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/// <reference lib="es2015" />
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import { RawSourceMap } from 'source-map';
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export type ECMA = 5 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020;
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export interface ParseOptions {
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bare_returns?: boolean;
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ecma?: ECMA;
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html5_comments?: boolean;
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shebang?: boolean;
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}
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export interface CompressOptions {
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arguments?: boolean;
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arrows?: boolean;
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booleans_as_integers?: boolean;
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booleans?: boolean;
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collapse_vars?: boolean;
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comparisons?: boolean;
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computed_props?: boolean;
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conditionals?: boolean;
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dead_code?: boolean;
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defaults?: boolean;
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directives?: boolean;
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drop_console?: boolean;
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drop_debugger?: boolean;
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ecma?: ECMA;
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evaluate?: boolean;
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expression?: boolean;
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global_defs?: object;
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hoist_funs?: boolean;
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hoist_props?: boolean;
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hoist_vars?: boolean;
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ie8?: boolean;
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if_return?: boolean;
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inline?: boolean | InlineFunctions;
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join_vars?: boolean;
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keep_classnames?: boolean | RegExp;
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keep_fargs?: boolean;
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keep_fnames?: boolean | RegExp;
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keep_infinity?: boolean;
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loops?: boolean;
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module?: boolean;
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negate_iife?: boolean;
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passes?: number;
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properties?: boolean;
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pure_funcs?: string[];
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pure_getters?: boolean | 'strict';
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reduce_funcs?: boolean;
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reduce_vars?: boolean;
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sequences?: boolean | number;
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side_effects?: boolean;
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switches?: boolean;
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toplevel?: boolean;
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top_retain?: null | string | string[] | RegExp;
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typeofs?: boolean;
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unsafe_arrows?: boolean;
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unsafe?: boolean;
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unsafe_comps?: boolean;
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unsafe_Function?: boolean;
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unsafe_math?: boolean;
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unsafe_symbols?: boolean;
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unsafe_methods?: boolean;
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unsafe_proto?: boolean;
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unsafe_regexp?: boolean;
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unsafe_undefined?: boolean;
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unused?: boolean;
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}
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export enum InlineFunctions {
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Disabled = 0,
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SimpleFunctions = 1,
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WithArguments = 2,
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WithArgumentsAndVariables = 3
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}
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export interface MangleOptions {
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eval?: boolean;
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keep_classnames?: boolean | RegExp;
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keep_fnames?: boolean | RegExp;
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module?: boolean;
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nth_identifier?: SimpleIdentifierMangler | WeightedIdentifierMangler;
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properties?: boolean | ManglePropertiesOptions;
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reserved?: string[];
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safari10?: boolean;
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toplevel?: boolean;
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}
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/**
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* An identifier mangler for which the output is invariant with respect to the source code.
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*/
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export interface SimpleIdentifierMangler {
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/**
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* Obtains the nth most favored (usually shortest) identifier to rename a variable to.
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* The mangler will increment n and retry until the return value is not in use in scope, and is not a reserved word.
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* This function is expected to be stable; Evaluating get(n) === get(n) should always return true.
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* @param n The ordinal of the identifier.
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*/
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get(n: number): string;
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}
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/**
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* An identifier mangler that leverages character frequency analysis to determine identifier precedence.
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*/
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export interface WeightedIdentifierMangler extends SimpleIdentifierMangler {
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/**
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* Modifies the internal weighting of the input characters by the specified delta.
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* Will be invoked on the entire printed AST, and then deduct mangleable identifiers.
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* @param chars The characters to modify the weighting of.
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* @param delta The numeric weight to add to the characters.
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*/
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consider(chars: string, delta: number): number;
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/**
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* Resets character weights.
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*/
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reset(): void;
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/**
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* Sorts identifiers by character frequency, in preparation for calls to get(n).
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*/
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sort(): void;
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}
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export interface ManglePropertiesOptions {
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builtins?: boolean;
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debug?: boolean;
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keep_quoted?: boolean | 'strict';
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nth_identifier?: SimpleIdentifierMangler | WeightedIdentifierMangler;
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regex?: RegExp | string;
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reserved?: string[];
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}
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export interface FormatOptions {
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ascii_only?: boolean;
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/** @deprecated Not implemented anymore */
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beautify?: boolean;
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braces?: boolean;
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comments?: boolean | 'all' | 'some' | RegExp | ( (node: any, comment: {
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value: string,
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type: 'comment1' | 'comment2' | 'comment3' | 'comment4',
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pos: number,
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line: number,
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col: number,
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}) => boolean );
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ecma?: ECMA;
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ie8?: boolean;
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indent_level?: number;
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indent_start?: number;
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inline_script?: boolean;
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keep_quoted_props?: boolean;
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max_line_len?: number | false;
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preamble?: string;
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preserve_annotations?: boolean;
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quote_keys?: boolean;
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quote_style?: OutputQuoteStyle;
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safari10?: boolean;
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semicolons?: boolean;
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shebang?: boolean;
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shorthand?: boolean;
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source_map?: SourceMapOptions;
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webkit?: boolean;
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width?: number;
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wrap_iife?: boolean;
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wrap_func_args?: boolean;
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}
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export enum OutputQuoteStyle {
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PreferDouble = 0,
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AlwaysSingle = 1,
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AlwaysDouble = 2,
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AlwaysOriginal = 3
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}
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export interface MinifyOptions {
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compress?: boolean | CompressOptions;
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ecma?: ECMA;
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enclose?: boolean | string;
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ie8?: boolean;
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keep_classnames?: boolean | RegExp;
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keep_fnames?: boolean | RegExp;
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mangle?: boolean | MangleOptions;
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module?: boolean;
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nameCache?: object;
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format?: FormatOptions;
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/** @deprecated */
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output?: FormatOptions;
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parse?: ParseOptions;
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safari10?: boolean;
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sourceMap?: boolean | SourceMapOptions;
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toplevel?: boolean;
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}
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export interface MinifyOutput {
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code?: string;
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map?: RawSourceMap | string;
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}
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export interface SourceMapOptions {
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/** Source map object, 'inline' or source map file content */
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content?: RawSourceMap | string;
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includeSources?: boolean;
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filename?: string;
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root?: string;
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url?: string | 'inline';
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}
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export function minify(files: string | string[] | { [file: string]: string }, options?: MinifyOptions): Promise<MinifyOutput>;
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