{
	"id": "176143",
	"key": "TIMOB-28412",
	"fields": {
		"issuetype": {
			"id": "4",
			"description": "An improvement or enhancement to an existing feature or task.",
			"name": "Improvement",
			"subtask": false
		},
		"project": {
			"id": "10153",
			"key": "TIMOB",
			"name": "Titanium SDK/CLI",
			"projectCategory": {
				"id": "10100",
				"description": "Titanium and related SDKs used in application development",
				"name": "Client"
			}
		},
		"fixVersions": [
			{
				"id": "21199",
				"description": "",
				"name": "Release 10.0.1",
				"archived": false,
				"released": true,
				"releaseDate": "2021-07-28"
			}
		],
		"resolution": {
			"id": "1",
			"description": "A fix for this issue is checked into the tree and tested.",
			"name": "Fixed"
		},
		"resolutiondate": "2021-06-17T11:53:30.000+0000",
		"created": "2021-04-02T01:43:38.000+0000",
		"priority": {
			"name": "Medium",
			"id": "3"
		},
		"labels": [
			"async",
			"iOS",
			"performance",
			"promise"
		],
		"versions": [],
		"issuelinks": [],
		"assignee": {
			"name": "jquick",
			"key": "jquick",
			"displayName": "Joshua Quick",
			"active": true,
			"timeZone": "America/Los_Angeles"
		},
		"updated": "2021-06-17T11:53:30.000+0000",
		"status": {
			"description": "The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.",
			"name": "Closed",
			"id": "6",
			"statusCategory": {
				"id": 3,
				"key": "done",
				"colorName": "green",
				"name": "Done"
			}
		},
		"components": [
			{
				"id": "10206",
				"name": "iOS",
				"description": "iOS Platform"
			}
		],
		"description": "*Summary:*\r\nOn iOS 12 and older versions, there is no native API to create a JavaScript {{Promise}}. So, we create promises via a JS {{eval()}} as shown below...\r\nhttps://github.com/appcelerator/titanium_mobile/blob/master/iphone/TitaniumKit/TitaniumKit/Sources/Kroll/KrollPromise.m#L35-L49\r\n\r\n*To-Do:*\r\nWe should optimize this so that we don't do an {{eval()}} every time a promise needs to be created. Simplest solution is to only create the JS promise handling function once and re-use it.\r\n\r\n*Note:*\r\nApple documents that {{evaluateScript()}} will add function/variable definitions permanently to the global context.\r\nhttps://developer.apple.com/documentation/javascriptcore/jscontext/1451350-evaluatescript\r\n\r\nThis means we should use a unique prefixing convention to avoid collision.\r\n\r\nAlso, every time we define our JS {{executor()}} and {{createPromise()}} functions, theoretically we're slowly bloating the JS global context with these re-definitions. This may be a slow memory leak.",
		"attachment": [],
		"flagged": false,
		"summary": "iOS: Optimize JS Promise creation on iOS 12",
		"creator": {
			"name": "jquick",
			"key": "jquick",
			"displayName": "Joshua Quick",
			"active": true,
			"timeZone": "America/Los_Angeles"
		},
		"subtasks": [],
		"reporter": {
			"name": "jquick",
			"key": "jquick",
			"displayName": "Joshua Quick",
			"active": true,
			"timeZone": "America/Los_Angeles"
		},
		"environment": null,
		"comment": {
			"comments": [
				{
					"id": "458519",
					"author": {
						"name": "jquick",
						"key": "jquick",
						"displayName": "Joshua Quick",
						"active": true,
						"timeZone": "America/Los_Angeles"
					},
					"body": "PR (master): https://github.com/appcelerator/titanium_mobile/pull/12684",
					"updateAuthor": {
						"name": "jquick",
						"key": "jquick",
						"displayName": "Joshua Quick",
						"active": true,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2021-04-02T01:54:23.000+0000",
					"updated": "2021-04-02T01:54:23.000+0000"
				},
				{
					"id": "458795",
					"author": {
						"name": "eharris",
						"key": "eharris",
						"displayName": "Ewan Harris",
						"active": true,
						"timeZone": "Europe/Dublin"
					},
					"body": "master and backport merged",
					"updateAuthor": {
						"name": "eharris",
						"key": "eharris",
						"displayName": "Ewan Harris",
						"active": true,
						"timeZone": "Europe/Dublin"
					},
					"created": "2021-06-17T11:53:25.000+0000",
					"updated": "2021-06-17T11:53:25.000+0000"
				}
			],
			"maxResults": 2,
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		}
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}