/// <summary>
/// Retrieves list of packages available to the current file.
/// Consists of packages in the base library and packages
/// added via 'library' statements.
/// </summary>
public static IEnumerable <string> GetFilePackageNames(this AstRoot ast)
{
// TODO: results can be cached until AST actually changes
AstLibrarySearch search = new AstLibrarySearch();
ast.Accept(search, null);
return(search.PackageNames);
}
public static IReadOnlyCollection <IAstNode> FindElements(this AstRoot tree, Func <IAstNode, bool> filter)
{
MultipleElementFinder finder = new MultipleElementFinder(filter);
tree.Accept(finder, null);
if (finder.Result.Count == 0)
{
return(new IAstNode[0]);
}
return(new ReadOnlyCollection <IAstNode>(finder.Result));
}