public MemberDeclarationSyntax GenerateCode(CsInterface csElement)
{
var vtblClassName = csElement.VtblName.Split('.').Last();
return(ClassDeclaration(vtblClassName)
.WithModifiers(
TokenList(
Token(SyntaxKind.ProtectedKeyword),
Token(SyntaxKind.UnsafeKeyword)))
.WithBaseList(
BaseList(
SingletonSeparatedList <BaseTypeSyntax>(
SimpleBaseType(
csElement.Base != null ?
(NameSyntax)IdentifierName(csElement.Base.VtblName)
: globalNamespace.GetTypeNameSyntax(WellKnownName.CppObjectVtbl)))))
.WithMembers(
List(
new MemberDeclarationSyntax[]
{
ConstructorDeclaration(
Identifier(vtblClassName))
.WithModifiers(
TokenList(
Token(SyntaxKind.PublicKeyword)))
.WithParameterList(
ParameterList(
SingletonSeparatedList(
Parameter(
Identifier("numberOfCallbackMethods"))
.WithType(
PredefinedType(
Token(SyntaxKind.IntKeyword))))))
.WithInitializer(
ConstructorInitializer(
SyntaxKind.BaseConstructorInitializer,
ArgumentList(
SingletonSeparatedList(
Argument(
BinaryExpression(
SyntaxKind.AddExpression,
IdentifierName("numberOfCallbackMethods"),
LiteralExpression(
SyntaxKind.NumericLiteralExpression,
Literal(csElement.Methods.Count()))))))))
.WithBody(
Block(csElement.Methods
.OrderBy(method => method.Offset)
.Select(method => GeneratorHelpers.GetPlatformSpecificStatements(globalNamespace, generators.Config, method.InteropSignatures.Keys,
platform =>
ExpressionStatement(
InvocationExpression(
IdentifierName("AddMethod"))
.WithArgumentList(
ArgumentList(
SeparatedList(
new []
{
Argument(
ObjectCreationExpression(
IdentifierName($"{method.Name}Delegate{GeneratorHelpers.GetPlatformSpecificSuffix(platform)}"))
.WithArgumentList(
ArgumentList(
SingletonSeparatedList(
Argument(
IdentifierName($"{method.Name}{GeneratorHelpers.GetPlatformSpecificSuffix(platform)}")))))),
Argument(
LiteralExpression(SyntaxKind.NumericLiteralExpression,
Literal((platform & PlatformDetectionType.IsWindows) != 0 ? method.WindowsOffset : method.Offset)))
}
))))))))
}
.Concat(csElement.Methods
.SelectMany(method => generators.ShadowCallable.GenerateCode(method))))));
}
public override IEnumerable <MemberDeclarationSyntax> GenerateCode(CsCallable csElement)
{
// Documentation
var documentationTrivia = GenerateDocumentationTrivia(csElement);
// method signature
var parameters = csElement.PublicParameters.Select(
param => Generators.Marshalling.GetMarshaller(param)
.GenerateManagedParameter(param)
.WithDefault(param.DefaultValue == null
? default
: EqualsValueClause(ParseExpression(param.DefaultValue))
)
);
var methodDeclaration = MethodDeclaration(
ParseTypeName(csElement.GetPublicReturnTypeQualifiedName(globalNamespace)),
csElement.Name
)
.WithModifiers(csElement.VisibilityTokenList.Add(Token(SyntaxKind.UnsafeKeyword)))
.WithParameterList(ParameterList(SeparatedList(parameters)))
.WithLeadingTrivia(Trivia(documentationTrivia));
if (csElement.SignatureOnly)
{
yield return(methodDeclaration
.WithSemicolonToken(Token(SyntaxKind.SemicolonToken))
.WithModifiers(TokenList()));
yield break;
}
var statements = new List <StatementSyntax>();
foreach (var param in csElement.Parameters)
{
if ((param.Relations?.Count ?? 0) == 0)
{
if (param.UsedAsReturn)
{
statements.Add(GenerateManagedHiddenMarshallableProlog(param));
}
statements.AddRange(Generators.Marshalling.GetMarshaller(param).GenerateManagedToNativeProlog(param));
}
else
{
statements.Add(GenerateManagedHiddenMarshallableProlog(param));
foreach (var relation in param.Relations)
{
if (!ValidRelationInScenario(relation))
{
logger.Error(LoggingCodes.InvalidRelationInScenario, $"The relation \"{relation}\" is invalid in a method/function.");
continue;
}
var marshaller = Generators.Marshalling.GetRelationMarshaller(relation);
StatementSyntax marshalToNative;
var relatedMarshallableName = (relation as LengthRelation)?.Identifier;
if (relatedMarshallableName is null)
{
marshalToNative = marshaller.GenerateManagedToNative(null, param);
}
else
{
var relatedParameter = csElement.Parameters.SingleOrDefault(p => p.CppElementName == relatedMarshallableName);
if (relatedParameter is null)
{
logger.Error(LoggingCodes.InvalidRelationInScenario, $"The relation with \"{relatedMarshallableName}\" parameter is invalid in a method/function \"{csElement.Name}\".");
continue;
}
marshalToNative = marshaller.GenerateManagedToNative(relatedParameter, param);
}
if (marshalToNative != null)
{
statements.Add(marshalToNative);
}
}
statements.AddRange(Generators.Marshalling.GetMarshaller(param).GenerateManagedToNativeProlog(param));
}
}
if (csElement.HasReturnType)
{
statements.Add(GenerateManagedHiddenMarshallableProlog(csElement.ReturnValue));
statements.AddRange(
Generators.Marshalling.GetMarshaller(csElement.ReturnValue)
