public void TestCharacterConstructors()
{
var swiftCode = @"public func Echo (c: Character) -> Character { return c; }";
var callingCode = new CodeElementCollection <ICodeElement> ();
StringBuilder expected = new StringBuilder();
foreach (string c in TestCases)
{
CSIdentifier testIdentifier = (CSIdentifier)$@"""{c}""";
var ctorCall = CSFunctionCall.Ctor("SwiftCharacter", testIdentifier);
var fromCall = CSFunctionCall.Function("SwiftCharacter.FromCharacter", testIdentifier);
var implicitCall = new CSCastExpression((CSSimpleType)"SwiftCharacter", testIdentifier);
foreach (var call in new CSBaseExpression [] { ctorCall, fromCall, implicitCall })
{
CSLine print = CSFunctionCall.FunctionLine("Console.Write", CSFunctionCall.Function("TopLevelEntities.Echo", call));
callingCode.Add(print);
expected.Append(c);
}
}
TestRunning.TestAndExecute(swiftCode, callingCode, expected.ToString());
}
public void TestCharacterReturns()
{
var swiftCode = @"
public class CharacterEcho
{
var C : Character;
public init (c : Character) { C = c }
public func GetValue () -> Character { return C }
public var Value : Character { get { return C; } }
}";
var callingCode = new CodeElementCollection <ICodeElement> ();
StringBuilder expected = new StringBuilder();
foreach (string c in TestCases)
{
CSIdentifier testIdentifier = (CSIdentifier)$@"""{c}""";
CSCodeBlock block = new CSCodeBlock();
var ctorParam = new CSCastExpression((CSSimpleType)"SwiftCharacter", testIdentifier);
CSLine instance = CSVariableDeclaration.VarLine((CSSimpleType)"CharacterEcho", (CSIdentifier)"Foo", CSFunctionCall.Ctor("CharacterEcho", ctorParam));
// First the properties
var explicitCastProp = (CSIdentifier)"(string)Foo.Value";
var toStringProp = (CSIdentifier)"Foo.Value.ToString ()";
// Then the function returns as well
var explicitCastFun = (CSIdentifier)"(string)Foo.GetValue ()";
var toStringFun = (CSIdentifier)"Foo.GetValue ().ToString ()";
block.Add(instance);
foreach (var call in new CSBaseExpression [] { explicitCastProp, toStringProp, explicitCastFun, toStringFun })
{
CSLine print = CSFunctionCall.FunctionLine("Console.Write", call);
block.Add(print);
expected.Append(c);
}
callingCode.Add(block);
}
TestRunning.TestAndExecute(swiftCode, callingCode, expected.ToString());
}
public List <ICodeElement> MarshalFromLambdaReceiverToCSProp(CSProperty prop, CSType thisType, string csProxyName, CSParameterList delegateParams,
FunctionDeclaration funcDecl, CSType methodType, bool isObjC)
{
bool forProtocol = csProxyName != null;
bool needsReturn = funcDecl.IsGetter;
bool returnIsGeneric = funcDecl.IsTypeSpecGeneric(funcDecl.ReturnTypeSpec);
var entity = !returnIsGeneric?typeMapper.GetEntityForTypeSpec(funcDecl.ReturnTypeSpec) : null;
var entityType = !returnIsGeneric?typeMapper.GetEntityTypeForTypeSpec(funcDecl.ReturnTypeSpec) : EntityType.None;
bool returnIsStructOrEnum = needsReturn && entity != null && entity.IsStructOrEnum;
bool returnIsClass = needsReturn && entity != null && entity.EntityType == EntityType.Class;
bool returnIsProtocol = needsReturn && entity != null && entity.EntityType == EntityType.Protocol;
bool returnIsProtocolList = needsReturn && entityType == EntityType.ProtocolList;
bool returnIsTuple = needsReturn && entityType == EntityType.Tuple;
bool returnIsClosure = needsReturn && entityType == EntityType.Closure;
string returnCsProxyName = returnIsProtocol ?
