private static void ComputeCommonTypeClosure()
{
if (TypeSemantics._commonTypeClosure != null)
{
return;
}
ReadOnlyCollection <PrimitiveType>[,] readOnlyCollectionArray = new ReadOnlyCollection <PrimitiveType> [31, 31];
for (int index = 0; index < 31; ++index)
{
readOnlyCollectionArray[index, index] = Helper.EmptyPrimitiveTypeReadOnlyCollection;
}
ReadOnlyCollection <PrimitiveType> storeTypes = EdmProviderManifest.Instance.GetStoreTypes();
for (int index1 = 0; index1 < 31; ++index1)
{
for (int index2 = 0; index2 < index1; ++index2)
{
readOnlyCollectionArray[index1, index2] = TypeSemantics.Intersect((IList <PrimitiveType>)EdmProviderManifest.Instance.GetPromotionTypes(storeTypes[index1]), (IList <PrimitiveType>)EdmProviderManifest.Instance.GetPromotionTypes(storeTypes[index2]));
readOnlyCollectionArray[index2, index1] = readOnlyCollectionArray[index1, index2];
}
}
Interlocked.CompareExchange <ReadOnlyCollection <PrimitiveType> [, ]>(ref TypeSemantics._commonTypeClosure, readOnlyCollectionArray, (ReadOnlyCollection <PrimitiveType> [, ])null);
}
