Function getDisplayLineMap

src/util/getDisplayLineMap.ts:12–28

(editor: vscode.TextEditor)

 * @param editor A visible editor
 */
export function getDisplayLineMap(editor: vscode.TextEditor) {
  return new Map(
    flow(
      flatten,
      uniq
    )(
      concat(
        [[editor.selection.start.line]],
        editor.visibleRanges.map((visibleRange) =>
          range(visibleRange.start.line, visibleRange.end.line + 1)
        )
      )
    )
      .sort((a, b) => a - b)
      .map((value, index) => [value, index])
  );
}