public FieldInfoMatchTarget(TypeInfo parentTypeInfo, int index)
{
if (parentTypeInfo == null) throw new ArgumentNullException(nameof(parentTypeInfo));
m_parentTypeInfo = parentTypeInfo;
m_index = index;
m_varDesc = m_parentTypeInfo.GetVarDesc(m_index);
m_nativeParentTypeName = m_parentTypeInfo.GetDocumentation();
}
public ElemDesc(VarDesc varDesc, ELEMDESC elemdesc)
{
m_parent = varDesc;
Init(elemdesc);
}
private void CreateField(TypeInfo type, TypeAttr attr, VarDesc var, ref bool isConversionLoss)
{
TypeDesc fieldTypeDesc = var.elemdescVar.tdesc;
TypeConverter typeConverter = new TypeConverter(m_info, type, fieldTypeDesc, ConversionType.Field);
Type fieldType = typeConverter.ConvertedType;
string fieldName = type.GetDocumentation(var.memid);
FieldBuilder field = m_typeBuilder.DefineField(fieldName, fieldType, FieldAttributes.Public);
typeConverter.ApplyAttributes(field);
isConversionLoss |= typeConverter.IsConversionLoss;
//
// Emit ComConversionLossAttribute for fields if necessary
//
if (typeConverter.IsConversionLoss)
{
field.SetCustomAttribute(CustomAttributeHelper.GetBuilderForComConversionLoss());
//
// Emit Wrn_UnconvertableField warning
//
m_info.ReportEvent(
WarningCode.Wrn_UnconvertableField,
Resource.FormatString("Wrn_UnconvertableField", m_typeBuilder.FullName, fieldName));
}
//
// Emit TypeLibVarAttribute if necessary
//
if (var.wVarFlags != 0)
{
field.SetCustomAttribute(CustomAttributeHelper.GetBuilderForTypeLibVar((TypeLibVarFlags)var.wVarFlags));
}
}
private void CreateField(TypeInfo type, TypeAttr attr, VarDesc var, ref bool isConversionLoss)
{
if (IsObjectType(type, var.elemdescVar.tdesc))
{
isConversionLoss = true;
}
else
{
TypeConverter typeConverter = new TypeConverter(m_info, type, var.elemdescVar.tdesc, ConversionType.Field);
Type fieldType = typeConverter.ConvertedType;
// TlbImp2 will only skip reference types, instead of skipping every field
// Also, TlbImp1 will skip ValueType *, which doesn't make any sense. TlbImp2 will keep ValueType * as IntPtr
string fieldName = type.GetDocumentation(var.memid);
// Generates the [FieldOffset(0)] layout declarations that approximate unions in managed code
FieldBuilder field = m_typeBuilder.DefineField(fieldName, fieldType, FieldAttributes.Public);
field.SetCustomAttribute(CustomAttributeHelper.GetBuilderForFieldOffset(0));
typeConverter.ApplyAttributes(field);
isConversionLoss |= typeConverter.IsConversionLoss;
//
// Emit ComConversionLossAttribute for fields if necessary
//
if (typeConverter.IsConversionLoss)
{
field.SetCustomAttribute(CustomAttributeHelper.GetBuilderForComConversionLoss());
//
// Emit Wrn_UnconvertableField warning
//
m_info.ReportEvent(
WarningCode.Wrn_UnconvertableField,
Resource.FormatString("Wrn_UnconvertableField", m_typeBuilder.FullName, fieldName));
}
}
}
public ElemDesc(VarDesc varDesc, ELEMDESC elemdesc)
{
m_parent = varDesc;
Init(elemdesc);
}
private static MethodBuilder CreateMethodInternal(InterfaceInfo info, VarDesc var, InterfaceMemberInfo memberInfo, CreateMethodMode mode, ref bool isConversionLoss)
{
bool convertingNewEnumMember = IsNewEnumDispatchProperty(info.ConverterInfo, info.RefTypeInfo, var, memberInfo.Index);
Type retType = null;
Type[] paramTypes = null;
TypeConverter propTypeConverter = new TypeConverter(info.ConverterInfo, info.RefTypeInfo, var.elemdescVar.tdesc, ConversionType.ReturnValue);
isConversionLoss |= propTypeConverter.IsConversionLoss;
Type propType = propTypeConverter.ConvertedType;
int propTypeParamIndex = 0; // The index of the function parameter that represents the property type
if (memberInfo.InvokeKind == TypeLibTypes.Interop.INVOKEKIND.INVOKE_PROPERTYGET)
{
retType = propType;
paramTypes = new Type[] { };
propTypeParamIndex = 0; // for Type get_XXX(). Index = 0
}
else if (memberInfo.InvokeKind == TypeLibTypes.Interop.INVOKEKIND.INVOKE_PROPERTYPUT)
{
retType = typeof(void);
paramTypes = new Type[] { propType };
propTypeParamIndex = 1; // for void set_XXX(Type arg). Index = 1
}
else
{
Debug.Assert(false, "Should not get here!");
}
MethodBuilder methodBuilder = CreateMethodCore(info, memberInfo, convertingNewEnumMember, mode, true, retType, paramTypes);
ProcessParam(info, memberInfo, var.elemdescVar, propTypeConverter, methodBuilder, propTypeParamIndex, "", false, false);
return methodBuilder;
}
/// <summary>
/// Sets the default value according to the ElemDesc on the FieldBuilder
/// </summary>
public static void SetDefaultValue(VarDesc var, Type type, FieldBuilder fieldBuilder)
{
SetDefaultValueInternal(var.lpvarValue, type, null, fieldBuilder, (short)var.elemdescVar.tdesc.vt);
}
/// <summary>
/// Is this dispatch property a NewEnum property with the right type and DISPID?
/// </summary>
public static bool IsNewEnumDispatchProperty(ConverterInfo info, TypeInfo typeInfo, VarDesc var, int index)
{
//
// Support GUID_DispIdOverride
//
int dispid = var.memid;
GetOverrideDispId(info, typeInfo, index, InterfaceMemberType.Variable, ref dispid, false);
if (dispid == WellKnownDispId.DISPID_NEWENUM &&
var.elemdescVar.paramdesc.IsRetval &&
var.IsReadOnly
)
{
TypeDesc typeDesc = var.elemdescVar.tdesc;
if (typeDesc.vt == (int)VarEnum.VT_UNKNOWN || typeDesc.vt == (int)VarEnum.VT_DISPATCH)
{
return true;
}
else if (typeDesc.vt == (int)VarEnum.VT_PTR)
{
typeDesc = typeDesc.lptdesc;
if (typeDesc.vt == (int)VarEnum.VT_USERDEFINED)
{
TypeInfo type = typeInfo.GetRefTypeInfo(typeDesc.hreftype);
using (TypeAttr attr = type.GetTypeAttr())
{
if (attr.Guid == WellKnownGuids.IID_IUnknown ||
attr.Guid == WellKnownGuids.IID_IDispatch ||
attr.Guid == WellKnownGuids.IID_IEnumVARIANT)
{
return true;
}
}
}
}
}
return false;
}
