System.Management.Pash.Implementation.ExecutionVisitor.EvaluateAst C# (CSharp) Method

        public object EvaluateAst(Ast expressionAst, bool writeSideEffectsToPipeline)
        {
            var subVisitor = this.CloneSub(writeSideEffectsToPipeline);
            expressionAst.Visit(subVisitor);
            var result = subVisitor._pipelineCommandRuntime.OutputStream.Read();

            if (result.Count == 0)
            {
                return null;
            }
            else if (result.Count == 1)
            {
                return result.Single();
            }
            return result.ToArray();
        }

        private string GetOutputFileName(FileRedirectionAst redirectionAst)
        {
            object outputPath = _visitor.EvaluateAst(redirectionAst.Location, false);

            if (outputPath != null)
            {
                return(outputPath.ToString());
            }
            return(null);
        }