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TypeError: Found non-callable @@iterator raised in a wired condition (I can't summarize it) #2413

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07akioni opened this issue Oct 18, 2020 · 0 comments · Fixed by #2419
Closed

TypeError: Found non-callable @@iterator raised in a wired condition (I can't summarize it) #2413

07akioni opened this issue Oct 18, 2020 · 0 comments · Fixed by #2419
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🐞 bug Something isn't working

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@07akioni
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07akioni commented Oct 18, 2020 •
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Version

3.0.1

Reproduction link

https://codesandbox.io/s/vue3-render-bug-5h0yk?file=/src/App.vue

image

The reproduction is extract from my real-world project. It seems vNode is passed to key.

To make it rendered, you have multiple choices.

  1. comment any of <outer /> or <x-button />
  2. remove the empty object {} inside Button.vue's mixin
  3. remove the wrapper <template /> in Inner.vue

Steps to reproduce

follow the link

What is expected?

it should render

What is actually happening?

error raised
@posva posva added the 🐞 bug Something isn't working label Oct 18, 2020
@07akioni 07akioni changed the title TypeError: Found non-callable @@iterator raised in a wired condition (I can't summarize the condition) TypeError: Found non-callable @@iterator raised in a wired condition (I can't summarize it) Oct 18, 2020
@zhangzhonghe zhangzhonghe mentioned this issue Oct 18, 2020
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yyx990803 pushed a commit that referenced this issue Oct 19, 2020
@zhangzhonghe
fix(runtime-core): avoid mutating EMPTY_ARR when setting dev root (#2419
edd49dc 
)

also freeze EMPTY_ARR in dev

fix #2413
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fix(runtime-core): EMPTY_ARR should be frozen to prevent changes
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@posva @07akioni