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Unified Diff: Source/core/rendering/RenderGrid.cpp

Issue 166623002: [CSS Grid Layout] Introduce an explicit type for resolved grid positions (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 10 months ago
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Index: Source/core/rendering/RenderGrid.cpp
diff --git a/Source/core/rendering/RenderGrid.cpp b/Source/core/rendering/RenderGrid.cpp
index 9961336223f36d9a1cb0c32c20ec5595ec46ceec..bfe0c981fca06aaead0e0f3f53b24a23e10b8bfb 100644
--- a/Source/core/rendering/RenderGrid.cpp
+++ b/Source/core/rendering/RenderGrid.cpp
@@ -198,7 +198,7 @@ void RenderGrid::addChild(RenderObject* newChild, RenderObject* beforeChild)
// The new child requires the auto-placement algorithm to run so we need to recompute the grid fully.
dirtyGrid();
} else {
- if (gridRowCount() <= rowPositions->finalPositionIndex || gridColumnCount() <= columnPositions->finalPositionIndex) {
+ if (gridRowCount() <= rowPositions->finalPositionIndex.integerPosition() || gridColumnCount() <= columnPositions->finalPositionIndex.integerPosition()) {
// FIXME: We could just insert the new child provided we had a primitive to arbitrarily grow the grid.
dirtyGrid();
} else {
@@ -422,7 +422,7 @@ void RenderGrid::computeUsedBreadthOfGridTracks(GridTrackSizingDirection directi
const GridSpan span = (direction == ForColumns) ? coordinate.columns : coordinate.rows;
// Do not include already processed items.
- if (i > 0 && span.initialPositionIndex <= flexibleSizedTracksIndex[i - 1])
+ if (i > 0 && span.initialPositionIndex.integerPosition() <= flexibleSizedTracksIndex[i - 1])
continue;
double itemNormalizedFlexBreadth = computeNormalizedFractionBreadth(tracks, span, direction, maxContentForChild(gridItem, direction, sizingData.columnTracks));
@@ -487,7 +487,7 @@ double RenderGrid::computeNormalizedFractionBreadth(Vector<GridTrack>& tracks, c
// |availableLogicalSpace| already accounts for the used breadths so no need to remove it here.
Vector<GridTrackForNormalization> tracksForNormalization;
- for (size_t i = tracksSpan.initialPositionIndex; i <= tracksSpan.finalPositionIndex; ++i) {
+ for (size_t i = tracksSpan.initialPositionIndex.integerPosition(); i <= tracksSpan.finalPositionIndex.integerPosition(); ++i) {
const GridTrackSize& trackSize = gridTrackSize(direction, i);
if (!trackSize.maxTrackBreadth().isFlex())
continue;
@@ -632,8 +632,8 @@ void RenderGrid::resolveContentBasedTrackSizingFunctions(GridTrackSizingDirectio
void RenderGrid::resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection direction, GridSizingData& sizingData, RenderBox* gridItem, FilterFunction filterFunction, SizingFunction sizingFunction, AccumulatorGetter trackGetter, AccumulatorGrowFunction trackGrowthFunction)
{
const GridCoordinate coordinate = cachedGridCoordinate(gridItem);
- const size_t initialTrackIndex = (direction == ForColumns) ? coordinate.columns.initialPositionIndex : coordinate.rows.initialPositionIndex;
- const size_t finalTrackIndex = (direction == ForColumns) ? coordinate.columns.finalPositionIndex : coordinate.rows.finalPositionIndex;
+ const size_t initialTrackIndex = (direction == ForColumns) ? coordinate.columns.initialPositionIndex.integerPosition() : coordinate.rows.initialPositionIndex.integerPosition();
+ const size_t finalTrackIndex = (direction == ForColumns) ? coordinate.columns.finalPositionIndex.integerPosition() : coordinate.rows.finalPositionIndex.integerPosition();
sizingData.filteredTracks.shrink(0);
for (size_t trackIndex = initialTrackIndex; trackIndex <= finalTrackIndex; ++trackIndex) {
@@ -727,8 +727,8 @@ void RenderGrid::growGrid(GridTrackSizingDirection direction)
void RenderGrid::insertItemIntoGrid(RenderBox* child, const GridCoordinate& coordinate)
{
- for (size_t row = coordinate.rows.initialPositionIndex; row <= coordinate.rows.finalPositionIndex; ++row) {
- for (size_t column = coordinate.columns.initialPositionIndex; column <= coordinate.columns.finalPositionIndex; ++column)
+ for (size_t row = coordinate.rows.initialPositionIndex.integerPosition(); row <= coordinate.rows.finalPositionIndex.integerPosition(); ++row) {
+ for (size_t column = coordinate.columns.initialPositionIndex.integerPosition(); column <= coordinate.columns.finalPositionIndex.integerPosition(); ++column)
m_grid[row][column].append(child);
}
@@ -807,9 +807,9 @@ void RenderGrid::populateExplicitGridAndOrderIterator()
// |positions| is 0 if we need to run the auto-placement algorithm. Our estimation ignores
// this case as the auto-placement algorithm will grow the grid as needed.
