tools/testdata/manifest_small1.gjson

{
  "foo": "option",
#if defined(AAA)
  "bar": 1,
    #endif                   
#if defined(    BBB )
  "count": 2,
  #if defined(B || C)    
  "mmm": {},
#endif
#if defined(C)
  #if defined(D)  
  "ok": true,
#endif
#endif
#if defined(D)
#if defined(C)
  "ok2": false,
#endif
#endif
#endif
#if defined(CDE || AAA)
  "shouldBe": true,
#endif
  "so": 3.14
}