flow/lib/core.js at v0.29 · dominictobias/flow

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/**

* This source code is licensed under the BSD-style license found in the

* LICENSE file in the "flow" directory of this source tree. An additional grant

* of patent rights can be found in the PATENTS file in the same directory.

/* JS primitives

cf. http://typescript.codeplex.com/sourcecontrol/latest#typings/lib.d.ts

declare var NaN: number;

declare var Infinity: number;

declare function parseInt(string: mixed, radix?: number): number;

declare function parseFloat(string: mixed): number;

declare function isNaN(number: mixed): boolean;

declare function isFinite(number: mixed): boolean;

declare function decodeURI(encodedURI: string): string;

declare function decodeURIComponent(encodedURIComponent: string): string;

declare function encodeURI(uri: string): string;

declare function encodeURIComponent(uriComponent: string): string;

// TODO: instance

declare class Object {

static (o: ?void): {[key: any]: any};

static (o: boolean): Boolean;

static (o: number): Number;

static (o: string): String;

static <T: Object>(o: T): T;

static assign: Object$Assign;

static create(o: any, properties?: any): any; // compiler magic

static defineProperties(o: any, properties: any): any;

static defineProperty(o: any, p: any, attributes: any): any;

static entries(object: any): Array<[string, mixed]>;

static freeze<T>(o: T): T;

static getOwnPropertyDescriptor(o: any, p: any): any;

static getOwnPropertyNames(o: any): Array<string>;

static getOwnPropertySymbols(o: any): Symbol[];

static getPrototypeOf: Object$GetPrototypeOf;

static is(a: any, b: any): boolean;

static isExtensible(o: any): boolean;

static isFrozen(o: any): boolean;

static isSealed(o: any): boolean;

static keys(o: any): Array<string>;

static preventExtensions(o: any): any;

static seal(o: any): any;

static setPrototypeOf(o: any, proto: ?Object): bool;

static values(object: any): Array<mixed>;

hasOwnProperty(prop: any): boolean;

propertyIsEnumerable(prop: any): boolean;

toLocaleString(): string;

toString(): string;

valueOf(): Object;

[key:any]: any;

}

// Well known Symbols.

declare class $SymbolHasInstance mixins Symbol {}

declare class $SymboIsConcatSpreadable mixins Symbol {}

declare class $SymbolIterator mixins Symbol {}

declare class $SymbolMatch mixins Symbol {}

declare class $SymbolReplace mixins Symbol {}

declare class $SymbolSearch mixins Symbol {}

declare class $SymbolSpecies mixins Symbol {}

declare class $SymbolSplit mixins Symbol {}

declare class $SymbolToPrimitive mixins Symbol {}

declare class $SymbolToStringTag mixins Symbol {}

declare class $SymbolUnscopables mixins Symbol {}

declare class Symbol {

static (value?:any): Symbol;

static for(key: string): Symbol;

static hasInstance: $SymbolHasInstance;

static isConcatSpreadable: $SymboIsConcatSpreadable;

static iterator: string; // polyfill '@@iterator'

static keyFor(sym: Symbol): ?string;

static length: 0;

static match: $SymbolMatch;

static replace: $SymbolReplace;

static search: $SymbolSearch;

static species: $SymbolSpecies;

static split: $SymbolSplit;

static toPrimitive: $SymbolToPrimitive;

static toStringTag: $SymbolToStringTag;

static unscopables: $SymbolUnscopables;

toString(): string;

valueOf(): ?Symbol;

}

// TODO: instance, static

declare class Function {

apply: Function$Prototype$Apply; // (thisArg: any, argArray?: any) => any

bind: Function$Prototype$Bind; // (thisArg: any, ...argArray: Array<any>) => any;

call: Function$Prototype$Call; // (thisArg: any, ...argArray: Array<any>) => any

arguments: any;

caller: Function | null;

length: number;

name: string;

}

declare class Boolean {

static (value:any):boolean;

valueOf(): boolean;

