rollup-plugin-bundle-inject/src/types/rollup.d.ts

Inject JS or CSS bundle into a template where necessary

export const VERSION: string;

export interface RollupError extends RollupLogProps {
  parserError?: Error;
  stack?: string;
  watchFiles?: string[];
}

export interface RollupWarning extends RollupLogProps {
  chunkName?: string;
  cycle?: string[];
  exporter?: string;
  exportName?: string;
  guess?: string;
  importer?: string;
  missing?: string;
  modules?: string[];
  names?: string[];
  reexporter?: string;
  source?: string;
  sources?: string[];
}

export interface RollupLogProps {
  code?: string;
  frame?: string;
  hook?: string;
  id?: string;
  loc?: {
    column: number;
    file?: string;
    line: number;
  };
  message: string;
  name?: string;
  plugin?: string;
  pluginCode?: string;
  pos?: number;
  url?: string;
}

export type SourceMapSegment =
  | [number]
  | [number, number, number, number]
  | [number, number, number, number, number];

export interface ExistingDecodedSourceMap {
  file?: string;
  mappings: SourceMapSegment[][];
  names: string[];
  sourceRoot?: string;
  sources: string[];
  sourcesContent?: string[];
  version: number;
}

export interface ExistingRawSourceMap {
  file?: string;
  mappings: string;
  names: string[];
  sourceRoot?: string;
  sources: string[];
  sourcesContent?: string[];
  version: number;
}

export type DecodedSourceMapOrMissing =
  | {
      mappings?: never;
      missing: true;
      plugin: string;
    }
  | ExistingDecodedSourceMap;

export interface SourceMap {
  file: string;
  mappings: string;
  names: string[];
  sources: string[];
  sourcesContent: string[];
  version: number;
  toString(): string;
  toUrl(): string;
}

export type SourceMapInput =
  | ExistingRawSourceMap
  | string
  | null
  | { mappings: "" };

export interface SourceDescription {
  ast?: AcornNode;
  code: string;
  map?: SourceMapInput;
  moduleSideEffects?: boolean | "no-treeshake" | null;
  syntheticNamedExports?: boolean | string;
}

export interface TransformModuleJSON {
  ast?: AcornNode;
  code: string;
  // note if plugins use new this.cache to opt-out auto transform cache
  customTransformCache: boolean;
  moduleSideEffects: boolean | "no-treeshake" | null;
  originalCode: string;
  originalSourcemap: ExistingDecodedSourceMap | null;
  resolvedIds?: ResolvedIdMap;
  sourcemapChain: DecodedSourceMapOrMissing[];
  syntheticNamedExports: boolean | string | null;
  transformDependencies: string[];
}

export interface ModuleJSON extends TransformModuleJSON {
  alwaysRemovedCode: [number, number][];
  ast: AcornNode;
  dependencies: string[];
  id: string;
  transformFiles: EmittedFile[] | undefined;
}

export interface PluginCache {
  delete(id: string): boolean;
  get<T = any>(id: string): T;
  has(id: string): boolean;
  set<T = any>(id: string, value: T): void;
}

export interface MinimalPluginContext {
  meta: PluginContextMeta;
}

export interface EmittedAsset {
  fileName?: string;
  name?: string;
  source?: string | Uint8Array;
  type: "asset";
}

export interface EmittedChunk {
  fileName?: string;
  id: string;
  implicitlyLoadedAfterOneOf?: string[];
  importer?: string;
  name?: string;
  preserveSignature?: PreserveEntrySignaturesOption;
  type: "chunk";
}

export type EmittedFile = EmittedAsset | EmittedChunk;

export type EmitAsset = (name: string, source?: string | Uint8Array) => string;

export type EmitChunk = (id: string, options?: { name?: string }) => string;

export type EmitFile = (emittedFile: EmittedFile) => string;

interface ModuleInfo {
  dynamicallyImportedIds: string[];
  dynamicImporters: string[];
  hasModuleSideEffects: boolean | "no-treeshake";
  id: string;
  implicitlyLoadedAfterOneOf: string[];
  implicitlyLoadedBefore: string[];
  importedIds: string[];
  importers: string[];
  isEntry: boolean;
  isExternal: boolean;
}

export type GetModuleInfo = (moduleId: string) => ModuleInfo;

