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apply upcoming lint cast_nullable_to_non_nullable (#66455)

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* apply upcoming lint cast_nullable_to_non_nullable

* make RenderObjectElement.renderObject non-nullable
This commit is contained in:
Alexandre Ardhuin 2020-09-27 21:29:42 +02:00 committed by GitHub
parent ec40df9576
commit c2e43403af
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
55 changed files with 277 additions and 278 deletions
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2
packages/flutter/lib/src/foundation/diagnostics.dart
View file

@ -2507,7 +2507,7 @@ class FlagsSummary<T> extends DiagnosticsProperty<Map<String, T>> {
);
@override
Map<String, T> get value => super.value as Map<String, T>;
Map<String, T> get value => super.value!;
@override
String valueToString({TextTreeConfiguration? parentConfiguration}) {

6
packages/flutter/lib/src/painting/box_decoration.dart
View file

@ -251,7 +251,7 @@ class BoxDecoration extends Decoration {
return scale(t);
if (a is BoxDecoration)
return BoxDecoration.lerp(a, this, t);
return super.lerpFrom(a, t) as BoxDecoration;
return super.lerpFrom(a, t) as BoxDecoration?;
}
@override
@ -260,7 +260,7 @@ class BoxDecoration extends Decoration {
return scale(1.0 - t);
if (b is BoxDecoration)
return BoxDecoration.lerp(this, b, t);
return super.lerpTo(b, t) as BoxDecoration;
return super.lerpTo(b, t) as BoxDecoration?;
}
/// Linearly interpolate between two box decorations.
@ -486,7 +486,7 @@ class _BoxDecorationPainter extends BoxPainter {
canvas,
rect,
shape: _decoration.shape,
borderRadius: _decoration.borderRadius as BorderRadius,
borderRadius: _decoration.borderRadius as BorderRadius?,
textDirection: configuration.textDirection,
);
}

4
packages/flutter/lib/src/painting/flutter_logo.dart
View file

@ -148,7 +148,7 @@ class FlutterLogoDecoration extends Decoration {
assert(debugAssertIsValid());
if (a == null || a is FlutterLogoDecoration) {
assert(a == null || a.debugAssertIsValid());
return FlutterLogoDecoration.lerp(a as FlutterLogoDecoration, this, t);
return FlutterLogoDecoration.lerp(a as FlutterLogoDecoration?, this, t);
}
return super.lerpFrom(a, t) as FlutterLogoDecoration?;
}
@ -158,7 +158,7 @@ class FlutterLogoDecoration extends Decoration {
assert(debugAssertIsValid());
if (b == null || b is FlutterLogoDecoration) {
assert(b == null || b.debugAssertIsValid());
return FlutterLogoDecoration.lerp(this, b as FlutterLogoDecoration, t);
return FlutterLogoDecoration.lerp(this, b as FlutterLogoDecoration?, t);
}
return super.lerpTo(b, t) as FlutterLogoDecoration?;
}

12
packages/flutter/lib/src/painting/gradient.dart
View file

@ -442,14 +442,14 @@ class LinearGradient extends Gradient {
@override
Gradient? lerpFrom(Gradient? a, double t) {
if (a == null || (a is LinearGradient))
return LinearGradient.lerp(a as LinearGradient, this, t);
return LinearGradient.lerp(a as LinearGradient?, this, t);
return super.lerpFrom(a, t);
}
@override
Gradient? lerpTo(Gradient? b, double t) {
if (b == null || (b is LinearGradient))
return LinearGradient.lerp(this, b as LinearGradient, t);
return LinearGradient.lerp(this, b as LinearGradient?, t);
return super.lerpTo(b, t);
}
@ -700,14 +700,14 @@ class RadialGradient extends Gradient {
@override
Gradient? lerpFrom(Gradient? a, double t) {
if (a == null || (a is RadialGradient))
return RadialGradient.lerp(a as RadialGradient, this, t);
return RadialGradient.lerp(a as RadialGradient?, this, t);
return super.lerpFrom(a, t);
}
@override
Gradient? lerpTo(Gradient? b, double t) {
if (b == null || (b is RadialGradient))
return RadialGradient.lerp(this, b as RadialGradient, t);
return RadialGradient.lerp(this, b as RadialGradient?, t);
return super.lerpTo(b, t);
}
@ -948,14 +948,14 @@ class SweepGradient extends Gradient {
@override
Gradient? lerpFrom(Gradient? a, double t) {
if (a == null || (a is SweepGradient))
return SweepGradient.lerp(a as SweepGradient, this, t);
return SweepGradient.lerp(a as SweepGradient?, this, t);
return super.lerpFrom(a, t);
}
@override
Gradient? lerpTo(Gradient? b, double t) {
if (b == null || (b is SweepGradient))
return SweepGradient.lerp(this, b as SweepGradient, t);
return SweepGradient.lerp(this, b as SweepGradient?, t);
return super.lerpTo(b, t);
}

4
packages/flutter/lib/src/painting/shape_decoration.dart
View file

@ -194,7 +194,7 @@ class ShapeDecoration extends Decoration {
if (a is BoxDecoration) {
return ShapeDecoration.lerp(ShapeDecoration.fromBoxDecoration(a), this, t);
} else if (a == null || a is ShapeDecoration) {
return ShapeDecoration.lerp(a as ShapeDecoration, this, t);
return ShapeDecoration.lerp(a as ShapeDecoration?, this, t);
}
return super.lerpFrom(a, t) as ShapeDecoration?;
}
@ -204,7 +204,7 @@ class ShapeDecoration extends Decoration {
if (b is BoxDecoration) {
return ShapeDecoration.lerp(this, ShapeDecoration.fromBoxDecoration(b), t);
} else if (b == null || b is ShapeDecoration) {
return ShapeDecoration.lerp(this, b as ShapeDecoration, t);
return ShapeDecoration.lerp(this, b as ShapeDecoration?, t);
}
return super.lerpTo(b, t) as ShapeDecoration?;
}

2
packages/flutter/lib/src/rendering/binding.dart
View file

@ -166,7 +166,7 @@ mixin RendererBinding on BindingBase, ServicesBinding, SchedulerBinding, Gesture
late PipelineOwner _pipelineOwner;
/// The render tree that's attached to the output surface.
RenderView get renderView => _pipelineOwner.rootNode as RenderView;
RenderView get renderView => _pipelineOwner.rootNode! as RenderView;
/// Sets the given [RenderView] object (which must not be null), and its tree, to
/// be the new render tree to display. The previous tree, if any, is detached.
set renderView(RenderView value) {

14
packages/flutter/lib/src/rendering/box.dart
View file

@ -2046,14 +2046,14 @@ abstract class RenderBox extends RenderObject {
if (!constraints.hasBoundedWidth) {
RenderBox node = this;
while (!node.constraints.hasBoundedWidth && node.parent is RenderBox)
node = node.parent as RenderBox;
node = node.parent! as RenderBox;
information.add(node.describeForError('The nearest ancestor providing an unbounded width constraint is'));
}
if (!constraints.hasBoundedHeight) {
RenderBox node = this;
while (!node.constraints.hasBoundedHeight && node.parent is RenderBox)
node = node.parent as RenderBox;
node = node.parent! as RenderBox;
information.add(node.describeForError('The nearest ancestor providing an unbounded height constraint is'));
}
@ -2314,7 +2314,7 @@ abstract class RenderBox extends RenderObject {
}
return true;
}());
final BoxParentData childParentData = child.parentData as BoxParentData;
final BoxParentData childParentData = child.parentData! as BoxParentData;
final Offset offset = childParentData.offset;
transform.translate(offset.dx, offset.dy);
}
@ -2560,7 +2560,7 @@ mixin RenderBoxContainerDefaultsMixin<ChildType extends RenderBox, ParentDataTyp
double? result;
ChildType? child = firstChild;
while (child != null) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
double? candidate = child.getDistanceToActualBaseline(baseline);
if (candidate != null) {
candidate += childParentData.offset.dy;
@ -2587,7 +2587,7 @@ mixin RenderBoxContainerDefaultsMixin<ChildType extends RenderBox, ParentDataTyp
// The x, y parameters have the top left of the node's box as the origin.
ChildType? child = lastChild;
while (child != null) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
final bool isHit = result.addWithPaintOffset(
offset: childParentData.offset,
position: position,
@ -2612,7 +2612,7 @@ mixin RenderBoxContainerDefaultsMixin<ChildType extends RenderBox, ParentDataTyp
void defaultPaint(PaintingContext context, Offset offset) {
ChildType? child = firstChild;
while (child != null) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
context.paintChild(child, childParentData.offset + offset);
child = childParentData.nextSibling;
}
@ -2627,7 +2627,7 @@ mixin RenderBoxContainerDefaultsMixin<ChildType extends RenderBox, ParentDataTyp
final List<ChildType> result = <ChildType>[];
RenderBox? child = firstChild;
while (child != null) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
result.add(child as ChildType);
child = childParentData.nextSibling;
}

6
packages/flutter/lib/src/rendering/custom_layout.dart
View file

@ -197,12 +197,12 @@ abstract class MultiChildLayoutDelegate {
}
return true;
}());
final MultiChildLayoutParentData childParentData = child!.parentData as MultiChildLayoutParentData;
final MultiChildLayoutParentData childParentData = child!.parentData! as MultiChildLayoutParentData;
childParentData.offset = offset;
}
DiagnosticsNode _debugDescribeChild(RenderBox child) {
final MultiChildLayoutParentData childParentData = child.parentData as MultiChildLayoutParentData;
final MultiChildLayoutParentData childParentData = child.parentData! as MultiChildLayoutParentData;
return DiagnosticsProperty<RenderBox>('${childParentData.id}', child);
}
@ -223,7 +223,7 @@ abstract class MultiChildLayoutDelegate {
_idToChild = <Object, RenderBox>{};
RenderBox? child = firstChild;
while (child != null) {
final MultiChildLayoutParentData childParentData = child.parentData as MultiChildLayoutParentData;
final MultiChildLayoutParentData childParentData = child.parentData! as MultiChildLayoutParentData;
assert(() {
if (childParentData.id == null) {
throw FlutterError.fromParts(<DiagnosticsNode>[

2
packages/flutter/lib/src/rendering/debug_overflow_indicator.dart
View file

@ -246,7 +246,7 @@ mixin DebugOverflowIndicatorMixin on RenderObject {
context: ErrorDescription('during layout'),
informationCollector: () sync* {
if (debugCreator != null)
yield DiagnosticsDebugCreator(debugCreator as Object);
yield DiagnosticsDebugCreator(debugCreator!);
yield* overflowHints!;
yield describeForError('The specific $runtimeType in question is');
// TODO(jacobr): this line is ascii art that it would be nice to

20
packages/flutter/lib/src/rendering/flex.dart
View file

@ -528,7 +528,7 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
} else {
inflexibleSpace += childSize(child, extent);
}
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
child = childParentData.nextSibling;
}
return maxFlexFractionSoFar * totalFlex + inflexibleSpace;
@ -563,7 +563,7 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
inflexibleSpace += mainSize;
maxCrossSize = math.max(maxCrossSize, crossSize);
}
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
child = childParentData.nextSibling;
}
@ -578,7 +578,7 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
final int flex = _getFlex(child);
if (flex > 0)
maxCrossSize = math.max(maxCrossSize, childSize(child, spacePerFlex * flex));
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
child = childParentData.nextSibling;
}
@ -630,12 +630,12 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
}
int _getFlex(RenderBox child) {
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
return childParentData.flex ?? 0;
}
FlexFit _getFit(RenderBox child) {
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
return childParentData.fit ?? FlexFit.tight;
}
@ -674,7 +674,7 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
RenderBox? child = firstChild;
RenderBox? lastFlexChild;
while (child != null) {
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
totalChildren++;
final int flex = _getFlex(child);
if (flex > 0) {
@ -696,13 +696,13 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
switch (_direction) {
case Axis.horizontal:
while (!node!.constraints.hasBoundedWidth && node.parent is RenderBox)
node = node.parent as RenderBox;
node = node.parent! as RenderBox;
if (!node.constraints.hasBoundedWidth)
node = null;
break;
case Axis.vertical:
while (!node!.constraints.hasBoundedHeight && node.parent is RenderBox)
node = node.parent as RenderBox;
node = node.parent! as RenderBox;
if (!node.constraints.hasBoundedHeight)
node = null;
break;
@ -854,7 +854,7 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
crossSize = math.max(maxSizeAboveBaseline + maxSizeBelowBaseline, crossSize);
}
}
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
child = childParentData.nextSibling;
}
}
@ -915,7 +915,7 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
double childMainPosition = flipMainAxis ? actualSize - leadingSpace : leadingSpace;
child = firstChild;
while (child != null) {
final FlexParentData childParentData = child.parentData as FlexParentData;
final FlexParentData childParentData = child.parentData! as FlexParentData;
double childCrossPosition;
switch (_crossAxisAlignment) {
case CrossAxisAlignment.start:

