Mono.CSharp.TypeContainer.ResolveBaseTypes C# (CSharp) Method

		protected virtual TypeExpr[] ResolveBaseTypes (out TypeExpr base_class)
		{
			base_class = null;
			if (type_bases == null)
				return null;

			int count = type_bases.Count;
			TypeExpr [] ifaces = null;
			var base_context = new BaseContext (this);
			for (int i = 0, j = 0; i < count; i++){
				FullNamedExpression fne = type_bases [i];

				TypeExpr fne_resolved = fne.ResolveAsTypeTerminal (base_context, false);
				if (fne_resolved == null)
					continue;

				if (i == 0 && Kind == MemberKind.Class && !fne_resolved.Type.IsInterface) {
					if (fne_resolved.Type == InternalType.Dynamic) {
						Report.Error (1965, Location, "Class `{0}' cannot derive from the dynamic type",
							GetSignatureForError ());

						continue;
					}
					
					base_type = fne_resolved.Type;
					base_class = fne_resolved;
					continue;
				}

				if (ifaces == null)
					ifaces = new TypeExpr [count - i];

				if (fne_resolved.Type.IsInterface) {
					for (int ii = 0; ii < j; ++ii) {
						if (fne_resolved.Type == ifaces [ii].Type) {
							Report.Error (528, Location, "`{0}' is already listed in interface list",
								fne_resolved.GetSignatureForError ());
							break;
						}
					}

					if (Kind == MemberKind.Interface && !IsAccessibleAs (fne_resolved.Type)) {
						Report.Error (61, fne.Location,
							"Inconsistent accessibility: base interface `{0}' is less accessible than interface `{1}'",
							fne_resolved.GetSignatureForError (), GetSignatureForError ());
					}
				} else {
					Report.SymbolRelatedToPreviousError (fne_resolved.Type);
					if (Kind != MemberKind.Class) {
						Report.Error (527, fne.Location, "Type `{0}' in interface list is not an interface", fne_resolved.GetSignatureForError ());
					} else if (base_class != null)
						Report.Error (1721, fne.Location, "`{0}': Classes cannot have multiple base classes (`{1}' and `{2}')",
							GetSignatureForError (), base_class.GetSignatureForError (), fne_resolved.GetSignatureForError ());
					else {
						Report.Error (1722, fne.Location, "`{0}': Base class `{1}' must be specified as first",
							GetSignatureForError (), fne_resolved.GetSignatureForError ());
					}
				}

				ifaces [j++] = fne_resolved;
			}

			return ifaces;
		}