Improve presized allocation of lists

Autoported commit. Original commit hash: [15951163c]
aleks-ivanov · May 21, 2024 · 8529d8f · 8529d8f
1 parent f1c93ee
commit 8529d8f
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Showing 3 changed files with 7 additions and 3 deletions.
diff --git a/itext/itext.layout/itext/layout/renderer/CollapsedTableBorders.cs b/itext/itext.layout/itext/layout/renderer/CollapsedTableBorders.cs
@@ -502,7 +502,7 @@ public static Border GetCollapsedBorder(Border cellBorder, Border tableBorder) {
 
         public static IList<Border> GetCollapsedList(IList<Border> innerList, IList<Border> outerList) {
             int size = Math.Min(null == innerList ? 0 : innerList.Count, null == outerList ? 0 : outerList.Count);
-            IList<Border> collapsedList = new List<Border>();
+            IList<Border> collapsedList = new List<Border>(size);
             for (int i = 0; i < size; i++) {
                 collapsedList.Add(GetCollapsedBorder(innerList[i], outerList[i]));
             }

diff --git a/itext/itext.layout/itext/layout/renderer/TableBorderUtil.cs b/itext/itext.layout/itext/layout/renderer/TableBorderUtil.cs
@@ -76,10 +76,14 @@ public static IList<Border> CreateAndFillBorderList(Border border, int size) {
 
         public static IList<Border> CreateAndFillBorderList(IList<Border> originalList, Border borderToCollapse, int
              size) {
-            IList<Border> borderList = new List<Border>();
+            IList<Border> borderList;
             if (null != originalList) {
+                borderList = new List<Border>(originalList.Count + size);
                 borderList.AddAll(originalList);
             }
+            else {
+                borderList = new List<Border>(size);
+            }
             while (borderList.Count < size) {
                 borderList.Add(borderToCollapse);
             }

diff --git a/port-hash b/port-hash
@@ -1 +1 @@
-cfc00f2365e87e6de0128fe028076bf696694a2c
+15951163c968bb91b805b915388550f2e4296bcf
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		cfc00f2365e87e6de0128fe028076bf696694a2c
		15951163c968bb91b805b915388550f2e4296bcf