50         const len: usize = 1;  in into_u8()  const
52         if self.buf.len() < len {  in into_u8()
55         let bytes: [u8; len] = <[u8; len]>::try_from(self.buf[..len].as_ref()).unwrap();  in into_u8()
66         const len: usize = 2;  in into_u16()  const
68         if self.buf.len() < len {  in into_u16()
71         let bytes: [u8; len] = <[u8; len]>::try_from(self.buf[..len].as_ref()).unwrap();  in into_u16()
82         const len: usize = 4;  in into_u32()  const
84         if self.buf.len() < len {  in into_u32()
87         let bytes: [u8; len] = <[u8; len]>::try_from(self.buf[..len].as_ref()).unwrap();  in into_u32()
98         const len: usize = 8;  in into_u64()  const
100         if self.buf.len() < len {  in into_u64()
103         let bytes: [u8; len] = <[u8; len]>::try_from(self.buf[..len].as_ref()).unwrap();  in into_u64()
118         let len = varint_parse_len(first);  in get_varint()  localVariable
120         if len > self.cap() {  in get_varint()
124         let out = match len {  in get_varint()
141         self.buf.len() - self.off  in cap()
168         let input_len = self.src.len() - src_idx;  in write()
169         let output_len = self.dst.len();  in write()
197         const len: usize = 1;  in write_u8()  const
199         if self.buf.len() != len {  in write_u8()
203         let bytes: [u8; len] = value.to_be_bytes();  in write_u8()
205         Ok(len)  in write_u8()
209         const len: usize = 2;  in write_u16()  const
211         if self.buf.len() != len {  in write_u16()
215         let bytes: [u8; len] = value.to_be_bytes();  in write_u16()
217         Ok(len)  in write_u16()
221         const len: usize = 4;  in write_u32()  const
223         if self.buf.len() != len {  in write_u32()
227         let bytes: [u8; len] = value.to_be_bytes();  in write_u32()
229         Ok(len)  in write_u32()
233         const len: usize = 8;  in write_u64()  const
235         if self.buf.len() != len {  in write_u64()
239         let bytes: [u8; len] = value.to_be_bytes();  in write_u64()
241         Ok(len)  in write_u64()
250     pub fn write_varint_with_len(&mut self, value: u64, len: usize) -> Result<usize> {  in write_varint_with_len()
251         if self.cap() < len {  in write_varint_with_len()
255         let res = match len {  in write_varint_with_len()