Function rebaseHistArray

external/.scrollLibs.js:7441–7471

(array, from, to, diff)

  // reallocate them all on every rebase, but also avoid problems with
  // shared position objects being unsafely updated.
  function rebaseHistArray(array, from, to, diff) {
    for (var i = 0; i < array.length; ++i) {
      var sub = array[i],
        ok = true
      if (sub.ranges) {
        if (!sub.copied) {
          sub = array[i] = sub.deepCopy()
          sub.copied = true
        }
        for (var j = 0; j < sub.ranges.length; j++) {
          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
        }
        continue
      }
      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
        var cur = sub.changes[j$1]
        if (to < cur.from.line) {
          cur.from = Pos(cur.from.line + diff, cur.from.ch)
          cur.to = Pos(cur.to.line + diff, cur.to.ch)
        } else if (from <= cur.to.line) {
          ok = false
          break
        }
      }
      if (!ok) {
        array.splice(0, i + 1)
        i = 0
      }
    }
  }

  function rebaseHist(hist, change) {
    var from = change.from.line,