  Copyright ( C ) 2015-   , Authors of ReScript 
  * 
  * This program is free software : you can redistribute it and/or modify 
  * it under the terms of the GNU Lesser General Public License as published by 
  * the Free Software Foundation , either version 3 of the License , or 
  * ( at your option ) any later version . 
  * 
  * In addition to the permissions granted to you by the LGPL , you may combine 
  * or link a " work that uses the Library " with a publicly distributed version 
  * of this file to produce a combined library or application , then distribute 
  * that combined work under the terms of your choosing , with no requirement 
  * to comply with the obligations normally placed on you by section 4 of the 
  * LGPL version 3 ( or the corresponding section of a later version of the LGPL 
  * should you choose to use a later version ) . 
  * 
  * This program is distributed in the hope that it will be useful , 
  * but WITHOUT ANY WARRANTY ; without even the implied warranty of 
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE .   See the 
  * GNU Lesser General Public License for more details . 
  * 
  * You should have received a copy of the GNU Lesser General Public License 
  * along with this program ; if not , write to the Free Software 
  * Foundation , Inc. , 59 Temple Place - Suite 330 , Boston , MA 02111 - 1307 , USA .
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * In addition to the permissions granted to you by the LGPL, you may combine
 * or link a "work that uses the Library" with a publicly distributed version
 * of this file to produce a combined library or application, then distribute
 * that combined work under the terms of your choosing, with no requirement
 * to comply with the obligations normally placed on you by section 4 of the
 * LGPL version 3 (or the corresponding section of a later version of the LGPL
 * should you choose to use a later version).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *)

let init_path () =
  let dirs = !Clflags.include_dirs in
  let exp_dirs =
    List.map (Misc.expand_directory Config.standard_library) dirs
  in
  Config.load_path := List.rev_append exp_dirs [];
  Env.reset_cache ()

(* Return the initial environment in which compilation proceeds. *)

(* Note: do not do init_path() in initial_env, this breaks
   toplevel initialization (PR#1775) *)

let open_implicit_module m env =
  let lid =
    { Asttypes.loc = Location.in_file "command line"; txt = Longident.parse m }
  in
  snd (Typemod.type_open_ Override env lid.loc lid)

let initial_env () =
  Ident.reinit ();
  let initial = Env.initial_safe_string in
  let env =
    if !Clflags.nopervasives then initial
    else open_implicit_module "Pervasives" initial
  in
  List.fold_left
    (fun env m -> open_implicit_module m env)
    env
    (List.rev !Clflags.open_modules)

 Return the initial environment in which compilation proceeds. 
 Note: do not do init_path() in initial_env, this breaks
   toplevel initialization (PR#1775) 
  Copyright ( C ) 2015-   , Authors of ReScript 
  * 
  * This program is free software : you can redistribute it and/or modify 
  * it under the terms of the GNU Lesser General Public License as published by 
  * the Free Software Foundation , either version 3 of the License , or 
  * ( at your option ) any later version . 
  * 
  * In addition to the permissions granted to you by the LGPL , you may combine 
  * or link a " work that uses the Library " with a publicly distributed version 
  * of this file to produce a combined library or application , then distribute 
  * that combined work under the terms of your choosing , with no requirement 
  * to comply with the obligations normally placed on you by section 4 of the 
  * LGPL version 3 ( or the corresponding section of a later version of the LGPL 
  * should you choose to use a later version ) . 
  * 
  * This program is distributed in the hope that it will be useful , 
  * but WITHOUT ANY WARRANTY ; without even the implied warranty of 
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE .   See the 
  * GNU Lesser General Public License for more details . 
  * 
  * You should have received a copy of the GNU Lesser General Public License 
  * along with this program ; if not , write to the Free Software 
  * Foundation , Inc. , 59 Temple Place - Suite 330 , Boston , MA 02111 - 1307 , USA .
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * In addition to the permissions granted to you by the LGPL, you may combine
 * or link a "work that uses the Library" with a publicly distributed version
 * of this file to produce a combined library or application, then distribute
 * that combined work under the terms of your choosing, with no requirement
 * to comply with the obligations normally placed on you by section 4 of the
 * LGPL version 3 (or the corresponding section of a later version of the LGPL
 * should you choose to use a later version).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *)

let init_path () =
  let dirs = !Clflags.include_dirs in
  let exp_dirs =
    List.map (Misc.expand_directory Config.standard_library) dirs
  in
  Config.load_path := List.rev_append exp_dirs [];
  Env.reset_cache ()



let open_implicit_module m env =
  let lid =
    { Asttypes.loc = Location.in_file "command line"; txt = Longident.parse m }
  in
  snd (Typemod.type_open_ Override env lid.loc lid)

let initial_env () =
  Ident.reinit ();
  let initial = Env.initial_safe_string in
  let env =
    if !Clflags.nopervasives then initial
    else open_implicit_module "Pervasives" initial
  in
  List.fold_left
    (fun env m -> open_implicit_module m env)
    env
    (List.rev !Clflags.open_modules)