10
packages/flutter/lib/src/rendering/flow.dart
View file

@ -305,7 +305,7 @@ class RenderFlow extends RenderBox
_randomAccessChildren.add(child);
final BoxConstraints innerConstraints = _delegate.getConstraintsForChild(i, constraints);
child.layout(innerConstraints, parentUsesSize: true);
final FlowParentData childParentData = child.parentData as FlowParentData;
final FlowParentData childParentData = child.parentData! as FlowParentData;
childParentData.offset = Offset.zero;
child = childParentData.nextSibling;
i += 1;
@ -333,7 +333,7 @@ class RenderFlow extends RenderBox
void paintChild(int i, { Matrix4? transform, double opacity = 1.0 }) {
transform ??= Matrix4.identity();
final RenderBox child = _randomAccessChildren[i];
final FlowParentData childParentData = child.parentData as FlowParentData;
final FlowParentData childParentData = child.parentData! as FlowParentData;
assert(() {
if (childParentData._transform != null) {
throw FlutterError(
@ -369,7 +369,7 @@ class RenderFlow extends RenderBox
_paintingContext = context;
_paintingOffset = offset;
for (final RenderBox child in _randomAccessChildren) {
final FlowParentData childParentData = child.parentData as FlowParentData;
final FlowParentData childParentData = child.parentData! as FlowParentData;
childParentData._transform = null;
}
try {
@ -397,7 +397,7 @@ class RenderFlow extends RenderBox
if (childIndex >= children.length)
continue;
final RenderBox child = children[childIndex];
final FlowParentData childParentData = child.parentData as FlowParentData;
final FlowParentData childParentData = child.parentData! as FlowParentData;
final Matrix4? transform = childParentData._transform;
if (transform == null)
continue;
@ -416,7 +416,7 @@ class RenderFlow extends RenderBox
@override
void applyPaintTransform(RenderBox child, Matrix4 transform) {
final FlowParentData childParentData = child.parentData as FlowParentData;
final FlowParentData childParentData = child.parentData! as FlowParentData;
if (childParentData._transform != null)
transform.multiply(childParentData._transform!);
super.applyPaintTransform(child, transform);

4
packages/flutter/lib/src/rendering/layer.dart
View file

@ -2350,7 +2350,7 @@ class FollowerLayer extends ContainerLayer {
if (_lastTransform != null) {
engineLayer = builder.pushTransform(
_lastTransform!.storage,
oldLayer: _engineLayer as ui.TransformEngineLayer,
oldLayer: _engineLayer as ui.TransformEngineLayer?,
);
addChildrenToScene(builder);
builder.pop();
@ -2360,7 +2360,7 @@ class FollowerLayer extends ContainerLayer {
final Matrix4 matrix = Matrix4.translationValues(unlinkedOffset!.dx, unlinkedOffset!.dy, .0);
engineLayer = builder.pushTransform(
matrix.storage,
oldLayer: _engineLayer as ui.TransformEngineLayer,
oldLayer: _engineLayer as ui.TransformEngineLayer?,
);
addChildrenToScene(builder);
builder.pop();

16
packages/flutter/lib/src/rendering/list_body.dart
View file

@ -127,7 +127,7 @@ class RenderListBody extends RenderBox
final BoxConstraints innerConstraints = BoxConstraints.tightFor(height: constraints.maxHeight);
while (child != null) {
child.layout(innerConstraints, parentUsesSize: true);
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
childParentData.offset = Offset(mainAxisExtent, 0.0);
mainAxisExtent += child.size.width;
assert(child.parentData == childParentData);
@ -139,7 +139,7 @@ class RenderListBody extends RenderBox
final BoxConstraints innerConstraints = BoxConstraints.tightFor(height: constraints.maxHeight);
while (child != null) {
child.layout(innerConstraints, parentUsesSize: true);
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
mainAxisExtent += child.size.width;
assert(child.parentData == childParentData);
child = childParentData.nextSibling;
@ -147,7 +147,7 @@ class RenderListBody extends RenderBox
double position = 0.0;
child = firstChild;
while (child != null) {
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
position += child.size.width;
childParentData.offset = Offset(mainAxisExtent - position, 0.0);
assert(child.parentData == childParentData);
@ -159,7 +159,7 @@ class RenderListBody extends RenderBox
final BoxConstraints innerConstraints = BoxConstraints.tightFor(width: constraints.maxWidth);
while (child != null) {
child.layout(innerConstraints, parentUsesSize: true);
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
childParentData.offset = Offset(0.0, mainAxisExtent);
mainAxisExtent += child.size.height;
assert(child.parentData == childParentData);
@ -171,7 +171,7 @@ class RenderListBody extends RenderBox
final BoxConstraints innerConstraints = BoxConstraints.tightFor(width: constraints.maxWidth);
while (child != null) {
child.layout(innerConstraints, parentUsesSize: true);
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
mainAxisExtent += child.size.height;
assert(child.parentData == childParentData);
child = childParentData.nextSibling;
@ -179,7 +179,7 @@ class RenderListBody extends RenderBox
double position = 0.0;
child = firstChild;
while (child != null) {
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
position += child.size.height;
childParentData.offset = Offset(0.0, mainAxisExtent - position);
assert(child.parentData == childParentData);
@ -202,7 +202,7 @@ class RenderListBody extends RenderBox
RenderBox? child = firstChild;
while (child != null) {
extent = math.max(extent, childSize(child));
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
child = childParentData.nextSibling;
}
return extent;
@ -213,7 +213,7 @@ class RenderListBody extends RenderBox
RenderBox? child = firstChild;
while (child != null) {
extent += childSize(child);
final ListBodyParentData childParentData = child.parentData as ListBodyParentData;
final ListBodyParentData childParentData = child.parentData! as ListBodyParentData;
child = childParentData.nextSibling;
}
return extent;

10
packages/flutter/lib/src/rendering/list_wheel_viewport.dart
View file

@ -617,7 +617,7 @@ class RenderListWheelViewport
/// This relies on the [childManager] maintaining [ListWheelParentData.index].
int indexOf(RenderBox child) {
assert(child != null);
final ListWheelParentData childParentData = child.parentData as ListWheelParentData;
final ListWheelParentData childParentData = child.parentData! as ListWheelParentData;
assert(childParentData.index != null);
return childParentData.index!;
}
@ -644,7 +644,7 @@ class RenderListWheelViewport
void _layoutChild(RenderBox child, BoxConstraints constraints, int index) {
child.layout(constraints, parentUsesSize: true);
final ListWheelParentData childParentData = child.parentData as ListWheelParentData;
final ListWheelParentData childParentData = child.parentData! as ListWheelParentData;
// Centers the child horizontally.
final double crossPosition = size.width / 2.0 - child.size.width / 2.0;
childParentData.offset = Offset(crossPosition, indexToScrollOffset(index));
@ -989,7 +989,7 @@ class RenderListWheelViewport
/// painting coordinates** system.
@override
void applyPaintTransform(RenderBox child, Matrix4 transform) {
final ListWheelParentData parentData = child.parentData as ListWheelParentData;
final ListWheelParentData parentData = child.parentData! as ListWheelParentData;
transform.translate(0.0, _getUntransformedPaintingCoordinateY(parentData.offset.dy));
}
@ -1015,9 +1015,9 @@ class RenderListWheelViewport
// `child` will be the last RenderObject before the viewport when walking up from `target`.
RenderObject child = target;
while (child.parent != this)
child = child.parent as RenderObject;
child = child.parent! as RenderObject;
final ListWheelParentData parentData = child.parentData as ListWheelParentData;
final ListWheelParentData parentData = child.parentData! as ListWheelParentData;
final double targetOffset = parentData.offset.dy; // the so-called "centerPosition"
final Matrix4 transform = target.getTransformTo(child);

