public void SimpleProtocolProGetSetIndexer ()
{
var swiftCode = @"
public protocol Simplest5 {
associatedtype Item
subscript (index: Int) -> Item {
get set
}
}
public func doSetIt<T:Simplest5> (a: inout T, i: Int, v: T.Item) {
a[i] = v
}
";
var altClass = new CSClass (CSVisibility.Public, "Simple5Impl");
altClass.Inheritance.Add (new CSIdentifier ("ISimplest5<SwiftString>"));
var fieldName = new CSIdentifier ("v");
altClass.Fields.Add (CSFieldDeclaration.FieldLine (new CSSimpleType ("SwiftString"), fieldName));
var getBlock = CSCodeBlock.Create (CSReturn.ReturnLine (fieldName));
var setBlock = CSCodeBlock.Create (CSAssignment.Assign (fieldName, new CSIdentifier ("value")));
var parameters = new CSParameterList (new CSParameter (new CSSimpleType ("nint"), new CSIdentifier ("index")));
var thingIndex = new CSProperty (new CSSimpleType ("SwiftString"), CSMethodKind.None,
CSVisibility.Public, getBlock, CSVisibility.Public, setBlock, parameters);
altClass.Properties.Add (thingIndex);
var ctor = new CSMethod (CSVisibility.Public, CSMethodKind.None, null, altClass.Name, new CSParameterList (), CSCodeBlock.Create ());
altClass.Methods.Add (ctor);
var instID = new CSIdentifier ("inst");
var instDecl = CSVariableDeclaration.VarLine (instID, new CSFunctionCall ("Simple5Impl", true));
var callSetter = CSFunctionCall.FunctionCallLine ("TopLevelEntities.DoSetIt", false, instID, CSConstant.Val (3), new CSFunctionCall ("SwiftString.FromString", false, CSConstant.Val ("Got here!")));
var printer = CSFunctionCall.ConsoleWriteLine (new CSIdentifier ($"{instID.Name}[3]"));
var callingCode = CSCodeBlock.Create (instDecl, callSetter, printer);
TestRunning.TestAndExecute (swiftCode, callingCode, "Got here!\n", otherClass: altClass, platform: PlatformName.macOS);
}
public void VirtualOpenPropStruct(PlatformName platform)
{
string swiftCode =
$"import Foundation\nopen class AnotherOpenVirtualClass{platform} {{\n\tpublic init () {{ }}\n\topen var OSVersion = OperatingSystemVersion (majorVersion: 1, minorVersion:2, patchVersion: 3)\n}}\n";
// var cl = new AnotherVirtualClass ();
// var vers = cl.OSVersion;
// Console.WriteLine(vers);
// vers.Major = 5;
// cl.OSVersion = vers;
// vers = cl.OSVersion;
// Console.WriteLine(vers);
var versID = new CSIdentifier("vers");
var clID = new CSIdentifier("cl");
var osverExpr = clID.Dot(new CSIdentifier("OSVersion"));
var clDecl = CSVariableDeclaration.VarLine(CSSimpleType.Var, clID, new CSFunctionCall($"AnotherOpenVirtualClass{platform}", true));
var versDecl = CSVariableDeclaration.VarLine(CSSimpleType.Var, versID, osverExpr);
var printer = CSFunctionCall.ConsoleWriteLine(versID);
var setMajor = CSAssignment.Assign(versID.Dot(new CSIdentifier("Major")), CSConstant.Val(5));
var setOSVer = CSAssignment.Assign(osverExpr, versID);
var resetVer = CSAssignment.Assign(versID, osverExpr);
var callingCode = CSCodeBlock.Create(clDecl, versDecl, printer, setMajor, setOSVer, resetVer, printer);
TestRunning.TestAndExecute(swiftCode, callingCode, "1.2.3\n5.2.3\n", platform: platform);
}
void WrapSubscriptGetSetOnly(string type, string csType, string csVal, string swiftReplacement, string expected)
{
string swiftCode =
TestRunningCodeGenerator.kSwiftFileWriter +
$"public protocol MontyWSubSGO{type} {{ subscript(i:Int32) -> {type} {{ get set }}\n }}\n" +
$"public class TestMontyWSubSGO{type} {{\npublic init() {{ }}\npublic func doIt(m:MontyWSubSGO{type}) {{\nvar x = m\nvar s = \"\", t = \"\"\nprint(x[0], to:&s)\nx[0] = {swiftReplacement}\nprint(x[0], to:&t)\nwriteToFile(s + t, \"WrapSubscriptGetSetOnly{type}\")\n}}\n}}\n";
