import { OnigScanner, OnigString } from '@shikijs/vscode-textmate';

type Awaitable<T> = T | Promise<T>;
type MaybeGetter<T> = Awaitable<MaybeModule<T>> | (() => Awaitable<MaybeModule<T>>);
type MaybeModule<T> = T | {
    default: T;
};
type MaybeArray<T> = T | T[];
type RequireKeys<T, K extends keyof T> = Omit<T, K> & Required<Pick<T, K>>;
interface Nothing {
}
/**
 * type StringLiteralUnion<'foo'> = 'foo' | string
 * This has auto completion whereas `'foo' | string` doesn't
 * Adapted from https://github.com/microsoft/TypeScript/issues/29729
 */
type StringLiteralUnion<T extends U, U = string> = T | (U & Nothing);

interface PatternScanner extends OnigScanner {
}
interface RegexEngineString extends OnigString {
}
/**
 * Engine for RegExp matching and scanning.
 */
interface RegexEngine {
    createScanner: (patterns: string[]) => PatternScanner;
    createString: (s: string) => RegexEngineString;
}
interface WebAssemblyInstantiator {
    (importObject: Record<string, Record<string, WebAssembly.ImportValue>> | undefined): Promise<WebAssemblyInstance>;
}
type WebAssemblyInstance = WebAssembly.WebAssemblyInstantiatedSource | WebAssembly.Instance | WebAssembly.Instance['exports'];
type OnigurumaLoadOptions = {
    instantiator: WebAssemblyInstantiator;
} | {
    default: WebAssemblyInstantiator;
} | {
    data: ArrayBufferView | ArrayBuffer | Response;
};
type LoadWasmOptionsPlain = OnigurumaLoadOptions | WebAssemblyInstantiator | ArrayBufferView | ArrayBuffer | Response;
type LoadWasmOptions = Awaitable<LoadWasmOptionsPlain> | (() => Awaitable<LoadWasmOptionsPlain>);
interface JavaScriptRegexEngineOptions {
    /**
     * Whether to allow invalid regex patterns.
     */
    forgiving?: boolean;
    /**
     * Cache for regex patterns.
     */
    cache?: Map<string, RegExp | Error>;
}

export type { Awaitable as A, JavaScriptRegexEngineOptions as J, LoadWasmOptions as L, MaybeArray as M, OnigurumaLoadOptions as O, PatternScanner as P, RequireKeys as R, StringLiteralUnion as S, WebAssemblyInstantiator as W, RegexEngine as a, MaybeGetter as b, MaybeModule as c, RegexEngineString as d, WebAssemblyInstance as e, LoadWasmOptionsPlain as f };