70
packages/flutter/lib/src/rendering/object.dart
View file

@ -216,7 +216,7 @@ class PaintingContext extends ClipContext {
}());
}
assert(child._layer is OffsetLayer);
final OffsetLayer childOffsetLayer = child._layer as OffsetLayer;
final OffsetLayer childOffsetLayer = child._layer! as OffsetLayer;
childOffsetLayer.offset = offset;
appendLayer(child._layer!);
}
@ -1383,7 +1383,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
result = true;
break;
}
node = node.parent as RenderObject;
node = node.parent! as RenderObject;
}
return true;
}());
@ -1480,7 +1480,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
while (node != _relayoutBoundary) {
assert(node._relayoutBoundary == _relayoutBoundary);
assert(node.parent != null);
node = node.parent as RenderObject;
node = node.parent! as RenderObject;
if ((!node._needsLayout) && (!node._debugDoingThisLayout))
return false;
}
@ -1706,7 +1706,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
if (!parentUsesSize || sizedByParent || constraints.isTight || parent is! RenderObject) {
relayoutBoundary = this;
} else {
relayoutBoundary = (parent as RenderObject)._relayoutBoundary;
relayoutBoundary = (parent! as RenderObject)._relayoutBoundary;
}
assert(() {
_debugCanParentUseSize = parentUsesSize;
@ -2029,7 +2029,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
return;
_needsCompositingBitsUpdate = true;
if (parent is RenderObject) {
final RenderObject parent = this.parent as RenderObject;
final RenderObject parent = this.parent! as RenderObject;
if (parent._needsCompositingBitsUpdate)
return;
if (!isRepaintBoundary && !parent.isRepaintBoundary) {
@ -2141,7 +2141,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
owner!.requestVisualUpdate();
}
} else if (parent is RenderObject) {
final RenderObject parent = this.parent as RenderObject;
final RenderObject parent = this.parent! as RenderObject;
parent.markNeedsPaint();
assert(parent == this.parent);
} else {
@ -2247,7 +2247,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
assert(() {
if (_needsCompositingBitsUpdate) {
if (parent is RenderObject) {
final RenderObject parent = this.parent as RenderObject;
final RenderObject parent = this.parent! as RenderObject;
bool visitedByParent = false;
parent.visitChildren((RenderObject child) {
if (child == this) {
@ -2381,7 +2381,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
ancestor = rootNode;
}
final List<RenderObject> renderers = <RenderObject>[];
for (RenderObject renderer = this; renderer != ancestor; renderer = renderer.parent as RenderObject) {
for (RenderObject renderer = this; renderer != ancestor; renderer = renderer.parent! as RenderObject) {
assert(renderer != null); // Failed to find ancestor in parent chain.
renderers.add(renderer);
}
@ -2505,7 +2505,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
if (_semantics != null && !_semantics!.isMergedIntoParent) {
_semantics!.sendEvent(semanticsEvent);
} else if (parent != null) {
final RenderObject renderParent = parent as RenderObject;
final RenderObject renderParent = parent! as RenderObject;
renderParent.sendSemanticsEvent(semanticsEvent);
}
}
@ -2585,7 +2585,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
break;
node._needsSemanticsUpdate = true;
node = node.parent as RenderObject;
node = node.parent! as RenderObject;
isEffectiveSemanticsBoundary = node._semanticsConfiguration.isSemanticBoundary;
if (isEffectiveSemanticsBoundary && node._semantics == null) {
// We have reached a semantics boundary that doesn't own a semantics node.
@ -2932,7 +2932,7 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
Curve curve = Curves.ease,
}) {
if (parent is RenderObject) {
final RenderObject renderParent = parent as RenderObject;
final RenderObject renderParent = parent! as RenderObject;
renderParent.showOnScreen(
descendant: descendant ?? this,
rect: rect,
@ -3089,20 +3089,20 @@ mixin ContainerParentDataMixin<ChildType extends RenderObject> on ParentData {
/// Moreover, this is a required mixin for render objects returned to [MultiChildRenderObjectWidget].
mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType extends ContainerParentDataMixin<ChildType>> on RenderObject {
bool _debugUltimatePreviousSiblingOf(ChildType child, { ChildType? equals }) {
ParentDataType childParentData = child.parentData as ParentDataType;
ParentDataType childParentData = child.parentData! as ParentDataType;
while (childParentData.previousSibling != null) {
assert(childParentData.previousSibling != child);
child = childParentData.previousSibling!;
childParentData = child.parentData as ParentDataType;
childParentData = child.parentData! as ParentDataType;
}
return child == equals;
}
bool _debugUltimateNextSiblingOf(ChildType child, { ChildType? equals }) {
ParentDataType childParentData = child.parentData as ParentDataType;
ParentDataType childParentData = child.parentData! as ParentDataType;
while (childParentData.nextSibling != null) {
assert(childParentData.nextSibling != child);
child = childParentData.nextSibling!;
childParentData = child.parentData as ParentDataType;
childParentData = child.parentData! as ParentDataType;
}
return child == equals;
}
@ -3154,7 +3154,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? _firstChild;
ChildType? _lastChild;
void _insertIntoChildList(ChildType child, { ChildType? after }) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
assert(childParentData.nextSibling == null);
assert(childParentData.previousSibling == null);
_childCount += 1;
@ -3163,7 +3163,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
// insert at the start (_firstChild)
childParentData.nextSibling = _firstChild;
if (_firstChild != null) {
final ParentDataType _firstChildParentData = _firstChild!.parentData as ParentDataType;
final ParentDataType _firstChildParentData = _firstChild!.parentData! as ParentDataType;
_firstChildParentData.previousSibling = child;
}
_firstChild = child;
@ -3173,7 +3173,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
assert(_lastChild != null);
assert(_debugUltimatePreviousSiblingOf(after, equals: _firstChild));
assert(_debugUltimateNextSiblingOf(after, equals: _lastChild));
final ParentDataType afterParentData = after.parentData as ParentDataType;
final ParentDataType afterParentData = after.parentData! as ParentDataType;
if (afterParentData.nextSibling == null) {
// insert at the end (_lastChild); we'll end up with two or more children
assert(after == _lastChild);
@ -3186,8 +3186,8 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
childParentData.nextSibling = afterParentData.nextSibling;
childParentData.previousSibling = after;
// set up links from siblings to child
final ParentDataType childPreviousSiblingParentData = childParentData.previousSibling!.parentData as ParentDataType;
final ParentDataType childNextSiblingParentData = childParentData.nextSibling!.parentData as ParentDataType;
final ParentDataType childPreviousSiblingParentData = childParentData.previousSibling!.parentData! as ParentDataType;
final ParentDataType childNextSiblingParentData = childParentData.nextSibling!.parentData! as ParentDataType;
childPreviousSiblingParentData.nextSibling = child;
childNextSiblingParentData.previousSibling = child;
assert(afterParentData.nextSibling == child);
@ -3219,7 +3219,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
}
void _removeFromChildList(ChildType child) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
assert(_debugUltimatePreviousSiblingOf(child, equals: _firstChild));
assert(_debugUltimateNextSiblingOf(child, equals: _lastChild));
assert(_childCount >= 0);
@ -3227,14 +3227,14 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
assert(_firstChild == child);
_firstChild = childParentData.nextSibling;
} else {
final ParentDataType childPreviousSiblingParentData = childParentData.previousSibling!.parentData as ParentDataType;
final ParentDataType childPreviousSiblingParentData = childParentData.previousSibling!.parentData! as ParentDataType;
childPreviousSiblingParentData.nextSibling = childParentData.nextSibling;
}
if (childParentData.nextSibling == null) {
assert(_lastChild == child);
_lastChild = childParentData.previousSibling;
} else {
final ParentDataType childNextSiblingParentData = childParentData.nextSibling!.parentData as ParentDataType;
final ParentDataType childNextSiblingParentData = childParentData.nextSibling!.parentData! as ParentDataType;
childNextSiblingParentData.previousSibling = childParentData.previousSibling;
}
childParentData.previousSibling = null;
@ -3256,7 +3256,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
void removeAll() {
ChildType? child = _firstChild;
while (child != null) {
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
final ChildType? next = childParentData.nextSibling;
childParentData.previousSibling = null;
childParentData.nextSibling = null;
@ -3278,7 +3278,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
assert(after != this);
assert(child != after);
assert(child.parent == this);
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
if (childParentData.previousSibling == after)
return;
_removeFromChildList(child);
@ -3292,7 +3292,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? child = _firstChild;
while (child != null) {
child.attach(owner);
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
child = childParentData.nextSibling;
}
}
@ -3303,7 +3303,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? child = _firstChild;
while (child != null) {
child.detach();
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
child = childParentData.nextSibling;
}
}
@ -3313,7 +3313,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? child = _firstChild;
while (child != null) {
redepthChild(child);
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
child = childParentData.nextSibling;
}
}
@ -3323,7 +3323,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? child = _firstChild;
while (child != null) {
visitor(child);
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
child = childParentData.nextSibling;
}
}
@ -3338,7 +3338,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? childBefore(ChildType child) {
assert(child != null);
assert(child.parent == this);
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
return childParentData.previousSibling;
}
@ -3346,7 +3346,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
ChildType? childAfter(ChildType child) {
assert(child != null);
assert(child.parent == this);
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
return childParentData.nextSibling;
}
@ -3361,7 +3361,7 @@ mixin ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType
if (child == lastChild)
break;
count += 1;
final ParentDataType childParentData = child.parentData as ParentDataType;
final ParentDataType childParentData = child.parentData! as ParentDataType;
child = childParentData.nextSibling!;
}
}
@ -3897,12 +3897,12 @@ class _SemanticsGeometry {
assert(transform != null);
assert(clipRectTransform != null);
assert(clipRectTransform.isIdentity());
RenderObject intermediateParent = child.parent as RenderObject;
RenderObject intermediateParent = child.parent! as RenderObject;
assert(intermediateParent != null);
while (intermediateParent != ancestor) {
intermediateParent.applyPaintTransform(child, transform);
intermediateParent = intermediateParent.parent as RenderObject;
child = child.parent as RenderObject;
intermediateParent = intermediateParent.parent! as RenderObject;
child = child.parent! as RenderObject;
assert(intermediateParent != null);
}
ancestor.applyPaintTransform(child, transform);

8
packages/flutter/lib/src/rendering/paragraph.dart
View file

@ -435,7 +435,7 @@ class RenderParagraph extends RenderBox
bool hitTestChildren(BoxHitTestResult result, { required Offset position }) {
RenderBox? child = firstChild;
while (child != null) {
final TextParentData textParentData = child.parentData as TextParentData;
final TextParentData textParentData = child.parentData! as TextParentData;
final Matrix4 transform = Matrix4.translationValues(
textParentData.offset.dx,
textParentData.offset.dy,
@ -574,7 +574,7 @@ class RenderParagraph extends RenderBox
RenderBox? child = firstChild;
int childIndex = 0;
while (child != null && childIndex < _textPainter.inlinePlaceholderBoxes!.length) {
final TextParentData textParentData = child.parentData as TextParentData;
final TextParentData textParentData = child.parentData! as TextParentData;
textParentData.offset = Offset(
_textPainter.inlinePlaceholderBoxes![childIndex].left,
_textPainter.inlinePlaceholderBoxes![childIndex].top,
@ -706,7 +706,7 @@ class RenderParagraph extends RenderBox
// it until we finish layout, and RenderObject is in immutable state at
// this point.
while (child != null && childIndex < _textPainter.inlinePlaceholderBoxes!.length) {
final TextParentData textParentData = child.parentData as TextParentData;
final TextParentData textParentData = child.parentData! as TextParentData;
final double scale = textParentData.scale!;
context.pushTransform(
@ -920,7 +920,7 @@ class RenderParagraph extends RenderBox
if (info.isPlaceholder) {
if (children.isNotEmpty) {
final SemanticsNode childNode = children.elementAt(placeholderIndex++);
final TextParentData parentData = child!.parentData as TextParentData;
final TextParentData parentData = child!.parentData! as TextParentData;
childNode.rect = Rect.fromLTWH(
childNode.rect.left,
childNode.rect.top,

20
packages/flutter/lib/src/rendering/proxy_box.dart
View file

@ -954,7 +954,7 @@ mixin RenderAnimatedOpacityMixin<T extends RenderObject> on RenderObjectWithChil
return;
}
assert(needsCompositing);
layer = context.pushOpacity(offset, _alpha!, super.paint, oldLayer: layer as OpacityLayer);
layer = context.pushOpacity(offset, _alpha!, super.paint, oldLayer: layer as OpacityLayer?);
}
}
@ -1392,7 +1392,7 @@ class RenderClipRect extends _RenderCustomClip<Rect> {
_clip!,
super.paint,
clipBehavior: clipBehavior,
oldLayer: layer as ClipRectLayer,
oldLayer: layer as ClipRectLayer?,
);
} else {
layer = null;
@ -1480,7 +1480,7 @@ class RenderClipRRect extends _RenderCustomClip<RRect> {
offset,
_clip!.outerRect,
_clip!,
super.paint, clipBehavior: clipBehavior, oldLayer: layer as ClipRRectLayer,
super.paint, clipBehavior: clipBehavior, oldLayer: layer as ClipRRectLayer?,
);
} else {
layer = null;
@ -1559,7 +1559,7 @@ class RenderClipOval extends _RenderCustomClip<Rect> {
_getClipPath(_clip!),
super.paint,
clipBehavior: clipBehavior,
oldLayer: layer as ClipPathLayer,
oldLayer: layer as ClipPathLayer?,
);
} else {
layer = null;
@ -1632,7 +1632,7 @@ class RenderClipPath extends _RenderCustomClip<Path> {
_clip!,
super.paint,
clipBehavior: clipBehavior,
oldLayer: layer as ClipPathLayer,
oldLayer: layer as ClipPathLayer?,
);
} else {
layer = null;
@ -2298,7 +2298,7 @@ class RenderTransform extends RenderProxyBox {
offset,
transform,
super.paint,
oldLayer: layer as TransformLayer,
oldLayer: layer as TransformLayer?,
);
} else {
super.paint(context, offset + childOffset);
@ -2487,7 +2487,7 @@ class RenderFittedBox extends RenderProxyBox {
final Offset? childOffset = MatrixUtils.getAsTranslation(_transform!);
if (childOffset == null)
return context.pushTransform(needsCompositing, offset, _transform!, super.paint,
oldLayer: layer is TransformLayer ? layer as TransformLayer : null);
oldLayer: layer is TransformLayer ? layer! as TransformLayer : null);
else
super.paint(context, offset + childOffset);
return null;
@ -2501,7 +2501,7 @@ class RenderFittedBox extends RenderProxyBox {
if (child != null) {
if (_hasVisualOverflow! && clipBehavior != Clip.none)
layer = context.pushClipRect(needsCompositing, offset, Offset.zero & size, _paintChildWithTransform,
oldLayer: layer is ClipRectLayer ? layer as ClipRectLayer : null, clipBehavior: clipBehavior);
oldLayer: layer is ClipRectLayer ? layer! as ClipRectLayer : null, clipBehavior: clipBehavior);
else
layer = _paintChildWithTransform(context, offset);
}
@ -2954,7 +2954,7 @@ class RenderRepaintBoundary extends RenderProxyBox {
/// * [dart:ui.Scene.toImage] for more information about the image returned.
Future<ui.Image> toImage({ double pixelRatio = 1.0 }) {
assert(!debugNeedsPaint);
final OffsetLayer offsetLayer = layer as OffsetLayer;
final OffsetLayer offsetLayer = layer! as OffsetLayer;
return offsetLayer.toImage(Offset.zero & size, pixelRatio: pixelRatio);
}
@ -4851,7 +4851,7 @@ class RenderLeaderLayer extends RenderProxyBox {
if (layer == null) {
layer = LeaderLayer(link: link, offset: offset);
} else {
final LeaderLayer leaderLayer = layer as LeaderLayer;
final LeaderLayer leaderLayer = layer! as LeaderLayer;
leaderLayer
..link = link
..offset = offset;

4
packages/flutter/lib/src/rendering/proxy_sliver.dart
View file

@ -80,7 +80,7 @@ abstract class RenderProxySliver extends RenderSliver with RenderObjectWithChild
@override
void applyPaintTransform(RenderObject child, Matrix4 transform) {
assert(child != null);
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
childParentData.applyPaintTransform(transform);
}
}
@ -177,7 +177,7 @@ class RenderSliverOpacity extends RenderProxySliver {
offset,
_alpha,
super.paint,
oldLayer: layer as OpacityLayer,
oldLayer: layer as OpacityLayer?,
);
}
}

