6 files changed, 11 insertions, 40 deletions
diff --git a/camlp4/etc/pa_o.ml b/camlp4/etc/pa_o.ml
index de157dbf1..2359cccf7 100644
--- a/camlp4/etc/pa_o.ml
+++ b/camlp4/etc/pa_o.ml
@@ -933,7 +933,7 @@ EXTEND
     | "simple"
       [ "["; ct = ctyp; ","; ctcl = LIST1 ctyp SEP ","; "]";
         ci = class_longident ->
-          <:class_expr< $list:ci$ [ $ct$ , $list:ctcl$ ] >>
+          <:class_expr< $list:ci$ [ $list:[ct :: ctcl]$ ] >>
       | "["; ct = ctyp; "]"; ci = class_longident ->
           <:class_expr< $list:ci$ [ $ct$ ] >>
       | ci = class_longident -> <:class_expr< $list:ci$ >>
diff --git a/camlp4/etc/pa_olabl.ml b/camlp4/etc/pa_olabl.ml
index 0d3259ec7..e235b6de6 100644
--- a/camlp4/etc/pa_olabl.ml
+++ b/camlp4/etc/pa_olabl.ml
@@ -1471,7 +1471,7 @@ EXTEND
     | "simple"
       [ "["; ct = ctyp; ","; ctcl = LIST1 ctyp SEP ","; "]";
         ci = class_longident ->
-          <:class_expr< $list:ci$ [ $ct$ , $list:ctcl$ ] >>
+          <:class_expr< $list:ci$ [ $list:[ct :: ctcl]$ ] >>
       | "["; ct = ctyp; "]"; ci = class_longident ->
           <:class_expr< $list:ci$ [ $ct$ ] >>
       | ci = class_longident -> <:class_expr< $list:ci$ >>
diff --git a/camlp4/meta/pa_r.ml b/camlp4/meta/pa_r.ml
index 2037f3800..7743797d0 100644
--- a/camlp4/meta/pa_r.ml
+++ b/camlp4/meta/pa_r.ml
@@ -610,11 +610,8 @@ EXTEND
       [ ce = SELF; sel = LIST1 expr LEVEL "simple" ->
           <:class_expr< $ce$ $list:sel$ >> ]
     | "simple"
-      [ ci = class_longident; "["; ct = ctyp; ","; ctcl = LIST1 ctyp SEP ",";
-        "]" ->
-          <:class_expr< $list:ci$ [ $ct$ , $list:ctcl$ ] >>
-      | ci = class_longident; "["; ct = ctyp; "]" ->
-          <:class_expr< $list:ci$ [ $ct$ ] >>
+      [ ci = class_longident; "["; ctcl = LIST0 ctyp SEP ","; "]" ->
+          <:class_expr< $list:ci$ [ $list:ctcl$ ] >>
       | ci = class_longident -> <:class_expr< $list:ci$ >>
       | "object"; cspo = OPT class_self_patt; cf = class_structure; "end" ->
           <:class_expr< object $cspo$ $list:cf$ end >>
diff --git a/camlp4/meta/q_MLast.ml b/camlp4/meta/q_MLast.ml
index 6479d503d..0dfceeebd 100644
--- a/camlp4/meta/q_MLast.ml
+++ b/camlp4/meta/q_MLast.ml
@@ -668,11 +668,8 @@ EXTEND
           Node "CeApp" [ce; sel] ]
     | "simple"
       [ a = anti_ -> a
-      | ci = class_longident; "["; ct = ctyp; ","; ctcl = SLIST1 ctyp SEP ",";
-        "]" ->
-          Node "CeCon" [ci; Cons ct ctcl]
-      | ci = class_longident; "["; ct = ctyp; "]" ->
-          Node "CeCon" [ci; List [ct]]
+      | ci = class_longident; "["; ctcl = SLIST1 ctyp SEP ","; "]" ->
+          Node "CeCon" [ci; ctcl]
       | ci = class_longident -> Node "CeCon" [ci; List []]
       | "object"; csp = class_self_patt_opt; cf = class_structure; "end" ->
           Node "CeStr" [csp; cf]
diff --git a/camlp4/ocaml_src/meta/pa_r.ml b/camlp4/ocaml_src/meta/pa_r.ml
index 18feea973..c9650e06f 100644
--- a/camlp4/ocaml_src/meta/pa_r.ml
