Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 5 Nov 2026. What's built · Install 0.3.0

ReferenceErrors

`failure.outcome_wildcard`

Outcome match uses a wildcard.

Area 3, Logic; not declinable; the next step is usually the agent's.

example

function wildcard_failure(key: LookupKey) -> LookupResult {    return match lookup(key) {        success(value) -> value        _ -> "fallback"    }}

jadpo checkcheck failed: 1 error, 2 files

error _ can't stand for a call's failures

--> main.jadpo:4:9

  |4 |         _ -> "fallback"  |         ^ wildcard

reason: Every failure a call can give has an arm of its own, so a failure added to the call later is caught at every match that has to consider it.
next: Replace _ with arms for LookupMissing and LookupRefused (agent)
rule: failure.outcome_wildcard
help: https://jadpo.dev/docs/errors/failure.outcome_wildcard

Markdown for agents: /docs/errors/failure.outcome_wildcard.md.Built from Jadpo main at aee2e8f.