void preRemoveChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
if (property.isChildProperty()) {
NodeRewriteEvent event = getNodeEvent(node, property);
event.setNewValue(null);
} else if (property.isChildListProperty()) {
ListRewriteEvent event = getListEvent(node, property);
int i = event.getIndex(child, ListRewriteEvent.NEW);
NodeRewriteEvent nodeEvent = (NodeRewriteEvent) event.getChildren()[i];
if (nodeEvent.getOriginalValue() == null) {
event.revertChange(nodeEvent);
} else {
nodeEvent.setNewValue(null);
}
}
}
void preReplaceChildEvent(
ASTNode node, ASTNode child, ASTNode newChild, StructuralPropertyDescriptor property) {
if (property.isChildProperty()) {
NodeRewriteEvent event = getNodeEvent(node, property);
event.setNewValue(newChild);
if (newChild != null) {
markAsMoveOrCopyTarget(node, newChild);
}
} else if (property.isChildListProperty()) {
ListRewriteEvent event = getListEvent(node, property);
int i = event.getIndex(child, ListRewriteEvent.NEW);
NodeRewriteEvent nodeEvent = (NodeRewriteEvent) event.getChildren()[i];
nodeEvent.setNewValue(newChild);
if (newChild != null) {
markAsMoveOrCopyTarget(node, newChild);
}
}
}
void postAddChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
if (property.isChildListProperty()) {
ListRewriteEvent event = getListEvent(node, property);
List list = (List) node.getStructuralProperty(property);
int i = list.indexOf(child);
int s = list.size();
int index;
if (i + 1 < s) {
ASTNode nextNode = (ASTNode) list.get(i + 1);
index = event.getIndex(nextNode, ListRewriteEvent.NEW);
} else {
index = -1;
}
event.insert(child, index);
if (child != null) {
markAsMoveOrCopyTarget(node, child);
}
}
}