18
packages/flutter/lib/src/rendering/shifted_box.dart
View file

@ -54,7 +54,7 @@ abstract class RenderShiftedBox extends RenderBox with RenderObjectWithChildMixi
if (child != null) {
assert(!debugNeedsLayout);
result = child!.getDistanceToActualBaseline(baseline);
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
if (result != null)
result += childParentData.offset.dy;
} else {
@ -66,7 +66,7 @@ abstract class RenderShiftedBox extends RenderBox with RenderObjectWithChildMixi
@override
void paint(PaintingContext context, Offset offset) {
if (child != null) {
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
context.paintChild(child!, childParentData.offset + offset);
}
}
@ -74,7 +74,7 @@ abstract class RenderShiftedBox extends RenderBox with RenderObjectWithChildMixi
@override
bool hitTestChildren(BoxHitTestResult result, { required Offset position }) {
if (child != null) {
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
return result.addWithPaintOffset(
offset: childParentData.offset,
position: position,
@ -205,7 +205,7 @@ class RenderPadding extends RenderShiftedBox {
}
final BoxConstraints innerConstraints = constraints.deflate(_resolvedPadding!);
child!.layout(innerConstraints, parentUsesSize: true);
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
childParentData.offset = Offset(_resolvedPadding!.left, _resolvedPadding!.top);
size = constraints.constrain(Size(
_resolvedPadding!.left + child!.size.width + _resolvedPadding!.right,
@ -322,7 +322,7 @@ abstract class RenderAligningShiftedBox extends RenderShiftedBox {
assert(child!.hasSize);
assert(hasSize);
assert(_resolvedAlignment != null);
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
childParentData.offset = _resolvedAlignment!.alongOffset(size - child!.size as Offset);
}
@ -413,7 +413,7 @@ class RenderPositionedBox extends RenderAligningShiftedBox {
..strokeWidth = 1.0
..color = const Color(0xFFFFFF00);
path = Path();
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
if (childParentData.offset.dy > 0.0) {
// vertical alignment arrows
final double headSize = math.min(childParentData.offset.dy * 0.2, 10.0);
@ -688,7 +688,7 @@ class RenderUnconstrainedBox extends RenderAligningShiftedBox with DebugOverflow
child!.layout(childConstraints, parentUsesSize: true);
size = constraints.constrain(child!.size);
alignChild();
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
_overflowContainerRect = Offset.zero & size;
_overflowChildRect = childParentData.offset & child!.size;
} else {
@ -1145,7 +1145,7 @@ class RenderCustomSingleChildLayoutBox extends RenderShiftedBox {
final BoxConstraints childConstraints = delegate.getConstraintsForChild(constraints);
assert(childConstraints.debugAssertIsValid(isAppliedConstraint: true));
child!.layout(childConstraints, parentUsesSize: !childConstraints.isTight);
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
childParentData.offset = delegate.getPositionForChild(size, childConstraints.isTight ? childConstraints.smallest : child!.size);
}
}
@ -1212,7 +1212,7 @@ class RenderBaseline extends RenderShiftedBox {
final double childBaseline = child!.getDistanceToBaseline(baselineType)!;
final double actualBaseline = baseline;
final double top = actualBaseline - childBaseline;
final BoxParentData childParentData = child!.parentData as BoxParentData;
final BoxParentData childParentData = child!.parentData! as BoxParentData;
childParentData.offset = Offset(0.0, top);
final Size childSize = child!.size;
size = constraints.constrain(Size(childSize.width, top + childSize.height));

6
packages/flutter/lib/src/rendering/sliver.dart
View file

@ -1734,7 +1734,7 @@ abstract class RenderSliverSingleBoxAdapter extends RenderSliver with RenderObje
/// [SliverConstraints.growthDirection] and the given geometry.
@protected
void setChildParentData(RenderObject child, SliverConstraints constraints, SliverGeometry geometry) {
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
assert(constraints.axisDirection != null);
assert(constraints.growthDirection != null);
switch (applyGrowthDirectionToAxisDirection(constraints.axisDirection, constraints.growthDirection)) {
@ -1771,14 +1771,14 @@ abstract class RenderSliverSingleBoxAdapter extends RenderSliver with RenderObje
void applyPaintTransform(RenderObject child, Matrix4 transform) {
assert(child != null);
assert(child == this.child);
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
childParentData.applyPaintTransform(transform);
}
@override
void paint(PaintingContext context, Offset offset) {
if (child != null && geometry!.visible) {
final SliverPhysicalParentData childParentData = child!.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child!.parentData! as SliverPhysicalParentData;
context.paintChild(child!, offset + childParentData.paintOffset);
}
}

6
packages/flutter/lib/src/rendering/sliver_fixed_extent_list.dart
View file

@ -222,7 +222,7 @@ abstract class RenderSliverFixedExtentBoxAdaptor extends RenderSliverMultiBoxAda
geometry = SliverGeometry(scrollOffsetCorrection: index * itemExtent);
return;
}
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = indexToLayoutOffset(itemExtent, index);
assert(childParentData.index == index);
trailingChildWithLayout ??= child;
@ -230,7 +230,7 @@ abstract class RenderSliverFixedExtentBoxAdaptor extends RenderSliverMultiBoxAda
if (trailingChildWithLayout == null) {
firstChild!.layout(childConstraints);
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = indexToLayoutOffset(itemExtent, firstIndex);
trailingChildWithLayout = firstChild;
}
@ -250,7 +250,7 @@ abstract class RenderSliverFixedExtentBoxAdaptor extends RenderSliverMultiBoxAda
}
trailingChildWithLayout = child;
assert(child != null);
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
assert(childParentData.index == index);
childParentData.layoutOffset = indexToLayoutOffset(itemExtent, childParentData.index!);
}

8
packages/flutter/lib/src/rendering/sliver_grid.dart
View file

@ -508,7 +508,7 @@ class RenderSliverGrid extends RenderSliverMultiBoxAdaptor {
@override
double childCrossAxisPosition(RenderBox child) {
final SliverGridParentData childParentData = child.parentData as SliverGridParentData;
final SliverGridParentData childParentData = child.parentData! as SliverGridParentData;
return childParentData.crossAxisOffset!;
}
@ -566,7 +566,7 @@ class RenderSliverGrid extends RenderSliverMultiBoxAdaptor {
final RenderBox child = insertAndLayoutLeadingChild(
gridGeometry.getBoxConstraints(constraints),
)!;
final SliverGridParentData childParentData = child.parentData as SliverGridParentData;
final SliverGridParentData childParentData = child.parentData! as SliverGridParentData;
childParentData.layoutOffset = gridGeometry.scrollOffset;
childParentData.crossAxisOffset = gridGeometry.crossAxisOffset;
assert(childParentData.index == index);
@ -576,7 +576,7 @@ class RenderSliverGrid extends RenderSliverMultiBoxAdaptor {
if (trailingChildWithLayout == null) {
firstChild!.layout(firstChildGridGeometry.getBoxConstraints(constraints));
final SliverGridParentData childParentData = firstChild!.parentData as SliverGridParentData;
final SliverGridParentData childParentData = firstChild!.parentData! as SliverGridParentData;
childParentData.layoutOffset = firstChildGridGeometry.scrollOffset;
childParentData.crossAxisOffset = firstChildGridGeometry.crossAxisOffset;
trailingChildWithLayout = firstChild;
@ -597,7 +597,7 @@ class RenderSliverGrid extends RenderSliverMultiBoxAdaptor {
}
trailingChildWithLayout = child;
assert(child != null);
final SliverGridParentData childParentData = child.parentData as SliverGridParentData;
final SliverGridParentData childParentData = child.parentData! as SliverGridParentData;
childParentData.layoutOffset = gridGeometry.scrollOffset;
childParentData.crossAxisOffset = gridGeometry.crossAxisOffset;
assert(childParentData.index == index);

10
packages/flutter/lib/src/rendering/sliver_list.dart
View file

@ -127,7 +127,7 @@ class RenderSliverList extends RenderSliverMultiBoxAdaptor {
// We have to add children before the earliestUsefulChild.
earliestUsefulChild = insertAndLayoutLeadingChild(childConstraints, parentUsesSize: true);
if (earliestUsefulChild == null) {
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = 0.0;
if (scrollOffset == 0.0) {
@ -158,12 +158,12 @@ class RenderSliverList extends RenderSliverMultiBoxAdaptor {
geometry = SliverGeometry(
scrollOffsetCorrection: -firstChildScrollOffset,
);
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = 0.0;
return;
}
final SliverMultiBoxAdaptorParentData childParentData = earliestUsefulChild.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = earliestUsefulChild.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = firstChildScrollOffset;
assert(earliestUsefulChild == firstChild);
leadingChildWithLayout = earliestUsefulChild;
@ -185,7 +185,7 @@ class RenderSliverList extends RenderSliverMultiBoxAdaptor {
earliestUsefulChild = insertAndLayoutLeadingChild(childConstraints, parentUsesSize: true);
assert(earliestUsefulChild != null);
final double firstChildScrollOffset = earliestScrollOffset - paintExtentOf(firstChild!);
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = firstChild!.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = 0.0;
// We only need to correct if the leading child actually has a
// paint extent.
@ -251,7 +251,7 @@ class RenderSliverList extends RenderSliverMultiBoxAdaptor {
trailingChildWithLayout = child;
}
assert(child != null);
final SliverMultiBoxAdaptorParentData childParentData = child!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child!.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.layoutOffset = endScrollOffset;
assert(childParentData.index == index);
endScrollOffset = childScrollOffset(child!)! + paintExtentOf(child!);

22
packages/flutter/lib/src/rendering/sliver_multi_box_adaptor.dart
View file

@ -239,7 +239,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
@override
void adoptChild(RenderObject child) {
super.adoptChild(child);
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
if (!childParentData._keptAlive)
childManager.didAdoptChild(child as RenderBox);
}
@ -281,7 +281,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
// 2. The child is keptAlive.
// In this case, the child is no longer in the childList but might be stored in
// [_keepAliveBucket]. We need to update the location of the child in the bucket.
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
if (!childParentData.keptAlive) {
super.move(child, after: after);
childManager.didAdoptChild(child); // updates the slot in the parentData
@ -314,7 +314,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
@override
void remove(RenderBox child) {
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
if (!childParentData._keptAlive) {
super.remove(child);
return;
@ -340,7 +340,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
assert(constraints == this.constraints);
if (_keepAliveBucket.containsKey(index)) {
final RenderBox child = _keepAliveBucket.remove(index)!;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
assert(childParentData._keptAlive);
dropChild(child);
child.parentData = childParentData;
@ -353,7 +353,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
}
void _destroyOrCacheChild(RenderBox child) {
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
if (childParentData.keepAlive) {
assert(!childParentData._keptAlive);
remove(child);
@ -424,7 +424,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
if (firstChild != null) {
assert(firstChild == lastChild);
assert(indexOf(firstChild!) == index);
final SliverMultiBoxAdaptorParentData firstChildParentData = firstChild!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData firstChildParentData = firstChild!.parentData! as SliverMultiBoxAdaptorParentData;
firstChildParentData.layoutOffset = layoutOffset;
return true;
}
@ -518,11 +518,11 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
// kept alive. (This should cause _keepAliveBucket to change, so we have
// to prepare our list ahead of time.)
_keepAliveBucket.values.where((RenderBox child) {
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
return !childParentData.keepAlive;
}).toList().forEach(_childManager.removeChild);
assert(_keepAliveBucket.values.where((RenderBox child) {
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
return !childParentData.keepAlive;
}).isEmpty);
});
@ -532,7 +532,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
/// [SliverMultiBoxAdaptorParentData.index] field of the child's [parentData].
int indexOf(RenderBox child) {
assert(child != null);
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
assert(childParentData.index != null);
return childParentData.index!;
}
@ -572,7 +572,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
double? childScrollOffset(RenderObject child) {
assert(child != null);
assert(child.parent == this);
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
return childParentData.layoutOffset;
}
@ -676,7 +676,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
if (firstChild != null) {
RenderBox? child = firstChild;
while (true) {
final SliverMultiBoxAdaptorParentData childParentData = child!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child!.parentData! as SliverMultiBoxAdaptorParentData;
children.add(child.toDiagnosticsNode(name: 'child with index ${childParentData.index}'));
if (child == lastChild)
break;

