Dictionary <IntPtr, MethodDescription> RegisterMethods (Type type) {
// Caller must hold the obj_lock.
Dictionary <IntPtr, MethodDescription> methods = new Dictionary <IntPtr, MethodDescription> (Runtime.IntPtrEqualityComparer);
foreach (PropertyInfo pinfo in type.GetProperties (BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static)) {
ExportAttribute ea = (ExportAttribute) Attribute.GetCustomAttribute (pinfo, typeof (ExportAttribute));
if (ea == null)
continue;
MethodInfo g = pinfo.GetGetMethod (true);
if (g != null) {
IntPtr selector = Selector.GetHandle (ea.ToGetter (pinfo).Selector);
#if DEBUG_POPULATE
Console.WriteLine ("[GETTER] Registering {0}[0x{1:x}|{2}] on {3} -> ({4})", ea.Selector, (int) selector, Method.Signature (g), type, pinfo);
#endif
methods [selector] = new MethodDescription (g, ea.ArgumentSemantic);
}
MethodInfo s = pinfo.GetSetMethod (true);
if (s != null) {
IntPtr selector = Selector.GetHandle (ea.ToSetter (pinfo).Selector);
#if DEBUG_POPULATE
Console.WriteLine ("[SETTER] Registering {0}[0x{1:x}|{2}] on {3} -> ({4})", ea.Selector, (int) selector, Method.Signature (s), type, pinfo);
#endif
methods [selector] = new MethodDescription (s, ea.ArgumentSemantic);
}
}
var method_interface_map = SharedDynamic.PrepareInterfaceMethodMapping (type);
foreach (MethodInfo minfo in type.GetMethods (BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static)) {
ExportAttribute ea = (ExportAttribute) Attribute.GetCustomAttribute (minfo.GetBaseDefinition (), typeof (ExportAttribute));
if (ea == null)
ea = GetMappedExportAttribute (method_interface_map, minfo);
if (ea == null)
continue;
IntPtr selector = Selector.GetHandle (ea.Selector ?? minfo.Name);
MethodDescription md;
if (!methods.TryGetValue (selector, out md)) {
#if DEBUG_POPULATE
Console.WriteLine ("[METHOD] Registering {0}[0x{1:x}|{2}] from {3} -> ({4} on {5})", ea.Selector, (int) selector, Method.Signature (minfo), type, minfo, minfo.DeclaringType);
#endif
methods.Add (selector, new MethodDescription (minfo, ea.ArgumentSemantic));
continue;
}
//
// More than one method can exist for hidden methods. Choose one closest to
// the caller type
//
if (minfo.DeclaringType.IsSubclassOf (md.method.DeclaringType)) {
#if DEBUG_POPULATE
Console.WriteLine ("[METHOD] Re-registering {0}[0x{1:x}|{2}] from {3} -> ({4} on {5})", ea.Selector, (int) selector, Method.Signature (minfo), type, minfo, minfo.DeclaringType);
#endif
methods [selector] = new MethodDescription (minfo, ea.ArgumentSemantic);
}
}
bool default_ctor_found = false;
foreach (ConstructorInfo cinfo in type.GetConstructors (BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static)) {
if (!default_ctor_found && !cinfo.IsStatic && cinfo.GetParameters ().Length == 0) {
default_ctor_found = true;
methods [Selector.GetHandle ("init")] = new MethodDescription (cinfo, ArgumentSemantic.Assign);
}
ExportAttribute ea = (ExportAttribute) Attribute.GetCustomAttribute (cinfo, typeof (ExportAttribute));
if (ea == null)
continue;
if (ea.Selector == null)
throw new Exception ("Constructor's must have a Export attribute with the selector specified");
IntPtr selector = Selector.GetHandle (ea.Selector);
#if DEBUG_POPULATE
Console.WriteLine ("[CTOR] Registering {0}[0x{1:x}|{2}] on {3} -> ({4})", ea.Selector, (int) selector, Method.Signature (cinfo), type, cinfo);
#endif
