reasonable-error/dist/index.d.ts

Create type-safe custom error classes with a specific reason + associated context.

export declare const createErrorClass: <ReasonContextMap extends Record<string, unknown>>() => <ClassName extends string>(className: ClassName) => Record<ClassName, {
    new <SpecificReason extends keyof ReasonContextMap>(message: string, additionalInfo: {
        reason: SpecificReason;
        cause?: Error;
    } & (ReasonContextMap[SpecificReason] extends undefined ? {} : {
        context: ReasonContextMap[SpecificReason];
    })): {
        readonly reason: SpecificReason;
        readonly context: ReasonContextMap[SpecificReason];
        name: string;
        message: string;
        stack?: string;
        cause?: unknown;
    };
}> & Record<`is${ClassName}`, (value: unknown) => value is Error & (keyof ReasonContextMap extends infer T ? T extends keyof ReasonContextMap ? T extends string ? {
    reason: T;
    context: ReasonContextMap[T];
} : never : never : never)>;
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