SpanOperation.ceylon
"A spanned range expression.
Defined via [[span]]. No associativity.
Examples:
0..9
monday..friday
first.successor..last.predecessor"
shared class SpanOperation(first, last)
extends BinaryOperation() {
"The first element of the spanned range."
shared AddingExpression first;
"The last element of the spanned range."
shared AddingExpression last;
"The first element of the spanned range."
see (`value first`)
shared actual AddingExpression leftOperand = first;
"The last element of the spanned range."
see (`value last`)
shared actual AddingExpression rightOperand = last;
shared actual [AddingExpression, AddingExpression] children = [leftOperand, rightOperand];
operator = "..";
shared actual Result transform<out Result>(Transformer<Result> transformer)
=> transformer.transformSpanOperation(this);
shared actual Boolean equals(Object that) {
if (is SpanOperation that) {
return leftOperand == that.leftOperand && rightOperand == that.rightOperand;
} else {
return false;
}
}
shared actual Integer hash
=> 31 * (leftOperand.hash + 31 * rightOperand.hash);
shared SpanOperation copy(AddingExpression leftOperand = this.leftOperand, AddingExpression rightOperand = this.rightOperand) {
value ret = SpanOperation(leftOperand, rightOperand);
copyExtraInfoTo(ret);
return ret;
}
}