Method expect_ident

perro_source/core/perro_animation/src/anim_tree.rs:487–495

(&mut self)

    }

    fn expect_ident(&mut self) -> Result<String, String> {
        match std::mem::replace(&mut self.current, Token::Eof) {
            Token::Ident(v) => {
                self.advance();
                Ok(v.to_string())
            }
            other => Err(format!("expected identifier, got {other:?}")),
        }
    }

    fn advance(&mut self) {
        self.current = self.lexer.next_token();