Reborrow a few places where now necessary

See madsmtm/objc2#150 for a bit of background

Author: madsmtm

src/input/appkit.rs

@@ -13,25 +13,25 @@ use crate::utils::load;
 /// Called when editing this text field has ended (e.g. user pressed enter).
 extern "C" fn text_did_end_editing<T: TextFieldDelegate>(this: &mut Object, _: Sel, _info: id) {
     let view = load::<T>(this, TEXTFIELD_DELEGATE_PTR);
-    let s = NSString::retain(unsafe { msg_send![this, stringValue] });
+    let s = NSString::retain(unsafe { msg_send![&*this, stringValue] });
     view.text_did_end_editing(s.to_str());
 }
 
 extern "C" fn text_did_begin_editing<T: TextFieldDelegate>(this: &mut Object, _: Sel, _info: id) {
     let view = load::<T>(this, TEXTFIELD_DELEGATE_PTR);
-    let s = NSString::retain(unsafe { msg_send![this, stringValue] });
+    let s = NSString::retain(unsafe { msg_send![&*this, stringValue] });
     view.text_did_begin_editing(s.to_str());
 }
 
 extern "C" fn text_did_change<T: TextFieldDelegate>(this: &mut Object, _: Sel, _info: id) {
     let view = load::<T>(this, TEXTFIELD_DELEGATE_PTR);
-    let s = NSString::retain(unsafe { msg_send![this, stringValue] });
+    let s = NSString::retain(unsafe { msg_send![&*this, stringValue] });
     view.text_did_change(s.to_str());
 }
 
 extern "C" fn text_should_begin_editing<T: TextFieldDelegate>(this: &mut Object, _: Sel, _info: id) -> BOOL {
     let view = load::<T>(this, TEXTFIELD_DELEGATE_PTR);
-    let s = NSString::retain(unsafe { msg_send![this, stringValue] });
+    let s = NSString::retain(unsafe { msg_send![&*this, stringValue] });
 
     match view.text_should_begin_editing(s.to_str()) {
         true => YES,
@@ -41,7 +41,7 @@ extern "C" fn text_should_begin_editing<T: TextFieldDelegate>(this: &mut Object,
 
 extern "C" fn text_should_end_editing<T: TextFieldDelegate>(this: &mut Object, _: Sel, _info: id) -> BOOL {
     let view = load::<T>(this, TEXTFIELD_DELEGATE_PTR);
-    let s = NSString::retain(unsafe { msg_send![this, stringValue] });
+    let s = NSString::retain(unsafe { msg_send![&*this, stringValue] });
     match view.text_should_end_editing(s.to_str()) {
         true => YES,
         false => NO

src/view/controller/appkit.rs

@@ -13,7 +13,7 @@ use crate::view::{ViewDelegate, VIEW_DELEGATE_PTR};
 /// Called when the view controller receives a `viewWillAppear` message.
 extern "C" fn will_appear<T: ViewDelegate>(this: &mut Object, _: Sel) {
     unsafe {
-        let _: () = msg_send![super(this, class!(NSViewController)), viewWillAppear];
+        let _: () = msg_send![super(&mut *this, class!(NSViewController)), viewWillAppear];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);
@@ -23,7 +23,7 @@ extern "C" fn will_appear<T: ViewDelegate>(this: &mut Object, _: Sel) {
 /// Called when the view controller receives a `viewDidAppear` message.
 extern "C" fn did_appear<T: ViewDelegate>(this: &mut Object, _: Sel) {
     unsafe {
-        let _: () = msg_send![super(this, class!(NSViewController)), viewDidAppear];
+        let _: () = msg_send![super(&mut *this, class!(NSViewController)), viewDidAppear];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);
@@ -33,7 +33,7 @@ extern "C" fn did_appear<T: ViewDelegate>(this: &mut Object, _: Sel) {
 /// Called when the view controller receives a `viewWillDisappear` message.
 extern "C" fn will_disappear<T: ViewDelegate>(this: &mut Object, _: Sel) {
     unsafe {
-        let _: () = msg_send![super(this, class!(NSViewController)), viewWillDisappear];
+        let _: () = msg_send![super(&mut *this, class!(NSViewController)), viewWillDisappear];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);
@@ -43,7 +43,7 @@ extern "C" fn will_disappear<T: ViewDelegate>(this: &mut Object, _: Sel) {
 /// Called when the view controller receives a `viewDidDisappear` message.
 extern "C" fn did_disappear<T: ViewDelegate>(this: &mut Object, _: Sel) {
     unsafe {
-        let _: () = msg_send![super(this, class!(NSViewController)), viewDidDisappear];
+        let _: () = msg_send![super(&mut *this, class!(NSViewController)), viewDidDisappear];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);

src/view/controller/uikit.rs

@@ -13,7 +13,7 @@ use crate::view::{ViewDelegate, VIEW_DELEGATE_PTR};
 /// Called when the view controller receives a `viewWillAppear:` message.
 extern "C" fn will_appear<T: ViewDelegate>(this: &mut Object, _: Sel, animated: BOOL) {
     unsafe {
-        let _: () = msg_send![super(this, class!(UIViewController)), viewWillAppear: animated];
+        let _: () = msg_send![super(&mut *this, class!(UIViewController)), viewWillAppear: animated];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);
@@ -23,7 +23,7 @@ extern "C" fn will_appear<T: ViewDelegate>(this: &mut Object, _: Sel, animated:
 /// Called when the view controller receives a `viewDidAppear:` message.
 extern "C" fn did_appear<T: ViewDelegate>(this: &mut Object, _: Sel, animated: BOOL) {
     unsafe {
-        let _: () = msg_send![super(this, class!(UIViewController)), viewDidAppear: animated];
+        let _: () = msg_send![super(&mut *this, class!(UIViewController)), viewDidAppear: animated];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);
@@ -33,7 +33,7 @@ extern "C" fn did_appear<T: ViewDelegate>(this: &mut Object, _: Sel, animated: B
 /// Called when the view controller receives a `viewWillDisappear:` message.
 extern "C" fn will_disappear<T: ViewDelegate>(this: &mut Object, _: Sel, animated: BOOL) {
     unsafe {
-        let _: () = msg_send![super(this, class!(UIViewController)), viewWillDisappear: animated];
+        let _: () = msg_send![super(&mut *this, class!(UIViewController)), viewWillDisappear: animated];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);
@@ -43,7 +43,7 @@ extern "C" fn will_disappear<T: ViewDelegate>(this: &mut Object, _: Sel, animate
 /// Called when the view controller receives a `viewDidDisappear:` message.
 extern "C" fn did_disappear<T: ViewDelegate>(this: &mut Object, _: Sel, animated: BOOL) {
     unsafe {
-        let _: () = msg_send![super(this, class!(UIViewController)), viewDidDisappear: animated];
+        let _: () = msg_send![super(&mut *this, class!(UIViewController)), viewDidDisappear: animated];
     }
 
     let controller = load::<T>(this, VIEW_DELEGATE_PTR);