private boolean isStaticFunction(Node node, NodeTraversal traversal) {
if (!node.isQualifiedName()) {
return false;
}
String root = NodeUtil.getRootOfQualifiedName(node).getQualifiedName();
if (globals == null) {
return false;
}
GlobalNamespace.Name fullName = globals.getOwnSlot(node.getQualifiedName());
GlobalNamespace.Name rootName = globals.getOwnSlot(root);
if (fullName == null || rootName == null) {
return false;
}
GlobalNamespace.Ref rootDecl = rootName.getDeclaration();
if (rootDecl == null) {
return false;
}
Node globalDeclNode = rootDecl.getNode();
if (globalDeclNode == null) {
return false; // don't know where the root came from so assume it could be anything
}
Var rootScope = traversal.getScope().getVar(root);
if (rootScope == null) {
return true; // root is not in the current scope, so it's a static function
}
Node scopeDeclNode = rootScope.getNode();
return scopeDeclNode == globalDeclNode; // is the global name currently in scope?
}
