[bug] createComponent singleRoot check should not be true when it has v-for

[yyx990803]

Given this

<Comp v-for="i in 10000" />

Current codegen (the 4th argument true indicates a child component that is also the root of the parent):

return ((_ctx) => {
  const n0 = _createFor(() => (10000), (_ctx0) => {
    const n2 = _createComponent(Comp, null, null, true)
    return n2
  })
  return n0
})()

Expected:

return ((_ctx) => {
  const n0 = _createFor(() => (10000), (_ctx0) => {
-   const n2 = _createComponent(Comp, null, null, true)
+   const n2 = _createComponent(Comp)
    return n2
  })
  return n0
})()

[LittleSound]

Has it been fixed?

[runyasak]

I've noticed that if there is only a single root element, the fourth argument is included.
However, if there are multiple elements, just simply add a single <div />, there is only one argument which aligns with our expectations.

If I’m mistaken or misunderstanding something, please let me know.

Single Element

Multiple Elements

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Would it be possible to assign this issue to me? I’d love to contribute as soon as possible.

[runyasak]

@LittleSound I have created a PR to resolve this issue, but it is still a work in progress.
Please review my PR: #305.