if (rowPositions)
- maximumRowIndex = std::max(maximumRowIndex, rowPositions->finalPositionIndex + 1);
+ maximumRowIndex = std::max(maximumRowIndex, rowPositions->finalPositionIndex.integerPosition() + 1);
if (columnPositions)
- maximumColumnIndex = std::max(maximumColumnIndex, columnPositions->finalPositionIndex + 1);
+ maximumColumnIndex = std::max(maximumColumnIndex, columnPositions->finalPositionIndex.integerPosition() + 1);
}
m_grid.grow(maximumRowIndex);
@@ -821,16 +821,16 @@ void RenderGrid::placeSpecifiedMajorAxisItemsOnGrid(const Vector<RenderBox*>& au
{
for (size_t i = 0; i < autoGridItems.size(); ++i) {
OwnPtr<GridSpan> majorAxisPositions = resolveGridPositionsFromStyle(autoGridItems[i], autoPlacementMajorAxisDirection());
- GridIterator iterator(m_grid, autoPlacementMajorAxisDirection(), majorAxisPositions->initialPositionIndex);
+ GridIterator iterator(m_grid, autoPlacementMajorAxisDirection(), majorAxisPositions->initialPositionIndex.integerPosition());
if (OwnPtr<GridCoordinate> emptyGridArea = iterator.nextEmptyGridArea()) {
- insertItemIntoGrid(autoGridItems[i], emptyGridArea->rows.initialPositionIndex, emptyGridArea->columns.initialPositionIndex);
+ insertItemIntoGrid(autoGridItems[i], emptyGridArea->rows.initialPositionIndex.integerPosition(), emptyGridArea->columns.initialPositionIndex.integerPosition());
continue;
}
growGrid(autoPlacementMinorAxisDirection());
OwnPtr<GridCoordinate> emptyGridArea = iterator.nextEmptyGridArea();
ASSERT(emptyGridArea);
- insertItemIntoGrid(autoGridItems[i], emptyGridArea->rows.initialPositionIndex, emptyGridArea->columns.initialPositionIndex);
+ insertItemIntoGrid(autoGridItems[i], emptyGridArea->rows.initialPositionIndex.integerPosition(), emptyGridArea->columns.initialPositionIndex.integerPosition());
}
}
@@ -846,10 +846,10 @@ void RenderGrid::placeAutoMajorAxisItemOnGrid(RenderBox* gridItem)
ASSERT(!resolveGridPositionsFromStyle(gridItem, autoPlacementMajorAxisDirection()));
size_t minorAxisIndex = 0;
if (minorAxisPositions) {
- minorAxisIndex = minorAxisPositions->initialPositionIndex;
+ minorAxisIndex = minorAxisPositions->initialPositionIndex.integerPosition();
GridIterator iterator(m_grid, autoPlacementMinorAxisDirection(), minorAxisIndex);
if (OwnPtr<GridCoordinate> emptyGridArea = iterator.nextEmptyGridArea()) {
- insertItemIntoGrid(gridItem, emptyGridArea->rows.initialPositionIndex, emptyGridArea->columns.initialPositionIndex);
+ insertItemIntoGrid(gridItem, emptyGridArea->rows.initialPositionIndex.integerPosition(), emptyGridArea->columns.initialPositionIndex.integerPosition());
return;
}
} else {
@@ -857,7 +857,7 @@ void RenderGrid::placeAutoMajorAxisItemOnGrid(RenderBox* gridItem)