CSClass overCS = new CSClass(CSVisibility.Public, $"OverWSubSGO{type}");
overCS.Inheritance.Add(new CSIdentifier($"IMontyWSubSGO{type}"));
overCS.Fields.Add(new CSLine(new CSFieldDeclaration(new CSSimpleType(csType), new CSIdentifier("_x"), new CSIdentifier(csVal))));
CSParameterList overParams = new CSParameterList();
overParams.Add(new CSParameter(CSSimpleType.Int, "i"));
CSCodeBlock getBody = CSCodeBlock.Create(CSReturn.ReturnLine((CSIdentifier)"_x"));
CSCodeBlock setBody = CSCodeBlock.Create(CSAssignment.Assign("_x", (CSIdentifier)"value"));
CSProperty overProp = new CSProperty(new CSSimpleType(csType), CSMethodKind.None, CSVisibility.Public,
getBody, CSVisibility.Public, setBody, overParams);
overCS.Properties.Add(overProp);
CSLine decl = CSVariableDeclaration.VarLine(new CSSimpleType($"OverWSubSGO{type}"), "myOver", new CSFunctionCall($"OverWSubSGO{type}", true));
CSLine decl1 = CSVariableDeclaration.VarLine(new CSSimpleType($"TestMontyWSubSGO{type}"), "tester", new CSFunctionCall($"TestMontyWSubSGO{type}", true));
CSLine invoker = CSFunctionCall.FunctionCallLine("tester.DoIt", false, new CSIdentifier("myOver"));
CSCodeBlock callingCode = CSCodeBlock.Create(decl, decl1, invoker);
TestRunning.TestAndExecute(swiftCode, callingCode, expected, testName: $"WrapSubscriptGetSetOnly{type}", otherClass: overCS);
}
public void WrapSingleGetSetSubscript3()
{
string swiftCode = $"public struct FooWSGSub3 {{ public let X:Int\npublic init(i:Int) {{ X = i\n }} }}\n public class MontyWSGSub3 {{ public init() {{}}\n private var _x:FooWSGSub3 = FooWSGSub3(i:42);\npublic subscript(i:Int32) -> FooWSGSub3 {{\nget {{ return _x\n}}\nset {{ _x = newValue\n}} }} }}";
CSLine decl = CSVariableDeclaration.VarLine(new CSSimpleType("MontyWSGSub3"), "monty", new CSFunctionCall("MontyWSGSub3", true));
CSLine invoker = CSFunctionCall.ConsoleWriteLine((CSIdentifier)"monty[0].X");
CSLine setter = CSAssignment.Assign("monty[0]", new CSFunctionCall("FooWSGSub3", true, CSConstant.Val(37L)));
CSCodeBlock callingCode = CSCodeBlock.Create(decl, invoker, setter, invoker);
TestRunning.TestAndExecute(swiftCode, callingCode, "42\n37\n");
}
void WrapSingleGetSetSubscript1(string type, string returnVal, string csType, string csReplacement, string expected)
{
string swiftCode = $"public class MontyWSGSSub1{type} {{ public init() {{}}\n private var _x:{type} = {returnVal}\npublic subscript(i:Int32) -> {type} {{\nget {{ return _x\n}}\nset {{ _x = newValue\n}} }} }}";
CSLine decl = CSVariableDeclaration.VarLine(new CSSimpleType($"MontyWSGSSub1{type}"), "monty", new CSFunctionCall($"MontyWSGSSub1{type}", true));
CSLine invoker = CSFunctionCall.ConsoleWriteLine((CSIdentifier)"monty[0]");
CSLine setter = CSAssignment.Assign("monty[0]", new CSIdentifier(csReplacement));
CSCodeBlock callingCode = CSCodeBlock.Create(decl, invoker, setter, invoker);
TestRunning.TestAndExecute(swiftCode, callingCode, expected, testName: $"WrapSingleGetSetSubscript1{type}");
}
void WrapSingleGetSetProperty(string type, string returnVal, string csType, string csReplacement, string expectedOutput)
{
string appendage = type.Replace('.', '_');
var swiftCode = String.Format("public class Monty {{ public init() {{}}\n private var _x:{0} = {1}\npublic var val: {0} {{\nget {{ return _x\n}}\nset {{ _x = newValue\n}} }} }}", type, returnVal);
var decl = CSVariableDeclaration.VarLine(new CSSimpleType("Monty"), "monty", new CSFunctionCall("Monty", true));