export interface PluginContext extends MinimalPluginContext {
  addWatchFile: (id: string) => void;
  cache: PluginCache;
  /** @deprecated Use `this.emitFile` instead */
  emitAsset: EmitAsset;
  /** @deprecated Use `this.emitFile` instead */
  emitChunk: EmitChunk;
  emitFile: EmitFile;
  error: (
    err: RollupError | string,
    pos?: number | { column: number; line: number }
  ) => never;
  /** @deprecated Use `this.getFileName` instead */
  getAssetFileName: (assetReferenceId: string) => string;
  /** @deprecated Use `this.getFileName` instead */
  getChunkFileName: (chunkReferenceId: string) => string;
  getFileName: (fileReferenceId: string) => string;
  getModuleIds: () => IterableIterator<string>;
  getModuleInfo: GetModuleInfo;
  /** @deprecated Use `this.resolve` instead */
  isExternal: IsExternal;
  /** @deprecated Use `this.getModuleIds` instead */
  moduleIds: IterableIterator<string>;
  parse: (input: string, options?: any) => AcornNode;
  resolve: (
    source: string,
    importer?: string,
    options?: { skipSelf: boolean }
  ) => Promise<ResolvedId | null>;
  /** @deprecated Use `this.resolve` instead */
  resolveId: (source: string, importer?: string) => Promise<string | null>;
  setAssetSource: (
    assetReferenceId: string,
    source: string | Uint8Array
  ) => void;
  warn: (
    warning: RollupWarning | string,
    pos?: number | { column: number; line: number }
  ) => void;
}

export interface PluginContextMeta {
  rollupVersion: string;
  watchMode: boolean;
}

export interface ResolvedId {
  external: boolean;
  id: string;
  moduleSideEffects: boolean | "no-treeshake";
  syntheticNamedExports: boolean | string;
}

export interface ResolvedIdMap {
  [key: string]: ResolvedId;
}

interface PartialResolvedId {
  external?: boolean;
  id: string;
  moduleSideEffects?: boolean | "no-treeshake" | null;
  syntheticNamedExports?: boolean | string;
}

export type ResolveIdResult =
  | string
  | false
  | null
  | undefined
  | PartialResolvedId;

export type ResolveIdHook = (
  this: PluginContext,
  source: string,
  importer: string | undefined
) => Promise<ResolveIdResult> | ResolveIdResult;

export type IsExternal = (
  source: string,
  importer: string | undefined,
  isResolved: boolean
) => boolean;

export type IsPureModule = (id: string) => boolean | null | undefined;

export type HasModuleSideEffects = (id: string, external: boolean) => boolean;

type LoadResult = SourceDescription | string | null | undefined;

export type LoadHook = (
  this: PluginContext,
  id: string
) => Promise<LoadResult> | LoadResult;

export interface TransformPluginContext extends PluginContext {
  getCombinedSourcemap: () => SourceMap;
}

export type TransformResult = string | null | undefined | SourceDescription;

export type TransformHook = (
  this: TransformPluginContext,
  code: string,
  id: string
) => Promise<TransformResult> | TransformResult;

export type RenderChunkHook = (
  this: PluginContext,
  code: string,
  chunk: RenderedChunk,
  options: NormalizedOutputOptions
) =>
  | Promise<{ code: string; map?: SourceMapInput } | null>
  | { code: string; map?: SourceMapInput }
  | string
  | null;

export type ResolveDynamicImportHook = (
  this: PluginContext,
  specifier: string | AcornNode,
  importer: string
) => Promise<ResolveIdResult> | ResolveIdResult;

export type ResolveImportMetaHook = (
  this: PluginContext,
  prop: string | null,
  options: { chunkId: string; format: InternalModuleFormat; moduleId: string }
) => string | null | undefined;

export type ResolveAssetUrlHook = (
  this: PluginContext,
  options: {
    assetFileName: string;
    chunkId: string;
    format: InternalModuleFormat;
    moduleId: string;
    relativeAssetPath: string;
  }
) => string | null | undefined;

export type ResolveFileUrlHook = (
  this: PluginContext,
  options: {
    assetReferenceId: string | null;
    chunkId: string;
    chunkReferenceId: string | null;
    fileName: string;
    format: InternalModuleFormat;
    moduleId: string;
    referenceId: string;
    relativePath: string;
  }
) => string | null | undefined;

export type AddonHookFunction = (
  this: PluginContext
) => string | Promise<string>;
export type AddonHook = string | AddonHookFunction;

