protected StatementSyntax GenerateArrayNativeToManagedExtendedProlog(CsMarshalCallableBase csElement)
{
var callable = (CsCallable)csElement.Parent;
var lengthParam = callable.Parameters
.FirstOrDefault(param
=> param.Relation is LengthRelation relation &&
relation.RelatedMarshallableName == csElement.CppElementName);
if (lengthParam != null)
{
var marshaller = new LengthRelationMarshaller(globalNamespace);
return(marshaller.GenerateNativeToManaged(csElement, lengthParam));
}
else
{
return(NotSupported("Cannot marshal a native array to a managed array when length is not specified"));
}
}
protected StatementSyntax GenerateArrayNativeToManagedExtendedProlog(CsMarshalCallableBase csElement)
{
// e.g. Function(int[] buffer, int length)
// callable is Function
// csElement is buffer
// lengthParam is length
var callable = (CsCallable)csElement.Parent;
bool MatchPredicate(CsParameter param)
{
var relations = param.Relations;
if (relations is null)
{
return(false);
}
return(relations.OfType <LengthRelation>()
.Any(relation => relation.Identifier == csElement.CppElementName));
}
var lengthParam = callable.Parameters
.Where(MatchPredicate)
.ToArray();
if (lengthParam.Length == 0)
{
return(NotSupported("Cannot marshal a native array to a managed array when length is not specified"));
}
if (lengthParam.Length > 1)
{
return(NotSupported("Cannot marshal a native array to a managed array when length is specified multiple times"));
}
var marshaller = new LengthRelationMarshaller(globalNamespace);
return(marshaller.GenerateNativeToManaged(csElement, lengthParam[0]));
}
