private IntPtr CreateProperty(IntPtr outer, PropertyInfo propertyInfo)
{
// Note that HeaderParser.cpp and UObjectGlobals.cpp use "new" instead of NewObject for creating properties
// KismetCompilerMisc.cpp uses NewObject
// The "new" initialization sets the offset and adds the property to the owner which in the case of UStruct
// does the following:
// void UStruct::AddCppProperty(UProperty* Property) { Property->Next = Children; Children = Property; }
USharpPathAttribute pathAttribute = propertyInfo.GetCustomAttribute <USharpPathAttribute>();
if (pathAttribute == null)
{
return(IntPtr.Zero);
}
string root, directory, moduleName, typeName, propertyName;
FPackageName.GetPathInfo(pathAttribute.Path, out root, out directory, out moduleName, out typeName, out propertyName);
if (string.IsNullOrEmpty(propertyName))
{
return(IntPtr.Zero);
}
IntPtr property = CreateProperty(outer, propertyInfo.PropertyType, propertyName, pathAttribute.PropertyType,
pathAttribute.InnerPropertyType1, pathAttribute.InnerPropertyType2);
if (property == IntPtr.Zero)
{
return(IntPtr.Zero);
}
if (FBuild.WithMetaData)
{
IntPtr outermost = Native_UObjectBaseUtility.GetOutermost(property);
IntPtr metadata = outermost == IntPtr.Zero ? IntPtr.Zero : Native_UPackage.GetMetaData(outermost);
if (metadata != IntPtr.Zero)
{
string categoryName = null;
//propertyInfo.GetCustomAttribute
if (string.IsNullOrEmpty(categoryName))
{
categoryName = "Default";
}
SetMetaData(metadata, property, "Category", categoryName);
}
}
return(property);
}
private static void LoadInternal(Assembly thisAssembly, Assembly assembly)
{
if (processedAssemblies.Contains(assembly))
{
return;
}
processedAssemblies.Add(assembly);
bool referencesThisAssembly = false;
if (assembly == thisAssembly)
{
referencesThisAssembly = true;
}
else
{
foreach (AssemblyName assemblyName in assembly.GetReferencedAssemblies())
{
if (assemblyName.FullName == thisAssembly.FullName)
{
referencesThisAssembly = true;
break;
}
}
}
if (!referencesThisAssembly)
{
return;
}
List <Type> types = new List <Type>();
Dictionary <Type, UMetaPathAttribute> nativeTypes = new Dictionary <Type, UMetaPathAttribute>();
Dictionary <Type, USharpPathAttribute> managedTypes = new Dictionary <Type, USharpPathAttribute>();
Type assemblyModuleInfoType = null;
foreach (Type type in assembly.GetTypes())
{
UUnrealTypePathAttribute pathAttribute = type.GetCustomAttribute <UUnrealTypePathAttribute>(false);
if (pathAttribute != null && !string.IsNullOrEmpty(pathAttribute.Path))
{
USharpPathAttribute sharpPathAttribute = pathAttribute as USharpPathAttribute;
if (sharpPathAttribute != null)
{
AllByPath[pathAttribute.Path] = type;
ManagedByPath[pathAttribute.Path] = type;
All[type] = sharpPathAttribute;
Managed[type] = sharpPathAttribute;
types.Add(type);
managedTypes[type] = sharpPathAttribute;
}
else
{
UMetaPathAttribute metaPathAttribute = pathAttribute as UMetaPathAttribute;
if (metaPathAttribute != null)
{
AllByPath[pathAttribute.Path] = type;
NativeByPath[pathAttribute.Path] = type;
All[type] = metaPathAttribute;
Native[type] = metaPathAttribute;
types.Add(type);
nativeTypes[type] = metaPathAttribute;
}
}
}
if (typeof(ISerializedManagedUnrealModuleInfo).IsAssignableFrom(type) &&
type != typeof(ISerializedManagedUnrealModuleInfo))
{
