Change 'stratum' to the friendlier term 'layer'.

5 files changed, 50 insertions, 50 deletions

diff --git a/src/boot/fe/ast.ml b/src/boot/fe/ast.ml
index ce9f9cc4..5e814af3 100644
--- a/src/boot/fe/ast.ml
+++ b/src/boot/fe/ast.ml
@@ -34,10 +34,10 @@ type effect =
   | EFF_unsafe
 ;;
 
-type stratum =
-    STRAT_value
-  | STRAT_state
-  | STRAT_gc
+type layer =
+    LAYER_value
+  | LAYER_state
+  | LAYER_gc
 ;;
 
 type opacity =
@@ -94,7 +94,7 @@ and ty =
   | TY_task
 
   | TY_native of opaque_id
-  | TY_param of (ty_param_idx * stratum)
+  | TY_param of (ty_param_idx * layer)
   | TY_named of name
   | TY_type
 
@@ -181,7 +181,7 @@ and ty_fn = (ty_sig * ty_fn_aux)
 
 and ty_obj_header = (slot array * constrs)
 
-and ty_obj = (stratum * ((ident,ty_fn) Hashtbl.t))
+and ty_obj = (layer * ((ident,ty_fn) Hashtbl.t))
 
 and check_calls = (lval * (atom array)) array
 
@@ -434,7 +434,7 @@ and fn =
 and obj =
     {
       obj_state: header_slots;
-      obj_stratum: stratum;
+      obj_layer: layer;
       obj_constrs: constrs;
       obj_fns: (ident,fn identified) Hashtbl.t;
       obj_drop: block option;
@@ -449,10 +449,10 @@ and obj =
  * even if it's a type that's bound by a quantifier in its environment.
  *)
 
-and ty_param = ident * (ty_param_idx * stratum)
+and ty_param = ident * (ty_param_idx * layer)
 
 and mod_item' =
-    MOD_ITEM_type of (stratum * ty)
+    MOD_ITEM_type of (layer * ty)
   | MOD_ITEM_tag of (header_slots * opaque_id * int)
   | MOD_ITEM_mod of (mod_view * mod_items)
   | MOD_ITEM_fn of fn
@@ -723,21 +723,21 @@ and fmt_effect_qual
   fmt_effect ff e;
   if e <> EFF_pure then fmt ff " ";
 
-and fmt_stratum
+and fmt_layer
     (ff:Format.formatter)
-    (strat:stratum)
+    (la:layer)
     : unit =
-  match strat with
-      STRAT_value -> ()
-    | STRAT_state -> fmt ff "state"
-    | STRAT_gc -> fmt ff "gc"
+  match la with
+      LAYER_value -> ()
+    | LAYER_state -> fmt ff "state"
+    | LAYER_gc -> fmt ff "gc"
 
-and fmt_stratum_qual
+and fmt_layer_qual
     (ff:Format.formatter)
-    (s:stratum)
+    (s:layer)
     : unit =
-  fmt_stratum ff s;
-  if s <> STRAT_value then fmt ff " ";
+  fmt_layer ff s;
+  if s <> LAYER_value then fmt ff " ";
 
 and fmt_opacity
     (ff:Format.formatter)
@@ -810,7 +810,7 @@ and fmt_ty (ff:Format.formatter) (t:ty) : unit =
       fmt_ident_tys ff entries;
       fmt ff "@]"
 
-  | TY_param (i, s) -> (fmt_stratum_qual ff s;
+  | TY_param (i, s) -> (fmt_layer_qual ff s;
                         fmt ff "<p#%d>" i)
   | TY_native oid -> fmt ff "<native#%d>" (int_of_opaque oid)
   | TY_named n -> fmt_name ff n
@@ -833,9 +833,9 @@ and fmt_ty (ff:Format.formatter) (t:ty) : unit =
 
   | TY_constrained ctrd -> fmt_constrained ff ctrd
 
-  | TY_obj (stratum, fns) ->
+  | TY_obj (layer, fns) ->
       fmt_obox ff;
-      fmt_stratum_qual ff stratum;
+      fmt_layer_qual ff layer;
       fmt ff "obj ";
       fmt_obr ff;
       Hashtbl.iter
@@ -1629,7 +1629,7 @@ and fmt_slice (ff:Format.formatter) (slice:slice) : unit =
 
 and fmt_decl_param (ff:Format.formatter) (param:ty_param) : unit =
   let (ident, (i, s)) = param in
-  fmt_stratum_qual ff s;
+  fmt_layer_qual ff s;
   fmt_ident ff ident;
   fmt ff "=<p#%d>" i
 
