Method try_exec

hail-fuzz/src/i2s/replacement.rs:328–359

(
        &mut self,
        fuzzer: &mut Fuzzer,
        stats: &mut crate::monitor::LocalStats,
    )

    }

    fn try_exec(
        &mut self,
        fuzzer: &mut Fuzzer,
        stats: &mut crate::monitor::LocalStats,
    ) -> anyhow::Result<bool> {
        fuzzer.reset_input_cursor().unwrap();
        fuzzer.write_input_to_target().unwrap();
        let Some(exit) = fuzzer.execute()
        else {
            return Ok(false);
        };
        fuzzer.auto_trim_input().unwrap();
        self.total_execs += 1;

        let path_changed = fuzzer.vm.cpu.icount() != self.end_icount;
        // If we executed a different amount of instructions then the replacement we just made had
        // an impact, so store it in the dictionary for future mutations.
        if path_changed && fuzzer.features.auto_dict {
            let item_to_add = self.replacement.get_value_for_dictionary();
            let key = self.replacement.stream_key;
            let dict = fuzzer.dict.entry(key).or_default();
            let sizes = fuzzer.state.input.streams[&key].sizes;
            if dict.add_item(item_to_add, sizes as u8) {
                fuzzer.dict_items += 1;
            }
        }

        fuzzer.check_exit_state(exit)?;
        fuzzer.update_stats(stats);

        Ok(true)
    }
}

#[derive(Debug)]