private static bool IsNamespaceName(NameSyntax name)
{
while (name.Parent is NameSyntax)
{
name = (NameSyntax)name.Parent;
}
return name.IsParentKind(SyntaxKind.NamespaceDeclaration);
}
private static bool IsQualifiedNameInUsingDirective(SemanticModel model, NameSyntax name, TypeSyntax reducedName)
{
while (name.IsLeftSideOfQualifiedName())
{
name = (NameSyntax)name.Parent;
}
if (name.IsParentKind(SyntaxKind.UsingDirective) &&
((UsingDirectiveSyntax)name.Parent).Alias == null)
{
// We're a qualified name in a using. We don't want to reduce this name as people like
// fully qualified names in usings so they can properly tell what the name is resolving
// to.
// However, if this name is actually referencing the special Script class, then we do
// want to allow that to be reduced.
return !IsInScriptClass(model, name);
}
return false;
}
private bool TryClassifySymbol(
NameSyntax name,
ISymbol symbol,
SemanticModel semanticModel,
CancellationToken cancellationToken,
out ClassifiedSpan classifiedSpan)
{
if (symbol != null)
{
// see through using aliases
if (symbol.Kind == SymbolKind.Alias)
{
symbol = (symbol as IAliasSymbol).Target;
}
else if (symbol.IsConstructor() && name.IsParentKind(SyntaxKind.Attribute))
{
symbol = symbol.ContainingType;
}
}
if (name.IsVar &&
IsInVarContext(name))
{
var alias = semanticModel.GetAliasInfo(name, cancellationToken);
if (alias == null || alias.Name != "var")
{
if (!IsSymbolCalledVar(symbol))
{
// We bound to a symbol. If we bound to a symbol called "var" then we want to
// classify this appropriately as a type. Otherwise, we want to classify this as
// a keyword.
classifiedSpan = new ClassifiedSpan(name.Span, ClassificationTypeNames.Keyword);
return true;
}
}
}
if (symbol != null)
{
// Use .Equals since we can't rely on object identity for constructed types.
if (symbol is ITypeSymbol)
{
var classification = GetClassificationForType((ITypeSymbol)symbol);
if (classification != null)
{
var token = name.GetNameToken();
classifiedSpan = new ClassifiedSpan(token.Span, classification);
return true;
}
}
}
classifiedSpan = default(ClassifiedSpan);
return false;
}
