FieldDefSettingsCommand(FieldNode fieldNode, FieldDefOptions options) {
this.fieldNode = fieldNode;
newOptions = options;
origOptions = new FieldDefOptions(fieldNode.FieldDef);
origParentNode = (DocumentTreeNodeData)fieldNode.TreeNode.Parent.Data;
origParentChildIndex = origParentNode.TreeNode.Children.IndexOf(fieldNode.TreeNode);
Debug.Assert(origParentChildIndex >= 0);
if (origParentChildIndex < 0)
throw new InvalidOperationException();
nameChanged = origOptions.Name != newOptions.Name;
if (nameChanged)
memberRefInfos = RefFinder.FindMemberRefsToThisModule(fieldNode.GetModule()).Where(a => RefFinder.FieldEqualityComparerInstance.Equals(a, fieldNode.FieldDef)).Select(a => new MemberRefInfo(a)).ToArray();
}
CreateFieldDefCommand(TypeNode ownerNode, FieldDefOptions options) {
this.ownerNode = ownerNode;
fieldNode = ownerNode.Create(options.CreateFieldDef(ownerNode.TypeDef.Module));
}
public void Restore(FieldNode[] nodes) {
Debug.Assert(infos != null);
if (infos == null)
throw new InvalidOperationException();
Debug.Assert(infos.Length == nodes.Length);
if (infos.Length != nodes.Length)
throw new InvalidOperationException();
for (int i = infos.Length - 1; i >= 0; i--) {
var node = nodes[i];
var info = infos[i];
info.OwnerType.Fields.Insert(info.FieldIndex, node.FieldDef);
}
infos = null;
}
DeleteFieldDefCommand(FieldNode[] fieldNodes) {
nodes = new DeletableNodes<FieldNode>(fieldNodes);
}
public void Delete(FieldNode[] nodes) {
Debug.Assert(infos == null);
if (infos != null)
throw new InvalidOperationException();
infos = new ModelInfo[nodes.Length];
for (int i = 0; i < infos.Length; i++) {
var node = nodes[i];
var info = new ModelInfo(node.FieldDef);
infos[i] = info;
info.OwnerType.Fields.RemoveAt(info.FieldIndex);
}
}