10
packages/flutter/lib/src/rendering/sliver_padding.dart
View file

@ -187,7 +187,7 @@ abstract class RenderSliverEdgeInsetsPadding extends RenderSliver with RenderObj
hasVisualOverflow: childLayoutGeometry.hasVisualOverflow,
);
final SliverPhysicalParentData childParentData = child!.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child!.parentData! as SliverPhysicalParentData;
assert(constraints.axisDirection != null);
assert(constraints.growthDirection != null);
switch (applyGrowthDirectionToAxisDirection(constraints.axisDirection, constraints.growthDirection)) {
@ -214,7 +214,7 @@ abstract class RenderSliverEdgeInsetsPadding extends RenderSliver with RenderObj
@override
bool hitTestChildren(SliverHitTestResult result, { required double mainAxisPosition, required double crossAxisPosition }) {
if (child != null && child!.geometry!.hitTestExtent > 0.0) {
final SliverPhysicalParentData childParentData = child!.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child!.parentData! as SliverPhysicalParentData;
result.addWithAxisOffset(
mainAxisPosition: mainAxisPosition,
crossAxisPosition: crossAxisPosition,
@ -262,14 +262,14 @@ abstract class RenderSliverEdgeInsetsPadding extends RenderSliver with RenderObj
void applyPaintTransform(RenderObject child, Matrix4 transform) {
assert(child != null);
assert(child == this.child);
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
childParentData.applyPaintTransform(transform);
}
@override
void paint(PaintingContext context, Offset offset) {
if (child != null && child!.geometry!.visible) {
final SliverPhysicalParentData childParentData = child!.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child!.parentData! as SliverPhysicalParentData;
context.paintChild(child!, offset + childParentData.paintOffset);
}
}
@ -285,7 +285,7 @@ abstract class RenderSliverEdgeInsetsPadding extends RenderSliver with RenderObj
Rect? innerRect;
if (child != null) {
childSize = child!.getAbsoluteSize();
final SliverPhysicalParentData childParentData = child!.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child!.parentData! as SliverPhysicalParentData;
innerRect = (offset + childParentData.paintOffset) & childSize;
assert(innerRect.top >= outerRect.top);
assert(innerRect.left >= outerRect.left);

12
packages/flutter/lib/src/rendering/stack.dart
View file

@ -438,7 +438,7 @@ class RenderStack extends RenderBox
double extent = 0.0;
RenderBox? child = firstChild;
while (child != null) {
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
if (!childParentData.isPositioned)
extent = math.max(extent, mainChildSizeGetter(child));
assert(child.parentData == childParentData);
@ -556,7 +556,7 @@ class RenderStack extends RenderBox
RenderBox? child = firstChild;
while (child != null) {
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
if (!childParentData.isPositioned) {
hasNonPositionedChildren = true;
@ -583,7 +583,7 @@ class RenderStack extends RenderBox
child = firstChild;
while (child != null) {
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
if (!childParentData.isPositioned) {
childParentData.offset = _resolvedAlignment!.alongOffset(size - child.size as Offset);
@ -674,7 +674,7 @@ class RenderIndexedStack extends RenderStack {
RenderBox? child = firstChild;
int i = 0;
while (child != null && i < index!) {
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
child = childParentData.nextSibling;
i += 1;
}
@ -689,7 +689,7 @@ class RenderIndexedStack extends RenderStack {
return false;
assert(position != null);
final RenderBox child = _childAtIndex();
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
return result.addWithPaintOffset(
offset: childParentData.offset,
position: position,
@ -705,7 +705,7 @@ class RenderIndexedStack extends RenderStack {
if (firstChild == null || index == null)
return;
final RenderBox child = _childAtIndex();
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
context.paintChild(child, childParentData.offset + offset);
}

8
packages/flutter/lib/src/rendering/table.dart
View file

@ -1043,7 +1043,7 @@ class RenderTable extends RenderBox {
final int xy = x + y * columns;
final RenderBox? child = _children[xy];
if (child != null) {
final TableCellParentData childParentData = child.parentData as TableCellParentData;
final TableCellParentData childParentData = child.parentData! as TableCellParentData;
assert(childParentData != null);
childParentData.x = x;
childParentData.y = y;
@ -1082,7 +1082,7 @@ class RenderTable extends RenderBox {
final int xy = x + y * columns;
final RenderBox? child = _children[xy];
if (child != null) {
final TableCellParentData childParentData = child.parentData as TableCellParentData;
final TableCellParentData childParentData = child.parentData! as TableCellParentData;
switch (childParentData.verticalAlignment ?? defaultVerticalAlignment) {
case TableCellVerticalAlignment.baseline:
if (baselines[x] != null)
@ -1117,7 +1117,7 @@ class RenderTable extends RenderBox {
for (int index = _children.length - 1; index >= 0; index -= 1) {
final RenderBox? child = _children[index];
if (child != null) {
final BoxParentData childParentData = child.parentData as BoxParentData;
final BoxParentData childParentData = child.parentData! as BoxParentData;
final bool isHit = result.addWithPaintOffset(
offset: childParentData.offset,
position: position,
@ -1163,7 +1163,7 @@ class RenderTable extends RenderBox {
for (int index = 0; index < _children.length; index += 1) {
final RenderBox? child = _children[index];
if (child != null) {
final BoxParentData childParentData = child.parentData as BoxParentData;
final BoxParentData childParentData = child.parentData! as BoxParentData;
context.paintChild(child, childParentData.offset + offset);
}
}

20
packages/flutter/lib/src/rendering/viewport.dart
View file

@ -736,7 +736,7 @@ abstract class RenderViewportBase<ParentDataClass extends ContainerParentDataMix
RenderBox? pivot;
bool onlySlivers = target is RenderSliver; // ... between viewport and `target` (`target` included).
while (child.parent != this) {
final RenderObject parent = child.parent as RenderObject;
final RenderObject parent = child.parent! as RenderObject;
assert(parent != null, '$target must be a descendant of $this');
if (child is RenderBox) {
pivot = child;
@ -763,7 +763,7 @@ abstract class RenderViewportBase<ParentDataClass extends ContainerParentDataMix
assert(pivot.parent != this);
assert(pivot != this);
assert(pivot.parent is RenderSliver); // TODO(abarth): Support other kinds of render objects besides slivers.
final RenderSliver pivotParent = pivot.parent as RenderSliver;
final RenderSliver pivotParent = pivot.parent! as RenderSliver;
growthDirection = pivotParent.constraints.growthDirection;
switch (axis) {
case Axis.horizontal:
@ -1186,7 +1186,7 @@ abstract class RenderViewportBase<ParentDataClass extends ContainerParentDataMix
} else {
// `descendant` is between leading and trailing edge and hence already
// fully shown on screen. No action necessary.
final Matrix4 transform = descendant.getTransformTo(viewport.parent as RenderObject);
final Matrix4 transform = descendant.getTransformTo(viewport.parent! as RenderObject);
return MatrixUtils.transformRect(transform, rect ?? descendant.paintBounds);
}
@ -1592,13 +1592,13 @@ class RenderViewport extends RenderViewportBase<SliverPhysicalContainerParentDat
@override
void updateChildLayoutOffset(RenderSliver child, double layoutOffset, GrowthDirection growthDirection) {
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
childParentData.paintOffset = computeAbsolutePaintOffset(child, layoutOffset, growthDirection);
}
@override
Offset paintOffsetOf(RenderSliver child) {
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
return childParentData.paintOffset;
}
@ -1656,7 +1656,7 @@ class RenderViewport extends RenderViewportBase<SliverPhysicalContainerParentDat
void applyPaintTransform(RenderObject child, Matrix4 transform) {
// Hit test logic relies on this always providing an invertible matrix.
assert(child != null);
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
childParentData.applyPaintTransform(transform);
}
@ -1664,7 +1664,7 @@ class RenderViewport extends RenderViewportBase<SliverPhysicalContainerParentDat
double computeChildMainAxisPosition(RenderSliver child, double parentMainAxisPosition) {
assert(child != null);
assert(child.constraints != null);
final SliverPhysicalParentData childParentData = child.parentData as SliverPhysicalParentData;
final SliverPhysicalParentData childParentData = child.parentData! as SliverPhysicalParentData;
switch (applyGrowthDirectionToAxisDirection(child.constraints.axisDirection, child.constraints.growthDirection)) {
case AxisDirection.down:
return parentMainAxisPosition - childParentData.paintOffset.dy;
@ -1931,13 +1931,13 @@ class RenderShrinkWrappingViewport extends RenderViewportBase<SliverLogicalConta
@override
void updateChildLayoutOffset(RenderSliver child, double layoutOffset, GrowthDirection growthDirection) {
assert(growthDirection == GrowthDirection.forward);
final SliverLogicalParentData childParentData = child.parentData as SliverLogicalParentData;
final SliverLogicalParentData childParentData = child.parentData! as SliverLogicalParentData;
childParentData.layoutOffset = layoutOffset;
}
@override
Offset paintOffsetOf(RenderSliver child) {
final SliverLogicalParentData childParentData = child.parentData as SliverLogicalParentData;
final SliverLogicalParentData childParentData = child.parentData! as SliverLogicalParentData;
return computeAbsolutePaintOffset(child, childParentData.layoutOffset!, GrowthDirection.forward);
}
@ -1980,7 +1980,7 @@ class RenderShrinkWrappingViewport extends RenderViewportBase<SliverLogicalConta
assert(child != null);
assert(child.constraints != null);
assert(hasSize);
final SliverLogicalParentData childParentData = child.parentData as SliverLogicalParentData;
final SliverLogicalParentData childParentData = child.parentData! as SliverLogicalParentData;
switch (applyGrowthDirectionToAxisDirection(child.constraints.axisDirection, child.constraints.growthDirection)) {
case AxisDirection.down:
case AxisDirection.right:

4
packages/flutter/lib/src/rendering/wrap.dart
View file

@ -630,7 +630,7 @@ class RenderWrap extends RenderBox
runMainAxisExtent += spacing;
runCrossAxisExtent = math.max(runCrossAxisExtent, childCrossAxisExtent);
childCount += 1;
final WrapParentData childParentData = child.parentData as WrapParentData;
final WrapParentData childParentData = child.parentData! as WrapParentData;
childParentData._runIndex = runMetrics.length;
child = childParentData.nextSibling;
}
@ -731,7 +731,7 @@ class RenderWrap extends RenderBox
crossAxisOffset -= runCrossAxisExtent;
while (child != null) {
final WrapParentData childParentData = child.parentData as WrapParentData;
final WrapParentData childParentData = child.parentData! as WrapParentData;
if (childParentData._runIndex != i)
break;
final double childMainAxisExtent = _getMainAxisExtent(child);

2
packages/flutter/lib/src/services/asset_bundle.dart
View file

@ -182,7 +182,7 @@ abstract class CachingAssetBundle extends AssetBundle {
assert(key != null);
assert(parser != null);
if (_structuredDataCache.containsKey(key))
return _structuredDataCache[key] as Future<T>;
return _structuredDataCache[key]! as Future<T>;
Completer<T>? completer;
Future<T>? result;
loadString(key, cache: false).then<T>(parser).then<void>((T value) {

6
packages/flutter/lib/src/widgets/basic.dart
View file

@ -1964,7 +1964,7 @@ class LayoutId extends ParentDataWidget<MultiChildLayoutParentData> {
@override
void applyParentData(RenderObject renderObject) {
assert(renderObject.parentData is MultiChildLayoutParentData);
final MultiChildLayoutParentData parentData = renderObject.parentData as MultiChildLayoutParentData;
final MultiChildLayoutParentData parentData = renderObject.parentData! as MultiChildLayoutParentData;
if (parentData.id != id) {
parentData.id = id;
final AbstractNode? targetParent = renderObject.parent;
@ -3654,7 +3654,7 @@ class Positioned extends ParentDataWidget<StackParentData> {
@override
void applyParentData(RenderObject renderObject) {
assert(renderObject.parentData is StackParentData);
final StackParentData parentData = renderObject.parentData as StackParentData;
final StackParentData parentData = renderObject.parentData! as StackParentData;
bool needsLayout = false;
if (parentData.left != left) {
@ -4550,7 +4550,7 @@ class Flexible extends ParentDataWidget<FlexParentData> {
@override
void applyParentData(RenderObject renderObject) {
assert(renderObject.parentData is FlexParentData);
final FlexParentData parentData = renderObject.parentData as FlexParentData;
final FlexParentData parentData = renderObject.parentData! as FlexParentData;
bool needsLayout = false;
if (parentData.flex != flex) {

2
packages/flutter/lib/src/widgets/binding.dart
View file

@ -964,7 +964,7 @@ mixin WidgetsBinding on BindingBase, ServicesBinding, SchedulerBinding, GestureB
container: renderView,
debugShortDescription: '[root]',
child: rootWidget,
).attachToRenderTree(buildOwner!, renderViewElement as RenderObjectToWidgetElement<RenderBox>);
).attachToRenderTree(buildOwner!, renderViewElement as RenderObjectToWidgetElement<RenderBox>?);
}
/// Whether the [renderViewElement] has been initialized.

