public override void GenerateMethods(IDLInterface idlIntf)
{
if (idlIntf.Methods != null) // If got methods
{
bAddNamespace = idlIntf.Methods.Count > 0;
foreach (IDLMethod idlMethod in idlIntf.Methods)
{
// Structs for capturing input/output from method.
Udbus.Parsing.CodeTypeDeferredStructHolder paramsHolder = new Udbus.Parsing.CodeTypeDeferredStructHolder(idlMethod.Name + "AsyncParams");
Udbus.Parsing.CodeTypeDeferredStructHolder resultHolder = new Udbus.Parsing.CodeTypeDeferredStructHolder(idlMethod.Name + "AsyncResult");
CodeConstructor constructorResults = new CodeConstructor();
CodeConstructor constructorParams = new CodeConstructor();
constructorResults.Attributes = constructorParams.Attributes = MemberAttributes.Public;
// Create Call method.
CodeMemberMethod methodCall = new CodeMemberMethod();
methodCall.Name = "Call" + idlMethod.Name;
// Actual call to proxy arguments will be added to as we parse IDL arguments.
CodeExpressionCollection callParameters = new CodeExpressionCollection();
CodeExpressionCollection callResultArgs = new CodeExpressionCollection();
CodeExpressionCollection interfaceCallArgs = new CodeExpressionCollection();
CodeArgumentReferenceExpression argrefCallData = new CodeArgumentReferenceExpression(dataName);
// Event Args
string eventName = idlMethod.Name + "EventArgs";
CodeTypeDeclaration typeEvent = new CodeTypeDeclaration(eventName);
typeEvent.IsClass = true;
typeEvent.TypeAttributes = TypeAttributes.Public;
typeEvent.BaseTypes.Add(new CodeTypeReference(typeof(AsyncCompletedEventArgs)));
CodeConstructor constructorEventArgs = new CodeConstructor();
eventsDeclarationHolder.Add(typeEvent);
CodeExpressionCollection makeEventArgs = new CodeExpressionCollection();
// Event Raiser...
string raiserName = "raiser" + idlMethod.Name;
CodeTypeReference raiserRef = new CodeTypeReference("AsyncOperationEventRaiser", new CodeTypeReference(eventName));
CodeMemberField fieldRaiser = new CodeMemberField(raiserRef, raiserName);
fieldRaiser.InitExpression = new CodeObjectCreateExpression(raiserRef);
fieldRaiser.Attributes = MemberAttributes.Private;
typeProxy.Members.Add(fieldRaiser);
// Event raiser EventCompleted Property - unfortunately CodeMemberEvent is useless here since can't add custom add/remove.
// So anything other than CSharp is now a bust. Brilliant.
CodeSnippetTypeMember eventRaiser = new CodeSnippetTypeMember();
eventRaiser.Text = string.Format(@" public event System.EventHandler<{0}> {1}Completed
{{
add {{ this.{2}.CompletedEvent += value; }}
remove {{ this.{2}.CompletedEvent -= value; }}
}}
", eventName, idlMethod.Name, raiserName
); // Adding text here.
//CodeMemberEvent eventRaiser = new CodeMemberEvent();
//eventRaiser.Attributes = MemberAttributes.Public;
//CodeParamDeclaredType declaredType = new CodeParamDeclaredType(typeEvent);
//eventRaiser.Type = new CodeTypeReference(CodeBuilderCommon.EventHandlerType.Name, declaredType.CodeType);
//eventRaiser.Name = idlMethod.Name + "Completed";
typeProxy.Members.Add(eventRaiser);
// Async method.
CodeMemberMethod methodAsync = new CodeMemberMethod();
methodAsync.Name = idlMethod.Name + "Async";
methodAsync.Attributes = MemberAttributes.Public;
// Straight-forward interface method.
