accelerator-core
Version:
[](https://travis-ci.org/furkleindustries/accelerator-core)
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text/typescript
/**
* In the original C# code, a SystemException would be thrown when passing
* null to methods expected a valid instance. Javascript has no such
* concept, but TypeScript will not allow `null` to be passed to methods
* explicitely requiring a valid type.
*
* Whenever TypeScript complain about the possibility of a `null` value,
* check the offending value and it it's null, throw this exception using
* `throwNullException(name: string)`.
*/
export class NullException extends Error{}
/**
* Throw a NullException.
* @param name a short description of the offending value (often its name within the code).
*/
export function throwNullException(name: string): never {
throw new NullException(`${name} is null or undefined`);
}