public AvaloniaAttachedInstanceProperty(XamlAstNamePropertyReference prop,
TransformerConfiguration config,
IXamlType declaringType,
IXamlType type,
IXamlType avaloniaPropertyType,
IXamlType avaloniaObject,
IXamlField field) : base(prop, prop.Name,
declaringType, null)
{
_config = config;
_declaringType = declaringType;
_avaloniaPropertyType = avaloniaPropertyType;
// XamlIl doesn't support generic methods yet
if (_avaloniaPropertyType.GenericArguments?.Count > 0)
{
_avaloniaPropertyType = _avaloniaPropertyType.BaseType;
}
_avaloniaObject = avaloniaObject;
_field = field;
PropertyType = type;
Setters.Add(new SetterMethod(this));
Getter = new GetterMethod(this);
}
public XamlIlAvaloniaProperty(XamlAstClrProperty original, IXamlField field,
AvaloniaXamlIlWellKnownTypes types)
: base(original, original.Name, original.DeclaringType, original.Getter, original.Setters)
{
var assignBinding = original.CustomAttributes.Any(ca => ca.Type.Equals(types.AssignBindingAttribute));
AvaloniaProperty = field;
CustomAttributes = original.CustomAttributes;
if (!assignBinding)
{
Setters.Insert(0, new BindingSetter(types, original.DeclaringType, field));
}
// Styled and attached properties can be set with a BindingPriority when they're
// assigned in a ControlTemplate.
if (field.FieldType.GenericTypeDefinition == types.StyledPropertyT ||
field.FieldType.GenericTypeDefinition == types.AvaloniaAttachedPropertyT)
{
var propertyType = field.FieldType.GenericArguments[0];
Setters.Insert(0, new SetValueWithPrioritySetter(types, original.DeclaringType, field, propertyType));
if (!assignBinding)
{
Setters.Insert(1, new BindingWithPrioritySetter(types, original.DeclaringType, field));
}
}
Setters.Insert(0, new UnsetValueSetter(types, original.DeclaringType, field));
}
public XamlIlAvaloniaPropertyFieldNode(AvaloniaXamlIlWellKnownTypes types,
IXamlLineInfo lineInfo, IXamlField field) : base(lineInfo)
{
_field = field;
AvaloniaPropertyType = XamlIlAvaloniaPropertyHelper.GetAvaloniaPropertyType(field,
types, lineInfo);
}
public static void EmitFieldLiteral(IXamlField field, IXamlILEmitter codeGen)
{
var ftype = field.FieldType.IsEnum ? field.FieldType.GetEnumUnderlyingType() : field.FieldType;
if (ftype.Name == "UInt64" || ftype.Name == "Int64")
{
codeGen.Emit(OpCodes.Ldc_I8,
TypeSystemHelpers.ConvertLiteralToLong(field.GetLiteralValue()));
}
else if (ftype.Name == "Double")
{
codeGen.Emit(OpCodes.Ldc_R8, (double)field.GetLiteralValue());
}
else if (ftype.Name == "Single")
{
codeGen.Emit(OpCodes.Ldc_R4, (float)field.GetLiteralValue());
}
else if (ftype.Name == "String")
{
codeGen.Emit(OpCodes.Ldstr, (string)field.GetLiteralValue());
}
else
{
codeGen.Emit(OpCodes.Ldc_I4,
TypeSystemHelpers.ConvertLiteralToInt(field.GetLiteralValue()));
}
}
public IXamlAstNode Transform(AstTransformationContext context, IXamlAstNode node)
{
if (node is XamlAstClrProperty prop)
{
if (prop.DeclaringType.Assembly == context.GetWinUITypes().WinUIControlsAssembly)
{