+++ b/camlp4/ocaml_src/meta/pa_r.ml
@@ -1764,25 +1764,14 @@ Grammar.extend
          (Grammar.Entry.obj
             (class_longident : 'class_longident Grammar.Entry.e));
        Gramext.Stoken ("", "[");
-       Gramext.Snterm (Grammar.Entry.obj (ctyp : 'ctyp Grammar.Entry.e));
-       Gramext.Stoken ("", "]")],
-      Gramext.action
-        (fun _ (ct : 'ctyp) _ (ci : 'class_longident) (loc : int * int) ->
-           (MLast.CeCon (loc, ci, [ct]) : 'class_expr));
-      [Gramext.Snterm
-         (Grammar.Entry.obj
-            (class_longident : 'class_longident Grammar.Entry.e));
-       Gramext.Stoken ("", "[");
-       Gramext.Snterm (Grammar.Entry.obj (ctyp : 'ctyp Grammar.Entry.e));
-       Gramext.Stoken ("", ",");
-       Gramext.Slist1sep
+       Gramext.Slist0sep
          (Gramext.Snterm (Grammar.Entry.obj (ctyp : 'ctyp Grammar.Entry.e)),
           Gramext.Stoken ("", ","));
        Gramext.Stoken ("", "]")],
       Gramext.action
-        (fun _ (ctcl : 'ctyp list) _ (ct : 'ctyp) _ (ci : 'class_longident)
+        (fun _ (ctcl : 'ctyp list) _ (ci : 'class_longident)
            (loc : int * int) ->
-           (MLast.CeCon (loc, ci, (ct :: ctcl)) : 'class_expr))]];
+           (MLast.CeCon (loc, ci, ctcl) : 'class_expr))]];
     Grammar.Entry.obj (class_structure : 'class_structure Grammar.Entry.e),
     None,
     [None, None,
diff --git a/camlp4/ocaml_src/meta/q_MLast.ml b/camlp4/ocaml_src/meta/q_MLast.ml
index b013dc72b..7ef2e2e0b 100644
--- a/camlp4/ocaml_src/meta/q_MLast.ml
+++ b/camlp4/ocaml_src/meta/q_MLast.ml
@@ -2569,17 +2569,6 @@ Grammar.extend
          (Grammar.Entry.obj
             (class_longident : 'class_longident Grammar.Entry.e));
        Gramext.Stoken ("", "[");
-       Gramext.Snterm (Grammar.Entry.obj (ctyp : 'ctyp Grammar.Entry.e));
-       Gramext.Stoken ("", "]")],
-      Gramext.action
-        (fun _ (ct : 'ctyp) _ (ci : 'class_longident) (loc : int * int) ->
-           (Node ("CeCon", [ci; List [ct]]) : 'class_expr));
-      [Gramext.Snterm
-         (Grammar.Entry.obj
-            (class_longident : 'class_longident Grammar.Entry.e));
-       Gramext.Stoken ("", "[");
-       Gramext.Snterm (Grammar.Entry.obj (ctyp : 'ctyp Grammar.Entry.e));
-       Gramext.Stoken ("", ",");
        Gramext.srules
          [[Gramext.Slist1sep
              (Gramext.Snterm
@@ -2593,9 +2582,8 @@ Grammar.extend
             (fun (a : 'anti_list) (loc : int * int) -> (a : 'anti))];
        Gramext.Stoken ("", "]")],
       Gramext.action
-        (fun _ (ctcl : ast) _ (ct : 'ctyp) _ (ci : 'class_longident)
-           (loc : int * int) ->
-           (Node ("CeCon", [ci; Cons (ct, ctcl)]) : 'class_expr));
+        (fun _ (ctcl : ast) _ (ci : 'class_longident) (loc : int * int) ->
+           (Node ("CeCon", [ci; ctcl]) : 'class_expr));
       [Gramext.Snterm (Grammar.Entry.obj (anti_ : 'anti_ Grammar.Entry.e))],
       Gramext.action
         (fun (a : 'anti_) (loc : int * int) -> (a : 'class_expr))]];