[ocamlformat] Upgrade base and ocamlformat

Summary:
Upgrade ocamlformat to 0.3, and (necessarily) base to v0.10.0.

- Fix accumulated mis-formatting
- Update opam.lock to unbreak clean build
- Update to base v0.10.0
- Update opam.lock for base
- Update offline opam repo
- Everyone should already have removed their ocamlformat pin
- ocamlformat 0.3 supports output to stdout natively
- bump version of ocamlformat

Reviewed By: jeremydubreil

Differential Revision: D6636741

fbshipit-source-id: 41a56a8

.ocamlformat

@@ -1,3 +1,3 @@
 margin 100
 sparse true
-version v0.2
+version 0.3

Makefile

@@ -600,7 +600,6 @@ endif
 devsetup: Makefile.autoconf
 	$(QUIET)[ $(OPAM) != "no" ] || (echo 'No `opam` found, aborting setup.' >&2; exit 1)
 	$(QUIET)$(call silent_on_success,installing $(OPAM_DEV_DEPS),\
-	  OPAMSWITCH=$(OPAMSWITCH); $(OPAM) pin remove --yes ocamlformat; \
 	  OPAMSWITCH=$(OPAMSWITCH); $(OPAM) install --yes --no-checksum user-setup $(OPAM_DEV_DEPS))
 	$(QUIET)echo '$(TERM_INFO)*** Running `opam config setup -a`$(TERM_RESET)' >&2
 	$(QUIET)OPAMSWITCH=$(OPAMSWITCH); $(OPAM) config --yes setup -a

infer/src/IR/AccessPath.ml

@@ -202,7 +202,6 @@ module Raw = struct
 
   let is_prefix ((base1, path1) as ap1) ((base2, path2) as ap2) =
     if phys_equal ap1 ap2 then true else equal_base base1 base2 && is_prefix_path path1 path2
-
 end
 
 module Abs = struct
@@ -256,7 +255,6 @@ module Abs = struct
         Raw.pp fmt access_path
     | Abstracted access_path ->
         F.fprintf fmt "%a*" Raw.pp access_path
-
 end
 
 include Raw

infer/src/IR/Attributes.ml

@@ -132,4 +132,3 @@ let find_file_capturing_procedure pname =
             `Source
       in
       (source_file, origin) )
-

infer/src/IR/CallFlags.ml

@@ -37,4 +37,3 @@ let default =
   ; cf_is_objc_block= false
   ; cf_with_block_parameters= false
   ; cf_targets= [] }
-

infer/src/IR/Cfg.ml

@@ -631,4 +631,3 @@ let pp_proc_signatures fmt cfg =
 let exists_for_source_file source =
   (* simplistic implementation that allocates the cfg as this is only used for reactive capture for now *)
   load source |> Option.is_some
-

infer/src/IR/Cg.ml

@@ -337,4 +337,3 @@ let save_call_graph_dotty source (g: t) =
   let outc = Out_channel.create (DB.filename_to_string fname_dot) in
   let fmt = F.formatter_of_out_channel outc in
   pp_graph_dotty g fmt ; Out_channel.close outc
-

infer/src/IR/Const.ml

@@ -70,4 +70,3 @@ let isminusone_int_float = function
       true
   | _ ->
       false
-

infer/src/IR/DecompiledExp.ml

@@ -137,4 +137,3 @@ let rec has_tmp_var = function
       has_tmp_var dexp || List.exists ~f:has_tmp_var dexp_list
   | Dconst _ | Dunknown | Dsizeof (_, None, _) ->
       false
-

infer/src/IR/Errlog.ml

@@ -65,7 +65,7 @@ let compute_local_exception_line loc_trace =
   snd (List_.fold_until ~init:(`Continue (None, None)) ~f:compute_local_exception_line loc_trace)
 
 
-type node_id_key = {node_id: int; node_key: Digest.t}
+type node_id_key = {node_id: int; node_key: Caml.Digest.t}
 
 type err_key =
   { err_kind: Exceptions.err_kind
@@ -113,7 +113,6 @@ module ErrLogHash = struct
         (key1.err_kind, key1.in_footprint, key1.err_name)
         (key2.err_kind, key2.in_footprint, key2.err_name)
       && Localise.error_desc_equal key1.err_desc key2.err_desc
-
   end
 
   include Hashtbl.Make (Key)
@@ -147,12 +146,14 @@ let fold (f: err_key -> err_data -> 'a -> 'a) t acc =
     (fun err_key set acc -> ErrDataSet.fold (fun err_data acc -> f err_key err_data acc) set acc)
     t acc
 
+
 (** Return the number of elements in the error log which satisfy [filter] *)
 let size filter (err_log: t) =
   let count = ref 0 in
   ErrLogHash.iter
     (fun key err_datas ->
-      if filter key.err_kind key.in_footprint then count := !count + ErrDataSet.cardinal err_datas)
+      if filter key.err_kind key.in_footprint then count := !count + ErrDataSet.cardinal err_datas
+      )
     err_log ;
   !count
 
@@ -324,7 +325,7 @@ module Err_table = struct
     let count_err (err_name: IssueType.t) n =
       let err_string = err_name.IssueType.unique_id in
       let count = try String.Map.find_exn !err_name_map err_string with Not_found -> 0 in
-      err_name_map := String.Map.add ~key:err_string ~data:(count + n) !err_name_map
+      err_name_map := String.Map.set ~key:err_string ~data:(count + n) !err_name_map
     in
     let count key err_datas =
       if Exceptions.equal_err_kind ekind key.err_kind && key.in_footprint then
@@ -397,7 +398,6 @@ module Err_table = struct
     LocMap.iter
       (fun nslm err_names -> F.fprintf fmt "%a" (pp Exceptions.Kwarning nslm) err_names)
       !map_warn_re
-
 end
 
 type err_table = Err_table.t

infer/src/IR/Errlog.mli

@@ -36,7 +36,7 @@ val compute_local_exception_line : loc_trace -> int option
     This extra information adds value to the report itself, and may avoid
     digging into the trace to understand the cause of the report. *)
 
-type node_id_key = private {node_id: int; node_key: Digest.t}
+type node_id_key = private {node_id: int; node_key: Caml.Digest.t}
 
 type err_key = private
   { err_kind: Exceptions.err_kind
@@ -93,7 +93,7 @@ val update : t -> t -> unit
 (** Update an old error log with a new one *)
 
 val log_issue :
-  Exceptions.err_kind -> t -> Location.t -> int * Digest.t -> int -> loc_trace
+  Exceptions.err_kind -> t -> Location.t -> int * Caml.Digest.t -> int -> loc_trace
   -> ?linters_def_file:string -> ?doc_url:string -> ?access:string -> exn -> unit
 
 (** {2 Functions for manipulating per-file error tables} *)

infer/src/IR/Exceptions.ml

@@ -686,7 +686,7 @@ let print_key = false
 (** pretty print an error  *)
 let pp_err ~node_key loc ekind ex_name desc ml_loc_opt fmt () =
   let kind = err_kind_string (if equal_err_kind ekind Kinfo then Kwarning else ekind) in
-  let pp_key fmt k = if print_key then F.fprintf fmt " key: %s " (Digest.to_hex k) else () in
+  let pp_key fmt k = if print_key then F.fprintf fmt " key: %s " (Caml.Digest.to_hex k) else () in
   F.fprintf fmt "%a:%d: %s: %a %a%a%a@\n" SourceFile.pp loc.Location.file loc.Location.line kind
     IssueType.pp ex_name Localise.pp_error_desc desc pp_key node_key L.pp_ml_loc_opt ml_loc_opt
 

infer/src/IR/Exceptions.mli

@@ -158,7 +158,7 @@ val print_exception_html : string -> exn -> unit
 (** print a description of the exception to the html output *)
 
 val pp_err :
-  node_key:Digest.t -> Location.t -> err_kind -> IssueType.t -> Localise.error_desc
+  node_key:Caml.Digest.t -> Location.t -> err_kind -> IssueType.t -> Localise.error_desc
   -> Logging.ml_loc option -> Format.formatter -> unit -> unit
 (** pretty print an error *)
 

infer/src/IR/HilExp.ml

@@ -179,7 +179,6 @@ let rec eval_arithmetic_binop op e1 e2 =
   | _ ->
       None
 
-
 and eval = function
   | Constant c ->
       Some c
@@ -196,4 +195,3 @@ and eval = function
   | _ ->
       (* TODO: handle bitshifting cases, port eval_binop from RacerD.ml *)
       None
-

infer/src/IR/HilInstr.ml

@@ -127,4 +127,3 @@ let of_sil ~include_array_indexes ~f_resolve_id (instr: Sil.instr) =
   | Declare_locals _ ->
       (* these don't seem useful for most analyses. can translate them later if we want to *)
       Ignore
-

infer/src/IR/Ident.ml

@@ -39,7 +39,6 @@ module Name = struct
         spec
     | FromString s ->
         s
-
 end
 
 type name = Name.t [@@deriving compare]
@@ -159,7 +158,6 @@ module NameGenerator = struct
       let new_stamp = max curr_stamp stamp in
       NameHash.replace !name_map name new_stamp
     with Not_found -> NameHash.add !name_map name stamp
-
 end
 
 (** Name used for the return variable *)

infer/src/IR/Io_infer.ml

@@ -203,7 +203,6 @@ td.rowname { text-align:right; font-weight:bold; color:#444444; padding-right:2e
       ~pos:(Some pos) ~path:path_to_node fmt
       (node_name ^ "#" ^ pos) ;
     F.fprintf fmt "(%a)" (pp_line_link source path_to_root) linenum
-
 end
 
 (* =============== END of module Html =============== *)
@@ -341,7 +340,6 @@ module Xml = struct
     if on_several_lines then pp_prelude fmt ;
     pp_node newline "" fmt node ;
     if on_several_lines then pp fmt "@."
-
 end
 
