public static UndoActionObject FromJson(string json)
{
//
// Here be dragons. Thou art forewarned
//
var serialized = FlaxEngine.Json.JsonSerializer.Deserialize <SerializedUndoActionObject>(json);
UndoActionObject undoActionObject = (UndoActionObject)System.Runtime.Serialization.FormatterServices.GetUninitializedObject(typeof(UndoActionObject));
TargetInstanceField.SetValue(undoActionObject, serialized.TargetInstance);
DataField.SetValue(undoActionObject, serialized.Data);
var memberInfoPaths = new MemberInfoPath[serialized.MemberStacks.Length];
for (int i = 0; i < memberInfoPaths.Length; i++)
{
// Prepare the stack entries
var entries = new MemberInfoPath.Entry[serialized.MemberStacks[i].Length];
for (int j = 0; j < entries.Length; j++)
{
var serializedEntry = serialized.MemberStacks[i][j];
Type type = Type.GetType(serializedEntry.AssemblyQualifiedName);
MemberInfo memberInfo;
if (serializedEntry.MemberInfoType == typeof(MethodInfo))
{
memberInfo = type.GetMethod(serializedEntry.Path);
}
else if (serializedEntry.MemberInfoType == typeof(FieldInfo))
{
memberInfo = type.GetField(serializedEntry.Path);
}
else if (serializedEntry.MemberInfoType == typeof(PropertyInfo))
{
memberInfo = type.GetProperty(serializedEntry.Path);
}
else
{
throw new Exception("Unexpected MemberInfoType: " + serializedEntry.MemberInfoType);
}
entries[j] = new MemberInfoPath.Entry(new ScriptMemberInfo(memberInfo), serializedEntry.Index);
}
// MemberInfoPath is a struct, we have to jump through some hoops to set a private field
object boxedMemberInfoPath = memberInfoPaths[i];
StackField.SetValue(boxedMemberInfoPath, entries);
memberInfoPaths[i] = (MemberInfoPath)boxedMemberInfoPath;
}
MembersField.SetValue(undoActionObject, memberInfoPaths);
return(undoActionObject);
}
// ---------[ UTILITY ]---------
/// <summary>Generates the MemberInfoPath data for the given MemberInfo.</summary>
private static List <MemberInfoPath> GenerateMemberInfoPathList(FieldInfo[] fieldInfoArray,
PropertyInfo[] propertyInfoArray,
string[] membersToIgnore,
bool displayEnumerables,
bool displayNested,
string pathPrefix)
{
List <MemberInfoPath> retVal = new List <MemberInfoPath>();
List <MemberInfoPath> nested = new List <MemberInfoPath>();
// process root members
foreach (FieldInfo field in fieldInfoArray)
{
// obsolete check
if (Attribute.IsDefined(field, typeof(ObsoleteAttribute)))
{
continue;
}
// enumerable check
if (!displayEnumerables &&
MemberReferenceDropdownDrawer.IsTypeEnumerable(field.FieldType))
{
continue;
}
// mask check
string fullName = pathPrefix + field.Name;
bool skipMember = false;
for (int i = 0; i < membersToIgnore.Length && !skipMember; ++i)
{
skipMember = (membersToIgnore[i] == fullName);
}
if (skipMember)
{
continue;
}
// add to list
MemberInfoPath mip = new MemberInfoPath()
{
pathPrefix = pathPrefix,
memberType = field.FieldType,
info = field,
};
retVal.Add(mip);
// add nested?
if (displayNested &&
field.FieldType.IsClass &&
field.FieldType != typeof(string))
{
nested.Add(mip);
}
}
// process root members
foreach (PropertyInfo property in propertyInfoArray)
{
// obsolete check
if (Attribute.IsDefined(property, typeof(ObsoleteAttribute)))
{
continue;
}
// enumerable check
if (!displayEnumerables &&
MemberReferenceDropdownDrawer.IsTypeEnumerable(property.PropertyType))
{
continue;
}
// mask check
string fullName = pathPrefix + property.Name;
bool skipMember = false;
for (int i = 0; i < membersToIgnore.Length && !skipMember; ++i)
{
skipMember = (membersToIgnore[i] == fullName);
}
if (skipMember)
{
continue;
}
// add to list
MemberInfoPath mip = new MemberInfoPath()
{
pathPrefix = pathPrefix,
memberType = property.PropertyType,
info = property,
};
retVal.Add(mip);
// add nested?
if (displayNested &&
property.PropertyType.IsClass &&
property.PropertyType != typeof(string))
{
nested.Add(mip);
}
}
// process nested
foreach (MemberInfoPath nestedInfo in nested)
{
string prefix = pathPrefix + nestedInfo.info.Name + ".";
FieldInfo[] nestedFields
= nestedInfo.memberType.GetFields(BindingFlags.Instance | BindingFlags.Public);
PropertyInfo[] nestedProperties
= nestedInfo.memberType.GetProperties(BindingFlags.Instance | BindingFlags.Public);
retVal.AddRange(GenerateMemberInfoPathList(nestedFields,
nestedProperties,
membersToIgnore,
displayEnumerables,
displayNested,
prefix));
}
return(retVal);
}
