public static CSType ToCSSimpleType(NetTypeBundle ntb, CSUsingPackages use)
{
if (!String.IsNullOrEmpty(ntb.NameSpace))
{
use.AddIfNotPresent(ntb.NameSpace);
}
return(ntb.Entity == EntityType.Tuple ? ToCSTuple(ntb.TupleTypes, use) : ntb.ToCSType(use));
}
public CSType ToCSType(CSUsingPackages use)
{
if (!String.IsNullOrEmpty(NameSpace))
{
use.AddIfNotPresent(NameSpace);
}
if (IsGenericReference)
{
CSGenericReferenceType genref = new CSGenericReferenceType(GenericDepth, GenericIndex);
if (this.GenericConstraints.Count > 0)
{
genref.InterfaceConstraints.AddRange(this.GenericConstraints.Select(ntb => ntb.ToCSType(use)));
}
return(genref);
}
return(Entity == EntityType.Tuple ? ToCSTuple(TupleTypes, use) :
new CSSimpleType(Type, false, GenericTypes.Select(ntb => ntb.ToCSType(use)).ToArray()));
}
CSInterface CompileProtocol(ProtocolDeclaration proto, CSUsingPackages use)
{
var iface = new CSInterface(CSVisibility.Public, proto.Name);
kProtocolAttribute.AttachBefore(iface);
var filteredInheritance = proto.Inheritance.FindAll(inh => !TypeSpecIsAnyOrAnyObject(inh.InheritedTypeSpec));
iface.Inheritance.AddRange(filteredInheritance.Select(inh => {
var netIface = typeMapper.GetDotNetNameForTypeSpec(inh.InheritedTypeSpec);
use.AddIfNotPresent(netIface.Namespace);
return(new CSIdentifier(netIface.TypeName));
}));
foreach (var funcDecl in proto.AllMethodsNoCDTor())
{
if (funcDecl.IsProperty && !funcDecl.IsSubscript)
{
continue;
}
try {
CompileFunc(funcDecl, proto, iface, use);
} catch (Exception e) {
errors.Add(ErrorHelper.CreateWarning(ReflectorError.kWrappingBase + 14, e, $"Error compiling ObjC protocol method {proto.ToFullyQualifiedName ()}.{funcDecl.Name}"));
}
}
foreach (var propDecl in proto.AllProperties())
{
try {
CompileProp(propDecl, proto, iface, use);
} catch (Exception e) {
errors.Add(ErrorHelper.CreateWarning(ReflectorError.kWrappingBase + 14, e, $"Error compiling ObjC protocol property {proto.ToFullyQualifiedName ()}.{propDecl.Name}"));
}
}
var anyRequired = proto.AllMethodsNoCDTor().Any(func => !func.IsOptional);
if (anyRequired)
{
kAbstractAttribute.AttachBefore(iface);
}
return(iface);
}
public List <ICodeElement> MarshalFromLambdaReceiverToCSFunc(CSType thisType, string csProxyName, CSParameterList delegateParams,
FunctionDeclaration funcDecl, CSType methodType, CSParameterList methodParams, string methodName, bool isObjC)
{
bool thisIsInterface = csProxyName != null;
bool isIndexer = funcDecl.IsSubscript;
bool needsReturn = methodType != null && methodType != CSSimpleType.Void;
bool isSetter = funcDecl.IsSubscriptSetter;
bool returnIsGeneric = funcDecl.IsTypeSpecGeneric(funcDecl.ReturnTypeSpec);
var entity = !returnIsGeneric?typeMapper.GetEntityForTypeSpec(funcDecl.ReturnTypeSpec) : null;
var returnEntity = entity;
var entityType = !returnIsGeneric?typeMapper.GetEntityTypeForTypeSpec(funcDecl.ReturnTypeSpec) : EntityType.None;
bool returnIsStruct = needsReturn && entity != null && entity.IsStructOrEnum;
bool returnIsClass = needsReturn && entity != null && entity.EntityType == EntityType.Class;
bool returnIsProtocol = needsReturn && ((entity != null && entity.EntityType == EntityType.Protocol) || entityType == EntityType.ProtocolList);
bool returnIsTuple = needsReturn && entityType == EntityType.Tuple;
bool returnIsClosure = needsReturn && entityType == EntityType.Closure;
var callParams = new List <CSBaseExpression> ();
var preMarshalCode = new List <CSLine> ();
var postMarshalCode = new List <CSLine> ();
CSBaseExpression valueExpr = null;
bool marshalingThrows = false;
if (isSetter)
{
var valueID = delegateParams [1].Name;
valueExpr = valueID;
var swiftNewValue = funcDecl.ParameterLists [1] [0];
bool newValueIsGeneric = funcDecl.IsTypeSpecGeneric(funcDecl.PropertyType);
