25 lines
498 B
Plaintext
25 lines
498 B
Plaintext
import type {IsNever} from './is-never';
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/**
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An if-else-like type that resolves depending on whether the given type is `never`.
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@see {@link IsNever}
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@example
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```
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import type {IfNever} from 'type-fest';
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type ShouldBeTrue = IfNever<never>;
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//=> true
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type ShouldBeBar = IfNever<'not never', 'foo', 'bar'>;
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//=> 'bar'
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```
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@category Type Guard
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@category Utilities
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*/
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export type IfNever<T, TypeIfNever = true, TypeIfNotNever = false> = (
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IsNever<T> extends true ? TypeIfNever : TypeIfNotNever
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);
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