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‎.gitignore‎

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# Xcode
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#
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# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
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## Build generated
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build/
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DerivedData/
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## Various settings
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*.pbxuser
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!default.pbxuser
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*.mode1v3
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!default.mode1v3
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*.mode2v3
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!default.mode2v3
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*.perspectivev3
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!default.perspectivev3
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xcuserdata/
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## Other
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*.moved-aside
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*.xccheckout
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*.xcscmblueprint
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## Obj-C/Swift specific
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*.hmap
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*.ipa
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*.dSYM.zip
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*.dSYM
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## Playgrounds
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timeline.xctimeline
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playground.xcworkspace
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# Swift Package Manager
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#
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# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
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# Packages/
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# Package.pins
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.build/
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# CocoaPods
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#
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# We recommend against adding the Pods directory to your .gitignore. However
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# you should judge for yourself, the pros and cons are mentioned at:
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# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
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#
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# Pods/
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# Carthage
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#
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# Add this line if you want to avoid checking in source code from Carthage dependencies.
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# Carthage/Checkouts
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Carthage/Build
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# fastlane
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#
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# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
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# screenshots whenever they are needed.
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# For more information about the recommended setup visit:
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# https://docs.fastlane.tools/best-practices/source-control/#source-control
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fastlane/report.xml
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fastlane/Preview.html
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fastlane/screenshots
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fastlane/test_output

‎.gitmodules‎

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[submodule "CoreLayout/infrastructure/vendor/yoga"]
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path = CoreLayout/infrastructure/vendor/yoga
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url = [email protected]:facebook/yoga.git

‎CoreLayout.xcodeproj/project.pbxproj‎

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‎CoreLayout.xcodeproj/project.xcworkspace/contents.xcworkspacedata‎

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‎CoreLayout.xcodeproj/xcshareddata/xcschemes/CoreLayout.xcscheme‎

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<?xml version="1.0" encoding="UTF-8"?>
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<Scheme
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LastUpgradeVersion = "0900"
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version = "1.3">
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<BuildAction
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parallelizeBuildables = "YES"
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buildImplicitDependencies = "YES">
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<BuildActionEntries>
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<BuildActionEntry
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buildForTesting = "YES"
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buildForRunning = "YES"
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buildForProfiling = "YES"
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buildForArchiving = "YES"
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buildForAnalyzing = "YES">
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "301AB65C1EB031DD0053C287"
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BuildableName = "CoreLayout.framework"
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BlueprintName = "CoreLayout"
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ReferencedContainer = "container:CoreLayout.xcodeproj">
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</BuildableReference>
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</BuildActionEntry>
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</BuildActionEntries>
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</BuildAction>
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<TestAction
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buildConfiguration = "Debug"
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selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
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selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
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shouldUseLaunchSchemeArgsEnv = "YES">
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<Testables>
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<TestableReference
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skipped = "NO">
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "301AB6A91EB19FCE0053C287"
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BuildableName = "CoreLayoutTests.xctest"
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BlueprintName = "CoreLayoutTests"
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ReferencedContainer = "container:CoreLayout.xcodeproj">
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</BuildableReference>
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</TestableReference>
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</Testables>
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<MacroExpansion>
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "301AB65C1EB031DD0053C287"
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BuildableName = "CoreLayout.framework"
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BlueprintName = "CoreLayout"
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ReferencedContainer = "container:CoreLayout.xcodeproj">
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</BuildableReference>
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</MacroExpansion>
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<AdditionalOptions>
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</AdditionalOptions>
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</TestAction>
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<LaunchAction
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buildConfiguration = "Debug"
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selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
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selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
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launchStyle = "0"
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useCustomWorkingDirectory = "NO"
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ignoresPersistentStateOnLaunch = "NO"
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debugDocumentVersioning = "YES"
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debugServiceExtension = "internal"
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allowLocationSimulation = "YES">
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<MacroExpansion>
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "301AB65C1EB031DD0053C287"
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BuildableName = "CoreLayout.framework"
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BlueprintName = "CoreLayout"
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ReferencedContainer = "container:CoreLayout.xcodeproj">
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</BuildableReference>
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</MacroExpansion>
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<AdditionalOptions>
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</AdditionalOptions>
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</LaunchAction>
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<ProfileAction
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buildConfiguration = "Release"
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shouldUseLaunchSchemeArgsEnv = "YES"
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savedToolIdentifier = ""
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useCustomWorkingDirectory = "NO"
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debugDocumentVersioning = "YES">
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<MacroExpansion>
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "301AB65C1EB031DD0053C287"
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BuildableName = "CoreLayout.framework"
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BlueprintName = "CoreLayout"
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ReferencedContainer = "container:CoreLayout.xcodeproj">
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</BuildableReference>
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</MacroExpansion>
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</ProfileAction>
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<AnalyzeAction
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buildConfiguration = "Debug">
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</AnalyzeAction>
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<ArchiveAction
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buildConfiguration = "Release"
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revealArchiveInOrganizer = "YES">
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</ArchiveAction>
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</Scheme>

