diff --git a/infer/src/IR/Annot.ml b/infer/src/IR/Annot.ml
index 580df3c73..187726c76 100644
--- a/infer/src/IR/Annot.ml
+++ b/infer/src/IR/Annot.ml
@@ -49,7 +49,7 @@ module Item = struct
   (** Empty item annotation. *)
   let empty = []
 
-  (** Check if the item annodation is empty. *)
+  (** Check if the item annotation is empty. *)
   let is_empty ia = List.is_empty ia
 end
 
@@ -66,17 +66,16 @@ module Class = struct
 end
 
 module Method = struct
-  (** Annotation for a method: return value and list of parameters. *)
-  type t = Item.t * Item.t list [@@deriving compare]
-
-  let equal = [%compare.equal: t]
+  type t = {return: Item.t; params: Item.t list}
 
   (** Pretty print a method annotation. *)
-  let pp s fmt (ia, ial) = F.fprintf fmt "%a %s(%a)" Item.pp ia s (Pp.seq Item.pp) ial
+  let pp s fmt {return; params} =
+    F.fprintf fmt "%a %s(%a)" Item.pp return s (Pp.seq Item.pp) params
+
 
   (** Empty method annotation. *)
-  let empty = ([], [])
+  let empty = {return= []; params= []}
 
-  (** Check if the method annodation is empty. *)
-  let is_empty (ia, ial) = List.for_all ~f:Item.is_empty (ia :: ial)
+  (** Check if the method annotation is empty. *)
+  let is_empty {return; params} = Item.is_empty return && List.for_all ~f:Item.is_empty params
 end
diff --git a/infer/src/IR/Annot.mli b/infer/src/IR/Annot.mli
index bc9e2928e..01883d495 100644
--- a/infer/src/IR/Annot.mli
+++ b/infer/src/IR/Annot.mli
@@ -47,15 +47,13 @@ end
 
 module Method : sig
   (** Annotation for a method: return value and list of parameters. *)
-  type t = Item.t * Item.t list [@@deriving compare]
-
-  val equal : t -> t -> bool
+  type t = {return: Item.t; params: Item.t list}
 
   val empty : t
   (** Empty method annotation. *)
 
   val is_empty : t -> bool
-  (** Check if the method annodation is empty. *)
+  (** Check if the method annotation is empty. *)
 
   val pp : string -> F.formatter -> t -> unit
   (** Pretty print a method annotation. *)
diff --git a/infer/src/IR/ProcAttributes.ml b/infer/src/IR/ProcAttributes.ml
index 480be23ca..5c1d41f81 100644
--- a/infer/src/IR/ProcAttributes.ml
+++ b/infer/src/IR/ProcAttributes.ml
@@ -63,9 +63,6 @@ type t =
   ; proc_name: Typ.Procname.t  (** name of the procedure *)
   ; ret_type: Typ.t  (** return type *)
   ; has_added_return_param: bool  (** whether or not a return param was added *) }
-[@@deriving compare]
-
-let equal = [%compare.equal: t]
 
 let default translation_unit proc_name =
   { access= PredSymb.Default
@@ -175,7 +172,7 @@ let pp f
       locals ;
   pp_bool_default ~default:default.has_added_return_param "has_added_return_param"
     has_added_return_param f () ;
-  if not (Annot.Method.equal default.method_annotation method_annotation) then
+  if not (Annot.Method.is_empty method_annotation) then
     F.fprintf f "; method_annotation= %a@," (Annot.Method.pp "") method_annotation ;
   if not ([%compare.equal: objc_accessor_type option] default.objc_accessor objc_accessor) then
     F.fprintf f "; objc_accessor= %a@," (Pp.option pp_objc_accessor_type) objc_accessor ;
diff --git a/infer/src/IR/ProcAttributes.mli b/infer/src/IR/ProcAttributes.mli
index 25c4a8676..ea9365133 100644
--- a/infer/src/IR/ProcAttributes.mli
+++ b/infer/src/IR/ProcAttributes.mli
@@ -47,9 +47,6 @@ type t =
   ; ret_type: Typ.t  (** return type *)
   ; has_added_return_param: bool  (** whether or not a return param was added *) }
 
-val equal : t -> t -> bool [@@warning "-32"]
-(** can be useful for debugging *)
-
 val default : SourceFile.t -> Typ.Procname.t -> t
 (** Create a proc_attributes with default values. *)
 