entity = !newValueIsGeneric?typeMapper.GetEntityForTypeSpec(swiftNewValue.TypeSpec) : null;
entityType = !newValueIsGeneric?typeMapper.GetEntityTypeForTypeSpec(swiftNewValue.TypeSpec) : EntityType.None;
var isUnusualNewValue = IsUnusualParameter(entity, delegateParams [1]);
if (entityType == EntityType.Class || entity.IsObjCProtocol)
{
var csParmType = new CSSimpleType(entity.SharpNamespace + "." + entity.SharpTypeName);
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 26, "Inconceivable! The class type for a subscript was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
var fullClassName = entity.Type.ToFullyQualifiedName(true);
valueExpr = NewClassCompiler.SafeMarshalClassFromIntPtr(valueID, csParmType, use, fullClassName, typeMapper, entity.IsObjCProtocol);
}
else if (entityType == EntityType.Protocol)
{
var csParmType = new CSSimpleType(entity.SharpNamespace + "." + entity.SharpTypeName);
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 27, "Inconceivable! The protocol type for a subscript was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
valueExpr = new CSFunctionCall($"SwiftObjectRegistry.Registry.InterfaceForExistentialContainer<{csParmType.ToString ()}>", false, valueID);
}
else if ((entityType == EntityType.Struct || entityType == EntityType.Enum) && !isUnusualNewValue)
{
var csParmType = new CSSimpleType(entity.SharpNamespace + "." + entity.SharpTypeName);
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 28, $"Inconceivable! The {entityType} type for a subscript was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify("val", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
CSLine valDecl = CSVariableDeclaration.VarLine(csParmType, valMarshalId,
new CSCastExpression(csParmType, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false, valueID,
csParmType.Typeof())));
preMarshalCode.Add(valDecl);
valueExpr = valMarshalId;
}
else if (entityType == EntityType.Tuple)
{
var csParmType = new CSSimpleType(entity.SharpNamespace + "." + entity.SharpTypeName);
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 29, "Inconceivable! The tuple type for a subscript was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify("val", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
var valDecl = CSVariableDeclaration.VarLine(csParmType, valMarshalId,
new CSCastExpression(csParmType, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false, valueID,
csParmType.Typeof())));
preMarshalCode.Add(valDecl);
valueExpr = valMarshalId;
}
else if (newValueIsGeneric)
{
var depthIndex = funcDecl.GetGenericDepthAndIndex(swiftNewValue.TypeSpec);
var genRef = new CSGenericReferenceType(depthIndex.Item1, depthIndex.Item2);
if (genRef == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 30, "Inconceivable! The generic type for a parameter in a method was NOT a CSGenericReferenceType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify("valTemp", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
var valDecl = CSVariableDeclaration.VarLine(genRef, valMarshalId,
new CSCastExpression(genRef, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false,
valueID, genRef.Typeof())));
preMarshalCode.Add(valDecl);
valueExpr = valMarshalId;
}
}
int j = 0;
int k = isSetter ? 1 : 0;
for (int i = (funcDecl.HasThrows || returnIsStruct || returnIsProtocol || isSetter || returnIsGeneric) ? 2 : 1; i < delegateParams.Count; i++, j++, k++)
{
var swiftParm = funcDecl.ParameterLists [1] [k];
bool parmIsGeneric = funcDecl.IsTypeSpecGeneric(swiftParm);
entity = !parmIsGeneric?typeMapper.GetEntityForTypeSpec(swiftParm.TypeSpec) : null;
entityType = !parmIsGeneric?typeMapper.GetEntityTypeForTypeSpec(swiftParm.TypeSpec) : EntityType.None;
var isUnusualParameter = IsUnusualParameter(entity, delegateParams [i]);
var csParm = methodParams [j];
