fn advance()

in common/rusty_leveldb_sgx/src/version.rs [416:442]

• 22 lines of code
• 5 McCabe index (conditional complexity)

    fn advance(&mut self) -> bool {
        assert!(!self.files.is_empty());

        if let Some(ref mut t) = self.current {
            if t.advance() {
                return true;
            } else if self.current_ix >= self.files.len() - 1 {
                // Already on last table; can't advance further.
                return false;
            }

            // Load next table if current table is exhausted and we have more tables to go through.
            self.current_ix += 1;
        }

        // Initialize iterator or load next table.
        if let Ok(tbl) = self
            .cache
            .borrow_mut()
            .get_table(self.files[self.current_ix].borrow().num)
        {
            self.current = Some(tbl.iter());
        } else {
            return false;
        }
        self.advance()
    }