 (* =============== END of module Xml =============== *)

infer/src/IR/LintIssues.ml

@@ -59,4 +59,3 @@ let load_issues_to_errlog_map dir =
         ()
   in
   match children_opt with Some children -> Array.iter ~f:load_issues_to_map children | None -> ()
-

infer/src/IR/Localise.ml

@@ -116,7 +116,6 @@ module Tags = struct
       ~f:(fun (tag, value) ->
         if String.Set.mem line_tags tag then Some (int_of_string value) else None )
       tags
-
 end
 
 type error_desc =
@@ -607,14 +606,16 @@ let dereference_string proc_name deref_str value_str access_opt loc =
       let annotation_name = nullable_annotation_name proc_name in
       match (Tags.get !tags Tags.nullable_src, Tags.get !tags Tags.weak_captured_var_src) with
       | Some nullable_src, _ ->
-          if String.equal nullable_src value_str then "is annotated with " ^ annotation_name
-            ^ " and is dereferenced without a null check"
-          else "is indirectly marked " ^ annotation_name ^ " (source: "
+          if String.equal nullable_src value_str then
+            "is annotated with " ^ annotation_name ^ " and is dereferenced without a null check"
+          else
+            "is indirectly marked " ^ annotation_name ^ " (source: "
             ^ MF.monospaced_to_string nullable_src ^ ") and is dereferenced without a null check"
       | None, Some weak_var_str ->
           if String.equal weak_var_str value_str then
             "is a weak pointer captured in the block and is dereferenced without a null check"
-          else "is equal to the variable " ^ MF.monospaced_to_string weak_var_str
+          else
+            "is equal to the variable " ^ MF.monospaced_to_string weak_var_str
             ^ ", a weak pointer captured in the block, and is dereferenced without a null check"
       | None, None ->
           deref_str.problem_str
@@ -690,8 +691,8 @@ let desc_allocation_mismatch alloc dealloc =
     Tags.update tags tag_line (string_of_int loc.Location.line) ;
     let by_call =
       if Typ.Procname.equal primitive_pname called_pname then ""
-      else " by call to "
-        ^ MF.monospaced_to_string (Typ.Procname.to_simplified_string called_pname)
+      else
+        " by call to " ^ MF.monospaced_to_string (Typ.Procname.to_simplified_string called_pname)
     in
     "using " ^ MF.monospaced_to_string (Typ.Procname.to_simplified_string primitive_pname)
     ^ by_call ^ " " ^ at_line (Tags.create ()) (* ignore the tag *) loc

infer/src/IR/Location.ml

@@ -42,4 +42,3 @@ let pp_file_pos f (loc: t) =
   let fname = SourceFile.to_string loc.file in
   let pos = to_string loc in
   F.fprintf f "%s:%s" fname pos
-

infer/src/IR/Objc_models.ml

@@ -201,11 +201,9 @@ module Core_foundation_model = struct
   let is_core_lib_create typ funct =
     is_core_lib_type typ
     && (String.is_substring ~substring:create funct || String.is_substring ~substring:copy funct)
-
 end
 
 let is_core_lib_type typ = Core_foundation_model.is_core_lib_type typ
 
 let is_malloc_model return_type pname =
   Core_foundation_model.is_core_lib_create return_type (Typ.Procname.to_string pname)
-

infer/src/IR/Procdesc.ml

@@ -251,7 +251,6 @@ module Node = struct
     in
     let pp fmt = F.fprintf fmt "%s@\n%a@?" str (pp_instrs pe None ~sub_instrs:true) node in
     F.asprintf "%t" pp
-
 end
 
 (* =============== END of module Node =============== *)
@@ -593,4 +592,3 @@ let has_modify_in_block_attr procdesc pvar =
            ProcAttributes.var_attribute_equal attr ProcAttributes.Modify_in_block )
   in
   List.exists ~f:pvar_local_matches (get_locals procdesc)
-

infer/src/IR/ProcnameDispatcher.ml

@@ -754,7 +754,6 @@ module Procname = struct
 
   let ( $!--> ) args_matcher f =
     args_matcher $* exact_args_or_retry wrong_args_internal_error $*--> f
-
 end
 
 module TypName = struct

infer/src/IR/Pvar.ml

@@ -52,6 +52,7 @@ let compare_modulo_this x y =
       else if String.equal "this" (Mangled.to_string x.pv_name) then 0
       else compare_pvar_kind x.pv_kind y.pv_kind
 
+
 let equal = [%compare.equal : t]
 
 let pp_translation_unit fmt = function

infer/src/IR/QualifiedCppName.ml

@@ -73,8 +73,9 @@ module Match = struct
 
   let qualifiers_list_matcher ?prefix quals_list =
     ( if List.is_empty quals_list then "a^" (* regexp that does not match anything *)
-    else List.rev_map ~f:(regexp_string_of_qualifiers ?prefix) quals_list
-      |> String.concat ~sep:"\\|" )
+    else
+      List.rev_map ~f:(regexp_string_of_qualifiers ?prefix) quals_list |> String.concat ~sep:"\\|"
+    )
     |> Str.regexp
 
 
@@ -100,5 +101,4 @@ module Match = struct
        instantiations *)
     let normalized_qualifiers = strip_template_args quals in
     Str.string_match matcher (to_separated_string ~sep:matching_separator normalized_qualifiers) 0
-
 end

infer/src/IR/Sil.ml

@@ -619,7 +619,6 @@ end = struct
         | [] ->
             ()
     done
-
 end
 
 let pp_texp_simple pe =
@@ -1402,7 +1401,7 @@ let sub_no_duplicated_ids sub = not (List.contains_dup ~compare:compare_ident_ex
     For all (id1, e1), (id2, e2) in the input list,
     if id1 = id2, then e1 = e2. *)
 let exp_subst_of_list sub =
-  let sub' = List.dedup ~compare:compare_ident_exp sub in
+  let sub' = List.dedup_and_sort ~compare:compare_ident_exp sub in
   assert (sub_no_duplicated_ids sub') ;
   sub'
 
@@ -1410,7 +1409,7 @@ let exp_subst_of_list sub =
 let subst_of_list sub = `Exp (exp_subst_of_list sub)
 
 (** like exp_subst_of_list, but allow duplicate ids and only keep the first occurrence *)
-let exp_subst_of_list_duplicates sub = List.dedup ~compare:compare_ident_exp_ids sub
+let exp_subst_of_list_duplicates sub = List.dedup_and_sort ~compare:compare_ident_exp_ids sub
 
 (** Convert a subst to a list of pairs. *)
 let sub_to_list sub = sub

infer/src/IR/Subtype.ml

@@ -298,4 +298,3 @@ let case_analysis_basic tenv (c1, st) (c2, (_, flag2)) =
 let case_analysis tenv (c1, st1) (c2, st2) =
   if Config.subtype_multirange then get_subtypes tenv (c1, st1) (c2, st2)
   else case_analysis_basic tenv (c1, st1) (c2, st2)
-

infer/src/IR/Tenv.ml

@@ -128,8 +128,8 @@ let global_tenv : t option ref = ref None
 (** Load a type environment from a file *)
 let load_from_file (filename: DB.filename) : t option =
   if DB.equal_filename filename DB.global_tenv_fname then (
-    if is_none !global_tenv then global_tenv
-      := Serialization.read_from_file tenv_serializer DB.global_tenv_fname ;
+    if is_none !global_tenv then
+      global_tenv := Serialization.read_from_file tenv_serializer DB.global_tenv_fname ;
     !global_tenv )
   else Serialization.read_from_file tenv_serializer filename
 
@@ -157,4 +157,3 @@ let language_is tenv lang =
       Config.equal_language lang Java
   | exception Found _ ->
       Config.equal_language lang Clang
-

infer/src/IR/Typ.ml

@@ -816,8 +816,8 @@ module Procname = struct
     | Simple ->
         (* methodname(...) or without ... if there are no parameters *)
         let cls_prefix =
-          if withclass then java_type_to_string_verbosity (split_typename j.class_name) verbosity
-            ^ "."
+          if withclass then
+            java_type_to_string_verbosity (split_typename j.class_name) verbosity ^ "."
           else ""
         in
         let params = match j.parameters with [] -> "" | _ -> "..." in
@@ -1186,7 +1186,6 @@ module Procname = struct
     let serialize pname =
       let default () = Sqlite3.Data.TEXT (to_filename pname) in
       Base.Hashtbl.find_or_add pname_to_key pname ~default
-
   end
 
   (** given two template arguments, try to generate mapping from generic ones to concrete ones. *)
@@ -1242,7 +1241,6 @@ module Procname = struct
         |> extract_mapping
     | _ ->
         None
-
 end
 
 (** Return the return type of [pname_java]. *)
@@ -1352,7 +1350,6 @@ module Fieldname = struct
           String.is_prefix ~prefix:"val$" (to_flat_string field_name)
       | Clang _ ->
           false
-
   end
 end
 
@@ -1445,5 +1442,4 @@ module Struct = struct
           None )
     | _ ->
         None
-
 end

infer/src/IR/Typ.mli

@@ -640,5 +640,4 @@ module Struct : sig
   val get_field_type_and_annotation :
     lookup:lookup -> Fieldname.t -> typ -> (typ * Annot.Item.t) option
   (** Return the type of the field [fn] and its annotation, None if [typ] has no field named [fn] *)
-
 end

infer/src/absint/AbstractDomain.ml

@@ -137,8 +137,8 @@ module Pair (Domain1 : S) (Domain2 : S) = struct
 
   let ( <= ) ~lhs ~rhs =
     if phys_equal lhs rhs then true
-    else Domain1.( <= ) ~lhs:(fst lhs) ~rhs:(fst rhs)
-      && Domain2.( <= ) ~lhs:(snd lhs) ~rhs:(snd rhs)
+    else
+      Domain1.( <= ) ~lhs:(fst lhs) ~rhs:(fst rhs) && Domain2.( <= ) ~lhs:(snd lhs) ~rhs:(snd rhs)
 
 
   let join astate1 astate2 =

infer/src/absint/AbstractInterpreter.ml

@@ -162,7 +162,6 @@ struct
     let cfg = CFG.from_pdesc pdesc in
     let inv_map = exec_cfg cfg proc_data ~initial ~debug in
     extract_post (CFG.id (CFG.exit_node cfg)) inv_map
-
 end
 
 module MakeWithScheduler (C : ProcCfg.S) (S : Scheduler.Make) (T : TransferFunctions.MakeSIL) =

infer/src/absint/Checkers.ml

@@ -28,7 +28,6 @@ module PP = struct
     in
     F.fprintf fmt "%a:%d@\n" SourceFile.pp loc.Location.file loc.Location.line ;
     for n = loc.Location.line - nbefore to loc.Location.line + nafter do printline n done
-
 end
 
