public ASTFinder(SyntaxTree root_, Type type_, ASTCheck check_ = null)
{
_root = root_;
_type = type_;
_check = check_;
}
public static T Find <T>(SyntaxTree root, ASTCheck check = null) where T : SyntaxTree
{
var finder = new ASTFinder(root, typeof(T), check);
return((T)finder.Find());
}