private static bool TryGetCommonType(EdmType edmType1, EdmType edmType2, out EdmType commonEdmType)
{
DebugCheck.NotNull(edmType1);
DebugCheck.NotNull(edmType2);
if (edmType2 == edmType1)
{
commonEdmType = edmType1;
return(true);
}
if (Helper.IsPrimitiveType(edmType1) &&
Helper.IsPrimitiveType(edmType2))
{
return(TryGetCommonType(
(PrimitiveType)edmType1,
(PrimitiveType)edmType2,
out commonEdmType));
}
else if (Helper.IsCollectionType(edmType1) &&
Helper.IsCollectionType(edmType2))
{
return(TryGetCommonType(
(CollectionType)edmType1,
(CollectionType)edmType2,
out commonEdmType));
}
else if (Helper.IsEntityTypeBase(edmType1) &&
Helper.IsEntityTypeBase(edmType2))
{
return(TryGetCommonBaseType(
edmType1,
edmType2,
out commonEdmType));
}
else if (Helper.IsRefType(edmType1) &&
Helper.IsRefType(edmType2))
{
return(TryGetCommonType(
(RefType)edmType1,
(RefType)edmType2,
out commonEdmType));
}
else if (Helper.IsRowType(edmType1) &&
Helper.IsRowType(edmType2))
{
return(TryGetCommonType(
(RowType)edmType1,
(RowType)edmType2,
out commonEdmType));
}
else
{
commonEdmType = null;
return(false);
}
}
internal static bool IsRowType(TypeUsage type)
{
return(Helper.IsRowType((GlobalItem)type.EdmType));
}
/// <summary>
/// determines if type is a RowType
/// </summary>
/// <param name="type"> </param>
/// <returns> </returns>
internal static bool IsRowType(TypeUsage type)
{
return(Helper.IsRowType(type.EdmType));
}
