diff --git a/.drom b/.drom
index 3195a74..d201acb 100644
--- a/.drom
+++ b/.drom
@@ -2,7 +2,7 @@
 
 # hash of toml configuration files
 # used for generation of all files
-0c9d153828991ed03dadaee3e6e912de:.
+bb15025d460dd55499bf2bc9c5f0999d:.
 # end context for .
 
 # begin context for .github/workflows/doc-deploy.yml
@@ -37,7 +37,7 @@ a8d1bcd6f62c6b813b77d3ff8959d8d2:.ocamlformat-ignore
 
 # begin context for CHANGES.md
 # file CHANGES.md
-873ca123aaa4f12aedad55595c52d1ea:CHANGES.md
+d56aaadd8e0fec3ee5e644de78212d04:CHANGES.md
 # end context for CHANGES.md
 
 # begin context for LICENSE.md
@@ -97,12 +97,12 @@ c8281f46ba9a11d0b61bc8ef67eaa357:docs/style.css
 
 # begin context for dune-project
 # file dune-project
-b877b563b3a1da795b26be4319d5dcc2:dune-project
+541e00af0f32fd619fcb9aca4e3ade30:dune-project
 # end context for dune-project
 
 # begin context for ez_hash.opam
 # file ez_hash.opam
-62344d70f0815962091e077cca95a645:ez_hash.opam
+adc64b244d25333acc55f7c38036f253:ez_hash.opam
 # end context for ez_hash.opam
 
 # begin context for scripts/after.sh
@@ -122,27 +122,27 @@ bb3a9d286f0dc64021db4194427263ee:scripts/copy-bin.sh
 
 # begin context for solidity-alcotest.opam
 # file solidity-alcotest.opam
-54623069b08f8d7342d62e5d21abf615:solidity-alcotest.opam
+f958c6503f3651e8e4859f3ee7763c9a:solidity-alcotest.opam
 # end context for solidity-alcotest.opam
 
 # begin context for solidity-common.opam
 # file solidity-common.opam
-42a80a0071000e29f533534d2e640113:solidity-common.opam
+f10218980e927b8cd0b2487e7f3de7b7:solidity-common.opam
 # end context for solidity-common.opam
 
 # begin context for solidity-parser.opam
 # file solidity-parser.opam
-c105f5cd63f7bdc137cacd90655d3960:solidity-parser.opam
+f5ff692dad3f98ac6ac96d1a29e88b8f:solidity-parser.opam
 # end context for solidity-parser.opam
 
 # begin context for solidity-test.opam
 # file solidity-test.opam
-386c907f168ab33fb2489810d9b8321d:solidity-test.opam
+133ababf9254e0141d3ef6f8fa311667:solidity-test.opam
 # end context for solidity-test.opam
 
 # begin context for solidity-typechecker.opam
 # file solidity-typechecker.opam
-4675cef4797ec67b1c5959d5973396db:solidity-typechecker.opam
+26a81559f44a76a7b2612c2e4fce13f4:solidity-typechecker.opam
 # end context for solidity-typechecker.opam
 
 # begin context for sphinx/_static/css/fixes.css
@@ -197,7 +197,7 @@ e86f9a67236dac57aaae3ca819cb7dbb:src/ocaml-solidity/package.toml
 
 # begin context for src/solidity-alcotest/version.mlt
 # file src/solidity-alcotest/version.mlt
-47d835b1b3ec0a463928fd2af319b6c0:src/solidity-alcotest/version.mlt
+4857ca979c211e298734d127807f6a09:src/solidity-alcotest/version.mlt
 # end context for src/solidity-alcotest/version.mlt
 
 # begin context for src/solidity-common/dune
@@ -217,7 +217,7 @@ e86f9a67236dac57aaae3ca819cb7dbb:src/ocaml-solidity/package.toml
 
 # begin context for src/solidity-common/version.mlt
 # file src/solidity-common/version.mlt
-47d835b1b3ec0a463928fd2af319b6c0:src/solidity-common/version.mlt
+4857ca979c211e298734d127807f6a09:src/solidity-common/version.mlt
 # end context for src/solidity-common/version.mlt
 
