Add 'Keys' API to Multidictionary

CodaFi · CodaFi · commit 41aec371d16a · 2021-02-01T13:29:18.000-08:00
diff --git a/Sources/SwiftDriver/IncrementalCompilation/Multidictionary.swift b/Sources/SwiftDriver/IncrementalCompilation/Multidictionary.swift
@@ -53,6 +53,11 @@ struct Multidictionary<Key: Hashable, Value: Hashable>: Collection, Equatable {
       return (key: key, value: vals[innerIndex])
     }
   }
+
+  /// A collection containing just the keys of this multi-dictionary.
+  public var keys: OuterDict.Keys {
+    return self.outerDict.keys
+  }
   
   public subscript(key: Key) -> (key: Key, values: Set<Value>)? {
     outerDict[key].map { (key: key, values: $0) }

Original file line number	Diff line number	Diff line change
`@@ -53,6 +53,11 @@ struct Multidictionary<Key: Hashable, Value: Hashable>: Collection, Equatable {`
`53`	`53`	`return (key: key, value: vals[innerIndex])`
`54`	`54`	`}`
`55`	`55`	`}`
	`56`	`+`
	`57`	`+ /// A collection containing just the keys of this multi-dictionary.`
	`58`	`+ public var keys: OuterDict.Keys {`
	`59`	`+ return self.outerDict.keys`
	`60`	`+ }`
`56`	`61`
`57`	`62`	`public subscript(key: Key) -> (key: Key, values: Set<Value>)? {`
`58`	`63`	`outerDict[key].map { (key: key, values: $0) }`