/// <summary>
/// collects the custom attributes on the return parameter and from
/// the return paramters from inherited methods.
/// </summary>
/// <returns>a collection of attributes</returns>
public static AttributeExtCollection CollectReturnParameterAttributes(MethodInfo method)
{
AttributeExtCollection result = AttributeExtCollection.ConvertToAttributeCollection(
method.ReturnTypeCustomAttributes.GetCustomAttributes(true));
if (!method.IsVirtual)
{
return(result);
}
MethodInfo baseDecl = method.GetBaseDefinition();
if (!baseDecl.Equals(method))
{
// add return param attributes from base definition if not already present
result = result.MergeMissingAttributes(baseDecl.ReturnTypeCustomAttributes.GetCustomAttributes(true));
}
Type declaringType = method.DeclaringType;
// search interfaces for method definition
Type[] interfaces = declaringType.GetInterfaces();
foreach (Type interf in interfaces)
{
MethodInfo found = IsMethodDefinedInInterface(method, interf);
if (found != null)
{
// add return param attributes from interface definition if not already present
result = result.MergeMissingAttributes(found.ReturnTypeCustomAttributes.GetCustomAttributes(true));
}
}
return(result);
}
/// <summary>
/// collects the custom attributes on the current parameter and from
/// the paramters from inherited methods.
/// </summary>
/// <param name="paramInfo">the parameter to check</param>
/// <returns>a collection of attributes</returns>
public static AttributeExtCollection CollectParameterAttributes(ParameterInfo paramInfo, MethodInfo paramInMethod)
{
AttributeExtCollection result = AttributeExtCollection.ConvertToAttributeCollection(
paramInfo.GetCustomAttributes(true));
if (!paramInMethod.IsVirtual)
{
return(result);
}
MethodInfo baseDecl = paramInMethod.GetBaseDefinition();
if (!baseDecl.Equals(paramInMethod))
{
// add param attributes from base definition if not already present
ParameterInfo[] baseParams = baseDecl.GetParameters();
ParameterInfo baseParamToConsider = baseParams[paramInfo.Position];
result = result.MergeMissingAttributes(baseParamToConsider.GetCustomAttributes(true));
}
Type declaringType = paramInMethod.DeclaringType;
// search interfaces for method definition
Type[] interfaces = declaringType.GetInterfaces();
foreach (Type interf in interfaces)
{
MethodInfo found = IsMethodDefinedInInterface(paramInMethod, interf);
if (found != null)
{
// add param attributes from interface definition if not already present
ParameterInfo[] ifParams = found.GetParameters();
ParameterInfo ifParamToConsider = ifParams[paramInfo.Position];
result = result.MergeMissingAttributes(ifParamToConsider.GetCustomAttributes(true));
}
}
return(result);
}