 # begin context for src/solidity-parser/dune
@@ -237,7 +237,7 @@ be413a351ddaf3cdf0d44e91ad35680e:src/solidity-parser/main.ml
 
 # begin context for src/solidity-parser/version.mlt
 # file src/solidity-parser/version.mlt
-47d835b1b3ec0a463928fd2af319b6c0:src/solidity-parser/version.mlt
+4857ca979c211e298734d127807f6a09:src/solidity-parser/version.mlt
 # end context for src/solidity-parser/version.mlt
 
 # begin context for src/solidity-test/dune
@@ -247,7 +247,7 @@ be413a351ddaf3cdf0d44e91ad35680e:src/solidity-parser/main.ml
 
 # begin context for src/solidity-test/version.mlt
 # file src/solidity-test/version.mlt
-47d835b1b3ec0a463928fd2af319b6c0:src/solidity-test/version.mlt
+4857ca979c211e298734d127807f6a09:src/solidity-test/version.mlt
 # end context for src/solidity-test/version.mlt
 
 # begin context for src/solidity-typechecker/dune
@@ -267,5 +267,5 @@ be413a351ddaf3cdf0d44e91ad35680e:src/solidity-parser/main.ml
 
 # begin context for src/solidity-typechecker/version.mlt
 # file src/solidity-typechecker/version.mlt
-47d835b1b3ec0a463928fd2af319b6c0:src/solidity-typechecker/version.mlt
+4857ca979c211e298734d127807f6a09:src/solidity-typechecker/version.mlt
 # end context for src/solidity-typechecker/version.mlt
diff --git a/CHANGES.md b/CHANGES.md
index c5fdf4b..172b1b5 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
 
-## v0.1.0 ( 2021-07-20 )
+## v0.1.0 ( 2021-07-22 )
 
 * Initial commit
diff --git a/drom.toml b/drom.toml
index c533612..dd716d3 100644
--- a/drom.toml
+++ b/drom.toml
@@ -15,7 +15,7 @@ license = "LGPL2"
 min-edition = "4.08.0"
 name = "ocaml-solidity"
 synopsis = "The ocaml-solidity project"
-version = "0.3.1"
+version = "0.3.2"
 
 # keys that you could also define:
 # odoc-target = "...odoc-target..."
diff --git a/dune-project b/dune-project
index 283682e..49f1ded 100644
--- a/dune-project
+++ b/dune-project
@@ -3,7 +3,7 @@
 (name ocaml-solidity)
 (allow_approximate_merlin)
 (generate_opam_files false)
-(version 0.3.1)
+(version 0.3.2)
 (formatting (enabled_for ocaml reason))
 (using menhir 2.0)
 
