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Narrow doesn't work properly on intersections with {} type #300

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DetachHead opened this issue Apr 9, 2022 · 1 comment
Closed

Narrow doesn't work properly on intersections with {} type #300

DetachHead opened this issue Apr 9, 2022 · 1 comment

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@DetachHead
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馃悶 Bug Report

Describe the bug

Reproduce the bug

declare const foo: <T>(value: Narrow<T>) => void

foo<1 & {}>(2 as 2 & {}) //no error

Expected behavior

error, because 2 & {} is not assignable to 1 & {}

Possible Solution

Screenshots

Additional context
@DetachHead DetachHead mentioned this issue Apr 9, 2022
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@DetachHead
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this is fixed in typescript 4.8 beta. so i'll close this assuming it was a typescript issue

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@DetachHead