First commit

runtime-linux/antlr4-runtime/tree/xpath/XPathWildcardElement.cpp

@@ -0,0 +1,24 @@
+/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
+ * Use of this file is governed by the BSD 3-clause license that
+ * can be found in the LICENSE.txt file in the project root.
+ */
+
+#include "XPath.h"
+#include "tree/ParseTree.h"
+#include "tree/Trees.h"
+
+#include "XPathWildcardElement.h"
+
+using namespace antlr4::tree;
+using namespace antlr4::tree::xpath;
+
+XPathWildcardElement::XPathWildcardElement() : XPathElement(XPath::WILDCARD) {
+}
+
+std::vector<ParseTree *> XPathWildcardElement::evaluate(ParseTree *t) {
+  if (_invert) {
+    return {}; // !* is weird but valid (empty)
+  }
+
+  return t->children;
+}