C# (CSharp) SimplifyNamesAnnotionRewriter Examples

Example #1

File: FAQ.cs Project: Rickinio/roslyn

        public void UseServices()
        {
            var source = @"using System.Diagnostics;
using System;
using System.IO;
namespace NS
{
public class C
{
}
}
class Program
{
    public static void Main()
    {
        System.Int32 i = 0;                 System.Console.WriteLine(i.ToString());
        Process p = Process.GetCurrentProcess(); 
            Console.WriteLine(p.Id);
    }
}";
            var projectId = ProjectId.CreateNewId();
            var documentId = DocumentId.CreateNewId(projectId);

            var solution = new AdhocWorkspace().CurrentSolution
                .AddProject(projectId, "MyProject", "MyProject", LanguageNames.CSharp)
                .AddMetadataReference(projectId, Mscorlib)
                .AddMetadataReference(projectId, AppDomain.CurrentDomain.GetAssemblies()
                    .Where(a => string.Compare(a.GetName().Name, "System", StringComparison.OrdinalIgnoreCase) == 0)
                    .Select(a => MetadataReference.CreateFromFile(a.Location)).Single())
                .AddDocument(documentId, "MyFile.cs", source);
            var document = solution.GetDocument(documentId);

            // Format the document.
            document = Formatter.FormatAsync(document).Result;
            Assert.Equal(@"using System.Diagnostics;
using System;
using System.IO;
namespace NS
{
    public class C
    {
    }
}
class Program
{
    public static void Main()
    {
        System.Int32 i = 0; System.Console.WriteLine(i.ToString());
        Process p = Process.GetCurrentProcess();
        Console.WriteLine(p.Id);
    }
}", document.GetSyntaxRootAsync().Result.ToString());

            // Simplify names used in the document i.e. remove unnecessary namespace qualifiers.
            var newRoot = (SyntaxNode)document.GetSyntaxRootAsync().Result;
            newRoot = new SimplifyNamesAnnotionRewriter().Visit(newRoot);
            document = document.WithSyntaxRoot(newRoot);

            document = Simplifier.ReduceAsync(document).Result;
            Assert.Equal(@"using System.Diagnostics;
using System;
using System.IO;
namespace NS
{
    public class C
    {
    }
}
class Program
{
    public static void Main()
    {
        int i = 0; Console.WriteLine(i.ToString());
        Process p = Process.GetCurrentProcess();
        Console.WriteLine(p.Id);
    }
}", document.GetSyntaxRootAsync().Result.ToString());
        }

Example #2

        public static string Simplify(SyntaxNode node)
        {
            var source = node.ToString();
            var projectId = ProjectId.CreateNewId();
            var documentId = DocumentId.CreateNewId(projectId);

            var solution = new CustomWorkspace().CurrentSolution
                .AddProject(projectId, "MyProject", "MyProject", LanguageNames.CSharp)
                .AddMetadataReference(projectId, RoslynRDomUtilities.Mscorlib)
                .AddMetadataReference(projectId, AppDomain.CurrentDomain.GetAssemblies()
                    .Where(a => string.Compare(a.GetName().Name, "System", StringComparison.OrdinalIgnoreCase) == 0)
                    .Select(a => new MetadataFileReference(a.Location)).Single())
                .AddDocument(documentId, "MyFile.cs", source);
            var document = solution.GetDocument(documentId);

            // Format the document.
            document = Formatter.FormatAsync(document).Result;

            // Simplify names used in the document i.e. remove unnecessary namespace qualifiers.
            var newRoot = (SyntaxNode)document.GetSyntaxRootAsync().Result;
            newRoot = new SimplifyNamesAnnotionRewriter().Visit(newRoot);
            document = document.WithSyntaxRoot(newRoot);

            document = Simplifier.ReduceAsync(document).Result;
            var ret = document.GetSyntaxRootAsync().Result.ToString();
            return ret;
        }