[biabduction] Delete UNARY_MINUS_APPLIED_TO_UNSIGNED_EXPRESSION

Summary: This is unused so we can delete it.

Reviewed By: ezgicicek

Differential Revision: D22184609

fbshipit-source-id: 42dfaffc3

infer/man/man1/infer-full.txt

@@ -495,8 +495,6 @@ OPTIONS
              Symexec_memory_error (enabled by default),
              THREAD_SAFETY_VIOLATION (enabled by default),
              TOPL_ERROR (enabled by default),
-             UNARY_MINUS_APPLIED_TO_UNSIGNED_EXPRESSION (disabled by
-           default),
              UNAVAILABLE_API_IN_SUPPORTED_IOS_SDK (enabled by default),
              UNINITIALIZED_VALUE (enabled by default),
              UNREACHABLE_CODE (enabled by default),

infer/man/man1/infer-report.txt

@@ -220,8 +220,6 @@ OPTIONS
              Symexec_memory_error (enabled by default),
              THREAD_SAFETY_VIOLATION (enabled by default),
              TOPL_ERROR (enabled by default),
-             UNARY_MINUS_APPLIED_TO_UNSIGNED_EXPRESSION (disabled by
-           default),
              UNAVAILABLE_API_IN_SUPPORTED_IOS_SDK (enabled by default),
              UNINITIALIZED_VALUE (enabled by default),
              UNREACHABLE_CODE (enabled by default),

infer/man/man1/infer.txt

@@ -495,8 +495,6 @@ OPTIONS
              Symexec_memory_error (enabled by default),
              THREAD_SAFETY_VIOLATION (enabled by default),
              TOPL_ERROR (enabled by default),
-             UNARY_MINUS_APPLIED_TO_UNSIGNED_EXPRESSION (disabled by
-           default),
              UNAVAILABLE_API_IN_SUPPORTED_IOS_SDK (enabled by default),
              UNINITIALIZED_VALUE (enabled by default),
              UNREACHABLE_CODE (enabled by default),

infer/src/absint/Localise.ml

@@ -564,23 +564,6 @@ let desc_registered_observer_being_deallocated pvar loc =
   ; tags= !tags }
 
 
-let desc_unary_minus_applied_to_unsigned_expression expr_str_opt typ_str loc =
-  let tags = Tags.create () in
-  let expression =
-    match expr_str_opt with
-    | Some s ->
-        Tags.update tags Tags.value s ;
-        "expression " ^ s
-    | None ->
-        "an expression"
-  in
-  let description =
-    Format.asprintf "A unary minus is applied to %a of type %s %s" MF.pp_monospaced expression
-      typ_str (at_line tags loc)
-  in
-  {no_desc with descriptions= [description]; tags= !tags}
-
-
 let desc_skip_function proc_name =
   let tags = Tags.create () in
   let proc_name_str = Procname.to_string proc_name in

infer/src/absint/Localise.mli

@@ -135,9 +135,6 @@ val desc_skip_function : Procname.t -> error_desc
 
 val desc_inherently_dangerous_function : Procname.t -> error_desc
 
-val desc_unary_minus_applied_to_unsigned_expression :
-  string option -> string -> Location.t -> error_desc
-
 val desc_uninitialized_dangling_pointer_deref : deref_str -> string -> Location.t -> error_desc
 
 val access_desc : access option -> string list

infer/src/base/IssueType.ml

@@ -889,10 +889,6 @@ let complexity_increase ~kind ~is_on_ui_thread =
 
 let topl_error = register ~id:"TOPL_ERROR" Error TOPL ~user_documentation:"Experimental."
 
-let unary_minus_applied_to_unsigned_expression =
-  register ~enabled:false ~id:"UNARY_MINUS_APPLIED_TO_UNSIGNED_EXPRESSION" Warning
-    Biabduction (* TODO *) ~user_documentation:""
-
 
 let _unavailable_api_in_supported_ios_sdk =
   register ~id:"UNAVAILABLE_API_IN_SUPPORTED_IOS_SDK" Warning Linters

infer/src/base/IssueType.mli

@@ -318,8 +318,6 @@ val thread_safety_violation : t
 
 val topl_error : t
 
-val unary_minus_applied_to_unsigned_expression : t
-
 val uninitialized_value : t
 
