18 lines
501 B
JavaScript
18 lines
501 B
JavaScript
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//#region src/common/utilities/assertions.ts
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/** @hidden
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* @file Provides common assertion helpers which can be used to improve
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* strictness of both type checking and runtime.
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*/
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/**
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* Checks that the given value is of type `never` — the type that’s left after
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* all other cases have been removed.
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*
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* @param x A value of type `never`.
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*/
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function assertNever(x) {
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throw new Error(`Unhandled discriminated union member: ${JSON.stringify(x)}.`);
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}
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//#endregion
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exports.assertNever = assertNever; |