test/tall/expression/collection_null_aware.stmt

40 columns                              |
(experiment null-aware-elements)
>>> List element.
var list = [  ?  x  ];
<<< 3.8
var list = [?x];
>>> Set element.
var set = {  ?  x  };
<<< 3.8
var set = {?x};
>>> Map key.
var map = {  ?  key  : value};
<<< 3.8
var map = {?key: value};
>>> Map value.
var map = { key:  ?  value  };
<<< 3.8
var map = {key: ?value};
>>> Both key and value.
var map = {  ?  key  :  ?  value  };
<<< 3.8
var map = {?key: ?value};
>>> Split inside element.
var list = [?(veryLongExpression +thatIsForcedToSplit)];
<<< 3.8
var list = [
  ?(veryLongExpression +
      thatIsForcedToSplit),
];
>>> (experiment dot-shorthands) Preserves space for dot shorthand.
### If the space between `?` and `.` is removed, it would become a single `?.`
### token and thus a parse error.
var list = [
  ?.  property  ,
  ?  .  invocation  (  )  ,
  ?  .  new  (  )  ,
];
<<< 3.10
var list = [
  ?.property,
  ?.invocation(),
  ?.new(),
];
>>> (experiment dot-shorthands) Ambiguous dot shorthand versus null-aware.
### Because there is no space in "?.", it must be a null-aware access in a map.
c = {  e1  ?.  e2  :  e3  };
<<< 3.10
c = {e1?.e2: e3};
>>> (experiment dot-shorthands) Ambiguous dot shorthand versus null-aware.
### Because there is a space in "? .", it must be a dot shorthand in a set.
c = {  e1  ?  .  e2  :  e3  };
<<< 3.10
c = {e1 ? .e2 : e3};