title: Apache Thrift: Assign default values to enclosed struct
body: <p>In an IDL file, I have</p>
  
  <pre><code>struct CaseInfo {
      1: CaseID = '',
      2: EvID = 'foobar',
  }
  
  struct Case {
      1: CaseInfo CaseInfo,
      2: string key = '',
  }
  </code></pre>
  
  <p>When an instance of a Case object is created, CaseInfo is simply null; it doesn't contain a default CaseInfo object. What is the syntax for setting the defaults of such an object?</p>