for (size_t majorAxisIndex = 0; majorAxisIndex < endOfMajorAxis; ++majorAxisIndex) {
GridIterator iterator(m_grid, autoPlacementMajorAxisDirection(), majorAxisIndex);
if (OwnPtr<GridCoordinate> emptyGridArea = iterator.nextEmptyGridArea()) {
- insertItemIntoGrid(gridItem, emptyGridArea->rows.initialPositionIndex, emptyGridArea->columns.initialPositionIndex);
+ insertItemIntoGrid(gridItem, emptyGridArea->rows.initialPositionIndex.integerPosition(), emptyGridArea->columns.initialPositionIndex.integerPosition());
return;
}
}
@@ -932,8 +932,8 @@ void RenderGrid::layoutGridItems()
#ifndef NDEBUG
const GridCoordinate& coordinate = cachedGridCoordinate(child);
- ASSERT(coordinate.columns.initialPositionIndex < sizingData.columnTracks.size());
- ASSERT(coordinate.rows.initialPositionIndex < sizingData.rowTracks.size());
+ ASSERT(coordinate.columns.initialPositionIndex.integerPosition() < sizingData.columnTracks.size());
+ ASSERT(coordinate.rows.initialPositionIndex.integerPosition() < sizingData.rowTracks.size());
#endif
child->setLogicalLocation(findChildLogicalPosition(child));
@@ -991,27 +991,27 @@ PassOwnPtr<GridSpan> RenderGrid::resolveGridPositionsFromStyle(const RenderBox*
if (initialPosition.shouldBeResolvedAgainstOppositePosition()) {
// Infer the position from the final position ('auto / 1' or 'span 2 / 3' case).
- const size_t finalResolvedPosition = resolveGridPositionFromStyle(finalPosition, finalPositionSide);
+ GridResolvedPosition finalResolvedPosition = resolveGridPositionFromStyle(finalPosition, finalPositionSide);
return resolveGridPositionAgainstOppositePosition(finalResolvedPosition, initialPosition, initialPositionSide);
}
if (finalPosition.shouldBeResolvedAgainstOppositePosition()) {
// Infer our position from the initial position ('1 / auto' or '3 / span 2' case).
- const size_t initialResolvedPosition = resolveGridPositionFromStyle(initialPosition, initialPositionSide);
+ GridResolvedPosition initialResolvedPosition = resolveGridPositionFromStyle(initialPosition, initialPositionSide);
return resolveGridPositionAgainstOppositePosition(initialResolvedPosition, finalPosition, finalPositionSide);
}
- size_t resolvedInitialPosition = resolveGridPositionFromStyle(initialPosition, initialPositionSide);
- size_t resolvedFinalPosition = resolveGridPositionFromStyle(finalPosition, finalPositionSide);
+ GridResolvedPosition resolvedInitialPosition = resolveGridPositionFromStyle(initialPosition, initialPositionSide);
+ GridResolvedPosition resolvedFinalPosition = resolveGridPositionFromStyle(finalPosition, finalPositionSide);
// If 'grid-after' specifies a line at or before that specified by 'grid-before', it computes to 'span 1'.
