(* Generated by coq-of-rust *)
Require Import CoqOfRust.CoqOfRust.

(*
fn main() {
    let immutable_box = Box::new(5u32);

    println!("immutable_box contains {}", immutable_box);

    // Mutability error
    //*immutable_box = 4;

    // *Move* the box, changing the ownership (and mutability)
    let mut mutable_box = immutable_box;

    println!("mutable_box contains {}", mutable_box);

    // Modify the contents of the box
    *mutable_box = 4;

    println!("mutable_box now contains {}", mutable_box);
}
*)
Definition main (ε : list Value.t) (τ : list Ty.t) (α : list Value.t) : M :=
  match ε, τ, α with
  | [], [], [] =>
    ltac:(M.monadic
      (M.read (|
        let~ immutable_box :=
          M.alloc (|
            M.call_closure (|
              M.get_associated_function (|
                Ty.apply
                  (Ty.path "alloc::boxed::Box")
                  []
                  [ Ty.path "u32"; Ty.path "alloc::alloc::Global" ],
                "new",
                []
              |),
              [ Value.Integer IntegerKind.U32 5 ]
            |)
          |) in
        let~ _ :=
          let~ _ :=
            M.alloc (|
              M.call_closure (|
                M.get_function (| "std::io::stdio::_print", [] |),
                [
                  M.call_closure (|
                    M.get_associated_function (| Ty.path "core::fmt::Arguments", "new_v1", [] |),
                    [
                      M.alloc (|
                        Value.Array
                          [
                            M.read (| Value.String "immutable_box contains " |);
                            M.read (| Value.String "
" |)
                          ]
                      |);
                      M.alloc (|
                        Value.Array
                          [
                            M.call_closure (|
                              M.get_associated_function (|
                                Ty.path "core::fmt::rt::Argument",
                                "new_display",
                                [
                                  Ty.apply
                                    (Ty.path "alloc::boxed::Box")
                                    []
                                    [ Ty.path "u32"; Ty.path "alloc::alloc::Global" ]
                                ]
                              |),
                              [ immutable_box ]
                            |)
                          ]
                      |)
                    ]
                  |)
                ]
              |)
            |) in
          M.alloc (| Value.Tuple [] |) in
        let~ mutable_box := M.copy (| immutable_box |) in
        let~ _ :=
          let~ _ :=
            M.alloc (|
              M.call_closure (|
                M.get_function (| "std::io::stdio::_print", [] |),
                [
                  M.call_closure (|
                    M.get_associated_function (| Ty.path "core::fmt::Arguments", "new_v1", [] |),
                    [
                      M.alloc (|
                        Value.Array
                          [
                            M.read (| Value.String "mutable_box contains " |);
                            M.read (| Value.String "
" |)
                          ]
                      |);
                      M.alloc (|
                        Value.Array
                          [
                            M.call_closure (|
                              M.get_associated_function (|
                                Ty.path "core::fmt::rt::Argument",
                                "new_display",
                                [
                                  Ty.apply
                                    (Ty.path "alloc::boxed::Box")
                                    []
                                    [ Ty.path "u32"; Ty.path "alloc::alloc::Global" ]
                                ]
                              |),
                              [ mutable_box ]
                            |)
                          ]
                      |)
                    ]
                  |)
                ]
              |)
            |) in
          M.alloc (| Value.Tuple [] |) in
        let~ _ := M.write (| M.read (| mutable_box |), Value.Integer IntegerKind.U32 4 |) in
        let~ _ :=
          let~ _ :=
            M.alloc (|
              M.call_closure (|
                M.get_function (| "std::io::stdio::_print", [] |),
                [
                  M.call_closure (|
                    M.get_associated_function (| Ty.path "core::fmt::Arguments", "new_v1", [] |),
                    [
                      M.alloc (|
                        Value.Array
                          [
                            M.read (| Value.String "mutable_box now contains " |);
                            M.read (| Value.String "
" |)
                          ]
                      |);
                      M.alloc (|
                        Value.Array
                          [
                            M.call_closure (|
                              M.get_associated_function (|
                                Ty.path "core::fmt::rt::Argument",
                                "new_display",
                                [
                                  Ty.apply
                                    (Ty.path "alloc::boxed::Box")
                                    []
                                    [ Ty.path "u32"; Ty.path "alloc::alloc::Global" ]
                                ]
                              |),
                              [ mutable_box ]
                            |)
                          ]
                      |)
                    ]
                  |)
                ]
              |)
            |) in
          M.alloc (| Value.Tuple [] |) in
        M.alloc (| Value.Tuple [] |)
      |)))
  | _, _, _ => M.impossible "wrong number of arguments"
  end.

Axiom Function_main : M.IsFunction "scoping_rules_ownership_and_rules_mutablity::main" main.
