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+signature hashmap_FunsTheory =
+sig
+ type thm = Thm.thm
+
+ (* Definitions *)
+ val core_num_u32_max_body_def : thm
+ val core_num_u32_max_c_def : thm
+ val hash_key_fwd_def : thm
+ val hash_map_allocate_slots_fwd_def : thm
+ val hash_map_allocate_slots_loop_fwd_def : thm
+ val hash_map_clear_fwd_back_def : thm
+ val hash_map_clear_loop_fwd_back_def : thm
+ val hash_map_contains_key_fwd_def : thm
+ val hash_map_contains_key_in_list_fwd_def : thm
+ val hash_map_contains_key_in_list_loop_fwd_def : thm
+ val hash_map_get_fwd_def : thm
+ val hash_map_get_in_list_fwd_def : thm
+ val hash_map_get_in_list_loop_fwd_def : thm
+ val hash_map_get_mut_back_def : thm
+ val hash_map_get_mut_fwd_def : thm
+ val hash_map_get_mut_in_list_back_def : thm
+ val hash_map_get_mut_in_list_fwd_def : thm
+ val hash_map_get_mut_in_list_loop_back_def : thm
+ val hash_map_get_mut_in_list_loop_fwd_def : thm
+ val hash_map_insert_fwd_back_def : thm
+ val hash_map_insert_in_list_back_def : thm
+ val hash_map_insert_in_list_fwd_def : thm
+ val hash_map_insert_in_list_loop_back_def : thm
+ val hash_map_insert_in_list_loop_fwd_def : thm
+ val hash_map_insert_no_resize_fwd_back_def : thm
+ val hash_map_len_fwd_def : thm
+ val hash_map_move_elements_from_list_fwd_back_def : thm
+ val hash_map_move_elements_from_list_loop_fwd_back_def : thm
+ val hash_map_move_elements_fwd_back_def : thm
+ val hash_map_move_elements_loop_fwd_back_def : thm
+ val hash_map_new_fwd_def : thm
+ val hash_map_new_with_capacity_fwd_def : thm
+ val hash_map_remove_back_def : thm
+ val hash_map_remove_from_list_back_def : thm
+ val hash_map_remove_from_list_fwd_def : thm
+ val hash_map_remove_from_list_loop_back_def : thm
+ val hash_map_remove_from_list_loop_fwd_def : thm
+ val hash_map_remove_fwd_def : thm
+ val hash_map_try_resize_fwd_back_def : thm
+ val test1_fwd_def : thm
+
+ val hashmap_Funs_grammars : type_grammar.grammar * term_grammar.grammar
+(*
+ [hashmap_Types] Parent theory of "hashmap_Funs"
+
+ [core_num_u32_max_body_def] Definition
+
+ ⊢ core_num_u32_max_body = Return (int_to_u32 4294967295)
+
+ [core_num_u32_max_c_def] Definition
+
+ ⊢ core_num_u32_max_c = get_return_value core_num_u32_max_body
+
+ [hash_key_fwd_def] Definition
+
+ ⊢ ∀k. hash_key_fwd k = Return k
+
+ [hash_map_allocate_slots_fwd_def] Definition
+
+ ⊢ ∀slots n.
+ hash_map_allocate_slots_fwd slots n =
+ hash_map_allocate_slots_loop_fwd slots n
+
+ [hash_map_allocate_slots_loop_fwd_def] Definition
+
+ ⊢ ∀slots n.
+ hash_map_allocate_slots_loop_fwd slots n =
+ if usize_gt n (int_to_usize 0) then
+ do
+ slots0 <- vec_push_back slots ListNil;
+ n0 <- usize_sub n (int_to_usize 1);
+ hash_map_allocate_slots_loop_fwd slots0 n0
+ od
+ else Return slots
+
+ [hash_map_clear_fwd_back_def] Definition
+
+ ⊢ ∀self.
