Add `ChangeEditorContents` event

finchie

Jan 2, 2026, 1:43 AM

QY4DF3NMDBZQ4IJQJIYRWKQ66FWMFQUSASMEBNG5ROXDHTWI2J4QC

Dependencies

• [2] WFWTKCJN Create initial Visual Studio Code extension
• [3] 6AUGQLIK Add basic panic handling
• [4] 3YGYMEXV Create `event_loop` module
• [5] TDTLSDFG Create macro for defining `ThreadsafeFunction`s
• [6] NB2MF3MY Add `OpenWorkspaceFolder` event
• [7] 2ZAM5V35 Move event handling into modules
• [8] IDY5SNLO Update source control resource states in event loop
• [9] 3RNQI5RX Refactor `provide_file_decoration` to return a `Promise` resolved by `event_loop`
• [10] M5RW5PN4 Add `OpenTextEditor` event
• [11] GQ52YLWH Remove unnecessary debug logs
• [12] OUADGWKR Create fully-initialized `SourceControl` object in `event_loop`

Change contents

• replacement in editors/vscode/src/lib.rs at line 130
  [2.114107]→[2.114107:114186](∅→∅)
  − // Ignore any messages printed to the `Output` channel (used by `tracing`)
  [2.114107]

  [2.114186]
  + // Ignore any messages printed to the `Output` channel (used by `tracing`).

  + // Since the output view is a text document, any logging calls will trigger this function,

  + // so make sure to return before it sends itself into an infinite loop.
• edit in editors/vscode/src/lib.rs at line 135
  [2.114257]

  [2.114257]
  + }

  +

  + let uri = UriAbsoluteString::try_from(document_uri.to_string()?)

  + .map_err(|error| napi::Error::from_reason(format!("Failed to parse URI: {error}")))?;

  +

  + let change_events = event.get_content_changes()?;

  + let mut changes = Vec::with_capacity(change_events.len());

  +

  + for change_event in &change_events {

  + changes.push(event_loop::EditorContentsChange {

  + character_offset: change_event.get_range_offset()?,

  + characters_replaced: change_event.get_range_length()?,

  + replacement_text: change_event.get_text()?,

  + })
• edit in editors/vscode/src/lib.rs at line 151
  [3.2630]

  [3.2630]
  + event_loop::send(Event::ChangeEditorContents { uri, changes });

  +
• edit in editors/vscode/src/lib.rs at line 166
  [2.114804]→[2.114804:114863](∅→∅)
  − let change_events = event.get_content_changes()?;

  −
• replacement in editors/vscode/src/event_loop/mod.rs at line 6
  [9.538]→[10.383:443](∅→∅)
  − use iri_string::types::{UriAbsoluteStr, UriAbsoluteString};
  [9.538]

  [4.198]
  + use iri_string::types::UriAbsoluteStr;
• replacement in editors/vscode/src/event_loop/mod.rs at line 11
  [7.1]→[7.1:71](∅→∅)
  − // Re-export Event so it can be used by callers

  − pub use event::Event;
  [7.1]

  [5.1732]
  + // Re-export Event types so it can be used by callers

  + pub use event::{EditorContentsChange, Event};
• edit in editors/vscode/src/event_loop/mod.rs at line 126
  [8.638]

  [6.2519]
  + }

  + Event::ChangeEditorContents { uri, changes } => {

  + event::change_editor_contents::handle(uri, changes, &mut extension_state).await
• edit in editors/vscode/src/event_loop/event/mod.rs at line 6
  [8.5706]

  [10.5913]
  + pub mod change_editor_contents;
• edit in editors/vscode/src/event_loop/event/mod.rs at line 11
  [8.5739]

  [7.3099]
  +

  + #[derive(Debug)]

  + pub struct EditorContentsChange {

  + pub character_offset: u32,

  + pub characters_replaced: u32,

  + pub replacement_text: String,

  + }
• edit in editors/vscode/src/event_loop/event/mod.rs at line 26
  [10.6052]

  [10.6052]
  + },

  + ChangeEditorContents {

  + uri: UriAbsoluteString,

  + changes: Vec<EditorContentsChange>,
• file addition: change_editor_contents.rs (----------)
  [7.332]
  + use iri_string::types::UriAbsoluteString;

  +

  + use crate::event_loop::{EditorContentsChange, ExtensionState};

  +

  + #[tracing::instrument(skip(extension_state))]

  + pub async fn handle(

  + uri: UriAbsoluteString,

  + changes: Vec<EditorContentsChange>,

  + extension_state: &mut ExtensionState,

  + ) {

  + let Some((_repository_path, relative_path, repository)) =

  + extension_state.get_repository_mut(&uri)

  + else {

  + tracing::info!(message = "Ignoring text content changes");

  + return;

  + };

  +

  + for change in changes {

  + let EditorContentsChange {

  + character_offset,

  + characters_replaced,

  + replacement_text,

  + } = change;

  +

  + if let Err(error) = repository.repository.update_open_file(

  + relative_path,

  + character_offset as usize,

  + characters_replaced as usize,

  + &replacement_text,

  + ) {

  + tracing::error!(message = "Failed to update open file", ?error);

  + return;

  + }

  +

  + tracing::info!(message = "Updated open file");

  + }

  + }