- if (resolvedFinalPosition < resolvedInitialPosition)
- resolvedFinalPosition = resolvedInitialPosition;
+ if (resolvedFinalPosition.integerPosition() < resolvedInitialPosition.integerPosition())
+ resolvedFinalPosition.setIntegerPosition(resolvedInitialPosition.integerPosition());
- return adoptPtr(new GridSpan(resolvedInitialPosition, resolvedFinalPosition));
+ return adoptPtr(new GridSpan(resolvedInitialPosition.integerPosition(), resolvedFinalPosition.integerPosition()));
}
-size_t RenderGrid::resolveNamedGridLinePositionFromStyle(const GridPosition& position, GridPositionSide side) const
+GridResolvedPosition RenderGrid::resolveNamedGridLinePositionFromStyle(const GridPosition& position, GridPositionSide side) const
{
ASSERT(!position.namedGridLine().isNull());
@@ -1019,9 +1019,9 @@ size_t RenderGrid::resolveNamedGridLinePositionFromStyle(const GridPosition& pos
NamedGridLinesMap::const_iterator it = gridLinesNames.find(position.namedGridLine());
if (it == gridLinesNames.end()) {
if (position.isPositive())
- return 0;
+ return GridResolvedPosition();
const size_t lastLine = explicitGridSizeForSide(side);
- return GridPosition::adjustGridPositionForSide(lastLine, side);
+ return GridResolvedPosition::adjustGridPositionForSide(lastLine, side);
}
size_t namedGridLineIndex;
@@ -1029,10 +1029,10 @@ size_t RenderGrid::resolveNamedGridLinePositionFromStyle(const GridPosition& pos
namedGridLineIndex = std::min<size_t>(position.integerPosition(), it->value.size()) - 1;
else
namedGridLineIndex = std::max<int>(it->value.size() - abs(position.integerPosition()), 0);
- return GridPosition::adjustGridPositionForSide(it->value[namedGridLineIndex], side);
+ return GridResolvedPosition::adjustGridPositionForSide(it->value[namedGridLineIndex], side);
}
-size_t RenderGrid::resolveGridPositionFromStyle(const GridPosition& position, GridPositionSide side) const
+GridResolvedPosition RenderGrid::resolveGridPositionFromStyle(const GridPosition& position, GridPositionSide side) const
{
switch (position.type()) {
case ExplicitPosition: {
@@ -1043,16 +1043,16 @@ size_t RenderGrid::resolveGridPositionFromStyle(const GridPosition& position, Gr
// Handle <integer> explicit position.
if (position.isPositive())
- return GridPosition::adjustGridPositionForSide(position.integerPosition() - 1, side);
+ return GridResolvedPosition::adjustGridPositionForSide(position.integerPosition() - 1, side);
size_t resolvedPosition = abs(position.integerPosition()) - 1;
const size_t endOfTrack = explicitGridSizeForSide(side);
// Per http://lists.w3.org/Archives/Public/www-style/2013Mar/0589.html, we clamp negative value to the first line.
if (endOfTrack < resolvedPosition)
- return 0;
+ return GridResolvedPosition();
- return GridPosition::adjustGridPositionForSide(endOfTrack - resolvedPosition, side);
+ return GridResolvedPosition::adjustGridPositionForSide(endOfTrack - resolvedPosition, side);
}
case NamedGridAreaPosition:
{
@@ -1068,22 +1068,22 @@ size_t RenderGrid::resolveGridPositionFromStyle(const GridPosition& position, Gr
case RowStartSide:
return gridAreaCoordinate.rows.initialPositionIndex;
case RowEndSide:
- return gridAreaCoordinate.rows.finalPositionIndex;
+ return GridResolvedPosition(gridAreaCoordinate.rows.finalPositionIndex);
}
ASSERT_NOT_REACHED();
- return 0;
+ return GridResolvedPosition();
}
case AutoPosition:
case SpanPosition:
// 'auto' and span depend on the opposite position for resolution (e.g. grid-row: auto / 1 or grid-column: span 3 / "myHeader").
