/// <summary>
/// Validates the type of an entry in a top-level feed.
/// </summary>
/// <param name="entityType">The type of the entry.</param>
internal void ValidateEntry(IEdmEntityType entityType)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(entityType != null, "entityType != null");
// If we don't have a type, store the type of the first item.
if (this.itemType == null)
{
this.itemType = entityType;
}
// Validate the expected and actual types.
if (this.itemType.IsEquivalentTo(entityType))
{
return;
}
// If the types are not equivalent, make sure they have a common base type.
IEdmType commonBaseType = EdmLibraryExtensions.GetCommonBaseType(this.itemType, entityType);
if (commonBaseType == null)
{
throw new ODataException(Strings.FeedWithoutExpectedTypeValidator_IncompatibleTypes(entityType.ODataFullName(), this.itemType.ODataFullName()));
}
this.itemType = (IEdmEntityType)commonBaseType;
}
