private static CodeTypeDeclaration GetCallbackContractType(CodeTypeDeclaration iface)
{
CodeAttributeDeclaration serviceContractAttribute = null;
foreach (CodeAttributeDeclaration attr in iface.CustomAttributes)
{
if (CodeDomHelpers.MatchType(attr.AttributeType, typeof(ServiceContractAttribute)))
{
serviceContractAttribute = attr;
break;
}
}
if (serviceContractAttribute != null)
{
foreach (CodeAttributeArgument arg in serviceContractAttribute.Arguments)
{
if (arg.Name == "CallbackContract")
{
CodeTypeOfExpression exp = (CodeTypeOfExpression)arg.Value;
return(CodeDomHelpers.ResolveTypeReference(exp.Type));
}
}
}
return(null);
}
protected override void VisitClientClass(CodeTypeDeclaration type)
{
base.VisitClientClass(type);
CodeTypeDeclaration serviceContractInterface = CodeDomHelpers.ResolveTypeReference(type.BaseTypes[0].TypeArguments[0]);
CodeTypeDeclaration callbackInterface = GetCallbackContractType(serviceContractInterface);
RemoveAsyncMethods(callbackInterface);
CreateEventBasedDuplexClass(type, callbackInterface);
}