CodeMemberMethod methodInterface = new CodeMemberMethod();
methodInterface.Name = idlMethod.Name;
methodInterface.Attributes = MemberAttributes.Public;
// CodeComment commentMethod = new CodeComment(idlMethod.Name);
// method.Comments.Add(new CodeCommentStatement(idlMethod.Name));
CodeExpressionCollection asyncArgs = new CodeExpressionCollection();
Udbus.Parsing.BuildContext context = new Udbus.Parsing.BuildContext(contextDeclarationHolder);
foreach (IDLMethodArgument idlMethodArg in idlMethod.Arguments)
{
CodeCommentStatement commentMethod = new CodeCommentStatement(string.Format("{0} {1} \"{2}\"", idlMethodArg.Direction, idlMethodArg.Name, idlMethodArg.Type));
methodAsync.Comments.Add(commentMethod);
methodInterface.Comments.Add(commentMethod);
// Parse the type string for the argument, creating required structs as we go, and returning a type for the argument.
Udbus.Parsing.IDLArgumentTypeNameBuilderBase nameBuilder = new IDLMethodArgumentTypeNameBuilder(idlIntf, idlMethod);
ParamCodeTypeFactory paramtypeHolder = new ParamCodeTypeFactory(CodeTypeFactory.Default,
idlMethodArg.Direction == "out" ? FieldDirection.Out : FieldDirection.In);
Udbus.Parsing.CodeBuilderHelper.BuildCodeParamType(paramtypeHolder, nameBuilder, idlMethodArg.Type, context);
Udbus.Parsing.ICodeParamType paramtype = paramtypeHolder.paramtype;
// Arguments.
CodeParameterDeclarationExpression param = new CodeParameterDeclarationExpression(paramtype.CodeType, idlMethodArg.Name);
CodeVariableReferenceExpression varrefMethodArg = new CodeVariableReferenceExpression(idlMethodArg.Name);
if (idlMethodArg.Direction == "out") // If out argument
{
// Add to interface parameters.
interfaceCallArgs.Add(new CodeDirectionExpression(FieldDirection.Out, varrefMethodArg));
// Put into result holding struct...
param.Direction = FieldDirection.Out;
methodInterface.Parameters.Add(param);
CodeTypeReference argType = CodeBuilderCommon.GetReadOnlyCodeReference(paramtypeHolder.paramtype.CodeType);
CodeMemberField fieldResultArg = new CodeMemberField(argType, idlMethodArg.Name);
fieldResultArg.Attributes = MemberAttributes.Public;
resultHolder.CodeType.Members.Add(fieldResultArg);
constructorResults.Parameters.Add(new CodeParameterDeclarationExpression(paramtype.CodeType, idlMethodArg.Name));
CodeFieldReferenceExpression thisArg = new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), idlMethodArg.Name
);
constructorResults.Statements.Add(new CodeAssignStatement(thisArg,
new CodeArgumentReferenceExpression(idlMethodArg.Name)));
// Add placeholder variables to call method.
methodCall.Statements.Add(new CodeVariableDeclarationStatement(paramtype.CodeType, idlMethodArg.Name));
// Add appropriate parameter in actual call to interface.
callParameters.Add(new CodeDirectionExpression(FieldDirection.Out, varrefMethodArg));
// Add appropriate parameter in call to result constructor.
callResultArgs.Add(new CodeArgumentReferenceExpression(idlMethodArg.Name));
// Put into event args class...
string fieldEventArgName = idlMethodArg.Name + "_";
CodeMemberField fieldEventArg = new CodeMemberField(paramtype.CodeType, fieldEventArgName);
fieldEventArg.Attributes = MemberAttributes.Private;
typeEvent.Members.Add(fieldEventArg);
// Add argument property to EventArgs.
