internal static Attribute[] LoadCustomAttributes(CodeAttributeDeclarationCollection codeAttributeCollection, DesignTimeType declaringType)
{
if (declaringType == null)
{
throw new ArgumentNullException("declaringType");
}
if (codeAttributeCollection == null)
{
return(new Attribute[0]);
}
List <Attribute> attributes = new List <Attribute>();
// walk through the attributes
foreach (CodeAttributeDeclaration codeAttribute in codeAttributeCollection)
{
String[] argumentNames = new String[codeAttribute.Arguments.Count];
object[] argumentValues = new object[codeAttribute.Arguments.Count];
Type attributeType = declaringType.ResolveType(codeAttribute.Name);
if (attributeType != null)
{
int index = 0;
// walk through tha arguments
foreach (CodeAttributeArgument codeArgument in codeAttribute.Arguments)
{
argumentNames[index] = codeArgument.Name;
if (codeArgument.Value is CodePrimitiveExpression)
{
argumentValues[index] = (codeArgument.Value as CodePrimitiveExpression).Value;
}
else if (codeArgument.Value is CodeTypeOfExpression)
{
argumentValues[index] = codeArgument.Value;
}
else if (codeArgument.Value is CodeSnippetExpression)
{
argumentValues[index] = (codeArgument.Value as CodeSnippetExpression).Value;
}
else
{
argumentValues[index] = new ArgumentException(SR.GetString(SR.Error_TypeSystemAttributeArgument));
}
index++;
}
bool alreadyExists = false;
foreach (AttributeInfoAttribute attribInfo in attributes)
{
if (attribInfo.AttributeInfo.AttributeType.FullName.Equals(attributeType.FullName))
{
alreadyExists = true;
break;
}
}
//
bool allowMultiple = false;
if (alreadyExists && attributeType.Assembly != null)
{
object[] usageAttribs = attributeType.GetCustomAttributes(typeof(System.AttributeUsageAttribute), true);
if (usageAttribs != null && usageAttribs.Length > 0)
{
AttributeUsageAttribute usage = usageAttribs[0] as AttributeUsageAttribute;
allowMultiple = usage.AllowMultiple;
}
}
// now create and add the placeholder attribute
if (!alreadyExists || allowMultiple)
{
attributes.Add(AttributeInfoAttribute.CreateAttributeInfoAttribute(attributeType, argumentNames, argumentValues));
}
}
}
return(attributes.ToArray());
}
internal static Attribute[] LoadCustomAttributes(CodeAttributeDeclarationCollection codeAttributeCollection, DesignTimeType declaringType)
{
if (declaringType == null)
{
throw new ArgumentNullException("declaringType");
}
if (codeAttributeCollection == null)
{
return(new Attribute[0]);
}
List <Attribute> list = new List <Attribute>();
foreach (CodeAttributeDeclaration declaration in codeAttributeCollection)
{
string[] argumentNames = new string[declaration.Arguments.Count];
object[] argumentValues = new object[declaration.Arguments.Count];
Type attributeType = declaringType.ResolveType(declaration.Name);
if (attributeType != null)
{
int index = 0;
foreach (CodeAttributeArgument argument in declaration.Arguments)
{
argumentNames[index] = argument.Name;
if (argument.Value is CodePrimitiveExpression)
{
argumentValues[index] = (argument.Value as CodePrimitiveExpression).Value;
}
else if (argument.Value is CodeTypeOfExpression)
{
argumentValues[index] = argument.Value;
}
else if (argument.Value is CodeSnippetExpression)
{
argumentValues[index] = (argument.Value as CodeSnippetExpression).Value;
}
else
{
argumentValues[index] = new ArgumentException(SR.GetString("Error_TypeSystemAttributeArgument"));
}
index++;
}
bool flag = false;
foreach (AttributeInfoAttribute attribute in list)
{
if (attribute.AttributeInfo.AttributeType.FullName.Equals(attributeType.FullName))
{
flag = true;
break;
}
}
bool allowMultiple = false;
if (flag && (attributeType.Assembly != null))
{
object[] customAttributes = attributeType.GetCustomAttributes(typeof(AttributeUsageAttribute), true);
if ((customAttributes != null) && (customAttributes.Length > 0))
{
AttributeUsageAttribute attribute2 = customAttributes[0] as AttributeUsageAttribute;
allowMultiple = attribute2.AllowMultiple;
}
}
if (!flag || allowMultiple)
{
list.Add(AttributeInfoAttribute.CreateAttributeInfoAttribute(attributeType, argumentNames, argumentValues));
}
}
}
return(list.ToArray());
}