Function handleEvent

packages/ai-opencode/src/stream/translate.ts:333–356

(event: OpencodeEvent)

  }

  function* handleEvent(event: OpencodeEvent): Generator<StreamChunk> {
    if (event.type === 'message.part.updated') {
      const { part, delta } = event.properties
      if (isTextPart(part)) {
        yield* handleTextPart(part, delta)
      } else if (isReasoningPart(part)) {
        yield* handleReasoningPart(part, delta)
      } else if (isToolPart(part)) {
        yield* handleToolPart(part)
      }
      // Other part kinds (file, step-start/finish, snapshot, ...) carry no
      // state the chunk stream needs.
    } else if (event.type === 'todo.updated') {
      yield {
        type: EventType.CUSTOM,
        model,
        timestamp: now(),
        name: TODO_EVENT,
        value: { todos: event.properties.todos },
      }
    }
    // session.idle / session.status / message.updated are redundant with the
    // terminal `done` event and are ignored.
  }

  function* finish(message: OpencodeAssistantMessage): Generator<StreamChunk> {
    yield* startRun()