private static BraceMatchingResult?MatchBraces(SyntaxTreeBase syntaxTree, SourceLocation position, SyntaxKind leftKind, SyntaxKind rightKind)
{
return(((SyntaxNode)syntaxTree.Root).FindStartTokens(position)
.Select(t => MatchBraces(t, position, leftKind, rightKind))
.Where(r => r != null)
.FirstOrDefault());
}
public static async Task <ISyntaxToken> GetTouchingTokenAsync(
this SyntaxTreeBase syntaxTree,
SourceLocation position,
Predicate <ISyntaxToken> predicate,
CancellationToken cancellationToken,
bool findInsideTrivia = false)
{
Contract.ThrowIfNull(syntaxTree);
if (position > syntaxTree.Root.FullSourceRange.End)
{
return(default(ISyntaxToken));
}
var root = syntaxTree.Root;
var token = root.FindToken(position, findInsideTrivia);
if ((token.SourceRange.Contains(position) || token.SourceRange.End == position) && predicate(token))
{
return(token);
}
token = token.GetPreviousToken();
if (token != default(ISyntaxToken) && token.SourceRange.End == position && predicate(token))
{
return(token);
}
// SyntaxKind = None
return(default(ISyntaxToken));
}
public BraceMatchingResult?FindBraces(SyntaxTreeBase syntaxTree, SourceLocation position, CancellationToken cancellationToken)
{
return(_matchingKinds
.Select(k => MatchBraces(syntaxTree, position, k.Item1, k.Item2))
.Where(r => r != null)
.FirstOrDefault());
}
public string Format(SyntaxTreeBase tree, TextSpan span, OptionSet options, CancellationToken cancellationToken)
{
var text = tree.Text;
var edits = Formatter.GetEdits((SyntaxTree)tree, (SyntaxNode)tree.Root, span, _optionsService.GetFormattingOptions(options));
return(Formatter.ApplyEdits(text.ToString(), edits));
}
/// <summary>
/// Computes a span for a given field symbol, expanding to the outer
/// </summary>
private static TextSpan GetVariableDeclarationSpan(SyntaxTreeBase tree, SyntaxNode node, SourceFileSpan nodeFileSpan)
{
int spanStart = nodeFileSpan.Span.Start;
int spanEnd = nodeFileSpan.Span.End;
var fieldDeclaration = node.GetAncestor <VariableDeclarationStatementSyntax>();
if (fieldDeclaration != null)
{
var variables = fieldDeclaration.Declaration.Variables;
var fieldDeclarationFileSpan = tree.GetSourceFileSpan(fieldDeclaration.SourceRange);
if (fieldDeclarationFileSpan.IsInRootFile)
{
if (variables.FirstOrDefault() == node)
{
spanStart = fieldDeclarationFileSpan.Span.Start;
}
if (variables.LastOrDefault() == node)
{
spanEnd = fieldDeclarationFileSpan.Span.End;
}
}
}
return(TextSpan.FromBounds(spanStart, spanEnd));
}
internal static DocumentId GetDocumentIdForTree(SyntaxTreeBase tree)
{
using (s_syntaxTreeToIdMapLock.DisposableRead())
{
s_syntaxTreeToIdMap.TryGetValue(tree, out var id);
return(id);
}
}
public static void CheckForParseErrors(SyntaxTreeBase syntaxTree)
{
foreach (var diagnostic in syntaxTree.GetDiagnostics())
{
Debug.WriteLine(diagnostic.ToString());
}
Assert.Empty(syntaxTree.GetDiagnostics());
}
public static Task <ISyntaxToken> GetTouchingTokenAsync(
this SyntaxTreeBase syntaxTree,
SourceLocation position,
CancellationToken cancellationToken,
bool findInsideTrivia = false)
{
return(GetTouchingTokenAsync(syntaxTree, position, _ => true, cancellationToken, findInsideTrivia));
}
/// <summary>
/// Gets the document in this solution with the specified syntax tree.
/// </summary>
public LogicalDocument GetLogicalDocument(SyntaxTreeBase syntaxTree)
{
if (syntaxTree != null)
{
// is this tree known to be associated with a document?
