public TypeNode(TypeNodeKey key, string?filePath, IEnumerable <string> associatedFiles, string fullMetadataName, bool isNestedType, ProjectIdentifier?project)
{
Identifier = key.Identifier;
FilePath = filePath;
FullMetadataName = fullMetadataName;
IsNestedType = isNestedType;
Project = project;
AssociatedFiles.AddRange(associatedFiles);
Key = key;
}
private TypeNode GetOrCreateNode(ITypeSymbol symbol, CompilationCache cache)
{
var identifier = symbol.ToIdentifier();
var key = new TypeNodeKey(identifier);
if (!_nodes.TryGetValue(key, out var node))
{
node = CreateTypeNodeForSymbol(symbol, key, cache);
AddNode(node);
}
return((TypeNode)node);
}
private static async Task BuildGraph(NodeGraph graph, CompilationCache compilationCache, IEnumerable <ProjectIdentifier> projects, CancellationToken ct)
{
var knownNodes = new Dictionary <TypeIdentifier, TypeNode>();
foreach (var project in projects)
{
var syntaxTrees = await compilationCache.GetSyntaxTreesForProject(project, ct);
// We use a hashset here because different SyntaxTrees may declare the same symbol (eg partial definitions)
// Note: it's safe to hash by ITypeSymbol because they're all coming from the same Compilation
var declaredSymbols = new HashSet <ITypeSymbol>();
foreach (var syntaxTree in syntaxTrees)
{
if (ct.IsCancellationRequested)
{
return;
}
var root = await syntaxTree.GetRootAsync(ct);
var semanticModel = await compilationCache.GetSemanticModel(syntaxTree, project, ct);
if (semanticModel == null)
{
continue;
}
declaredSymbols.UnionWith(graph.GetIncludedSymbolsFromSyntaxRoot(root, semanticModel));
}
foreach (var symbol in declaredSymbols)
{
if (ct.IsCancellationRequested)
{
return;
}
var node = GetFromKnownNodes(symbol, compilationCache);
await foreach (var dependency in symbol.GetTypeDependencies(compilationCache, project, includeExternalMetadata: false, ct))
{
if (graph.IsSymbolIncluded(dependency))
{
var dependencyNode = GetFromKnownNodes(dependency, compilationCache);
if (node != dependencyNode)
{
node.AddForwardLink(dependencyNode, GetLinkType(dependency, symbol));
}
}
}
}
TypeNode GetFromKnownNodes(ITypeSymbol symbol, CompilationCache cache)
{
var identifier = symbol.ToIdentifier();
if (!knownNodes.TryGetValue(identifier, out var node))
{
var key = new TypeNodeKey(identifier);
node = CreateTypeNodeForSymbol(symbol, key, cache);
knownNodes[identifier] = node;
graph.AddNode(node);
}
return(node);
}
}
}
private static TypeNode CreateTypeNodeForSymbol(ITypeSymbol symbol, TypeNodeKey key, CompilationCache cache)
{
var associatedFiles = GetAssociatedFiles(symbol);
return(new TypeNode(key, symbol.GetPreferredDeclaration(), associatedFiles, symbol.GetFullMetadataName(), isNestedType: symbol.ContainingType != null, cache.GetContainingProject(associatedFiles)?.ToIdentifier()));
}