// Equivalent AS:
//
// if (eventDispatcher != null)
MemberExpressionNode memberExpression =
AbstractSyntaxTreeUtil.generateGetterSelector(nodeFactory, EVENT_DISPATCHER_VAR, false);
LiteralNullNode literalNull = nodeFactory.literalNull();
BinaryExpressionNode binaryExpression = nodeFactory.binaryExpression(Tokens.STRICTNOTEQUALS_TOKEN,
memberExpression,
literalNull);
return nodeFactory.list(null, binaryExpression);
}