/**
 * use this type for plugin annotation
 * @example
 * ```ts
 * interface Options {
 * ...
 * }
 * const myPlugin: PluginImpl<Options> = (options = {}) => { ... }
 * ```
 */
export type PluginImpl<O extends object = object> = (options?: O) => Plugin;

export interface OutputBundle {
  [fileName: string]: OutputAsset | OutputChunk;
}

export interface FilePlaceholder {
  type: "placeholder";
}

export interface OutputBundleWithPlaceholders {
  [fileName: string]: OutputAsset | OutputChunk | FilePlaceholder;
}

export interface PluginHooks extends OutputPluginHooks {
  buildEnd: (this: PluginContext, err?: Error) => Promise<void> | void;
  buildStart: (
    this: PluginContext,
    options: NormalizedInputOptions
  ) => Promise<void> | void;
  load: LoadHook;
  options: (
    this: MinimalPluginContext,
    options: InputOptions
  ) => InputOptions | null | undefined;
  resolveDynamicImport: ResolveDynamicImportHook;
  resolveId: ResolveIdHook;
  transform: TransformHook;
  watchChange: (id: string) => void;
}

interface OutputPluginHooks {
  augmentChunkHash: (
    this: PluginContext,
    chunk: PreRenderedChunk
  ) => string | void;
  generateBundle: (
    this: PluginContext,
    options: NormalizedOutputOptions,
    bundle: OutputBundle,
    isWrite: boolean
  ) => void | Promise<void>;
  outputOptions: (
    this: PluginContext,
    options: OutputOptions
  ) => OutputOptions | null | undefined;
  renderChunk: RenderChunkHook;
  renderDynamicImport: (
    this: PluginContext,
    options: {
      customResolution: string | null;
      format: InternalModuleFormat;
      moduleId: string;
      targetModuleId: string | null;
    }
  ) => { left: string; right: string } | null | undefined;
  renderError: (this: PluginContext, err?: Error) => Promise<void> | void;
  renderStart: (
    this: PluginContext,
    outputOptions: NormalizedOutputOptions,
    inputOptions: NormalizedInputOptions
  ) => Promise<void> | void;
  /** @deprecated Use `resolveFileUrl` instead */
  resolveAssetUrl: ResolveAssetUrlHook;
  resolveFileUrl: ResolveFileUrlHook;
  resolveImportMeta: ResolveImportMetaHook;
  writeBundle: (
    this: PluginContext,
    options: NormalizedOutputOptions,
    bundle: OutputBundle
  ) => void | Promise<void>;
}

export type AsyncPluginHooks =
  | "buildEnd"
  | "buildStart"
  | "generateBundle"
  | "load"
  | "renderChunk"
  | "renderError"
  | "renderStart"
  | "resolveDynamicImport"
  | "resolveId"
  | "transform"
  | "writeBundle";

export type PluginValueHooks = "banner" | "footer" | "intro" | "outro";

export type SyncPluginHooks = Exclude<keyof PluginHooks, AsyncPluginHooks>;

export type FirstPluginHooks =
  | "load"
  | "renderDynamicImport"
  | "resolveAssetUrl"
  | "resolveDynamicImport"
  | "resolveFileUrl"
  | "resolveId"
  | "resolveImportMeta";

export type SequentialPluginHooks =
  | "augmentChunkHash"
  | "generateBundle"
  | "options"
  | "outputOptions"
  | "renderChunk"
  | "transform"
  | "watchChange";

export type ParallelPluginHooks =
  | "banner"
  | "buildEnd"
  | "buildStart"
  | "footer"
  | "intro"
  | "outro"
  | "renderError"
  | "renderStart"
  | "writeBundle";

interface OutputPluginValueHooks {
  banner: AddonHook;
  cacheKey: string;
  footer: AddonHook;
  intro: AddonHook;
  outro: AddonHook;
}

export interface Plugin
  extends Partial<PluginHooks>,
    Partial<OutputPluginValueHooks> {
  name: string;
}

export interface OutputPlugin
  extends Partial<OutputPluginHooks>,
    Partial<OutputPluginValueHooks> {
  name: string;
}

