unsafe things.

Author: lygstate

library/alloc/src/io/buffered/bufreader.rs

@@ -290,7 +290,7 @@ impl<R: Read> Read for BufReader<R> {
 
     // we can't skip unconditionally because of the large buffer case in read.
     unsafe fn initializer(&self) -> Initializer {
-        self.inner.initializer()
+        unsafe { (*self).initializer() }
     }
 }
 

library/alloc/src/io/cursor.rs

@@ -278,7 +278,7 @@ where
 
     #[inline]
     unsafe fn initializer(&self) -> Initializer {
-        Initializer::nop()
+        unsafe { Initializer::nop() }
     }
 }
 

library/alloc/src/io/impls.rs

@@ -30,7 +30,7 @@ impl<R: Read + ?Sized> Read for &mut R {
 
     #[inline]
     unsafe fn initializer(&self) -> Initializer {
-        (**self).initializer()
+        unsafe { (**self).initializer() }
     }
 
     #[inline]
@@ -129,7 +129,7 @@ impl<R: Read + ?Sized> Read for Box<R> {
 
     #[inline]
     unsafe fn initializer(&self) -> Initializer {
-        (**self).initializer()
+        unsafe { (**self).initializer() }
     }
 
     #[inline]
@@ -270,7 +270,7 @@ impl Read for &[u8] {
 
     #[inline]
     unsafe fn initializer(&self) -> Initializer {
-        Initializer::nop()
+        unsafe { Initializer::nop() }
     }
 
     #[inline]

library/alloc/src/io/mod.rs

@@ -2165,8 +2165,10 @@ impl<T: Read, U: Read> Read for Chain<T, U> {
     }
 
     unsafe fn initializer(&self) -> Initializer {
-        let initializer = self.first.initializer();
-        if initializer.should_initialize() { initializer } else { self.second.initializer() }
+        unsafe {
+            let initializer = self.first.initializer();
+            if initializer.should_initialize() { initializer } else { self.second.initializer() }
+        }
     }
 }
 
@@ -2356,7 +2358,9 @@ impl<T: Read> Read for Take<T> {
     }
 
     unsafe fn initializer(&self) -> Initializer {
-        self.inner.initializer()
+        unsafe {
+            self.inner.initializer()
+        }
     }
 
     fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize> {

library/alloc/src/io/util.rs

@@ -115,7 +115,7 @@ impl Read for Empty {
 
     #[inline]
     unsafe fn initializer(&self) -> Initializer {
-        Initializer::nop()
+        unsafe { Initializer::nop() }
     }
 }
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -189,7 +189,7 @@ impl Read for Repeat {
 
     #[inline]
     unsafe fn initializer(&self) -> Initializer {
-        Initializer::nop()
+        unsafe { Initializer::nop() }
     }
 }