diff --git a/infer/src/IR/SpecializeProcdesc.ml b/infer/src/IR/SpecializeProcdesc.ml
index 7f5804c26..755c3111e 100644
--- a/infer/src/IR/SpecializeProcdesc.ml
+++ b/infer/src/IR/SpecializeProcdesc.ml
@@ -299,7 +299,7 @@ let with_block_args callee_pdesc pname_with_block_args block_args =
   let new_formals_blocks_captured_vars, extended_formals_annots =
     let new_formals_blocks_captured_vars_with_annots =
       let formals_annots =
-        List.zip_exn callee_attributes.formals (snd callee_attributes.method_annotation)
+        List.zip_exn callee_attributes.formals callee_attributes.method_annotation.params
       in
       List.fold formals_annots ~init:[] ~f:(fun acc ((param_name, typ), annot) ->
           try
@@ -327,7 +327,8 @@ let with_block_args callee_pdesc pname_with_block_args block_args =
       proc_name= pname_with_block_args
     ; is_defined= true
     ; formals= new_formals_blocks_captured_vars
-    ; method_annotation= (fst callee_attributes.method_annotation, extended_formals_annots)
+    ; method_annotation=
+        {return= callee_attributes.method_annotation.return; params= extended_formals_annots}
     ; translation_unit }
   in
   let resolved_pdesc = Procdesc.from_proc_attributes resolved_attributes in
diff --git a/infer/src/backend/reporting.ml b/infer/src/backend/reporting.ml
index 73f826433..58b7cd2e7 100644
--- a/infer/src/backend/reporting.ml
+++ b/infer/src/backend/reporting.ml
@@ -39,7 +39,7 @@ let log_issue_from_summary severity summary ~node ~session ~loc ~ltr ?extras exn
   let should_suppress_lint =
     Language.curr_language_is Java
     && Annotations.ia_is_suppress_lint
-         (fst (Summary.get_attributes summary).ProcAttributes.method_annotation)
+         (Summary.get_attributes summary).ProcAttributes.method_annotation.return
   in
   if should_suppress_lint || is_java_generated_method then () (* Skip the reporting *)
   else
diff --git a/infer/src/biabduction/SymExec.ml b/infer/src/biabduction/SymExec.ml
index f0edef6bc..ac67ee8ed 100644
--- a/infer/src/biabduction/SymExec.ml
+++ b/infer/src/biabduction/SymExec.ml
@@ -1056,8 +1056,7 @@ let execute_load ?(report_deref_errors = true) pname pdesc tenv id rhs_exp typ l
 let load_ret_annots pname =
   match Attributes.load pname with
   | Some attrs ->
-      let ret_annots, _ = attrs.ProcAttributes.method_annotation in
-      ret_annots
+      attrs.ProcAttributes.method_annotation.return
   | None ->
       Annot.Item.empty
 
@@ -1346,7 +1345,7 @@ let rec sym_exec exe_env tenv current_pdesc instr_ (prop_ : Prop.normal Prop.t)
                   (call_args prop_ callee_pname norm_args ret_id_typ loc)
             | Some reason ->
                 let proc_attrs = Summary.get_attributes resolved_summary in
-                let ret_annots, _ = proc_attrs.ProcAttributes.method_annotation in
+                let ret_annots = proc_attrs.ProcAttributes.method_annotation.return in
                 exec_skip_call ~reason resolved_pname ret_annots proc_attrs.ProcAttributes.ret_type
             ) )
       | Java callee_pname_java ->
@@ -1372,7 +1371,7 @@ let rec sym_exec exe_env tenv current_pdesc instr_ (prop_ : Prop.normal Prop.t)
                   proc_call exe_env callee_summary handled_args
               | Some reason ->
                   let proc_attrs = Summary.get_attributes callee_summary in
-                  let ret_annots, _ = proc_attrs.ProcAttributes.method_annotation in
+                  let ret_annots = proc_attrs.ProcAttributes.method_annotation.return in
                   exec_skip_call ~reason ret_annots proc_attrs.ProcAttributes.ret_type )
           in
           List.fold ~f:(fun acc pname -> exec_one_pname pname @ acc) ~init:[] resolved_pnames
@@ -1427,10 +1426,7 @@ let rec sym_exec exe_env tenv current_pdesc instr_ (prop_ : Prop.normal Prop.t)
                     let ret_annots =
                       match resolved_summary_opt with
                       | Some summ ->
-                          let ret_annots, _ =
-                            (Summary.get_attributes summ).ProcAttributes.method_annotation
-                          in
-                          ret_annots
+                          (Summary.get_attributes summ).ProcAttributes.method_annotation.return
                       | None ->
                           load_ret_annots resolved_pname
                     in
diff --git a/infer/src/biabduction/Tabulation.ml b/infer/src/biabduction/Tabulation.ml
index c382dc36e..d9f28f2de 100644
--- a/infer/src/biabduction/Tabulation.ml
+++ b/infer/src/biabduction/Tabulation.ml
@@ -1430,7 +1430,7 @@ let exe_call_postprocess tenv ret_id trace_call callee_pname callee_attrs loc re
       ~f:(fun (p, path) -> (quantify_path_idents_remove_constant_strings tenv p, path))
       res_with_path_idents
   in
-  let ret_annot, _ = callee_attrs.ProcAttributes.method_annotation in
+  let ret_annot = callee_attrs.ProcAttributes.method_annotation.return in
   let returns_nullable ret_annot = Annotations.ia_is_nullable ret_annot in
   let should_add_ret_attr _ =
     let is_likely_getter = function
diff --git a/infer/src/checkers/annotations.ml b/infer/src/checkers/annotations.ml
index 940e26077..3caa41fbb 100644
--- a/infer/src/checkers/annotations.ml
+++ b/infer/src/checkers/annotations.ml
@@ -115,9 +115,10 @@ let ia_has_annotation_with (ia : Annot.Item.t) (predicate : Annot.t -> bool) : b
   List.exists ~f:(fun (a, _) -> predicate a) ia
 
