AddAssignmentOperation.ceylon
"An add assignment operation (`+=`).
Right-associative.
Examples:
index += step
document.cursor.position += insertion.size"
see (`class SumOperation`)
shared class AddAssignmentOperation(target, summand)
extends ArithmeticAssignmentOperation() {
"The target expression and left summand."
shared ThenElseExpression target;
"The right summand."
shared AssigningExpression summand;
"The target expression and left summand."
see (`value target`)
shared actual ThenElseExpression leftOperand = target;
"The right summand."
see (`value summand`)
shared actual AssigningExpression rightOperand = summand;
shared actual [ThenElseExpression, AssigningExpression] children = [leftOperand, rightOperand];
operator = "+=";
shared actual Result transform<out Result>(Transformer<Result> transformer)
=> transformer.transformAddAssignmentOperation(this);
shared actual void visit(Visitor visitor)
=> visitor.visitAddAssignmentOperation(this);
shared actual Boolean equals(Object that) {
if (is AddAssignmentOperation that) {
return leftOperand == that.leftOperand && rightOperand == that.rightOperand;
} else {
return false;
}
}
shared actual Integer hash
=> 31 * (leftOperand.hash + 31 * rightOperand.hash);
shared AddAssignmentOperation copy(ThenElseExpression leftOperand = this.leftOperand, AssigningExpression rightOperand = this.rightOperand) {
value ret = AddAssignmentOperation(leftOperand, rightOperand);
copyExtraInfoTo(ret);
return ret;
}
}