if (entityType == EntityType.Class || (entity != null && entity.IsObjCProtocol))
{
var csParmType = csParm.CSType as CSSimpleType;
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 31, "Inconceivable! The class type for a method was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
var fullClassName = entity.Type.ToFullyQualifiedName(true);
var retrievecall = NewClassCompiler.SafeMarshalClassFromIntPtr(delegateParams [0].Name, csParmType, use, fullClassName, typeMapper, entity.IsObjCProtocol);
if (csParm.ParameterKind == CSParameterKind.Out || csParm.ParameterKind == CSParameterKind.Ref)
{
string id = MarshalEngine.Uniqueify(delegateParams [i].Name.Name, identifiersUsed);
identifiersUsed.Add(id);
preMarshalCode.Add(CSFieldDeclaration.FieldLine(csParmType, id, retrievecall));
callParams.Add(new CSIdentifier(String.Format("{0} {1}",
csParm.ParameterKind == CSParameterKind.Out ? "out" : "ref", id)));
postMarshalCode.Add(CSAssignment.Assign(delegateParams [i].Name,
NewClassCompiler.SafeBackingFieldAccessor(new CSIdentifier(id), use, entity.Type.ToFullyQualifiedName(true), typeMapper)));
}
else
{
callParams.Add(retrievecall);
}
}
else if (entityType == EntityType.Protocol)
{
var thePtr = new CSIdentifier(MarshalEngine.Uniqueify("p", identifiersUsed));
var csParmType = csParm.CSType as CSSimpleType;
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 32, "Inconceivable! The protocol type for a method was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
string csParmProxyType = NewClassCompiler.CSProxyNameForProtocol(entity.Type.ToFullyQualifiedName(true), typeMapper);
if (csParmProxyType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 33, $"Unable to find C# interface type for protocol {entity.Type.ToFullyQualifiedName ()}");
}
var retrievecall = new CSFunctionCall($"SwiftObjectRegistry.Registry.InterfaceForExistentialContainer<{csParmType.Name}>", false, delegateParams [i].Name);
if (csParm.ParameterKind == CSParameterKind.Out || csParm.ParameterKind == CSParameterKind.Ref)
{
CSIdentifier id = new CSIdentifier(MarshalEngine.Uniqueify(delegateParams [i].Name.Name, identifiersUsed));
identifiersUsed.Add(id.Name);
preMarshalCode.Add(CSFieldDeclaration.FieldLine(csParmType, id.Name, retrievecall));
callParams.Add(new CSIdentifier(String.Format("{0} {1}",
csParm.ParameterKind == CSParameterKind.Out ? "out" : "ref", id)));
postMarshalCode.Add(CSAssignment.Assign(delegateParams [i].Name,
new CSFunctionCall("SwiftExistentialContainer1", true,
new CSFunctionCall("SwiftObjectRegistry.Registry.ExistentialContainerForProtocol", false, id, csParmType.Typeof()))));
}
else
{
callParams.Add(retrievecall);
}
}
else if ((entityType == EntityType.Struct || entityType == EntityType.Enum) && !isUnusualParameter)
{
var csParmType = csParm.CSType as CSSimpleType;
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 34, $"Inconceivable! The {entityType} type for a method was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify(delegateParams [i].Name + "Temp", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
var valDecl = CSVariableDeclaration.VarLine(csParmType, valMarshalId,
new CSCastExpression(csParmType, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false, delegateParams [i].Name,
csParmType.Typeof())));
preMarshalCode.Add(valDecl);
callParams.Add(valMarshalId);
}
else if (entityType == EntityType.Tuple)
{
var csParmType = csParm.CSType as CSSimpleType;
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 35, "Inconceivable! The tuple type for a parameter in a method was NOT a CSSimpleType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify(delegateParams [i].Name + "Temp", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
var valDecl = CSVariableDeclaration.VarLine(csParmType, valMarshalId,
