Merge pull request #1917 from millenomi/operation-kvc-extra-shims

swift-ci · web-flow · commit df3196b544e0 · 2019-02-14T20:38:20.000-08:00
diff --git a/Foundation/Operation.swift b/Foundation/Operation.swift
@@ -186,6 +186,16 @@ extension Operation {
             finish()
         }
     }
+    
+    public func willChangeValue<Value>(for keyPath: KeyPath<Operation, Value>) {
+        // do nothing
+    }
+    
+    public func didChangeValue<Value>(for keyPath: KeyPath<Operation, Value>) {
+        if keyPath == \Operation.isFinished {
+            finish()
+        }
+    }
 }
 
 extension Operation {

Original file line number	Diff line number	Diff line change
`@@ -186,6 +186,16 @@ extension Operation {`
`186`	`186`	`finish()`
`187`	`187`	`}`
`188`	`188`	`}`
	`189`	`+`
	`190`	`+ public func willChangeValue<Value>(for keyPath: KeyPath<Operation, Value>) {`
	`191`	`+ // do nothing`
	`192`	`+ }`
	`193`	`+`
	`194`	`+ public func didChangeValue<Value>(for keyPath: KeyPath<Operation, Value>) {`
	`195`	`+ if keyPath == \Operation.isFinished {`
	`196`	`+ finish()`
	`197`	`+ }`
	`198`	`+ }`
`189`	`199`	`}`
`190`	`200`
`191`	`201`	`extension Operation {`