IXamlField propertyIndexMaybe = context.GetWinUITypes().XamlPropertyIndex.Fields.FirstOrDefault(f => f.Name == $"{prop.DeclaringType.Name}_{prop.Name}");
if (propertyIndexMaybe != null)
{
prop.Setters.Insert(0, new XamlDirectSetter(context.GetWinUITypes(), prop.Getter.ReturnType, prop.DeclaringType, propertyIndexMaybe));
foreach (var adder in XamlTransformHelpers.FindPossibleAdders(context, prop.Getter.ReturnType))
{
if (adder.Parameters.Count == 1)
{
prop.Setters.Add(new XamlDirectAdderSetter(context.GetWinUITypes(), adder.Parameters[0], prop.DeclaringType, propertyIndexMaybe));
}
}
return(prop);
}
IXamlField eventIndexMaybe = context.GetWinUITypes().XamlEventIndex.Fields.FirstOrDefault(f => f.Name == $"{prop.DeclaringType.Name}_{prop.Name}");
if (eventIndexMaybe != null)
{
prop.Setters.Insert(0, new XamlDirectEventSetter(context.GetWinUITypes(), prop.Setters[0].Parameters[0], prop.DeclaringType, eventIndexMaybe));
return(prop);
}
}
}
return(node);
}
public XamlIlAttacchedPropertyEqualsSelector(XamlIlSelectorNode previous,
IXamlField propertyFiled,
IXamlAstValueNode value)
: base(previous)
{
PropertyFiled = propertyFiled;
Value = value;
}
public AvaloniaPropertyCustomSetter(AvaloniaXamlIlWellKnownTypes types,
IXamlType declaringType,
IXamlField avaloniaProperty)
{
Types = types;
AvaloniaProperty = avaloniaProperty;
TargetType = declaringType;
}
public XamlDirectEventSetter(WellKnownWinUITypes winUITypes,
IXamlType propertyType,
IXamlType targetType,
IXamlField eventIndex)
{
Parameters = new[] { propertyType };
WinUITypes = winUITypes;
TargetType = targetType;
EventIndex = eventIndex;
}
public XamlDirectAdderSetter(WellKnownWinUITypes winUITypes,
IXamlType propertyType,
IXamlType targetType,
IXamlField propertyIndex)
{
Parameters = new[] { propertyType };
WinUITypes = winUITypes;
TargetType = targetType;
PropertyIndex = propertyIndex;
}
public IXamlAstNode Transform(AstTransformationContext context, IXamlAstNode node)
{
if (node is XamlValueWithManipulationNode valWithManip &&
TryGetNewObjectNodeForXamlDirect(valWithManip, out var newObj) &&
newObj.Arguments.Count == 0)
{
if (!(valWithManip.Manipulation is XamlObjectInitializationNode init) ||
!(init.Manipulation is XamlManipulationGroupNode manipGrp))
{
throw new XamlParseException(
"Unable to find the object initialization node inside object creation.", node);
}
IXamlType objType = newObj.Type.GetClrType();
if (objType.Assembly != context.GetWinUITypes().WinUIControlsAssembly)
{
// Only built-in controls have XamlDirect support.
// Remove the XamlDirect setters since XamlDirect isn't worth using once the object
// is created and return.
RemoveXamlDirectSettersFromAssignments(manipGrp);
return(node);
}
IXamlField typeIndex = context.GetWinUITypes().XamlTypeIndex.GetAllFields().FirstOrDefault(fld => fld.Name == objType.Name);
if (typeIndex is null)
{
// We didn't find a matching type index, so we can't use XamlDirect.
// Remove the XamlDirect setters since XamlDirect isn't worth using once the object
// is created and return.
