Allow Buffer methods to inline

Author: saethlin

library/std/src/io/buffered/bufreader/buffer.rs

@@ -10,43 +10,52 @@ pub struct Buffer {
 }
 
 impl Buffer {
+    #[inline]
     pub fn with_capacity(capacity: usize) -> Self {
         let buf = Box::new_uninit_slice(capacity);
         Self { buf, pos: 0, cap: 0, init: 0 }
     }
 
+    #[inline]
     pub fn buffer(&self) -> &[u8] {
         // SAFETY: self.cap is always <= self.init, so self.buf[self.pos..self.cap] is always init
         // Additionally, both self.pos and self.cap are valid and and self.cap => self.pos, and
         // that region is initialized because those are all invariants of this type.
         unsafe { MaybeUninit::slice_assume_init_ref(&self.buf.get_unchecked(self.pos..self.cap)) }
     }
 
+    #[inline]
     pub fn capacity(&self) -> usize {
         self.buf.len()
     }
 
+    #[inline]
     pub fn cap(&self) -> usize {
         self.cap
     }
 
+    #[inline]
     pub fn pos(&self) -> usize {
         self.pos
     }
 
+    #[inline]
     pub fn discard_buffer(&mut self) {
         self.pos = 0;
         self.cap = 0;
     }
 
+    #[inline]
     pub fn consume(&mut self, amt: usize) {
         self.pos = cmp::min(self.pos + amt, self.cap);
     }
 
+    #[inline]
     pub fn unconsume(&mut self, amt: usize) {
         self.pos = self.pos.saturating_sub(amt);
     }
 
+    #[inline]
     pub fn fill_buf(&mut self, mut reader: impl Read) -> io::Result<&[u8]> {
         // If we've reached the end of our internal buffer then we need to fetch
         // some more data from the underlying reader.