assembleSemanticsNode method Null safety
- SemanticsNode node,
- SemanticsConfiguration config,
- Iterable<
SemanticsNode> children
Assemble the SemanticsNode for this RenderObject.
If describeSemanticsConfiguration sets
SemanticsConfiguration.isSemanticBoundary to true, this method is called
with the node
created for this RenderObject, the config
to be
applied to that node and the children
SemanticsNodes that descendants
of this RenderObject have generated.
By default, the method will annotate node
with config
and add the
children
to it.
Subclasses can override this method to add additional SemanticsNodes to the tree. If new SemanticsNodes are instantiated in this method they must be disposed in clearSemantics.
Implementation
void assembleSemanticsNode(
SemanticsNode node,
SemanticsConfiguration config,
Iterable<SemanticsNode> children,
) {
assert(node == _semantics);
// TODO(a14n): remove the following cast by updating type of parameter in either updateWith or assembleSemanticsNode
node.updateWith(config: config, childrenInInversePaintOrder: children as List<SemanticsNode>);
}