 (* PP *)
@@ -109,5 +108,4 @@ module ST = struct
         (Typ.Procname.to_string proc_name) ;
       L.progress "%s@." description ;
       Reporting.log_error_deprecated proc_name ~loc ~ltr:trace exn )
-
 end

infer/src/absint/LowerHil.ml

@@ -84,7 +84,6 @@ struct
         if phys_equal actual_state actual_state' then astate else (actual_state', id_map)
     | Ignore ->
         astate
-
 end
 
 module MakeAbstractInterpreterWithConfig
@@ -98,7 +97,6 @@ struct
     Preanal.do_preanalysis pdesc tenv ;
     let initial' = (initial, IdAccessPathMapDomain.empty) in
     Option.map ~f:fst (Interpreter.compute_post ~debug:false proc_data ~initial:initial')
-
 end
 
 module MakeAbstractInterpreter = MakeAbstractInterpreterWithConfig (DefaultConfig)

infer/src/absint/PatternMatch.ml

@@ -431,4 +431,3 @@ let rec find_superclasses_with_attributes check tenv tname =
       if check struct_typ.annots then tname :: result_from_supers else result_from_supers
   | _ ->
       []
-

infer/src/absint/ProcCfg.ml

@@ -84,7 +84,6 @@ module InstrNode = struct
         Procdesc.Node.pp_id fmt id
     | Instr_index i ->
         F.fprintf fmt "(%a: %d)" Procdesc.Node.pp_id id i
-
 end
 
 module type S = sig
@@ -289,7 +288,6 @@ struct
         let id = (Procdesc.Node.get_id t, Instr_index i) in
         (instr, Some id) )
       (instrs t)
-
 end
 
 module NodeIdMap (CFG : S) = Caml.Map.Make (struct

infer/src/absint/Scheduler.ml

@@ -70,7 +70,6 @@ module ReversePostorder (CFG : ProcCfg.S) = struct
       let visited_preds' = IdSet.add node_id t.visited_preds in
       let priority' = compute_priority cfg t.node visited_preds' in
       {t with visited_preds= visited_preds'; priority= priority'}
-
   end
 
   type t = {worklist: WorkUnit.t M.t; cfg: CFG.t}

infer/src/absint/Summary.ml

@@ -36,5 +36,4 @@ module Make (P : Payload) : S with type payload = P.payload = struct
         None
     | Some summary ->
         P.read_payload summary
-
 end

infer/src/backend/Attribute.ml

@@ -38,8 +38,7 @@ let add_or_replace_check_changed tenv check_attribute_change prop atom =
       let _, nexp = List.hd_exn pairs in
       (* len exps0 > 0 by match *)
       let atom_map = function
-        | Sil.Apred (att, exp :: _)
-        | Anpred (att, exp :: _)
+        | (Sil.Apred (att, exp :: _) | Anpred (att, exp :: _))
           when Exp.equal nexp exp && attributes_in_same_category att att0 ->
             check_attribute_change att att0 ; atom
         | atom' ->
@@ -268,8 +267,8 @@ let find_arithmetic_problem tenv proc_node_session prop exp =
     | Exp.UnOp (_, e, _) ->
         walk e
     | Exp.BinOp (op, e1, e2) ->
-        if Binop.equal op Binop.Div || Binop.equal op Binop.Mod then exps_divided
-          := e2 :: !exps_divided ;
+        if Binop.equal op Binop.Div || Binop.equal op Binop.Mod then
+          exps_divided := e2 :: !exps_divided ;
         walk e1 ;
         walk e2
     | Exp.Exn _ ->
@@ -409,4 +408,3 @@ let find_equal_formal_path tenv e prop =
         Some vfs
     | _ ->
         None
-

infer/src/backend/BuiltinDefn.ml

@@ -397,6 +397,7 @@ let execute___set_mem_attribute {Builtin.tenv; pdesc; prop_; path; ret_id; args;
   | _ ->
       raise (Exceptions.Wrong_argument_number __POS__)
 
+
 let set_attr tenv pdesc prop path exp attr =
   let pname = Procdesc.get_proc_name pdesc in
   let n_lexp, prop = check_arith_norm_exp tenv pname exp prop in

infer/src/backend/Differential.ml

@@ -134,4 +134,3 @@ let to_files {introduced; fixed; preexisting} destdir =
   Out_channel.write_all (destdir ^/ "fixed.json") ~data:(Jsonbug_j.string_of_report fixed) ;
   Out_channel.write_all (destdir ^/ "preexisting.json")
     ~data:(Jsonbug_j.string_of_report preexisting)
-

infer/src/backend/DifferentialFilters.ml

@@ -123,7 +123,7 @@ let skip_duplicated_types_on_filenames renamings (diff: Differential.t) : Differ
     String.compare f1 f2
   in
   let cmp ((issue1, _) as issue_with_previous_file1) ((issue2, _) as issue_with_previous_file2) =
-    [%compare : Digest.t * string * issue_file_with_renaming]
+    [%compare : Caml.Digest.t * string * issue_file_with_renaming]
       (issue1.Jsonbug_t.key, issue1.Jsonbug_t.bug_type, issue_with_previous_file1)
       (issue2.Jsonbug_t.key, issue2.Jsonbug_t.bug_type, issue_with_previous_file2)
   in
@@ -180,7 +180,7 @@ let value_of_qualifier_tag qts tag =
 
 type file_extension = string [@@deriving compare]
 
-type weak_hash = string * string * string * Digest.t * string option [@@deriving compare]
+type weak_hash = string * string * string * Caml.Digest.t * string option [@@deriving compare]
 
 let skip_anonymous_class_renamings (diff: Differential.t) : Differential.t =
   (*

infer/src/backend/InferAnalyze.ml

@@ -134,8 +134,8 @@ let main ~changed_files ~makefile =
       in
       let n_clusters_to_analyze = List.length clusters_to_analyze in
       L.progress "Found %d%s source file%s to analyze in %s@." n_clusters_to_analyze
-        ( if Config.reactive_mode || Option.is_some changed_files then " (out of "
-            ^ string_of_int (List.length all_clusters) ^ ")"
+        ( if Config.reactive_mode || Option.is_some changed_files then
+            " (out of " ^ string_of_int (List.length all_clusters) ^ ")"
         else "" )
         (if Int.equal n_clusters_to_analyze 1 then "" else "s")
         Config.results_dir ;

infer/src/backend/InferPrint.ml

@@ -56,7 +56,7 @@ let compute_hash (kind: string) (type_str: string) (proc_name: Typ.Procname.t) (
   in
   Utils.better_hash
     (kind, type_str, hashable_procedure_name, base_filename, location_independent_qualifier)
-  |> Digest.to_hex
+  |> Caml.Digest.to_hex
 
 
 let exception_value = "exception"
@@ -177,7 +177,6 @@ module ProcsCsv = struct
     pp "%d," sv.vline ;
     pp "\"%s\"," (Escape.escape_csv sv.vsignature) ;
     pp "%s@\n" sv.vproof_trace
-
 end
 
 let should_report (issue_kind: Exceptions.err_kind) issue_type error_desc eclass =
@@ -290,7 +289,7 @@ module IssuesJson = struct
         ; procedure_start_line
         ; file
         ; bug_trace= loc_trace_to_jsonbug_record err_data.loc_trace key.err_kind
-        ; key= err_data.node_id_key.node_key |> Digest.to_hex
+        ; key= err_data.node_id_key.node_key |> Caml.Digest.to_hex
         ; qualifier_tags= Localise.Tags.tag_value_records_of_tags key.err_desc.tags
         ; hash= compute_hash kind bug_type procname file qualifier
         ; dotty= error_desc_to_dotty_string key.err_desc
@@ -309,7 +308,6 @@ module IssuesJson = struct
   (** Write bug report in JSON format *)
   let pp_issues_of_error_log fmt error_filter _ proc_loc_opt procname err_log =
     Errlog.iter (pp_issue fmt error_filter procname proc_loc_opt) err_log
-
 end
 
 let pp_custom_of_report fmt report fields =
@@ -352,9 +350,9 @@ let pp_custom_of_report fmt report fields =
       | `Issue_field_bug_trace ->
           pp_trace fmt issue.bug_trace (comma_separator index)
       | `Issue_field_key ->
-          Format.fprintf fmt "%s%s" (comma_separator index) (Digest.to_hex issue.key)
+          Format.fprintf fmt "%s%s" (comma_separator index) (Caml.Digest.to_hex issue.key)
       | `Issue_field_hash ->
-          Format.fprintf fmt "%s%s" (comma_separator index) (Digest.to_hex issue.hash)
+          Format.fprintf fmt "%s%s" (comma_separator index) (Caml.Digest.to_hex issue.hash)
       | `Issue_field_line_offset ->
           Format.fprintf fmt "%s%d" (comma_separator index)
             (issue.line - issue.procedure_start_line)
@@ -371,7 +369,7 @@ let pp_custom_of_report fmt report fields =
 
 let tests_jsonbug_compare bug1 bug2 =
   let open Jsonbug_t in
-  [%compare : string * string * int * string * Digest.t]
+  [%compare : string * string * int * string * Caml.Digest.t]
     (bug1.file, bug1.procedure, bug1.line - bug1.procedure_start_line, bug1.bug_type, bug1.hash)
     (bug2.file, bug2.procedure, bug2.line - bug2.procedure_start_line, bug2.bug_type, bug2.hash)
 
@@ -395,7 +393,6 @@ module IssuesTxt = struct
   (** Write bug report in text format *)
   let pp_issues_of_error_log fmt error_filter _ proc_loc_opt _ err_log =
     Errlog.iter (pp_issue fmt error_filter proc_loc_opt) err_log
-
 end
 
 let pp_text_of_report fmt report =
@@ -423,7 +420,6 @@ module CallsCsv = struct
       pp "%a@\n" Specs.CallStats.pp_trace trace
     in
     Specs.CallStats.iter do_call stats.Specs.call_stats
-
 end
 
 module Stats = struct
@@ -559,7 +555,6 @@ module Stats = struct
     F.fprintf fmt "@\n -------------------@\n" ;
     F.fprintf fmt "@\nDetailed Errors@\n@\n" ;
     List.iter ~f:(fun s -> F.fprintf fmt "%s@\n" s) (List.rev stats.saved_errors)
-
 end
 
 module Report = struct
@@ -605,7 +600,6 @@ module PreconditionStats = struct
     L.result "Procedures with empty precondition: %d@." !nr_empty ;
     L.result "Procedures with only allocation conditions: %d@." !nr_onlyallocation ;
     L.result "Procedures with data constraints: %d@." !nr_dataconstraints
-
 end
 
