private static objc_class RootClass(objc_class super_class)
{
objc_class root_class = super_class;
while (root_class.super_class != IntPtr.Zero)
{
root_class = (objc_class)Marshal.PtrToStructure(root_class.super_class, typeof(objc_class));
}
return(root_class);
}
public ObjCClass(objc_class native_class, IntPtr native_pointer)
{
this.native_class = native_class;
this.native_pointer = native_pointer;
}
public static ObjCClass FromType(Type type)
{
if (type == null)
{
throw new ArgumentException();
}
if (objc_classes [type] != null)
{
return((ObjCClass)objc_classes [type]);
}
FieldInfo class_name = type.GetField("ObjectiveCName", BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
FieldInfo base_name = type.BaseType.GetField("ObjectiveCName", BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
string cls_name = type.Name;
string super_name = type.BaseType.Name;
if (class_name != null)
{
cls_name = (string)class_name.GetValue(type);
}
RegisterAttribute attr = (RegisterAttribute)Attribute.GetCustomAttribute(type, typeof(RegisterAttribute));
if (attr != null)
{
cls_name = attr.Name;
}
IntPtr this_ptr = ObjCMethods.objc_lookUpClass(cls_name);
if (this_ptr != IntPtr.Zero)
{
return(new ObjCClass((objc_class)Marshal.PtrToStructure(this_ptr, typeof(objc_class)), this_ptr));
}
if (base_name != null)
{
super_name = (string)base_name.GetValue(type.BaseType);
}
if (super_name == "CSObject" || super_name == "Object")
{
super_name = "NSObject";
}
if (cls_name == "CSThread")
{
super_name = "NSThread";
}
IntPtr super_ptr = ObjCMethods.objc_getClass(super_name);
if (super_ptr == IntPtr.Zero)
{
return(null);
}
objc_class super_class = (objc_class)Marshal.PtrToStructure(super_ptr, typeof(objc_class));
objc_class root_class = RootClass(super_class);
objc_class objc_class = new objc_class();
objc_class meta_class = new objc_class();
// setup the meta class
meta_class.isa = root_class.isa;
meta_class.super_class = super_class.isa;
meta_class.instance_size = ((objc_class)Marshal.PtrToStructure(super_class.isa, typeof(objc_class))).instance_size;
meta_class.name = Marshal.StringToHGlobalAnsi(cls_name);
meta_class.info = 2;
meta_class.methodLists = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr)));
Marshal.WriteIntPtr(meta_class.methodLists, (IntPtr)(-1));
IntPtr meta_class_ptr = Marshal.AllocHGlobal(Marshal.SizeOf(objc_class));
Marshal.StructureToPtr(meta_class, meta_class_ptr, true);
// setup the class
objc_class.isa = meta_class_ptr;
objc_class.name = meta_class.name;
objc_class.info = 1;
objc_class.super_class = super_ptr;
objc_class.methodLists = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr)));
Marshal.WriteIntPtr(objc_class.methodLists, (IntPtr)(-1));
// Add the ivars
ArrayList ivars = new ArrayList();
foreach (FieldInfo field in type.GetFields(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
ConnectAttribute cattr = (ConnectAttribute)Attribute.GetCustomAttribute(field, typeof(ConnectAttribute));
if (cattr != null)
{
ivars.Add(field);
}
}
if (ivars.Count > 0)
{
objc_ivar_list ivar_list = new objc_ivar_list();
ivar_list.count = ivars.Count;
IntPtr ivar_list_ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(objc_ivar_list)) + (ivars.Count * Marshal.SizeOf(typeof(objc_method))));
int ivar_offset = super_class.instance_size;
for (int i = 0; i < ivars.Count; i++)
{
ConnectAttribute cattr = (ConnectAttribute)Attribute.GetCustomAttribute((FieldInfo)ivars [i], typeof(ConnectAttribute));
objc_ivar ivar = new objc_ivar();
int ivar_size = cattr.Size;
ivar.ivar_name = Marshal.StringToHGlobalAnsi(cattr.Name != null ? cattr.Name : ((FieldInfo)ivars [i]).Name);
ivar.ivar_type = Marshal.StringToHGlobalAnsi(cattr.Type != null ? cattr.Type : ObjCTypes.FromType(((FieldInfo)ivars [i]).FieldType, out ivar_size));
ivar.ivar_offset = ivar_offset;
ivar_offset += ivar_size;
Marshal.StructureToPtr(ivar, (IntPtr)((long)ivar_list_ptr + Marshal.SizeOf(typeof(objc_ivar_list)) + (i * Marshal.SizeOf(typeof(objc_ivar)))), true);
}
Marshal.StructureToPtr(ivar_list, ivar_list_ptr, false);
objc_class.instance_size = ivar_offset;
objc_class.ivars = ivar_list_ptr;
}
else
{
objc_class.instance_size = super_class.instance_size;
}
// Register the class
IntPtr objc_class_ptr = Marshal.AllocHGlobal(Marshal.SizeOf(objc_class));
Marshal.StructureToPtr(objc_class, objc_class_ptr, true);
ObjCMethods.objc_addClass(objc_class_ptr);
// Add the methods
objc_method_list method_list = new objc_method_list();
ArrayList methods = new ArrayList();
foreach (MethodInfo method in type.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
if (type.Namespace != "Cocoa")
{
ExportAttribute eattr = (ExportAttribute)Attribute.GetCustomAttribute(method, typeof(ExportAttribute));
if (eattr != null)
{
methods.Add(ObjCMethod.FromMethodInfo(method));
}
}
else
{
methods.Add(ObjCMethod.FromMethodInfo(method));
}
}
// FIXME
// foreach (ConstructorInfo constructor in type.GetConstructors (BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance))
// methods.Add (ObjCMethod.FromConstructorInfo (constructor));
method_list.count = methods.Count;
IntPtr method_list_ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(objc_method_list)) + (methods.Count * Marshal.SizeOf(typeof(objc_method))));
Marshal.StructureToPtr(method_list, method_list_ptr, false);
for (int i = 0; i < methods.Count; i++)
{
Marshal.StructureToPtr((objc_method)methods [i], (IntPtr)((long)method_list_ptr + Marshal.SizeOf(typeof(objc_method_list)) + (i * Marshal.SizeOf(typeof(objc_method)))), true);
}
ObjCMethods.class_addMethods(objc_class_ptr, method_list_ptr);
// Add the static methods
method_list = new objc_method_list();
methods = new ArrayList();
foreach (MethodInfo method in type.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static))
{
if (type.Namespace != "Cocoa")
{
ExportAttribute eattr = (ExportAttribute)Attribute.GetCustomAttribute(method, typeof(ExportAttribute));
if (eattr != null)
{
methods.Add(ObjCMethod.FromMethodInfo(method));
}
}
else
{
methods.Add(ObjCMethod.FromMethodInfo(method));
}
}
method_list.count = methods.Count;
IntPtr static_method_list_ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(objc_method_list)) + (methods.Count * Marshal.SizeOf(typeof(objc_method))));
Marshal.StructureToPtr(method_list, static_method_list_ptr, false);
for (int i = 0; i < methods.Count; i++)
{
Marshal.StructureToPtr((objc_method)methods [i], (IntPtr)((long)static_method_list_ptr + Marshal.SizeOf(typeof(objc_method_list)) + (i * Marshal.SizeOf(typeof(objc_method)))), true);
}
ObjCMethods.class_addMethods(meta_class_ptr, static_method_list_ptr);
return(new ObjCClass(objc_class, objc_class_ptr));
}