‎CoreLayout/ComputedLayout+CustomStringConvertible.swift‎

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//
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// ComputedLayout+CustomStringConvertible.swift
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// Steward
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//
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// Created by Jake Marsh on 10/2/16.
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// Copyright © 2016 Magnus. All rights reserved.
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//
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import Foundation
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extension ComputedLayout: CustomStringConvertible {
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public var description: String {
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return description(forDepth: 0)
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}
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public var debugDescription: String {
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return description(forDepth: 0)
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}
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private func description(forDepth depth: Int) -> String {
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let tab = " " // "\t"
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let indentation = depth == 0 ? "" : (0...depth).reduce("") { accum, _ in accum + tab }
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var d = ""
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d += indentation + "ComputedLayout("
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if children.count > 0 {
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d += "\n" + indentation
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d += tab
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}
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d += "frame: CGRect(x: \(frame.origin.x), y: \(frame.origin.y), width: \(frame.size.width), height: \(frame.size.height))"
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if children.count > 0 {
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d += ",\n\(indentation + tab)children: ["
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d += "\n" + (indentation) + (children.map { $0.description(forDepth: depth + 1) }).joined(separator: ",\n" + indentation)
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d += "\n\(indentation + tab)]"
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d += "\n\(indentation))"
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} else {
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d += ")"
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}
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return d
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}
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// private func description(forDepth depth: Int) -> String {
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// let selfDescription = "{origin={\(frame.origin.x), \(frame.origin.y)}, size={\(frame.size.width), \(frame.size.height)}}"
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//
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// if children.count > 0 {
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// let indentation = (0...depth).reduce("\n") { accum, _ in accum + "\t" }
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// let childrenDescription = (children.map { $0.description(forDepth: depth + 1) }).joined(separator: indentation)
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// return "\(selfDescription)\(indentation)\(childrenDescription)"
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// } else {
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// return selfDescription
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// }
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// }
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}

‎CoreLayout/ComputedLayout+QuickLook.swift‎

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//
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// ComputedLayout+QuickLook.swift
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// CoreLayout
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//
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// Created by Jake Marsh on 10/2/16.
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// Copyright © 2016 Jake Marsh. All rights reserved.
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//
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import Foundation
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#if os(iOS)
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public typealias DebugImageType = UIImage
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#elseif os(macOS)
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public typealias DebugImageType = NSImage
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#endif
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extension ComputedLayout {
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// @objc
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public func debugQuickLookObject() -> UIImage {
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return generateQuickLookImage()!
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}
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public static let debugIdentifierFont = UIFont.monospacedDigitSystemFont(ofSize: 14.0, weight: UIFontWeightSemibold)
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public func generateQuickLookImage() -> DebugImageType? {
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let drawRect = frame.insetBy(dx: -8, dy: -8)
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#if os(iOS)
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UIGraphicsBeginImageContextWithOptions(drawRect.size, true, 2.0)
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let c = UIGraphicsGetCurrentContext()
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let strokeColor = UIColor(red: 0.10, green: 0.41, blue: 1.0, alpha: 1.0)
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let fillColor = strokeColor.withAlphaComponent(0.15)
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UIColor.white.setFill()
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UIRectFill(CGRect(x: 0, y: 0, width: drawRect.size.width, height: drawRect.size.height))
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func draw(layout: ComputedLayout, offset: CGPoint) {
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let layoutFrame = layout.frame.integral.offsetBy(dx: offset.x, dy: offset.y)
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let childOffset = layoutFrame.origin
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fillColor.setFill()
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UIBezierPath(roundedRect: layoutFrame, cornerRadius: 2).fill()
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strokeColor.setStroke()
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UIBezierPath(roundedRect: layoutFrame, cornerRadius: 2).stroke()
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if let identifier = layout.identifier {
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let font = ComputedLayout.debugIdentifierFont
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var textRect = layoutFrame
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textRect.origin.y = textRect.origin.y + ((textRect.size.height - font.pointSize) / 2)
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// textRect.origin.y = 0
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let style = NSMutableParagraphStyle()
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style.alignment = .center
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(identifier as NSString).draw(in: textRect, withAttributes: [
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NSParagraphStyleAttributeName : style,
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NSFontAttributeName : font,
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NSForegroundColorAttributeName : strokeColor
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])
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}
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for child in layout.children {
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draw(layout: child, offset: childOffset)
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}
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}
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draw(layout: self, offset: CGPoint(x: 8, y: 8))
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let image = UIGraphicsGetImageFromCurrentImageContext()
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UIGraphicsEndImageContext()
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#elseif os(macOS)
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// TODO
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#endif
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return image
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}
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}
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extension ComputedLayout : CustomPlaygroundQuickLookable {
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public var customPlaygroundQuickLook: PlaygroundQuickLook { return .image(generateQuickLookImage()!) }
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}

‎CoreLayout/ComputedLayout.swift‎

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//
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// ComputedLayout.swift
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// CoreLayout
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//
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// Created by Jake Marsh on 8/8/16.
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// Copyright © 2016 Magnus. All rights reserved.
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//
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import Foundation
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public struct ComputedLayout {
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public var identifier: String? = nil
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public var frame: CGRect
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public let children: [ComputedLayout]
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public init(identifier: String? = nil, frame: CGRect, children: [ComputedLayout] = []) {
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self.identifier = identifier
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self.frame = frame
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self.children = children
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}
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}
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extension ComputedLayout : Equatable {
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public static func ==(lhs: ComputedLayout, rhs: ComputedLayout) -> Bool {
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return lhs.frame == rhs.frame && lhs.children == rhs.children
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}
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}

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