 (* Wrapper of an issue that compares all parts except the procname *)
@@ -631,13 +625,12 @@ module Issue = struct
      identical warning on the same line. Accomplish this by sorting without regard to procname, then
      de-duplicating. *)
   let sort_filter_issues issues =
-    let issues' = List.dedup ~compare issues in
+    let issues' = List.dedup_and_sort ~compare issues in
     ( if Config.developer_mode then
         let num_pruned_issues = List.length issues - List.length issues' in
         if num_pruned_issues > 0 then
           L.user_warning "Note: pruned %d duplicate issues@\n" num_pruned_issues ) ;
     issues'
-
 end
 
 let error_filter filters proc_name file error_desc error_name =
@@ -918,7 +911,6 @@ module AnalysisResults = struct
           iterator_of_summary_list r
       | None ->
           L.(die UserError) "Error: cannot open analysis results file %s@." fname
-
 end
 
 let register_perf_stats_report () =

infer/src/backend/OndemandCapture.ml

@@ -59,4 +59,3 @@ let try_capture (attributes: ProcAttributes.t) : ProcAttributes.t option =
      Caveat: it's possible that procedure will be captured in some other unrelated file
              later - infer may ignore it then. *)
   Attributes.load_defined attributes.proc_name
-

infer/src/backend/PerfStats.ml

@@ -153,4 +153,3 @@ let register_report_at_exit =
       String.Table.set registered_files ~key:file ~data:() ;
       if not Config.buck_cache_mode then
         Epilogues.register ~f:(report_at_exit file) ("stats reporting in " ^ file) )
-

infer/src/backend/PropUtil.ml

@@ -189,4 +189,3 @@ let remove_seed_vars tenv (prop: 'a Prop.t) : Prop.normal Prop.t =
   let sigma = prop.sigma in
   let sigma' = List.filter ~f:hpred_not_seed sigma in
   Prop.normalize tenv (Prop.set prop ~sigma:sigma')
-

infer/src/backend/RetainCycles.ml

@@ -182,4 +182,3 @@ let report_cycle tenv hpred original_prop =
       Some (exn_retain_cycle tenv prop hpred cycle)
   | _ ->
       None
-

infer/src/backend/StatsAggregator.ml

@@ -179,4 +179,3 @@ let generate_files () =
   write_to_json_file_opt
     (Filename.concat aggregated_reporting_stats_dir aggregated_stats_filename)
     j.reporting_json_data
-

infer/src/backend/Tasks.ml

@@ -67,5 +67,4 @@ module Runner = struct
   let complete runner =
     ProcessPool.wait_all runner.pool ;
     Queue.iter ~f:(fun f -> f ()) runner.all_continuations
-
 end

infer/src/backend/abs.ml

@@ -926,7 +926,7 @@ let abstract_gc tenv p =
         let no_fav_e1 = Sil.fav_is_empty fav_e1 in
         let no_fav_e2 = Sil.fav_is_empty fav_e2 in
         (no_fav_e1 || intersect_e1 ()) && (no_fav_e2 || intersect_e2 ())
-    | Sil.Apred _ | Anpred _ as a ->
+    | (Sil.Apred _ | Anpred _) as a ->
         let fav_a = Sil.atom_fav a in
         Sil.fav_is_empty fav_a
         || IList.intersect Ident.compare (Sil.fav_to_list fav_a) (Sil.fav_to_list fav_p_without_pi)
@@ -1111,8 +1111,7 @@ let check_junk ?original_prop pname tenv prop =
             in
             let ml_bucket_opt =
               match resource with
-              | PredSymb.Rmemory PredSymb.Mnew
-              | PredSymb.Rmemory PredSymb.Mnew_array
+              | (PredSymb.Rmemory PredSymb.Mnew | PredSymb.Rmemory PredSymb.Mnew_array)
                 when Config.curr_language_is Config.Clang ->
                   Mleak_buckets.should_raise_cpp_leak
               | _ ->
@@ -1137,9 +1136,7 @@ let check_junk ?original_prop pname tenv prop =
                     (false, exn)
                 | None ->
                     (true, exn_leak) )
-              | Some _, Rmemory Mobjc
-              | Some _, Rmemory Mnew
-              | Some _, Rmemory Mnew_array
+              | (Some _, Rmemory Mobjc | Some _, Rmemory Mnew | Some _, Rmemory Mnew_array)
                 when Config.curr_language_is Config.Clang ->
                   (is_none ml_bucket_opt, exn_leak)
               | Some _, Rmemory _ ->
@@ -1327,5 +1324,4 @@ let lifted_abstract pname tenv pset =
   let abstracted_pset = Propset.map_option tenv f pset in
   abstracted_pset
 
-
 (***************** End of Main Abstraction Functions *****************)

infer/src/backend/absarray.ml

@@ -286,7 +286,6 @@ end = struct
     in
     let hpred' = hpred_replace_strexp tenv footprint_part hpred syn_offs update in
     replace_hpred (sigma, hpred, syn_offs) hpred'
-
 end
 
 (** This function renames expressions in [p]. The renaming is, roughly
@@ -690,4 +689,3 @@ let remove_redundant_elements tenv prop =
     let prop' = Prop.set prop ~sigma:sigma' ~sigma_fp:sigma_fp' in
     Prop.normalize tenv prop'
   else prop
-

infer/src/backend/builtin.ml

@@ -70,4 +70,3 @@ let pp_registered fmt () =
 let print_and_exit () =
   pp_registered Format.std_formatter () ;
   L.exit 0
-

infer/src/backend/cluster.ml

@@ -49,4 +49,3 @@ let pp_cluster fmt (nr, cluster) =
   (* touch the target of the rule to let `make` know that the job has been done *)
   F.fprintf fmt "\t%@touch $%@@\n" ;
   F.fprintf fmt "@\n"
-

infer/src/backend/clusterMakefile.ml

@@ -49,4 +49,3 @@ let create_cluster_makefile (clusters: Cluster.t list) (fname: string) =
   List.iteri ~f:do_cluster clusters ;
   pp_epilog fmt () ;
   Out_channel.close outc
-

infer/src/backend/crashcontext.ml

@@ -53,7 +53,7 @@ let stitch_summaries stacktrace_file summary_files out_file =
   let summary_map =
     List.fold
       ~f:(fun acc stacktree ->
-        String.Map.add ~key:(frame_id_of_summary stacktree) ~data:stacktree acc)
+        String.Map.set ~key:(frame_id_of_summary stacktree) ~data:stacktree acc )
       ~init:String.Map.empty summaries
   in
   let expand_stack_frame frame =

infer/src/backend/dom.ml

@@ -181,7 +181,6 @@ end = struct
           let set = lookup_const' const_tbl r in
           List.for_all ~f:(fun v' -> Exp.equal (find' tbl v') r) vars'
           && List.for_all ~f:(fun c -> Exp.Set.mem c set) nonvars
-
 end
 
 (** {2 Modules for checking whether join or meet loses too much info} *)
@@ -234,7 +233,6 @@ end = struct
         not (Exp.Set.mem e lexps)
     | _ ->
         false
-
 end
 
 module CheckJoinPre : InfoLossCheckerSig = struct
@@ -356,7 +354,6 @@ end = struct
         CheckJoinPre.add side e1 e2
     | JoinState.Post ->
         CheckJoinPost.add side e1 e2
-
 end
 
 module CheckMeet : InfoLossCheckerSig = struct
@@ -452,7 +449,6 @@ end = struct
     let res = !tbl in
     tbl := [] ;
     res
-
 end
 
 (** {2 Module for introducing fresh variables} *)
@@ -553,7 +549,6 @@ end = struct
           acc
     in
     List.fold ~f:f_ineqs ~init:eqs t_minimal
-
 end
 
 (** {2 Modules for renaming} *)
@@ -868,7 +863,6 @@ end = struct
         in
         let entry = (e1, e2, e) in
         push entry ; Todo.push entry ; e
-
 end
 
 (** {2 Functions for constructing fresh sil data types} *)
@@ -1897,8 +1891,9 @@ let prop_partial_meet tenv p1 p2 =
   FreshVarExp.init () ;
   Todo.init () ;
   try
-    SymOp.try_finally ~f:(fun () -> Some (eprop_partial_meet tenv p1 p2)) ~finally:(fun () ->
-        Rename.final () ; FreshVarExp.final () ; Todo.final () )
+    SymOp.try_finally
+      ~f:(fun () -> Some (eprop_partial_meet tenv p1 p2))
+      ~finally:(fun () -> Rename.final () ; FreshVarExp.final () ; Todo.final ())
   with Sil.JoinFail -> None
 
 
@@ -2011,7 +2006,8 @@ let prop_partial_join pname tenv mode p1 p2 =
             Todo.reset rename_footprint ;
             let res = eprop_partial_join' tenv mode (Prop.expose p1') (Prop.expose p2') in
             if !Config.footprint then JoinState.set_footprint false ;
-            Some res) ~finally:(fun () -> Rename.final () ; FreshVarExp.final () ; Todo.final () )
+            Some res )
+          ~finally:(fun () -> Rename.final () ; FreshVarExp.final () ; Todo.final ())
       with Sil.JoinFail -> None )
   | Some _ ->
       res_by_implication_only
@@ -2022,8 +2018,9 @@ let eprop_partial_join tenv mode (ep1: Prop.exposed Prop.t) (ep2: Prop.exposed P
   Rename.init () ;
   FreshVarExp.init () ;
   Todo.init () ;
-  SymOp.try_finally ~f:(fun () -> eprop_partial_join' tenv mode ep1 ep2) ~finally:(fun () ->
-      Rename.final () ; FreshVarExp.final () ; Todo.final () )
+  SymOp.try_finally
+    ~f:(fun () -> eprop_partial_join' tenv mode ep1 ep2)
+    ~finally:(fun () -> Rename.final () ; FreshVarExp.final () ; Todo.final ())
 