methods [selector] = new MethodDescription (cinfo, ea.ArgumentSemantic);
}
method_map [type] = methods;
return methods;
}
public void RegisterMethod (MethodInfo minfo, ExportAttribute ea, Type type, IntPtr handle, bool update_map) {
IntPtr reg_handle = IntPtr.Zero;
IntPtr tramp = IntPtr.Zero;
IntPtr sel = Selector.GetHandle (ea.Selector ?? minfo.Name);
string signature = Method.Signature (minfo);
Type return_type = minfo.ReturnType;
reg_handle = minfo.IsStatic ? Class.object_getClass (handle) : handle;
if (return_type.IsValueType && !return_type.IsEnum && return_type.Assembly != typeof (object).Assembly && (Runtime.Arch == Arch.DEVICE || Marshal.SizeOf (return_type) > 8)) {
if (Runtime.Arch == Arch.SIMULATOR) {
if (TypeContainsDouble (return_type))
tramp = minfo.IsStatic ? Method.X86_DoubleABI_StaticStretTrampoline : Method.X86_DoubleABI_StretTrampoline;
else
tramp = minfo.IsStatic ? Method.StaticStretTrampoline : Method.StretTrampoline;
} else {
tramp = minfo.IsStatic ? Method.StaticStretTrampoline : Method.StretTrampoline;
}
} else if (return_type.IsValueType && !return_type.IsEnum && return_type.Assembly != typeof (object).Assembly && Runtime.Arch == Arch.SIMULATOR && Marshal.SizeOf (return_type) > 4) {
// for instance CGSize...
tramp = minfo.IsStatic ? Method.StaticLongTrampoline : Method.LongTrampoline;
} else {
switch (signature [0]) {
case 'Q':
case 'q':
tramp = minfo.IsStatic ? Method.StaticLongTrampoline : Method.LongTrampoline;
break;
case 'f':
tramp = minfo.IsStatic ? Method.StaticSingleTrampoline : Method.SingleTrampoline;
break;
case 'd':
tramp = minfo.IsStatic ? Method.StaticDoubleTrampoline : Method.DoubleTrampoline;
break;
default:
tramp = minfo.IsStatic ? Method.StaticTrampoline : Method.Trampoline;
break;
}
}
#if DEBUG_REGISTER
Console.WriteLine ("[METHOD] Registering {0}[0x{1:x}|{2}] on {3} -> ({4}) tramp: 0x{5}", ea.Selector, (int) sel, Method.Signature (minfo), type, minfo, tramp.ToString ("x"));
#endif
Class.class_addMethod (reg_handle, sel, tramp, Method.Signature (minfo));
if (update_map) {
Dictionary<IntPtr, MethodDescription> methods;
lock (lock_obj) {
if (!method_map.TryGetValue (type, out methods)) {
methods = new Dictionary<IntPtr, MethodDescription> (Runtime.IntPtrEqualityComparer);
method_map.Add (type, methods);
}
methods[sel] = new MethodDescription (minfo, ea.ArgumentSemantic);
}
}
}
unsafe IntPtr Register (Type type, string name, bool is_wrapper) {
IntPtr parent = IntPtr.Zero;
IntPtr handle = IntPtr.Zero;
lock (lock_obj) {
handle = Class.objc_getClass (name);
if (handle != IntPtr.Zero) {
if (!type_map.ContainsKey (handle)) {
type_map [handle] = type;
}
return handle;
}
/*FIXME pick a more suitable exception type */
/*FIXME try to guess the name of the missing library - quite trivial for monotouch.dll*/
if (is_wrapper) {
if (Runtime.Arch == Arch.DEVICE) {
// types decorated with [Model] attribute are not registered (see registrar.cs and regression from #769)
// a missing [Model] attribute will cause this error on devices (e.g. bug #4864)
if (!Attribute.IsDefined (type, typeof (ModelAttribute), false))
throw new Exception (string.Format ("Wrapper type '{0}' is missing its native ObjectiveC class '{1}'.", type.FullName, name));
} else {
/*On simulator this is a common issue since we eagerly register all types. This is an issue with unlinked
monotouch.dll since we don't link all frameworks most of the time.
