private MethodDefinition EnsureOnPropertyChangedMethod()
{
var type = _catelType.TypeDefinition;
MethodDefinition methodDefinition = null;
var possibleMethods = type.Methods.Where(definition => definition.Name == "OnPropertyChanged" && definition.HasParameters).ToList();
foreach (var possibleMethod in possibleMethods)
{
if (string.Equals(possibleMethod.Parameters[0].ParameterType.FullName, _catelType.AdvancedPropertyChangedEventArgsType.FullName))
{
methodDefinition = possibleMethod;
break;
}
}
var baseOnPropertyChangedInvoker = _catelType.BaseOnPropertyChangedInvoker;
if (methodDefinition == null)
{
var voidType = _msCoreReferenceFinder.GetCoreTypeReference("Void");
methodDefinition = new MethodDefinition("OnPropertyChanged", MethodAttributes.Family | MethodAttributes.HideBySig | MethodAttributes.Virtual, type.Module.Import(voidType));
methodDefinition.Parameters.Add(new ParameterDefinition("e", ParameterAttributes.None, _catelType.AdvancedPropertyChangedEventArgsType));
var body = methodDefinition.Body;
body.SimplifyMacros();
body.Instructions.Add(Instruction.Create(OpCodes.Nop));
body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
body.Instructions.Add(Instruction.Create(OpCodes.Call, baseOnPropertyChangedInvoker));
body.Instructions.Add(Instruction.Create(OpCodes.Nop));
body.Instructions.Add(Instruction.Create(OpCodes.Ret));
body.OptimizeMacros();
type.Methods.Add(methodDefinition);
methodDefinition.MarkAsCompilerGenerated(_msCoreReferenceFinder);
}
else
{
// Note: need to replace call to base, otherwise it might skip a call to a just generated base member
var body = methodDefinition.Body;
var hasReplaced = false;
body.SimplifyMacros();
foreach (var instruction in body.Instructions)
{
if (instruction.OpCode == OpCodes.Call)
{
var methodReference = instruction.Operand as MethodReference;
if ((methodReference != null) && string.Equals(methodReference.Name, baseOnPropertyChangedInvoker.Name))
{
instruction.Operand = baseOnPropertyChangedInvoker;
hasReplaced = true;
}
}
}
body.OptimizeMacros();
if (!methodDefinition.IsMarkedAsGeneratedCode())
{
// Don't support this, see CTL-569
return null;
}
}
return methodDefinition;
}
private void AddGetXmlSchemaMethod(CatelType catelType)
{
var catelTypeDefinition = catelType.TypeDefinition;
var methodName = GetXmlSchemaMethodName(catelType);
var alreadyHandled = (from method in catelTypeDefinition.Methods
where method.Name == methodName
select method).Any();
if (alreadyHandled)
{
return;
}
var getTypeFromHandle = catelTypeDefinition.Module.GetMethod("GetTypeFromHandle");
var importedGetTypeFromHandle = catelTypeDefinition.Module.Import(getTypeFromHandle);
var xmlSchemaManager = (TypeDefinition)catelTypeDefinition.Module.FindType("Catel.Core", "Catel.Runtime.Serialization.Xml.XmlSchemaManager");
if (xmlSchemaManager == null)
{
// Support versions before 3.8
xmlSchemaManager = (TypeDefinition)catelTypeDefinition.Module.FindType("Catel.Core", "Catel.Runtime.Serialization.XmlSchemaManager");
}
var getXmlSchemaMethodOnXmlSchemaManager = catelTypeDefinition.Module.Import(xmlSchemaManager.Methods.First(x => x.IsStatic && x.Name == "GetXmlSchema"));
//public static XmlQualifiedName GetXmlSchema(XmlSchemaSet schemas)
//{
// Type callingType = typeof(int);
// return XmlSchemaManager.GetXmlSchema(callingType, schemas);
//}
var getXmlSchemaMethod = new MethodDefinition(methodName, MethodAttributes.Public | MethodAttributes.Static, catelTypeDefinition.Module.Import(_msCoreReferenceFinder.XmlQualifiedName));
