11 lines
314 B
TypeScript
11 lines
314 B
TypeScript
import { Nullable } from "./Nullable";
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type ErrType<T> = { new(msg?: string): T }
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export function unwrap_err<T, ErrT extends Error>(result: Nullable<T>, errType: ErrType<ErrT>, errMsg?: string): T {
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if (result === null || result === undefined) {
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throw new errType(errMsg);
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}
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return result;
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}
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