export interface TreeshakingOptions {
  annotations?: boolean;
  moduleSideEffects?: ModuleSideEffectsOption;
  propertyReadSideEffects?: boolean;
  /** @deprecated Use `moduleSideEffects` instead */
  pureExternalModules?: PureModulesOption;
  tryCatchDeoptimization?: boolean;
  unknownGlobalSideEffects?: boolean;
}

export interface NormalizedTreeshakingOptions {
  annotations: boolean;
  moduleSideEffects: HasModuleSideEffects;
  propertyReadSideEffects: boolean;
  tryCatchDeoptimization: boolean;
  unknownGlobalSideEffects: boolean;
}

interface GetManualChunkApi {
  getModuleIds: () => IterableIterator<string>;
  getModuleInfo: GetModuleInfo;
}
export type GetManualChunk = (
  id: string,
  api: GetManualChunkApi
) => string | null | undefined;

export type ExternalOption =
  | (string | RegExp)[]
  | string
  | RegExp
  | ((
      source: string,
      importer: string | undefined,
      isResolved: boolean
    ) => boolean | null | undefined);
export type PureModulesOption = boolean | string[] | IsPureModule;
export type GlobalsOption =
  | { [name: string]: string }
  | ((name: string) => string);
export type InputOption = string | string[] | { [entryAlias: string]: string };
export type ManualChunksOption =
  | { [chunkAlias: string]: string[] }
  | GetManualChunk;
export type ModuleSideEffectsOption =
  | boolean
  | "no-external"
  | string[]
  | HasModuleSideEffects;
export type PreserveEntrySignaturesOption =
  | false
  | "strict"
  | "allow-extension";
export type SourcemapPathTransformOption = (
  relativeSourcePath: string,
  sourcemapPath: string
) => string;

export interface InputOptions {
  acorn?: Object;
  acornInjectPlugins?: Function | Function[];
  cache?: false | RollupCache;
  context?: string;
  experimentalCacheExpiry?: number;
  external?: ExternalOption;
  /** @deprecated Use the "inlineDynamicImports" output option instead. */
  inlineDynamicImports?: boolean;
  input?: InputOption;
  /** @deprecated Use the "manualChunks" output option instead. */
  manualChunks?: ManualChunksOption;
  moduleContext?:
    | ((id: string) => string | null | undefined)
    | { [id: string]: string };
  onwarn?: WarningHandlerWithDefault;
  perf?: boolean;
  plugins?: Plugin[];
  preserveEntrySignatures?: PreserveEntrySignaturesOption;
  /** @deprecated Use the "preserveModules" output option instead. */
  preserveModules?: boolean;
  preserveSymlinks?: boolean;
  shimMissingExports?: boolean;
  strictDeprecations?: boolean;
  treeshake?: boolean | TreeshakingOptions;
  watch?: WatcherOptions | false;
}

export interface NormalizedInputOptions {
  acorn: Object;
  acornInjectPlugins: Function[];
  cache: false | undefined | RollupCache;
  context: string;
  experimentalCacheExpiry: number;
  external: IsExternal;
  /** @deprecated Use the "inlineDynamicImports" output option instead. */
  inlineDynamicImports: boolean | undefined;
  input: string[] | { [entryAlias: string]: string };
  /** @deprecated Use the "manualChunks" output option instead. */
  manualChunks: ManualChunksOption | undefined;
  moduleContext: (id: string) => string;
  onwarn: WarningHandler;
  perf: boolean;
  plugins: Plugin[];
  preserveEntrySignatures: PreserveEntrySignaturesOption;
  /** @deprecated Use the "preserveModules" output option instead. */
  preserveModules: boolean | undefined;
  preserveSymlinks: boolean;
  shimMissingExports: boolean;
  strictDeprecations: boolean;
  treeshake: false | NormalizedTreeshakingOptions;
}

export type InternalModuleFormat =
  | "amd"
  | "cjs"
  | "es"
  | "iife"
  | "system"
  | "umd";

export type ModuleFormat =
  | InternalModuleFormat
  | "commonjs"
  | "esm"
  | "module"
  | "systemjs";

export type OptionsPaths = Record<string, string> | ((id: string) => string);

export type InteropType =
  | boolean
  | "auto"
  | "esModule"
  | "default"
  | "defaultOnly";

export type GetInterop = (id: string | null) => InteropType;