ASSERT_NOT_REACHED();
- return 0;
+ return GridResolvedPosition();
}
ASSERT_NOT_REACHED();
- return 0;
+ return GridResolvedPosition();
}
-PassOwnPtr<GridSpan> RenderGrid::resolveGridPositionAgainstOppositePosition(size_t resolvedOppositePosition, const GridPosition& position, GridPositionSide side) const
+PassOwnPtr<GridSpan> RenderGrid::resolveGridPositionAgainstOppositePosition(const GridResolvedPosition& resolvedOppositePosition, const GridPosition& position, GridPositionSide side) const
{
if (position.isAuto())
return GridSpan::create(resolvedOppositePosition, resolvedOppositePosition);
@@ -1099,7 +1099,7 @@ PassOwnPtr<GridSpan> RenderGrid::resolveGridPositionAgainstOppositePosition(size
return GridSpan::createWithSpanAgainstOpposite(resolvedOppositePosition, position, side);
}
-PassOwnPtr<GridSpan> RenderGrid::resolveNamedGridLinePositionAgainstOppositePosition(size_t resolvedOppositePosition, const GridPosition& position, GridPositionSide side) const
+PassOwnPtr<GridSpan> RenderGrid::resolveNamedGridLinePositionAgainstOppositePosition(const GridResolvedPosition& resolvedOppositePosition, const GridPosition& position, GridPositionSide side) const
{
ASSERT(position.isSpan());
ASSERT(!position.namedGridLine().isNull());
@@ -1122,7 +1122,7 @@ LayoutUnit RenderGrid::gridAreaBreadthForChild(const RenderBox* child, GridTrack
const GridCoordinate& coordinate = cachedGridCoordinate(child);
const GridSpan& span = (direction == ForColumns) ? coordinate.columns : coordinate.rows;
LayoutUnit gridAreaBreadth = 0;
- for (size_t trackIndex = span.initialPositionIndex; trackIndex <= span.finalPositionIndex; ++trackIndex)
+ for (size_t trackIndex = span.initialPositionIndex.integerPosition(); trackIndex <= span.finalPositionIndex.integerPosition(); ++trackIndex)
gridAreaBreadth += tracks[trackIndex].m_usedBreadth;
return gridAreaBreadth;
}
@@ -1143,7 +1143,7 @@ void RenderGrid::populateGridPositions(const GridSizingData& sizingData)
LayoutUnit RenderGrid::startOfColumnForChild(const RenderBox* child) const
{
const GridCoordinate& coordinate = cachedGridCoordinate(child);
- LayoutUnit startOfColumn = m_columnPositions[coordinate.columns.initialPositionIndex];
+ LayoutUnit startOfColumn = m_columnPositions[coordinate.columns.initialPositionIndex.integerPosition()];
// The grid items should be inside the grid container's border box, that's why they need to be shifted.
// FIXME: This should account for the grid item's <overflow-position>.
return startOfColumn + marginStartForChild(child);
@@ -1152,13 +1152,13 @@ LayoutUnit RenderGrid::startOfColumnForChild(const RenderBox* child) const
LayoutUnit RenderGrid::endOfColumnForChild(const RenderBox* child) const
{
const GridCoordinate& coordinate = cachedGridCoordinate(child);
- LayoutUnit startOfColumn = m_columnPositions[coordinate.columns.initialPositionIndex];
+ LayoutUnit startOfColumn = m_columnPositions[coordinate.columns.initialPositionIndex.integerPosition()];
// The grid items should be inside the grid container's border box, that's why they need to be shifted.
LayoutUnit columnPosition = startOfColumn + marginStartForChild(child);
- LayoutUnit endOfColumn = m_columnPositions[coordinate.columns.finalPositionIndex + 1];
+ LayoutUnit endOfColumn = m_columnPositions[coordinate.columns.finalPositionIndex.integerPosition() + 1];
// FIXME: This should account for the grid item's <overflow-position>.
- return columnPosition + std::max<LayoutUnit>(0, endOfColumn - m_columnPositions[coordinate.columns.initialPositionIndex] - child->logicalWidth());
+ return columnPosition + std::max<LayoutUnit>(0, endOfColumn - m_columnPositions[coordinate.columns.initialPositionIndex.integerPosition()] - child->logicalWidth());
}
LayoutUnit RenderGrid::columnPositionAlignedWithGridContainerStart(const RenderBox* child) const
@@ -1180,8 +1180,8 @@ LayoutUnit RenderGrid::columnPositionAlignedWithGridContainerEnd(const RenderBox
LayoutUnit RenderGrid::centeredColumnPositionForChild(const RenderBox* child) const
{
const GridCoordinate& coordinate = cachedGridCoordinate(child);
- LayoutUnit startOfColumn = m_columnPositions[coordinate.columns.initialPositionIndex];
- LayoutUnit endOfColumn = m_columnPositions[coordinate.columns.finalPositionIndex + 1];
+ LayoutUnit startOfColumn = m_columnPositions[coordinate.columns.initialPositionIndex.integerPosition()];
+ LayoutUnit endOfColumn = m_columnPositions[coordinate.columns.finalPositionIndex.integerPosition() + 1];
LayoutUnit columnPosition = startOfColumn + marginStartForChild(child);
return columnPosition + std::max<LayoutUnit>(0, endOfColumn - startOfColumn - child->logicalWidth()) / 2;
}
@@ -1250,7 +1250,7 @@ LayoutUnit RenderGrid::rowPositionForChild(const RenderBox* child) const
const GridCoordinate& coordinate = cachedGridCoordinate(child);
// The grid items should be inside the grid container's border box, that's why they need to be shifted.