diff --git a/ez_hash.opam b/ez_hash.opam
index a95cf8b..2b60fa1 100644
--- a/ez_hash.opam
+++ b/ez_hash.opam
@@ -2,7 +2,7 @@
 # Do not modify, or add to the `skip` field of `drom.toml`.
 opam-version: "2.0"
 name: "ez_hash"
-version: "0.3.1"
+version: "0.3.2"
 license: "LGPL-2.1-only with OCaml-LGPL-linking-exception"
 synopsis: "Hash functions: sha3, sha256, blake2b"
 description: """
diff --git a/solidity-alcotest.opam b/solidity-alcotest.opam
index fcc9d9c..c59846f 100644
--- a/solidity-alcotest.opam
+++ b/solidity-alcotest.opam
@@ -2,7 +2,7 @@
 # Do not modify, or add to the `skip` field of `drom.toml`.
 opam-version: "2.0"
 name: "solidity-alcotest"
-version: "0.3.1"
+version: "0.3.2"
 license: "LGPL-2.1-only with OCaml-LGPL-linking-exception"
 synopsis: "The ocaml-solidity project"
 description: """
diff --git a/solidity-common.opam b/solidity-common.opam
index c4e7446..8cd3b9f 100644
--- a/solidity-common.opam
+++ b/solidity-common.opam
@@ -2,7 +2,7 @@
 # Do not modify, or add to the `skip` field of `drom.toml`.
 opam-version: "2.0"
 name: "solidity-common"
-version: "0.3.1"
+version: "0.3.2"
 license: "LGPL-2.1-only with OCaml-LGPL-linking-exception"
 synopsis: "The ocaml-solidity project"
 description: """
diff --git a/solidity-parser.opam b/solidity-parser.opam
index c2609c9..b6b6746 100644
--- a/solidity-parser.opam
+++ b/solidity-parser.opam
@@ -2,7 +2,7 @@
 # Do not modify, or add to the `skip` field of `drom.toml`.
 opam-version: "2.0"
 name: "solidity-parser"
-version: "0.3.1"
+version: "0.3.2"
 license: "LGPL-2.1-only with OCaml-LGPL-linking-exception"
 synopsis: "The ocaml-solidity project"
 description: """
diff --git a/solidity-test.opam b/solidity-test.opam
index ae7c6fc..ba017f1 100644
--- a/solidity-test.opam
+++ b/solidity-test.opam
@@ -2,7 +2,7 @@
 # Do not modify, or add to the `skip` field of `drom.toml`.
 opam-version: "2.0"
 name: "solidity-test"
-version: "0.3.1"
+version: "0.3.2"
 license: "LGPL-2.1-only with OCaml-LGPL-linking-exception"
 synopsis: "The ocaml-solidity project"
 description: """
diff --git a/solidity-typechecker.opam b/solidity-typechecker.opam
index 0c7e6fd..2050d49 100644
--- a/solidity-typechecker.opam
+++ b/solidity-typechecker.opam
@@ -2,7 +2,7 @@
 # Do not modify, or add to the `skip` field of `drom.toml`.
 opam-version: "2.0"
 name: "solidity-typechecker"
-version: "0.3.1"
+version: "0.3.2"
 license: "LGPL-2.1-only with OCaml-LGPL-linking-exception"
 synopsis: "The ocaml-solidity project"
 description: """
diff --git a/src/solidity-alcotest/version.mlt b/src/solidity-alcotest/version.mlt
index 1b5969f..4d66c71 100644
--- a/src/solidity-alcotest/version.mlt
+++ b/src/solidity-alcotest/version.mlt
@@ -13,7 +13,7 @@ let query cmd =
 
 let commit_hash = query "git show -s --pretty=format:%H"
 let commit_date = query "git show -s --pretty=format:%ci"
-let version = "0.3.1"
+let version = "0.3.2"
 let version =
   match commit_hash with
   | Some commit_hash ->
diff --git a/src/solidity-common/solidity_common.ml b/src/solidity-common/solidity_common.ml
index 2127917..7983e24 100644
--- a/src/solidity-common/solidity_common.ml
+++ b/src/solidity-common/solidity_common.ml
@@ -449,10 +449,10 @@ let string_of_pos (file, pos1, pos2)  =
       Buffer.contents b
     with _ -> ""
   in
-  Printf.sprintf "%s:%d-%d:%d-%d"
+  Printf.sprintf "%s:%d.%d-%d.%d"
     file
-    (fst pos1) (snd pos1)
-    (fst pos2) (snd pos2),
+    (fst pos1) (snd pos1+1)
+    (fst pos2) (snd pos2+1),
   source
 
 let set_annot n annot =
diff --git a/src/solidity-common/solidity_printer.ml b/src/solidity-common/solidity_printer.ml
index dea4c25..9f0bfa6 100644
--- a/src/solidity-common/solidity_printer.ml
+++ b/src/solidity-common/solidity_printer.ml
@@ -257,7 +257,7 @@ and variable_definition b indent ~freeton {
     var_mutability; var_override; var_init;
     var_static } =
   bprint b indent
-    (Format.sprintf "%s%s%s %s%s%s%s%s"
+    (Format.sprintf "%s%s%s%s %s%s%s%s"
        (string_of_type var_type)
        (if var_static then " static" else "")
        (if freeton then
@@ -266,10 +266,10 @@ and variable_definition b indent ~freeton {
           | m -> " " ^ (string_of_var_mutability m)
         else ""
        )
-       (string_of_ident var_name)
        (match var_visibility with
         | VInternal -> ""
         | v -> " " ^ (string_of_visibility v))
+       (string_of_ident var_name)
        (if freeton then ""
         else
           match var_mutability with
diff --git a/src/solidity-common/version.mlt b/src/solidity-common/version.mlt
index 1b5969f..4d66c71 100644
--- a/src/solidity-common/version.mlt
+++ b/src/solidity-common/version.mlt
@@ -13,7 +13,7 @@ let query cmd =
 
