Merge pull request #366 from mashe/feature/Support_of_mutable_cellViewModel

Adding support of mutable CellViewModels

Author: bigMOTOR

.travis.yml

@@ -1,6 +1,6 @@
 language: objective-c
 
-osx_image: xcode10.2
+osx_image: xcode11.5
 
 notifications:
   slack: rxswift:3ykt2Z61f8GkdvhCZTYPduOL
@@ -10,9 +10,9 @@ install: true
 
 env:
   - BUILD="brew install swiftlint"
-  - BUILD="carthage update --platform iOS && pushd Examples && set -o pipefail && (xcodebuild -project Example.xcodeproj -scheme ExampleUITests -configuration Release -destination 'platform=iOS Simulator,name=iPhone 7' test && xcodebuild -project   Example.xcodeproj   -scheme Example -configuration Release -destination 'platform=iOS Simulator,name=iPhone 7' build) | xcpretty"
-  - BUILD="carthage update --platform ios && set -o pipefail && (xcodebuild -project   RxDataSources.xcodeproj   -scheme Tests -configuration Release -destination 'platform=iOS Simulator,name=iPhone 7' test) | xcpretty"
-  - BUILD="gem install cocoapods --pre --no-rdoc --no-ri --no-document --quiet; pod repo update && pod lib lint RxDataSources.podspec --verbose && pod lib lint Differentiator.podspec --verbose "
+  - BUILD="carthage update --platform iOS && pushd Examples && set -o pipefail && (xcodebuild -project Example.xcodeproj -scheme ExampleUITests -configuration Release -destination 'platform=iOS Simulator,name=iPhone 8' test && xcodebuild -project   Example.xcodeproj   -scheme Example -configuration Release -destination 'platform=iOS Simulator,name=iPhone 8' build) | xcpretty"
+  - BUILD="carthage update --platform iOS && set -o pipefail && (xcodebuild -project   RxDataSources.xcodeproj   -scheme Tests -configuration Release -destination 'platform=iOS Simulator,name=iPhone 8' test) | xcpretty"
+  - BUILD="gem install cocoapods --pre --no-document --quiet; pod repo update && pod lib lint RxDataSources.podspec --verbose && pod lib lint Differentiator.podspec --verbose "
   - BUILD="carthage update --platform iOS  && carthage build --no-skip-current --platform iOS"
   - BUILD="carthage update --platform tvOS && carthage build --no-skip-current --platform tvOS"
   - BUILD="swift test"

CHANGELOG.md

@@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file.
 
 #### Master
 
+* Added support of mutable CellViewModels.
+
 ## [4.0.1](https://github.com/RxSwiftCommunity/RxDataSources/releases/tag/4.0.1)
 
 * Fixes Carthage integration and reverts static frameworks to dynamic frameworks.

Sources/Differentiator/Diff.swift

@@ -623,8 +623,10 @@ public enum Diff {
                         let finalItem = finalItemCache[finalItemIndex.sectionIndex][finalItemIndex.itemIndex]
                         if finalItem != initialSections[i].items[j] {
                             updatedItems.append(ItemPath(sectionIndex: i, itemIndex: j))
+                            afterDeleteItems.append(finalItem)
+                        } else {
+                            afterDeleteItems.append(initialSections[i].items[j])
                         }
-                        afterDeleteItems.append(finalItem)
                     default:
                         try precondition(false, "Unhandled case")
                     }