RemoveXamlDirectSettersFromAssignments(manipGrp);
return(node);
}
IXamlAstValueNode constructedObjNode = new XamlDirectNewObjectNode(newObj, context.GetWinUITypes().IXamlDirectObject, typeIndex);
var xamlDirectAssignmentsNode = new XamlManipulationGroupNode(constructedObjNode);
var standardAssignmentsNode = new XamlManipulationGroupNode(constructedObjNode);
ExtractXamlDirectAssignments(manipGrp, xamlDirectAssignmentsNode, standardAssignmentsNode);
if (xamlDirectAssignmentsNode.Children.Count != 0)
{
constructedObjNode = new XamlValueWithManipulationNode(constructedObjNode, constructedObjNode, xamlDirectAssignmentsNode);
}
if (standardAssignmentsNode.Children.Count == 0)
{
node = new XamlObjectFromDirectObjectNode(constructedObjNode, newObj.Type);
}
else
{
valWithManip.Value = new XamlObjectFromDirectObjectNode(constructedObjNode, newObj.Type);
init.Manipulation = standardAssignmentsNode;
}
}
return(node);
public static object GetLiteralFieldConstantValue(IXamlField field)
{
var value = field.GetLiteralValue();
//This code is needed for SRE backend that returns an actual enum instead of just int
if (value.GetType().IsEnum)
{
value = Convert.ChangeType(value, value.GetType().GetEnumUnderlyingType());
}
return(value);
}
public XamlIlAvaloniaProperty(XamlAstClrProperty original, IXamlField field,
AvaloniaXamlIlWellKnownTypes types)
: base(original, original.Name, original.DeclaringType, original.Getter, original.Setters)
{
AvaloniaProperty = field;
CustomAttributes = original.CustomAttributes;
if (!original.CustomAttributes.Any(ca => ca.Type.Equals(types.AssignBindingAttribute)))
{
Setters.Insert(0, new BindingSetter(types, original.DeclaringType, field));
}
Setters.Insert(0, new UnsetValueSetter(types, original.DeclaringType, field));
}
protected AvaloniaPropertyCustomSetter(
AvaloniaXamlIlWellKnownTypes types,
IXamlType declaringType,
IXamlField avaloniaProperty,
bool allowNull)
{
Types = types;
AvaloniaProperty = avaloniaProperty;
TargetType = declaringType;
BinderParameters = new PropertySetterBinderParameters
{
AllowXNull = allowNull,
AllowRuntimeNull = allowNull
};
}
public static IXamlType GetAvaloniaPropertyType(IXamlField field,
AvaloniaXamlIlWellKnownTypes types, IXamlLineInfo lineInfo)
{
var avaloniaPropertyType = field.FieldType;
while (avaloniaPropertyType != null)
{
if (avaloniaPropertyType.GenericTypeDefinition?.Equals(types.AvaloniaPropertyT) == true)
{
return(avaloniaPropertyType.GenericArguments[0]);
}
avaloniaPropertyType = avaloniaPropertyType.BaseType;
}
throw new XamlX.XamlParseException(
$"{field.Name}'s type {field.FieldType} doesn't inherit from AvaloniaProperty<T>, make sure to use typed properties",
lineInfo);
}
public bool Equals(IXamlField other) => ((SreField)other)?.Field.Equals(Field) == true;
public IXamlILEmitter Emit(OpCode code, IXamlField field)
{
Record(code, field);
_inner.Emit(code, field);
return(this);
}
public bool Equals(IXamlField other) => other is CecilField cf && cf.Field == Field;
public static XamlConstantNode GetLiteralFieldConstantNode(IXamlField field, IXamlLineInfo info) => new XamlConstantNode(info, field.FieldType, GetLiteralFieldConstantValue(field));
public XamlIlAvaloniaPropertyPropertyPathElementNode(IXamlField field, IXamlType propertyType)
{
_field = field;
Type = propertyType;
}
private XamlILContextDefinition(IXamlTypeBuilder <IXamlILEmitter> parentBuilder,
IXamlTypeSystem typeSystem, XamlLanguageTypeMappings mappings,
XamlLanguageEmitMappings <IXamlILEmitter, XamlILNodeEmitResult> emitMappings)
{
var so = typeSystem.GetType("System.Object");
var builder = parentBuilder.DefineSubType(so, "Context", true);
builder.DefineGenericParameters(new[]
{
new KeyValuePair <string, XamlGenericParameterConstraint>("TTarget",
new XamlGenericParameterConstraint
