60 lines
1.4 KiB
JavaScript
60 lines
1.4 KiB
JavaScript
'use strict'
|
|
|
|
const v8Util = process.atomBinding('v8_util')
|
|
|
|
class CallbacksRegistry {
|
|
constructor () {
|
|
this.nextId = 0
|
|
this.callbacks = {}
|
|
}
|
|
|
|
add (callback) {
|
|
// The callback is already added.
|
|
let id = v8Util.getHiddenValue(callback, 'callbackId')
|
|
if (id != null) return id
|
|
|
|
id = this.nextId += 1
|
|
|
|
// Capture the location of the function and put it in the ID string,
|
|
// so that release errors can be tracked down easily.
|
|
const regexp = /at (.*)/gi
|
|
const stackString = (new Error()).stack
|
|
|
|
let filenameAndLine
|
|
let match
|
|
|
|
while ((match = regexp.exec(stackString)) !== null) {
|
|
const location = match[1]
|
|
if (location.includes('(native)')) continue
|
|
if (location.includes('(<anonymous>)')) continue
|
|
if (location.includes('electron.asar')) continue
|
|
|
|
const ref = /([^/^)]*)\)?$/gi.exec(location)
|
|
filenameAndLine = ref[1]
|
|
break
|
|
}
|
|
this.callbacks[id] = callback
|
|
v8Util.setHiddenValue(callback, 'callbackId', id)
|
|
v8Util.setHiddenValue(callback, 'location', filenameAndLine)
|
|
return id
|
|
}
|
|
|
|
get (id) {
|
|
return this.callbacks[id] || function () {}
|
|
}
|
|
|
|
apply (id, ...args) {
|
|
return this.get(id).apply(global, ...args)
|
|
}
|
|
|
|
remove (id) {
|
|
const callback = this.callbacks[id]
|
|
if (callback) {
|
|
v8Util.deleteHiddenValue(callback, 'callbackId')
|
|
delete this.callbacks[id]
|
|
}
|
|
}
|
|
}
|
|
|
|
module.exports = CallbacksRegistry
|