+ hash_map_clear_fwd_back self =
+ do
+ v <-
+ hash_map_clear_loop_fwd_back self.hash_map_slots
+ (int_to_usize 0);
+ Return
+ (self with
+ <|hash_map_num_entries := int_to_usize 0;
+ hash_map_slots := v|>)
+ od
+
+ [hash_map_clear_loop_fwd_back_def] Definition
+
+ ⊢ ∀slots i.
+ hash_map_clear_loop_fwd_back slots i =
+ (let
+ i0 = vec_len slots
+ in
+ if usize_lt i i0 then
+ do
+ i1 <- usize_add i (int_to_usize 1);
+ slots0 <- vec_index_mut_back slots i ListNil;
+ hash_map_clear_loop_fwd_back slots0 i1
+ od
+ else Return slots)
+
+ [hash_map_contains_key_fwd_def] Definition
+
+ ⊢ ∀self key.
+ hash_map_contains_key_fwd self key =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_fwd self.hash_map_slots hash_mod;
+ hash_map_contains_key_in_list_fwd key l
+ od
+
+ [hash_map_contains_key_in_list_fwd_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_contains_key_in_list_fwd key ls =
+ hash_map_contains_key_in_list_loop_fwd key ls
+
+ [hash_map_contains_key_in_list_loop_fwd_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_contains_key_in_list_loop_fwd key ls =
+ case ls of
+ ListCons ckey t tl =>
+ if ckey = key then Return T
+ else hash_map_contains_key_in_list_loop_fwd key tl
+ | ListNil => Return F
+
+ [hash_map_get_fwd_def] Definition
+
+ ⊢ ∀self key.
+ hash_map_get_fwd self key =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_fwd self.hash_map_slots hash_mod;
+ hash_map_get_in_list_fwd key l
+ od
+
+ [hash_map_get_in_list_fwd_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_get_in_list_fwd key ls =
+ hash_map_get_in_list_loop_fwd key ls
+
+ [hash_map_get_in_list_loop_fwd_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_get_in_list_loop_fwd key ls =
+ case ls of
+ ListCons ckey cvalue tl =>
+ if ckey = key then Return cvalue
+ else hash_map_get_in_list_loop_fwd key tl
+ | ListNil => Fail Failure
+
+ [hash_map_get_mut_back_def] Definition
+
+ ⊢ ∀self key ret.
+ hash_map_get_mut_back self key ret =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_mut_fwd self.hash_map_slots hash_mod;
+ l0 <- hash_map_get_mut_in_list_back l key ret;
+ v <- vec_index_mut_back self.hash_map_slots hash_mod l0;
+ Return (self with hash_map_slots := v)
+ od
+
+ [hash_map_get_mut_fwd_def] Definition
+
+ ⊢ ∀self key.
+ hash_map_get_mut_fwd self key =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_mut_fwd self.hash_map_slots hash_mod;
+ hash_map_get_mut_in_list_fwd l key
+ od
+
+ [hash_map_get_mut_in_list_back_def] Definition
+
+ ⊢ ∀ls key ret.
+ hash_map_get_mut_in_list_back ls key ret =
+ hash_map_get_mut_in_list_loop_back ls key ret
+
+ [hash_map_get_mut_in_list_fwd_def] Definition
+
+ ⊢ ∀ls key.
+ hash_map_get_mut_in_list_fwd ls key =
+ hash_map_get_mut_in_list_loop_fwd ls key
+
+ [hash_map_get_mut_in_list_loop_back_def] Definition
+
+ ⊢ ∀ls key ret.
+ hash_map_get_mut_in_list_loop_back ls key ret =
+ case ls of
+ ListCons ckey cvalue tl =>
+ if ckey = key then Return (ListCons ckey ret tl)
+ else
+ do
+ tl0 <- hash_map_get_mut_in_list_loop_back tl key ret;
+ Return (ListCons ckey cvalue tl0)
+ od
+ | ListNil => Fail Failure
+
+ [hash_map_get_mut_in_list_loop_fwd_def] Definition
+
+ ⊢ ∀ls key.
