{
	"id": "171652",
	"key": "TIMOB-26038",
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			"description": "gh.issue.epic.desc",
			"name": "Epic",
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		},
		"project": {
			"id": "10153",
			"key": "TIMOB",
			"name": "Titanium SDK/CLI",
			"projectCategory": {
				"id": "10100",
				"description": "Titanium and related SDKs used in application development",
				"name": "Client"
			}
		},
		"fixVersions": [],
		"resolution": null,
		"resolutiondate": null,
		"created": "2018-05-14T19:24:24.000+0000",
		"priority": {
			"name": "High",
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		},
		"labels": [],
		"versions": [],
		"issuelinks": [
			{
				"id": "56541",
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					"id": "10003",
					"name": "Relates",
					"inward": "relates to",
					"outward": "relates to"
				},
				"outwardIssue": {
					"id": "110276",
					"key": "TIMOB-12873",
					"fields": {
						"summary": "iOS: Optimize Kroll string usage",
						"status": {
							"description": "The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.",
							"name": "Closed",
							"id": "6",
							"statusCategory": {
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								"colorName": "green",
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							"name": "Low",
							"id": "4"
						},
						"issuetype": {
							"id": "5",
							"description": "The sub-task of the issue",
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				},
				"outwardIssue": {
					"id": "105164",
					"key": "TIMOB-11812",
					"fields": {
						"summary": "iOS: Optimize bridge-crossing instances in Titanium Mobile API",
						"status": {
							"description": "The issue is open and ready for the assignee to start work on it.",
							"name": "Open",
							"id": "1",
							"statusCategory": {
								"id": 2,
								"key": "new",
								"colorName": "blue-gray",
								"name": "To Do"
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				"outwardIssue": {
					"id": "113592",
					"key": "TIMOB-13729",
					"fields": {
						"summary": "Create JavaScript benchmark suite specific to Titanium use cases",
						"status": {
							"description": "The issue is open and ready for the assignee to start work on it.",
							"name": "Open",
							"id": "1",
							"statusCategory": {
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							"name": "Low",
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						"issuetype": {
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			{
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					"inward": "relates to",
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				"outwardIssue": {
					"id": "173632",
					"key": "TIMOB-27082",
					"fields": {
						"summary": "iOS: Modules using TiBlob and built before SDK 8.1 causing app crash",
						"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",
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						"priority": {
							"name": "High",
							"id": "2"
						},
						"issuetype": {
							"id": "1",
							"description": "A problem which impairs or prevents the functions of the product.",
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				}
			},
			{
				"id": "57645",
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					"inward": "relates to",
					"outward": "relates to"
				},
				"outwardIssue": {
					"id": "173642",
					"key": "TIMOB-27089",
					"fields": {
						"summary": "iOS: App crashes when asking for location permissions (SDK 8.1.0+)",
						"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",
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						"priority": {
							"name": "High",
							"id": "2"
						},
						"issuetype": {
							"id": "1",
							"description": "A problem which impairs or prevents the functions of the product.",
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						}
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				}
			},
			{
				"id": "56543",
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					"inward": "relates to",
					"outward": "relates to"
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				"outwardIssue": {
					"id": "110049",
					"key": "TIMOB-12827",
					"fields": {
						"summary": "iOS: Simple native performance optimizations",
						"status": {
							"description": "The issue is open and ready for the assignee to start work on it.",
							"name": "Open",
							"id": "1",
							"statusCategory": {
								"id": 2,
								"key": "new",
								"colorName": "blue-gray",
								"name": "To Do"
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						},
						"priority": {
							"name": "Low",
							"id": "4"
						},
						"issuetype": {
							"id": "7",
							"description": "gh.issue.story.desc",
							"name": "Story",
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				}
			},
			{
				"id": "56539",
				"type": {
					"id": "10003",
					"name": "Relates",
					"inward": "relates to",
					"outward": "relates to"
				},
				"outwardIssue": {
					"id": "110903",
					"key": "TIMOB-13011",
					"fields": {
						"summary": "Optimize Kroll hotspots",
						"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",
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						"priority": {
							"name": "Critical",
							"id": "1"
						},
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				}
			},
			{
				"id": "56679",
				"type": {
					"id": "10003",
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					"inward": "relates to",
					"outward": "relates to"
				},
				"inwardIssue": {
					"id": "171876",
					"key": "TIMOB-26179",