CodeMemberProperty propEventArg = new CodeMemberProperty();
propEventArg.Attributes = MemberAttributes.Public | MemberAttributes.Final;
propEventArg.Name = idlMethodArg.Name;
propEventArg.HasGet = true;
propEventArg.Type = paramtype.CodeType;
propEventArg.GetStatements.Add(new CodeMethodInvokeExpression(null, "RaiseExceptionIfNecessary"));
propEventArg.GetStatements.Add(new CodeMethodReturnStatement(new CodeMethodReferenceExpression(new CodeThisReferenceExpression(), fieldEventArgName)));
typeEvent.Members.Add(propEventArg);
// Add constructor parameter and statement to EventArgs.
constructorEventArgs.Parameters.Add(new CodeParameterDeclarationExpression(paramtype.CodeType, idlMethodArg.Name));
constructorEventArgs.Statements.Add(new CodeAssignStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), fieldEventArgName),
new CodeArgumentReferenceExpression(idlMethodArg.Name)
));
// Add as parameter in call to EventArgs constructor.
makeEventArgs.Add(new CodeFieldReferenceExpression(new CodeArgumentReferenceExpression(resultName), idlMethodArg.Name));
} // Ends if out argument
else // Else in argument
{
// Add to interface parameters.
interfaceCallArgs.Add(varrefMethodArg);
// Put into parameter holding struct.
CodeMemberField fieldArg = new CodeMemberField(CodeBuilderCommon.GetReadOnlyCodeReference(paramtype.CodeType), idlMethodArg.Name);
fieldArg.Attributes = MemberAttributes.Public;
paramsHolder.CodeType.Members.Add(fieldArg);
constructorParams.Parameters.Add(new CodeParameterDeclarationExpression(paramtype.CodeType, idlMethodArg.Name));
CodeFieldReferenceExpression thisArg = new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), idlMethodArg.Name
);
constructorParams.Statements.Add(new CodeAssignStatement(thisArg,
new CodeArgumentReferenceExpression(idlMethodArg.Name)));
// Add appropriate parameter in actual call to interface.
callParameters.Add(new CodeFieldReferenceExpression(argrefCallData, idlMethodArg.Name));
// Add appropriate parameter to async method parameters constructor call.
asyncArgs.Add(new CodeArgumentReferenceExpression(idlMethodArg.Name));
// Add parameter to async method.
methodAsync.Parameters.Add(param);
// Add parameter to interface method.
methodInterface.Parameters.Add(param);
} // Ends else in argument
} // Ends loop over method arguments
methodAsync.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "userState"));
// Add method body, then sort out arguments code...
CodeFieldReferenceExpression thisRaiser = new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), raiserName
);
CodeTypeReference typerefResult = null;
if (idlMethod.Return != null) // If method has return type
{
// Add result to Result type.
// TODO replace typeof(string) with actual return type.
typerefResult = new CodeTypeReference("???");
}
CodeTypeReference typerefResults = null;
CodeTypeReference typerefParams = null;
CodeExpression exprAsyncParamValue = null;
string asyncMethodName = "AsyncFuncImpl"; // Default is assuming that function returns something.
if (paramsHolder.QuType()) // If got params type
{
typerefParams = new CodeTypeReference(paramsHolder.CodeType.Name);
// Add proxy field to params struct.
CodeMemberField memberParamsProxy = new CodeMemberField(new CodeTypeReference("readonly " + genInterfaceName), proxyName);
memberParamsProxy.Attributes = MemberAttributes.Public;
paramsHolder.CodeType.Members.Insert(0, memberParamsProxy); // TODO: Going to need a using or a fully qualified name.
// Add initialisation to constructor
constructorParams.Parameters.Insert(0, paramProxy);
// Constructor will take proxy as first argument.
constructorParams.Statements.Insert(0, assignProxy);
paramsHolder.CodeType.TypeAttributes = TypeAttributes.NestedPrivate;
paramsHolder.CodeType.IsStruct = true;
constructorParams.Attributes = MemberAttributes.Public;
paramsHolder.CodeType.Members.Add(constructorParams);
typeProxy.Members.Add(paramsHolder.CodeType);
asyncArgs.Insert(0, thisProxyFieldRef);
exprAsyncParamValue = new CodeObjectCreateExpression(typerefParams, asyncArgs.Cast <CodeExpression>().ToArray());
} // Ends if got params type
if (resultHolder.QuType()) // If got results type
{
typerefResults = new CodeTypeReference(resultHolder.CodeType.Name);
methodCall.ReturnType = typerefResults;
// Setup call method parameters.
if (idlMethod.Return != null)
{
// Add result field to EventArgs.