2
packages/flutter/lib/src/widgets/color_filter.dart
View file

@ -57,6 +57,6 @@ class _ColorFilterRenderObject extends RenderProxyBox {
@override
void paint(PaintingContext context, Offset offset) {
layer = context.pushColorFilter(offset, colorFilter, super.paint, oldLayer: layer as ColorFilterLayer);
layer = context.pushColorFilter(offset, colorFilter, super.paint, oldLayer: layer as ColorFilterLayer?);
}
}

8
packages/flutter/lib/src/widgets/drag_target.dart
View file

@ -379,7 +379,7 @@ class _DraggableState<T extends Object> extends State<Draggable<T>> {
Offset dragStartPoint;
switch (widget.dragAnchor) {
case DragAnchor.child:
final RenderBox renderObject = context.findRenderObject() as RenderBox;
final RenderBox renderObject = context.findRenderObject()! as RenderBox;
dragStartPoint = renderObject.globalToLocal(position);
break;
case DragAnchor.pointer:
@ -593,9 +593,9 @@ class _DragTargetState<T extends Object> extends State<DragTarget<T>> {
_candidateAvatars.remove(avatar);
});
if (widget.onAccept != null)
widget.onAccept!(avatar.data as T);
widget.onAccept!(avatar.data! as T);
if (widget.onAcceptWithDetails != null)
widget.onAcceptWithDetails!(DragTargetDetails<T>(data: avatar.data as T, offset: avatar._lastOffset!));
widget.onAcceptWithDetails!(DragTargetDetails<T>(data: avatar.data! as T, offset: avatar._lastOffset!));
}
void didMove(_DragAvatar<Object> avatar) {
@ -763,7 +763,7 @@ class _DragAvatar<T extends Object> extends Drag {
}
Widget _build(BuildContext context) {
final RenderBox box = overlayState.context.findRenderObject() as RenderBox;
final RenderBox box = overlayState.context.findRenderObject()! as RenderBox;
final Offset overlayTopLeft = box.localToGlobal(Offset.zero);
return Positioned(
left: _lastOffset!.dx - overlayTopLeft.dx,

4
packages/flutter/lib/src/widgets/fade_in_image.dart
View file

@ -453,12 +453,12 @@ class _AnimatedFadeOutFadeInState extends ImplicitlyAnimatedWidgetState<_Animate
_targetOpacity,
widget.isTargetLoaded ? 1.0 : 0.0,
(dynamic value) => Tween<double>(begin: value as double),
) as Tween<double>;
) as Tween<double>?;
_placeholderOpacity = visitor(
_placeholderOpacity,
widget.isTargetLoaded ? 0.0 : 1.0,
(dynamic value) => Tween<double>(begin: value as double),
) as Tween<double>;
) as Tween<double>?;
}
@override

2
packages/flutter/lib/src/widgets/focus_manager.dart
View file

@ -1745,7 +1745,7 @@ class FocusManager with DiagnosticableTreeMixin, ChangeNotifier {
properties.add(FlagProperty('haveScheduledUpdate', value: _haveScheduledUpdate, ifTrue: 'UPDATE SCHEDULED'));
properties.add(DiagnosticsProperty<FocusNode>('primaryFocus', primaryFocus, defaultValue: null));
properties.add(DiagnosticsProperty<FocusNode>('nextFocus', _markedForFocus, defaultValue: null));
final Element element = primaryFocus?.context as Element;
final Element? element = primaryFocus?.context as Element?;
if (element != null) {
properties.add(DiagnosticsProperty<String>('primaryFocusCreator', element.debugGetCreatorChain(20)));
}

36
packages/flutter/lib/src/widgets/framework.dart
View file

@ -269,7 +269,7 @@ abstract class GlobalKey<T extends State<StatefulWidget>> extends Key {
assert(element != null);
assert(element.widget != null);
assert(element.widget.key != null);
final GlobalKey key = element.widget.key as GlobalKey;
final GlobalKey key = element.widget.key! as GlobalKey;
assert(_registry.containsKey(key));
duplicates ??= <GlobalKey, Set<Element>>{};
// Uses ordered set to produce consistent error message.
@ -5433,8 +5433,8 @@ abstract class RenderObjectElement extends Element {
/// The underlying [RenderObject] for this element.
@override
RenderObject? get renderObject => _renderObject;
RenderObject? _renderObject;
RenderObject get renderObject => _renderObject;
late RenderObject _renderObject;
bool _debugDoingBuild = false;
@override
@ -5442,11 +5442,11 @@ abstract class RenderObjectElement extends Element {
RenderObjectElement? _ancestorRenderObjectElement;
RenderObjectElement _findAncestorRenderObjectElement() {
RenderObjectElement? _findAncestorRenderObjectElement() {
Element? ancestor = _parent;
while (ancestor != null && ancestor is! RenderObjectElement)
ancestor = ancestor._parent;
return ancestor as RenderObjectElement;
return ancestor as RenderObjectElement?;
}
ParentDataElement<ParentData>? _findAncestorParentDataElement() {
@ -5468,7 +5468,7 @@ abstract class RenderObjectElement extends Element {
ancestor = ancestor!._parent;
while (ancestor != null && ancestor is! RenderObjectElement) {
if (ancestor is ParentDataElement<ParentData>) {
badAncestors.add(ancestor as ParentDataElement<ParentData>);
badAncestors.add(ancestor! as ParentDataElement<ParentData>);
}
ancestor = ancestor!._parent;
}
@ -5526,7 +5526,7 @@ abstract class RenderObjectElement extends Element {
_debugDoingBuild = true;
return true;
}());
widget.updateRenderObject(this, renderObject!);
widget.updateRenderObject(this, renderObject);
assert(() {
_debugDoingBuild = false;
return true;
@ -5536,7 +5536,7 @@ abstract class RenderObjectElement extends Element {
void _debugUpdateRenderObjectOwner() {
assert(() {
_renderObject!.debugCreator = DebugCreator(this);
_renderObject.debugCreator = DebugCreator(this);
return true;
}());
}
@ -5547,7 +5547,7 @@ abstract class RenderObjectElement extends Element {
_debugDoingBuild = true;
return true;
}());
widget.updateRenderObject(this, renderObject!);
widget.updateRenderObject(this, renderObject);
assert(() {
_debugDoingBuild = false;
return true;
@ -5759,7 +5759,7 @@ abstract class RenderObjectElement extends Element {
@override
void deactivate() {
super.deactivate();
assert(!renderObject!.attached,
assert(!renderObject.attached,
'A RenderObject was still attached when attempting to deactivate its '
'RenderObjectElement: $renderObject');
}
@ -5767,22 +5767,22 @@ abstract class RenderObjectElement extends Element {
@override
void unmount() {
super.unmount();
assert(!renderObject!.attached,
assert(!renderObject.attached,
'A RenderObject was still attached when attempting to unmount its '
'RenderObjectElement: $renderObject');
widget.didUnmountRenderObject(renderObject!);
widget.didUnmountRenderObject(renderObject);
}
void _updateParentData(ParentDataWidget<ParentData> parentDataWidget) {
bool applyParentData = true;
assert(() {
try {
if (!parentDataWidget.debugIsValidRenderObject(renderObject!)) {
if (!parentDataWidget.debugIsValidRenderObject(renderObject)) {
applyParentData = false;
throw FlutterError.fromParts(<DiagnosticsNode>[
ErrorSummary('Incorrect use of ParentDataWidget.'),
...parentDataWidget._debugDescribeIncorrectParentDataType(
parentData: renderObject!.parentData,
parentData: renderObject.parentData,
parentDataCreator: _ancestorRenderObjectElement!.widget,
ownershipChain: ErrorDescription(debugGetCreatorChain(10)),
),
@ -5797,7 +5797,7 @@ abstract class RenderObjectElement extends Element {
return true;
}());
if (applyParentData)
parentDataWidget.applyParentData(renderObject!);
parentDataWidget.applyParentData(renderObject);
}
@override
@ -5806,7 +5806,7 @@ abstract class RenderObjectElement extends Element {
assert(oldSlot != newSlot);
super._updateSlot(newSlot);
assert(slot == newSlot);
_ancestorRenderObjectElement!.moveRenderObjectChild(renderObject!, oldSlot, slot);
_ancestorRenderObjectElement!.moveRenderObjectChild(renderObject, oldSlot, slot);
}
@override
@ -5814,7 +5814,7 @@ abstract class RenderObjectElement extends Element {
assert(_ancestorRenderObjectElement == null);
_slot = newSlot;
_ancestorRenderObjectElement = _findAncestorRenderObjectElement();
_ancestorRenderObjectElement?.insertRenderObjectChild(renderObject!, newSlot);
_ancestorRenderObjectElement?.insertRenderObjectChild(renderObject, newSlot);
final ParentDataElement<ParentData>? parentDataElement = _findAncestorParentDataElement();
if (parentDataElement != null)
_updateParentData(parentDataElement.widget);
@ -5823,7 +5823,7 @@ abstract class RenderObjectElement extends Element {
@override
void detachRenderObject() {
if (_ancestorRenderObjectElement != null) {
_ancestorRenderObjectElement!.removeRenderObjectChild(renderObject!, slot);
_ancestorRenderObjectElement!.removeRenderObjectChild(renderObject, slot);
_ancestorRenderObjectElement = null;
}
_slot = null;

4
packages/flutter/lib/src/widgets/gesture_detector.dart
View file

@ -1130,14 +1130,14 @@ class RawGestureDetectorState extends State<RawGestureDetector> {
'To set the gesture recognizers at other times, trigger a new build using setState() '
'and provide the new gesture recognizers as constructor arguments to the corresponding '
'RawGestureDetector or GestureDetector object.'
)
),
]);
}
return true;
}());
_syncAll(gestures);
if (!widget.excludeFromSemantics) {
final RenderSemanticsGestureHandler semanticsGestureHandler = context.findRenderObject() as RenderSemanticsGestureHandler;
final RenderSemanticsGestureHandler semanticsGestureHandler = context.findRenderObject()! as RenderSemanticsGestureHandler;
_updateSemanticsForRenderObject(semanticsGestureHandler);
}
}

6
packages/flutter/lib/src/widgets/heroes.dart
View file

@ -74,7 +74,7 @@ enum HeroFlightDirection {
// The bounding box for context in ancestorContext coordinate system, or in the global
// coordinate system when null.
Rect _boundingBoxFor(BuildContext context, [BuildContext? ancestorContext]) {
final RenderBox box = context.findRenderObject() as RenderBox;
final RenderBox box = context.findRenderObject()! as RenderBox;
assert(box != null && box.hasSize);
return MatrixUtils.transformRect(
box.getTransformTo(ancestorContext?.findRenderObject()),
@ -345,7 +345,7 @@ class _HeroState extends State<Hero> {
void startFlight({ bool shouldIncludedChildInPlaceholder = false }) {
_shouldIncludeChild = shouldIncludedChildInPlaceholder;
assert(mounted);
final RenderBox box = context.findRenderObject() as RenderBox;
final RenderBox box = context.findRenderObject()! as RenderBox;
assert(box != null && box.hasSize);
setState(() {
_placeholderSize = box.size;
@ -504,7 +504,7 @@ class _HeroFlight {
} else if (toHeroBox.hasSize) {
// The toHero has been laid out. If it's no longer where the hero animation is
// supposed to end up then recreate the heroRect tween.
final RenderBox finalRouteBox = manifest!.toRoute.subtreeContext?.findRenderObject() as RenderBox;
final RenderBox? finalRouteBox = manifest!.toRoute.subtreeContext?.findRenderObject() as RenderBox?;
final Offset toHeroOrigin = toHeroBox.localToGlobal(Offset.zero, ancestor: finalRouteBox);
if (toHeroOrigin != heroRectTween.end!.topLeft) {
final Rect heroRectEnd = toHeroOrigin & heroRectTween.end!.size;

2
packages/flutter/lib/src/widgets/image_filter.dart
View file

@ -68,7 +68,7 @@ class _ImageFilterRenderObject extends RenderProxyBox {
if (layer == null) {
layer = ImageFilterLayer(imageFilter: imageFilter);
} else {
final ImageFilterLayer filterLayer = layer as ImageFilterLayer;
final ImageFilterLayer filterLayer = layer! as ImageFilterLayer;
filterLayer.imageFilter = imageFilter;
}
context.pushLayer(layer!, super.paint, offset);