export interface OutputOptions {
  amd?: {
    define?: string;
    id?: string;
  };
  assetFileNames?: string | ((chunkInfo: PreRenderedAsset) => string);
  banner?: string | (() => string | Promise<string>);
  chunkFileNames?: string | ((chunkInfo: PreRenderedChunk) => string);
  compact?: boolean;
  // only required for bundle.write
  dir?: string;
  /** @deprecated Use the "renderDynamicImport" plugin hook instead. */
  dynamicImportFunction?: string;
  entryFileNames?: string | ((chunkInfo: PreRenderedChunk) => string);
  esModule?: boolean;
  exports?: "default" | "named" | "none" | "auto";
  extend?: boolean;
  externalLiveBindings?: boolean;
  // only required for bundle.write
  file?: string;
  footer?: string | (() => string | Promise<string>);
  format?: ModuleFormat;
  freeze?: boolean;
  globals?: GlobalsOption;
  hoistTransitiveImports?: boolean;
  indent?: string | boolean;
  inlineDynamicImports?: boolean;
  interop?: InteropType | GetInterop;
  intro?: string | (() => string | Promise<string>);
  manualChunks?: ManualChunksOption;
  minifyInternalExports?: boolean;
  name?: string;
  namespaceToStringTag?: boolean;
  noConflict?: boolean;
  outro?: string | (() => string | Promise<string>);
  paths?: OptionsPaths;
  plugins?: OutputPlugin[];
  preferConst?: boolean;
  preserveModules?: boolean;
  preserveModulesRoot?: string;
  sourcemap?: boolean | "inline" | "hidden";
  sourcemapExcludeSources?: boolean;
  sourcemapFile?: string;
  sourcemapPathTransform?: SourcemapPathTransformOption;
  strict?: boolean;
  systemNullSetters?: boolean;
}

export interface NormalizedOutputOptions {
  amd: {
    define: string;
    id?: string;
  };
  assetFileNames: string | ((chunkInfo: PreRenderedAsset) => string);
  banner: () => string | Promise<string>;
  chunkFileNames: string | ((chunkInfo: PreRenderedChunk) => string);
  compact: boolean;
  dir: string | undefined;
  /** @deprecated Use the "renderDynamicImport" plugin hook instead. */
  dynamicImportFunction: string | undefined;
  entryFileNames: string | ((chunkInfo: PreRenderedChunk) => string);
  esModule: boolean;
  exports: "default" | "named" | "none" | "auto";
  extend: boolean;
  externalLiveBindings: boolean;
  file: string | undefined;
  footer: () => string | Promise<string>;
  format: InternalModuleFormat;
  freeze: boolean;
  globals: GlobalsOption;
  hoistTransitiveImports: boolean;
  indent: true | string;
  inlineDynamicImports: boolean;
  interop: GetInterop;
  intro: () => string | Promise<string>;
  manualChunks: ManualChunksOption;
  minifyInternalExports: boolean;
  name: string | undefined;
  namespaceToStringTag: boolean;
  noConflict: boolean;
  outro: () => string | Promise<string>;
  paths: OptionsPaths;
  plugins: OutputPlugin[];
  preferConst: boolean;
  preserveModules: boolean;
  preserveModulesRoot: string | undefined;
  sourcemap: boolean | "inline" | "hidden";
  sourcemapExcludeSources: boolean;
  sourcemapFile: string | undefined;
  sourcemapPathTransform: SourcemapPathTransformOption | undefined;
  strict: boolean;
  systemNullSetters: boolean;
}

export type WarningHandlerWithDefault = (
  warning: RollupWarning,
  defaultHandler: WarningHandler
) => void;
export type WarningHandler = (warning: RollupWarning) => void;

export interface SerializedTimings {
  [label: string]: [number, number, number];
}

export interface PreRenderedAsset {
  name: string | undefined;
  source: string | Uint8Array;
  type: "asset";
}

export interface OutputAsset extends PreRenderedAsset {
  fileName: string;
  /** @deprecated Accessing "isAsset" on files in the bundle is deprecated, please use "type === \'asset\'" instead */
  isAsset: true;
}

export interface RenderedModule {
  originalLength: number;
  removedExports: string[];
  renderedExports: string[];
  renderedLength: number;
}