}

declare class Number {

static EPSILON: number;

static MAX_SAFE_INTEGER: number;

static MAX_VALUE: number;

static MIN_SAFE_INTEGER: number;

static MIN_VALUE: number;

static NaN: number;

static NEGATIVE_INFINITY: number;

static POSITIVE_INFINITY: number;

static (value:any):number;

static isFinite(value: any): boolean;

static isInteger(value: any): boolean;

static isNaN(value: any): boolean;

static isSafeInteger(value: any): boolean;

static parseFloat(value: string): number;

static parseInt(value: string): number;

toExponential(fractionDigits?: number): string;

toFixed(fractionDigits?: number): string;

toPrecision(precision?: number): string;

toString(radix?: number): string;

valueOf(): number;

}

declare var Math: {

E: number;

LN10: number;

LN2: number;

LOG10E: number;

LOG2E: number;

PI: number;

SQRT1_2: number;

SQRT2: number;

abs(x: number): number;

acos(x: number): number;

acosh(x: number): number;

asin(x: number): number;

asinh(x: number): number;

atan(x: number): number;

atan2(y: number, x: number): number;

atanh(x: number): number;

cbrt(x: number): number;

ceil(x: number): number;

clz32(x: number): number;

cos(x: number): number;

cosh(x: number): number;

exp(x: number): number;

expm1(x: number): number;

floor(x: number): number;

fround(x: number): number;

hypot(...values: Array<number>): number;

imul(y: number, x: number): number;

log(x: number): number;

log10(x: number): number;

log1p(x: number): number;

log2(x: number): number;

max(...values: Array<number>): number;

min(...values: Array<number>): number;

pow(x: number, y: number): number;

random(): number;

round(x: number): number;

sign(x: number): number;

sin(x: number): number;

sinh(x: number): number;

sqrt(x: number): number;

tan(x: number): number;

tanh(x: number): number;

trunc(x: number): number;

};

declare class Array<T> {

@@iterator(): Iterator<T>;

toLocaleString(): string;

// concat creates a new array

concat<S, Item: Array<S> | S>(...items: Array<Item>): Array<T | S>;

copyWithin(target: number, start: number, end?: number): T[];

entries(): Iterator<[number, T]>;

every(callbackfn: (value: T, index: number, array: Array<T>) => any, thisArg?: any): boolean;

fill(value: T, begin?: number, end?: number): Array<T>;

filter(callbackfn: (value: T, index: number, array: Array<T>) => any, thisArg?: any): Array<T>;

find(callbackfn: (value: T, index: number, array: Array<T>) => any, thisArg?: any): T;

findIndex(callbackfn: (value: T, index: number, array: Array<T>) => any, thisArg?: any): number;

forEach(callbackfn: (value: T, index: number, array: Array<T>) => any, thisArg?: any): void;

includes(searchElement: T, fromIndex?: number): boolean;

indexOf(searchElement: T, fromIndex?: number): number;

join(separator?: string): string;

keys(): Iterator<number>;

lastIndexOf(searchElement: T, fromIndex?: number): number;

map(callbackfn: (value: T, index: number, array: Array<T>) => U, thisArg?: any): Array;

pop(): T;

push(...items: Array<T>): number;

reduce(

callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: Array<T>) => T,

initialValue: void

): T;

reduce(

callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: Array<T>) => U,

initialValue: U

): U;

reduceRight(

callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: Array<T>) => T,

initialValue: void

): T;

reduceRight(

callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: Array<T>) => U,

initialValue: U

): U;

reverse(): Array<T>;

shift(): T;

slice(start?: number, end?: number): Array<T>;

some(callbackfn: (value: T, index: number, array: Array<T>) => any, thisArg?: any): boolean;

sort(compareFn?: (a: T, b: T) => number): Array<T>;

splice(start: number, deleteCount?: number, ...items: Array<T>): Array<T>;

unshift(...items: Array<T>): number;

values(): Iterator<T>;

length: number;

static (...values:Array<any>): Array<any>;

static isArray(obj: any): bool;

static from<A, B>(iter: Iterable<A>, mapFn: (elem: A, index: number) => B, thisArg?: any): Array;

static from<A>(iter: Iterable<A>, mapFn: void): Array<A>;

static from<A, B>(iter: Iterator<A>, mapFn: (elem: A, index: number) => B, thisArg?: any): Array;

static from<A>(iter: Iterator<A>, mapFn: void): Array<A>;

static from<A>(arrayLike: {length: number}, mapFn: (elem: void, index: number) => A, thisArg?: any): Array<A>;

static from(arrayLike: {length: number}, mapFn: void): Array<void>;

static of(...values: any[]): any[];

