@atlaskit/editor-plugin-show-diff/dist/esm/pm-plugins/decorations/utils/safeResolve.js

ShowDiff plugin for @atlaskit/editor-core

/**
 * Resolves a document position, or returns `null` if it cannot be resolved.
 *
 * `Node.resolve` throws a `RangeError` for a position outside the document. Diff decorations are
 * built from change ranges computed against a document that may since have moved on, so a position
 * arriving out of range is a normal outcome rather than a defect — but an exception escaping here
 * takes down the whole decoration set, leaving the diff unrendered.
 *
 * Callers are expected to treat `null` as "cannot tell" and fall back to behaviour that does not
 * need the resolved position.
 */
export var safeResolve = function safeResolve(doc, pos) {
  try {
    return doc.resolve(pos);
  } catch (_unused) {
    return null;
  }
};