public static SecurityPermission GetSecurityPermission <TAttribute>(this IAttributeProvider parent)
where TAttribute : SecurityAttribute =>
!parent.HasAttribute <TAttribute>()
? new SecurityPermission()
: new SecurityPermission(
level : parent.GetAttributeValue <TAttribute, SecurityPermissionLevels>(a => a.PermissionLevel) ?? SecurityPermissionLevels.AllowAuthorized,
roles : parent.GetAttributeValue <TAttribute>(a => a.Roles),
name : typeof(TAttribute).Name.Replace("Attribute", string.Empty)
);
public static T?GetAttributeValue <TAttribute, T>(this IAttributeProvider obj, string valueName)
where TAttribute : Attribute
where T : struct
{
var result = obj.GetAttributeValue <TAttribute>(valueName);
if (result == null)
{
return(null);
}
return(new T?((T)result));
}
public static TypeViewModel GetAttributeValue <TAttribute>(this IAttributeProvider obj, Expression <Func <TAttribute, Type> > propertyExpression)
where TAttribute : Attribute
{
var value = obj.GetAttributeValue <TAttribute>(propertyExpression.GetExpressedProperty().Name);
if (value is Type reflectionValue)
{
return(new ReflectionTypeViewModel(reflectionValue));
}
if (value is ITypeSymbol symbolValue)
{
return(new SymbolTypeViewModel(symbolValue));
}
return(null);
}
public T Attr <T>(string name)
{
Control control = Results.First();
IAttributeProvider provider = wfQueryContext.DefaultAttributeProvider;
T value = default(T);
if (provider.HasAttributeValue(control, name))
{
value = provider.GetAttributeValue <T>(control, name);
}
else
{
value = GetPropertyValue <T>(control, name);
}
return(value);
}
public static string GetAttributeValue <TAttribute>(this IAttributeProvider obj, Expression <Func <TAttribute, string> > propertyExpression)
where TAttribute : Attribute
{
return(obj.GetAttributeValue <TAttribute>(propertyExpression.GetExpressedProperty().Name) as string);
}
public static T?GetAttributeValue <TAttribute, T>(this IAttributeProvider obj, Expression <Func <TAttribute, T> > propertyExpression)
where TAttribute : Attribute
where T : struct
{
return(obj.GetAttributeValue <TAttribute, T>(propertyExpression.GetExpressedProperty().Name));
}