internal async Task<IEnumerable<ISymbol>> GetMatchingTypesAsync(
Microsoft.CodeAnalysis.Project project, SemanticModel semanticModel, SyntaxNode node, CancellationToken cancellationToken)
{
// Can't be on the right hand side of binary expression (like 'dot').
cancellationToken.ThrowIfCancellationRequested();
string name;
int arity;
node.GetNameAndArityOfSimpleName(out name, out arity);
var symbols = await SymbolFinder.FindDeclarationsAsync(project, name, this.IgnoreCase, SymbolFilter.Type, cancellationToken).ConfigureAwait(false);
// also lookup type symbols with the "Attribute" suffix.
var inAttributeContext = node.IsAttributeName();
if (inAttributeContext)
{
symbols = symbols.Concat(
await SymbolFinder.FindDeclarationsAsync(project, name + "Attribute", this.IgnoreCase, SymbolFilter.Type, cancellationToken).ConfigureAwait(false));
}
var accessibleTypeSymbols = symbols
.OfType<INamedTypeSymbol>()
.Where(s => (arity == 0 || s.GetArity() == arity)
&& s.IsAccessibleWithin(semanticModel.Compilation.Assembly)
&& (!inAttributeContext || s.IsAttribute())
&& HasValidContainer(s))
.ToList();
return accessibleTypeSymbols;
}
internal async Task<IEnumerable<ISymbol>> GetMatchingNamespacesAsync(
Microsoft.CodeAnalysis.Project project,
SemanticModel semanticModel,
SyntaxNode simpleName,
CancellationToken cancellationToken)
{
if (simpleName.IsAttributeName())
{
return null;
}
string name;
int arity;
simpleName.GetNameAndArityOfSimpleName(out name, out arity);
if (cancellationToken.IsCancellationRequested)
{
return null;
}
var symbols = await SymbolFinder.FindDeclarationsAsync(project, name, this.IgnoreCase, SymbolFilter.Namespace, cancellationToken).ConfigureAwait(false);
var namespaces = symbols
.OfType<INamespaceSymbol>()
.Where(n => !n.IsGlobalNamespace &&
HasAccessibleTypes(n, semanticModel, cancellationToken));
return namespaces;
}
private static void CalculateContext(SyntaxNode node, out string name, out int arity, out bool inAttributeContext, out bool hasIncompleteParentMember)
{
// Has to be a simple identifier or generic name.
node.GetNameAndArityOfSimpleName(out name, out arity);
inAttributeContext = node.IsAttributeName();
hasIncompleteParentMember = node.HasIncompleteParentMember();
}