var invoker = CSFunctionCall.ConsoleWriteLine(new CSIdentifier("monty.Val"));
var setter = CSAssignment.Assign("monty.Val", new CSIdentifier(csReplacement));
var callingCode = CSCodeBlock.Create(decl, invoker, setter, invoker);
TestRunning.TestAndExecute(swiftCode, callingCode, expectedOutput, testName: $"WrapSingleProperty{appendage}");
}
public void TestIdentityPointer(string tag)
{
var swiftCode = $"public func identityPointer(p: {tag}) -> {tag} {{\n return p\n }}";
var ptrID = new CSIdentifier("ptr");
var ptrDecl = CSVariableDeclaration.VarLine(CSSimpleType.Var, ptrID,
new CSCastExpression(new CSSimpleType(tag), new CSFunctionCall("IntPtr", true, CSConstant.Val(0x01020304))));
var assign = CSAssignment.Assign(ptrID, new CSFunctionCall("TopLevelEntities.IdentityPointer", false, ptrID));
var printer = CSFunctionCall.ConsoleWriteLine(new CSCastExpression(CSSimpleType.IntPtr, ptrID));
var callingCode = CSCodeBlock.Create(ptrDecl, assign, printer);
TestRunning.TestAndExecute(swiftCode, callingCode, "16909060\n", testName: "IdentityPointer" + tag);
}
void WrapSingleProperty(string type, string returnVal, string reassignVal, string expected)
{
string swiftCode = String.Format("public final class MontyWSP{2} {{ public init() {{ }}\npublic var val:{0} = {1}; }}",
type, returnVal, type);
CodeElementCollection <ICodeElement> callingCode = new CodeElementCollection <ICodeElement> {
CSAssignment.Assign("var nothing", CSFunctionCall.Ctor($"MontyWSP{type}")),
CSFunctionCall.ConsoleWriteLine(CSIdentifier.Create("nothing").Dot((CSIdentifier)"Val")),
CSAssignment.Assign("nothing.Val", new CSConstant(reassignVal)),
CSFunctionCall.ConsoleWriteLine(CSIdentifier.Create("nothing").Dot((CSIdentifier)"Val"))
};
TestRunning.TestAndExecute(swiftCode, callingCode, expected, testName: $"WrapSingleProperty{type}");
}
public void WrapClassReturningClass()
{
string classOne = "public final class GarbleWCRC { public init() { }\npublic func success() { var s = \"\"\n print(\"success\", to:&s)\nwriteToFile(s, \"WrapClassReturningClass\")\n } }\n";
string classTwo = "public final class MontyWCRC { public init() { }\npublic func doIt() -> GarbleWCRC { return GarbleWCRC(); } }";
string swiftCode = TestRunningCodeGenerator.kSwiftFileWriter + classOne + classTwo;
CodeElementCollection <ICodeElement> callingCode = new CodeElementCollection <ICodeElement> ();
callingCode.Add(CSAssignment.Assign("var monty", new CSFunctionCall("MontyWCRC", true)));
callingCode.Add(CSAssignment.Assign("var garb", new CSFunctionCall("monty.DoIt", false)));
callingCode.Add(CSFunctionCall.FunctionCallLine("garb.Success", false));
TestRunning.TestAndExecute(swiftCode, callingCode, "success\n");
}
public void TestClosureSimpleProp()
{
var swiftCode = @"
open class ClosureSimpleProp {
public init () { }
open var x: ()->() = { () in }
}
";
var declID = new CSIdentifier("cl");
var decl = CSVariableDeclaration.VarLine(CSSimpleType.Var, declID, new CSFunctionCall("ClosureSimpleProp", true));
var setter = CSAssignment.Assign($"{declID}.X", new CSIdentifier("() => { Console.WriteLine (\"here\"); }"));
var execIt = CSFunctionCall.FunctionCallLine($"{declID}.X");
var callingCode = CSCodeBlock.Create(decl, setter, execIt);
TestRunning.TestAndExecute(swiftCode, callingCode, "here\n", platform: PlatformName.macOS);
}
void MakeHandler(CSClass cl, string name, string propName)
{
CSSimpleType evtType = new CSSimpleType(typeof(EventArgs));
