codeUnitAtVisitor method Null safety
- int index,
- Accumulator offset
protected">@protected
Performs the check at each InlineSpan for if the index falls within the range
of the span and returns the corresponding code unit. Returns null otherwise.
The offset parameter tracks the current index offset in the text buffer formed
if the contents of the InlineSpan tree were concatenated together starting
from the root InlineSpan.
This method should not be directly called. Use codeUnitAt instead.
Implementation
@protected
int? codeUnitAtVisitor(int index, Accumulator offset);