}

declare class String {

@@iterator(): Iterator<string>;

anchor(name: string): string;

charAt(pos: number): string;

charCodeAt(index: number): number;

codePointAt(index: number): number;

concat(...strings: Array<string>): string;

endsWith(searchString: string, position?: number): boolean;

includes(searchString: string, position?: number): boolean;

indexOf(searchString: string, position?: number): number;

lastIndexOf(searchString: string, position?: number): number;

link(href: string): string;

localeCompare(that: string): number;

match(regexp: string | RegExp): ?Array<string>;

normalize(format?: string): string;

repeat(count: number): string;

replace(searchValue: string | RegExp, replaceValue: string | (substring: string, ...args: Array<any>) => string): string;

search(regexp: string | RegExp): number;

slice(start?: number, end?: number): string;

split(separator: string | RegExp, limit?: number): Array<string>;

startsWith(searchString: string, position?: number): boolean;

substr(from: number, length?: number): string;

substring(start: number, end?: number): string;

toLocaleLowerCase(): string;

toLocaleUpperCase(): string;

toLowerCase(): string;

toUpperCase(): string;

trim(): string;

trimLeft(): string;

trimRight(): string;

valueOf(): string;

length: number;

static (value:any):string;

static fromCharCode(...codes: Array<number>): string;

static fromCodePoint(...codes: Array<number>): string;

static raw(templateString: string): string;

static raw(callSite: $Shape<{raw: string}>, ...substitutions: any[]): string;

}

type RegExp$flags =

'i' | 'g' | 'm' | 'y' | 'ig' | 'im' | 'iy' | 'gi' | 'gm' | 'gy' | 'mi' | 'mg' | 'my' | 'yg' | 'ym' | 'yi' |

'igm' | 'igy' | 'img' | 'imy' | 'iym' | 'iyg' | 'gim' | 'gym' | 'gmi' | 'gmy' | 'gyi' | 'giy' |

'mig' | 'mgi' | 'myg' | 'mgy' | 'miy' | 'myi' | 'igmy' | 'igym' | 'imgy' | 'imyg' | 'iygm' |

declare class RegExp {

static (pattern: string | RegExp, flags?: RegExp$flags): RegExp;

compile(): RegExp;

constructor(pattern: string | RegExp, flags?: RegExp$flags): RegExp;

exec(string: string): any;

flags: string;

global: boolean;

ignoreCase: boolean;

lastIndex: number;

multiline: boolean;

source: string;

sticky: bool;

unicode: bool;

test(string: string): boolean;

toString(): string;

}

declare class Date {

// new Date();

// new Date(timestamp);

// new Date(dateString);

// new Date(year, month[, day[, hour[, minute[, second[, millisecond]]]]]);

// TODO: This should specify an overloaded constructor once they're

// supported, instead of a union type for the first argument.

constructor(value?: number | string, month?: number, day?: number, hour?: number, minute?: number, second?: number, millisecond?: number): void;

getDate(): number;

getDay(): number;

getFullYear(): number;

getHours(): number;

getMilliseconds(): number;

getMinutes(): number;

getMonth(): number;

getSeconds(): number;

getTime(): number;

getTimezoneOffset(): number;

getUTCDate(): number;

getUTCDay(): number;

getUTCFullYear(): number;

getUTCHours(): number;

getUTCMilliseconds(): number;

getUTCMinutes(): number;

getUTCMonth(): number;

getUTCSeconds(): number;

