SpanToSubscript.ceylon
"A span-to subscript,
to select a (sub)range from a [[Ranged]] expression
using the [[last index|to]].
Examples:
... text.size - 1
...count"
see (`function Ranged.spanTo`)
shared class SpanToSubscript(to)
extends RangeSubscript() {
"The expression for the last selected index.
See [[Ranged.spanTo.to]]."
shared AddingExpression to;
shared actual [AddingExpression] children = [to];
shared actual Result transform<out Result>(Transformer<Result> transformer)
=> transformer.transformSpanToSubscript(this);
shared actual Boolean equals(Object that) {
if (is SpanToSubscript that) {
return to == that.to;
} else {
return false;
}
}
shared actual Integer hash
=> 31 * to.hash;
shared SpanToSubscript copy(AddingExpression to = this.to) {
value ret = SpanToSubscript(to);
copyExtraInfoTo(ret);
return ret;
}
}