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

`type.locale_invalid`

Locale is not written as a Locale.

Area 10, Configuration; not declinable; the next step is usually the agent's.

A locale is a name in Locale, not text; a tag in quotes is the common slip, and the fix is one edit:

example

locales {    default: Locale.en_gb    supported: [Locale.en_gb, "fr-FR"]}

jadpo checkcheck failed: 1 error, 1 file

error "fr-FR" isn't written as a locale

--> main.jadpo:3:31

  |3 |     supported: [Locale.en_gb, "fr-FR"]  |                               ^^^^^^^ not a `Locale`

reason: A locale is a name in Locale, written Locale.<tag> with the tag in lower case and _ for -: Locale.en_gb is en-GB. Closed choices are names, not text, so a misspelt one is caught while compiling.
next: Write Locale.fr_fr instead (agent)
rule: type.locale_invalid
help: https://jadpo.dev/docs/errors/type.locale_invalid

Markdown for agents: /docs/errors/type.locale_invalid.md.Built from Jadpo main at aee2e8f.