Error Handling

Off by default (modules.error_handling = true to enable). Detects error handling anti-patterns across languages. Prefix: ERR-

Finding	Severity	Language(s)	What it matches
ERR-001	Warning	All	Empty catch / except block
ERR-002	Warning	Python	Bare except: (catches everything including KeyboardInterrupt)
ERR-003	Warning	Rust	.unwrap() in non-test code
ERR-004	Warning	Rust	panic!() / todo!() / unimplemented!() in non-test code
ERR-005	Warning	Rust	.expect() with a non-descriptive message (e.g. "error", "failed", "")
ERR-006	Info	JS/TS/Java	Catch block that only logs without re-throwing
ERR-007	Warning	Python	Too-broad exception (except Exception, except BaseException)
ERR-008	Warning	JS/TS	Empty .catch(() => {}) callback
ERR-009	Warning	Go	Discarded error (_ = err)

Note: Rust-specific patterns (ERR-003 – ERR-005) are automatically skipped inside #[test] and #[cfg(test)] blocks, as well as in files under tests/ directories or named test_* / *_spec.rs.

// Bad — ERR-003
let value = map.get("key").unwrap();

// Good
let value = map.get("key").ok_or(MyError::NotFound)?;

// Bad — ERR-005
let cfg = load_config().expect("error");

// Good
let cfg = load_config().expect("Failed to load config file from ~/.config/app.toml");

# Bad — ERR-002
try:
    risky()
except:
    pass

# Good
try:
    risky()
except ValueError as e:
    logger.warning("Invalid value: %s", e)