getXmlSchemaMethod.Parameters.Add(new ParameterDefinition("xmlSchemaSet", ParameterAttributes.None, catelTypeDefinition.Module.Import(_msCoreReferenceFinder.XmlSchemaSet)));
var ldloc1Instruction = Instruction.Create(OpCodes.Ldloc_1);
var instructions = getXmlSchemaMethod.Body.Instructions;
instructions.Insert(0, Instruction.Create(OpCodes.Nop),
Instruction.Create(OpCodes.Ldtoken, catelTypeDefinition),
Instruction.Create(OpCodes.Call, importedGetTypeFromHandle),
Instruction.Create(OpCodes.Stloc_0),
Instruction.Create(OpCodes.Ldloc_0),
Instruction.Create(OpCodes.Ldarg_0),
Instruction.Create(OpCodes.Call, getXmlSchemaMethodOnXmlSchemaManager),
Instruction.Create(OpCodes.Stloc_1),
Instruction.Create(OpCodes.Br_S, ldloc1Instruction),
ldloc1Instruction,
Instruction.Create(OpCodes.Ret));
getXmlSchemaMethod.Body.InitLocals = true;
getXmlSchemaMethod.Body.Variables.Add(new VariableDefinition("callingType", catelTypeDefinition.Module.Import(catelTypeDefinition.Module.FindType("mscorlib", "System.Type"))));
getXmlSchemaMethod.Body.Variables.Add(new VariableDefinition(catelTypeDefinition.Module.Import(_msCoreReferenceFinder.XmlQualifiedName)));
catelTypeDefinition.Methods.Add(getXmlSchemaMethod);
getXmlSchemaMethod.MarkAsCompilerGenerated(_msCoreReferenceFinder);
}
private int AddGetValueCall(PropertyDefinition property, FieldReference fieldReference)
{
FodyEnvironment.LogDebug($"\t\t\t{property.Name} - adding GetValue call");
var genericGetValue = new GenericInstanceMethod(_catelType.GetValueInvoker);
foreach (var genericParameter in _catelType.GetValueInvoker.GenericParameters)
{
genericGetValue.GenericParameters.Add(genericParameter);
}
genericGetValue.GenericArguments.Add(property.PropertyType.Import());
if (property.GetMethod == null)
{
var getMethod = new MethodDefinition($"get_{property.Name}", MethodAttributes.Public, property.PropertyType.Import());
property.DeclaringType.Methods.Add(getMethod);
getMethod.MarkAsCompilerGenerated(_msCoreReferenceFinder);
property.GetMethod = getMethod;
}
var body = property.GetMethod.Body;
body.SimplifyMacros();
var instructions = body.Instructions;
instructions.Clear();
var finalIndex = instructions.Insert(0,
Instruction.Create(OpCodes.Nop),
Instruction.Create(OpCodes.Ldarg_0),
Instruction.Create(OpCodes.Ldsfld, fieldReference),
Instruction.Create(OpCodes.Call, genericGetValue),
Instruction.Create(OpCodes.Ret));
body.OptimizeMacros();
return finalIndex;
}
private int AddSetValueCall(PropertyDefinition property, FieldReference fieldReference, bool isReadOnly)
{
FodyEnvironment.LogDebug($"\t\t\t{property.Name} - adding SetValue call");
//string fieldName = string.Format("{0}Property", property.Name);
//var declaringType = property.DeclaringType;
//var fieldReference = GetField(declaringType, fieldName);
// Writes SetValue(PropertyData propertyName, object value)
if (property.SetMethod == null)
{
var voidType = _msCoreReferenceFinder.GetCoreTypeReference("Void");
var setMethod = new MethodDefinition($"set_{property.Name}", MethodAttributes.Public, property.DeclaringType.Module.Import(voidType));
setMethod.Parameters.Add(new ParameterDefinition(property.PropertyType.Import()));
property.DeclaringType.Methods.Add(setMethod);
setMethod.MarkAsCompilerGenerated(_msCoreReferenceFinder);
property.SetMethod = setMethod;
}
var finalSetMethod = property.SetMethod;
if (isReadOnly)
{
