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fix(types): fix prop constructor type inference #10779

merged 1 commit into from Oct 30, 2019


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@ktsn ktsn commented Oct 30, 2019

What kind of change does this PR introduce? (check at least one)

  • Bugfix
  • Feature
  • Code style update
  • Refactor
  • Build-related changes
  • Other, please describe:

Does this PR introduce a breaking change? (check one)

  • Yes
  • No

If yes, please describe the impact and migration path for existing applications:

The PR fulfills these requirements:

If adding a new feature, the PR's description includes:

  • A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:
I found that for some reason any type in new (...args: any[]): T & object prevent to pick up prop type in the newer TypeScript version. Replacing it with never fixes the problem.

The meaning of the code is not changed as a function argument type is contravariant and never type is of bottom type, that is, the entire new (...args: never[]): T & object type accepts any constructor type having any argument types which the original code intends.

@yyx990803 yyx990803 merged commit 4821149 into vuejs:dev Oct 30, 2019
Lostlover pushed a commit to Lostlover/vue that referenced this pull request Dec 10, 2019
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2 participants