static void Main(string[] args)
{
var tree = CSharpSyntaxTree.ParseText(
@"using System;
using System.Collection.Generic;
using System.Text;
namespace HelloWorld {
class Program {
static void Main(string[] args) {
Console.WriteLine(""Hello, world!"");
}
}
}"
);
var root = (CompilationUnitSyntax)tree.GetRoot();
var location = typeof(object).Assembly.Location;
var reference = MetadataReference.CreateFromFile(location);
var compilation = CSharpCompilation.Create("HelloWorld")
.AddReferences(reference)
.AddSyntaxTrees(tree);
var model = compilation.GetSemanticModel(tree);
var nameInfo = model.GetSymbolInfo(root.Usings[0].Name);
var systemSymbol = (INamespaceSymbol)nameInfo.Symbol;
foreach (var ns in systemSymbol.GetNamespaceMembers())
{
Console.WriteLine(ns.Name);
}
var helloWorldString = root.DescendantNodes()
.OfType <LiteralExpressionSyntax>()
.First();
var literalInfo = model.GetTypeInfo(helloWorldString);
var stringTypeSymbol = (INamedTypeSymbol)literalInfo.Type;
var names =
(from method in stringTypeSymbol.GetMembers().OfType <IMethodSymbol>()
where method.ReturnType.Equals(stringTypeSymbol) &&
method.DeclaredAccessibility == Accessibility.Public
select method.Name).Distinct();
foreach (var name in names)
{
Console.WriteLine(name);
}
var rq = RQName.From(stringTypeSymbol);
Console.ReadLine();
}
private Task <bool> RenameAsync(string oldFilePath, string newFilePath, bool isCaseSensitive, string oldName, string newName, ISymbol?symbol, string renameOperationName, CancellationToken token)
{
token.ThrowIfCancellationRequested();
return(_unconfiguredProjectTasksService.LoadedProjectAsync(async() =>
{
// Perform the rename operation
Solution?renamedSolution = await GetRenamedSolutionAsync(oldName, oldFilePath, newFilePath, isCaseSensitive, GetCurrentProject, token);
if (renamedSolution is null)
{
return false;
}
string rqName = RQName.From(symbol);
Solution?solution = GetCurrentProject()?.Solution;
if (solution is null)
{
return false;
}
IEnumerable <ProjectChanges> changes = renamedSolution.GetChanges(solution).GetProjectChanges();
DTE?dte = _dte.Value;
Assumes.NotNull(dte);
using var undo = UndoScope.Create(dte, renameOperationName);
// Notify other VS features that symbol is about to be renamed
NotifyBeforeRename(newName, rqName, changes);
// Try and apply the changes to the current solution
token.ThrowIfCancellationRequested();
if (!_roslynServices.ApplyChangesToSolution(renamedSolution.Workspace, renamedSolution))
{
return false;
}
// Notify other VS features that symbol has been renamed
NotifyAfterRename(newName, rqName, changes);
return true;
}));
}
internal async Task HandleRenameAsync(string oldFilePath, string newFilePath)
{
// Do not offer to rename types if the user changes the file extensions
if (!oldFilePath.EndsWith(Path.GetExtension(newFilePath), StringComparison.OrdinalIgnoreCase))
{
return;
}
if (GetCurrentProject() is null)
{
return;
}
// see if the current project contains a compilation
(bool success, bool isCaseSensitive) = await TryDetermineIfCompilationIsCaseSensitiveAsync(GetCurrentProject());
if (!success)
{
return;
}
// Check that the new name is a valid identifier in the current programming language
string oldName = Path.GetFileNameWithoutExtension(oldFilePath);
string newName = Path.GetFileNameWithoutExtension(newFilePath);
if (!CanHandleRename(oldName, newName, isCaseSensitive))
{
return;
}
// Check if there are any symbols that need to be renamed
ISymbol?symbol = await TryGetSymbolToRename(oldName, oldFilePath, newFilePath, isCaseSensitive, GetCurrentProject);
if (symbol is null)
{
return;
}
// Ask if the user wants to rename the symbol
bool userConfirmed = await CheckUserConfirmation(oldName);
if (!userConfirmed)
{
return;
}
// Try and apply the changes to the current solution
await _projectVsServices.ThreadingService.SwitchToUIThread();
string renameOperationName = string.Format(CultureInfo.CurrentCulture, VSResources.Renaming_Type_from_0_to_1, oldName, newName);
(WaitIndicatorResult result, bool renamedSolutionApplied) = _waitService.WaitForAsyncFunctionWithResult(
title: VSResources.Renaming_Type,
message: renameOperationName,
allowCancel: true,
async token =>
{
token.ThrowIfCancellationRequested();
return(await _unconfiguredProjectTasksService.LoadedProjectAsync(async() =>
{
// Perform the rename operation
Solution?renamedSolution = await GetRenamedSolutionAsync(oldName, oldFilePath, newFilePath, isCaseSensitive, GetCurrentProject, token);
if (renamedSolution is null)
{
return false;
}
string rqName = RQName.From(symbol);
Solution?solution = GetCurrentProject()?.Solution;
if (solution is null)
{
return false;
}
IEnumerable <ProjectChanges> changes = renamedSolution.GetChanges(solution).GetProjectChanges();
using UndoScope undo = await UndoScope.CreateAsync(_dte, _projectVsServices.ThreadingService, renameOperationName, token);
// Notify other VS features that symbol is about to be renamed
await NotifyBeforeRename(newName, rqName, changes);
// Try and apply the changes to the current solution
token.ThrowIfCancellationRequested();
bool applyChangesSucceeded = _roslynServices.ApplyChangesToSolution(renamedSolution.Workspace, renamedSolution);
if (applyChangesSucceeded)
{
// Notify other VS features that symbol has been renamed
await NotifyAfterRename(newName, rqName, changes);
}
return applyChangesSucceeded;
}));
});
// Do not warn the user if the rename was cancelled by the user
if (result.WasCanceled())
{
return;
}
// Notify the user if the rename could not be performed
if (!renamedSolutionApplied)
{
string failureMessage = string.Format(CultureInfo.CurrentCulture, VSResources.RenameSymbolFailed, oldName);
_userNotificationServices.ShowWarning(failureMessage);
}
Project?GetCurrentProject()
{
foreach (Project proj in _workspace.CurrentSolution.Projects)
{
if (StringComparers.Paths.Equals(proj.FilePath, _projectVsServices.Project.FullPath))
{
return(proj);
}
}
return(null);
}
}