{
IsClass = true
})
});
var rootObjectField = builder.DefineField(builder.GenericParameters[0], "RootObject", true, false);
var intermediateRootObjectField = builder.DefineField(so, XamlRuntimeContextDefintion.IntermediateRootObjectFieldName, true, false);
_parentServiceProviderField = builder.DefineField(mappings.ServiceProvider, "_sp", false, false);
if (mappings.InnerServiceProviderFactoryMethod != null)
{
_innerServiceProviderField = builder.DefineField(mappings.ServiceProvider, "_innerSp", false, false);
}
var staticProvidersField = builder.DefineField(typeSystem.GetType("System.Object").MakeArrayType(1),
"_staticProviders", false, false);
var systemType = typeSystem.GetType("System.Type");
var systemUri = typeSystem.GetType("System.Uri");
var systemString = typeSystem.GetType("System.String");
var getServiceInterfaceMethod = mappings.ServiceProvider.FindMethod("GetService", so, false, systemType);
var ownServices = new List <IXamlType>();
var ctorCallbacks = new List <Action <IXamlILEmitter> >();
if (mappings.RootObjectProvider != null)
{
builder.AddInterfaceImplementation(mappings.RootObjectProvider);
var rootGen = ImplementInterfacePropertyGetter(builder, mappings.RootObjectProvider, XamlRuntimeContextDefintion.RootObjectFieldName)
.Generator;
var tryParent = rootGen.DefineLabel();
var fail = rootGen.DefineLabel();
var parentRootProvider = rootGen.DefineLocal(mappings.RootObjectProvider);
rootGen
// if(RootObject!=null) return RootObject;
.LdThisFld(rootObjectField)
.Box(rootObjectField.FieldType)
.Brfalse(tryParent)
.LdThisFld(rootObjectField)
.Box(rootObjectField.FieldType)
.Ret()
// if(_sp == null) goto fail;
.MarkLabel(tryParent)
.LdThisFld(_parentServiceProviderField)
.Brfalse(fail)
// parentProv = (IRootObjectProvider)_sp.GetService(typeof(IRootObjectProvider));
.LdThisFld(_parentServiceProviderField)
.Ldtype(mappings.RootObjectProvider)
.EmitCall(getServiceInterfaceMethod)
.Castclass(mappings.RootObjectProvider)
.Stloc(parentRootProvider)
// if(parentProv == null) goto fail;
.Ldloc(parentRootProvider)
.Brfalse(fail)
// return parentProv.Root;
.Ldloc(parentRootProvider)
.EmitCall(mappings.RootObjectProvider.FindMethod(m => m.Name == "get_RootObject"))
.Ret()
// fail:
.MarkLabel(fail)
.Ldnull()
.Ret();
if (mappings.RootObjectProviderIntermediateRootPropertyName != null)
{
ImplementInterfacePropertyGetter(builder, mappings.RootObjectProvider, mappings.RootObjectProviderIntermediateRootPropertyName)
.Generator
.LdThisFld(intermediateRootObjectField)
.Ret();
}
ownServices.Add(mappings.RootObjectProvider);
}
if (mappings.ParentStackProvider != null)
{
builder.AddInterfaceImplementation(mappings.ParentStackProvider);
var objectListType = typeSystem.GetType("System.Collections.Generic.List`1")
.MakeGenericType(new[] { typeSystem.GetType("System.Object") });
ParentListField = builder.DefineField(objectListType, XamlRuntimeContextDefintion.ParentListFieldName, true, false);
var enumerator = EmitParentEnumerable(typeSystem, parentBuilder, mappings);
CreateCallbacks.Add(enumerator.createCallback);
var parentStackEnumerableField = builder.DefineField(
typeSystem.GetType("System.Collections.Generic.IEnumerable`1").MakeGenericType(new[] { so }),
"_parentStackEnumerable", false, false);
ImplementInterfacePropertyGetter(builder, mappings.ParentStackProvider, "Parents")
.Generator.LdThisFld(parentStackEnumerableField).Ret();
ctorCallbacks.Add(g => g
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Newobj, objectListType.FindConstructor(new List <IXamlType>()))
.Emit(OpCodes.Stfld, ParentListField)
.Emit(OpCodes.Ldarg_0)
.LdThisFld(ParentListField)
.LdThisFld(_parentServiceProviderField)
.Emit(OpCodes.Newobj, enumerator.ctor)
.Emit(OpCodes.Stfld, parentStackEnumerableField));