CSProperty prop = CSProperty.PublicGetSet(evtType, propName);
cl.Properties.Add(prop);
CSParameterList pl = new CSParameterList();
pl.Add(new CSParameter(CSSimpleType.Object, "sender"));
pl.Add(new CSParameter(evtType, "args"));
CSCodeBlock body = new CSCodeBlock();
body.Add(CSAssignment.Assign(propName, CSAssignmentOperator.Assign, new CSIdentifier("args")));
CSMethod meth = new CSMethod(CSVisibility.Public, CSMethodKind.None,
CSSimpleType.Void, new CSIdentifier(name), pl, body);
cl.Methods.Add(meth);
}
public void ComputedPropertyTestString()
{
string swiftCode = @"private var _backingField: String = """"
public var DoubleStr: String {
get {
return _backingField
}
set {
_backingField = newValue + newValue
}
}
";
var setterCall = CSAssignment.Assign(new CSIdentifier("TopLevelEntities").Dot(new CSIdentifier("DoubleStr")), new CSFunctionCall("SwiftString.FromString", false, CSConstant.Val("nothing")));
var printer = CSFunctionCall.ConsoleWriteLine(new CSIdentifier("TopLevelEntities").Dot(new CSIdentifier("DoubleStr")));
var callingCode = CSCodeBlock.Create(setterCall, printer);
TestRunning.TestAndExecute(swiftCode, callingCode, "nothingnothing\n");
}
public void ComputedPropertyTestInt()
{
string swiftCode = @"public var X: Int = 0
public var DoubleX: Int {
get {
return X * 2
}
set {
X = newValue / 2
}
}
";
var setterCall = CSAssignment.Assign(new CSIdentifier("TopLevelEntities").Dot(new CSIdentifier("DoubleX")), CSConstant.Val(8));
var printer = CSFunctionCall.ConsoleWriteLine(new CSIdentifier("TopLevelEntities").Dot(new CSIdentifier("X")));
var callingCode = CSCodeBlock.Create(setterCall, printer);
TestRunning.TestAndExecute(swiftCode, callingCode, "4\n");
}
public void HashSimpleTest()
{
var swiftCode = @"public func hashNoOp () { }";
var hashId = new CSIdentifier("hash");
var bytesId = new CSIdentifier("bytes");
var hashInit = new CSFunctionCall("SwiftHasher", true);
var hashDecl = CSVariableDeclaration.VarLine(CSSimpleType.Var, hashId, hashInit);
var bytesDecl = CSVariableDeclaration.VarLine(CSSimpleType.Var, bytesId, new CSIdentifier("new byte[] { 0, 1, 2, 3, 4 }"));
var hashCall = CSFunctionCall.FunctionCallLine($"{hashId.Name}.Combine", false, bytesId);
var finalizeCall = new CSFunctionCall($"{hashId}.FinalizeHasher", false);
var hashValue0Id = new CSIdentifier("hashValue0");
var hashValue1Id = new CSIdentifier("hashValue1");
var hashValue0Decl = CSVariableDeclaration.VarLine(CSSimpleType.Var, hashValue0Id, finalizeCall);
var reInitLine = CSAssignment.Assign(hashId, hashInit);
var hashValue1Decl = CSVariableDeclaration.VarLine(CSSimpleType.Var, hashValue1Id, finalizeCall);
var printer = CSFunctionCall.ConsoleWriteLine(hashValue0Id == hashValue1Id);
var callingCode = CSCodeBlock.Create(hashDecl, bytesDecl, hashCall, hashValue0Decl, reInitLine, hashCall, hashValue1Decl, printer);
// this mess should generate:
// var hash = new SwiftHasher ();
// var bytes = new byte [] { 0, 1, 2, 3, 4 };
// hash.Combine (bytes);
// var hashValue0 = hash.Finalize0 ();
// hash = new SwiftHasher ();
// hash.Combine (bytes);
// var hashValue1 = hash.Finalize0 ();
// Console.WriteLine (hashValue0 == hashValue1);
// this is essentially asserting that the hashvalue of the same byte array will be the same
// when rehashed. This condition is invariant within process invocations in swift although
// it may be different across different process invocations (in other words, Hasher seeds
// using some process-specific value that may change run to run).
