//
        // Helper methods
        //

        internal static CompilerType GetCompilerTypeFromBuildProvider(
            BuildProvider buildProvider)
        {
            HttpContext context = null;

            if (EtwTrace.IsTraceEnabled(EtwTraceLevel.Verbose, EtwTraceFlags.Infrastructure) && (context = HttpContext.Current) != null)
            {
                EtwTrace.Trace(EtwTraceType.ETW_TYPE_PARSE_ENTER, context.WorkerRequest);
            }

            try {
                CompilerType compilerType = buildProvider.CodeCompilerType;
                if (compilerType != null)
                {
                    CompilationUtil.CheckCompilerOptionsAllowed(compilerType.CompilerParameters.CompilerOptions,
                                                                false /*config*/, null, 0);
                }
                return(compilerType);
            }
            finally {
                if (EtwTrace.IsTraceEnabled(EtwTraceLevel.Verbose, EtwTraceFlags.Infrastructure) && context != null)
                {
                    EtwTrace.Trace(EtwTraceType.ETW_TYPE_PARSE_LEAVE, context.WorkerRequest);
                }
            }
        }
        internal static CompilerType GetCompilerTypeFromBuildProvider(System.Web.Compilation.BuildProvider buildProvider)
        {
            HttpContext  context = null;
            CompilerType type2;

            if (EtwTrace.IsTraceEnabled(5, 1) && ((context = HttpContext.Current) != null))
            {
                EtwTrace.Trace(EtwTraceType.ETW_TYPE_PARSE_ENTER, context.WorkerRequest);
            }
            try
            {
                CompilerType codeCompilerType = buildProvider.CodeCompilerType;
                if (codeCompilerType != null)
                {
                    CompilationUtil.CheckCompilerOptionsAllowed(codeCompilerType.CompilerParameters.CompilerOptions, false, null, 0);
                }
                type2 = codeCompilerType;
            }
            finally
            {
                if (EtwTrace.IsTraceEnabled(5, 1) && (context != null))
                {
                    EtwTrace.Trace(EtwTraceType.ETW_TYPE_PARSE_LEAVE, context.WorkerRequest);
                }
            }
            return(type2);
        }