CodeMemberField fieldResult = new CodeMemberField(typerefResult, resultName);
fieldResult.Attributes = MemberAttributes.Private;
typeEvent.Members.Insert(0, fieldResult);
// Add result property to EventArgs.
CodeMemberProperty propResult = new CodeMemberProperty();
propResult.Attributes = MemberAttributes.Public;
propResult.Name = resultName;
propResult.HasGet = true;
propResult.Type = typerefResult;
propResult.GetStatements.Add(new CodeMethodInvokeExpression(null, "RaiseExceptionIfNecessary"));
propResult.GetStatements.Add(new CodeMethodReferenceExpression(new CodeThisReferenceExpression(), resultName));
typeEvent.Members.Add(propResult);
// Add suitable parameter as first EventArgs constructor argument.
constructorEventArgs.Parameters.Insert(0, new CodeParameterDeclarationExpression(typerefResult, resultName));
// Add statement to initialise result member.
CodeFieldReferenceExpression thisArg = new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), resultName
);
// Include result in parameters to EventArgs in MakeEventArgs statements.
makeEventArgs.Insert(0, new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), resultName));
// Add result to Result type.
CodeTypeReference typerefReadOnlyResult = CodeBuilderCommon.GetReadOnlyCodeReference(typerefResult);
CodeMemberField fieldReadOnlyResult = new CodeMemberField(typerefReadOnlyResult, resultName);
fieldResult.Attributes = MemberAttributes.Public;
resultHolder.CodeType.Members.Insert(0, fieldReadOnlyResult);
// Add suitable parameter as first constructor argument.
constructorResults.Parameters.Insert(0, new CodeParameterDeclarationExpression(typerefResult, resultName));
// Add statement to initialise result member.
constructorResults.Statements.Insert(0, new CodeAssignStatement(thisArg,
new CodeArgumentReferenceExpression(resultName)));
} // End if there is a return statement
resultHolder.CodeType.TypeAttributes = TypeAttributes.NestedPrivate;
resultHolder.CodeType.IsStruct = true;
resultHolder.CodeType.Members.Add(constructorResults);
typeProxy.Members.Add(resultHolder.CodeType);
} // Ends if got results type
else // Else no results type
{
// Absolutely no results (including out parameters) means it's an Action.
asyncMethodName = "AsyncActionImpl";
} // Ends else no results type
// Time to bite the bullet.
CodeTypeReference typerefEvent = new CodeTypeReference(typeEvent.Name);
CodeMemberMethod methodMakeEventArgs = new CodeMemberMethod();
methodMakeEventArgs.Name = "Make" + idlMethod.Name + "AsyncEventArgs";
// Add missing parameters to EventArgs...
constructorEventArgs.Parameters.Add(CodeBuilderCommon.paramdeclException);
constructorEventArgs.Parameters.Add(CodeBuilderCommon.paramdeclCancelled);
constructorEventArgs.Parameters.Add(CodeBuilderCommon.paramdeclUserState);
// Pass through to base class.
constructorEventArgs.BaseConstructorArgs.Add(CodeBuilderCommon.argrefException);
constructorEventArgs.BaseConstructorArgs.Add(CodeBuilderCommon.argrefCancelled);
constructorEventArgs.BaseConstructorArgs.Add(CodeBuilderCommon.argrefUserState);
// Add MakeEventArgs method...
// Create MakeEventArgs method.
methodMakeEventArgs.Attributes = MemberAttributes.Private | MemberAttributes.Static;
if (typerefParams != null) // If got params type
{
methodMakeEventArgs.Parameters.Add(new CodeParameterDeclarationExpression(typerefParams, dataName));
}
else // Else no params type
{
// The interface will be passed as the first parameter.