 let commit_hash = query "git show -s --pretty=format:%H"
 let commit_date = query "git show -s --pretty=format:%ci"
-let version = "0.3.1"
+let version = "0.3.2"
 let version =
   match commit_hash with
   | Some commit_hash ->
diff --git a/src/solidity-parser/version.mlt b/src/solidity-parser/version.mlt
index 1b5969f..4d66c71 100644
--- a/src/solidity-parser/version.mlt
+++ b/src/solidity-parser/version.mlt
@@ -13,7 +13,7 @@ let query cmd =
 
 let commit_hash = query "git show -s --pretty=format:%H"
 let commit_date = query "git show -s --pretty=format:%ci"
-let version = "0.3.1"
+let version = "0.3.2"
 let version =
   match commit_hash with
   | Some commit_hash ->
diff --git a/src/solidity-test/version.mlt b/src/solidity-test/version.mlt
index 1b5969f..4d66c71 100644
--- a/src/solidity-test/version.mlt
+++ b/src/solidity-test/version.mlt
@@ -13,7 +13,7 @@ let query cmd =
 
 let commit_hash = query "git show -s --pretty=format:%H"
 let commit_date = query "git show -s --pretty=format:%ci"
-let version = "0.3.1"
+let version = "0.3.2"
 let version =
   match commit_hash with
   | Some commit_hash ->
diff --git a/src/solidity-typechecker/solidity_checker_TYPES.ml b/src/solidity-typechecker/solidity_checker_TYPES.ml
index 60b007d..df0db87 100644
--- a/src/solidity-typechecker/solidity_checker_TYPES.ml
+++ b/src/solidity-typechecker/solidity_checker_TYPES.ml
@@ -135,12 +135,14 @@ and fun_kind =
   | KOther
   | KNewContract
   | KExtContractFun
+  | KReturn
 
 and function_options = {
   kind : fun_kind;
   value : bool;
   gas : bool;
   salt : bool;
+  fields : StringSet.t ;
 }
 
 and location =
diff --git a/src/solidity-typechecker/solidity_type_builder.ml b/src/solidity-typechecker/solidity_type_builder.ml
index 56e26eb..b160bea 100644
--- a/src/solidity-typechecker/solidity_type_builder.ml
+++ b/src/solidity-typechecker/solidity_type_builder.ml
@@ -31,7 +31,8 @@ let compute_selector pos ~library id args =
   Bytes.to_string (Bytes.sub (sha3kec (Bytes.of_string fun_sig)) 0 4)
 
 let new_fun_options = {
-  kind = KOther; value = false; gas = false; salt = false
+  kind = KOther; value = false; gas = false; salt = false ;
+  fields = StringSet.empty ;
 }
 
 let eval_array_length_exp env e =
diff --git a/src/solidity-typechecker/solidity_typechecker.ml b/src/solidity-typechecker/solidity_typechecker.ml
index 8119df0..7b87df1 100644
--- a/src/solidity-typechecker/solidity_typechecker.ml
+++ b/src/solidity-typechecker/solidity_typechecker.ml
@@ -567,6 +567,12 @@ let type_ident opt env base_t_opt id_node =
   set_annot id_node a;
   t, lv
 
+
+let type_options_ref = ref ( fun _ -> assert false )
+
+let type_options opt env pos is_payable fo opts =
+  !type_options_ref opt env pos is_payable fo opts
+
 let rec type_expression opt env exp : type_ =
   let t, _lv = type_expression_lv opt env exp in
   t
@@ -963,7 +969,7 @@ and expect_type pos ~expected ~provided =
       (Solidity_type_printer.string_of_type provided)
       (Solidity_type_printer.string_of_type expected)
 
