public override void GenerateCode(CodeGenerationManager manager, object obj)
{
WebServiceInputActivity activity = obj as WebServiceInputActivity;
if (manager == null)
{
throw new ArgumentNullException("manager");
}
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (activity != null)
{
if (!(manager.GetService(typeof(ITypeProvider)) is ITypeProvider))
{
throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(ITypeProvider).FullName }));
}
CodeNamespaceCollection codeNamespaceCollection = manager.Context[typeof(CodeNamespaceCollection)] as CodeNamespaceCollection;
if (codeNamespaceCollection == null)
{
throw new InvalidOperationException(SR.GetString("Error_ContextStackItemMissing", new object[] { typeof(CodeNamespaceCollection).Name }));
}
CodeTypeDeclaration declaration = this.CreateOrGetServiceDeclaration(Helpers.GetRootActivity(activity), codeNamespaceCollection);
if (activity.InterfaceType != null)
{
bool flag = false;
MethodInfo interfaceMethod = Helpers.GetInterfaceMethod(activity.InterfaceType, activity.MethodName);
System.Workflow.Activities.Common.SupportedLanguages supportedLanguage = System.Workflow.Activities.Common.CompilerHelpers.GetSupportedLanguage(manager);
foreach (CodeTypeMember member in declaration.Members)
{
if ((member is CodeMemberMethod) && (string.Compare(member.Name, interfaceMethod.Name, (supportedLanguage == System.Workflow.Activities.Common.SupportedLanguages.CSharp) ? StringComparison.InvariantCulture : StringComparison.InvariantCultureIgnoreCase) == 0))
{
flag = true;
}
}
if (!flag)
{
declaration.Members.Add(this.GetWebServiceMethodDeclaraion(interfaceMethod, activity.IsActivating, supportedLanguage));
}
}
base.GenerateCode(manager, obj);
}
}
private CodeMemberMethod GetWebServiceMethodDeclaraion(MethodInfo methodInfo, bool isActivation, System.Workflow.Activities.Common.SupportedLanguages language)
{
CodeMemberMethod method = new CodeMemberMethod {
Attributes = MemberAttributes.Public,
ReturnType = new CodeTypeReference(methodInfo.ReturnType),
Name = methodInfo.Name
};
CodeAttributeDeclaration declaration = new CodeAttributeDeclaration("WebMethodAttribute");
declaration.Arguments.Add(new CodeAttributeArgument("Description", new CodePrimitiveExpression(methodInfo.Name)));
declaration.Arguments.Add(new CodeAttributeArgument("EnableSession", new CodePrimitiveExpression(false)));
method.CustomAttributes.Add(declaration);
List <ParameterInfo> list = new List <ParameterInfo>();
CodeArrayCreateExpression expression = new CodeArrayCreateExpression {
CreateType = new CodeTypeReference(typeof(object))
};
foreach (ParameterInfo info in methodInfo.GetParameters())
{
CodeParameterDeclarationExpression expression2 = new CodeParameterDeclarationExpression();
if (info.IsOut || info.ParameterType.IsByRef)
{
expression2.Type = new CodeTypeReference(info.ParameterType.GetElementType().FullName);
expression2.Direction = info.IsOut ? FieldDirection.Out : FieldDirection.Ref;
if ((expression2.Direction == FieldDirection.Out) && (language == System.Workflow.Activities.Common.SupportedLanguages.VB))
{
expression2.CustomAttributes.Add(new CodeAttributeDeclaration(new CodeTypeReference(typeof(OutAttribute))));
}
list.Add(info);
}
else
{
expression2.Type = new CodeTypeReference(info.ParameterType.FullName);
}
expression2.Name = info.Name;
method.Parameters.Add(expression2);
if (!info.IsOut)
{
expression.Initializers.Add(new CodeArgumentReferenceExpression(info.Name));
}
}
CodeMethodInvokeExpression expression3 = new CodeMethodInvokeExpression {
Method = new CodeMethodReferenceExpression(new CodeThisReferenceExpression(), "Invoke")
};
expression3.Parameters.Add(new CodeTypeOfExpression(methodInfo.DeclaringType));
expression3.Parameters.Add(new CodePrimitiveExpression(methodInfo.Name));
expression3.Parameters.Add(new CodePrimitiveExpression(isActivation));
expression3.Parameters.Add(expression);
int num = (methodInfo.ReturnType == typeof(void)) ? 0 : 1;
if (list.Count != 0)
{
CodeVariableDeclarationStatement statement = new CodeVariableDeclarationStatement(new CodeTypeReference(new CodeTypeReference(typeof(object)), 1), "results")
{
InitExpression = expression3
};
method.Statements.Add(statement);
for (int i = 0; i < list.Count; i++)
{
ParameterInfo info2 = list[i];
CodeAssignStatement statement2 = new CodeAssignStatement();
CodeExpression expression4 = new CodeArgumentReferenceExpression(info2.Name);
CodeExpression expression5 = new CodeCastExpression(new CodeTypeReference(info2.ParameterType.GetElementType().FullName), new CodeIndexerExpression(new CodeVariableReferenceExpression("results"), new CodeExpression[] { new CodePrimitiveExpression(i + num) }));
statement2.Left = expression4;
statement2.Right = expression5;
method.Statements.Add(statement2);
}
}
if (methodInfo.ReturnType != typeof(void))
{
CodeExpression expression6;
if (list.Count != 0)
{
expression6 = new CodeVariableReferenceExpression("results");
}
else
{
expression6 = expression3;
}
CodeMethodReturnStatement statement3 = new CodeMethodReturnStatement(new CodeCastExpression(methodInfo.ReturnType, new CodeIndexerExpression(expression6, new CodeExpression[] { new CodePrimitiveExpression(0) })));
method.Statements.Add(statement3);
return(method);
}
if ((list.Count == 0) && (methodInfo.ReturnType == typeof(void)))
{
method.Statements.Add(expression3);
}
return(method);
}