TestRunning.TestAndExecute(swiftCode, callingCode, "True\n");
}
void WrapGenFieldGetSet(string cstype, string val1, string val2, string expected)
{
string swiftCode =
$"public struct BarWGFGS{cstype} {{\npublic var X:Int32 = 0;\npublic init(x:Int32) {{\n X = x;\n}}\n}}\n" +
$"public struct FooWGFGS{cstype}<T> {{\npublic var x:T\npublic init(a:T) {{\nx = a\n }}\n}}\n";
CSSimpleType fooType = new CSSimpleType($"FooWGFGS{cstype}", false, cstype);
CSLine fooDecl = CSVariableDeclaration.VarLine(new CSSimpleType($"FooWGFGS{cstype}", false,
new CSSimpleType(cstype)),
"foo", new CSFunctionCall(fooType.ToString(),
true, new CSIdentifier(val1)));
CSLine printer = CSFunctionCall.ConsoleWriteLine((CSIdentifier)"foo.X");
CSLine setter = CSAssignment.Assign("foo.X", CSAssignmentOperator.Assign, new CSIdentifier(val2));
CSCodeBlock callingCode = CSCodeBlock.Create(fooDecl, printer, setter, printer);
TestRunning.TestAndExecute(swiftCode, callingCode, expected, testName: $"WrapGenFieldGetSet{cstype}");
}
void WrapSinglePropertyGetSetOnly(string type, string csType, string csVal, string swiftReplacement, string expected)
{
string swiftCode =
TestRunningCodeGenerator.kSwiftFileWriter +
$"public protocol MontyWSPGSO{type} {{ var prop : {type} {{ get set }} \n }}\n" +
$"public class TestMontyWSPGSO{type} {{\npublic init() {{ }}\npublic func doIt(m:MontyWSPGSO{type}) {{\nvar x = m\nvar s = \"\", t = \"\"\nprint(x.prop, to:&s)\nx.prop = {swiftReplacement}\nprint(x.prop, to:&t)\nwriteToFile(s + t, \"WrapSinglePropertyGetSetOnly{type}\")\n}}\n}}\n";
CSClass overCS = new CSClass(CSVisibility.Public, $"OverWSPGSO{type}");
overCS.Inheritance.Add(new CSIdentifier($"IMontyWSPGSO{type}"));
CSProperty overProp = new CSProperty(new CSSimpleType(csType), CSMethodKind.None, new CSIdentifier("Prop"),
CSVisibility.Public, new CSCodeBlock(), CSVisibility.Public, new CSCodeBlock());
overCS.Properties.Add(overProp);
CSLine decl = CSVariableDeclaration.VarLine(new CSSimpleType($"OverWSPGSO{type}"), "myOver", new CSFunctionCall($"OverWSPGSO{type}", true));
CSLine decl1 = CSVariableDeclaration.VarLine(new CSSimpleType($"TestMontyWSPGSO{type}"), "tester", new CSFunctionCall($"TestMontyWSPGSO{type}", true));
CSLine initer = CSAssignment.Assign("myOver.Prop", new CSIdentifier(csVal));
CSLine invoker = CSFunctionCall.FunctionCallLine("tester.DoIt", false, new CSIdentifier("myOver"));
CSCodeBlock callingCode = CSCodeBlock.Create(decl, decl1, initer, invoker);
TestRunning.TestAndExecute(swiftCode, callingCode, expected, testName: $"WrapSinglePropertyGetSetOnly{type}", otherClass: overCS, platform: PlatformName.macOS);
}
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);
}
public static CSNamespace CreateManagedConsoleRedirect()
{
// Same as GetManagedConsoleRedirectCode, just different format.