NewClassCompiler.CSProxyNameForProtocol(entity.Type.ToFullyQualifiedName(true), typeMapper) : null;
if (returnIsProtocol && returnCsProxyName == null)
{
throw ErrorHelper.CreateError(ReflectorError.kCompilerReferenceBase + 22, $"Unable to find C# interface for protocol {entity.Type.ToFullyQualifiedName ()}");
}
var body = new List <ICodeElement> ();
if (isObjC)
{
use.AddIfNotPresent("ObjCRuntime");
}
else
{
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
}
CSIdentifier csharpCall = null;
if (forProtocol)
{
csharpCall = new CSIdentifier($"SwiftObjectRegistry.Registry.InterfaceForExistentialContainer<{thisType.ToString()}> (self).{prop.Name.Name}");
}
else
{
var call = isObjC ?
$"ObjCRuntime.Runtime.GetNSObject<{thisType.ToString ()}> (self).{prop.Name.Name}" :
$"SwiftObjectRegistry.Registry.CSObjectForSwiftObject<{thisType.ToString ()}> (self).{prop.Name.Name}";
csharpCall = new CSIdentifier(call);
}
if (funcDecl.IsGetter)
{
if (returnIsClass)
{
if (isObjC)
{
body.Add(CSReturn.ReturnLine(csharpCall.Dot(new CSIdentifier("Handle"))));
}
else
{
body.Add(CSReturn.ReturnLine(csharpCall.Dot(NewClassCompiler.kSwiftObjectGetter)));
}
}
else if (returnIsStructOrEnum || returnIsTuple || returnIsGeneric)
{
use.AddIfNotPresent(typeof(StructMarshal));
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
var retvalId = new CSIdentifier(retvalName);
body.Add(CSFieldDeclaration.VarLine(methodType, retvalId, csharpCall));
if (returnIsGeneric)
{
body.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.ToSwift", false,
methodType.Typeof(), retvalId, delegateParams [0].Name));
}
else
{
body.Add(CSFunctionCall.FunctionCallLine("StructMarshal.Marshaler.ToSwift", false,
retvalId, delegateParams [0].Name));
}
}
else if (returnIsProtocol)
{
string retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
identifiersUsed.Add(retvalName);
var retvalId = new CSIdentifier(retvalName);
body.Add(CSFieldDeclaration.VarLine(methodType, retvalId, csharpCall));
var protocolMaker = new CSFunctionCall("SwiftExistentialContainer1", true,
new CSFunctionCall("SwiftObjectRegistry.Registry.ExistentialContainerForProtocols", false, retvalId, methodType.Typeof()));
body.Add(CSReturn.ReturnLine(protocolMaker));
}
else if (returnIsProtocolList)
{
var protoTypeOf = new List <CSBaseExpression> ();
var swiftProtoList = funcDecl.ReturnTypeSpec as ProtocolListTypeSpec;
foreach (var swiftProto in swiftProtoList.Protocols.Keys)
{
protoTypeOf.Add(typeMapper.MapType(funcDecl, swiftProto, false).ToCSType(use).Typeof());
}
var callExprs = new List <CSBaseExpression> ();
callExprs.Add(csharpCall);
callExprs.AddRange(protoTypeOf);
var retvalName = MarshalEngine.Uniqueify("retval", identifiersUsed);
identifiersUsed.Add(retvalName);
var retvalId = new CSIdentifier(retvalName);
body.Add(CSVariableDeclaration.VarLine(methodType, retvalId, new CSFunctionCall("StructMarshal.ThrowIfNotImplementsAll", false, callExprs.ToArray())));
var containerExprs = new List <CSBaseExpression> ();
containerExprs.Add(retvalId);
containerExprs.AddRange(protoTypeOf);
var returnContainerName = MarshalEngine.Uniqueify("returnContainer", identifiersUsed);
identifiersUsed.Add(returnContainerName);
var returnContainerId = new CSIdentifier(returnContainerName);
body.Add(CSVariableDeclaration.VarLine(CSSimpleType.Var, returnContainerId, new CSFunctionCall("SwiftObjectRegistry.Registry.ExistentialContainerForProtocols", false, containerExprs.ToArray())));