- LayoutUnit startOfRow = m_rowPositions[coordinate.rows.initialPositionIndex];
+ LayoutUnit startOfRow = m_rowPositions[coordinate.rows.initialPositionIndex.integerPosition()];
LayoutUnit rowPosition = startOfRow + marginBeforeForChild(child);
// FIXME: This function should account for 'align-self'.
@@ -1285,11 +1285,11 @@ public:
GridCoordinate first = m_renderer->cachedGridCoordinate(firstItem);
GridCoordinate second = m_renderer->cachedGridCoordinate(secondItem);
- if (first.rows.initialPositionIndex < second.rows.initialPositionIndex)
+ if (first.rows.initialPositionIndex.integerPosition() < second.rows.initialPositionIndex.integerPosition())
return true;
- if (first.rows.initialPositionIndex > second.rows.initialPositionIndex)
+ if (first.rows.initialPositionIndex.integerPosition() > second.rows.initialPositionIndex.integerPosition())
return false;
- return first.columns.finalPositionIndex < second.columns.finalPositionIndex;
+ return first.columns.finalPositionIndex.integerPosition() < second.columns.finalPositionIndex.integerPosition();
}
private:
RenderGrid* m_renderer;
@@ -1297,17 +1297,17 @@ private:
static inline bool isInSameRowBeforeDirtyArea(const GridCoordinate& coordinate, size_t row, const GridSpan& dirtiedColumns)
{
- return coordinate.rows.initialPositionIndex == row && coordinate.columns.initialPositionIndex < dirtiedColumns.initialPositionIndex;
+ return coordinate.rows.initialPositionIndex.integerPosition() == row && coordinate.columns.initialPositionIndex.integerPosition() < dirtiedColumns.initialPositionIndex.integerPosition();
}
static inline bool isInSameRowAfterDirtyArea(const GridCoordinate& coordinate, size_t row, const GridSpan& dirtiedColumns)
{
- return coordinate.rows.initialPositionIndex == row && coordinate.columns.initialPositionIndex >= dirtiedColumns.finalPositionIndex;
+ return coordinate.rows.initialPositionIndex.integerPosition() == row && coordinate.columns.initialPositionIndex.integerPosition() >= dirtiedColumns.finalPositionIndex.integerPosition();
}
static inline bool rowIsBeforeDirtyArea(const GridCoordinate& coordinate, const GridSpan& dirtiedRows)
{
- return coordinate.rows.initialPositionIndex < dirtiedRows.initialPositionIndex;
+ return coordinate.rows.initialPositionIndex.integerPosition() < dirtiedRows.initialPositionIndex.integerPosition();
}
void RenderGrid::paintChildren(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
@@ -1335,14 +1335,14 @@ void RenderGrid::paintChildren(PaintInfo& paintInfo, const LayoutPoint& paintOff
populator.storeChild(*overflowIterator);
}
- for (size_t row = dirtiedRows.initialPositionIndex; row < dirtiedRows.finalPositionIndex; ++row) {
+ for (size_t row = dirtiedRows.initialPositionIndex.integerPosition(); row < dirtiedRows.finalPositionIndex.integerPosition(); ++row) {
for (; overflowIterator != end && isInSameRowBeforeDirtyArea(cachedGridCoordinate(*overflowIterator), row, dirtiedColumns); ++overflowIterator) {
if ((*overflowIterator)->frameRect().intersects(localRepaintRect))
populator.storeChild(*overflowIterator);
}
- for (size_t column = dirtiedColumns.initialPositionIndex; column < dirtiedColumns.finalPositionIndex; ++column) {
+ for (size_t column = dirtiedColumns.initialPositionIndex.integerPosition(); column < dirtiedColumns.finalPositionIndex.integerPosition(); ++column) {
const Vector<RenderBox*, 1>& children = m_grid[row][column];
// FIXME: If we start adding spanning children in all grid areas they span, this
// would make us paint them several times, which is wrong!

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