final

RenderEditable

editable

RenderEditable

textDirection:

TextDirection

ltr

offset:

ViewportOffset

zero

(),

textSelectionDelegate:

FakeEditableTextState

(),

startHandleLayerLink:

LayerLink

(),

endHandleLayerLink:

LayerLink

(),

);

final

PipelineOwner

owner

PipelineOwner

onNeedVisualUpdate:

()

{});

editable

attach

owner

);

// This throws an assertion error because