					"fields": {
						"summary": "iOS: Property check on proxy always returns true",
						"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",
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						},
						"priority": {
							"name": "Critical",
							"id": "1"
						},
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							"id": "1",
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			},
			{
				"id": "57604",
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				},
				"inwardIssue": {
					"id": "81773",
					"key": "TIMOB-5818",
					"fields": {
						"summary": "Ti API: View proxies should behave like real JS objects - or they should be wrapped",
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							"description": "The issue is open and ready for the assignee to start work on it.",
							"name": "Open",
							"id": "1",
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								"id": 2,
								"key": "new",
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							"name": "Medium",
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							"id": "2",
							"description": "A new feature of the product, which has yet to be developed.",
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					}
				}
			},
			{
				"id": "57605",
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					"id": "10003",
					"name": "Relates",
					"inward": "relates to",
					"outward": "relates to"
				},
				"inwardIssue": {
					"id": "143672",
					"key": "TIMOB-18465",
					"fields": {
						"summary": "Globals are not (over)writable",
						"status": {
							"description": "The issue is open and ready for the assignee to start work on it.",
							"name": "Open",
							"id": "1",
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								"key": "new",
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						"priority": {
							"name": "None",
							"id": "6"
						},
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							"name": "Improvement",
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				}
			}
		],
		"assignee": {
			"name": "cwilliams",
			"key": "cwilliams",
			"displayName": "Christopher Williams",
			"active": true,
			"timeZone": "America/New_York"
		},
		"updated": "2019-05-21T00:02:37.000+0000",
		"status": {
			"description": "This issue is being actively worked on at the moment by the assignee.",
			"name": "In Progress",
			"id": "3",
			"statusCategory": {
				"id": 4,
				"key": "indeterminate",
				"colorName": "yellow",
				"name": "In Progress"
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		},
		"components": [
			{
				"id": "10206",
				"name": "iOS",
				"description": "iOS Platform"
			}
		],
		"description": "We currently make use of the \"legacy\" C API for JavaScriptCore. In the past few years Apple has made a much nicer Obj-C API to the framework which makes it much simpler to expose native objects to JavaScript. We already attempt to make use of this in HAL/Windows, though it's lower level, while the Obj-C API transparently does the bindings for us.\r\n\r\n- https://developer.apple.com/documentation/javascriptcore?language=objc\r\n- https://www.steamclock.com/blog/2013/05/apple-objective-c-javascript-bridge/\r\n- http://asciiwwdc.com/2013/sessions/615\r\n\r\nMore:\r\n- https://github.com/phoboslab/JavaScriptCore-iOS/blob/master/JavaScriptCore/API/tests/testapi.mm\r\n- https://github.com/WebKit/webkit/blob/dd7199d7f8f417992f60c9f1514e4b548ec923fb/Source/JavaScriptCore/API/JSWrapperMap.mm",
		"attachment": [],
		"flagged": false,
		"summary": "iOS: Move from legacy JavaScriptCore C Api to Obj-C API",
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			"name": "cwilliams",
			"key": "cwilliams",
			"displayName": "Christopher Williams",
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			"timeZone": "America/New_York"
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			"name": "cwilliams",
			"key": "cwilliams",
			"displayName": "Christopher Williams",
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			"timeZone": "America/New_York"
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		"environment": null,
		"comment": {
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				{
					"id": "437737",
					"author": {
						"name": "cwilliams",
						"key": "cwilliams",
						"displayName": "Christopher Williams",
						"active": true,
						"timeZone": "America/New_York"
					},
					"body": "Note also that our implementation using the JavaScriptCore C API is not very well tuned. The iOS implementation behaves similarly to how Android hyperloop does: with a generic KrollObject that is exported/bound to JS with native callbacks for getProperty/setProperty/etc which then uses the equivalent of \"reflection\" to delegate to the wrapped Obj-C instance.\r\n\r\nThe new JSExport API offers a similar proxy writing API as we currently do, but actually generates the correct bindings at the property/function level on a defined JS class specific to the Obj-C class. This avoid the need for our custom routing of calls through a generic getProperty impl, for example.\r\n\r\nWhat it does not handle though is:\r\n- indexed property access (like we use in Ti.Buffer)\r\n- setting static values for properties (i.e. we often return a static string/value for APIs such as Ti.Platform.manufacturer, JSExport will still delegate that into a method call, but using the C API we could just set a static value for that property on the JS side).",
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					},
					"created": "2018-05-17T17:23:44.000+0000",
					"updated": "2018-05-17T17:23:44.000+0000"
				}
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