+ hash_map_get_mut_in_list_loop_fwd ls key =
+ case ls of
+ ListCons ckey cvalue tl =>
+ if ckey = key then Return cvalue
+ else hash_map_get_mut_in_list_loop_fwd tl key
+ | ListNil => Fail Failure
+
+ [hash_map_insert_fwd_back_def] Definition
+
+ ⊢ ∀self key value.
+ hash_map_insert_fwd_back self key value =
+ do
+ self0 <- hash_map_insert_no_resize_fwd_back self key value;
+ i <- hash_map_len_fwd self0;
+ if usize_gt i self0.hash_map_max_load then
+ hash_map_try_resize_fwd_back self0
+ else Return self0
+ od
+
+ [hash_map_insert_in_list_back_def] Definition
+
+ ⊢ ∀key value ls.
+ hash_map_insert_in_list_back key value ls =
+ hash_map_insert_in_list_loop_back key value ls
+
+ [hash_map_insert_in_list_fwd_def] Definition
+
+ ⊢ ∀key value ls.
+ hash_map_insert_in_list_fwd key value ls =
+ hash_map_insert_in_list_loop_fwd key value ls
+
+ [hash_map_insert_in_list_loop_back_def] Definition
+
+ ⊢ ∀key value ls.
+ hash_map_insert_in_list_loop_back key value ls =
+ case ls of
+ ListCons ckey cvalue tl =>
+ if ckey = key then Return (ListCons ckey value tl)
+ else
+ do
+ tl0 <- hash_map_insert_in_list_loop_back key value tl;
+ Return (ListCons ckey cvalue tl0)
+ od
+ | ListNil => (let l = ListNil in Return (ListCons key value l))
+
+ [hash_map_insert_in_list_loop_fwd_def] Definition
+
+ ⊢ ∀key value ls.
+ hash_map_insert_in_list_loop_fwd key value ls =
+ case ls of
+ ListCons ckey cvalue tl =>
+ if ckey = key then Return F
+ else hash_map_insert_in_list_loop_fwd key value tl
+ | ListNil => Return T
+
+ [hash_map_insert_no_resize_fwd_back_def] Definition
+
+ ⊢ ∀self key value.
+ hash_map_insert_no_resize_fwd_back self key value =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_mut_fwd self.hash_map_slots hash_mod;
+ inserted <- hash_map_insert_in_list_fwd key value l;
+ if inserted then
+ do
+ i0 <- usize_add self.hash_map_num_entries (int_to_usize 1);
+ l0 <- hash_map_insert_in_list_back key value l;
+ v <- vec_index_mut_back self.hash_map_slots hash_mod l0;
+ Return
+ (self with
+ <|hash_map_num_entries := i0; hash_map_slots := v|>)
+ od
+ else
+ do
+ l0 <- hash_map_insert_in_list_back key value l;
+ v <- vec_index_mut_back self.hash_map_slots hash_mod l0;
+ Return (self with hash_map_slots := v)
+ od
+ od
+
+ [hash_map_len_fwd_def] Definition
+
+ ⊢ ∀self. hash_map_len_fwd self = Return self.hash_map_num_entries
+
+ [hash_map_move_elements_from_list_fwd_back_def] Definition
+
+ ⊢ ∀ntable ls.
+ hash_map_move_elements_from_list_fwd_back ntable ls =
+ hash_map_move_elements_from_list_loop_fwd_back ntable ls
+
+ [hash_map_move_elements_from_list_loop_fwd_back_def] Definition
+
+ ⊢ ∀ntable ls.
+ hash_map_move_elements_from_list_loop_fwd_back ntable ls =
+ case ls of
+ ListCons k v tl =>
+ do
+ ntable0 <- hash_map_insert_no_resize_fwd_back ntable k v;
+ hash_map_move_elements_from_list_loop_fwd_back ntable0 tl
+ od
+ | ListNil => Return ntable
+
+ [hash_map_move_elements_fwd_back_def] Definition
+
+ ⊢ ∀ntable slots i.
