@Override
protected Node copy(Node parent) {
NodeVariableDefinition node = new NodeVariableDefinition(parent);
node.id = this.id;
Node n = (Node) getNodeValue();
if (n != null) {
node.value = n.copy(parent);
}
node.value = this.value;
return node;
}
@Override
public String getValue() {
if (isUndefined()) {
LOGGER.error("trying to access a non defined variable");
return null;
}
if (!isVar()) {
return value.getValue();
}
LOGGER.trace("We found a reference");
String varName = value.getValue();
NodeVariableDefinition element = getVariableByName(varName);
if (element == null) {
LOGGER.error("Var not found");
return null;
}
if (element.value.getValue().equals(varName)) {
LOGGER.error("Found a circular reference");
}
return element.getValue();
}
/**
* two variables are equals if they have the same id and type
*
* @param other
* @return true if both variables are the same
*/
public boolean equals(NodeVariableDefinition other) {
return other.id.equals(this.id) && other.getParent() == getParent();
}