*/
return IntPtr.Zero;
}
}
Dictionary <IntPtr, MethodDescription> methods = new Dictionary <IntPtr, MethodDescription> (Runtime.IntPtrEqualityComparer);
Type parent_type = type.BaseType;
string parent_name = null;
while (Attribute.IsDefined (parent_type, typeof (ModelAttribute), false))
parent_type = parent_type.BaseType;
RegisterAttribute parent_attr = (RegisterAttribute) Attribute.GetCustomAttribute (parent_type, typeof (RegisterAttribute), false);
parent_name = parent_attr == null ? parent_type.FullName : parent_attr.Name ?? parent_type.FullName;
parent = Class.objc_getClass (parent_name);
if (parent == IntPtr.Zero && parent_type.Assembly != NSObject.MonoTouchAssembly) {
bool parent_is_wrapper = parent_attr == null ? false : parent_attr.IsWrapper;
// Its possible as we scan that we might be derived from a type that isn't reigstered yet.
Register (parent_type, parent_name, parent_is_wrapper);
parent = Class.objc_getClass (parent_name);
}
if (parent == IntPtr.Zero) {
// This spams mtouch, we need a way to differentiate from mtouch's (ab)use
// Console.WriteLine ("CRITICAL WARNING: Falling back to NSObject for type {0} reported as {1}", type, parent_type);
parent = Class.objc_getClass ("NSObject");
}
handle = Class.objc_allocateClassPair (parent, name, IntPtr.Zero);
Class.class_addIvar (handle, "__monoObjectGCHandle", (IntPtr) Marshal.SizeOf (typeof (Int32)), (byte) 4, "i");
foreach (PropertyInfo prop in type.GetProperties (BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static)) {
ConnectAttribute cattr = (ConnectAttribute) Attribute.GetCustomAttribute (prop, typeof (ConnectAttribute));
if (cattr != null) {
string ivar_name = cattr.Name ?? prop.Name;
Class.class_addIvar (handle, ivar_name, (IntPtr) Marshal.SizeOf (typeof (IntPtr)), (byte) Math.Log (Marshal.SizeOf (typeof (IntPtr)), 2), "@");
}
var exportAtt = (ExportAttribute) Attribute.GetCustomAttribute (prop, typeof (ExportAttribute));
if (exportAtt != null) {
var m = prop.GetGetMethod (true);
if (m != null) {
var ea = exportAtt.ToGetter (prop);
RegisterMethod (m, ea, type, handle, false);
var sel = Selector.GetHandle (ea.Selector);
methods [sel] = new MethodDescription (m, ea.ArgumentSemantic);
}
m = prop.GetSetMethod (true);
if (m != null) {
var ea = exportAtt.ToSetter (prop);
RegisterMethod (m, ea, type, handle, false);
var sel = Selector.GetHandle (ea.Selector);
methods [sel] = new MethodDescription (m, ea.ArgumentSemantic);
}
// http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtPropertyIntrospection.html
int count = 0;
var props = new Class.objc_attribute_prop [3];
props [count++] = new Class.objc_attribute_prop { name = "T", value = TypeConverter.ToNative (prop.PropertyType) };
switch (exportAtt.ArgumentSemantic) {
case ArgumentSemantic.Copy:
props [count++] = new Class.objc_attribute_prop { name = "C", value = "" };
break;
case ArgumentSemantic.Retain:
props [count++] = new Class.objc_attribute_prop { name = "&", value = "" };
break;
}
props [count++] = new Class.objc_attribute_prop { name = "V", value = exportAtt.Selector };
Class.class_addProperty (handle, exportAtt.Selector, props, count);
#if DEBUG_REGISTER