 
 (** {2 Join and Meet for Propset} *)
@@ -2232,4 +2229,3 @@ let propset_meet_generate_pre tenv pset =
     let plist_old = Propset.to_proplist pset in
     let plist_new = Propset.to_proplist pset_new in
     plist_new @ plist_old
-

infer/src/backend/dotty.ml

@@ -111,10 +111,11 @@ let print_stack_info = ref false
 (* replace a dollar sign in a name with a D. We need this because dotty get confused if there is*)
 (* a dollar sign i a label*)
 let strip_special_chars b =
+  let b = Bytes.of_string b in
   let replace st c c' =
-    if String.contains st c then
-      let idx = String.index_exn st c in
-      try st.[idx] <- c' ; st with Invalid_argument _ ->
+    if Bytes.contains st c then
+      let idx = String.index_exn (Bytes.to_string st) c in
+      try Bytes.set st idx c' ; st with Invalid_argument _ ->
         L.internal_error "@\n@\nstrip_special_chars: Invalid argument!@\n@." ;
         assert false
     else st
@@ -127,7 +128,7 @@ let strip_special_chars b =
   let s5 = replace s4 ')' 'B' in
   let s6 = replace s5 '+' 'P' in
   let s7 = replace s6 '-' 'M' in
-  s7
+  Bytes.to_string s7
 
 
 let rec strexp_to_string pe coo f se =
@@ -1733,4 +1734,3 @@ let print_specs_xml signature specs loc fmt =
       [xml_signature; xml_specifications]
   in
   Io_infer.Xml.pp_document true fmt proc_summary
-

infer/src/backend/errdesc.ml

@@ -1331,4 +1331,3 @@ let explain_null_test_after_dereference tenv exp node line loc =
 
 let warning_err loc fmt_string =
   L.(debug Analysis Medium) ("%a: Warning: " ^^ fmt_string) Location.pp loc
-

infer/src/backend/exe_env.ml

@@ -218,4 +218,3 @@ let iter_files f exe_env =
       SourceFile.Set.add fname seen_files_acc )
   in
   ignore (Typ.Procname.Hash.fold do_file exe_env.proc_map SourceFile.Set.empty)
-

infer/src/backend/infer.ml

@@ -38,7 +38,8 @@ let setup () =
       if not
            ( Driver.(equal_mode driver_mode Analyze)
            ||
-           Config.(buck || continue_capture || infer_is_clang || infer_is_javac || reactive_mode) )
+           Config.(buck || continue_capture || infer_is_clang || infer_is_javac || reactive_mode)
+           )
       then ResultsDir.remove_results_dir () ;
       ResultsDir.create_results_dir ()
   | Explore ->

infer/src/backend/inferconfig.ml

@@ -83,7 +83,6 @@ module FileContainsStringMatcher = struct
             source_map := SourceFile.Map.add source_file pattern_found !source_map ;
             pattern_found
           with Sys_error _ -> false
-
 end
 
 type method_pattern =
@@ -106,7 +105,7 @@ module FileOrProcMatcher = struct
         List.fold
           ~f:(fun map pattern ->
             let previous = try String.Map.find_exn map pattern.class_name with Not_found -> [] in
-            String.Map.add ~key:pattern.class_name ~data:(pattern :: previous) map)
+            String.Map.set ~key:pattern.class_name ~data:(pattern :: previous) map )
           ~init:String.Map.empty m_patterns
       in
       let do_java pname_java =
@@ -171,7 +170,6 @@ module FileOrProcMatcher = struct
         Format.fprintf fmt "Source contains (%s) {@\n%a}@\n"
           (Config.string_of_language language)
           pp_source_contains sc
-
 end
 
 (* of module FileOrProcMatcher *)
@@ -186,7 +184,6 @@ module OverridesMatcher = struct
           L.(die UserError) "Expecting method pattern"
     in
     List.exists ~f:is_matching patterns
-
 end
 
 let patterns_of_json_with_key (json_key, json) =
@@ -371,4 +368,3 @@ let test () =
           let matching_s = String.concat ~sep:", " (List.map ~f:fst matching) in
           L.result "%s -> {%s}@." (SourceFile.to_rel_path source_file) matching_s )
     (Sys.getcwd ())
-

infer/src/backend/interproc.ml

@@ -62,7 +62,6 @@ module NodeVisitSet = Caml.Set.Make (struct
       | _ ->
           compare_number_of_visits x1 x2
     else compare_ids x1.node x2.node
-
 end)
 
 (** Table for the results of the join operation on nodes. *)
@@ -122,7 +121,6 @@ module Worklist = struct
     with Not_found ->
       L.internal_error "@\n...Work list is empty! Impossible to remove edge...@\n" ;
       assert false
-
 end
 
 (* =============== END of module Worklist =============== *)
@@ -1230,7 +1228,8 @@ let transition_footprint_re_exe tenv proc_name joined_pres =
       let specs =
         List.map
           ~f:(fun jp ->
-            Specs.spec_normalize tenv {Specs.pre= jp; posts= []; visited= Specs.Visitedset.empty})
+            Specs.spec_normalize tenv {Specs.pre= jp; posts= []; visited= Specs.Visitedset.empty}
+            )
           joined_pres
       in
       let payload = {summary.Specs.payload with Specs.preposts= Some specs} in

infer/src/backend/match.ml

@@ -936,4 +936,3 @@ let hpara_dll_create tenv corres sigma1 root1 blink1 flink1 =
     ; Sil.body_dll= body }
   in
   (hpara_dll, es_shared)
-

infer/src/backend/mergeCapture.ml

@@ -129,8 +129,8 @@ let process_merge_file deps_file =
     match Str.split_delim (Str.regexp (Str.quote "\t")) line with
     | target :: _ :: target_results_dir :: _ ->
         let infer_out_src =
-          if Filename.is_relative target_results_dir then Filename.dirname (buck_out ())
-            ^/ target_results_dir
+          if Filename.is_relative target_results_dir then
+            Filename.dirname (buck_out ()) ^/ target_results_dir
           else target_results_dir
         in
         let skiplevels = 2 in
@@ -156,4 +156,3 @@ let merge_captured_targets () =
   MergeResults.merge_buck_flavors_results infer_deps_file ;
   process_merge_file infer_deps_file ;
   L.progress "Merging captured Buck targets took %a@\n%!" Mtime.Span.pp (Mtime_clock.count time0)
-

infer/src/backend/ondemand.ml

@@ -211,4 +211,3 @@ let analyze_proc_name : Procdesc.t -> Typ.Procname.t -> Specs.summary option =
 (** Find a proc desc for the procedure, perhaps loading it from disk. *)
 let get_proc_desc callee_pname =
   match !callbacks_ref with Some callbacks -> callbacks.get_proc_desc callee_pname | None -> None
-

infer/src/backend/paths.ml

@@ -253,7 +253,6 @@ end = struct
               let stats1 = compute_stats do_calls f path ; get_stats path in
               stats.max_length <- stats1.max_length ;
               stats.linear_num <- stats1.linear_num
-
   end
 
   (* End of module Invariant *)
@@ -548,7 +547,6 @@ end = struct
     in
     let relevant lt = lt.Errlog.lt_node_tags <> [] in
     IList.remove_irrelevant_duplicates compare relevant (List.rev !trace)
-
 end
 
 (* =============== END of the Path module ===============*)
@@ -740,7 +738,6 @@ end = struct
   (** It's the caller's resposibility to ensure that Prop.prop_rename_primed_footprint_vars was called on the list *)
   let from_renamed_list (pl: ('a Prop.t * Path.t) list) : t =
     List.fold ~f:(fun ps (p, pa) -> add_renamed_prop p pa ps) ~init:empty pl
-
 end
 
 (* =============== END of the PathSet module ===============*)

infer/src/backend/preanal.ml

@@ -108,7 +108,6 @@ module NullifyTransferFunctions = struct
             "Should not add nullify instructions before running nullify analysis!"
     in
     if is_last_instr_in_node instr node then postprocess astate' node extras else astate'
-
 end
 
 module NullifyAnalysis =
@@ -199,4 +198,3 @@ let do_abstraction pdesc =
 
 let do_preanalysis pdesc tenv =
   if not (Procdesc.did_preanalysis pdesc) then ( do_liveness pdesc tenv ; do_abstraction pdesc )
-

infer/src/backend/printer.ml

@@ -151,7 +151,6 @@ end = struct
     let fd = Hashtbl.find log_files (node_fname, source) in
     Unix.close fd ;
     curr_html_formatter := F.std_formatter
-
 end
 
 (* =============== END of module NodesHtml =============== *)

infer/src/backend/prop.ml

@@ -1318,8 +1318,7 @@ module Normalize = struct
     in
     let handle_unary_negation (e1: Exp.t) (e2: Exp.t) =
       match (e1, e2) with
-      | UnOp (LNot, e1', _), Const Cint i
-      | Const Cint i, UnOp (LNot, e1', _)
+      | (UnOp (LNot, e1', _), Const Cint i | Const Cint i, UnOp (LNot, e1', _))
         when IntLit.iszero i ->
           (e1', Exp.zero, true)
       | _ ->
@@ -1712,7 +1711,6 @@ module Normalize = struct
     let nprop = List.fold ~f:(prop_atom_and tenv) ~init:p0 (get_pure_extended eprop) in
     unsafe_cast_to_normal
       (footprint_normalize tenv (set nprop ~pi_fp:eprop.pi_fp ~sigma_fp:eprop.sigma_fp))
-
 end
 
 (* End of module Normalize *)
@@ -2668,7 +2666,6 @@ end = struct
   let prop_chain_size p =
     let fp_size = pi_size p.pi_fp + sigma_size p.sigma_fp in
     pi_size p.pi + sigma_size p.sigma + fp_size
-
 end
 
 (*** END of module Metrics ***)
@@ -2729,7 +2726,6 @@ module CategorizePreconditions = struct
         OnlyAllocation
     | _ :: _, [], [] ->
         DataConstraints
-
 end
 
 (* Export for interface *)

infer/src/backend/propgraph.ml

@@ -90,7 +90,8 @@ let get_subl footprint_part g = if footprint_part then [] else Sil.sub_to_list g
 let edge_from_source g n footprint_part is_hpred =
   let edges =
     if is_hpred then List.map ~f:(fun hpred -> Ehpred hpred) (get_sigma footprint_part g)
-    else List.map ~f:(fun a -> Eatom a) (get_pi footprint_part g)
+    else
+      List.map ~f:(fun a -> Eatom a) (get_pi footprint_part g)
       @ List.map ~f:(fun entry -> Esub_entry entry) (get_subl footprint_part g)
   in
   let starts_from hpred =

infer/src/backend/propset.ml

@@ -102,4 +102,3 @@ let pp pe prop f pset =
 let d p ps =
   let plist = to_proplist ps in
   Propgraph.d_proplist p plist
-

infer/src/backend/prover.ml

@@ -194,7 +194,6 @@ end = struct
   let saturate constraints =
     let constraints_cleaned = sort_then_remove_redundancy constraints in
     saturate_ constraints_cleaned constraints_cleaned
-
 end
 
 (** Return true if the two types have sizes which can be compared *)
@@ -604,7 +603,6 @@ end = struct
     List.exists ~f:inconsistent_neq neqs || List.exists ~f:inconsistent_leq leqs
     || List.exists ~f:inconsistent_lt lts
 