assemblyModuleInfoType = type;
}
}
if (types.Count > 0)
{
Assemblies[assembly] = types;
AssembliesManagedTypes[assembly] = managedTypes;
AssembliesNativeTypes[assembly] = nativeTypes;
if (assemblyModuleInfoType != null)
{
AssemblySerializedModuleInfo[assembly] = assemblyModuleInfoType;
}
}
}
public static ManagedUnrealClass CreateClass(Type type)
{
ManagedUnrealClass existingClass = FindClass(type);
if (existingClass != null)
{
if (!FBuild.WithHotReload)
{
// TODO: Add support for hotreloading C# classes when WITH_HOT_RELOAD isn't available
// - WITH_HOT_RELOAD will be false on shipping, monolithic and server builds
// - Would need to make a copy of FHotReloadClassReinstancer (or just use it directly if
// it doesn't depend on WITH_HOT_RELOAD and gets compiled into builds)
// - Would likely break blueprint classes which depend on any C# classes reinstanced in this way
return(existingClass);
}
existingClass.Clear();
HotReloadClassCount++;
}
if (!type.IsSubclassOf(typeof(UObject)))
{
return(null);
}
USharpPathAttribute pathAttribute = type.GetCustomAttribute <USharpPathAttribute>();
if (pathAttribute == null || string.IsNullOrEmpty(pathAttribute.Path))
{
return(null);
}
IntPtr parentClass = GetStaticClass(type.BaseType);
if (parentClass == IntPtr.Zero)
{
return(null);
}
string root, directory, moduleName, className, memberName;
FPackageName.GetPathInfo(pathAttribute.Path, out root, out directory, out moduleName, out className, out memberName);
string packageName = "/" + root + "/" + directory;
if (string.IsNullOrEmpty(moduleName) || string.IsNullOrEmpty(className))
{
return(null);
}
IntPtr package = NativeReflection.FindObject(Native_UPackage.StaticClass(), IntPtr.Zero, packageName, true);
if (package == IntPtr.Zero)
{
package = NativeReflection.CreatePackage(IntPtr.Zero, packageName);
Native_UPackage.SetPackageFlags(package, EPackageFlags.CompiledIn);
// TODO: Find how to create a proper guid for a package (UHT CodeGenerator.cpp seems to use a crc of generated code)
using (System.Security.Cryptography.SHA256 sha256 = System.Security.Cryptography.SHA256.Create())
{
byte[] hash = sha256.ComputeHash(Encoding.ASCII.GetBytes(packageName));
// Truncate the hash
byte[] buffer = new byte[16];
Buffer.BlockCopy(hash, 0, buffer, 0, buffer.Length);
Native_UPackage.SetGuid(package, new Guid(buffer));
}
}
ManagedUnrealClass managedUnrealClass = null;
if (existingClass != null)
{
managedUnrealClass = existingClass;
}
else
{
managedUnrealClass = new ManagedUnrealClass(type, packageName, className, parentClass);
}
managedUnrealClass.StaticClass = USharpClass.CreateClassPtr(
managedUnrealClass.PackageName,
managedUnrealClass.ClassName,
(uint)Native_UStruct.GetPropertiesSize(managedUnrealClass.ParentClass),
EClassFlags.None,
EClassCastFlags.None,
managedUnrealClass.ConfigName,
managedUnrealClass.ParentClass,
managedUnrealClass.WithinClass,
managedUnrealClass.ClassConstructor,
managedUnrealClass.ClassVTableHelperCtorCaller,
managedUnrealClass.ClassAddReferencedObjects);
Native_UObjectBase.UObjectForceRegistration(managedUnrealClass.StaticClass);
if (existingClass == null)
{
Classes.Add(type, managedUnrealClass);
ClassesByAddress.Add(managedUnrealClass.StaticClass, managedUnrealClass);
}
managedUnrealClass.Initialize();
return(managedUnrealClass);
}