/// <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));
}
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);
}
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));
}
}
}
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));
}