OperationTimelane ß

Note: Pre 1.0 software.

OperationTimelane provides an API allowing you to debug your Operation based asynchronous code visually in the Timelane Instrument.

Contents:

• Usage
• API Reference
• Installation
• Demo
• License

Usage

Before getting started

1. Download the latest release of the Timelane Instrument and install it on your computer: http://timelane.tools/#download.
2. Add the OperationTimelane package to your Xcode project like described in the Installation section.

Debugging specific operation

Import the OperationTimelane framework in your code:

import OperationTimelane

Use the lane(_) function to "activate" an operation for debugging in Timelane when you are creating the operation:

let op = MyOperation().lane("My Operation")

Then profile your project by clicking Product > Profile in Xcode's main menu.

Select the Timelane Instrument template:

Inspect your operations on the interactive timeline:

Debugging specific operation queue

OperationTimelane offers a custom operation queue which automatically logs any added operations in Timelane. (No swizzling in favor of a custom type.)

Create a LaneOperationQueue (in other words replace your existing queue with) like so and then add operations as usual:

let myQueue = LaneOperationQueue(name: "My Queue")

myQueue.addOperation(...)
myQueue.addOperation(...)
myQueue.addOperation(...)

All of the added operations will be visualized in Timelane like in the previous section.

For a more detailed walkthrough go to http://timelane.tools.

API Reference

Operation.lane(_:filter:)

Use lane("Lane name") to send data to both the subscriptions and events lanes in the Timelane Instrument.

lane("Lane name", filter: [.subscriptions]) sends begin/completion events to the Subscriptions lane.

lane("Lane name", filter: [.events]) sends events and values to the Events lane.

Operation.laneValue(_)

Use this function if you want to log a value for the current operation in Timelane.

LaneOperationQueue

Temporarily replace your own operation queue with this type to debug its operations in Timelane.

Installation

Swift Package Manager

I . Automatically in Xcode:

• Click File > Swift Packages > Add Package Dependency...
• Use the package URL https://github.com/icanzilb/OperationTimelane to add TimelaneCombine to your project.

II . Manually in your Package.swift file add:

.package(url: "https://github.com/icanzilb/OperationTimelane", from: "1.0.0")

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate OperationTimelane into your Xcode project using CocoaPods, add it to your Podfile:

pod 'OperationTimelane', '~> 1.0'

Demo

TODO: This repo contains a simple demo app. To give it a try open OperationTimelaneExample/OperationTimelane.xcodeproj and run the "OperationTimelaneDemo" scheme.

License

Copyright (c) Marin Todorov 2020 This package is provided under the MIT License.