public override BoundNode VisitNoPiaObjectCreationExpression(BoundNoPiaObjectCreationExpression node)
{
// For the NoPIA feature, we need to gather the GUID from the coclass, and
// generate the following:
//
// (IPiaType)System.Activator.CreateInstance(System.Runtime.InteropServices.Marshal.GetTypeFromCLSID(new Guid(GUID)))
//
// If System.Runtime.InteropServices.Marshal.GetTypeFromCLSID is not available (older framework),
// System.Type.GetTypeFromCLSID() is used to get the type for the CLSID:
//
// (IPiaType)System.Activator.CreateInstance(System.Type.GetTypeFromCLSID(new Guid(GUID)))
SyntaxNode oldSyntax = _factory.Syntax;
_factory.Syntax = node.Syntax;
var ctor = _factory.WellKnownMethod(WellKnownMember.System_Guid__ctor);
BoundExpression newGuid;
if (ctor is { })
public override BoundNode VisitNoPiaObjectCreationExpression(BoundNoPiaObjectCreationExpression node)
{
// For the NoPIA feature, we need to gather the GUID from the coclass, and
// generate the following:
//
// (IPiaType)System.Activator.CreateInstance(System.Runtime.InteropServices.Marshal.GetTypeFromCLSID(new Guid(GUID)))
//
// If System.Runtime.InteropServices.Marshal.GetTypeFromCLSID is not available (older framework),
// System.Type.GetTypeFromCLSID() is used to get the type for the CLSID:
//
// (IPiaType)System.Activator.CreateInstance(System.Type.GetTypeFromCLSID(new Guid(GUID)))
CSharpSyntaxNode oldSyntax = _factory.Syntax;
_factory.Syntax = node.Syntax;
var ctor = _factory.WellKnownMethod(WellKnownMember.System_Guid__ctor);
BoundExpression newGuid;
if ((object)ctor != null)
{
newGuid = _factory.New(ctor, _factory.Literal(node.GuidString));
}
else
{
newGuid = new BoundBadExpression(node.Syntax, LookupResultKind.NotCreatable, ImmutableArray <Symbol> .Empty, ImmutableArray <BoundNode> .Empty, ErrorTypeSymbol.UnknownResultType);
}
var getTypeFromCLSID = _factory.WellKnownMethod(WellKnownMember.System_Runtime_InteropServices_Marshal__GetTypeFromCLSID, isOptional: true);
if ((object)getTypeFromCLSID == null)
{
getTypeFromCLSID = _factory.WellKnownMethod(WellKnownMember.System_Type__GetTypeFromCLSID);
}
BoundExpression callGetTypeFromCLSID;
if ((object)getTypeFromCLSID != null)
{
callGetTypeFromCLSID = _factory.Call(null, getTypeFromCLSID, newGuid);
}
else
{
callGetTypeFromCLSID = new BoundBadExpression(node.Syntax, LookupResultKind.OverloadResolutionFailure, ImmutableArray <Symbol> .Empty, ImmutableArray <BoundNode> .Empty, ErrorTypeSymbol.UnknownResultType);
}
var createInstance = _factory.WellKnownMethod(WellKnownMember.System_Activator__CreateInstance);
BoundExpression rewrittenObjectCreation;
if ((object)createInstance != null)
{
rewrittenObjectCreation = _factory.Convert(node.Type, _factory.Call(null, createInstance, callGetTypeFromCLSID));
}
else
{
rewrittenObjectCreation = new BoundBadExpression(node.Syntax, LookupResultKind.OverloadResolutionFailure, ImmutableArray <Symbol> .Empty, ImmutableArray <BoundNode> .Empty, node.Type);
}
_factory.Syntax = oldSyntax;
if (node.InitializerExpressionOpt == null || node.InitializerExpressionOpt.HasErrors)
{
return(rewrittenObjectCreation);
}
return(MakeObjectCreationWithInitializer(node.Syntax, rewrittenObjectCreation, node.InitializerExpressionOpt, node.Type));
}