-and type_options opt env pos is_payable fo opts =
+and type_options_fun opt env pos is_payable fo opts =
   List.fold_left (fun fo (id, e) ->
       let id = strip id in
       let fo, already_set =
@@ -993,51 +999,6 @@ and type_options opt env pos is_payable fo opts =
             error pos "Function call option \"%s\" can \
                        only be used with \"new\""
               (Ident.to_string id);
-            (* FREETON *)
-            (* TODO: check that mandatory fields are provided *)
-        | "pubkey", ( KNewContract | KExtContractFun )
-          when !for_freeton ->
-            expect_expression_type opt env e
-              ( TOptional (TUint 256));
-            fo, false (* TODO *)
-        | "code", KNewContract when !for_freeton ->
-            expect_expression_type opt env e (TAbstract TvmCell);
-            fo, false (* TODO *)
-        | "flag", ( KExtContractFun | KNewContract ) when !for_freeton ->
-            expect_expression_type opt env e (TUint 8);
-            fo, false (* TODO *)
-        | "varInit", KNewContract when !for_freeton ->
-            fo, false (* TODO *)
-        | "abiVer", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e (TUint 8);
-            fo, false (* TODO *)
-        | "extMsg", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e TBool ;
-            fo, false (* TODO *)
-        | "sign", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e TBool ;
-            fo, false (* TODO *)
-        | "bounce", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e TBool ;
-            fo, false (* TODO *)
-        | "stateInit", KNewContract when !for_freeton ->
-            expect_expression_type opt env e (TAbstract TvmCell) ;
-            fo, false (* TODO *)
-        | "wid", KNewContract when !for_freeton ->
-            expect_expression_type opt env e (TUint 8) ;
-            fo, false (* TODO *)
-        | "time", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e (TUint 64) ;
-            fo, false (* TODO *)
-        | "expire", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e (TUint 64) ;
-            fo, false (* TODO *)
-        | "callbackId", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e (TUint 64) ;
-            fo, false (* TODO *)
-        | "onErrorId", KExtContractFun when !for_freeton ->
-            expect_expression_type opt env e (TUint 64) ;
-            fo, false (* TODO *)
         | _, KOther ->
             error pos "Function call options can only be set on \
                        external function calls or contract creations"
@@ -1177,7 +1138,7 @@ let rec type_statement opt env s =
       in
       let is_payable = true in
       let fo = { Solidity_type_builder.new_fun_options
-                 with kind = KExtContractFun } in
+                 with kind = KReturn } in
       let _fo = type_options opt env pos is_payable fo opts in
       set_annot s (AType annot);
       begin
@@ -2168,3 +2129,6 @@ let type_program ?(init = Solidity_primitives.init) p =
     ) ordered_modules;
 
   {p with program_modules = ordered_modules}
+
+let () =
+  type_options_ref := type_options_fun
diff --git a/src/solidity-typechecker/solidity_typechecker.mli b/src/solidity-typechecker/solidity_typechecker.mli
index a14cb01..ed58735 100644
--- a/src/solidity-typechecker/solidity_typechecker.mli
+++ b/src/solidity-typechecker/solidity_typechecker.mli
@@ -16,3 +16,19 @@
 val type_program :
   ?init:(unit -> unit) ->
   Solidity_ast.program -> Solidity_ast.program
+
+
+val expect_expression_type :
+  Solidity_checker_TYPES.options ->
+  Solidity_checker_TYPES.env ->
+  Solidity_ast.expression -> Solidity_checker_TYPES.type_ -> unit
+
+val type_options_ref :
+  (Solidity_checker_TYPES.options ->
+   Solidity_checker_TYPES.env ->
+   Solidity_common.pos ->
+   bool ->
+   Solidity_checker_TYPES.function_options ->
+   (Solidity_ast.ident * Solidity_ast.expression) list ->
+   Solidity_checker_TYPES.function_options)
+    ref
diff --git a/src/solidity-typechecker/version.mlt b/src/solidity-typechecker/version.mlt
index 1b5969f..4d66c71 100644
--- a/src/solidity-typechecker/version.mlt
+++ b/src/solidity-typechecker/version.mlt
@@ -13,7 +13,7 @@ let query cmd =
 
 let commit_hash = query "git show -s --pretty=format:%H"
 let commit_date = query "git show -s --pretty=format:%ci"
-let version = "0.3.1"
+let version = "0.3.2"
 let version =
   match commit_hash with
   | Some commit_hash ->