span property
Implementation
@override
FileSpan get span {
var out = arrobaToken!.span!.expand(nameToken!.span!);
if (colonToken != null) {
out = out.expand(colonToken!.span!).expand(value!.span!);
} else if (lParenToken != null) {
out = out
.expand(lParenToken!.span!)
.expand(argument!.span)
.expand(rParenToken!.span!);
}
return out;
}