github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/ui/src/util/switchExhaustiveCheck.ts (about)

     1  // Copyright 2020 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  // `switchExhaustiveCheck` function ensures that all switch cases are defined,
    12  // and default case will never occur.
    13  export const switchExhaustiveCheck = (value: never): never => {
    14    throw new Error(`Unreachable point with value: ${value} `);
    15  };