to me. I thought that maybe displaying undefined for a value that was never accessed before was the expected behavior

[mrleblanc101]

This is a major pain for debugging, I hope this gets merged soon

[mrleblanc101]

Yass, thanks 🙌

[mrleblanc101]

@edison1105
Can we expect this to be publish in a new version soon-ish ?
Since it's been 4 months since the last Vue path version

[edison1105]

@mrleblanc101
We are planning to release the next version