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terser.d.ts
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Wed, Aug 21, 17:27

terser.d.ts

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

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