new CSCastExpression(csParmType, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false, delegateParams [i].Name,
csParmType.Typeof())));
preMarshalCode.Add(valDecl);
callParams.Add(valMarshalId);
}
else if (entityType == EntityType.Closure)
{
// parm is a SwiftClosureRepresentation
// (FuncType)StructMarshal.Marshaler.MakeDelegateFromBlindClosure (arg, argTypes, returnType);
var argTypesId = new CSIdentifier(MarshalEngine.Uniqueify("argTypes" + delegateParams [i], identifiersUsed));
identifiersUsed.Add(argTypesId.Name);
var parmType = csParm.CSType as CSSimpleType;
if (parmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 44, "Inconceivable! The type for a closure should be a CSSimpleType");
}
var hasReturn = parmType.GenericTypeName == "Func";
var returnType = hasReturn ? (CSBaseExpression)parmType.GenericTypes [parmType.GenericTypes.Length - 1].Typeof() : CSConstant.Null;
var argTypesLength = hasReturn ? parmType.GenericTypes.Length - 1 : parmType.GenericTypes.Length;
var argTypes = new CSBaseExpression [argTypesLength];
for (int idx = 0; idx < argTypesLength; idx++)
{
argTypes [idx] = parmType.GenericTypes [idx].Typeof();
}
var typeArr = new CSArray1DInitialized(CSSimpleType.Type, argTypes);
var closureExpr = new CSFunctionCall("StructMarshal.Marshaler.MakeDelegateFromBlindClosure", false, delegateParams [i].Name,
typeArr, returnType);
var castTo = new CSCastExpression(csParm.CSType, closureExpr);
callParams.Add(castTo);
}
else if (entityType == EntityType.ProtocolList)
{
preMarshalCode.Add(CSFunctionCall.FunctionCallLine("throw new NotImplementedException", false, CSConstant.Val($"Argument {csParm.Name} is a protocol list type and can't be marshaled from a virtual method.")));
callParams.Add(CSConstant.Null);
marshalingThrows = true;
}
else if (parmIsGeneric)
{
// parm is an IntPtr to some T
// to get T, we ask funcDecl for the depthIndex of T
// T someVal = (T)StructMarshal.Marshaler.ToNet(parm, typeof(T));
// someVal gets passed in
var genRef = csParm.CSType as CSGenericReferenceType;
if (genRef == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 36, "Inconceivable! The generic type for a parameter in a method was NOT a CSGenericReferenceType!");
}
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify(delegateParams [i].Name + "Temp", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
var valDecl = CSVariableDeclaration.VarLine(genRef, valMarshalId,
new CSCastExpression(genRef, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false,
delegateParams [i].Name,
genRef.Typeof())));
preMarshalCode.Add(valDecl);
callParams.Add(valMarshalId);
}
else
{
if (csParm.ParameterKind == CSParameterKind.Out || csParm.ParameterKind == CSParameterKind.Ref)
{
callParams.Add(new CSIdentifier(String.Format("{0} {1}",
csParm.ParameterKind == CSParameterKind.Out ? "out" : "ref", delegateParams [i].Name.Name)));
}
else
{
callParams.Add(delegateParams [i].Name);
}
}
}
var body = new CSCodeBlock();
if (isObjC)
{
use.AddIfNotPresent("ObjCRuntime");
}
else
{
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
}
CSBaseExpression invoker = null;
if (isIndexer)
{
if (thisIsInterface)
{
invoker = new CSIndexExpression(
$"SwiftObjectRegistry.Registry.InterfaceForExistentialContainer<{thisType.ToString ()}> (self)",
false, callParams.ToArray());
}
else
{
var registryCall = isObjC ?
$"Runtime.GetNSObject<{thisType.ToString ()}> (self)" :
$"SwiftObjectRegistry.Registry.CSObjectForSwiftObject <{thisType.ToString ()}> (self)";
invoker = new CSIndexExpression(registryCall, false, callParams.ToArray());
}
}
else
{
if (thisIsInterface)
{
invoker = new CSFunctionCall(
$"SwiftObjectRegistry.Registry.InterfaceForExistentialContainer<{thisType.ToString ()}> (self).{methodName}",
false, callParams.ToArray());
}
else
{
var registryCall = isObjC ?
