ComplementOperation.ceylon
"A set complement expression.
Defined via [[Set.complement]]. Left-associative.
Examples:
receivers~blocked
primes ~ HashSet { 2 }"
see (`class ComplementAssignmentOperation`)
shared class ComplementOperation(leftOperand, rightOperand)
extends SetOperation() {
"The “this” set, from which elements for the result set are taken."
shared actual UnioningExpression leftOperand;
"The “other” set, the elements of which are not present in the result set."
shared actual IntersectingExpression rightOperand;
shared actual [UnioningExpression, IntersectingExpression] children = [leftOperand, rightOperand];
operator = "~";
shared actual Result transform<out Result>(Transformer<Result> transformer)
=> transformer.transformComplementOperation(this);
shared actual void visit(Visitor visitor)
=> visitor.visitComplementOperation(this);
shared actual Boolean equals(Object that) {
if (is ComplementOperation that) {
return leftOperand == that.leftOperand && rightOperand == that.rightOperand;
} else {
return false;
}
}
shared actual Integer hash
=> 31 * (leftOperand.hash + 31 * rightOperand.hash);
shared ComplementOperation copy(UnioningExpression leftOperand = this.leftOperand, IntersectingExpression rightOperand = this.rightOperand) {
value ret = ComplementOperation(leftOperand, rightOperand);
copyExtraInfoTo(ret);
return ret;
}
}