setDate(date: number): number;

setFullYear(year: number, month?: number, date?: number): number;

setHours(hours: number, min?: number, sec?: number, ms?: number): number;

setMilliseconds(ms: number): number;

setMinutes(min: number, sec?: number, ms?: number): number;

setMonth(month: number, date?: number): number;

setSeconds(sec: number, ms?: number): number;

setTime(time: number): number;

setUTCDate(date: number): number;

setUTCFullYear(year: number, month?: number, date?: number): number;

setUTCHours(hours: number, min?: number, sec?: number, ms?: number): number;

setUTCMilliseconds(ms: number): number;

setUTCMinutes(min: number, sec?: number, ms?: number): number;

setUTCMonth(month: number, date?: number): number;

setUTCSeconds(sec: number, ms?: number): number;

toDateString(): string;

toISOString(): string;

toJSON(key?: any): string;

toLocaleDateString(): string;

toLocaleString(): string;

toLocaleTimeString(): string;

toTimeString(): string;

toUTCString(): string;

valueOf(): number;

static ():string;

static now(): number;

static parse(s: string): number;

static UTC(year: number, month: number, date?: number, hours?: number, minutes?: number, seconds?: number, ms?: number): number;

// multiple indexers not yet supported

[key: $SymbolToPrimitive]: (hint: 'string' | 'default' | 'number') => string | number;

}

declare class CallSite {

getThis(): any;

getTypeName(): string;

getFunction(): ?Function;

getFunctionName(): string;

getMethodName(): string;

getFileName(): ?string;

getLineNumber(): ?number;

getColumnNumber(): ?number;

getEvalOrigin(): ?CallSite;

getScriptNameOrSourceURL(): ?string;

isToplevel(): bool;

isEval(): bool;

isNative(): bool;

isConstructor(): bool;

toString(): string;

}

declare class Error {

static (message?:string):Error;

name: string;

message: string;

stack: string;

// note: v8 only (node/chrome)

static captureStackTrace(target: Object, constructor?: Function): void;

static stackTraceLimit: number;

static prepareStackTrace: (err: Error, stack: CallSite[]) => mixed;

}

declare class EvalError extends Error {

}

declare class RangeError extends Error {

}

declare class ReferenceError extends Error {

}

declare class SyntaxError extends Error {

}

declare class TypeError extends Error {

}

declare class URIError extends Error {

}

declare class JSON {

static parse(text: string, reviver?: (key: any, value: any) => any): any;

static stringify(

value: any,

replacer?: ?((key: string, value: any) => any) | Array<any>,

space?: string | number

): string;

}

/* Iterators */

type IteratorResult<Yield,Return> = {

done: true,

value?: Return,

} | {

done: false,

value: Yield,

};

interface $Iterator<Yield,Return,Next> {

@@iterator(): $Iterator<Yield,Return,Next>;

next(value?: Next): IteratorResult<Yield,Return>;

}

type Iterator<T> = $Iterator<T,void,void>;

interface $Iterable<Yield,Return,Next> {

@@iterator(): $Iterator<Yield,Return,Next>;

}

type Iterable<T> = $Iterable<T,void,void>;

/* Generators */

interface Generator<+Yield,+Return,-Next> {

@@iterator(): $Iterator<Yield,Return,Next>;

next(value?: Next): IteratorResult<Yield,Return>;

return<R>(value: R): { done: true, value: R };

throw(error?: any): IteratorResult<Yield,Return>;

}

/* Maps and Sets */

declare class Map<K, V> {

@@iterator(): Iterator<[K, V]>;

constructor(iterable: ?Iterable<[K, V]>): void;

clear(): void;

delete(key: K): boolean;

entries(): Iterator<[K, V]>;

forEach(callbackfn: (value: V, index: K, map: Map<K, V>) => mixed, thisArg?: any): void;

get(key: K): V | void;

has(key: K): boolean;

keys(): Iterator<K>;

set(key: K, value: V): Map<K, V>;

size: number;

values(): Iterator<V>;

