fn parse_comma_separated(
      &mut self,
      dest: &mut Vec<NodeId>,
      end: TokenKind,
      mut next: impl FnMut(&mut Self) -> Result<NodeId, Error>,
   ) -> Result<(), Error> {
      loop {
         let token = self.lexer.peek_token()?;
         match &token.kind {
            TokenKind::Eof => return Err(self.error(&token, ErrorKind::UnexpectedEof)),
            kind if *kind == end => {
               self.lexer.next_token()?;
               return Ok(());
            }
            _ => (),
         }
         dest.push(next(self)?);
         match self.lexer.next_token()? {
            Token {
               kind: TokenKind::Comma,
               ..
            } => (),
            t if t.kind == end => return Ok(()),
            token => return Err(self.error(&token, ErrorKind::CommaExpected)),
         }
      }
   }
/// Parses a comma-separated list.
Parses a comma-separated list.
Parses a comma - separated list .
fn parse_comma_separated(
      &mut self,
      dest: &mut Vec<NodeId>,
      end: TokenKind,
      mut next: impl FnMut(&mut Self) -> Result<NodeId, Error>,
   ) -> Result<(), Error> {
      loop {
         let token = self.lexer.peek_token()?;
         match &token.kind {
            TokenKind::Eof => return Err(self.error(&token, ErrorKind::UnexpectedEof)),
            kind if *kind == end => {
               self.lexer.next_token()?;
               return Ok(());
            }
            _ => (),
         }
         dest.push(next(self)?);
         match self.lexer.next_token()? {
            Token {
               kind: TokenKind::Comma,
               ..
            } => (),
            t if t.kind == end => return Ok(()),
            token => return Err(self.error(&token, ErrorKind::CommaExpected)),
         }
      }
   }
fn parse_comma_separated ( & mut self , dest : & mut Vec < NodeId > , end : TokenKind , mut next : impl FnMut ( & mut Self ) -> Result < NodeId , Error > , ) -> Result < ( ) , Error > { loop { let token = self . lexer . peek_token ( ) ? ; match & token . kind { TokenKind :: Eof => return Err ( self . error ( & token , ErrorKind :: UnexpectedEof ) ) , kind if * kind == end => { self . lexer . next_token ( ) ? ; return Ok ( ( ) ) ; } _ => ( ) , } dest . push ( next ( self ) ? ) ; match self . lexer . next_token ( ) ? { Token { kind : TokenKind :: Comma , .. } => ( ) , t if t . kind == end => return Ok ( ( ) ) , token => return Err ( self . error ( & token , ErrorKind :: CommaExpected ) ) , } } }
Parses a comma-separated list.
Parses a comma - separated list .
&mut self
dest
&mut Vec<NodeId>
end
TokenKind
next
impl FnMut(&mut Self) -> Result<NodeId, Error>