System.CodeDom.Compiler.CodeValidator.ValidateCodeDirective C# (CSharp) Method

        private static void ValidateCodeDirective(CodeDirective e) {
            if (e is CodeChecksumPragma)
                ValidateChecksumPragma((CodeChecksumPragma) e);
            else if (e is CodeRegionDirective)
                ValidateRegionDirective((CodeRegionDirective) e);
            else
                throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
        }