@@ -1683,7 +1683,7 @@ and fmt_obj
     (obj:obj)
     : unit =
   fmt_obox ff;
-  fmt_stratum_qual ff obj.obj_stratum;
+  fmt_layer_qual ff obj.obj_layer;
   fmt ff "obj ";
   fmt_ident_and_params ff id params;
   fmt_header_slots ff obj.obj_state;
@@ -1720,7 +1720,7 @@ and fmt_mod_item (ff:Format.formatter) (id:ident) (item:mod_item) : unit =
     begin
       match item.node.decl_item with
           MOD_ITEM_type (s, ty) ->
-            fmt_stratum_qual ff s;
+            fmt_layer_qual ff s;
             fmt ff "type ";
             fmt_ident_and_params ff id params;
             fmt ff " = ";
diff --git a/src/boot/fe/fuzz.ml b/src/boot/fe/fuzz.ml
index 734ef06c..2c465be4 100644
--- a/src/boot/fe/fuzz.ml
+++ b/src/boot/fe/fuzz.ml
@@ -104,7 +104,7 @@ let rec generate_mod_item (mis:mod_items) (cx:ctxt) : unit =
     match Random.int 2 with
         0 ->
           let ty = generate_ty cx in
-          let st = Ast.STRAT_value in
+          let st = Ast.LAYER_value in
             decl (MOD_ITEM_type (st, ty))
       | _ ->
           let mis' = Hashtbl.create 0 in
diff --git a/src/boot/fe/item.ml b/src/boot/fe/item.ml
index fc144439..6cee8796 100644
--- a/src/boot/fe/item.ml
+++ b/src/boot/fe/item.ml
@@ -692,7 +692,7 @@ and parse_stmts_including_none (ps:pstate) : Ast.stmt array =
 and parse_ty_param (iref:int ref) (ps:pstate) : Ast.ty_param identified =
   let apos = lexpos ps in
   let _ = Pexp.parse_opacity ps in
-  let s = Pexp.parse_stratum ps in
+  let s = Pexp.parse_layer ps in
   let ident = Pexp.parse_ident ps in
   let i = !iref in
   let bpos = lexpos ps in
@@ -842,7 +842,7 @@ and parse_optional_meta_pat (ps:pstate) (ident:Ast.ident) : Ast.meta_pat =
 and parse_obj_item
     (ps:pstate)
     (apos:pos)
-    (stratum:Ast.stratum)
+    (layer:Ast.layer)
     : (Ast.ident * Ast.mod_item) =
   expect ps OBJ;
   let (ident, params) = parse_ident_and_params ps "obj" in
@@ -871,7 +871,7 @@ and parse_obj_item
       expect ps RBRACE;
       let bpos = lexpos ps in
       let obj = { Ast.obj_state = state;
-                  Ast.obj_stratum = stratum;
+                  Ast.obj_layer = layer;
                   Ast.obj_constrs = constrs;
                   Ast.obj_fns = fns;
                   Ast.obj_drop = !drop }
@@ -883,7 +883,7 @@ and parse_obj_item
 and parse_tag_item
     (ps:pstate)
     (apos:pos)
-    (stratum:Ast.stratum)
+    (layer:Ast.layer)
     : (Ast.ident * Ast.mod_item) array =
   expect ps TAG;
   let (ident, params) = parse_ident_and_params ps "tag" in
@@ -945,14 +945,14 @@ and parse_tag_item
   let ty_item =
     (ident,
      span ps apos bpos
-       (decl params (Ast.MOD_ITEM_type (stratum, ty))))
+       (decl params (Ast.MOD_ITEM_type (layer, ty))))
   in
     Array.append [| ty_item |] constructors
 
 and parse_type_item
     (ps:pstate)
     (apos:pos)
-    (stratum:Ast.stratum)
+    (layer:Ast.layer)
     : (Ast.ident * Ast.mod_item) =
   expect ps TYPE;
   let (ident, params) = parse_ident_and_params ps "type" in
@@ -960,7 +960,7 @@ and parse_type_item
   let ty = ctxt "mod type item: ty" Pexp.parse_ty ps in
   let _ = expect ps SEMI in
   let bpos = lexpos ps in
-  let item = Ast.MOD_ITEM_type (stratum, ty) in
+  let item = Ast.MOD_ITEM_type (layer, ty) in
     (ident, span ps apos bpos (decl params item))
 
