Function adjustIntersectingElement

test/fixtures/snapshot/typescript.js:38504–38570

(element, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta)

            return false;
        }
        function adjustIntersectingElement(element, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta) {
            ts.Debug.assert(element.end >= changeStart, "Adjusting an element that was entirely before the change range");
            ts.Debug.assert(element.pos <= changeRangeOldEnd, "Adjusting an element that was entirely after the change range");
            ts.Debug.assert(element.pos <= element.end);
            // We have an element that intersects the change range in some way.  It may have its
            // start, or its end (or both) in the changed range.  We want to adjust any part
            // that intersects such that the final tree is in a consistent state.  i.e. all
            // children have spans within the span of their parent, and all siblings are ordered
            // properly.
            // We may need to update both the 'pos' and the 'end' of the element.
            // If the 'pos' is before the start of the change, then we don't need to touch it.
            // If it isn't, then the 'pos' must be inside the change.  How we update it will
            // depend if delta is positive or negative. If delta is positive then we have
            // something like:
            //
            //  -------------------AAA-----------------
            //  -------------------BBBCCCCCCC-----------------
            //
            // In this case, we consider any node that started in the change range to still be
            // starting at the same position.
            //
            // however, if the delta is negative, then we instead have something like this:
            //
            //  -------------------XXXYYYYYYY-----------------
            //  -------------------ZZZ-----------------
            //
            // In this case, any element that started in the 'X' range will keep its position.
            // However any element that started after that will have their pos adjusted to be
            // at the end of the new range.  i.e. any node that started in the 'Y' range will
            // be adjusted to have their start at the end of the 'Z' range.
            //
            // The element will keep its position if possible.  Or Move backward to the new-end
            // if it's in the 'Y' range.
            var pos = Math.min(element.pos, changeRangeNewEnd);
            // If the 'end' is after the change range, then we always adjust it by the delta
            // amount.  However, if the end is in the change range, then how we adjust it
            // will depend on if delta is positive or negative.  If delta is positive then we
            // have something like:
            //
            //  -------------------AAA-----------------
            //  -------------------BBBCCCCCCC-----------------
            //
            // In this case, we consider any node that ended inside the change range to keep its
            // end position.
            //
            // however, if the delta is negative, then we instead have something like this:
            //
            //  -------------------XXXYYYYYYY-----------------
            //  -------------------ZZZ-----------------
            //
            // In this case, any element that ended in the 'X' range will keep its position.
            // However any element that ended after that will have their pos adjusted to be
            // at the end of the new range.  i.e. any node that ended in the 'Y' range will
            // be adjusted to have their end at the end of the 'Z' range.
            var end = element.end >= changeRangeOldEnd ?
                // Element ends after the change range.  Always adjust the end pos.
                element.end + delta :
                // Element ends in the change range.  The element will keep its position if