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