test/tall/expression/collection_if_spread_set.stmt

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### Tests for spread (and unspread) sets inside if elements.
>>> Spread then element stays unsplit if it fits.
var set = {if (c) ...{1, 2}};
<<<
var set = {
  if (c) ...{1, 2},
};
>>> Spread else stays unsplit if it fits.
var set = {if (c) 1 else ...{2, 3}};
<<<
var set = {
  if (c) 1 else ...{2, 3},
};
>>> Spread then and else stay unsplit if they fit.
var set = {if (c) ...{1, 2} else ...{3, 4}};
<<<
var set = {
  if (c) ...{1, 2} else ...{3, 4},
};
>>> Spread then formats like block if it splits.
var set = {if (c) ...{element1, element2, element3}};
<<<
var set = {
  if (c) ...{
    element1,
    element2,
    element3,
  },
};
>>> Both spreads split if then spread splits.
var set = {if (c) ...{element1, element2, element3} else ...{1, 2}};
<<<
var set = {
  if (c) ...{
    element1,
    element2,
    element3,
  } else ...{
    1,
    2,
  },
};
>>> Both spreads split if else spread splits.
var set = {if (c) ...{1, 2} else ...{element1, element2, element3}};
<<<
var set = {
  if (c) ...{
    1,
    2,
  } else ...{
    element1,
    element2,
    element3,
  },
};
>>> An empty spread then is not treated like block.
var set = {
  if (condition) ...{} else ...{veryLongElement,veryLongElement,veryLongElement,}
};
<<<
var set = {
  if (condition)
    ...{}
  else ...{
    veryLongElement,
    veryLongElement,
    veryLongElement,
  },
};
>>> An empty spread else is not treated like block.
var set = {
  if (condition) ...{veryLongElement,veryLongElement,veryLongElement,} else ...{}
};
<<<
var set = {
  if (condition) ...{
    veryLongElement,
    veryLongElement,
    veryLongElement,
  } else
    ...{},
};
>>> An empty spread then doesn't split.
var set = {
  if (condition) ...{} else veryLongIdentifier
};
<<<
var set = {
  if (condition)
    ...{}
  else
    veryLongIdentifier,
};
>>> An empty spread else doesn't split.
var set = {
  if (condition) veryLongIdentifier else ...{}
};
<<<
var set = {
  if (condition)
    veryLongIdentifier
  else
    ...{},
};
>>> An empty spread then with a comment is treated like a block.
var set = {
  if (condition) ...{// c
  } else ...{veryLongElement,veryLongElement,veryLongElement,}
};
<<<
var set = {
  if (condition) ...{
    // c
  } else ...{
    veryLongElement,
    veryLongElement,
    veryLongElement,
  },
};
>>> An empty spread else with a comment treated like a block.
var set = {
  if (condition) ...{veryLongElement,veryLongElement,veryLongElement,} else ...{// c
  }
};
<<<
var set = {
  if (condition) ...{
    veryLongElement,
    veryLongElement,
    veryLongElement,
  } else ...{
    // c
  },
};
>>> A single-line list that isn't spread.
var set = {if (a) {b}};
<<<
var set = {
  if (a) {b},
};
>>> A collection that isn't spread wraps and indents.
var set = {if (condition) {element1, element2, element3}};
<<<
var set = {
  if (condition)
    {element1, element2, element3},
};
>>>
var set = {if (c) {element1, element2, element3, element4}};
<<<
var set = {
  if (c)
    {
      element1,
      element2,
      element3,
      element4,
    },
};
>>>
var set = {if (c) {element1, element2, element3} else thing};
<<<
var set = {
  if (c)
    {element1, element2, element3}
  else
    thing,
};
>>>
var set = {if (c) {element1, element2, element3, element4} else thing};
<<<
var set = {
  if (c)
    {
      element1,
      element2,
      element3,
      element4,
    }
  else
    thing,
};
>>>
var set = {if (c) thing else {element1, element2, element3}};
<<<
var set = {
  if (c)
    thing
  else
    {element1, element2, element3},
};
>>>
var set = {if (c) thing else {element1, element2, element3, element4}};
<<<
var set = {
  if (c)
    thing
  else
    {
      element1,
      element2,
      element3,
      element4,
    },
};