.GenerateManagedToNativeProlog(csElement.ReturnValue));
}
foreach (var param in csElement.Parameters)
{
if (param.IsIn || param.IsRefIn || param.IsRef)
{
var marshaller = Generators.Marshalling.GetMarshaller(param);
var marshalToNative = marshaller.GenerateManagedToNative(param, true);
if (marshalToNative != null)
{
statements.Add(marshalToNative);
}
}
}
var fixedStatements = csElement.PublicParameters
.Select(param => Generators.Marshalling.GetMarshaller(param).GeneratePin(param))
.Where(stmt => stmt != null).ToList();
var callStmt = GeneratorHelpers.GetPlatformSpecificStatements(
globalNamespace, Generators.Config, csElement.InteropSignatures.Keys,
platform => ExpressionStatement(
Generators.NativeInvocation.GenerateCall(
csElement, platform, csElement.InteropSignatures[platform]
)
)
);
var fixedStatement = fixedStatements.FirstOrDefault()?.WithStatement(callStmt);
foreach (var statement in fixedStatements.Skip(1))
{
fixedStatement = statement.WithStatement(fixedStatement);
}
statements.Add(fixedStatement ?? callStmt);
foreach (var param in csElement.Parameters)
{
if (param.IsRef || param.IsOut)
{
var marshaller = Generators.Marshalling.GetMarshaller(param);
var marshalFromNative = marshaller.GenerateNativeToManaged(param, true);
if (marshalFromNative != null)
{
statements.Add(marshalFromNative);
}
}
}
if (csElement.HasReturnType)
{
var marshaller = Generators.Marshalling.GetMarshaller(csElement.ReturnValue);
var marshalReturnType = marshaller.GenerateNativeToManaged(csElement.ReturnValue, true);
if (marshalReturnType != null)
{
statements.Add(marshalReturnType);
}
}
statements.AddRange(csElement.Parameters
.Where(param => !param.IsOut)
.Select(param => Generators.Marshalling.GetMarshaller(param).GenerateNativeCleanup(param, true))
.Where(param => param != null));
if (csElement.IsReturnTypeResult(globalNamespace) && csElement.CheckReturnType)
{
statements.Add(ExpressionStatement(
InvocationExpression(
MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression,
IdentifierName(csElement.ReturnValue.Name),
IdentifierName("CheckError")))));
}
// Return
if (csElement.HasReturnStatement(globalNamespace))
{
statements.Add(ReturnStatement(IdentifierName(csElement.ReturnName)));
}
yield return(methodDeclaration.WithBody(Block(statements)));
}
public MemberDeclarationSyntax GenerateCode(CsInterface csElement)
{
var vtblClassName = csElement.VtblName.Split('.').Last();
// Default: at least protected to enable inheritance.
var vtblVisibility = csElement.VtblVisibility ?? Visibility.ProtectedInternal;
StatementSyntax VtblMethodSelector(CsMethod method)
{
StatementSyntax MethodBuilder(PlatformDetectionType platform)
{
var arguments = new[]
{
Argument(
ObjectCreationExpression(IdentifierName(GetMethodDelegateName(method, platform)))
.WithArgumentList(
ArgumentList(
SingletonSeparatedList(
Argument(
IdentifierName(
$"{method.Name}{GeneratorHelpers.GetPlatformSpecificSuffix(platform)}"
)
)
)
)
)
),
Argument(
LiteralExpression(
SyntaxKind.NumericLiteralExpression,
Literal((platform & PlatformDetectionType.Windows) != 0
? method.WindowsOffset
: method.Offset)
)
)
};
return(ExpressionStatement(
InvocationExpression(IdentifierName("AddMethod"))
.WithArgumentList(ArgumentList(SeparatedList(arguments)))
));
}
return(GeneratorHelpers.GetPlatformSpecificStatements(GlobalNamespace, Generators.Config,
method.InteropSignatures.Keys, MethodBuilder));
}
List <MemberDeclarationSyntax> members = new()
{
ConstructorDeclaration(Identifier(vtblClassName))
.WithModifiers(TokenList(Token(SyntaxKind.PublicKeyword)))
.WithParameterList(
ParameterList(
SingletonSeparatedList(
Parameter(Identifier("numberOfCallbackMethods"))
.WithType(PredefinedType(Token(SyntaxKind.IntKeyword)))
)
)
)
.WithInitializer(
ConstructorInitializer(
SyntaxKind.BaseConstructorInitializer,
ArgumentList(
SingletonSeparatedList(
Argument(
BinaryExpression(
SyntaxKind.AddExpression,
IdentifierName("numberOfCallbackMethods"),
LiteralExpression(
SyntaxKind.NumericLiteralExpression,
Literal(csElement.MethodList.Count)
)
)
)
)
)
)
)
.WithBody(
Block(
csElement.Methods
.OrderBy(method => method.Offset)
.Select(VtblMethodSelector)
)
)
};
members.AddRange(csElement.Methods.SelectMany(method => Generators.ShadowCallable.GenerateCode(method)));
return(ClassDeclaration(vtblClassName)
.WithModifiers(
ModelUtilities.VisibilityToTokenList(vtblVisibility, SyntaxKind.UnsafeKeyword,
SyntaxKind.PartialKeyword)
)
.WithAttributeLists(DebuggerTypeProxyAttribute)
.WithBaseList(
BaseList(
SingletonSeparatedList <BaseTypeSyntax>(
SimpleBaseType(
csElement.Base != null
? IdentifierName(csElement.Base.VtblName)
: GlobalNamespace.GetTypeNameSyntax(WellKnownName.CppObjectVtbl)
)
)
)
)
.WithMembers(List(members)));
}
