pub fn new_buffer(&mut self, buffer: Buffer) -> usize {
        self.buffers.push(buffer);

        self.buffers.len() - 1
    }
/// Adds the specified buffer to the set of buffers and returns
/// its index.
Adds the specified buffer to the set of buffers and returns
its index.
Adds the specified buffer to the set of buffers and returns its index .
pub fn new_buffer(&mut self, buffer: Buffer) -> usize {
        self.buffers.push(buffer);
        self.buffers.len() - 1
    }
pub fn new_buffer ( & mut self , buffer : Buffer ) -> usize { self . buffers . push ( buffer ) ; self . buffers . len ( ) - 1 }
Adds the specified buffer to the set of buffers and returns
its index.
Adds the specified buffer to the set of buffers and returns its index .
&mut self
buffer
Buffer
&mut self
buffer
Buffer