public override async Task ProvideCompletionsAsync(CompletionContext context)
{
var document = context.Document;
var position = context.Position;
var cancellationToken = context.CancellationToken;
var tree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
// first try to get the #r string literal token. If we couldn't, then we're not in a #r
// reference directive and we immediately bail.
SyntaxToken stringLiteral;
if (!TryGetStringLiteralToken(tree, position, out stringLiteral, cancellationToken))
{
return;
}
var textChangeSpan = GetTextChangeSpan(stringLiteral, position);
var gacHelper = new GlobalAssemblyCacheCompletionHelper(textChangeSpan, _rules);
var referenceResolver = document.Project.CompilationOptions.MetadataReferenceResolver;
// TODO: https://github.com/dotnet/roslyn/issues/5263
// Avoid dependency on a specific resolvers.
// The search paths should be provided by specialized workspaces:
// - InteractiveWorkspace for interactive window
// - ScriptWorkspace for loose .csx files (we don't have such workspace today)
ImmutableArray <string> searchPaths;
RuntimeMetadataReferenceResolver rtResolver;
WorkspaceMetadataFileReferenceResolver workspaceResolver;
if ((rtResolver = referenceResolver as RuntimeMetadataReferenceResolver) != null)
{
searchPaths = rtResolver.PathResolver.SearchPaths;
}
else if ((workspaceResolver = referenceResolver as WorkspaceMetadataFileReferenceResolver) != null)
{
searchPaths = workspaceResolver.PathResolver.SearchPaths;
}
else
{
return;
}
var fileSystemHelper = new FileSystemCompletionHelper(
this, textChangeSpan,
new CurrentWorkingDirectoryDiscoveryService(Directory.GetCurrentDirectory()),
Microsoft.CodeAnalysis.Glyph.OpenFolder,
Microsoft.CodeAnalysis.Glyph.Assembly, searchPaths, new[] { ".dll", ".exe" }, path => path.Contains(","), _rules);
var pathThroughLastSlash = GetPathThroughLastSlash(stringLiteral, position);
var documentPath = document.Project.IsSubmission ? null : document.FilePath;
context.AddItems(gacHelper.GetItems(pathThroughLastSlash, documentPath));
context.AddItems(fileSystemHelper.GetItems(pathThroughLastSlash, documentPath));
}
protected override async Task ProvideCompletionsAsync(CompletionContext context, string pathThroughLastSlash)
{
if (GacFileResolver.IsAvailable && pathThroughLastSlash.IndexOfAny(s_pathIndicators) < 0)
{
var gacHelper = new GlobalAssemblyCacheCompletionHelper(s_rules);
context.AddItems(await gacHelper.GetItemsAsync(pathThroughLastSlash, context.CancellationToken).ConfigureAwait(false));
}
if (pathThroughLastSlash.IndexOf(',') < 0)
{
var helper = GetFileSystemCompletionHelper(context.Document, Microsoft.CodeAnalysis.Glyph.Assembly, ImmutableArray.Create(".dll", ".exe"), s_rules);
context.AddItems(await helper.GetItemsAsync(pathThroughLastSlash, context.CancellationToken).ConfigureAwait(false));
}
}
protected override async Task ProvideCompletionsAsync(CompletionContext context, string pathThroughLastSlash)
{
if (GacFileResolver.IsAvailable && pathThroughLastSlash.IndexOfAny(s_pathIndicators) < 0)
{
var gacHelper = new GlobalAssemblyCacheCompletionHelper(s_rules);
context.AddItems(await gacHelper.GetItemsAsync(pathThroughLastSlash, context.CancellationToken).ConfigureAwait(false));
}
if (pathThroughLastSlash.IndexOf(',') < 0)
{
var text = await context.Document.GetTextAsync(context.CancellationToken).ConfigureAwait(false);
var fileSystemHelper = GetFileSystemCompletionHelper(text, context.Document);
context.AddItems(await fileSystemHelper.GetItemsAsync(pathThroughLastSlash, context.CancellationToken).ConfigureAwait(false));
}
}