var cs = new CSNamespace();
var console = new CSClass(CSVisibility.Public, "Console", isStatic: true);
console.Fields.Add(CSFieldDeclaration.FieldLine(CSSimpleType.String, new CSIdentifier("filename"), isStatic: true));
console.Properties.Add(
new CSProperty(
CSSimpleType.String,
CSMethodKind.Static,
new CSIdentifier("Filename"),
CSVisibility.None,
CSCodeBlock.Create(
new CSIfElse(
new CSBinaryExpression(
CSBinaryOperator.Equal,
new CSIdentifier("filename"),
new CSIdentifier("null")
),
CSCodeBlock.Create(
CSAssignment.Assign(
new CSIdentifier("filename"),
new CSBinaryExpression(
CSBinaryOperator.NullCoalesce,
CSFunctionCall.Function(
"Environment.GetEnvironmentVariable",
CSConstant.Val("LEAKTEST_STDOUT_PATH")
),
new CSIdentifier("string.Empty")
)
)
)
),
CSReturn.ReturnLine(new CSIdentifier("filename"))
),
CSVisibility.None,
null
)
);
console.Methods.Add(
new CSMethod(
CSVisibility.Public,
CSMethodKind.Static,
CSSimpleType.Void,
new CSIdentifier("write"),
new CSParameterList(
new CSParameter(CSSimpleType.String, new CSIdentifier("value"))
),
CSCodeBlock.Create(
new CSIfElse(
new CSIdentifier("string.IsNullOrEmpty (Filename)"),
CSCodeBlock.Create(CSFunctionCall.FunctionCallLine("global::System.Console.Write", new CSIdentifier("value"))),
CSCodeBlock.Create(CSFunctionCall.FunctionCallLine("System.IO.File.AppendAllText", new CSIdentifier("Filename"), new CSIdentifier("value")))
)
)
)
);
console.Methods.Add(
new CSMethod(
CSVisibility.Public,
CSMethodKind.Static,
CSSimpleType.Void,
new CSIdentifier("Write"),
new CSParameterList(
new CSParameter(CSSimpleType.Object, new CSIdentifier("value"))
),
CSCodeBlock.Create(
CSFunctionCall.FunctionCallLine(
"write",
false,
new CSIdentifier("value?.ToString ()")
)
)
)
);
console.Methods.Add(
new CSMethod(
CSVisibility.Public,
CSMethodKind.Static,
CSSimpleType.Void,
new CSIdentifier("Write"),
new CSParameterList(
new CSParameter(CSSimpleType.String, new CSIdentifier("value")),
new CSParameter(CSSimpleType.CreateArray("object"), new CSIdentifier("args"), CSParameterKind.Params)
),
CSCodeBlock.Create(
CSFunctionCall.FunctionCallLine(
"write",
false,
new CSIdentifier("value == null ? string.Empty : string.Format (value, args)")
)
)
)
);
console.Methods.Add(
new CSMethod(
CSVisibility.Public,
CSMethodKind.Static,
CSSimpleType.Void,
new CSIdentifier("WriteLine"),
new CSParameterList(
new CSParameter(CSSimpleType.Object, new CSIdentifier("value"))
),
CSCodeBlock.Create(
CSFunctionCall.FunctionCallLine(
"write",
false,
new CSIdentifier("value?.ToString () + Environment.NewLine")
)
)
)
);
console.Methods.Add(
new CSMethod(
CSVisibility.Public,
CSMethodKind.Static,
CSSimpleType.Void,
new CSIdentifier("WriteLine"),
new CSParameterList(
new CSParameter(CSSimpleType.String, new CSIdentifier("value")),
new CSParameter(CSSimpleType.CreateArray("object"), new CSIdentifier("args"), CSParameterKind.Params)
),
CSCodeBlock.Create(
CSFunctionCall.FunctionCallLine(
"write",
false,
new CSIdentifier("(value == null ? string.Empty : string.Format (value, args)) + Environment.NewLine")
)
)
)
);
cs.Block.Add(console);
return(cs);
}
public void ClassEquals()
{
// Note for future Steve
// If an argument is a protocol with associated types, the calling conventions are different.
