Documentation

Lean.Server.FileWorker

For general server architecture, see README.md. For details of IPC communication, see Watchdog.lean. This module implements per-file worker processes.

File processing and requests+notifications against a file should be concurrent for two reasons:

To achieve these goals, elaboration is executed in a chain of tasks, where each task corresponds to the elaboration of one command. When the elaboration of one command is done, the next task is spawned. On didChange notifications, we search for the task in which the change occurred. If we stumble across a task that has not yet finished before finding the task we're looking for, we terminate it and start the elaboration there, otherwise we start the elaboration at the task where the change occurred.

Requests iterate over tasks until they find the command that they need to answer the request. In order to not block the main thread, this is done in a request task. If a task that the request task waits for is terminated, a change occurred somewhere before the command that the request is looking for and the request sends a "content changed" error.

Instances For

    Asynchronous snapshot elaboration #

    Equations

    Type of state stored in Snapshot.Diagnostics.cacheRef?.

    See also section "Communication" in Lean/Server/README.md.

    Instances For
      Instances For
        Instances For

          Callback from Lean language processor after parsing imports that requests necessary information from Lake for processing imports.

          Equations
          • One or more equations did not get rendered due to their size.
          Instances For
            Equations
            • One or more equations did not get rendered due to their size.
            Instances For

              Creates an LSP message output channel along with a reader that sends out read messages on the output FS stream after discarding outdated notifications. This is the only component of the worker with access to the output stream, so we can synchronize messages from parallel elaboration tasks here.

              Equations
              • One or more equations did not get rendered due to their size.
              Instances For
                Equations
                • One or more equations did not get rendered due to their size.
                Instances For
                  Equations
                  • One or more equations did not get rendered due to their size.
                  Instances For

                    Given the new document, updates editable doc state.

                    Equations
                    • One or more equations did not get rendered due to their size.
                    Instances For
                      Equations
                      • One or more equations did not get rendered due to their size.
                      Instances For
                        Equations
                        • One or more equations did not get rendered due to their size.
                        Instances For

                          Received from the watchdog when a dependency of this file is detected as being stale. Issues a sticky diagnostic to the client that it should run "Restart File".

                          Equations
                          • One or more equations did not get rendered due to their size.
                          Instances For
                            Equations
                            • One or more equations did not get rendered due to their size.
                            Instances For
                              Equations
                              • One or more equations did not get rendered due to their size.
                              Instances For

                                Requests here are handled synchronously rather than in the asynchronous RequestM.

                                Equations
                                • One or more equations did not get rendered due to their size.
                                Instances For
                                  Equations
                                  • One or more equations did not get rendered due to their size.
                                  Instances For
                                    Equations
                                    • One or more equations did not get rendered due to their size.
                                    Instances For
                                      Equations
                                      • One or more equations did not get rendered due to their size.
                                      Instances For
                                        Equations
                                        • One or more equations did not get rendered due to their size.
                                        Instances For
                                          Equations
                                          • One or more equations did not get rendered due to their size.
                                          Instances For
                                            Equations
                                            • One or more equations did not get rendered due to their size.
                                            Instances For
                                              @[export lean_server_worker_main]
                                              Equations
                                              • One or more equations did not get rendered due to their size.
                                              Instances For