-
   (*
   (** Pretty print inequalities and disequalities *)
   let pp pe fmt { leqs = leqs; lts = lts; neqs = neqs } =
@@ -871,7 +869,7 @@ let get_smt_key a p =
   let fmt_tmp = F.formatter_of_out_channel outc_tmp in
   let () = F.fprintf fmt_tmp "%a%a" (Sil.pp_atom Pp.text) a (Prop.pp_prop Pp.text) p in
   Out_channel.close outc_tmp ;
-  Digest.to_hex (Digest.file tmp_filename)
+  Caml.Digest.to_hex (Caml.Digest.file tmp_filename)
 
 
 (** Check whether [prop |- a]. False means dont know. *)
@@ -1323,7 +1321,6 @@ end = struct
     d_inner () ;
     L.d_strln " returning FALSE" ;
     L.d_ln ()
-
 end
 
 let d_impl (s1, s2) = ProverState.d_implication (`Exp s1, `Exp s2)
@@ -1939,7 +1936,6 @@ module Subtyping_check = struct
     | _ ->
         (* don't know, consider both possibilities *)
         (Some texp1, Some texp1)
-
 end
 
 let cast_exception tenv texp1 texp2 e1 subs =
@@ -2774,7 +2770,6 @@ let find_minimum_pure_cover tenv cases =
   let shrink cases = if List.length cases > 2 then shrink_ [] cases else cases in
   try Some (shrink (grow [] cases)) with NO_COVER -> None
 
-
 (*
 (** Check [prop |- e1<e2]. Result [false] means "don't know". *)
 let check_lt prop e1 e2 =

infer/src/backend/rearrange.ml

@@ -1775,4 +1775,3 @@ let rearrange ?(report_deref_errors= true) pdesc tenv lexp typ prop loc
         raise (Exceptions.Symexec_memory_error __POS__) )
   | Some iter ->
       iter_rearrange pname tenv nlexp typ prop' iter inst
-

infer/src/backend/reporting.ml

@@ -11,7 +11,7 @@ open! IStd
 module L = Logging
 
 type log_t =
-  ?loc:Location.t -> ?node_id:int * Digest.t -> ?session:int -> ?ltr:Errlog.loc_trace
+  ?loc:Location.t -> ?node_id:int * Caml.Digest.t -> ?session:int -> ?ltr:Errlog.loc_trace
   -> ?linters_def_file:string -> ?doc_url:string -> ?access:string -> exn -> unit
 
 type log_issue_from_errlog = Errlog.t -> log_t
@@ -24,7 +24,7 @@ let log_issue_from_errlog err_kind err_log ?loc ?node_id ?session ?ltr ?linters_
     let node_id =
       match node_id with
       | None ->
-          (State.get_node_id_key () :> int * Digest.t)
+          (State.get_node_id_key () :> int * Caml.Digest.t)
       | Some node_id ->
           node_id
     in
@@ -88,4 +88,3 @@ let log_warning_deprecated ?(store_summary= false) =
 
 let log_info_deprecated ?(store_summary= false) =
   log_issue_deprecated ~store_summary Exceptions.Kinfo
-

infer/src/backend/reporting.mli

@@ -12,7 +12,7 @@ open! IStd
 (** Type of functions to report issues to the error_log in a spec. *)
 
 type log_t =
-  ?loc:Location.t -> ?node_id:int * Digest.t -> ?session:int -> ?ltr:Errlog.loc_trace
+  ?loc:Location.t -> ?node_id:int * Caml.Digest.t -> ?session:int -> ?ltr:Errlog.loc_trace
   -> ?linters_def_file:string -> ?doc_url:string -> ?access:string -> exn -> unit
 
 type log_issue_from_errlog = Errlog.t -> log_t

infer/src/backend/specs.ml

@@ -135,7 +135,6 @@ module Jprop = struct
     | Joined (n, p, jp1, jp2) ->
         Joined (n, f p, map f jp1, map f jp2)
 
-
   (*
   let rec jprop_sub sub = function
     | Prop (n, p) -> Prop (n, Prop.prop_sub sub p)
@@ -232,7 +231,6 @@ end = struct
   let erase_join_info_pre tenv spec =
     let spec' = {spec with pre= Jprop.Prop (1, Jprop.to_prop spec.pre)} in
     normalize tenv spec'
-
 end
 
 (** Convert spec into normal form w.r.t. variable renaming *)
@@ -311,7 +309,6 @@ module CallStats = struct
     in
     List.iter ~f:(fun (x, tr) -> f x tr) sorted_elems
 
-
   (*
   let pp fmt t =
     let do_call (pname, loc) tr =
@@ -579,8 +576,7 @@ let res_dir_specs_filename pname =
 (** paths to the .specs file for the given procedure in the current spec libraries *)
 let specs_library_filenames pname =
   List.map
-    ~f:(fun specs_dir ->
-      DB.filename_from_string (Filename.concat specs_dir (specs_filename pname)))
+    ~f:(fun specs_dir -> DB.filename_from_string (Filename.concat specs_dir (specs_filename pname)))
     Config.specs_library
 
 

infer/src/backend/state.ml

@@ -25,7 +25,7 @@ type failure_stats =
   ; (* number of node failures (i.e. at least one instruction failure) *)
   mutable node_ok: int
   ; (* number of node successes (i.e. no instruction failures) *)
-  mutable first_failure: (Location.t * (int * Digest.t) * int * Errlog.loc_trace * exn) option
+  mutable first_failure: (Location.t * (int * Caml.Digest.t) * int * Errlog.loc_trace * exn) option
   (* exception at the first failure *) }
 
 module NodeHash = Procdesc.NodeHash
@@ -310,7 +310,7 @@ let mark_instr_ok () =
 
 let mark_instr_fail exn =
   let loc = get_loc () in
-  let key = (get_node_id_key () :> int * Digest.t) in
+  let key = (get_node_id_key () :> int * Caml.Digest.t) in
   let session = get_session () in
   let loc_trace = get_loc_trace () in
   let fs = get_failure_stats (get_node ()) in
@@ -320,7 +320,7 @@ let mark_instr_fail exn =
 
 
 type log_issue =
-  ?store_summary:bool -> Typ.Procname.t -> ?loc:Location.t -> ?node_id:int * Digest.t
+  ?store_summary:bool -> Typ.Procname.t -> ?loc:Location.t -> ?node_id:int * Caml.Digest.t
   -> ?session:int -> ?ltr:Errlog.loc_trace -> ?linters_def_file:string -> ?doc_url:string
   -> ?access:string -> exn -> unit
 

infer/src/backend/state.mli

@@ -42,7 +42,7 @@ val get_node : unit -> Procdesc.Node.t
 val get_node_id : unit -> Procdesc.Node.id
 (** Get id of last node seen in symbolic execution *)
 
-val get_node_id_key : unit -> Procdesc.Node.id * Digest.t
+val get_node_id_key : unit -> Procdesc.Node.id * Caml.Digest.t
 (** Get id and key of last node seen in symbolic execution *)
 
 val get_normalized_pre :
@@ -80,7 +80,7 @@ val mk_find_duplicate_nodes : Procdesc.t -> Procdesc.Node.t -> Procdesc.NodeSet.
     and normalized (w.r.t. renaming of let - bound ids) list of instructions. *)
 
 type log_issue =
-  ?store_summary:bool -> Typ.Procname.t -> ?loc:Location.t -> ?node_id:int * Digest.t
+  ?store_summary:bool -> Typ.Procname.t -> ?loc:Location.t -> ?node_id:int * Caml.Digest.t
   -> ?session:int -> ?ltr:Errlog.loc_trace -> ?linters_def_file:string -> ?doc_url:string
   -> ?access:string -> exn -> unit
 

infer/src/backend/symExec.ml

@@ -700,8 +700,7 @@ let resolve_and_analyze tenv caller_pdesc prop args callee_proc_name call_flags
             Some resolved_proc_desc
         | None ->
             Option.map
-              ~f:(fun callee_proc_desc ->
-                Cfg.specialize_types callee_proc_desc resolved_pname args)
+              ~f:(fun callee_proc_desc -> Cfg.specialize_types callee_proc_desc resolved_pname args)
               (Ondemand.get_proc_desc callee_proc_name)
       in
       Option.bind resolved_proc_desc_option ~f:analyze

infer/src/backend/tabulation.ml

@@ -789,7 +789,8 @@ let combine tenv ret_id (posts: ('a Prop.t * Paths.Path.t) list) actual_pre path
       else
         List.map
           ~f:(fun (p, path_post) ->
-            (p, Paths.Path.add_call (include_subtrace callee_pname) path_pre callee_pname path_post))
+            (p, Paths.Path.add_call (include_subtrace callee_pname) path_pre callee_pname path_post)
+            )
           posts
     in
     List.map
@@ -1366,4 +1367,3 @@ let exe_function_call callee_summary tenv ret_id_opt caller_pdesc callee_pname l
   in
   let results = List.map ~f:exe_one_spec spec_list in
   exe_call_postprocess tenv ret_id_opt trace_call callee_pname callee_attrs loc results
-

infer/src/backend/timeout.ml

@@ -124,4 +124,3 @@ let exe_timeout f x =
     L.progressbar_timeout_event kind ;
     Errdesc.warning_err (State.get_loc ()) "TIMEOUT: %a@." SymOp.pp_failure_kind kind ;
     Some kind
-

infer/src/base/CommandDoc.ml

@@ -283,4 +283,3 @@ let command_to_data =
 
 let data_of_command command =
   List.Assoc.find_exn ~equal:CLOpt.equal_command command_to_data command
-

infer/src/base/CommandLineOption.ml

@@ -218,7 +218,6 @@ module SectionMap = Caml.Map.Make (struct
       -1
     else (* reverse order *)
       String.compare s2 s1
-
 end)
 
 let help_sections_desc_lists =
@@ -384,8 +383,10 @@ let mk_set var value ?(deprecated= []) ~long ?short ?parse_mode ?in_help ?(meta=
   let setter () = var := value in
   ignore
     (mk ~deprecated ~long ?short ~default:() ?parse_mode ?in_help ~meta doc
-       ~default_to_string:(fun () -> "") ~decode_json:(string_json_decoder ~long)
-       ~mk_setter:(fun _ _ -> setter ()) ~mk_spec:(fun _ -> Unit setter ))
+       ~default_to_string:(fun () -> "")
+       ~decode_json:(string_json_decoder ~long)
+       ~mk_setter:(fun _ _ -> setter ())
+       ~mk_spec:(fun _ -> Unit setter))
 