return(LogicalDocument.GetDocumentIdForTree(syntaxTree));
}
return(null);
}
public Task <IFormattingResult> FormatAsync(SyntaxTreeBase tree, SyntaxNodeBase node, IEnumerable <TextSpan> spans, OptionSet options, CancellationToken cancellationToken)
{
var edits = new List <TextChange>();
foreach (var span in spans)
{
edits.AddRange(Formatter.GetEdits((SyntaxTree)tree, (SyntaxNode)node, span, _optionsService.GetFormattingOptions(options)));
}
return(Task.FromResult((IFormattingResult) new FormattingResult(edits)));
}
private static void BindSyntaxTreeToId(SyntaxTreeBase tree, DocumentId id)
{
using (s_syntaxTreeToIdMapLock.DisposableWrite())
{
if (s_syntaxTreeToIdMap.TryGetValue(tree, out var existingId))
{
Contract.ThrowIfFalse(existingId == id);
}
else
{
s_syntaxTreeToIdMap.Add(tree, id);
}
}
}
private void Clear()
{
if (_typingTimer != null)
{
_typingTimer.Stop();
_typingTimer.Tick -= HandleTypingTimerTimeout;
_typingTimer = null;
}
if (_activeWpfTextView != null)
{
_activeWpfTextView.Selection.SelectionChanged -= HandleSelectionChanged;
_activeWpfTextView.TextBuffer.Changed -= HandleTextBufferChanged;
_activeWpfTextView.LostAggregateFocus -= HandleTextViewLostFocus;
_activeWpfTextView = null;
}
_activeSyntaxTree = null;
_activeDocument = null;
TreeView.Items.Clear();
}
private IList <NavigationBarItem> GetMembersInTypes(
SyntaxTreeBase tree,
IEnumerable <INamespaceOrTypeSymbol> types,
CancellationToken cancellationToken)
{
//using (Logger.LogBlock(FunctionId.NavigationBar_ItemService_GetMembersInTypes_CSharp, cancellationToken))
{
var items = new List <NavigationBarItem>();
foreach (var type in types)
{
var memberItems = new List <NavigationBarItem>();
foreach (var member in type.GetMembers())
{
if (member.Kind == SymbolKind.Struct || member.Kind == SymbolKind.Interface)
{
continue;
}
memberItems.AddRange(CreateItems(
member,
null,
tree,
cancellationToken));
}
memberItems.Sort((x, y) =>
{
var textComparison = x.Text.CompareTo(y.Text);
return(textComparison != 0 ? textComparison : x.Grayed.CompareTo(y.Grayed));
});
var typeItems = CreateItems(type, memberItems, tree, cancellationToken);
items.AddRange(typeItems);
}
items.Sort((x1, x2) => x1.Text.CompareTo(x2.Text));
return(items);
}
}
private async Task <QuickInfoItem> GetQuickInfoItemAsync(
Document document,
SyntaxTreeBase syntaxTree,
ISyntaxToken token,
SourceLocation sourceLocation,
CancellationToken cancellationToken)
{
if (token != default(ISyntaxToken) &&
token.SourceRange.Contains(sourceLocation))
{
var deferredContent = await BuildContentAsync(document, token, cancellationToken).ConfigureAwait(false);
if (deferredContent != null)
{
var rootSpan = syntaxTree.GetSourceFileSpan(token.SourceRange).Span;
return(new QuickInfoItem(rootSpan, deferredContent));
}
}
return(null);
}
private static IEnumerable <INavigateToSearchResult> ConvertResult(
ISymbol declaredSymbol, Document document, SyntaxTreeBase syntaxTree,
NavigateToMatchKind matchKind)
{
var isCaseSensitive = false;
var kind = GetItemKind(declaredSymbol.Kind);
foreach (var location in declaredSymbol.Locations)
{
var sourceFileSpan = syntaxTree.GetSourceFileSpan(location);
if (sourceFileSpan.IsInRootFile)
{
var navigableItem = NavigableItemFactory.GetItemFromDeclaredSymbol(
declaredSymbol, document, sourceFileSpan);
yield return(new SearchResult(
document, declaredSymbol, kind, matchKind,
isCaseSensitive, navigableItem));
}
}
}
/// <summary>
/// Gets the document in this solution with the specified syntax tree.
/// </summary>
public Document GetDocument(SyntaxTreeBase syntaxTree)
{
if (syntaxTree != null)
{
// is this tree known to be associated with a document?
var docId = Document.GetDocumentIdForTree(syntaxTree);
if (docId != null)
{
// does this solution even have the document?
var document = this.GetDocument(docId);
if (document != null)
{
// does this document really have the syntax tree?
if (document.TryGetSyntaxTree(out var documentTree) && documentTree == syntaxTree)
{
return(document);
}
}
}
}
return(null);
}
private async void RefreshSyntaxVisualizer()
{
if (!IsVisible || _activeWpfTextView == null)
{
return;
}
var textBuffer = _activeWpfTextView.TextBuffer;
var currentSnapshot = textBuffer.CurrentSnapshot;
var contentType = currentSnapshot.ContentType;
if (!contentType.IsOfType(ContentTypeNames.ShaderToolsContentType))
{
return;
}
var document = _activeDocument = currentSnapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return;
}
try
{
_activeSyntaxTree = await System.Threading.Tasks.Task.Run(() => document.GetSyntaxTreeAsync(CancellationToken.None));
}
catch (Exception ex)
{
//Logger.Log("Failed to get syntax tree for syntax visualizer: " + ex);
return;
}
DisplaySyntaxTree();
NavigateFromSource();
}
/// <summary>
/// Get the current syntax tree for the document if the text is already loaded and the tree is already parsed.