ownServices.Add(mappings.ParentStackProvider);
}
ownServices.Add(EmitTypeDescriptorContextStub(typeSystem, builder, mappings));
if (mappings.ProvideValueTarget != null)
{
builder.AddInterfaceImplementation(mappings.ProvideValueTarget);
PropertyTargetObject = builder.DefineField(so, XamlRuntimeContextDefintion.ProvideTargetObjectName, true, false);
PropertyTargetProperty = builder.DefineField(so, XamlRuntimeContextDefintion.ProvideTargetPropertyName, true, false);
ImplementInterfacePropertyGetter(builder, mappings.ProvideValueTarget, "TargetObject")
.Generator.LdThisFld(PropertyTargetObject).Ret();
ImplementInterfacePropertyGetter(builder, mappings.ProvideValueTarget, "TargetProperty")
.Generator.LdThisFld(PropertyTargetProperty).Ret();
ownServices.Add(mappings.ProvideValueTarget);
}
IXamlField baseUriField = null;
if (mappings.UriContextProvider != null)
{
baseUriField = builder.DefineField(systemUri, "_baseUri", false, false);
builder.AddInterfaceImplementation(mappings.UriContextProvider);
var getter = builder.DefineMethod(systemUri, new IXamlType[0], "get_BaseUri", true, false, true);
var setter = builder.DefineMethod(typeSystem.GetType("System.Void"), new[] { systemUri },
"set_BaseUri", true, false, true);
getter.Generator
.LdThisFld(baseUriField)
.Ret();
setter.Generator
.Ldarg_0()
.Ldarg(1)
.Stfld(baseUriField)
.Ret();
builder.DefineProperty(systemUri, "BaseUri", setter, getter);
ownServices.Add(mappings.UriContextProvider);
}
builder.AddInterfaceImplementation(mappings.ServiceProvider);
var getServiceMethod = builder.DefineMethod(so,
new[] { systemType },
"GetService", true, false, true);
ownServices = ownServices.Where(s => s != null).ToList();
if (_innerServiceProviderField != null)
{
var next = getServiceMethod.Generator.DefineLabel();
var innerResult = getServiceMethod.Generator.DefineLocal(so);
getServiceMethod.Generator
//if(_inner == null) goto next;
.LdThisFld(_innerServiceProviderField)
.Brfalse(next)
// var innerRes = _inner.GetService(type);
.LdThisFld(_innerServiceProviderField)
.Ldarg(1)
.EmitCall(getServiceInterfaceMethod)
.Stloc(innerResult)
// if(innerRes == null) goto next;
.Ldloc(innerResult)
.Brfalse(next)
// return innerRes
.Ldloc(innerResult)
.Ret()
.MarkLabel(next);
}
var compare = systemType.FindMethod("Equals", typeSystem.GetType("System.Boolean"),
false, systemType);
var isAssignableFrom = systemType.FindMethod("IsAssignableFrom", typeSystem.GetType("System.Boolean"),
false, systemType);
var fromHandle = systemType.Methods.First(m => m.Name == "GetTypeFromHandle");
var getTypeFromObject = so.Methods.First(m => m.Name == "GetType" && m.Parameters.Count == 0);
if (ownServices.Count != 0)
{
for (var c = 0; c < ownServices.Count; c++)
{
var next = getServiceMethod.Generator.DefineLabel();
getServiceMethod.Generator
.Emit(OpCodes.Ldtoken, ownServices[c])
.EmitCall(fromHandle)
.Emit(OpCodes.Ldarg_1)
.Emit(OpCodes.Callvirt, compare)
.Emit(OpCodes.Brfalse, next)
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Ret)
.MarkLabel(next);
}
}
var staticProviderIndex = getServiceMethod.Generator.DefineLocal(typeSystem.GetType("System.Int32"));
var staticProviderNext = getServiceMethod.Generator.DefineLabel();
var staticProviderFailed = getServiceMethod.Generator.DefineLabel();
var staticProviderEnd = getServiceMethod.Generator.DefineLabel();
var staticProviderElement = getServiceMethod.Generator.DefineLocal(so);
getServiceMethod.Generator
//start: if(_staticProviders == null) goto: end
.LdThisFld(staticProvidersField)
.Brfalse(staticProviderEnd)
// var c = 0
.Ldc_I4(0)
.Stloc(staticProviderIndex)
// next:
.MarkLabel(staticProviderNext)
// if(c >= _staticProviders.Length) goto: end
.Ldloc(staticProviderIndex)
.LdThisFld(staticProvidersField)
.Ldlen()
.Bge(staticProviderEnd)
// var obj = _staticProviders[c]
