Fix "extra mut" warning

Author: GuillaumeGomez

src/boxed.rs

@@ -366,10 +366,10 @@ impl<T: 'static, MM: BoxedMemoryManager<T>> Uninitialized for Boxed<T, MM> {
     unsafe fn uninitialized() -> Self {
         Boxed {
             inner: {
-                let mut inner = Box::<T>::new(mem::MaybeUninit::zeroed().assume_init());
-                MM::init(&mut *inner);
+                let mut inner = mem::MaybeUninit::zeroed();
+                MM::init(inner.as_mut_ptr());
 
-                AnyBox::Native(inner)
+                AnyBox::Native(Box::new(inner.assume_init()))
             },
             _dummy: PhantomData,
         }

src/closure.rs

@@ -93,7 +93,7 @@ impl Closure {
         let mut result = unsafe { Value::uninitialized() };
 
         let v_args: Vec<Value>;
-        let mut s_args: [Value; 10] = unsafe { mem::MaybeUninit::zeroed().assume_init() };
+        let mut s_args: [Value; 10] = unsafe { mem::zeroed() };
         let values = if values.len() <= 10 {
             for (i, arg) in values.iter().enumerate() {
                 s_args[i] = arg.to_value();

src/object.rs

@@ -1391,7 +1391,7 @@ impl<T: ObjectType> ObjectExt for T {
             }
 
             let mut v_args: Vec<Value>;
-            let mut s_args: [Value; 10] = mem::MaybeUninit::zeroed().assume_init();
+            let mut s_args: [Value; 10] = mem::zeroed();
             let self_v = {
                 let mut v = Value::uninitialized();
                 gobject_sys::g_value_init(v.to_glib_none_mut().0, self.get_type().to_glib());
@@ -1438,7 +1438,7 @@ impl<T: ObjectType> ObjectExt for T {
 
     fn downgrade(&self) -> WeakRef<T> {
         unsafe {
-            let w = WeakRef(Box::new(mem::MaybeUninit::zeroed().assume_init()), PhantomData);
+            let w = WeakRef(Box::new(mem::zeroed()), PhantomData);
             gobject_sys::g_weak_ref_init(
                 mut_override(&*w.0),
                 self.as_object_ref().to_glib_none().0,
@@ -1532,7 +1532,7 @@ pub struct WeakRef<T: ObjectType>(Box<gobject_sys::GWeakRef>, PhantomData<*const
 impl<T: ObjectType> WeakRef<T> {
     pub fn new() -> WeakRef<T> {
         unsafe {
-            let w = WeakRef(Box::new(mem::MaybeUninit::zeroed().assume_init()), PhantomData);
+            let w = WeakRef(Box::new(mem::zeroed()), PhantomData);
             gobject_sys::g_weak_ref_init(mut_override(&*w.0), ptr::null_mut());
             w
         }
@@ -1562,7 +1562,7 @@ impl<T: ObjectType> Drop for WeakRef<T> {
 impl<T: ObjectType> Clone for WeakRef<T> {
     fn clone(&self) -> Self {
         unsafe {
-            let c = WeakRef(Box::new(mem::MaybeUninit::zeroed().assume_init()), PhantomData);
+            let c = WeakRef(Box::new(mem::zeroed()), PhantomData);
 
             let o = gobject_sys::g_weak_ref_get(mut_override(&*self.0));
             gobject_sys::g_weak_ref_init(mut_override(&*c.0), o);

src/time_val.rs

@@ -27,6 +27,6 @@ impl<'a> ToGlibPtrMut<'a, *mut glib_sys::GTimeVal> for TimeVal {
 
 impl Uninitialized for TimeVal {
     unsafe fn uninitialized() -> TimeVal {
-        mem::MaybeUninit::zeroed().assume_init()
+        mem::zeroed()
     }
 }

src/value.rs

@@ -199,7 +199,7 @@ impl Value {
     }
 
     #[doc(hidden)]
-    pub fn into_raw(mut self) -> gobject_sys::GValue {
+    pub fn into_raw(self) -> gobject_sys::GValue {
         unsafe {
             let ret = ptr::read(&self.0);
             mem::forget(self);
@@ -273,7 +273,7 @@ impl From<SendValue> for Value {
 
 impl Uninitialized for Value {
     unsafe fn uninitialized() -> Value {
-        Value(mem::MaybeUninit::zeroed().assume_init(), PhantomData)
+        mem::zeroed()
     }
 }