60
packages/flutter/lib/src/widgets/implicit_animations.dart
View file

@ -736,13 +736,13 @@ class _AnimatedContainerState extends AnimatedWidgetBaseState<AnimatedContainer>
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_alignment = visitor(_alignment, widget.alignment, (dynamic value) => AlignmentGeometryTween(begin: value as AlignmentGeometry)) as AlignmentGeometryTween;
_padding = visitor(_padding, widget.padding, (dynamic value) => EdgeInsetsGeometryTween(begin: value as EdgeInsetsGeometry)) as EdgeInsetsGeometryTween;
_decoration = visitor(_decoration, widget.decoration, (dynamic value) => DecorationTween(begin: value as Decoration)) as DecorationTween;
_foregroundDecoration = visitor(_foregroundDecoration, widget.foregroundDecoration, (dynamic value) => DecorationTween(begin: value as Decoration)) as DecorationTween;
_constraints = visitor(_constraints, widget.constraints, (dynamic value) => BoxConstraintsTween(begin: value as BoxConstraints)) as BoxConstraintsTween;
_margin = visitor(_margin, widget.margin, (dynamic value) => EdgeInsetsGeometryTween(begin: value as EdgeInsetsGeometry)) as EdgeInsetsGeometryTween;
_transform = visitor(_transform, widget.transform, (dynamic value) => Matrix4Tween(begin: value as Matrix4)) as Matrix4Tween;
_alignment = visitor(_alignment, widget.alignment, (dynamic value) => AlignmentGeometryTween(begin: value as AlignmentGeometry)) as AlignmentGeometryTween?;
_padding = visitor(_padding, widget.padding, (dynamic value) => EdgeInsetsGeometryTween(begin: value as EdgeInsetsGeometry)) as EdgeInsetsGeometryTween?;
_decoration = visitor(_decoration, widget.decoration, (dynamic value) => DecorationTween(begin: value as Decoration)) as DecorationTween?;
_foregroundDecoration = visitor(_foregroundDecoration, widget.foregroundDecoration, (dynamic value) => DecorationTween(begin: value as Decoration)) as DecorationTween?;
_constraints = visitor(_constraints, widget.constraints, (dynamic value) => BoxConstraintsTween(begin: value as BoxConstraints)) as BoxConstraintsTween?;
_margin = visitor(_margin, widget.margin, (dynamic value) => EdgeInsetsGeometryTween(begin: value as EdgeInsetsGeometry)) as EdgeInsetsGeometryTween?;
_transform = visitor(_transform, widget.transform, (dynamic value) => Matrix4Tween(begin: value as Matrix4)) as Matrix4Tween?;
}
@override
@ -826,7 +826,7 @@ class _AnimatedPaddingState extends AnimatedWidgetBaseState<AnimatedPadding> {
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_padding = visitor(_padding, widget.padding, (dynamic value) => EdgeInsetsGeometryTween(begin: value as EdgeInsetsGeometry)) as EdgeInsetsGeometryTween;
_padding = visitor(_padding, widget.padding, (dynamic value) => EdgeInsetsGeometryTween(begin: value as EdgeInsetsGeometry)) as EdgeInsetsGeometryTween?;
}
@override
@ -972,12 +972,12 @@ class _AnimatedAlignState extends AnimatedWidgetBaseState<AnimatedAlign> {
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_alignment = visitor(_alignment, widget.alignment, (dynamic value) => AlignmentGeometryTween(begin: value as AlignmentGeometry)) as AlignmentGeometryTween;
_alignment = visitor(_alignment, widget.alignment, (dynamic value) => AlignmentGeometryTween(begin: value as AlignmentGeometry)) as AlignmentGeometryTween?;
if(widget.heightFactor != null) {
_heightFactorTween = visitor(_heightFactorTween, widget.heightFactor, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_heightFactorTween = visitor(_heightFactorTween, widget.heightFactor, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
}
if(widget.widthFactor != null) {
_widthFactorTween = visitor(_widthFactorTween, widget.widthFactor, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_widthFactorTween = visitor(_widthFactorTween, widget.widthFactor, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
}
}
@ -1128,12 +1128,12 @@ class _AnimatedPositionedState extends AnimatedWidgetBaseState<AnimatedPositione
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_left = visitor(_left, widget.left, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_top = visitor(_top, widget.top, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_right = visitor(_right, widget.right, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_bottom = visitor(_bottom, widget.bottom, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_width = visitor(_width, widget.width, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_height = visitor(_height, widget.height, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_left = visitor(_left, widget.left, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_top = visitor(_top, widget.top, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_right = visitor(_right, widget.right, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_bottom = visitor(_bottom, widget.bottom, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_width = visitor(_width, widget.width, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_height = visitor(_height, widget.height, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
}
@override
@ -1263,12 +1263,12 @@ class _AnimatedPositionedDirectionalState extends AnimatedWidgetBaseState<Animat
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_start = visitor(_start, widget.start, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_top = visitor(_top, widget.top, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_end = visitor(_end, widget.end, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_bottom = visitor(_bottom, widget.bottom, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_width = visitor(_width, widget.width, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_height = visitor(_height, widget.height, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_start = visitor(_start, widget.start, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_top = visitor(_top, widget.top, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_end = visitor(_end, widget.end, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_bottom = visitor(_bottom, widget.bottom, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_width = visitor(_width, widget.width, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_height = visitor(_height, widget.height, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
}
@override
@ -1409,7 +1409,7 @@ class _AnimatedOpacityState extends ImplicitlyAnimatedWidgetState<AnimatedOpacit
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_opacity = visitor(_opacity, widget.opacity, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_opacity = visitor(_opacity, widget.opacity, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
}
@override
@ -1542,7 +1542,7 @@ class _SliverAnimatedOpacityState extends ImplicitlyAnimatedWidgetState<SliverAn
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_opacity = visitor(_opacity, widget.opacity, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_opacity = visitor(_opacity, widget.opacity, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
}
@override
@ -1671,7 +1671,7 @@ class _AnimatedDefaultTextStyleState extends AnimatedWidgetBaseState<AnimatedDef
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_style = visitor(_style, widget.style, (dynamic value) => TextStyleTween(begin: value as TextStyle)) as TextStyleTween;
_style = visitor(_style, widget.style, (dynamic value) => TextStyleTween(begin: value as TextStyle)) as TextStyleTween?;
}
@override
@ -1798,10 +1798,10 @@ class _AnimatedPhysicalModelState extends AnimatedWidgetBaseState<AnimatedPhysic
@override
void forEachTween(TweenVisitor<dynamic> visitor) {
_borderRadius = visitor(_borderRadius, widget.borderRadius, (dynamic value) => BorderRadiusTween(begin: value as BorderRadius)) as BorderRadiusTween;
_elevation = visitor(_elevation, widget.elevation, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>;
_color = visitor(_color, widget.color, (dynamic value) => ColorTween(begin: value as Color)) as ColorTween;
_shadowColor = visitor(_shadowColor, widget.shadowColor, (dynamic value) => ColorTween(begin: value as Color)) as ColorTween;
_borderRadius = visitor(_borderRadius, widget.borderRadius, (dynamic value) => BorderRadiusTween(begin: value as BorderRadius)) as BorderRadiusTween?;
_elevation = visitor(_elevation, widget.elevation, (dynamic value) => Tween<double>(begin: value as double)) as Tween<double>?;
_color = visitor(_color, widget.color, (dynamic value) => ColorTween(begin: value as Color)) as ColorTween?;
_shadowColor = visitor(_shadowColor, widget.shadowColor, (dynamic value) => ColorTween(begin: value as Color)) as ColorTween?;
}
@override

6
packages/flutter/lib/src/widgets/interactive_viewer.dart
View file

@ -543,7 +543,7 @@ class _InteractiveViewerState extends State<InteractiveViewer> with TickerProvid
assert(!widget.boundaryMargin.top.isNaN);
assert(!widget.boundaryMargin.bottom.isNaN);
final RenderBox childRenderBox = _childKey.currentContext!.findRenderObject() as RenderBox;
final RenderBox childRenderBox = _childKey.currentContext!.findRenderObject()! as RenderBox;
final Size childSize = childRenderBox.size;
final Rect boundaryRect = widget.boundaryMargin.inflateRect(Offset.zero & childSize);
// Boundaries that are partially infinite are not allowed because Matrix4's
@ -559,7 +559,7 @@ class _InteractiveViewerState extends State<InteractiveViewer> with TickerProvid
// The Rect representing the child's parent.
Rect get _viewport {
assert(_parentKey.currentContext != null);
final RenderBox parentRenderBox = _parentKey.currentContext!.findRenderObject() as RenderBox;
final RenderBox parentRenderBox = _parentKey.currentContext!.findRenderObject()! as RenderBox;
return Offset.zero & parentRenderBox.size;
}
@ -910,7 +910,7 @@ class _InteractiveViewerState extends State<InteractiveViewer> with TickerProvid
widget.onInteractionEnd?.call(ScaleEndDetails());
return;
}
final RenderBox childRenderBox = _childKey.currentContext!.findRenderObject() as RenderBox;
final RenderBox childRenderBox = _childKey.currentContext!.findRenderObject()! as RenderBox;
final Size childSize = childRenderBox.size;
final double scaleChange = 1.0 - event.scrollDelta.dy / childSize.height;
if (scaleChange == 0.0) {

4
packages/flutter/lib/src/widgets/list_wheel_scroll_view.dart
View file

@ -730,7 +730,7 @@ class _ListWheelScrollViewState extends State<ListWheelScrollView> {
super.initState();
scrollController = widget.controller ?? FixedExtentScrollController();
if (widget.controller is FixedExtentScrollController) {
final FixedExtentScrollController controller = widget.controller as FixedExtentScrollController;
final FixedExtentScrollController controller = widget.controller! as FixedExtentScrollController;
_lastReportedItemIndex = controller.initialItem;
}
}
@ -907,7 +907,7 @@ class ListWheelElement extends RenderObjectElement implements ListWheelChildMana
void insertRenderObjectChild(RenderObject child, int slot) {
final RenderListWheelViewport renderObject = this.renderObject;
assert(renderObject.debugValidateChild(child));
renderObject.insert(child as RenderBox, after: _childElements[slot - 1]?.renderObject as RenderBox);
renderObject.insert(child as RenderBox, after: _childElements[slot - 1]?.renderObject as RenderBox?);
assert(renderObject == this.renderObject);
}

2
packages/flutter/lib/src/widgets/navigator.dart
View file

@ -3423,7 +3423,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin {
}
return true;
}());
route = widget.onUnknownRoute!(settings) as Route<T>;
route = widget.onUnknownRoute!(settings) as Route<T>?;
assert(() {
if (route == null) {
throw FlutterError.fromParts(<DiagnosticsNode>[

4
packages/flutter/lib/src/widgets/overflow_bar.dart
View file

@ -466,7 +466,7 @@ class _RenderOverflowBar extends RenderBox
RenderBox? nextChild() => overflowDirection == VerticalDirection.down ? childAfter(child!) : childBefore(child!);
double y = 0;
while (child != null) {
final _OverflowBarParentData childParentData = child.parentData as _OverflowBarParentData;
final _OverflowBarParentData childParentData = child.parentData! as _OverflowBarParentData;
double x = 0;
switch (overflowAlignment) {
case OverflowBarAlignment.start:
@ -491,7 +491,7 @@ class _RenderOverflowBar extends RenderBox
RenderBox? nextChild() => rtl ? childBefore(child!) : childAfter(child!);
double x = 0;
while (child != null) {
final _OverflowBarParentData childParentData = child.parentData as _OverflowBarParentData;
final _OverflowBarParentData childParentData = child.parentData! as _OverflowBarParentData;
childParentData.offset = Offset(x, (maxChildHeight - child.size.height) / 2);
x += child.size.width + spacing;
child = nextChild();

14
packages/flutter/lib/src/widgets/overlay.dart
View file

@ -630,7 +630,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
}
RenderBox? child = super.firstChild;
for (int toSkip = skipCount; toSkip > 0; toSkip--) {
final StackParentData childParentData = child!.parentData as StackParentData;
final StackParentData childParentData = child!.parentData! as StackParentData;
child = childParentData.nextSibling;
assert(child != null);
}
@ -668,7 +668,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
RenderBox? child = _firstOnstageChild;
while (child != null) {
assert(!child.debugNeedsLayout);
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
double? candidate = child.getDistanceToActualBaseline(baseline);
if (candidate != null) {
candidate += childParentData.offset.dy;
@ -708,7 +708,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
RenderBox? child = _firstOnstageChild;
while (child != null) {
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
if (!childParentData.isPositioned) {
child.layout(nonPositionedConstraints, parentUsesSize: true);
@ -727,7 +727,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
RenderBox? child = _lastOnstageChild;
for (int i = 0; i < _onstageChildCount; i++) {
assert(child != null);
final StackParentData childParentData = child!.parentData as StackParentData;
final StackParentData childParentData = child!.parentData! as StackParentData;
final bool isHit = result.addWithPaintOffset(
offset: childParentData.offset,
position: position,
@ -747,7 +747,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
void paintStack(PaintingContext context, Offset offset) {
RenderBox? child = _firstOnstageChild;
while (child != null) {
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
context.paintChild(child, childParentData.offset + offset);
child = childParentData.nextSibling;
}
@ -767,7 +767,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
RenderBox? child = _firstOnstageChild;
while (child != null) {
visitor(child);
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
child = childParentData.nextSibling;
}
}
@ -812,7 +812,7 @@ class _RenderTheatre extends RenderBox with ContainerRenderObjectMixin<RenderBox
);
}
final StackParentData childParentData = child.parentData as StackParentData;
final StackParentData childParentData = child.parentData! as StackParentData;
child = childParentData.nextSibling;
count += 1;
}