// Typically, if a function accepts a protocol type as its argument it gets passed in as an existential
// container.
// It appears that if a function is generic with a protocol constraint then the argument gets
// passed in as a pointer to the type then with the attendant metadata and protocol witness table
// As a result, this code crashes since we're passing in the wrong type as far as I can tell.
// This clearly needs more investigation
// note to current or future Steve:
// The calling conventions for this are:
// rdi - pointer to value containing a
// rsi - pointer to value containing b
// rdx - metadata for type T
// rcx - protocol witness table for T
//
// in pinvoke terms, this is
// extern static void areEqualClass(IntPtr a, IntPtr b, SwiftMetatype mt, IntPtr protowitness);
var swiftCode =
$"public func areEqualClass<T:Equatable>(a: T, b: T) -> Bool {{\n" +
" return a == b\n" +
"}\n" +
"public protocol XXEquals {\n" +
" func Equals() -> Bool\n" +
"}\n"
;
var eqClass = new CSClass(CSVisibility.Public, "EqClass");
var field = CSVariableDeclaration.VarLine(CSSimpleType.Int, "X");
eqClass.Fields.Add(field);
var ctorParms = new CSParameterList();
ctorParms.Add(new CSParameter(CSSimpleType.Int, new CSIdentifier("x")));
var assignLine = CSAssignment.Assign("X", new CSIdentifier("x"));
var ctor = new CSMethod(CSVisibility.Public, CSMethodKind.None, null, new CSIdentifier("EqClass"), ctorParms,
CSCodeBlock.Create(assignLine));
eqClass.Constructors.Add(ctor);
eqClass.Inheritance.Add(typeof(ISwiftEquatable));
var eqParms = new CSParameterList();
eqParms.Add(new CSParameter(new CSSimpleType("ISwiftEquatable"), new CSIdentifier("other")));
var castLine = CSVariableDeclaration.VarLine(new CSSimpleType("EqClass"), "otherEqClass",
new CSBinaryExpression(CSBinaryOperator.As, new CSIdentifier("other"), new CSIdentifier("EqClass")));
var nonNull = new CSBinaryExpression(CSBinaryOperator.NotEqual, new CSIdentifier("otherEqClass"), CSConstant.Null);
var valsEq = new CSBinaryExpression(CSBinaryOperator.Equal, new CSIdentifier("otherEqClass.X"), new CSIdentifier("X"));
var returnLine = CSReturn.ReturnLine(new CSBinaryExpression(CSBinaryOperator.And, nonNull, valsEq));
var opEquals = new CSMethod(CSVisibility.Public, CSMethodKind.None, CSSimpleType.Bool, new CSIdentifier("OpEquals"), eqParms,
CSCodeBlock.Create(castLine, returnLine));
eqClass.Methods.Add(opEquals);
var newClass = new CSFunctionCall("EqClass", true, CSConstant.Val(5));
var isEqual = new CSFunctionCall($"TopLevelEntities.AreEqualClass", false, newClass, newClass);
var printer = CSFunctionCall.ConsoleWriteLine(isEqual);
var callingCode = CSCodeBlock.Create(printer);
TestRunning.TestAndExecute(swiftCode, callingCode, "True\n", otherClass: eqClass, platform: PlatformName.macOS);
}