private static void AddPropertyInitializeInterception(Builder builder, __PropertyInterceptionInfo propertyInterceptionInfo, PropertyBuilderInfo member, Field propertyField, Method actionObjectCtor, Method propertySetter, Dictionary <string, Field> interceptorFields)
{
var declaringType = member.Property.OriginType;
var syncRoot = new __ISyncRoot();
var legalInitInterceptors = member.InterceptorInfos.Where(x => x.InterfaceInitializer != null).ToArray();
var relevantCtors = member.Property.IsStatic ? new Method[] { declaringType.StaticConstructor } : declaringType.GetRelevantConstructors().Where(x => x.Name != ".cctor");
foreach (var ctor in relevantCtors)
{
ctor.NewCode()
.Context(x =>
{
for (int i = 0; i < legalInitInterceptors.Length; i++)
{
var item = legalInitInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Assign(field).NewObj(item.Attribute);
if (item.HasSyncRootInterface)
{
x.Load(field).As(__ISyncRoot.Type.Import()).Call(syncRoot.SyncRoot, member.SyncRoot);
}
ImplementAssignMethodAttribute(builder, legalInitInterceptors[i].AssignMethodAttributeInfos, field, item.Attribute.Attribute.Type, x);
}
x.Assign(propertyField)
.NewObj(propertyInterceptionInfo.Ctor,
member.Property.Getter,
member.Property.Setter,
member.Property.Name,
member.Property.ReturnType,
Crumb.This,
member.Property.ReturnType.IsArray || member.Property.ReturnType.Implements(typeof(IEnumerable)) ? member.Property.ReturnType.ChildType : null,
propertySetter == null ? null : x.NewCode().NewObj(actionObjectCtor, propertySetter));
for (int i = 0; i < legalInitInterceptors.Length; i++)
{
var item = legalInitInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(item.InterfaceInitializer.ToBuilderType)
.Call(item.InterfaceInitializer.OnInitialize, propertyField, member.Property.BackingField);
}
})
.Insert(InsertionPosition.Beginning);
}
}
private static void AddPropertySetterInterception(Builder builder, __PropertyInterceptionInfo propertyInterceptionInfo, PropertyBuilderInfo member, Field propertyField, Method actionObjectCtor, Method propertySetter, Dictionary <string, Field> interceptorFields)
{
var syncRoot = new __ISyncRoot(builder);
var legalSetterInterceptors = member.InterceptorInfos.Where(x => x.InterfaceSetter != null).ToArray();
member.Property.Setter
.NewCode()
.Context(x =>
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).IsNull().Then(y =>
{
y.Assign(field).NewObj(item.Attribute);
if (item.HasSyncRootInterface)
{
y.Load(field).As(syncRoot.Type.Import()).Call(syncRoot.SyncRoot, member.SyncRoot);
}
});
item.Attribute.Remove();
}
x.Load(propertyField).IsNull().Then(y =>
y.Assign(propertyField)
.NewObj(propertyInterceptionInfo.Ctor,
member.Property.Getter,
member.Property.Setter,
member.Property.Name,
member.Property.ReturnType,
y.This,
member.Property.ReturnType.IsArray || member.Property.ReturnType.Implements(typeof(IEnumerable)) ? member.Property.ReturnType.ChildType : null,
y.NewCode().NewObj(actionObjectCtor, propertySetter)));
})
.Try(x =>
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.Type).Call(item.InterfaceSetter.OnSet, propertyField, member.Property.BackingField, member.Property.Setter.NewCode().GetParameter(0));
x.IsFalse().Then(y => y.Assign(member.Property.BackingField).Set(member.Property.Setter.NewCode().GetParameter(0)));
}
})
.Catch(typeof(Exception), x =>
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.Type).Call(legalSetterInterceptors[i].InterfaceSetter.OnException, x.Exception);
}
x.Rethrow();
})
.Finally(x =>
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.Type).Call(legalSetterInterceptors[i].InterfaceSetter.OnExit);
}
})
.EndTry()
.Return()
.Replace();
}
private void InterceptProperties(Builder builder, IEnumerable <BuilderType> attributes)
{
if (!attributes.Any())
{
return;
}
var stopwatch = Stopwatch.StartNew();
var iPropertyGetterInterceptor = new __IPropertyGetterInterceptor(builder);
var iPropertySetterInterceptor = new __IPropertySetterInterceptor(builder);
var propertyInterceptionInfo = new __PropertyInterceptionInfo(builder);
var properties = builder
.FindPropertiesByAttributes(attributes)
.GroupBy(x => x.Property)
.Select(x => new PropertyBuilderInfo(x.Key, x.Select(y => new PropertyBuilderInfoItem(y, y.Property,
