highlightDependencies()

in src/overlay/gather-markers.ts [345:378]

• 32 lines of code
• 5 McCabe index (conditional complexity)

  highlightDependencies(slice: py.SlicedExecution) {
    let defLines: number[] = [];
    slice.cellSlices.forEach(cellSlice => {
      let loggedCell = cellSlice.cell;
      let sliceLocations = cellSlice.slice;
      let liveCellWidget = this._elementFinder.getCellWidget(loggedCell);
      let editor = this._elementFinder.getEditor(loggedCell);

      if (liveCellWidget && editor) {
        let liveCell = new LabCell(liveCellWidget.model as ICodeCellModel);
        let numLines = 0;
        // Batch the highlight operations for each cell to spend less time updating cell height.
        editor.operation(() => {
          sliceLocations.items.forEach((loc: py.Location) => {
            for (
              let lineNumber = loc.first_line - 1;
              lineNumber <= loc.last_line - 1;
              lineNumber++
            ) {
              numLines += 1;
              let styleClass = liveCell.dirty ? DIRTY_DEPENDENCY_CLASS : DEPENDENCY_CLASS;
              let lineHandle = editor.addLineClass(lineNumber, "background", styleClass);
              this._dependencyLineMarkers.push({
                editor: editor,
                lineHandle: lineHandle
              });
            }
          });
          defLines.push(numLines);
        });
      }
    });
    log("Added lines for defs (may be overlapping)", { defLines });
  }