metro/flow-typed/uglify.js

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

'use strict';

type _Input =
  | string // code or file name
  | Array<string> // array of file names
  | {[filename: string]: string}; // file names and corresponding code


type _Options = {
  // https://github.com/mishoo/UglifyJS2/tree/harmony#compress-options
  compress?: false | Object,
  ie8?: boolean,
  mangle?: boolean | {
    eval?: boolean,
    keep_fnames?: boolean,
    properties?: boolean | {
      builtins?: boolean,
      debug?: boolean,
      keep_quoted?: boolean,
      regex?: RegExp,
      reserved?: Array<string>,
    },
    reserved?: Array<string>,
    safari10?: boolean,
    toplevel?: boolean,
  },
  output?: {
    ascii_only?: boolean,
    beautify?: boolean,
    bracketize?: boolean,
    comments?: boolean | 'all' | 'some' | RegExp | Function,
    ecma?: 5 | 6,
    indent_level?: number,
    indent_start?: number,
    inline_script?: number,
    keep_quoted_props?: boolean,
    max_line_len?: false | number,
    preamble?: string,
    preserve_line?: boolean,
    quote_keys?: boolean,
    quote_style?: 0 | 1 | 2 | 3,
    semicolons?: boolean,
    shebang?: boolean,
    width?: number,
    wrap_iife?: boolean,
  },
  parse?: {
    bare_returns: boolean,
    html5_comments: boolean,
    shebang: boolean,
  },
  sourceMap?: false,
  toplevel?: boolean,
  warnings?: boolean | 'verbose',
};

type _SourceMap = {
  file?: string,
  mappings: string,
  names: Array<string>,
  sourceRoot?: string,
  sources: Array<string>,
  sourcesContent?: Array<?string>,
  version: number,
};

type _SourceMapOptions = true | {
  filename?: string,
  content?: ?string | _SourceMap,
  includeSources?: boolean,
  root?: string,
  url?: string,
};

type _Error = {|error: Error|};
type _Result = {|code: string, warnings?: Array<string>|};

declare module 'uglify-es' {
  declare function minify(
    code: _Input,
    options?: _Options,
  ): _Error | _Result;
  declare function minify(
    code: _Input,
    options: {..._Options, sourceMap: _SourceMapOptions},
  ): _Error | {|..._Result, map: string|};
}