$"Runtime.GetNSObject<{thisType.ToString ()}>(self).{methodName}" :
$"SwiftObjectRegistry.Registry.CSObjectForSwiftObject <{thisType.ToString ()}> (self).{methodName}";
invoker = new CSFunctionCall(registryCall, false, callParams.ToArray());
}
}
var tryBlock = funcDecl.HasThrows ? new CSCodeBlock() : null;
var catchBlock = funcDecl.HasThrows ? new CSCodeBlock() : null;
var altBody = tryBlock ?? body;
string catchName = MarshalEngine.Uniqueify("e", identifiersUsed);
var catchID = new CSIdentifier(catchName);
altBody.AddRange(preMarshalCode);
if (marshalingThrows)
{
return(altBody);
}
if (funcDecl.HasThrows || needsReturn) // function that returns or getter
{
if (funcDecl.HasThrows)
{
use.AddIfNotPresent(typeof(SwiftError));
use.AddIfNotPresent(typeof(Tuple));
use.AddIfNotPresent(typeof(StructMarshal));
CSType returnTuple = null;
if (needsReturn)
{
returnTuple = new CSSimpleType("Tuple", false,
methodType,
new CSSimpleType(typeof(SwiftError)),
CSSimpleType.Bool);
}
else
{
returnTuple = new CSSimpleType("Tuple", false,
new CSSimpleType(typeof(SwiftError)),
CSSimpleType.Bool);
}
if (needsReturn)
{
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
var retvalId = new CSIdentifier(retvalName);
altBody.Add(CSFieldDeclaration.VarLine(methodType, retvalId, invoker));
postMarshalCode.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.ToSwift", false,
methodType.Typeof(),
retvalId,
delegateParams [0].Name));
altBody.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.SetErrorNotThrown", false,
delegateParams [0].Name, returnTuple.Typeof()));
}
else
{
if (isSetter)
{
altBody.Add(CSAssignment.Assign(invoker, CSAssignmentOperator.Assign, valueExpr));
}
else
{
altBody.Add(new CSLine(invoker));
}
altBody.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.SetErrorNotThrown", false,
delegateParams [0].Name, returnTuple.Typeof()));
}
string swiftError = MarshalEngine.Uniqueify("err", identifiersUsed);
var swiftErrorIdentifier = new CSIdentifier(swiftError);
catchBlock.Add(CSFieldDeclaration.VarLine(new CSSimpleType(typeof(SwiftError)), swiftErrorIdentifier,
new CSFunctionCall("SwiftError.FromException", false, catchID)));
catchBlock.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.SetErrorThrown", false,
delegateParams [0].Name,
swiftErrorIdentifier,
returnTuple.Typeof()));
}
else
{
if (returnIsClass)
{
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
CSIdentifier retvalId = new CSIdentifier(retvalName);
altBody.Add(CSFieldDeclaration.VarLine(methodType, retvalId, invoker));
postMarshalCode.Add(CSReturn.ReturnLine(
NewClassCompiler.SafeBackingFieldAccessor(retvalId, use, returnEntity.Type.ToFullyQualifiedName(), typeMapper)));
}
else if (returnIsProtocol)
{
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
identifiersUsed.Add(retvalName);
var retvalId = new CSIdentifier(retvalName);
altBody.Add(CSFieldDeclaration.VarLine(methodType, retvalId, invoker));
var returnContainer = MarshalEngine.Uniqueify("returnContainer", identifiersUsed);
identifiersUsed.Add(returnContainer);
var returnContainerId = new CSIdentifier(returnContainer);
var protoGetter = new CSFunctionCall($"SwiftObjectRegistry.Registry.ExistentialContainerForProtocols", false, retvalId, methodType.Typeof());
var protoDecl = CSVariableDeclaration.VarLine(CSSimpleType.Var, returnContainerId, protoGetter);
var marshalBack = CSFunctionCall.FunctionCallLine($"{returnContainer}.CopyTo", delegateParams [0].Name);
postMarshalCode.Add(protoDecl);
postMarshalCode.Add(marshalBack);
}
else if (returnIsStruct)
{
// non-blitable means that the parameter is an IntPtr and we can call the
// marshaler to copy into it
use.AddIfNotPresent(typeof(StructMarshal));
var marshalCall = CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.ToSwift", false,
invoker, delegateParams [0].Name);
altBody.Add(marshalCall);
}
else if (returnIsTuple)
{
// non-blitable means that the parameter is an IntPtr and we can call the
// marshaler to copy into it
use.AddIfNotPresent(typeof(StructMarshal));
var marshalCall = CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.ToSwift", false,
invoker, delegateParams [0].Name);
altBody.Add(marshalCall);
}
else if (returnIsGeneric)
{
// T retval = invoker();
// if (retval is ISwiftObject) {
// Marshal.WriteIntPtr(delegateParams [0].Name, ((ISwiftObject)retval).SwiftObject);