+ hash_map_move_elements_fwd_back ntable slots i =
+ hash_map_move_elements_loop_fwd_back ntable slots i
+
+ [hash_map_move_elements_loop_fwd_back_def] Definition
+
+ ⊢ ∀ntable slots i.
+ hash_map_move_elements_loop_fwd_back ntable slots i =
+ (let
+ i0 = vec_len slots
+ in
+ if usize_lt i i0 then
+ do
+ l <- vec_index_mut_fwd slots i;
+ ls <<- mem_replace_fwd l ListNil;
+ ntable0 <-
+ hash_map_move_elements_from_list_fwd_back ntable ls;
+ i1 <- usize_add i (int_to_usize 1);
+ l0 <<- mem_replace_back l ListNil;
+ slots0 <- vec_index_mut_back slots i l0;
+ hash_map_move_elements_loop_fwd_back ntable0 slots0 i1
+ od
+ else Return (ntable,slots))
+
+ [hash_map_new_fwd_def] Definition
+
+ ⊢ hash_map_new_fwd =
+ hash_map_new_with_capacity_fwd (int_to_usize 32) (int_to_usize 4)
+ (int_to_usize 5)
+
+ [hash_map_new_with_capacity_fwd_def] Definition
+
+ ⊢ ∀capacity max_load_dividend max_load_divisor.
+ hash_map_new_with_capacity_fwd capacity max_load_dividend
+ max_load_divisor =
+ (let
+ v = vec_new
+ in
+ do
+ slots <- hash_map_allocate_slots_fwd v capacity;
+ i <- usize_mul capacity max_load_dividend;
+ i0 <- usize_div i max_load_divisor;
+ Return
+ <|hash_map_num_entries := int_to_usize 0;
+ hash_map_max_load_factor :=
+ (max_load_dividend,max_load_divisor);
+ hash_map_max_load := i0; hash_map_slots := slots|>
+ od)
+
+ [hash_map_remove_back_def] Definition
+
+ ⊢ ∀self key.
+ hash_map_remove_back self key =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_mut_fwd self.hash_map_slots hash_mod;
+ x <- hash_map_remove_from_list_fwd key l;
+ case x of
+ NONE =>
+ do
+ l0 <- hash_map_remove_from_list_back key l;
+ v <- vec_index_mut_back self.hash_map_slots hash_mod l0;
+ Return (self with hash_map_slots := v)
+ od
+ | SOME x0 =>
+ do
+ i0 <- usize_sub self.hash_map_num_entries (int_to_usize 1);
+ l0 <- hash_map_remove_from_list_back key l;
+ v <- vec_index_mut_back self.hash_map_slots hash_mod l0;
+ Return
+ (self with
+ <|hash_map_num_entries := i0; hash_map_slots := v|>)
+ od
+ od
+
+ [hash_map_remove_from_list_back_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_remove_from_list_back key ls =
+ hash_map_remove_from_list_loop_back key ls
+
+ [hash_map_remove_from_list_fwd_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_remove_from_list_fwd key ls =
+ hash_map_remove_from_list_loop_fwd key ls
+
+ [hash_map_remove_from_list_loop_back_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_remove_from_list_loop_back key ls =
+ case ls of
+ ListCons ckey t tl =>
+ if ckey = key then
+ (let
+ mv_ls = mem_replace_fwd (ListCons ckey t tl) ListNil
+ in
+ case mv_ls of
+ ListCons i cvalue tl0 => Return tl0
+ | ListNil => Fail Failure)
+ else
+ do
+ tl0 <- hash_map_remove_from_list_loop_back key tl;
+ Return (ListCons ckey t tl0)
+ od
+ | ListNil => Return ListNil
+
+ [hash_map_remove_from_list_loop_fwd_def] Definition
+
+ ⊢ ∀key ls.
