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fix(runtime-core): multiple ref elements with the same name #12268

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@tsiotska tsiotska commented Oct 25, 2024

close: #12246

The solution is more like a stub.
Idea is same to keep setting the last ref if multiple same are in template without breaking the code.
Effectively stopped the occurrence of recursion using conditional check

Added appropriate tests.
The best idea would be to set and operate via unique keys and throw a warning in dev mode that ref names should be unique for each element.
Also, would like to cautiously refactor the "if-mess" if the solution is approved.

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Size Report

Bundles

File Size Gzip Brotli
runtime-dom.global.prod.js 100 kB (+14 B) 38 kB (-1 B) 34.2 kB (+16 B)
vue.global.prod.js 159 kB (+14 B) 57.9 kB 51.4 kB (-37 B)

Usages

Name Size Gzip Brotli
createApp (CAPI only) 46.9 kB (+14 B) 18.3 kB (-1 B) 16.7 kB (+4 B)
createApp 55 kB (+14 B) 21.3 kB (-1 B) 19.4 kB (+7 B)
createSSRApp 59 kB (+14 B) 23 kB (-1 B) 20.9 kB (-9 B)
defineCustomElement 59.8 kB (+14 B) 22.8 kB (-3 B) 20.8 kB (-65 B)
overall 68.7 kB (+14 B) 26.3 kB 23.9 kB (-51 B)

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commit: 161939a

refs[ref] = value
if (canSetSetupRef(ref)) {
setupState[ref] = value
if (oldRef !== ref) {
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@edison1105 edison1105 Oct 27, 2024

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I think this solution is OK.
Is it possible to give a warning at runtime?

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Added warning at runtime.
Ensured that recursion does not occur with the Ref or Ref function type, but only with the string.

@edison1105 edison1105 added 🍰 p2-nice-to-have Priority 2: this is not breaking anything but nice to have it addressed. wait changes labels Oct 27, 2024
@tsiotska tsiotska force-pushed the fix-12246_multiple_template_refs branch from 718ef90 to dc1a91e Compare October 28, 2024 12:56
@tsiotska tsiotska force-pushed the fix-12246_multiple_template_refs branch from dc1a91e to 5e273d1 Compare October 28, 2024 13:05
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Dupliucate ref in template with v-if checking for the ref leads to a recursion error
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