//scan(invocation.getArguments());
if (execNodeData.isEqualsExecRef && invocation.getArguments().size() == 1){
XpathBinaryOpExpression xpathBinOperation = xpathFactory.createBinaryOperation();
XpathOperatorMapping xpathBinOpMap = xpathFactory.createBinOpMapping();
XpathExprBinOpType xpathBinOp = xpathBinOpMap.getBinOp(BinaryOperatorKind.EQ);
scan(invocation.getArguments().get(0));
ASTNodeData arg = nodeDataStack.peek();
try {
if (targetNodeData.xpathExpr != null && arg.xpathExpr != null){
xpathBinOperation.setOperator(xpathBinOp);