 
 let mk_with_reset value ~reset_doc ?deprecated ~long ?parse_mode mk =
@@ -405,8 +406,9 @@ let mk_option ?(default= None) ?(default_to_string= fun _ -> "") ~f ?(mk_reset=
     ?(deprecated= []) ~long ?short ?parse_mode ?in_help ?(meta= "string") doc =
   let mk () =
     mk ~deprecated ~long ?short ~default ?parse_mode ?in_help ~meta doc ~default_to_string
-      ~decode_json:(string_json_decoder ~long) ~mk_setter:(fun var str -> var := f str) ~mk_spec:
-      (fun set -> String set )
+      ~decode_json:(string_json_decoder ~long)
+      ~mk_setter:(fun var str -> var := f str)
+      ~mk_spec:(fun set -> String set)
   in
   if mk_reset then
     let reset_doc = reset_doc_opt ~long in
@@ -470,8 +472,10 @@ let mk_bool_group ?(deprecated_no= []) ?(default= false) ?f:(f0 = Fn.id) ?(depre
 let mk_int ~default ?(f= Fn.id) ?(deprecated= []) ~long ?short ?parse_mode ?in_help ?(meta= "int")
     doc =
   mk ~deprecated ~long ?short ~default ?parse_mode ?in_help ~meta doc
-    ~default_to_string:string_of_int ~mk_setter:(fun var str -> var := f (int_of_string str))
-    ~decode_json:(string_json_decoder ~long) ~mk_spec:(fun set -> String set )
+    ~default_to_string:string_of_int
+    ~mk_setter:(fun var str -> var := f (int_of_string str))
+    ~decode_json:(string_json_decoder ~long)
+    ~mk_spec:(fun set -> String set)
 
 
 let mk_int_opt ?default ?f:(f0 = Fn.id) ?(deprecated= []) ~long ?short ?parse_mode ?in_help
@@ -483,8 +487,10 @@ let mk_int_opt ?default ?f:(f0 = Fn.id) ?(deprecated= []) ~long ?short ?parse_mo
 
 let mk_float ~default ?(deprecated= []) ~long ?short ?parse_mode ?in_help ?(meta= "float") doc =
   mk ~deprecated ~long ?short ~default ?parse_mode ?in_help ~meta doc
-    ~default_to_string:string_of_float ~mk_setter:(fun var str -> var := float_of_string str)
-    ~decode_json:(string_json_decoder ~long) ~mk_spec:(fun set -> String set )
+    ~default_to_string:string_of_float
+    ~mk_setter:(fun var str -> var := float_of_string str)
+    ~decode_json:(string_json_decoder ~long)
+    ~mk_spec:(fun set -> String set)
 
 
 let mk_float_opt ?default ?(deprecated= []) ~long ?short ?parse_mode ?in_help ?(meta= "float") doc =
@@ -496,8 +502,10 @@ let mk_float_opt ?default ?(deprecated= []) ~long ?short ?parse_mode ?in_help ?(
 let mk_string ~default ?(f= fun s -> s) ?(deprecated= []) ~long ?short ?parse_mode ?in_help
     ?(meta= "string") doc =
   mk ~deprecated ~long ?short ~default ?parse_mode ?in_help ~meta doc
-    ~default_to_string:(fun s -> s) ~mk_setter:(fun var str -> var := f str)
-    ~decode_json:(string_json_decoder ~long) ~mk_spec:(fun set -> String set )
+    ~default_to_string:(fun s -> s)
+    ~mk_setter:(fun var str -> var := f str)
+    ~decode_json:(string_json_decoder ~long)
+    ~mk_spec:(fun set -> String set)
 
 
 let mk_string_opt ?default ?(f= fun s -> s) ?mk_reset ?(deprecated= []) ~long ?short ?parse_mode
@@ -512,9 +520,10 @@ let mk_string_list ?(default= []) ?(f= fun s -> s) ?(deprecated= []) ~long ?shor
     ?in_help ?(meta= "string") doc =
   let mk () =
     mk ~deprecated ~long ?short ~default ?parse_mode ?in_help ~meta:("+" ^ meta) doc
-      ~default_to_string:(String.concat ~sep:",") ~mk_setter:(fun var str -> var := f str :: !var)
-      ~decode_json:(list_json_decoder (string_json_decoder ~long)) ~mk_spec:(fun set -> String set
-    )
+      ~default_to_string:(String.concat ~sep:",")
+      ~mk_setter:(fun var str -> var := f str :: !var)
+      ~decode_json:(list_json_decoder (string_json_decoder ~long))
+      ~mk_spec:(fun set -> String set)
   in
   let reset_doc = reset_doc_list ~long in
   mk_with_reset [] ~reset_doc ~long ?parse_mode mk
@@ -539,7 +548,8 @@ let mk_path_helper ~setter ~default_to_string ~default ~deprecated ~long ~short
     ~default_to_string
     ~mk_setter:(fun var str ->
       let abs_path = normalize_path_in_args_being_parsed ~is_anon_arg:false str in
-      setter var abs_path) ~mk_spec:(fun set -> String set )
+      setter var abs_path )
+    ~mk_spec:(fun set -> String set)
 
 
 let mk_path ~default ?(f= Fn.id) ?(deprecated= []) ~long ?short ?parse_mode ?in_help
@@ -589,8 +599,10 @@ let mk_symbol ~default ~symbols ~eq ?(f= Fn.id) ?(deprecated= []) ~long ?short ?
   let to_string sym = List.Assoc.find_exn ~equal:eq sym_to_str sym in
   let meta = Option.value meta ~default:(mk_symbols_meta symbols) in
   mk ~deprecated ~long ?short ~default ?parse_mode ?in_help ~meta doc
-    ~default_to_string:(fun s -> to_string s) ~mk_setter:(fun var str -> var := of_string str |> f)
-    ~decode_json:(string_json_decoder ~long) ~mk_spec:(fun set -> Symbol (strings, set) )
+    ~default_to_string:(fun s -> to_string s)
+    ~mk_setter:(fun var str -> var := of_string str |> f)
+    ~decode_json:(string_json_decoder ~long)
+    ~mk_spec:(fun set -> Symbol (strings, set))
 
 
 let mk_symbol_opt ~symbols ?(f= Fn.id) ?(mk_reset= true) ?(deprecated= []) ~long ?short ?parse_mode
@@ -600,8 +612,10 @@ let mk_symbol_opt ~symbols ?(f= Fn.id) ?(mk_reset= true) ?(deprecated= []) ~long
   let meta = Option.value meta ~default:(mk_symbols_meta symbols) in
   let mk () =
     mk ~deprecated ~long ?short ~default:None ?parse_mode ?in_help ~meta doc
-      ~default_to_string:(fun _ -> "") ~mk_setter:(fun var str -> var := Some (f (of_string str)))
-      ~decode_json:(string_json_decoder ~long) ~mk_spec:(fun set -> Symbol (strings, set) )
+      ~default_to_string:(fun _ -> "")
+      ~mk_setter:(fun var str -> var := Some (f (of_string str)))
+      ~decode_json:(string_json_decoder ~long)
+      ~mk_spec:(fun set -> Symbol (strings, set))
   in
   if mk_reset then
     let reset_doc = reset_doc_opt ~long in
@@ -619,8 +633,8 @@ let mk_symbol_seq ?(default= []) ~symbols ~eq ?(deprecated= []) ~long ?short ?pa
     ~default_to_string:(fun syms -> String.concat ~sep:" " (List.map ~f:to_string syms))
     ~mk_setter:(fun var str_seq -> var := List.map ~f:of_string (String.split ~on:',' str_seq))
     ~decode_json:(fun ~inferconfig_dir:_ json ->
-      [dashdash long; String.concat ~sep:"," (YBU.convert_each YBU.to_string json)]) ~mk_spec:
-    (fun set -> String set )
+      [dashdash long; String.concat ~sep:"," (YBU.convert_each YBU.to_string json)] )
+    ~mk_spec:(fun set -> String set)
 
 
 let mk_set_from_json ~default ~default_to_string ~f ?(deprecated= []) ~long ?short ?parse_mode
@@ -772,12 +786,14 @@ let mk_subcommand command ?on_unknown_arg:(on_unknown = `Reject) ~name ?deprecat
   ( match deprecated_long with
   | Some long ->
       ignore
-        (mk ~long ~default:() ?parse_mode ?in_help ~meta:"" "" ~default_to_string:(fun () -> "")
+        (mk ~long ~default:() ?parse_mode ?in_help ~meta:"" ""
+           ~default_to_string:(fun () -> "")
            ~decode_json:(fun ~inferconfig_dir:_ _ ->
              raise (Arg.Bad ("Bad option in config file: " ^ long)) )
            ~mk_setter:(fun _ _ ->
              warnf "WARNING: '%s' is deprecated. Please use '%s' instead.@\n" (dashdash long) name ;
-             switch ()) ~mk_spec:(fun set -> Unit (fun () -> set "") ))
+             switch () )
+           ~mk_spec:(fun set -> Unit (fun () -> set "")))
   | None ->
       () ) ;
   subcommands := (command, (command_doc, name, in_help)) :: !subcommands ;
@@ -1008,8 +1024,8 @@ let wrap_line indent_string wrap_length line0 =
   let add_word_to_paragraph (rev_lines, non_empty, line, line_length) word =
     let word_length =
       let len = String.length word in
-      if String.is_prefix ~prefix:"$(b," word || String.is_prefix ~prefix:"$(i," word then len - 4
-        (* length of formatting tag prefix *)
+      if String.is_prefix ~prefix:"$(b," word || String.is_prefix ~prefix:"$(i," word then
+        len - 4 (* length of formatting tag prefix *)
         - 1 (* APPROXIMATION: closing parenthesis that will come after the word, or maybe later *)
       else len
     in
@@ -1059,8 +1075,9 @@ let show_manual ?internal_section format default_doc command_opt =
         (* base indentation of documentation strings *)
       in
       `I (Format.asprintf "$(b,%s)%a%a" (dashdash long) pp_short short pp_meta meta, doc_first_line)
-      :: List.concat_map (List.concat_map ~f:(wrap_line indent_string width) doc_other_lines) ~f:
-           (fun s -> [`Noblank; `Pre s] )
+      :: List.concat_map
+           (List.concat_map ~f:(wrap_line indent_string width) doc_other_lines)
+           ~f:(fun s -> [`Noblank; `Pre s])
   in
   let option_blocks =
     match command_doc.manual_options with
@@ -1098,4 +1115,3 @@ let show_manual ?internal_section format default_doc command_opt =
   in
   Cmdliner.Manpage.print format Format.std_formatter (command_doc.title, blocks) ;
   ()
-

