mirror of
https://github.com/gosticks/DefinitelyTyped.git
synced 2025-10-16 12:05:41 +00:00
71 lines
2.9 KiB
TypeScript
71 lines
2.9 KiB
TypeScript
// Type definitions for weak-napi 1.0
|
|
// Project: https://github.com/node-ffi-napi/weak-napi
|
|
// Definitions by: Hieu Lam <https://github.com/lamhieu-vk>
|
|
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
|
|
// TypeScript Version: 2.8
|
|
|
|
/// <reference types="node" />
|
|
|
|
declare class WeakRef<T> {}
|
|
|
|
/**
|
|
* Makes weak references to JavaScript Objects
|
|
* @param object can be a regular Object, an Array, a Function, a RegExp, or any of the primitive types or constructor function created with new
|
|
* @param callback a callback function to be invoked before the object is garbage collected
|
|
*/
|
|
declare function weak<T extends object>(object: T, callback?: () => void): WeakRef<T>;
|
|
|
|
declare namespace weak {
|
|
/**
|
|
* Returns the actual reference to the Object that this weak reference was created with. If this is called with a dead reference, undefined is returned.
|
|
* @param ref weak reference object
|
|
*/
|
|
function get<T>(ref: WeakRef<T>): T | undefined;
|
|
|
|
/**
|
|
* Checks to see if ref is a dead reference. Returns true if the original Object has already been GC'd, false otherwise
|
|
* @param ref weak reference object
|
|
*/
|
|
function isDead(ref: WeakRef<any>): ref is WeakRef<undefined>;
|
|
|
|
/**
|
|
* Checks to see if ref is "near death". This will be true exactly during the weak reference callback function, and false any other time.
|
|
* @param ref weak reference object
|
|
*/
|
|
function isNearDeath(ref: WeakRef<any>): false;
|
|
|
|
/**
|
|
* Checks to see if obj is "weak reference" instance. Returns true if the passed in object is a "weak reference", false otherwise.
|
|
* @param obj object to check
|
|
*/
|
|
function isWeakRef(obj: any): obj is WeakRef<any>;
|
|
|
|
/**
|
|
* Adds callback to the Array of callback functions that will be invoked before the Object gets garbage collected. The callbacks get executed in the order that they are added.
|
|
* @param ref weak reference object
|
|
* @param callback function to be called
|
|
*/
|
|
function addCallback(ref: WeakRef<any>, callback: () => void): NodeJS.EventEmitter;
|
|
|
|
/**
|
|
* Removes callback from the Array of callback functions that will be invoked before the Object gets garbage collected.
|
|
* @param ref weak reference object
|
|
* @param callback function to be called
|
|
*/
|
|
function removeCallback(ref: WeakRef<any>, callback: () => void): NodeJS.EventEmitter;
|
|
|
|
/**
|
|
* Empties the Array of callback functions that will be invoked before the Object gets garbage collected.
|
|
* @param ref weak reference object
|
|
*/
|
|
function removeCallbacks(ref: WeakRef<any>): NodeJS.EventEmitter;
|
|
|
|
/**
|
|
* Returns an Array that ref iterates through to invoke the GC callbacks. This utilizes node's EventEmitter#listeners() function and therefore returns a copy in node 0.10 and newer.
|
|
* @param ref weak reference object
|
|
*/
|
|
function callbacks(ref: WeakRef<any>): Array<(() => void)>;
|
|
}
|
|
|
|
export = weak;
|