export interface PreRenderedChunk {
  exports: string[];
  facadeModuleId: string | null;
  isDynamicEntry: boolean;
  isEntry: boolean;
  isImplicitEntry: boolean;
  modules: {
    [id: string]: RenderedModule;
  };
  name: string;
  type: "chunk";
}

export interface RenderedChunk extends PreRenderedChunk {
  code?: string;
  dynamicImports: string[];
  fileName: string;
  implicitlyLoadedBefore: string[];
  importedBindings: {
    [imported: string]: string[];
  };
  imports: string[];
  map?: SourceMap;
  referencedFiles: string[];
}

export interface OutputChunk extends RenderedChunk {
  code: string;
}

export interface SerializablePluginCache {
  [key: string]: [number, any];
}

export interface RollupCache {
  modules: ModuleJSON[];
  plugins?: Record<string, SerializablePluginCache>;
}

export interface RollupOutput {
  output: [OutputChunk, ...(OutputChunk | OutputAsset)[]];
}

export interface RollupBuild {
  cache: RollupCache | undefined;
  generate: (outputOptions: OutputOptions) => Promise<RollupOutput>;
  getTimings?: () => SerializedTimings;
  watchFiles: string[];
  write: (options: OutputOptions) => Promise<RollupOutput>;
}

export interface RollupOptions extends InputOptions {
  // This is included for compatibility with config files but ignored by rollup.rollup
  output?: OutputOptions | OutputOptions[];
}

export interface MergedRollupOptions extends InputOptions {
  output: OutputOptions[];
}

export function rollup(options: RollupOptions): Promise<RollupBuild>;

export interface ChokidarOptions {
  alwaysStat?: boolean;
  atomic?: boolean | number;
  awaitWriteFinish?:
    | {
        pollInterval?: number;
        stabilityThreshold?: number;
      }
    | boolean;
  binaryInterval?: number;
  cwd?: string;
  depth?: number;
  disableGlobbing?: boolean;
  followSymlinks?: boolean;
  ignored?: any;
  ignoreInitial?: boolean;
  ignorePermissionErrors?: boolean;
  interval?: number;
  persistent?: boolean;
  useFsEvents?: boolean;
  usePolling?: boolean;
}

export interface WatcherOptions {
  buildDelay?: number;
  chokidar?: ChokidarOptions;
  clearScreen?: boolean;
  exclude?: string | RegExp | (string | RegExp)[];
  include?: string | RegExp | (string | RegExp)[];
  skipWrite?: boolean;
}

export interface RollupWatchOptions extends InputOptions {
  output?: OutputOptions | OutputOptions[];
  watch?: WatcherOptions | false;
}

interface TypedEventEmitter<T> {
  addListener<K extends keyof T>(event: K, listener: T[K]): this;
  emit<K extends keyof T>(event: K, ...args: any[]): boolean;
  eventNames(): Array<keyof T>;
  getMaxListeners(): number;
  listenerCount(type: keyof T): number;
  listeners<K extends keyof T>(event: K): Array<T[K]>;
  off<K extends keyof T>(event: K, listener: T[K]): this;
  on<K extends keyof T>(event: K, listener: T[K]): this;
  once<K extends keyof T>(event: K, listener: T[K]): this;
  prependListener<K extends keyof T>(event: K, listener: T[K]): this;
  prependOnceListener<K extends keyof T>(event: K, listener: T[K]): this;
  rawListeners<K extends keyof T>(event: K): Array<T[K]>;
  removeAllListeners<K extends keyof T>(event?: K): this;
  removeListener<K extends keyof T>(event: K, listener: T[K]): this;
  setMaxListeners(n: number): this;
}

export type RollupWatcherEvent =
  | { code: "START" }
  | { code: "BUNDLE_START"; input: InputOption; output: readonly string[] }
  | {
      code: "BUNDLE_END";
      duration: number;
      input: InputOption;
      output: readonly string[];
      result: RollupBuild;
    }
  | { code: "END" }
  | { code: "ERROR"; error: RollupError };

export interface RollupWatcher
  extends TypedEventEmitter<{
    change: (id: string) => void;
    event: (event: RollupWatcherEvent) => void;
    restart: () => void;
  }> {
  close(): void;
}

export function watch(
  config: RollupWatchOptions | RollupWatchOptions[]
): RollupWatcher;

interface AcornNode {
  end: number;
  start: number;
  type: string;
}