methodMakeEventArgs.Parameters.Add(paramProxy);
} // Ends else no params type
if (typerefResults != null) // If got results type
{
methodMakeEventArgs.Parameters.Add(new CodeParameterDeclarationExpression(typerefResults, resultName));
}
methodMakeEventArgs.Parameters.Add(CodeBuilderCommon.paramdeclException);
methodMakeEventArgs.Parameters.Add(CodeBuilderCommon.paramdeclCancelled);
methodMakeEventArgs.Parameters.Add(CodeBuilderCommon.paramdeclUserState);
makeEventArgs.Add(CodeBuilderCommon.argrefException);
makeEventArgs.Add(CodeBuilderCommon.argrefCancelled);
makeEventArgs.Add(CodeBuilderCommon.argrefUserState);
methodMakeEventArgs.Statements.Add(new CodeMethodReturnStatement(
new CodeObjectCreateExpression(
typerefEvent, makeEventArgs.Cast <CodeExpression>().ToArray()
)
));
methodMakeEventArgs.ReturnType = typerefEvent;
typeProxy.Members.Add(methodMakeEventArgs);
// Setup call method parameters.
methodCall.Attributes = MemberAttributes.Private | MemberAttributes.Static;
CodeExpression exprProxyRef;
//methodCall.ReturnType = new CodeTypeReference(resultHolder.CodeType.Name);
if (typerefParams != null) // If passing parameters
{
methodCall.Parameters.Add(new CodeParameterDeclarationExpression(typerefParams, dataName));
exprProxyRef = new CodeFieldReferenceExpression(argrefCallData, proxyName);
} // Ends if passing parameters
else // Else just passing proxy
{
methodCall.Parameters.Add(new CodeParameterDeclarationExpression(genInterfaceName, proxyName));
exprProxyRef = new CodeArgumentReferenceExpression(proxyName);
} // Ends else just passing proxy
// Add call method body...
// Invocation to proxy.
CodeMethodReferenceExpression methodProxy = new CodeMethodReferenceExpression(exprProxyRef, idlMethod.Name);
CodeMethodInvokeExpression invokeProxy = new CodeMethodInvokeExpression(methodProxy, callParameters.Cast <CodeExpression>().ToArray());
if (idlMethod.Return != null) // If got return type
{
// TODO - return values.
// Add invocation of actual interface method and store result.
CodeVariableDeclarationStatement exprResult = new CodeVariableDeclarationStatement(typerefResult, resultName, invokeProxy);
methodCall.Statements.Add(exprResult);
// Initialise result parameter in Result struct.
callResultArgs.Insert(0, new CodeArgumentReferenceExpression(resultName));
} // Ends if got return type
else // Else no return type
{
// Add invocation of actual interface method and ignore result.
methodCall.Statements.Add(invokeProxy);
} // Ends else no return type
if (typerefResults != null) // If got result type
{
// Create Call return statement.
CodeMethodReturnStatement retCall = new CodeMethodReturnStatement(
new CodeObjectCreateExpression(typerefResults, callResultArgs.Cast <CodeExpression>().ToArray())
);
methodCall.Statements.Add(retCall);
} // Ends if got result type
// Add call method to type.
typeProxy.Members.Add(methodCall);
// Add async method implementation...
if (exprAsyncParamValue == null) // If no params
{
// Just pass the proxy.
exprAsyncParamValue = thisProxyFieldRef;
} // Ends if no params
methodAsync.Statements.Add(new CodeMethodInvokeExpression(new CodeMethodReferenceExpression(thisRaiser, asyncMethodName)
, new CodeArgumentReferenceExpression("userState")
, exprAsyncParamValue
, new CodeMethodReferenceExpression(null, methodCall.Name)
, new CodeMethodReferenceExpression(null, methodMakeEventArgs.Name)
));
methodInterface.Statements.Add(new CodeMethodInvokeExpression(new CodeMethodReferenceExpression(thisProxyFieldRef, idlMethod.Name)
, interfaceCallArgs.Cast <CodeExpression>().ToArray()
));
// Finish up.
typeEvent.Members.Add(constructorEventArgs);
constructorEventArgs.Attributes = MemberAttributes.Public;
ns.Types.Add(typeEvent);
typeProxy.Members.Add(methodAsync);
typeProxy.Members.Add(methodInterface);
} // Ends loop over methods
} // Ends if got methods
}