 val unreachable_code_after : t

infer/src/biabduction/Exceptions.ml

@@ -73,8 +73,6 @@ exception Skip_function of Localise.error_desc
 
 exception Symexec_memory_error of L.ocaml_pos
 
-exception Unary_minus_applied_to_unsigned_expression of Localise.error_desc * L.ocaml_pos
-
 exception Wrong_argument_number of L.ocaml_pos
 
 let recognize_exception exn : IssueToReport.t =
@@ -169,10 +167,6 @@ let recognize_exception exn : IssueToReport.t =
       { issue_type= IssueType.symexec_memory_error
       ; description= Localise.no_desc
       ; ocaml_pos= Some ocaml_pos }
-  | Unary_minus_applied_to_unsigned_expression (desc, ocaml_pos) ->
-      { issue_type= IssueType.unary_minus_applied_to_unsigned_expression
-      ; description= desc
-      ; ocaml_pos= Some ocaml_pos }
   | Wrong_argument_number ocaml_pos ->
       { issue_type= IssueType.wrong_argument_number
       ; description= Localise.no_desc

infer/src/biabduction/Exceptions.mli

@@ -72,8 +72,6 @@ exception Skip_function of Localise.error_desc
 
 exception Symexec_memory_error of Logging.ocaml_pos
 
-exception Unary_minus_applied_to_unsigned_expression of Localise.error_desc * Logging.ocaml_pos
-
 exception Wrong_argument_number of Logging.ocaml_pos
 
 val handle_exception : exn -> bool

infer/src/biabduction/SymExec.ml

@@ -412,15 +412,7 @@ let check_arith_norm_exp {InterproceduralAnalysis.proc_desc; err_log; tenv} exp
       let exn = Exceptions.Divide_by_zero (desc, __POS__) in
       BiabductionReporting.log_issue_deprecated_using_state proc_desc err_log exn ;
       (Prop.exp_normalize_prop tenv prop exp, prop')
-  | Some (Attribute.UminusUnsigned (e, typ)), prop' ->
+  | Some (Attribute.UminusUnsigned _), prop' | None, prop' ->
-      let desc =
-        Errdesc.explain_unary_minus_applied_to_unsigned_expression tenv e typ
-          (AnalysisState.get_node_exn ()) (AnalysisState.get_loc_exn ())
-      in
-      let exn = Exceptions.Unary_minus_applied_to_unsigned_expression (desc, __POS__) in
-      BiabductionReporting.log_issue_deprecated_using_state proc_desc err_log exn ;
-      (Prop.exp_normalize_prop tenv prop exp, prop')
-  | None, prop' ->
       (Prop.exp_normalize_prop tenv prop exp, prop')
 
 

infer/src/biabduction/errdesc.ml

@@ -1100,17 +1100,5 @@ let explain_condition_always_true_false tenv i cond node loc =
   Localise.desc_condition_always_true_false i cond_str_opt loc
 
 
-(** explain unary minus applied to unsigned expression *)
-let explain_unary_minus_applied_to_unsigned_expression tenv exp typ node loc =
-  let exp_str_opt =
-    match exp_rv_dexp tenv node exp with Some de -> Some (DExp.to_string de) | None -> None
-  in
-  let typ_str =
-    let pp fmt = Typ.pp_full Pp.text fmt typ in
-    F.asprintf "%t" pp
-  in
-  Localise.desc_unary_minus_applied_to_unsigned_expression exp_str_opt typ_str loc
-
-
 let warning_err loc fmt_string =
   L.(debug Analysis Medium) ("%a: Warning: " ^^ fmt_string) Location.pp loc

infer/src/biabduction/errdesc.mli

@@ -72,10 +72,6 @@ val explain_condition_always_true_false :
   Tenv.t -> IntLit.t -> Exp.t -> Procdesc.Node.t -> Location.t -> Localise.error_desc
 (** explain a condition which is always true or false *)
 
-val explain_unary_minus_applied_to_unsigned_expression :
-  Tenv.t -> Exp.t -> Typ.t -> Procdesc.Node.t -> Location.t -> Localise.error_desc
-(** explain unary minus applied to unsigned expression *)
-
 val explain_leak :
      Tenv.t
   -> Predicates.hpred