source: frontend/node_modules/tapable/tapable.d.ts

type FixedSizeArray<T extends number, U> = T extends 0
        ? void[]
        : ReadonlyArray<U> & {
                        0: U;
                        length: T;
                };
type Measure<T extends number> = T extends 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8
        ? T
        : never;
type Append<T extends any[], U> = {
        0: [U];
        1: [T[0], U];
        2: [T[0], T[1], U];
        3: [T[0], T[1], T[2], U];
        4: [T[0], T[1], T[2], T[3], U];
        5: [T[0], T[1], T[2], T[3], T[4], U];
        6: [T[0], T[1], T[2], T[3], T[4], T[5], U];
        7: [T[0], T[1], T[2], T[3], T[4], T[5], T[6], U];
        8: [T[0], T[1], T[2], T[3], T[4], T[5], T[6], T[7], U];
}[Measure<T["length"]>];
type AsArray<T> = T extends any[] ? T : [T];

declare class UnsetAdditionalOptions {
        _UnsetAdditionalOptions: true;
}
type IfSet<X> = X extends UnsetAdditionalOptions ? {} : X;

type Callback<E, T> = (error: E | null, result?: T) => void;
type InnerCallback<E, T> = (error?: E | null | false, result?: T) => void;

type FullTap = Tap & {
        type: "sync" | "async" | "promise";
        fn: Function;
};

type Tap = TapOptions & {
        name: string;
};

type TapOptions = {
        before?: string;
        stage?: number;
};

interface HookInterceptor<T, R, AdditionalOptions = UnsetAdditionalOptions> {
        name?: string;
        tap?: (tap: FullTap & IfSet<AdditionalOptions>) => void;
        call?: (...args: any[]) => void;
        loop?: (...args: any[]) => void;
        error?: (err: Error) => void;
        result?: (result: R) => void;
        done?: () => void;
        register?: (
                tap: FullTap & IfSet<AdditionalOptions>
        ) => FullTap & IfSet<AdditionalOptions>;
}

type ArgumentNames<T extends any[]> = FixedSizeArray<T["length"], string>;

declare class Hook<T, R, AdditionalOptions = UnsetAdditionalOptions> {
        constructor(args?: ArgumentNames<AsArray<T>>, name?: string);
        name: string | undefined;
        interceptors: HookInterceptor<T, R, AdditionalOptions>[];
        taps: FullTap[];
        intercept(interceptor: HookInterceptor<T, R, AdditionalOptions>): void;
        isUsed(): boolean;
        callAsync(...args: Append<AsArray<T>, Callback<Error, R>>): void;
        promise(...args: AsArray<T>): Promise<R>;
        tap(
                options: string | (Tap & IfSet<AdditionalOptions>),
                fn: (...args: AsArray<T>) => R
        ): void;
        withOptions(
                options: TapOptions & IfSet<AdditionalOptions>
        ): Omit<this, "call" | "callAsync" | "promise">;
}

export class SyncHook<
        T,
        R = void,
        AdditionalOptions = UnsetAdditionalOptions
> extends Hook<T, R, AdditionalOptions> {
        call(...args: AsArray<T>): R;
}

export class SyncBailHook<
        T,
        R,
        AdditionalOptions = UnsetAdditionalOptions
> extends SyncHook<T, R, AdditionalOptions> {}
export class SyncLoopHook<
        T,
        AdditionalOptions = UnsetAdditionalOptions
> extends SyncHook<T, void, AdditionalOptions> {}
export class SyncWaterfallHook<
        T,
        R = AsArray<T>[0],
        AdditionalOptions = UnsetAdditionalOptions
> extends SyncHook<T, R, AdditionalOptions> {}

declare class AsyncHook<
        T,
        R,
        AdditionalOptions = UnsetAdditionalOptions
> extends Hook<T, R, AdditionalOptions> {
        tapAsync(
                options: string | (Tap & IfSet<AdditionalOptions>),
                fn: (...args: Append<AsArray<T>, InnerCallback<Error, R>>) => void
        ): void;
        tapPromise(
                options: string | (Tap & IfSet<AdditionalOptions>),
                fn: (...args: AsArray<T>) => Promise<R>
        ): void;
}

export class AsyncParallelHook<
        T,
        AdditionalOptions = UnsetAdditionalOptions
> extends AsyncHook<T, void, AdditionalOptions> {}
export class AsyncParallelBailHook<
        T,
        R,
        AdditionalOptions = UnsetAdditionalOptions
> extends AsyncHook<T, R, AdditionalOptions> {}
export class AsyncSeriesHook<
        T,
        AdditionalOptions = UnsetAdditionalOptions
> extends AsyncHook<T, void, AdditionalOptions> {}
export class AsyncSeriesBailHook<
        T,
        R,
        AdditionalOptions = UnsetAdditionalOptions
> extends AsyncHook<T, R, AdditionalOptions> {}
export class AsyncSeriesLoopHook<
        T,
        AdditionalOptions = UnsetAdditionalOptions
> extends AsyncHook<T, void, AdditionalOptions> {}
export class AsyncSeriesWaterfallHook<
        T,
        R = AsArray<T>[0],
        AdditionalOptions = UnsetAdditionalOptions
> extends AsyncHook<T, R, AdditionalOptions> {}

type HookFactory<H, K = any> = (key: K) => H;

interface HookMapInterceptor<H, K = any> {
        factory?: (key: K, hook: H) => H;
}

export class HookMap<H> {
        constructor(factory: HookFactory<H>, name?: string);
        name: string | undefined;
        get(key: any): H | undefined;
        for(key: any): H;
        intercept(interceptor: HookMapInterceptor<H>): void;
}

type AnyHook = Hook<any, any>;

export class TypedHookMap<M extends Record<any, AnyHook>> {
        constructor(factory: HookFactory<M[keyof M], keyof M>, name?: string);
        name: string | undefined;
        get<K extends keyof M>(key: K): M[K] | undefined;
        for<K extends keyof M>(key: K): M[K];
        intercept(interceptor: HookMapInterceptor<M[keyof M], keyof M>): void;
}

export class MultiHook<H> {
        constructor(hooks: H[], name?: string);
        name: string | undefined;
        tap(options: string | Tap, fn?: Function): void;
        tapAsync(options: string | Tap, fn?: Function): void;
        tapPromise(options: string | Tap, fn?: Function): void;
}