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Reference: Logic

Logic · rule

failure.outcome_pattern_invalid

Outcome match arm has a pattern for values.

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

A match on a call's outcome has no patterns for values:

example
function lookup_label(key: LookupKey) -> LookupResult {    return match lookup(key) {        success(value) -> value        LookupMissing -> "missing"        LookupRefused -> "refused"        none -> "nothing"    }}
text
error: `none` can't match a call's outcome --> main.jadpo:6:9  |6 |         none -> "nothing"  |         ^^^^ a pattern for values  reason: A `match` on `lookup(...)` has a `success(name)` arm for its value and an arm for each failure it can give; to look at the value's own cases, match on the success value.  next: Remove this arm, or match on the success value inside `success(...)` (agent)  rule: failure.outcome_pattern_invalid  help: https://jadpo.dev/docs/errors/failure.outcome_pattern_invalidcheck failed: 1 error, 2 files

Markdown for agents: /docs/errors/failure.outcome_pattern_invalid.md.Built from Jadpo main at a707efb.