/// In almost all cases, you should call <see cref="GetSyntaxTreeAsync"/> to fetch the tree, which will parse the tree
/// if it's not already parsed.
/// </summary>
public bool TryGetSyntaxTree(out SyntaxTreeBase syntaxTree)
{
return(_lazySyntaxTree.TryGetValue(out syntaxTree));
}
//public abstract void AddLexicalClassifications(SourceText text, TextSpan textSpan, List<ClassifiedSpan> result, CancellationToken cancellationToken); public abstract void AddSyntacticClassifications(SyntaxTreeBase syntaxTree, TextSpan textSpan, List <ClassifiedSpan> result, CancellationToken cancellationToken);
private static IList <NavigationBarItem> CreateItems(ISymbol symbol, IList <NavigationBarItem> childItems, SyntaxTreeBase tree, CancellationToken cancellationToken)
{
var result = new List <NavigationBarItem>();
if (symbol.Locations.Length == 0)
{
return(result);
}
var locationsLength = symbol.Kind == SymbolKind.Function
? symbol.Locations.Length
: 1;
for (var i = 0; i < locationsLength; i++)
{
if (cancellationToken.IsCancellationRequested)
{
return(SpecializedCollections.EmptyList <NavigationBarItem>());
}
// TODO: This is a hack, it assumes too much about ISymbol's properties.
var nameSourceRange = symbol.Locations[i];
var node = (SyntaxNode)symbol.DeclaringSyntaxNodes[i];
var nameFileSpan = tree.GetSourceFileSpan(nameSourceRange);
if (!nameFileSpan.IsInRootFile)
{
continue;
}
var nodeFileSpan = node.GetTextSpanSafe();
if (nodeFileSpan == null || !nodeFileSpan.Value.IsInRootFile)
{
continue;
}
var nodeSpan = nodeFileSpan.Value.Span;
if (symbol.Kind == SymbolKind.Field || symbol.Kind == SymbolKind.Variable)
{
nodeSpan = GetVariableDeclarationSpan(tree, node, nodeFileSpan.Value);
}
result.Add(new NavigationBarSymbolItem(
symbol.ToDisplayString(SymbolDisplayFormat.NavigationBar),
symbol.GetGlyph(),
SpecializedCollections.SingletonList(nodeSpan),
nameFileSpan.Span,
childItems));
}
return(result);
}
public CompilationBase CreateCompilation(SyntaxTreeBase syntaxTree)
{
return(new Compilation.Compilation((SyntaxTree)syntaxTree));
}
internal static IList <TextChange> GetFormattedTextChanges(SyntaxTreeBase tree, SyntaxNodeBase node, IEnumerable <TextSpan> spans, Workspace workspace, OptionSet options, CancellationToken cancellationToken)
{
return(GetFormattedTextChangesAsync(tree, node, spans, workspace, options, cancellationToken).WaitAndGetResult(cancellationToken));
}
internal static async Task <IList <TextChange> > GetFormattedTextChangesAsync(SyntaxTreeBase tree, SyntaxNodeBase node, IEnumerable <TextSpan> spans, Workspace workspace, OptionSet options, CancellationToken cancellationToken)
{
if (workspace == null)
{
throw new ArgumentNullException(nameof(workspace));
}
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
if (spans == null)
{
throw new ArgumentNullException(nameof(spans));
}
var languageFormatter = workspace.Services.GetLanguageServices(node.Language).GetService <ISyntaxFormattingService>();
if (languageFormatter != null)
{
options = options ?? workspace.Options;
return((await languageFormatter.FormatAsync(tree, node, spans, options, cancellationToken).ConfigureAwait(false)).GetTextChanges(cancellationToken));
}
else
{
return(SpecializedCollections.EmptyList <TextChange>());
}
}
private static MappedDiagnostic MapDiagnostic(SyntaxTreeBase syntaxTree, Diagnostic diagnostic, DiagnosticSource source, LogicalDocument logicalDocument)
{
var fileSpan = syntaxTree.GetSourceFileSpan(diagnostic.SourceRange);
return(new MappedDiagnostic(diagnostic, source, fileSpan, logicalDocument));
}
public override void AddSyntacticClassifications(SyntaxTreeBase syntaxTree, TextSpan textSpan, List <ClassifiedSpan> result, CancellationToken cancellationToken)
{
var worker = new SyntaxTaggerWorker(result, cancellationToken);
worker.ClassifySyntax((SyntaxTree)syntaxTree);
}