Error Handling

try / catch / finally

try {
    result = 10 / 2
    print(result)
} catch e {
    print("error", e)
} finally {
    print("done")
}

The JavaScript catch is brace-correct (regression-tested for duplicate }). Specifying an exception type uses it:

catch ValueError e {
    print(e)
}

Python receives except ValueError as e:.

throw / raise

if score < 0 {
    throw "invalid score"
}

Target caveats

• Python, JavaScript, Ruby: fully functional — catch, finally ordering, and exception propagation all follow the target's native semantics.
• Java: the try/catch/finally block is emitted in Java syntax. Since GSET functions become static methods inside Main, keep exceptions within method bodies for now.
• Go: Go has no try/catch — the emitter currently prints C-style try { … } which does not compile under go run. Prefer error-return style or keep try only for non-Go targets. Named-exception handling in Go is Planned.