y.Attribute.Type.Implements(iPropertyGetterInterceptor.Type.Fullname) ? iPropertyGetterInterceptor : null,
y.Attribute.Type.Implements(iPropertySetterInterceptor.Type.Fullname) ? iPropertySetterInterceptor : null))))
.ToArray();
foreach (var member in properties)
{
this.LogInfo($"Implementing interceptors in property {member.Property}");
if (!member.Property.IsAutoProperty)
{
this.LogError($"{member.Property.Name}: The current version of the property interceptor only supports auto-properties.");
continue;
}
var propertyField = member.Property.CreateField(propertyInterceptionInfo.Type, $"<{member.Property.Name}>p__propertyInfo");
var actionObjectCtor = builder.Import(typeof(Action <object>).GetConstructor(new Type[] { typeof(object), typeof(IntPtr) }));
var propertySetter = member.Property.DeclaringType.CreateMethod(member.Property.Modifiers.GetPrivate(), $"<{member.Property.Name}>m__setterMethod", builder.GetType(typeof(object)));
CreatePropertySetterDelegate(builder, member, propertySetter);
if (member.RequiresSyncRootField)
{
foreach (var ctors in member.Property.DeclaringType.GetRelevantConstructors())
{
ctors.NewCode().Assign(member.SyncRoot).NewObj(builder.GetType(typeof(object)).Import().ParameterlessContructor).Insert(InsertionPosition.Beginning);
}
}
#region Getter implementation
var indexer = 0;
var interceptorFields = member.InterceptorInfos.ToDictionary(x => x.Attribute.Identification,
x => member.Property.DeclaringType.CreateField(x.Property.Modifiers.GetPrivate(), x.Attribute.Attribute.Type,
$"<{x.Property.Name}>_attrib{indexer++}_{x.Attribute.Identification}"));
if (member.HasGetterInterception)
{
AddPropertyGetterInterception(builder, propertyInterceptionInfo, member, propertyField, actionObjectCtor, propertySetter, interceptorFields);
}
#endregion Getter implementation
#region Setter implementation
if (member.HasSetterInterception)
{
AddPropertySetterInterception(builder, propertyInterceptionInfo, member, propertyField, actionObjectCtor, propertySetter, interceptorFields);
}
#endregion Setter implementation
// Also remove the compilergenerated attribute
member.Property.Getter?.CustomAttributes.Remove(typeof(CompilerGeneratedAttribute));
member.Property.Setter?.CustomAttributes.Remove(typeof(CompilerGeneratedAttribute));
}
stopwatch.Stop();
this.LogInfo($"Implementing property interceptors took {stopwatch.Elapsed.TotalMilliseconds}ms");
}
private static void AddPropertySetterInterception(Builder builder, __PropertyInterceptionInfo propertyInterceptionInfo, PropertyBuilderInfo member, Field propertyField, Method actionObjectCtor, Method propertySetter, Dictionary <string, Field> interceptorFields)
{
var syncRoot = new __ISyncRoot();
var legalSetterInterceptors = member.InterceptorInfos.Where(x => x.InterfaceSetter != null).ToArray();
member.Property.Setter
.NewCode()
.Context(x =>
{
if (member.HasInitializer)
{
return;
}
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).IsNull().Then(y =>
{
y.Assign(field).NewObj(item.Attribute);
if (item.HasSyncRootInterface)
{
y.Load(field).As(syncRoot.ToBuilderType.Import()).Call(syncRoot.SyncRoot, member.SyncRoot);
}
ImplementAssignMethodAttribute(builder, legalSetterInterceptors[i].AssignMethodAttributeInfos, field, y, false);
});
item.Attribute.Remove();
}
x.Load(propertyField).IsNull().Then(y =>
y.Assign(propertyField)
.NewObj(propertyInterceptionInfo.Ctor,
member.Property.Getter,
member.Property.Setter,
member.Property.Name,
member.Property.ReturnType,
Crumb.This,
member.Property.ReturnType.IsArray || member.Property.ReturnType.Implements(typeof(IEnumerable)) ? member.Property.ReturnType.ChildType : null,
propertySetter == null ? null : y.NewCode().NewObj(actionObjectCtor, propertySetter)));
})
.Try(x =>
{
if (member.Property.BackingField == null)
{
var oldvalue = member.Property.Getter == null ? null : x.CreateVariable(member.Property.ReturnType);
if (oldvalue != null)
{
var getter = member.Property.Getter.Copy();
x.Call(getter.IsStatic ? null : Crumb.This, getter).StoreLocal(oldvalue);
}
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.ToBuilderType).Call(item.InterfaceSetter.OnSet, propertyField, oldvalue, Crumb.GetParameter(0));
x.IsFalse().Then(y => y.OriginalBodyNewMethod());
}
}
else