 and parse_mod_item (ps:pstate)
@@ -992,25 +992,25 @@ and parse_mod_item (ps:pstate)
         STATE | GC | IMPURE | UNSAFE | ABS
       | TYPE | OBJ | TAG | FN | ITER ->
           let _ = Pexp.parse_opacity ps in
-          let stratum = Pexp.parse_stratum ps in
+          let layer = Pexp.parse_layer ps in
           let effect = Pexp.parse_effect ps in
             begin
               match peek ps with
                   OBJ ->
                     if effect <> Ast.EFF_pure
                     then raise (err "effect specified for obj" ps);
-                    [| parse_obj_item ps apos stratum |]
+                    [| parse_obj_item ps apos layer |]
                 | TAG ->
                     if effect <> Ast.EFF_pure
                     then raise (err "effect specified for tag" ps);
-                    parse_tag_item ps apos stratum
+                    parse_tag_item ps apos layer
                 | TYPE ->
                     if effect <> Ast.EFF_pure
                     then raise (err "effect specified for type" ps);
-                    [| parse_type_item ps apos stratum |]
+                    [| parse_type_item ps apos layer |]
                 | _ ->
-                    if stratum <> Ast.STRAT_value
-                    then raise (err "stratum specified for fn or iter" ps);
+                    if layer <> Ast.LAYER_value
+                    then raise (err "layer specified for fn or iter" ps);
                     let is_iter = (peek ps) = ITER in
                       bump ps;
                       let (ident, params) = parse_ident_and_params ps "fn" in
@@ -1159,7 +1159,7 @@ and parse_native_mod_item_from_signature (ps:pstate)
           expect ps SEMI;
           let bpos = lexpos ps in
             [| (ident, span ps apos bpos
-                  (decl params (Ast.MOD_ITEM_type (Ast.STRAT_value, t)))) |]
+                  (decl params (Ast.MOD_ITEM_type (Ast.LAYER_value, t)))) |]
 
     | _ -> raise (unexpected ps)
 
diff --git a/src/boot/fe/pexp.ml b/src/boot/fe/pexp.ml
index 1b26431d..2f9c2bad 100644
--- a/src/boot/fe/pexp.ml
+++ b/src/boot/fe/pexp.ml
@@ -145,11 +145,11 @@ and parse_opacity (ps:pstate) : Ast.opacity =
       ABS -> bump ps; Ast.OPA_abstract
     |  _ -> Ast.OPA_transparent
 
-and parse_stratum (ps:pstate) : Ast.stratum =
+and parse_layer (ps:pstate) : Ast.layer =
   match peek ps with
-      STATE -> bump ps; Ast.STRAT_state
-    | GC -> bump ps; Ast.STRAT_gc
-    |  _ -> Ast.STRAT_value
+      STATE -> bump ps; Ast.LAYER_state
+    | GC -> bump ps; Ast.LAYER_gc
+    |  _ -> Ast.LAYER_value
 
 and parse_effect (ps:pstate) : Ast.effect =
   match peek ps with
@@ -274,7 +274,7 @@ and parse_atomic_ty (ps:pstate) : Ast.ty =
         Ast.TY_mach m
 
     | STATE | GC | IMPURE | UNSAFE | OBJ | FN | ITER ->
-        let stratum = parse_stratum ps in
+        let layer = parse_layer ps in
         let effect = parse_effect ps in
           begin
             match peek ps with
@@ -295,11 +295,11 @@ and parse_atomic_ty (ps:pstate) : Ast.ty =
                   in
                     ignore (bracketed_zero_or_more LBRACE RBRACE
                               None parse_method ps);
-                    Ast.TY_obj (stratum, methods)
+                    Ast.TY_obj (layer, methods)
 
               | FN | ITER ->
-                  if stratum <> Ast.STRAT_value
-                  then raise (err "stratum specified for fn or iter" ps);
+                  if layer <> Ast.LAYER_value
+                  then raise (err "layer specified for fn or iter" ps);
                   Ast.TY_fn (fst (parse_ty_fn effect ps))
               | _ -> raise (unexpected ps)
           end
diff --git a/src/boot/fe/token.ml b/src/boot/fe/token.ml
index 6c2282de..7467d4e6 100644
--- a/src/boot/fe/token.ml
+++ b/src/boot/fe/token.ml
@@ -83,7 +83,7 @@ type token =
   (* Opacity keywords *)
   | ABS
 
-  (* Stratum keywords *)
+  (* Layer keywords *)
   | STATE
   | GC
 
@@ -246,7 +246,7 @@ let rec string_of_tok t =
     (* Opacity keywords *)
     | ABS        -> "abs"
 
-    (* Stratum keywords *)
+    (* Layer keywords *)
     | STATE      -> "state"
     | GC         -> "gc"