// Multiple Indexers not yet supported

[key: $SymbolToStringTag | $SymbolSpecies]: Function;

}

declare class WeakMap<K, V> {

clear(): void;

delete(key: K): boolean;

get(key: K): V;

has(key: K): boolean;

set(key: K, value: V): WeakMap<K, V>;

}

declare class Set<T> {

@@iterator(): Iterator<T>;

add(value: T): Set<T>;

clear(): void;

delete(value: T): boolean;

entries(): Iterator<[T, T]>;

forEach(callbackfn: (value: T, index: T, set: Set<T>) => mixed, thisArg?: any): void;

has(value: T): boolean;

keys(): Iterator<T>;

size: number;

values(): Iterator<T>;

[key: $SymbolSpecies]: Function; // This would the Set constructor, can't think of a way to correctly type this

}

declare class WeakSet<T: Object> {

constructor(iterable?: Iterable<T>): void;

add(value: T): WeakSet<T>;

delete(value: T): boolean;

has(value: T): boolean;

}

/* Promises

cf. https://github.com/borisyankov/DefinitelyTyped/blob/master/es6-promises/es6-promises.d.ts

declare class Promise<+R> {

constructor(callback: (

resolve: (result: Promise<R> | R) => void,

reject: (error: any) => void

) => mixed): void;

then(

onFulfill?: (value: R) => Promise | U,

onReject?: (error: any) => Promise | U

): Promise;

catch(

onReject?: (error: any) => ?Promise | U

): Promise;

static resolve<T>(object?: Promise<T> | T): Promise<T>;

static reject<T>(error?: any): Promise<T>;

static all: Promise$All;

static race<T, Elem: Promise<T> | T>(promises: Array<Elem>): Promise<T>;

}

// we use this signature when typing await expressions

declare function $await<T>(p: Promise<T> | T): T;

/* Binary data */

declare class ArrayBuffer {

static isView(arg: mixed): boolean;

constructor(byteLength: number): void;

byteLength: number;

slice(begin: number, end?: number): this;

[key: $SymbolSpecies]: Function; // This would be the constructor, can't think of a way to correctly type this

}

// This is a helper type to simplify the specification, it isn't an interface

// and there are no objects implementing it.

// https://developer.mozilla.org/en-US/docs/Web/API/A 8BD0 rrayBufferView

type $ArrayBufferView = $TypedArray | DataView;

// The TypedArray intrinsic object is a constructor function, but does not have

// a global name or appear as a property of the global object.

// http://www.ecma-international.org/ecma-262/6.0/#sec-%typedarray%-intrinsic-object

declare class $TypedArray {

static BYTES_PER_ELEMENT: number;

static from(iterable: Iterable<number>): this;

static of(...values: number[]): this;

constructor(length: number): void;

constructor(typedArray: $TypedArray): void;

constructor(iterable: Iterable<number>): void;

constructor(buffer: ArrayBuffer, byteOffset?: number, length?: number): void;

[index: number]: number;

@@iterator(): Iterator<number>;

buffer: ArrayBuffer;

byteLength: number;

byteOffset: number;

length: number;

copyWithin(target: number, start: number, end?: number): void;

entries(): Iterator<number>;

every(callback: (value: number, index: number, array: this) => mixed, thisArg?: any): boolean;

fill(value: number, start?: number, end?: number): void;

filter(callback: (value: number, index: number, array: this) => mixed, thisArg?: any): this;

find(callback: (value: number, index: number, array: this) => mixed, thisArg?: any): number | void;

findIndex(callback: (value: number, index: number, array: this) => mixed, thisArg?: any): number | void;

forEach(callback: (value: number, index: number, array: this) => mixed, thisArg?: any): void;

includes(searchElement: number, fromIndex?: number): boolean;

indexOf(searchElement: number, fromIndex?: number): number; // -1 if not present

join(separator?: string): string;

keys(): Array<number>;

lastIndexOf(searchElement: number, fromIndex?: number): number; // -1 if not present

map(callback: (currentValue: number, index: number, array: this) => number, thisArg?: any): this;

