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fix(jsx-directive): use <Fragment> instead of <> to support key #954

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fix(jsx-directive): use <Fragment> instead of <> to support key #954

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@zhiyuanzmj zhiyuanzmj commented May 22, 2025 •
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Description

Before

<template v-for={i in 4} key={i}>{i}</template> 
// compile to
{__MACROS_renderList(4, (i) => < key={i}> // error
  {i}
</>)}

Before

<template v-for={i in 4} key={i}>{i}</template> 
// compile to
{__MACROS_renderList(4, (i) => <_Fragment key={i}>
  {i}
</_Fragment>)}

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@dosubot dosubot bot added the size:M This PR changes 30-99 lines, ignoring generated files. label May 22, 2025
zhiyuanzmj
zhiyuanzmj commented May 22, 2025
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packages/jsx-directive/src/core/v-for.ts
/**
* https://github.com/vuejs/babel-plugin-jsx/blob/main/packages/babel-plugin-jsx/src/utils.ts#L37
*
* Because the __MACROS_Fragment tag is a component in vue-jsx, the children will be treated as a slot,
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@zhiyuanzmj zhiyuanzmj May 22, 2025 •
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I'm not sure whether we should add a importFragmentHelperFn for v-for.
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It should be resolved in vue-jsx, waiting the vuejs/babel-plugin-jsx#762 to merge.

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commit: e3e81ff

@zhiyuanzmj zhiyuanzmj requested a review from sxzz May 23, 2025 11:53
@zhiyuanzmj zhiyuanzmj mentioned this pull request May 23, 2025
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