File: tuple_assign.sail

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sail-ocaml 0.19.1%2Bdfsg5-1
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default Order dec
$include <prelude.sail>

val some_tuple : unit -> (int, int, int)

function some_tuple() = {
  print_endline("some_tuple");
  (1,2,3)
}

val all_updated : unit -> int

function all_updated() = {
  x : int = 0;
  y : int = 0;
  z : int = 0;
  (x,y,z) = some_tuple();
  x + y + z
}

val all_declared : unit -> int

function all_declared() = {
  (x,y,z) = some_tuple();
  x + y + z
}

/* Mixing updates and implicit declarations is not allowed
val bad_mixed : unit -> int

function bad_mixed() = {
  x : int = 0;
  z : int = 0;
  (x,y,z) = some_tuple();
  x + y + z
}
*/