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.ToBuilderType).Call(item.InterfaceSetter.OnSet, propertyField, member.Property.BackingField, Crumb.GetParameter(0));
x.IsFalse().Then(y => y.OriginalBody());
}
}
})
.Catch(typeof(Exception), x =>
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.ToBuilderType).Call(legalSetterInterceptors[i].InterfaceSetter.OnException, x.Exception);
}
x.Rethrow();
})
.Finally(x =>
{
for (int i = 0; i < legalSetterInterceptors.Length; i++)
{
var item = legalSetterInterceptors[i];
var field = interceptorFields[item.Attribute.Identification];
x.Load(field).As(legalSetterInterceptors[i].InterfaceSetter.ToBuilderType).Call(legalSetterInterceptors[i].InterfaceSetter.OnExit);
}
})
.EndTry()
.Return()
.Replace();
}
private void InterceptProperties(Builder builder, IEnumerable <BuilderType> attributes)
{
if (!attributes.Any())
{
return;
}
var stopwatch = Stopwatch.StartNew();
var iPropertyInterceptorInitialize = new __IPropertyInterceptorInitialize(builder);
var iPropertyGetterInterceptor = new __IPropertyGetterInterceptor(builder);
var iPropertySetterInterceptor = new __IPropertySetterInterceptor(builder);
var propertyInterceptionInfo = new __PropertyInterceptionInfo(builder);
var properties = builder
.FindPropertiesByAttributes(attributes)
.GroupBy(x => x.Property)
.Select(x => new PropertyBuilderInfo(x.Key, x.Select(y => new PropertyBuilderInfoItem(y, y.Property,
y.Attribute.Type.Implements(iPropertyGetterInterceptor.Type.Fullname) ? iPropertyGetterInterceptor : null,
y.Attribute.Type.Implements(iPropertySetterInterceptor.Type.Fullname) ? iPropertySetterInterceptor : null,
y.Attribute.Type.Implements(iPropertyInterceptorInitialize.Type.Fullname) ? iPropertyInterceptorInitialize : null))))
.ToArray();
foreach (var member in properties)
{
this.Log($"Implementing interceptors in property {member.Property}");
if (member.Property.BackingField == null)
{
this.Log(LogTypes.Error, member.Property, "Unable to detect the backing field of property: " + member.Property);
continue;
}
var propertyField = member.Property.CreateField(propertyInterceptionInfo.Type, $"<{member.Property.Name}>p__propertyInfo");
var actionObjectCtor = builder.Import(typeof(Action <object>).GetConstructor(new Type[] { typeof(object), typeof(IntPtr) }));
var propertySetter = member.Property.DeclaringType.CreateMethod(member.Property.Modifiers.GetPrivate(), $"<{member.Property.Name}>m__setterMethod", builder.GetType(typeof(object)));
CreatePropertySetterDelegate(builder, member, propertySetter);
var indexer = 0;
var interceptorFields = member.InterceptorInfos.ToDictionary(x => x.Attribute.Identification,
x => member.Property.DeclaringType.CreateField(x.Property.Modifiers.GetPrivate(), x.Attribute.Attribute.Type,
$"<{x.Property.Name}>_attrib{indexer++}_{x.Attribute.Identification}"));
if (member.HasInitializer)
{
AddPropertyInitializeInterception(builder, propertyInterceptionInfo, member, propertyField, actionObjectCtor, propertySetter, interceptorFields);
}
if (member.HasGetterInterception)
{
AddPropertyGetterInterception(builder, propertyInterceptionInfo, member, propertyField, actionObjectCtor, propertySetter, interceptorFields);
}
if (member.HasSetterInterception)
{
AddPropertySetterInterception(builder, propertyInterceptionInfo, member, propertyField, actionObjectCtor, propertySetter, interceptorFields);
}
// Do this at the end to ensure that syncroot init is always on the top
if (member.RequiresSyncRootField)
{
if (member.SyncRoot.IsStatic)
{
member.Property.DeclaringType.CreateStaticConstructor().NewCode()
.Assign(member.SyncRoot).NewObj(builder.GetType(typeof(object)).Import().ParameterlessContructor)
.Insert(InsertionPosition.Beginning);
}
else
{
foreach (var ctors in member.Property.DeclaringType.GetRelevantConstructors().Where(x => x.Name == ".ctor"))
{
ctors.NewCode().Assign(member.SyncRoot).NewObj(builder.GetType(typeof(object)).Import().ParameterlessContructor).Insert(InsertionPosition.Beginning);
}
}
}
// Also remove the compilergenerated attribute
member.Property.Getter?.CustomAttributes.Remove(typeof(CompilerGeneratedAttribute));
member.Property.Setter?.CustomAttributes.Remove(typeof(CompilerGeneratedAttribute));
}
stopwatch.Stop();
this.Log($"Implementing property interceptors took {stopwatch.Elapsed.TotalMilliseconds}ms");
}