+ hash_map_remove_from_list_loop_fwd key ls =
+ case ls of
+ ListCons ckey t tl =>
+ if ckey = key then
+ (let
+ mv_ls = mem_replace_fwd (ListCons ckey t tl) ListNil
+ in
+ case mv_ls of
+ ListCons i cvalue tl0 => Return (SOME cvalue)
+ | ListNil => Fail Failure)
+ else hash_map_remove_from_list_loop_fwd key tl
+ | ListNil => Return NONE
+
+ [hash_map_remove_fwd_def] Definition
+
+ ⊢ ∀self key.
+ hash_map_remove_fwd self key =
+ do
+ hash <- hash_key_fwd key;
+ i <<- vec_len self.hash_map_slots;
+ hash_mod <- usize_rem hash i;
+ l <- vec_index_mut_fwd self.hash_map_slots hash_mod;
+ x <- hash_map_remove_from_list_fwd key l;
+ case x of
+ NONE => Return NONE
+ | SOME x0 =>
+ monad_ignore_bind
+ (usize_sub self.hash_map_num_entries (int_to_usize 1))
+ (Return (SOME x0))
+ od
+
+ [hash_map_try_resize_fwd_back_def] Definition
+
+ ⊢ ∀self.
+ hash_map_try_resize_fwd_back self =
+ do
+ max_usize <- mk_usize (u32_to_int core_num_u32_max_c);
+ capacity <<- vec_len self.hash_map_slots;
+ n1 <- usize_div max_usize (int_to_usize 2);
+ (i,i0) <<- self.hash_map_max_load_factor;
+ i1 <- usize_div n1 i;
+ if usize_le capacity i1 then
+ do
+ i2 <- usize_mul capacity (int_to_usize 2);
+ ntable <- hash_map_new_with_capacity_fwd i2 i i0;
+ (ntable0,_) <-
+ hash_map_move_elements_fwd_back ntable
+ self.hash_map_slots (int_to_usize 0);
+ Return
+ (ntable0 with
+ <|hash_map_num_entries := self.hash_map_num_entries;
+ hash_map_max_load_factor := (i,i0)|>)
+ od
+ else Return (self with hash_map_max_load_factor := (i,i0))
+ od
+
+ [test1_fwd_def] Definition
+
+ ⊢ test1_fwd =
+ do
+ hm <- hash_map_new_fwd;
+ hm0 <-
+ hash_map_insert_fwd_back hm (int_to_usize 0) (int_to_u64 42);
+ hm1 <-
+ hash_map_insert_fwd_back hm0 (int_to_usize 128) (int_to_u64 18);
+ hm2 <-
+ hash_map_insert_fwd_back hm1 (int_to_usize 1024)
+ (int_to_u64 138);
+ hm3 <-
+ hash_map_insert_fwd_back hm2 (int_to_usize 1056)
+ (int_to_u64 256);
+ i <- hash_map_get_fwd hm3 (int_to_usize 128);
+ if i ≠ int_to_u64 18 then Fail Failure
+ else
+ do
+ hm4 <-
+ hash_map_get_mut_back hm3 (int_to_usize 1024)
+ (int_to_u64 56);
+ i0 <- hash_map_get_fwd hm4 (int_to_usize 1024);
+ if i0 ≠ int_to_u64 56 then Fail Failure
+ else
+ do
+ x <- hash_map_remove_fwd hm4 (int_to_usize 1024);
+ case x of
+ NONE => Fail Failure
+ | SOME x0 =>
+ if x0 ≠ int_to_u64 56 then Fail Failure
+ else
+ do
+ hm5 <- hash_map_remove_back hm4 (int_to_usize 1024);
+ i1 <- hash_map_get_fwd hm5 (int_to_usize 0);
+ if i1 ≠ int_to_u64 42 then Fail Failure
+ else
+ do
+ i2 <- hash_map_get_fwd hm5 (int_to_usize 128);
+ if i2 ≠ int_to_u64 18 then Fail Failure
+ else
+ do
+ i3 <-
+ hash_map_get_fwd hm5 (int_to_usize 1056);
+ if i3 ≠ int_to_u64 256 then Fail Failure
+ else Return ()
+ od
+ od
+ od
+ od
+ od
+ od
+
+
+*)
+end