Files
openidea/wit/exports.wit
l0ng-ai 78e0c7a23e feat(plugins): finalize plugin API before release, concurrent providers
Plugin API (breaking; the plugin system is unreleased):
- Remove the runtime `contributions` interface (register-command,
  register-language, register-theme). Commands, languages and themes are
  declared in plugin.toml only, so everything a plugin contributes goes
  through the install preview and consent. The registry drops runtime
  scope, `contribute` and `dispose_runtime`; inline `definition` in
  language and theme declarations is gone.
- `completion-item.kind` is a string (the 25 LSP kinds; unknown kinds show
  no icon), like the other open-ended kinds.
- `lifecycle.activate` and `commands.run` return `types.error` instead of a
  string. The host maps it to the matching error kind, and only `failed`
  counts against the plugin: cancelling, a missing grant or an unknown
  command does not. The SDK's `Plugin` returns `Result<_, Error>`; plain
  messages convert to `Error::Failed`.

Runtime:
- Editor providers of several plugins are called at the same time
  (`Actor::submit` + `Pending::wait`): the wait is the slowest plugin's,
  not the sum, so each gets the full edit-path budget.

Versioning and tooling:
- Components are checked at install and by `openidea-plugin check` for the
  plugin API they were built for; another major or a newer minor is
  refused with what to do.
- Tests: the SDK's WIT matches the host's, a simulated next-minor host
  links every shipped component, every host function has an SDK wrapper,
  released APIs only grow (no snapshot until the first release).
- plugins/build.sh builds every checked-in component, records a source
  fingerprint next to it, and `--check` fails on stale components; CI runs
  it plus fmt, clippy (host and wasm) and tests for the SDK, the official
  plugins and the fixtures.
- The API evolution rules and the checklist for a new host function are in
  plugins/README.md; the design notes under docs/ are removed.
2026-11-04 02:41:46 +08:00

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package openidea:plugin@1.0.0;
interface lifecycle {
use types.{context, error};
/// Called once after the instance is created: subscribe to events and
/// restore state from `storage`. Contributions (commands, languages,
/// themes, …) are declared in plugin.toml, not registered here.
/// An error fails the activation (shown on the plugin's page).
activate: func(ctx: context) -> result<_, error>;
/// Called before the instance is dropped (disable, uninstall, idle reclaim).
deactivate: func();
}
interface commands {
use types.{error};
use invocation.{invocation};
/// Runs one of the plugin's commands. Returns an optional message.
/// `cancelled` (the user gave up) and `denied` (a capability is missing)
/// are not counted as the plugin failing.
run: func(id: string, ctx: borrow<invocation>, arg: option<string>) -> result<option<string>, error>;
}
interface event-handler {
use events.{event};
use invocation.{invocation};
/// A batch of subscribed events, oldest first, from one window (`ctx`).
handle: func(events: list<event>, ctx: borrow<invocation>);
}
/// Optional export (world `plugin-syntax`): syntax of the plugin's own
/// languages, for languages the IDE has no grammar for. The IDE calls it
/// with the whole document; results are flat. Offsets are UTF-8 byte offsets
/// into `text` (the IDE converts them); lines are 0-based.
interface syntax-provider {
/// One highlighted range. `kind` is a highlight category: keyword, string,
/// string-special, escape, regexp, atom, number, constant, comment,
/// doc-comment, function, function-call, builtin, type, namespace,
/// variable, self-variable, property, attribute, macro, label, tag,
/// operator, punctuation. Unknown kinds are ignored; ranges must be
/// sorted and not overlap.
record token {
start: u32,
end: u32,
kind: string,
}
/// A symbol of the structure view. `parent` is the index of the enclosing
/// symbol in the same list (which must come first).
record symbol {
name: string,
detail: option<string>,
/// class, interface, struct, enum, function, method, constructor,
/// field, property, variable, constant, module, namespace, event, …
kind: string,
start: u32,
end: u32,
name-start: u32,
name-end: u32,
parent: option<u32>,
}
/// A foldable line range. `kind`: region, comment or imports.
record fold {
start-line: u32,
end-line: u32,
kind: string,
}
highlights: func(language: string, text: string) -> list<token>;
outline: func(language: string, text: string) -> list<symbol>;
folding: func(language: string, text: string) -> list<fold>;
}