138 lines
No EOL
4.7 KiB
TypeScript
138 lines
No EOL
4.7 KiB
TypeScript
namespace ts {
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// WARNING: The script `configurePrerelease.ts` uses a regexp to parse out these values.
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// If changing the text in this section, be sure to test `configurePrerelease` too.
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export const versionMajorMinor = "4.0";
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/** The version of the TypeScript compiler release */
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export const version = `${versionMajorMinor}.0-dev`;
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/**
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* Type of objects whose values are all of the same type.
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* The `in` and `for-in` operators can *not* be safely used,
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* since `Object.prototype` may be modified by outside code.
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*/
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export interface MapLike<T> {
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[index: string]: T;
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}
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export interface SortedReadonlyArray<T> extends ReadonlyArray<T> {
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" __sortedArrayBrand": any;
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}
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export interface SortedArray<T> extends Array<T> {
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" __sortedArrayBrand": any;
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}
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/** Common read methods for ES6 Map/Set. */
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export interface ReadonlyCollection<K> {
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readonly size: number;
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has(key: K): boolean;
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keys(): Iterator<K>;
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}
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/** Common write methods for ES6 Map/Set. */
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export interface Collection<K> extends ReadonlyCollection<K> {
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delete(key: K): boolean;
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clear(): void;
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}
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/** ES6 Map interface, only read methods included. */
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export interface ReadonlyESMap<K, V> extends ReadonlyCollection<K> {
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get(key: K): V | undefined;
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values(): Iterator<V>;
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entries(): Iterator<[K, V]>;
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forEach(action: (value: V, key: K) => void): void;
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}
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/**
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* ES6 Map interface, only read methods included.
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* @deprecated Use `ts.ReadonlyESMap<K, V>` instead.
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*/
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export interface ReadonlyMap<T> extends ReadonlyESMap<string, T> {
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}
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/** ES6 Map interface. */
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export interface ESMap<K, V> extends ReadonlyESMap<K, V>, Collection<K> {
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set(key: K, value: V): this;
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}
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/**
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* ES6 Map interface.
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* @deprecated Use `ts.ESMap<K, V>` instead.
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*/
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export interface Map<T> extends ESMap<string, T> {
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}
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/* @internal */
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export interface MapConstructor {
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// eslint-disable-next-line @typescript-eslint/prefer-function-type
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new <K, V>(iterable?: readonly (readonly [K, V])[] | ReadonlyESMap<K, V>): ESMap<K, V>;
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}
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/** ES6 Set interface, only read methods included. */
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export interface ReadonlySet<T> extends ReadonlyCollection<T> {
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has(value: T): boolean;
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values(): Iterator<T>;
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entries(): Iterator<[T, T]>;
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forEach(action: (value: T, key: T) => void): void;
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}
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/** ES6 Set interface. */
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export interface Set<T> extends ReadonlySet<T>, Collection<T> {
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add(value: T): this;
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delete(value: T): boolean;
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}
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/* @internal */
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export interface SetConstructor {
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// eslint-disable-next-line @typescript-eslint/prefer-function-type
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new <T>(iterable?: readonly T[] | ReadonlySet<T>): Set<T>;
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}
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/** ES6 Iterator type. */
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export interface Iterator<T> {
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next(): { value: T, done?: false } | { value: never, done: true };
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}
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/** Array that is only intended to be pushed to, never read. */
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export interface Push<T> {
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push(...values: T[]): void;
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/* @internal*/ readonly length: number;
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}
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/* @internal */
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export type EqualityComparer<T> = (a: T, b: T) => boolean;
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/* @internal */
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export type Comparer<T> = (a: T, b: T) => Comparison;
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/* @internal */
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export const enum Comparison {
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LessThan = -1,
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EqualTo = 0,
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GreaterThan = 1
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}
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/* @internal */
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export namespace NativeCollections {
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declare const Map: MapConstructor | undefined;
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declare const Set: SetConstructor | undefined;
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/**
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* Returns the native Map implementation if it is available and compatible (i.e. supports iteration).
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*/
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export function tryGetNativeMap(): MapConstructor | undefined {
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// Internet Explorer's Map doesn't support iteration, so don't use it.
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// eslint-disable-next-line no-in-operator
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return typeof Map !== "undefined" && "entries" in Map.prototype && new Map([[0, 0]]).size === 1 ? Map : undefined;
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}
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/**
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* Returns the native Set implementation if it is available and compatible (i.e. supports iteration).
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*/
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export function tryGetNativeSet(): SetConstructor | undefined {
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// Internet Explorer's Set doesn't support iteration, so don't use it.
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// eslint-disable-next-line no-in-operator
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return typeof Set !== "undefined" && "entries" in Set.prototype && new Set([0]).size === 1 ? Set : undefined;
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}
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}
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} |