[easy] Java nits

Reviewed By: sblackshear

Differential Revision: D7290400

fbshipit-source-id: 42945c8

infer/src/IR/Typ.ml

@@ -593,11 +593,11 @@ module Procname = struct
 
     let get_method j = j.method_name
 
-    let replace_method j mname = {j with method_name= mname}
+    let replace_method_name method_name j = {j with method_name}
 
-    let replace_return_type j ret_type = {j with return_type= Some ret_type}
+    let replace_parameters parameters j = {j with parameters}
 
-    let replace_parameters j parameters = {j with parameters}
+    let replace_return_type ret_type j = {j with return_type= Some ret_type}
 
     let get_return_type j = return_type_to_string j Verbose
 

infer/src/IR/Typ.mli

@@ -286,10 +286,13 @@ module Procname : sig
     (** Create a Java procedure name from its
         class_name method_name args_type_name return_type_name method_kind. *)
 
-    val replace_parameters : t -> java_type list -> t
+    val replace_method_name : string -> t -> t
+    (** Replace the method name of an existing java procname. *)
+
+    val replace_parameters : java_type list -> t -> t
     (** Replace the parameters of a java procname. *)
 
-    val replace_return_type : t -> java_type -> t
+    val replace_return_type : java_type -> t -> t
     (** Replace the method of a java procname. *)
 
     val get_class_name : t -> string
@@ -310,9 +313,6 @@ module Procname : sig
     val get_parameters : t -> java_type list
     (** Return the parameters of a java procedure name. *)
 
-    val replace_method : t -> string -> t
-    (** Replace the method name of an existing java procname. *)
-
     val get_return_typ : t -> typ
     (** Return the return type of [pname_java]. return Tvoid if there's no return type *)
 

infer/src/backend/symExec.ml

@@ -620,7 +620,7 @@ let resolve_java_pname tenv prop args pname_java call_flags : Typ.Procname.Java.
         (Typ.Procname.Java.get_parameters resolved_pname_java)
       |> List.rev
     in
-    Typ.Procname.Java.replace_parameters resolved_pname_java resolved_params
+    Typ.Procname.Java.replace_parameters resolved_params resolved_pname_java
   in
   let resolved_pname_java, other_args =
     let pname = Typ.Procname.Java pname_java

infer/src/eradicate/typeCheck.ml

@@ -709,11 +709,9 @@ let typecheck_instr tenv ext calls_this checks (node: Procdesc.Node.t) idenv get
         let pname_get_from_pname_put pname_put =
           let object_t = (Some "java.lang", "Object") in
           let parameters = [object_t] in
-          Typ.Procname.Java.replace_parameters
-            (Typ.Procname.Java.replace_return_type
-               (Typ.Procname.Java.replace_method pname_put "get")
-               object_t)
-            parameters
+          pname_put |> Typ.Procname.Java.replace_method_name "get"
+          |> Typ.Procname.Java.replace_return_type object_t
+          |> Typ.Procname.Java.replace_parameters parameters
         in
         match call_params with
         | ((_, Exp.Lvar pv_map), _) :: ((_, exp_key), _) :: ((_, exp_value), typ_value) :: _
@@ -917,9 +915,8 @@ let typecheck_instr tenv ext calls_this checks (node: Procdesc.Node.t) idenv get
                   (DExp.Dconst Const.Cfun Typ.Procname.Java pname_java, args, loc, call_flags) ->
                 let pname_java' =
                   let object_t = (Some "java.lang", "Object") in
-                  Typ.Procname.Java.replace_return_type
-                    (Typ.Procname.Java.replace_method pname_java "get")
-                    object_t
+                  pname_java |> Typ.Procname.Java.replace_method_name "get"
+                  |> Typ.Procname.Java.replace_return_type object_t
                 in
                 let fun_dexp = DExp.Dconst (Const.Cfun (Typ.Procname.Java pname_java')) in
                 Some (DExp.Dretcall (fun_dexp, args, loc, call_flags))

infer/src/java/jTransType.ml

@@ -180,10 +180,7 @@ let rec string_of_type vt =
         JBasics.cn_name cn
 
 
-let package_to_string p =
-  let rec aux p = match p with [] -> "" | [p] -> p | p :: rest -> p ^ "." ^ aux rest in
-  match p with [] -> None | _ -> Some (aux p)
-
+let package_to_string = function [] -> None | p -> Some (String.concat ~sep:"." p)
 
 let cn_to_java_type cn = (package_to_string (JBasics.cn_package cn), JBasics.cn_simple_name cn)
 

infer/src/quandary/TaintAnalysis.ml

@@ -542,12 +542,8 @@ module Make (TaintSpecification : TaintSpec.S) = struct
           let handle_model callee_pname access_tree model =
             let is_variadic =
               match callee_pname with
-              | Typ.Procname.Java pname -> (
-                match List.rev (Typ.Procname.Java.get_parameters pname) with
-                | (_, "java.lang.Object[]") :: _ ->
-                    true
-                | _ ->
-                    false )
+              | Typ.Procname.Java pname ->
+                  Typ.Procname.Java.is_vararg pname
               | _ ->
                   false
             in