public static bool IsMarkedAsReadOnly(this PropertyDefinition property)
{
CustomAttribute attribute = property.GetDependencyPropertyAttribute();
bool? isReadonly = attribute?.Properties.FirstOrDefault(p => p.Name == Consts.IsReadOnly).Argument.Value as bool?;
return(isReadonly == true);
}
protected override bool ShouldConvert(TypeDefinition type, PropertyDefinition property)
{
CustomAttribute typeAttribute = type.GetDependencyPropertyAttribute();
CustomAttribute propertyAttribute = property.GetDependencyPropertyAttribute();
FieldDefinition backingField = type.GetBackingFieldForProperty(property);
if (typeAttribute == null && propertyAttribute == null)
{
return(false);
}
if (typeAttribute != null)
{
if (backingField == null)
{
return(false);
}
if (property.SetMethod == null)
{
return(false);
}
if (property.CustomAttributes.Any(attribute => attribute.AttributeType.Name == nameof(ExcludeDependencyPropertyAttribute)))
{
return(false);
}
}
return(true);
}
public static void ValidateBeforeDependencyPropertyConversion(this PropertyDefinition property, TypeDefinition type)
{
CustomAttribute attribute = property.GetDependencyPropertyAttribute();
FieldDefinition backingField = type.GetBackingFieldForProperty(property);
if (attribute != null && backingField == null)
{
throw new WeavingException("Cannot convert to dependency property because the property does not have a backing field.");
}
if (property.GetMethod == null || property.SetMethod == null)
{
throw new WeavingException("Cannot convert to dependency property because the property is not an auto property.");
}
}
private void AddInitializationToStaticConstructorReadonly(TypeDefinition type, PropertyDefinition property, FieldDefinition dependencyPropertyKeyField, FieldDefinition field, Range instructionRange)
{
MethodDefinition staticConstructor = type.GetStaticConstructor();
List <Instruction> instructions = CreateInstructionsUpToRegistration(type, property, instructionRange, property.GetDependencyPropertyAttribute());
instructions.Add(Instruction.Create(OpCodes.Call, _registerDependencyPropertyReadOnly));
instructions.Add(Instruction.Create(OpCodes.Stsfld, dependencyPropertyKeyField));
instructions.Add(Instruction.Create(OpCodes.Ldsfld, dependencyPropertyKeyField));
instructions.Add(Instruction.Create(OpCodes.Callvirt, _getDependencyProperty));
instructions.Add(Instruction.Create(OpCodes.Stsfld, field));
instructions.Reverse();
foreach (Instruction instruction in instructions)
{
staticConstructor.Body.Instructions.Insert(0, instruction);
}
}