.LdThisFld(staticProvidersField)
.Ldloc(staticProviderIndex)
.Ldelem_ref()
// dup
.Stloc(staticProviderElement)
.Ldarg(1)
.Ldloc(staticProviderElement)
// if(obj.GetType().Equals(arg1)) return obj; else goto failed;
.EmitCall(getTypeFromObject)
.EmitCall(isAssignableFrom)
.Brfalse(staticProviderFailed)
.Ldloc(staticProviderElement)
.Ret()
// failed:
.MarkLabel(staticProviderFailed)
// c++
.Ldloc(staticProviderIndex)
.Ldc_I4(1)
.Add()
.Stloc(staticProviderIndex)
// goto: start
.Br(staticProviderNext)
// end:
.MarkLabel(staticProviderEnd);
var noParentProvider = getServiceMethod.Generator.DefineLabel();
getServiceMethod.Generator
.LdThisFld(_parentServiceProviderField)
.Brfalse(noParentProvider)
.LdThisFld(_parentServiceProviderField)
.Ldarg(1)
.EmitCall(getServiceInterfaceMethod)
.Emit(OpCodes.Ret)
.MarkLabel(noParentProvider)
.Ldnull()
.Ret();
var ctor = builder.DefineConstructor(false,
mappings.ServiceProvider,
staticProvidersField.FieldType,
systemString);
ctor.Generator
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Call, so.Constructors.First())
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Ldarg_1)
.Emit(OpCodes.Stfld, _parentServiceProviderField)
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Ldarg_2)
.Emit(OpCodes.Stfld, staticProvidersField);
if (baseUriField != null)
{
var noUri = ctor.Generator.DefineLabel();
ctor.Generator
.Emit(OpCodes.Ldarg_3)
.Brfalse(noUri)
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Ldarg_3)
.Newobj(systemUri.FindConstructor(new List <IXamlType>
{
typeSystem.GetType("System.String")
}))
.Emit(OpCodes.Stfld, baseUriField)
.MarkLabel(noUri);
}
foreach (var feature in ctorCallbacks)
{
feature(ctor.Generator);
}
emitMappings.ContextTypeBuilderCallback?.Invoke(builder, ctor.Generator);
// We are calling this last to ensure that our own services are ready
if (_innerServiceProviderField != null)
{
ctor.Generator
// _innerSp = InnerServiceProviderFactory(this)
.Ldarg_0()
.Ldarg_0()
.EmitCall(mappings.InnerServiceProviderFactoryMethod)
.Stfld(_innerServiceProviderField);
}
ctor.Generator.Emit(OpCodes.Ret);
Constructor = ctor;
CreateCallbacks.Add(() => { parentBuilder.CreateType(); });
if (ParentListField != null)
{
EmitPushPopParent(builder, typeSystem);
}
CreateAllTypes();
ContextType = builder.CreateType();
}
public IXamlILEmitter Emit(SreOpCode code, IXamlField field)
{
return(Emit(Instruction.Create(Dic[code], Import(((CecilField)field).Field))));
}
public SetValueWithPrioritySetter(AvaloniaXamlIlWellKnownTypes types, IXamlType declaringType, IXamlField avaloniaProperty,
IXamlType propertyType)
: base(types, declaringType, avaloniaProperty, propertyType.AcceptsNull())
{
Parameters = new[] { types.BindingPriority, propertyType };
}
public static IXamlILEmitter Stsfld(this IXamlILEmitter emitter, IXamlField field) => emitter.Emit(OpCodes.Stsfld, field);
public IXamlILEmitter Emit(OpCode code, IXamlField field)
{
_ilg.Emit(code, ((SreField)field).Field);
return(this);
}
public static IXamlILEmitter LdThisFld(this IXamlILEmitter emitter, IXamlField field) => emitter.Ldarg_0().Emit(OpCodes.Ldfld, field);
public UnsetValueSetter(AvaloniaXamlIlWellKnownTypes types, IXamlType declaringType, IXamlField avaloniaProperty)
: base(types, declaringType, avaloniaProperty)
{
Parameters = new[] { types.UnsetValueType };
}
public BindingSetter(AvaloniaXamlIlWellKnownTypes types,
IXamlType declaringType,
IXamlField avaloniaProperty) : base(types, declaringType, avaloniaProperty)
{
Parameters = new[] { types.IBinding };
}
public BindingWithPrioritySetter(AvaloniaXamlIlWellKnownTypes types,
IXamlType declaringType,
IXamlField avaloniaProperty) : base(types, declaringType, avaloniaProperty, false)
{
Parameters = new[] { types.BindingPriority, types.IBinding };
}