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ember-material-icons

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Google Material icons for your ember-cli app

18 lines (14 loc) 554 B
export type Opaque = {} | void | null | undefined; export type Option<T> = T | null; // tslint:disable-line export type Maybe<T> = Option<T> | undefined; // tslint:disable-line export function unwrap<T>(val: Maybe<T>): T { if (val === null || val === undefined) throw new Error(`Expected value to be present`); return val; } export function expect<T>(val: Maybe<T>, message: string): T { if (val === null || val === undefined) throw new Error(message); return val; } export function unreachable(): Error { return new Error('unreachable'); }