github.com/jbendotnet/noms@v0.0.0-20190904222105-c43e4293ea92/cmd/noms/splore/src/assert.js (about)

     1  // Copyright 2017 Attic Labs, Inc. All rights reserved.
     2  // Licensed under the Apache License, version 2.0:
     3  // http://www.apache.org/licenses/LICENSE-2.0
     4  
     5  // @flow
     6  
     7  export function notNull<T>(v: ?T): T {
     8    if (v !== null && v !== undefined) {
     9      return v;
    10    }
    11    throw new Error('Non-null assertion failed');
    12  }