finalSetMethod.IsPrivate = true;
finalSetMethod.IsPublic = false;
}
var body = property.SetMethod.Body;
body.SimplifyMacros();
var instructions = body.Instructions;
instructions.Clear();
var instructionsToAdd = new List<Instruction>();
instructionsToAdd.AddRange(new[]
{
Instruction.Create(OpCodes.Ldarg_0),
Instruction.Create(OpCodes.Ldsfld, fieldReference),
Instruction.Create(OpCodes.Ldarg_1)
});
if (property.PropertyType.IsBoxingRequired(_catelType.SetValueInvoker.Parameters[1].ParameterType))
{
instructionsToAdd.Add(Instruction.Create(OpCodes.Box, property.PropertyType.Import()));
}
instructionsToAdd.Add(Instruction.Create(OpCodes.Call, _catelType.SetValueInvoker));
instructionsToAdd.Add(Instruction.Create(OpCodes.Ret));
var finalIndex = instructions.Insert(0, instructionsToAdd.ToArray());
body.OptimizeMacros();
return finalIndex;
}
private void AddChangeNotificationHandlerField(PropertyDefinition property, CatelTypeProperty propertyData)
{
if (propertyData.ChangeCallbackReference == null)
{
return;
}
FodyEnvironment.LogDebug($"\t\t\t{property.Name} - adding On{property.Name}Changed invocation");
var declaringType = property.DeclaringType;
string fieldName = GetChangeNotificationHandlerFieldName(property);
var handlerType = GetEventHandlerAdvancedPropertyChangedEventArgs(property);
var advancedPropertyChangedEventArgsType = property.Module.FindType("Catel.Core", "Catel.Data.AdvancedPropertyChangedEventArgs");
//.field private static class [mscorlib]System.EventHandler`1<class [Catel.Core]Catel.Data.AdvancedPropertyChangedEventArgs> CS$<>9__CachedAnonymousMethodDelegate1
var field = new FieldDefinition(fieldName, FieldAttributes.Private | FieldAttributes.Static, declaringType.Module.Import(handlerType));
declaringType.Fields.Add(field);
field.MarkAsCompilerGenerated(_msCoreReferenceFinder);
//.method private hidebysig static void <.cctor>b__0(object s, class [Catel.Core]Catel.Data.AdvancedPropertyChangedEventArgs e) cil managed
//{
// .custom instance void [mscorlib]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor()
// .maxstack 8
// L_0000: ldarg.0
// L_0001: castclass Catel.Fody.TestAssembly.ModelBaseTest
// L_0006: callvirt instance void Catel.Fody.TestAssembly.ModelBaseTest::OnLastNameChanged()
// L_000b: nop
// L_000c: ret
//}
var voidType = _msCoreReferenceFinder.GetCoreTypeReference("Void");
var objectType = _msCoreReferenceFinder.GetCoreTypeReference("Object");
string initializationMethodName = GetChangeNotificationHandlerConstructorName(property);
var initializationMethod = new MethodDefinition(initializationMethodName,
MethodAttributes.Private | MethodAttributes.HideBySig | MethodAttributes.Static, declaringType.Module.Import(voidType));
initializationMethod.Parameters.Add(new ParameterDefinition("s", ParameterAttributes.None, declaringType.Module.Import(objectType)));
initializationMethod.Parameters.Add(new ParameterDefinition("e", ParameterAttributes.None, declaringType.Module.Import(advancedPropertyChangedEventArgsType)));
var body = initializationMethod.Body;
body.Instructions.Insert(0,
Instruction.Create(OpCodes.Ldarg_0),
Instruction.Create(OpCodes.Castclass, declaringType.MakeGenericIfRequired()),
Instruction.Create(OpCodes.Callvirt, propertyData.ChangeCallbackReference),
Instruction.Create(OpCodes.Nop),
Instruction.Create(OpCodes.Ret));
declaringType.Methods.Add(initializationMethod);
initializationMethod.MarkAsCompilerGenerated(_msCoreReferenceFinder);
}