public static bool HasAttribute(MethodInfo methodInfo, Type attributeType, bool inherit = false, bool throwOnError = true)
{
if (Throw.IfIsNull(methodInfo, nameof(methodInfo), throwOnError))
{
return(false);
}
if (!TypeHelpers.InheritFromClass <Attribute>(attributeType, false))
{
throw new ArgumentException($"Parameter '{nameof(attributeType)}' has to be an Attribute Type!");
}
return(methodInfo.GetCustomAttribute(attributeType, inherit) != null);
}
public static bool TryAs(object value, Type type, out object outValue)
{
if (value == null)
{
outValue = null;
return(false);
}
var t = value.GetType();
if (t == type)
{
outValue = value;
return(true);
}
if (TypeHelpers.ImplementsInterface(t, type, false) || TypeHelpers.InheritFromClass(t, type, true))
{
outValue = value;
return(true);
}
var method = TypeHelpers.GetImplicitCastMethodTo(t, type, false);
if (method != null)
{
outValue = method.Invoke(null, new object[] {
value
});
return(true);
}
if (TypeHelpers.IsNullableType(type))
{
var underlingType = Nullable.GetUnderlyingType(type);
if (TryAs(value, underlingType, out var innerValue))
{
outValue = innerValue;
return(true);
}
}
outValue = null;
return(false);
}