// }
// else {
// StructMarshal.Marshaler.ToSwift(typeof(T), retval, delegateParams[0].Name);
// }
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
var retvalId = new CSIdentifier(retvalName);
altBody.Add(CSFieldDeclaration.VarLine(methodType, retvalId, invoker));
var ifClause = new CSCodeBlock();
ifClause.Add(CSFunctionCall.FunctionCallLine("Marshal.WriteIntPtr", false,
delegateParams [0].Name,
new CSParenthesisExpression(new CSCastExpression("ISwiftObject", retvalId)).Dot(NewClassCompiler.kSwiftObjectGetter)));
var elseClause = new CSCodeBlock();
elseClause.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.ToSwift", false,
methodType.Typeof(),
retvalId,
delegateParams [0].Name));
CSBaseExpression ifExpr = new CSSimpleType("ISwiftObject").Typeof().Dot(new CSFunctionCall("IsAssignableFrom", false,
methodType.Typeof()));
var retTest = new CSIfElse(ifExpr, ifClause, elseClause);
altBody.Add(retTest);
}
else
{
if (returnIsClosure)
{
invoker = MarshalEngine.BuildBlindClosureCall(invoker, methodType as CSSimpleType, use);
}
if (postMarshalCode.Count > 0)
{
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
CSIdentifier retvalId = new CSIdentifier(retvalName);
altBody.Add(CSFieldDeclaration.VarLine(methodType, retvalId, invoker));
postMarshalCode.Add(CSReturn.ReturnLine(retvalId));
}
else
{
altBody.Add(CSReturn.ReturnLine(invoker));
}
}
}
}
else // no return or setter
{
if (isSetter)
{
altBody.Add(CSAssignment.Assign(invoker, CSAssignmentOperator.Assign, valueExpr));
}
else
{
altBody.Add(new CSLine(invoker));
}
}
altBody.AddRange(postMarshalCode);
if (funcDecl.HasThrows)
{
body.Add(new CSTryCatch(tryBlock, new CSCatch(typeof(Exception), catchName, catchBlock)));
}
return(body);
}
static CSFile GeneratePInvokesFromTypes(TypeAggregator types, PlatformName platform, string framework)
{
var fileName = Path.GetFileNameWithoutExtension(framework); // /path/XamGlue.framework -> XamGlue
var dylibFile = Path.Combine(framework, fileName);
var funcs = TLFunctionsForFile(dylibFile, platform);
var ns = new CSNamespace("SwiftRuntimeLibrary.SwiftMarshal");
var use = new CSUsingPackages();
use.And(new CSUsing("System.Runtime.InteropServices"))
.And(new CSUsing("System"))
.And(new CSUsing("System.Collections.Generic"))
.And(new CSUsing("SwiftRuntimeLibrary"));
var csFile = new CSFile(use, new CSNamespace [] { ns });
var csClass = new CSClass(CSVisibility.Internal, $"{fileName}Metadata");
new CSComment(kRobotText).AttachBefore(use);
CSConditionalCompilation.If(PlatformToCSCondition(platform)).AttachBefore(use);
CSConditionalCompilation.Endif.AttachAfter(ns);
ns.Block.Add(csClass);
var typeOntoPinvoke = new List <KeyValuePair <CSBaseExpression, CSBaseExpression> > ();
var typesToProcess = new List <TypeDefinition> ();
typesToProcess.AddRange(types.PublicEnums);
typesToProcess.AddRange(types.PublicStructs);
// pre-sort by function name
typesToProcess.Sort((type1, type2) => String.CompareOrdinal(FuncIDForTypeDefinition(type1), FuncIDForTypeDefinition(type2)));
foreach (var type in typesToProcess)
{
if (type.HasGenericParameters)
{
continue;
}
var moduleName = type.Namespace;
var name = type.Name;
if (TypeAggregator.FilterModuleAndName(platform, moduleName, ref name))
{
var pinvoke = PInvokeForType(type, funcs);
if (pinvoke != null)
{
csClass.Methods.Add(pinvoke);
use.AddIfNotPresent(type.Namespace);
var typeOf = new CSSimpleType(type.FullName).Typeof();
var funcName = pinvoke.Name;
typeOntoPinvoke.Add(new KeyValuePair <CSBaseExpression, CSBaseExpression> (typeOf, funcName));
}
}
}
var initializers = typeOntoPinvoke.Select(typeAndFunc => new CSInitializer(new CSBaseExpression [] { typeAndFunc.Key, typeAndFunc.Value }, false));
var bindingExpr = new CSInitializedType(new CSFunctionCall("Dictionary<Type, Func<SwiftMetatype>>", true), new CSInitializer(initializers, true));
var bindingDecl = new CSFieldDeclaration(new CSSimpleType("Dictionary<Type, Func<SwiftMetatype>>"), "ObjCBindingSwiftMetatypes", bindingExpr, CSVisibility.Internal, true);
csClass.Fields.Add(new CSLine(bindingDecl));
use.Sort((package1, package2) => String.CompareOrdinal(package1.Package, package2.Package));
return(csFile);
}
/// <summary>
/// Creates a list of all types, and a hash table which is initialized on first lookup from C# type
/// to Swift types.