2
packages/flutter/lib/src/widgets/overscroll_indicator.dart
View file

@ -289,7 +289,7 @@ class _GlowingOverscrollIndicatorState extends State<GlowingOverscrollIndicator>
assert(notification.overscroll != 0.0);
if (notification.dragDetails != null) {
assert(notification.dragDetails!.globalPosition != null);
final RenderBox renderer = notification.context!.findRenderObject() as RenderBox;
final RenderBox renderer = notification.context!.findRenderObject()! as RenderBox;
assert(renderer != null);
assert(renderer.hasSize);
final Size size = renderer.size;

2
packages/flutter/lib/src/widgets/restoration_properties.dart
View file

@ -273,7 +273,7 @@ abstract class RestorableListenable<T extends Listenable> extends RestorableProp
/// [RestorationMixin.registerForRestoration].
T get value {
assert(isRegistered);
return _value as T;
return _value!;
}
T? _value;

2
packages/flutter/lib/src/widgets/scrollable.dart
View file

@ -549,7 +549,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
return;
_shouldIgnorePointer = value;
if (_ignorePointerKey.currentContext != null) {
final RenderIgnorePointer renderBox = _ignorePointerKey.currentContext!.findRenderObject() as RenderIgnorePointer;
final RenderIgnorePointer renderBox = _ignorePointerKey.currentContext!.findRenderObject()! as RenderIgnorePointer;
renderBox.ignoring = _shouldIgnorePointer;
}
}

12
packages/flutter/lib/src/widgets/sliver.dart
View file

@ -1077,14 +1077,14 @@ class SliverMultiBoxAdaptorElement extends RenderObjectElement implements Render
final Element? newChild = updateChild(newChildren[index], _build(index), index);
if (newChild != null) {
_childElements[index] = newChild;
final SliverMultiBoxAdaptorParentData parentData = newChild.renderObject!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData parentData = newChild.renderObject!.parentData! as SliverMultiBoxAdaptorParentData;
if (index == 0) {
parentData.layoutOffset = 0.0;
} else if (indexToLayoutOffset.containsKey(index)) {
parentData.layoutOffset = indexToLayoutOffset[index];
}
if (!parentData.keptAlive)
_currentBeforeChild = newChild.renderObject as RenderBox;
_currentBeforeChild = newChild.renderObject as RenderBox?;
} else {
_childElements.remove(index);
}
@ -1313,7 +1313,7 @@ class SliverMultiBoxAdaptorElement extends RenderObjectElement implements Render
@override
void didAdoptChild(RenderBox child) {
assert(_currentlyUpdatingChildIndex != null);
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
childParentData.index = _currentlyUpdatingChildIndex;
}
@ -1331,7 +1331,7 @@ class SliverMultiBoxAdaptorElement extends RenderObjectElement implements Render
assert(renderObject.debugValidateChild(child));
renderObject.insert(child as RenderBox, after: _currentBeforeChild);
assert(() {
final SliverMultiBoxAdaptorParentData childParentData = child.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData childParentData = child.parentData! as SliverMultiBoxAdaptorParentData;
assert(slot == childParentData.index);
return true;
}());
@ -1361,7 +1361,7 @@ class SliverMultiBoxAdaptorElement extends RenderObjectElement implements Render
@override
void debugVisitOnstageChildren(ElementVisitor visitor) {
_childElements.values.cast<Element>().where((Element child) {
final SliverMultiBoxAdaptorParentData parentData = child.renderObject!.parentData as SliverMultiBoxAdaptorParentData;
final SliverMultiBoxAdaptorParentData parentData = child.renderObject!.parentData! as SliverMultiBoxAdaptorParentData;
double itemExtent;
switch (renderObject.constraints.axis) {
case Axis.horizontal:
@ -1639,7 +1639,7 @@ class KeepAlive extends ParentDataWidget<KeepAliveParentDataMixin> {
@override
void applyParentData(RenderObject renderObject) {
assert(renderObject.parentData is KeepAliveParentDataMixin);
final KeepAliveParentDataMixin parentData = renderObject.parentData as KeepAliveParentDataMixin;
final KeepAliveParentDataMixin parentData = renderObject.parentData! as KeepAliveParentDataMixin;
if (parentData.keepAlive != keepAlive) {
parentData.keepAlive = keepAlive;
final AbstractNode? targetParent = renderObject.parent;

6
packages/flutter/lib/src/widgets/table.dart
View file

@ -313,7 +313,7 @@ class _TableElement extends RenderObjectElement {
@override
void removeRenderObjectChild(RenderObject child, IndexedSlot<Element>? slot) {
final TableCellParentData childParentData = child.parentData as TableCellParentData;
final TableCellParentData childParentData = child.parentData! as TableCellParentData;
renderObject.setChild(childParentData.x!, childParentData.y!, null);
}
@ -363,7 +363,7 @@ class _TableElement extends RenderObjectElement {
_children.isNotEmpty ? _children[0].children.length : 0,
_children.expand<RenderBox>((_TableElementRow row) {
return row.children.map<RenderBox>((Element child) {
final RenderBox box = child.renderObject as RenderBox;
final RenderBox box = child.renderObject! as RenderBox;
return box;
});
}).toList(),
@ -405,7 +405,7 @@ class TableCell extends ParentDataWidget<TableCellParentData> {
@override
void applyParentData(RenderObject renderObject) {
final TableCellParentData parentData = renderObject.parentData as TableCellParentData;
final TableCellParentData parentData = renderObject.parentData! as TableCellParentData;
if (parentData.verticalAlignment != verticalAlignment) {
parentData.verticalAlignment = verticalAlignment;
final AbstractNode? targetParent = renderObject.parent;

2
packages/flutter/lib/src/widgets/unique_widget.dart
View file

@ -34,7 +34,7 @@ abstract class UniqueWidget<T extends State<StatefulWidget>> extends StatefulWid
///
/// Might be null if the widget is not currently in the tree.
T? get currentState {
final GlobalKey<T> globalKey = key as GlobalKey<T>;
final GlobalKey<T> globalKey = key! as GlobalKey<T>;
return globalKey.currentState;
}
}

6
packages/flutter/lib/src/widgets/viewport.dart
View file

@ -234,9 +234,9 @@ class _ViewportElement extends MultiChildRenderObjectElement {
if (widget.center != null) {
renderObject.center = children.singleWhere(
(Element element) => element.widget.key == widget.center
).renderObject as RenderSliver;
).renderObject as RenderSliver?;
} else if (children.isNotEmpty) {
renderObject.center = children.first.renderObject as RenderSliver;
renderObject.center = children.first.renderObject as RenderSliver?;
} else {
renderObject.center = null;
}
@ -245,7 +245,7 @@ class _ViewportElement extends MultiChildRenderObjectElement {
@override
void debugVisitOnstageChildren(ElementVisitor visitor) {
children.where((Element e) {
final RenderSliver renderSliver = e.renderObject as RenderSliver;
final RenderSliver renderSliver = e.renderObject! as RenderSliver;
return renderSliver.geometry!.visible;
}).forEach(visitor);
}

20
packages/flutter/lib/src/widgets/widget_inspector.dart
View file

@ -544,7 +544,7 @@ class _ScreenshotPaintingContext extends PaintingContext {
}) {
RenderObject repaintBoundary = renderObject;
while (repaintBoundary != null && !repaintBoundary.isRepaintBoundary) {
repaintBoundary = repaintBoundary.parent as RenderObject;
repaintBoundary = repaintBoundary.parent! as RenderObject;
}
assert(repaintBoundary != null);
final _ScreenshotData data = _ScreenshotData(target: renderObject);
@ -560,7 +560,7 @@ class _ScreenshotPaintingContext extends PaintingContext {
// want to capture debugPaint information as well.
data.containerLayer.append(_ProxyLayer(repaintBoundary.debugLayer!));
data.foundTarget = true;
final OffsetLayer offsetLayer = repaintBoundary.debugLayer as OffsetLayer;
final OffsetLayer offsetLayer = repaintBoundary.debugLayer! as OffsetLayer;
data.screenshotOffset = offsetLayer.offset;
} else {
// Repaint everything under the repaint boundary.
@ -1357,7 +1357,7 @@ mixin WidgetInspectorService {
if (object == selection.current) {
return false;
}
selection.current = object as RenderObject;
selection.current = object! as RenderObject;
developer.inspect(selection.current);
}
if (selectionChangedCallback != null) {
@ -2191,7 +2191,7 @@ class _WidgetInspectorState extends State<WidgetInspector>
if (diagnostics.style == DiagnosticsTreeStyle.offstage ||
diagnostics.value is! RenderObject)
continue;
final RenderObject child = diagnostics.value as RenderObject;
final RenderObject child = diagnostics.value! as RenderObject;
final Rect? paintClip = object.describeApproximatePaintClip(child);
if (paintClip != null && !paintClip.contains(localPosition))
continue;
@ -2245,7 +2245,7 @@ class _WidgetInspectorState extends State<WidgetInspector>
if (!isSelectMode)
return;
final RenderIgnorePointer ignorePointer = _ignorePointerKey.currentContext!.findRenderObject() as RenderIgnorePointer;
final RenderIgnorePointer ignorePointer = _ignorePointerKey.currentContext!.findRenderObject()! as RenderIgnorePointer;
final RenderObject userRender = ignorePointer.child!;
final List<RenderObject> selected = hitTest(position, userRender);
@ -2455,7 +2455,7 @@ class _RenderInspectorOverlay extends RenderBox {
context.addLayer(_InspectorOverlayLayer(
overlayRect: Rect.fromLTWH(offset.dx, offset.dy, size.width, size.height),
selection: selection,
rootRenderObject: parent is RenderObject ? parent as RenderObject : null,
rootRenderObject: parent is RenderObject ? parent! as RenderObject : null,
));
}
}
@ -2665,8 +2665,8 @@ class _InspectorOverlayLayer extends Layer {
) {
canvas.save();
final double maxWidth = size.width - 2 * (_kScreenEdgeMargin + _kTooltipPadding);
final TextSpan textSpan = _textPainter?.text as TextSpan;
if (_textPainter == null || textSpan.text != message || _textPainterMaxWidth != maxWidth) {
final TextSpan? textSpan = _textPainter?.text as TextSpan?;
if (_textPainter == null || textSpan!.text != message || _textPainterMaxWidth != maxWidth) {
_textPainterMaxWidth = maxWidth;
_textPainter = TextPainter()
..maxLines = _kMaxTooltipLines
@ -2737,7 +2737,7 @@ class _InspectorOverlayLayer extends Layer {
&& current.lastChild is _RenderInspectorOverlay) {
return rootRenderObject == current;
}
current = current.parent as RenderObject;
current = current.parent as RenderObject?;
}
return false;
}
@ -2850,7 +2850,7 @@ Iterable<DiagnosticsNode> transformDebugCreator(Iterable<DiagnosticsNode> proper
Iterable<DiagnosticsNode>? _parseDiagnosticsNode(DiagnosticsNode node) {
if (!_isDebugCreator(node))
return null;
final DebugCreator debugCreator = node.value as DebugCreator;
final DebugCreator debugCreator = node.value! as DebugCreator;
final Element element = debugCreator.element;
return _describeRelevantUserCode(element);
}

1
packages/flutter_test/lib/src/binding.dart
View file

@ -1466,7 +1466,6 @@ class LiveTestWidgetsFlutterBinding extends TestWidgetsFlutterBinding {
@override
void initRenderView() {
assert(renderView == null);
renderView = _LiveTestRenderView(
configuration: createViewConfiguration(),
onNeedPaint: _handleViewNeedsPaint,