Nushell core team meeting 2025-04-23

Attendees

Stefan
Bahex
Jack
Piet
Storm
Amtoine
Douglas
Loic329
Darren
Jan9103

Agenda

try {} finally {} value semantics discord

$IN
| try {
    # <== $IN
    ...
    # ==> $SUCC / $ERR
} catch {
    # <== $ERR
    ...
    # ==> $CATCH
} else {
    # <== $SUCC
    ...
    # ==> $ELSE
} finally {
    # <== $CATCH / $ELSE
    ...
    # ==> $FINALLY
}
# ==> $FINALLY

If a block is not given, it acts as if it's an empty block (i.e. returning its input as it is)

update with multiple columns vs update cells
Some considerations

def update [
    fields: one_of(cell-path, list<cell-path>),
    replacement: any
]

| update field_a {|| ...}
| update [field_a field_b] {|| ...}

Would this be useful?

.

Discussed Topics

try {} finally {}
- not entirely against it
- but complete for nu commands would probably be a better fit
- return inside try is already not handled well, this would be more confusing
- => Try to build a complete for nu commands and see if we like that