/// </summary>
/// <param name="types">Aggregated types, a subset of which are included</param>
/// <param name="platform">Platform targeted (typically iOS or Mac)</param>
/// <param name="namespaces">Namespaces to include</param>
/// <param name="framework">Name of framework used (typically XamGlue)</param>
/// <returns>CSFile which, when written, has function looking up in hash table as described in summary</returns>
static CSFile GenerateCSharpHashTableFromTypes(TypeAggregator types, PlatformName platform, List <string> namespaces, string framework)
{
var fileName = Path.GetFileNameWithoutExtension(framework);
var ns = new CSNamespace("SwiftRuntimeLibrary.SwiftMarshal");
var use = new CSUsingPackages();
use.And(new CSUsing("System.Runtime.InteropServices"))
.And(new CSUsing("System"))
.And(new CSUsing("System.Collections.Generic"))
.And(new CSUsing("SwiftRuntimeLibrary"));
var csFile = new CSFile(use, new CSNamespace [] { ns });
var csClass = new CSClass(CSVisibility.Internal, $"{fileName}Metadata");
new CSComment(kRobotText).AttachBefore(use);
CSConditionalCompilation.If(PlatformToCSCondition(platform)).AttachBefore(use);
CSConditionalCompilation.Endif.AttachAfter(ns);
ns.Block.Add(csClass);
// collect all possible types, filter and sort
var selectedTypes = new List <TypeDefinition> ();
selectedTypes.AddRange(types.PublicEnums);
selectedTypes.AddRange(types.PublicStructs);
selectedTypes = selectedTypes.FindAll(type => IncludeType(type, namespaces, platform));
selectedTypes.Sort((type1, type2) => String.CompareOrdinal(type1.FullName, type2.FullName));
// add used namespaces to import list, sort list
foreach (var type in selectedTypes)
{
use.AddIfNotPresent(type.Namespace);
}
use.Sort((package1, package2) => String.CompareOrdinal(package1.Package, package2.Package));
// create list of types to translate
var typesForList = selectedTypes.Select(type => new CSSimpleType(type.FullName).Typeof());
var listInitializeExpr = new CSInitializedType(
new CSFunctionCall("List<Type>", true),
new CSInitializer(typesForList, true)
);
var listBindingDecl = new CSFieldDeclaration(new CSSimpleType("List<Type>"), "csImportTypes", listInitializeExpr, CSVisibility.Internal, true);
csClass.Fields.Add(new CSLine(listBindingDecl));
// create pinvoke for function
var dylibFile = Path.Combine(framework, fileName);
var funcs = TLFunctionsForFile(dylibFile, platform);
var handleTranslationCode = new CSIdentifier(@"
public static unsafe bool GetSwiftType (Type t, out SwiftMetatype md) {
using (var swiftStr = new SwiftString (t.FullName)) {
return SwiftCore.GetEnumMetadataByName (swiftStr.SwiftData, out md);
}
}
internal static Dictionary<Type, SwiftMetatype> csImportMeta = null;
internal static bool TryGetImportedMetadata (Type cSharpType, out SwiftMetatype md) {
if (csImportMeta == null) {
csImportMeta = new Dictionary<Type, SwiftMetatype> (csImportTypes.Count);
foreach (var t in csImportTypes) {
SwiftMetatype meta;
GetSwiftType(t, out meta);
csImportMeta [t] = meta;
}
}
return csImportMeta.TryGetValue (cSharpType, out md);
}" );
csClass.Fields.Add(new CSLine(handleTranslationCode, false));
return(csFile);
}
public static CSSimpleType ToCSOptional(NetTypeBundle optType, CSUsingPackages use)
{
use.AddIfNotPresent(typeof(SwiftOptional <>));