 
-let ma_has_annotation_with ((ia, ial) : Annot.Method.t) (predicate : Annot.t -> bool) : bool =
+let ma_has_annotation_with ({return; params} : Annot.Method.t) (predicate : Annot.t -> bool) : bool
+    =
   let has_annot a = ia_has_annotation_with a predicate in
-  has_annot ia || List.exists ~f:has_annot ial
+  has_annot return || List.exists ~f:has_annot params
 
 
 (** [annot_ends_with annot ann_name] returns true if the class name of [annot], without the package,
@@ -137,7 +138,7 @@ let ia_ends_with ia ann_name = List.exists ~f:(fun (a, _) -> annot_ends_with a a
 let ia_contains ia ann_name = List.exists ~f:(class_name_matches ann_name) ia
 
 let pdesc_get_return_annot pdesc =
-  fst (Procdesc.get_attributes pdesc).ProcAttributes.method_annotation
+  (Procdesc.get_attributes pdesc).ProcAttributes.method_annotation.return
 
 
 let pdesc_has_return_annot pdesc predicate = predicate (pdesc_get_return_annot pdesc)
@@ -151,7 +152,7 @@ let pdesc_return_annot_ends_with pdesc annot =
 let pname_has_return_annot pname ~attrs_of_pname predicate =
   match attrs_of_pname pname with
   | Some attributes ->
-      predicate (fst attributes.ProcAttributes.method_annotation)
+      predicate attributes.ProcAttributes.method_annotation.return
   | None ->
       false
 
diff --git a/infer/src/clang/cMethod_trans.ml b/infer/src/clang/cMethod_trans.ml
index 9d219fbd5..e7efd7bd6 100644
--- a/infer/src/clang/cMethod_trans.ml
+++ b/infer/src/clang/cMethod_trans.ml
@@ -223,12 +223,12 @@ let create_local_procdesc ?(set_objc_accessor_attr = false) trans_unit_ctx cfg t
   in
   let create_new_procdesc () =
     let all_params = Option.to_list ms.CMethodSignature.class_param @ ms.CMethodSignature.params in
-    let params_annots =
-      List.map ~f:(fun ({annot} : CMethodSignature.param_type) -> annot) all_params
-    in
-    let return_annot = snd ms.CMethodSignature.ret_type in
     let has_added_return_param = ms.CMethodSignature.has_added_return_param in
-    let method_annotation = (return_annot, params_annots) in
+    let method_annotation =
+      let return = snd ms.CMethodSignature.ret_type in
+      let params = List.map ~f:(fun ({annot} : CMethodSignature.param_type) -> annot) all_params in
+      Annot.Method.{return; params}
+    in
     let formals =
       List.map ~f:(fun ({name; typ} : CMethodSignature.param_type) -> (name, typ)) all_params
     in
diff --git a/infer/src/eradicate/AnnotatedSignature.ml b/infer/src/eradicate/AnnotatedSignature.ml
index 3a3cc8fd8..18504ced1 100644
--- a/infer/src/eradicate/AnnotatedSignature.ml
+++ b/infer/src/eradicate/AnnotatedSignature.ml
@@ -25,7 +25,7 @@ let get proc_attributes : t =
   let method_annotation = proc_attributes.ProcAttributes.method_annotation in
   let formals = proc_attributes.ProcAttributes.formals in
   let ret_type = proc_attributes.ProcAttributes.ret_type in
-  let ia, ial0 = method_annotation in
+  let Annot.Method.({return; params}) = method_annotation in
   let natl =
     let rec extract ial parl =
       match (ial, parl) with
@@ -38,9 +38,9 @@ let get proc_attributes : t =
       | _ :: _, [] ->
           assert false
     in
-    List.rev (extract (List.rev ial0) (List.rev formals))
+    List.rev (extract (List.rev params) (List.rev formals))
   in
-  let annotated_signature = {ret= (ia, ret_type); params= natl} in
+  let annotated_signature = {ret= (return, ret_type); params= natl} in
   annotated_signature
 
 
diff --git a/infer/src/java/jAnnotation.ml b/infer/src/java/jAnnotation.ml
index 7efb1a1ac..8ba61860c 100644
--- a/infer/src/java/jAnnotation.ml
+++ b/infer/src/java/jAnnotation.ml
@@ -44,6 +44,6 @@ let translate_item avlist : Annot.Item.t =
 let translate_method ann : Annot.Method.t =
   let global_ann = ann.Javalib.ma_global in
   let param_ann = ann.Javalib.ma_parameters in
-  let ret_item = translate_item global_ann in
-  let param_items = List.map ~f:translate_item param_ann in
-  (ret_item, param_items)
+  let return = translate_item global_ann in
+  let params = List.map ~f:translate_item param_ann in
+  {return; params}