Make ~/, round, ceil, floor, truncate return ints. Remove toInt.

samples/swarm/Views.dart

Index: samples/swarm/Views.dart
diff --git a/samples/swarm/Views.dart b/samples/swarm/Views.dart
index 296af9e52f5a9d599d71854af654cdcb0da080aa..b8ace079f9060becacb8704f80965d91e89a184d 100644
--- a/samples/swarm/Views.dart
+++ b/samples/swarm/Views.dart
@@ -670,19 +670,19 @@ class FixedSizeListViewLayout<D> implements ListViewLayout<D> {
 
   int getPageLength(int viewLength) {
     final itemsPerPage = (viewLength / _itemLength).floor();
-    return (Math.max(1, itemsPerPage) * _itemLength).toInt();
+    return (Math.max(1, itemsPerPage) * _itemLength);
   }
 
   int getPage(int index, int viewLength) {
-    return (getOffset(index) / getPageLength(viewLength)).floor().toInt();
+    return (getOffset(index) / getPageLength(viewLength)).floor();

[Lasse Reichstein Nielsen, 2013/01/04 10:29:42]

~/ ?

   }
 
   int getPageStartIndex(int page, int viewLength) {
-    return (getPageLength(viewLength) / _itemLength).toInt() * page;
+    return (getPageLength(viewLength) ~/ _itemLength) * page;
   }
 
   int getSnapIndex(num offset, int viewLength) {
-    int index = (-offset / _itemLength).round().toInt();
+    int index = (-offset / _itemLength).round();
     if (_paginate) {
       index = getPageStartIndex(getPage(index, viewLength), viewLength);
     }
@@ -692,13 +692,12 @@ class FixedSizeListViewLayout<D> implements ListViewLayout<D> {
   Interval computeVisibleInterval(
       num offset, num viewLength, num bufferLength) {
     num targetIntervalStart =
-        Math.max(0,((-offset - bufferLength) / _itemLength).floor());
+        Math.max(0, (-offset - bufferLength) ~/ _itemLength);
     num targetIntervalEnd = GoogleMath.clamp(
         ((-offset + viewLength + bufferLength) / _itemLength).ceil(),
         targetIntervalStart,
         _data.length);
-    return new Interval(targetIntervalStart.toInt(),
-                        targetIntervalEnd.toInt());
+    return new Interval(targetIntervalStart, targetIntervalEnd.truncate());
   }
 }
 
@@ -806,7 +805,7 @@ class VariableSizeListViewLayout<D> implements ListViewLayout<D> {
              (_data.length / (_itemOffsets.length - 2));
       }
       return (lengthFromAllButLastElement +
-              Math.max(viewLength, _lengths[_lengths.length - 1])).toInt();
+              Math.max(viewLength, _lengths[_lengths.length - 1])).truncate();
     } else {
       if (_lengths.length == 1) {
         return Math.max(viewLength, _lengths[0]);
@@ -862,7 +861,7 @@ class VariableSizeListViewLayout<D> implements ListViewLayout<D> {
 
   Interval computeVisibleInterval(
     num offset, num viewLength, num bufferLength) {
-    offset = offset.toInt();
+    offset = offset.truncate();
     int start = _findFirstItemBefore(
         -offset - bufferLength,
         _lastVisibleInterval != null ? _lastVisibleInterval.start : 0);