Console.WriteLine ("[PROPERTY] Registering {0} of type {2} ({3}) on {1}", exportAtt.Selector, type, prop.PropertyType, TypeConverter.ToNative (prop.PropertyType));
#endif
}
}
Class.class_addMethod (handle, Selector.GetHandle (Selector.Release), Method.ReleaseTrampoline, "v@:");
Class.class_addMethod (handle, Selector.GetHandle (Selector.Retain), Method.RetainTrampoline, "@@:");
Class.class_addMethod (handle, Selector.GetHandle ("xamarinGetGCHandle"), Method.GetGCHandleTrampoline, "i@:");
Class.class_addMethod (handle, Selector.GetHandle ("xamarinSetGCHandle:"), Method.SetGCHandleTrampoline, "v@:i");
var method_interface_map = SharedDynamic.PrepareInterfaceMethodMapping (type);
foreach (MethodInfo minfo in type.GetMethods (BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static)) {
ExportAttribute ea = (ExportAttribute) Attribute.GetCustomAttribute (minfo.GetBaseDefinition (), typeof (ExportAttribute));
if (ea == null)
ea = GetMappedExportAttribute (method_interface_map, minfo);
if (ea == null)
continue;
if (minfo.IsGenericMethod || minfo.IsGenericMethodDefinition) {
Console.WriteLine ("The registrar found an exported generic method: '{0}.{1}'. Exporting generic methods is not supported.", minfo.DeclaringType.FullName, minfo.Name);
continue;
}
bool is_conforms_to_protocol;
bool is_model = false;
is_conforms_to_protocol = minfo.DeclaringType.Assembly == NSObject.MonoTouchAssembly && minfo.DeclaringType.Name == "NSObject" && minfo.Name == "ConformsToProtocol";
if (!is_conforms_to_protocol)
is_model = minfo.IsVirtual && ((minfo.DeclaringType != type && minfo.DeclaringType.Assembly == NSObject.MonoTouchAssembly) || (Attribute.IsDefined (minfo.DeclaringType, typeof (ModelAttribute), false)));
if (is_model)
continue;
RegisterMethod (minfo, ea, type, handle, false);
var sel = Selector.GetHandle (ea.Selector ?? minfo.Name);
methods [sel] = new MethodDescription (minfo, ea.ArgumentSemantic);
}
bool default_ctor_found = false;
foreach (ConstructorInfo cinfo in type.GetConstructors (BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static)) {
if (!default_ctor_found && !cinfo.IsStatic && cinfo.GetParameters ().Length == 0) {
#if DEBUG_REGISTER
Console.WriteLine ("[CTOR] Registering {0}[0x{1:x}|{2}] on {3} -> ({4})", "init", (int) Selector.Init, Method.Signature (cinfo), type, cinfo);
#endif
default_ctor_found = true;
Class.class_addMethod (handle, Selector.GetHandle ("init"), Method.ConstructorTrampoline, Method.Signature (cinfo));
methods [Selector.GetHandle ("init")] = new MethodDescription (cinfo, ArgumentSemantic.Assign);
}
ExportAttribute ea = (ExportAttribute) Attribute.GetCustomAttribute (cinfo, typeof (ExportAttribute));
if (ea == null)
continue;
IntPtr sel = Selector.GetHandle (ea.Selector);
Class.class_addMethod (handle, sel, Method.ConstructorTrampoline, Method.Signature (cinfo));
#if DEBUG_REGISTER
Console.WriteLine ("[CTOR] Registering {0}[0x{1:x}|{2}] on {3} -> ({4})", ea.Selector, (int) sel, Method.Signature (cinfo), type, cinfo);
#endif
methods [sel] = new MethodDescription (cinfo, ea.ArgumentSemantic);
}
Class.objc_registerClassPair (handle);
type_map [handle] = type;
method_map [type] = methods;
AddCustomType (type);
return handle;
}
}