return(new CSSimpleType("SwiftOptional", false, optType.ToCSType(use)));
}
public CSDelegateTypeDecl CompileToDelegateDeclaration(FunctionDeclaration func, CSUsingPackages packs,
string mangledName, string delegateName, bool objectsAreIntPtrs, CSVisibility vis, bool isSwiftProtocol)
{
bool returnIsGeneric = func.IsTypeSpecGeneric(func.ReturnTypeSpec);
var args = typeMap.MapParameterList(func, func.ParameterLists.Last(), objectsAreIntPtrs, true, null, null);
RemapSwiftClosureRepresensation(args);
var returnType = returnIsGeneric ? null : typeMap.MapType(func, func.ReturnTypeSpec, objectsAreIntPtrs, true);
delegateName = delegateName ?? typeMap.SanitizeIdentifier(func.Name);
args.ForEach(a => AddUsingBlock(packs, a.Type));
if (returnType != null && !returnIsGeneric)
{
AddUsingBlock(packs, returnType);
}
CSType csReturnType = returnType == null || returnType.IsVoid ? CSSimpleType.Void : returnType.ToCSType(packs);
var csParams = new CSParameterList();
for (int i = 0; i < args.Count; i++)
{
var arg = args [i];
var argIsGeneric = func.IsTypeSpecGeneric(func.ParameterLists.Last() [i].TypeSpec);
CSParameter csParam = null;
var parmType = func.ParameterLists.Last() [i].TypeSpec;
if (arg.Type.Entity == EntityType.Tuple || (!argIsGeneric && IsObjCStruct(parmType)))
{
csParam = new CSParameter(CSSimpleType.IntPtr, new CSIdentifier(arg.Name), CSParameterKind.None, null);
}
else
{
csParam = new CSParameter(arg.Type.ToCSType(packs), new CSIdentifier(arg.Name),
arg.Type.IsReference ? CSParameterKind.Ref : CSParameterKind.None, null);
}
csParams.Add(csParam);
}
if (isSwiftProtocol)
{
packs.AddIfNotPresent(typeof(SwiftExistentialContainer1));
csParams.Insert(0, new CSParameter(new CSSimpleType(typeof(SwiftExistentialContainer1)), new CSIdentifier("self"), CSParameterKind.Ref));
}
else
{
csParams.Insert(0, new CSParameter(CSSimpleType.IntPtr, new CSIdentifier("self")));
}
var retvalName = "xam_retval";
var retvalID = new CSIdentifier(retvalName);
if (func.HasThrows || returnIsGeneric || !returnType.IsVoid) // && func.Signature.ReturnType.IsStruct || func.Signature.ReturnType.IsEnum) {
{
if (func.HasThrows)
{
csParams.Insert(0, new CSParameter(CSSimpleType.IntPtr, retvalName, CSParameterKind.None));
csReturnType = CSSimpleType.Void;
}
else
{
if (!returnIsGeneric)
{
if (!(func.ReturnTypeSpec is ClosureTypeSpec))
{
Entity ent = typeMap.GetEntityForTypeSpec(func.ReturnTypeSpec);
if (ent == null && !(func.ReturnTypeSpec is ProtocolListTypeSpec))
{
throw ErrorHelper.CreateError(ReflectorError.kCompilerBase + 8, $"Unable to find entity for class {csReturnType.ToString ()}.");
}
if (ent != null && (ent.IsStructOrEnum || ent.EntityType == EntityType.Protocol))
{
csParams.Insert(0, new CSParameter(CSSimpleType.IntPtr, retvalID, CSParameterKind.None));
csReturnType = CSSimpleType.Void;
}
else if (func.ReturnTypeSpec is ProtocolListTypeSpec pl)
{
csParams.Insert(0, new CSParameter(new CSSimpleType($"SwiftExistentialContainer{pl.Protocols.Count}"), retvalID, CSParameterKind.Ref));
csReturnType = CSSimpleType.Void;
}
}
}
else
{
csParams.Insert(0, new CSParameter(CSSimpleType.IntPtr, retvalID, CSParameterKind.None));
}
}
}
return(new CSDelegateTypeDecl(vis, csReturnType, new CSIdentifier(delegateName), csParams));
}