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use std::io::Read;
use std::io::Write;
use crate::coded_output_stream::with::WithCodedOutputStream;
use crate::error::ProtobufError;
use crate::wire_format::check_message_size;
use crate::CodedInputStream;
use crate::CodedOutputStream;
use crate::SpecialFields;
use crate::UnknownFields;
pub trait Message: Default + Clone + Send + Sync + Sized + PartialEq + 'static {
const NAME: &'static str;
fn is_initialized(&self) -> bool;
fn merge_from(&mut self, is: &mut CodedInputStream) -> crate::Result<()>;
fn parse_from(is: &mut CodedInputStream) -> crate::Result<Self> {
let mut r: Self = Message::new();
r.merge_from(is)?;
r.check_initialized()?;
Ok(r)
}
fn write_to_with_cached_sizes(&self, os: &mut CodedOutputStream) -> crate::Result<()>;
fn compute_size(&self) -> u64;
fn cached_size(&self) -> u32 {
self.special_fields().cached_size().get()
}
fn write_to(&self, os: &mut CodedOutputStream) -> crate::Result<()> {
self.check_initialized()?;
let size = self.compute_size();
let size = check_message_size(size)?;
os.reserve_additional(size as u32, Self::NAME)?;
self.write_to_with_cached_sizes(os)?;
Ok(())
}
fn write_length_delimited_to(&self, os: &mut CodedOutputStream) -> crate::Result<()> {
let size = self.compute_size();
let size = check_message_size(size)?;
os.reserve_additional_for_length_delimited(size, Self::NAME)?;
os.write_raw_varint32(size)?;
let written = os.total_bytes_written();
self.write_to_with_cached_sizes(os)?;
assert_eq!(
written + size as u64,
os.total_bytes_written(),
"Expected to write {}, actually wrote {}",
size,
os.total_bytes_written() - written
);
Ok(())
}
fn write_length_delimited_to_vec(&self, vec: &mut Vec<u8>) -> crate::Result<()> {
let mut os = CodedOutputStream::vec(vec);
self.write_length_delimited_to(&mut os)?;
os.flush()?;
Ok(())
}
fn merge_from_bytes(&mut self, bytes: &[u8]) -> crate::Result<()> {
let mut is = CodedInputStream::from_bytes(bytes);
self.merge_from(&mut is)
}
fn parse_from_reader(reader: &mut dyn Read) -> crate::Result<Self> {
let mut is = CodedInputStream::new(reader);
let r = Message::parse_from(&mut is)?;
is.check_eof()?;
Ok(r)
}
fn parse_from_bytes(bytes: &[u8]) -> crate::Result<Self> {
let mut is = CodedInputStream::from_bytes(bytes);
let r = Message::parse_from(&mut is)?;
is.check_eof()?;
Ok(r)
}
#[cfg(feature = "bytes")]
fn parse_from_tokio_bytes(bytes: &bytes::Bytes) -> crate::Result<Self> {
let mut is = CodedInputStream::from_tokio_bytes(bytes);
let r = Self::parse_from(&mut is)?;
is.check_eof()?;
Ok(r)
}
fn check_initialized(&self) -> crate::Result<()> {
if !self.is_initialized() {
Err(ProtobufError::MessageNotInitialized(Self::NAME.to_owned()).into())
} else {
Ok(())
}
}
fn write_to_writer(&self, w: &mut dyn Write) -> crate::Result<()> {
w.with_coded_output_stream(|os| self.write_to(os))
}
fn write_to_vec(&self, v: &mut Vec<u8>) -> crate::Result<()> {
v.with_coded_output_stream(|os| self.write_to(os))
}
fn write_to_bytes(&self) -> crate::Result<Vec<u8>> {
self.check_initialized()?;
let size = self.compute_size() as usize;
let mut v = Vec::with_capacity(size);
let mut os = CodedOutputStream::vec(&mut v);
self.write_to_with_cached_sizes(&mut os)?;
os.flush()?;
drop(os);
Ok(v)
}
fn write_length_delimited_to_writer(&self, w: &mut dyn Write) -> crate::Result<()> {
w.with_coded_output_stream(|os| self.write_length_delimited_to(os))
}
fn write_length_delimited_to_bytes(&self) -> crate::Result<Vec<u8>> {
let mut v = Vec::new();
v.with_coded_output_stream(|os| self.write_length_delimited_to(os))?;
Ok(v)
}
fn special_fields(&self) -> &SpecialFields;
fn mut_special_fields(&mut self) -> &mut SpecialFields;
fn unknown_fields(&self) -> &UnknownFields {
&self.special_fields().unknown_fields()
}
fn mut_unknown_fields(&mut self) -> &mut UnknownFields {
self.mut_special_fields().mut_unknown_fields()
}
fn new() -> Self;
fn clear(&mut self) {
*self = Self::new();
}
fn default_instance() -> &'static Self;
}