reduce(

callback: (previousValue: number, currentValue: number, index: number, array: this) => number,

initialValue: void

): number;

reduce(

callback: (previousValue: U, currentValue: number, index: number, array: this) => U,

initialValue: U

): U;

reduceRight(

callback: (previousValue: number, currentValue: number, index: number, array: this) => number,

initialValue: void

): number;

reduceRight(

callback: (previousValue: U, currentValue: number, index: number, array: this) => U,

initialValue: U

): U;

reverse(): this;

set(array: Array<number> | $TypedArray, offset?: number): void;

slice(begin?: number, end?: number): this;

some(callback: (value: number, index: number, array: this) => mixed, thisArg?: any): boolean;

sort(compare?: (a: number, b: number) => number): void;

subarray(begin?: number, end?: number): this;

values(): Iterator<number>;

}

declare class Int8Array extends $TypedArray {}

declare class Uint8Array extends $TypedArray {}

declare class Uint8ClampedArray extends $TypedArray {}

declare class Int16Array extends $TypedArray {}

declare class Uint16Array extends $TypedArray {}

declare class Int32Array extends $TypedArray {}

declare class Uint32Array extends $TypedArray {}

declare class Float32Array extends $TypedArray {}

declare class Float64Array extends $TypedArray {}

declare class DataView {

constructor(buffer: ArrayBuffer, byteOffset?: number, length?: number): void;

buffer: ArrayBuffer;

byteLength: number;

byteOffset: number;

getInt8(byteOffset: number): number;

getUint8(byteOffset: number): number;

getInt16(byteOffset: number, littleEndian?: boolean): number;

getUint16(byteOffset: number, littleEndian?: boolean): number;

getInt32(byteOffset: number, littleEndian?: boolean): number;

getUint32(byteOffset: number, littleEndian?: boolean): number;

getFloat32(byteOffset: number, littleEndian?: boolean): number;

getFloat64(byteOffset: number, littleEndian?: boolean): number;

setInt8(byteOffset: number, value: number): void;

setUint8(byteOffset: number, value: number): void;

setInt16(byteOffset: number, value: number, littleEndian?: boolean): void;

setUint16(byteOffset: number, value: number, littleEndian?: boolean): void;

setInt32(byteOffset: number, value: number, littleEndian?: boolean): void;

setUint32(byteOffset: number, value: number, littleEndian?: boolean): void;

setFloat32(byteOffset: number, value: number, littleEndian?: boolean): void;

setFloat64(byteOffset: number, value: number, littleEndian?: boolean): void;

}

declare function btoa(rawString: string): string;

declare function atob(encodedString: string): string;

declare function clearInterval(intervalId?: number): void;

declare function clearTimeout(timeoutId?: any): void;

declare function setTimeout(callback: any, ms?: number, ...args: Array<any>): number;

declare function setInterval(callback: any, ms?: number, ...args: Array<any>): number;

/* Reflect API */

declare class Reflect {

static apply(target: Function, thisArg?: any, argumentsList?: Array<any>): any;

static construct(target: Function, argumentsList?: Array<any>, newTarget?: Function): any;

static defineProperty(o: any, p: any, attributes: any): boolean;

static deleteProperty(o: any, p: any): boolean;

static get(o: any, p: any, receiver?: any): any;

static getOwnPropertyDescriptor(o: any, p: any): any;

static getPrototypeOf(o: any): any;

static has(o: any, p: any): boolean;

static isExtensible(o: any): boolean;

static ownKeys(o: any): Array<any>;

static preventExtensions(o: any): boolean;

static set(o: any, p: any, value: any, receiver?: any): boolean;

static setPrototypeOf(o: any, prototype: any): boolean;

}

/* CommonJS */

declare var global: any;

declare var module: {

exports: any;

require(id: string): any;

id: string;

filename: string;

loaded: boolean;

parent: any;

children: Array<any>;

};

declare function require(id: string): any;

declare var exports: any;

/* Commonly available, shared between node and dom */

declare var console: any;

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