infer/src/base/Config.ml

@@ -667,7 +667,7 @@ and analyzer =
 - $(b,compile): similar to specifying the $(b,compile) subcommand (DEPRECATED)
 - $(b,crashcontext): experimental (see $(b,--crashcontext))|}
     ~f:(function
-        | CaptureOnly | CompileOnly as x ->
+        | (CaptureOnly | CompileOnly) as x ->
             let analyzer_str =
               List.find_map_exn string_to_analyzer ~f:(fun (s, y) ->
                   if equal_analyzer x y then Some s else None )
@@ -774,8 +774,7 @@ and ( annotation_reachability
         |> String.concat ~sep:", " ) )
       ~f:(fun b ->
         List.iter
-          ~f:(fun (var, _, _, default) ->
-            var := if b then default || !var else not default && !var)
+          ~f:(fun (var, _, _, default) -> var := if b then default || !var else not default && !var)
           !all_checkers ;
         b )
       [] (* do all the work in ~f *)
@@ -1728,10 +1727,12 @@ and report_previous =
 
 
 and rest =
-  CLOpt.mk_rest_actions ~in_help:CLOpt.([(Capture, manual_generic); (Run, manual_generic)])
+  CLOpt.mk_rest_actions
+    ~in_help:CLOpt.([(Capture, manual_generic); (Run, manual_generic)])
     "Stop argument processing, use remaining arguments as a build command" ~usage:exe_usage
     (fun build_exe ->
-      match Filename.basename build_exe with "java" | "javac" -> CLOpt.Javac | _ -> CLOpt.NoParse )
+      match Filename.basename build_exe with "java" | "javac" -> CLOpt.Javac | _ -> CLOpt.NoParse
+      )
 
 
 and results_dir =
@@ -2093,7 +2094,7 @@ let post_parsing_initialization command_opt =
         match inferconfig_file with
         | Some inferconfig ->
             Printf.sprintf "version %s/inferconfig %s" Version.commit
-              (Digest.to_hex (Digest.file inferconfig))
+              (Caml.Digest.to_hex (Caml.Digest.file inferconfig))
         | None ->
             Version.commit
       in

infer/src/base/DB.ml

@@ -164,7 +164,7 @@ let update_file_with_lock dir fname update =
   let buf = read_whole_file fd in
   reset_file fd ;
   let str = update buf in
-  let i = Unix.write fd ~buf:str ~pos:0 ~len:(String.length str) in
+  let i = Unix.write fd ~buf:(Bytes.of_string str) ~pos:0 ~len:(String.length str) in
   if Int.equal i (String.length str) then (
     Unix.lockf fd ~mode:Unix.F_ULOCK ~len:0L ;
     Unix.close fd )
@@ -265,7 +265,6 @@ module Results_dir = struct
     in
     let full_fname = Filename.concat (create dir_path) filename in
     Unix.openfile full_fname ~mode:Unix.([O_WRONLY; O_CREAT; O_TRUNC]) ~perm:0o777
-
 end
 
 let global_tenv_fname =
@@ -304,7 +303,8 @@ let fold_paths_matching ~dir ~p ~init ~f =
     Array.fold
       ~f:(fun acc file ->
         let path = dir ^/ file in
-        if Sys.is_directory path = `Yes then paths acc path else if p path then f path acc else acc)
+        if Sys.is_directory path = `Yes then paths acc path else if p path then f path acc else acc
+        )
       ~init:path_list (Sys.readdir dir)
   in
   paths init dir

infer/src/base/Die.ml

@@ -50,4 +50,3 @@ let exit_code_of_exception = function
       exitcode
   | _ ->
       (* exit code 2 is used by the OCaml runtime in cases of uncaught exceptions *) 2
-

infer/src/base/Epilogues.ml

@@ -36,4 +36,3 @@ let register ~f desc =
   Pervasives.at_exit f_no_exn ;
   (* Register signal masking. *)
   Lazy.force activate_run_epilogues_on_signal
-

infer/src/base/EventLogger.ml

@@ -70,7 +70,6 @@ end = struct
         let new_id = generate () in
         Unix.putenv ~key:infer_run_identifier_env_var ~data:new_id ;
         new_id
-
 end
 
 let get_log_identifier () = Random_id.get ()

infer/src/base/MarkupFormatter.ml

@@ -37,7 +37,6 @@ end = struct
     ; wrap_bold= wrap_simple
     ; pp_bold= pp_simple
     ; bold_to_string= Fn.id }
-
 end
 
 module PhabricatorFormatter : sig
@@ -72,7 +71,6 @@ end = struct
     ; wrap_bold
     ; pp_bold
     ; bold_to_string }
-
 end
 
 let formatter =

infer/src/base/MergeResults.ml

@@ -78,4 +78,3 @@ let merge_buck_flavors_results infer_deps_file =
       List.iter ~f:one_line lines
   | Error error ->
       L.internal_error "Couldn't read deps file '%s': %s" infer_deps_file error
-

infer/src/base/Multilinks.ml

@@ -64,4 +64,3 @@ let resolve fname =
         fname
     | Some links ->
       try DB.filename_from_string (String.Table.find_exn links base) with Not_found -> fname
-

infer/src/base/Pp.ml

@@ -63,7 +63,8 @@ let text =
 (** Default html print environment *)
 let html color =
   { text with
-    kind= HTML; cmap_norm= colormap_from_color color; cmap_foot= colormap_from_color color; color }
+    kind= HTML; cmap_norm= colormap_from_color color; cmap_foot= colormap_from_color color; color
+  }
 
 
 (** Extend the normal colormap for the given object with the given color *)
@@ -146,4 +147,3 @@ let pp_argfile fmt fname =
 let cli_args fmt args =
   F.fprintf fmt "'%a'@\n%a" (seq ~sep:"' '" string) args (seq ~sep:"\n" pp_argfile)
     (List.filter_map ~f:(String.chop_prefix ~prefix:"@") args)
-

infer/src/base/PrettyPrintable.ml

@@ -63,5 +63,4 @@ module MakePPMap (Ord : PrintableOrderedType) = struct
   let pp ~pp_value fmt m =
     let pp_item fmt (k, v) = F.fprintf fmt "%a -> %a" Ord.pp k pp_value v in
     pp_collection ~pp_item fmt (bindings m)
-
 end

infer/src/base/Process.ml

@@ -65,4 +65,3 @@ let pipeline ~producer_prog ~producer_args ~consumer_prog ~consumer_args =
         let producer_status = Unix.waitpid producer_pid in
         let consumer_status = Unix.waitpid consumer_pid in
         (producer_status, consumer_status)
-

infer/src/base/ProcessPool.ml

@@ -45,4 +45,3 @@ let start_child ~f ~pool x =
   | `In_the_parent _pid ->
       incr pool ;
       if should_wait pool then wait pool
-

infer/src/base/Serialization.ml

@@ -34,7 +34,6 @@ module Key = struct
     , 579094948
     , 972393003
     , 852343110 )
-
 end
 
 (** version of the binary files, to be incremented for each change *)
@@ -95,7 +94,8 @@ let create_serializer (key: Key.t) : 'a serializer =
         (* Retry to read for 1 second in case of end of file, *)
         (* which indicates that another process is writing the same file. *)
         let one_second = Mtime.Span.of_uint64_ns (Int64.of_int 1_000_000_000) in
-        SymOp.try_finally ~f:(fun () -> retry_exception ~timeout:one_second ~catch_exn ~f:read ())
+        SymOp.try_finally
+          ~f:(fun () -> retry_exception ~timeout:one_second ~catch_exn ~f:read ())
           ~finally:(fun () -> In_channel.close inc)
   in
   let write_to_tmp_file fname data =

infer/src/base/SourceFile.ml

@@ -179,5 +179,4 @@ module SQLite = struct
         RelativeProjectRoot rel_path
     | Sqlite3.Data.BLOB b ->
         Marshal.from_string b 0
-
 end

infer/src/base/StatisticsToolbox.ml

@@ -69,4 +69,3 @@ let compute_statistics values =
   ; p75= percentile 0.75
   ; max= percentile 1.0
   ; count= num_elements }
-

infer/src/base/Utils.ml

@@ -185,7 +185,7 @@ let directory_iter f path =
 
 let directory_is_empty path = Sys.readdir path |> Array.is_empty
 
-let string_crc_hex32 s = Digest.to_hex (Digest.string s)
+let string_crc_hex32 s = Caml.Digest.to_hex (Caml.Digest.string s)
 
 let read_json_file path =
   try Ok (Yojson.Basic.from_file path) with Sys_error msg | Yojson.Json_error msg -> Error msg
@@ -245,8 +245,8 @@ let shell_escape_command =
     | arg ->
         if Str.string_match no_quote_needed arg 0 then arg
         else if Str.string_match easy_single_quotable arg 0 then F.sprintf "'%s'" arg
-        else if Str.string_match easy_double_quotable arg 0 then arg |> Escape.escape_double_quotes
-          |> F.sprintf "\"%s\""
+        else if Str.string_match easy_double_quotable arg 0 then
+          arg |> Escape.escape_double_quotes |> F.sprintf "\"%s\""
         else
           (* ends on-going single quote, output single quote inside double quotes, then open a new single
        quote *)
@@ -338,7 +338,10 @@ let compare_versions v1 v2 =
 
 
 let write_file_with_locking ?(delete= false) ~f:do_write fname =
-  Unix.with_file ~mode:Unix.([O_WRONLY; O_CREAT]) fname ~f:(fun file_descr ->
+  Unix.with_file
+    ~mode:Unix.([O_WRONLY; O_CREAT])
+    fname
+    ~f:(fun file_descr ->
       if Unix.flock file_descr Unix.Flock_command.lock_exclusive then (
         (* make sure we're not writing over some existing, possibly longer content: some other
            process may have snagged the file from under us between open(2) and flock(2) so passing
@@ -387,4 +390,4 @@ let yield () =
   Unix.select ~read:[] ~write:[] ~except:[] ~timeout:(`After Time_ns.Span.min_value) |> ignore
 
 
-let better_hash x = Marshal.to_string x [Marshal.No_sharing] |> Digest.string
+let better_hash x = Marshal.to_string x [Marshal.No_sharing] |> Caml.Digest.string