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formatjs: concatenated strings break (unlike babel) #446

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elado opened this issue May 7, 2025 · 0 comments
Open

formatjs: concatenated strings break (unlike babel) #446

elado opened this issue May 7, 2025 · 0 comments

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@elado
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elado commented May 7, 2025 •
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Describe the bug

When having multiple literal strings concatenated, e.g.

defineMessage({
  defaultMessage: "Foo " + "Bar",
  description: "foobar",
})

(normally happens when the strings are long and span over multiple lines).

The result of the compilation is:

defineMessage({
  defaultMessage: ""
})

Repro: https://github.com/elado/swc-formatjs-bug-1

Expected behavior

The SWC plugin should behave like Babel's.
It should allow "x" + "y" inputs to defaultMessage/description and treat it like a full string.
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@elado