RxCocoa: Rename O to Observer when applicable

RxCocoa/Common/Observable+Bind.swift

@@ -16,7 +16,7 @@ extension ObservableType {
      - parameter to: Observers to receives events.
      - returns: Disposable object that can be used to unsubscribe the observers.
      */
-    public func bind<O: ObserverType>(to observers: O...) -> Disposable where O.Element == Element {
+    public func bind<Observer: ObserverType>(to observers: Observer...) -> Disposable where Observer.Element == Element {
         return self.bind(to: observers)
     }
 
@@ -27,7 +27,7 @@ extension ObservableType {
      - parameter to: Observers to receives events.
      - returns: Disposable object that can be used to unsubscribe the observers.
      */
-    public func bind<O: ObserverType>(to observers: O...) -> Disposable where O.Element == Element? {
+    public func bind<Observer: ObserverType>(to observers: Observer...) -> Disposable where Observer.Element == Element? {
         return self.map { $0 as Element? }.bind(to: observers)
     }
 
@@ -38,7 +38,7 @@ extension ObservableType {
      - parameter to: Observers to receives events.
      - returns: Disposable object that can be used to unsubscribe the observers.
      */
-    private func bind<O: ObserverType>(to observers: [O]) -> Disposable where O.Element == Element {
+    private func bind<Observer: ObserverType>(to observers: [Observer]) -> Disposable where Observer.Element == Element {
         return self.subscribe { event in
             observers.forEach { $0.on(event) }
         }

RxCocoa/Deprecated.swift

@@ -22,7 +22,7 @@ extension ObservableType {
      - returns: Disposable object that can be used to unsubscribe the observer.
      */
     @available(*, deprecated, renamed: "bind(to:)")
-    public func bindTo<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element {
+    public func bindTo<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element {
         return self.subscribe(observer)
     }
 
@@ -36,7 +36,7 @@ extension ObservableType {
      - returns: Disposable object that can be used to unsubscribe the observer.
      */
     @available(*, deprecated, renamed: "bind(to:)")
-    public func bindTo<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element? {
+    public func bindTo<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element? {
         return self.map { $0 }.subscribe(observer)
     }
 

RxCocoa/Foundation/NSObject+Rx.swift

@@ -383,7 +383,7 @@ fileprivate final class KVOObservable<Element>
         }
     }
 
-    func subscribe<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element? {
+    func subscribe<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element? {
         let observer = KVOObserver(parent: self) { value in
             if value as? NSNull != nil {
                 observer.on(.next(nil))

RxCocoa/Traits/ControlEvent.swift

@@ -53,7 +53,7 @@ public struct ControlEvent<PropertyType> : ControlEventType {
     ///
     /// - parameter observer: Observer to subscribe to events.
     /// - returns: Disposable object that can be used to unsubscribe the observer from receiving control events.
-    public func subscribe<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element {
+    public func subscribe<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element {
         return self._events.subscribe(observer)
     }
 

RxCocoa/Traits/ControlProperty.swift

@@ -62,7 +62,7 @@ public struct ControlProperty<PropertyType> : ControlPropertyType {
     ///
     /// - parameter observer: Observer to subscribe to property values.
     /// - returns: Disposable object that can be used to unsubscribe the observer from receiving control property values.
-    public func subscribe<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element {
+    public func subscribe<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element {
         return self._values.subscribe(observer)
     }
 

RxCocoa/Traits/Driver/Driver+Subscription.swift

@@ -22,7 +22,7 @@ extension SharedSequenceConvertibleType where SharingStrategy == DriverSharingSt
     - parameter observer: Observer that receives events.
     - returns: Disposable object that can be used to unsubscribe the observer from the subject.
     */
-    public func drive<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element {
+    public func drive<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element {
         MainScheduler.ensureRunningOnMainThread(errorMessage: errorMessage)
         return self.asSharedSequence().asObservable().subscribe(observer)
     }
@@ -36,7 +36,7 @@ extension SharedSequenceConvertibleType where SharingStrategy == DriverSharingSt
      - parameter observer: Observer that receives events.
      - returns: Disposable object that can be used to unsubscribe the observer from the subject.
      */
-    public func drive<O: ObserverType>(_ observer: O) -> Disposable where O.Element == Element? {
+    public func drive<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element? {
         MainScheduler.ensureRunningOnMainThread(errorMessage: errorMessage)
         return self.asSharedSequence().asObservable().map { $0 as Element? }.subscribe(observer)
     }

RxCocoa/Traits/Signal/Signal+Subscription.swift

@@ -18,7 +18,7 @@ extension SharedSequenceConvertibleType where SharingStrategy == SignalSharingSt
      - parameter to: Observer that receives events.
      - returns: Disposable object that can be used to unsubscribe the observer from the subject.
      */
-    public func emit<O: ObserverType>(to observer: O) -> Disposable where O.Element == Element {
+    public func emit<Observer: ObserverType>(to observer: Observer) -> Disposable where Observer.Element == Element {
         return self.asSharedSequence().asObservable().subscribe(observer)
     }
 
@@ -30,7 +30,7 @@ extension SharedSequenceConvertibleType where SharingStrategy == SignalSharingSt
      - parameter to: Observer that receives events.
      - returns: Disposable object that can be used to unsubscribe the observer from the subject.
      */
-    public func emit<O: ObserverType>(to observer: O) -> Disposable where O.Element == Element? {
+    public func emit<Observer: ObserverType>(to observer: Observer) -> Disposable where Observer.Element == Element? {
         return self.asSharedSequence().asObservable().map { $0 as Element? }.subscribe(observer)
     }