body.Add(CSFunctionCall.FunctionCallLine($"{returnContainerName}.CopyTo", false, new CSUnaryExpression(CSUnaryOperator.Ref, delegateParams [0].Name)));
}
else
{
if (returnIsClosure)
{
body.Add(CSReturn.ReturnLine(MarshalEngine.BuildBlindClosureCall(csharpCall, methodType as CSSimpleType, use)));
}
else
{
body.Add(CSReturn.ReturnLine(csharpCall));
}
}
}
else
{
CSBaseExpression valueExpr = null;
bool valueIsGeneric = funcDecl.IsTypeSpecGeneric(funcDecl.ParameterLists [1] [0].TypeSpec);
entity = !valueIsGeneric?typeMapper.GetEntityForTypeSpec(funcDecl.ParameterLists [1] [0].TypeSpec) : null;
entityType = !valueIsGeneric?typeMapper.GetEntityTypeForTypeSpec(funcDecl.ParameterLists [1] [0].TypeSpec) : EntityType.None;
var isUnusualNewValue = IsUnusualParameter(entity, delegateParams [1]);
if (entityType == EntityType.Class || (entity != null && entity.IsObjCProtocol))
{
var csParmType = delegateParams [1].CSType as CSSimpleType;
if (csParmType == null)
{
throw ErrorHelper.CreateError(ReflectorError.kTypeMapBase + 42, "Inconceivable! The class type for a method was a CSSimpleType!");
}
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
var fullClassName = entity.Type.ToFullyQualifiedName(true);
var retrievecall = NewClassCompiler.SafeMarshalClassFromIntPtr(delegateParams [1].Name, csParmType, use, fullClassName, typeMapper, entity.IsObjCProtocol);
valueExpr = retrievecall;
}
else if (entityType == EntityType.Protocol)
{
use.AddIfNotPresent(typeof(SwiftObjectRegistry));
var retrievecall = new CSFunctionCall($"SwiftObjectRegistry.Registry.InterfaceForExistentialContainer<{thisType.ToString ()}> (self).{prop.Name.Name}", false);
valueExpr = retrievecall;
}
else if (entityType == EntityType.Tuple || (entity != null && entity.IsStructOrEnum && !isUnusualNewValue))
{
var ntb = typeMapper.MapType(funcDecl, funcDecl.ParameterLists [1] [0].TypeSpec, false);
var valType = ntb.ToCSType(use);
if (entityType == EntityType.TrivialEnum)
{
valueExpr = new CSCastExpression(valType, new CSCastExpression(CSSimpleType.Long, delegateParams [1].Name));
}
else
{
var marshalCall = new CSFunctionCall("StructMarshal.Marshaler.ToNet", false, delegateParams [1].Name, valType.Typeof());
valueExpr = new CSCastExpression(valType, marshalCall);
}
}
else if (valueIsGeneric)
{
// T someVal = (T)StructMarshal.Marshaler.ToNet(parm, typeof(T));
// someVal gets passed in
var depthIndex = funcDecl.GetGenericDepthAndIndex(funcDecl.ParameterLists [1] [0].TypeSpec);
var genRef = new CSGenericReferenceType(depthIndex.Item1, depthIndex.Item2);
use.AddIfNotPresent(typeof(StructMarshal));
string valMarshalName = MarshalEngine.Uniqueify(delegateParams [1].Name + "Temp", identifiersUsed);
var valMarshalId = new CSIdentifier(valMarshalName);
var valDecl = CSVariableDeclaration.VarLine(genRef, valMarshalId,
new CSCastExpression(genRef, new CSFunctionCall("StructMarshal.Marshaler.ToNet", false,
delegateParams [1].Name,
genRef.Typeof())));
body.Add(valDecl);
valueExpr = valMarshalId;
}
else
{
if (entityType == EntityType.Closure)
{
valueExpr = MarshalEngine.BuildWrappedClosureCall(delegateParams [1].Name, methodType as CSSimpleType);
}
else
{
valueExpr = delegateParams [1].Name;
}
}
body.Add(CSAssignment.Assign(csharpCall, valueExpr));
}
return(body);
}
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);
}