protected StatementSyntax GenerateContentsMarshallingStatement(
TypePositionInfo info,
StubCodeContext context,
ExpressionSyntax lengthExpression,
params StubCodeContext.Stage[] stagesToGeneratePerElement)
{
string managedSpanIdentifier = MarshallerHelpers.GetManagedSpanIdentifier(info, context);
string nativeSpanIdentifier = MarshallerHelpers.GetNativeSpanIdentifier(info, context);
var elementSetupSubContext = new LinearCollectionElementMarshallingCodeContext(
StubCodeContext.Stage.Setup,
managedSpanIdentifier,
nativeSpanIdentifier,
context);
TypePositionInfo localElementInfo = _elementInfo with
{
InstanceIdentifier = info.InstanceIdentifier,
RefKind = info.IsByRef ? info.RefKind : info.ByValueContentsMarshalKind.GetRefKindForByValueContentsKind(),
ManagedIndex = info.ManagedIndex,
NativeIndex = info.NativeIndex
};
List <StatementSyntax> elementStatements = new();
foreach (StubCodeContext.Stage stage in stagesToGeneratePerElement)
{
var elementSubContext = elementSetupSubContext with {
CurrentStage = stage
};
elementStatements.AddRange(_elementMarshaller.Generate(localElementInfo, elementSubContext));
}
if (elementStatements.Any())
{
StatementSyntax marshallingStatement = Block(
List(_elementMarshaller.Generate(localElementInfo, elementSetupSubContext)
.Concat(elementStatements)));
if (_elementMarshaller.AsNativeType(_elementInfo) is PointerTypeSyntax elementNativeType)
{
PointerNativeTypeAssignmentRewriter rewriter = new(elementSetupSubContext.GetIdentifiers(localElementInfo).native, elementNativeType);
marshallingStatement = (StatementSyntax)rewriter.Visit(marshallingStatement);
}
// Iterate through the elements of the native collection to marshal them
return(MarshallerHelpers.GetForLoop(lengthExpression, elementSetupSubContext.IndexerIdentifier)
.WithStatement(marshallingStatement));
}
return(EmptyStatement());
}
