adamc@1278: (* Copyright (c) 2008-2010, Adam Chlipala
adamc@38:  * All rights reserved.
adamc@38:  *
adamc@38:  * Redistribution and use in source and binary forms, with or without
adamc@38:  * modification, are permitted provided that the following conditions are met:
adamc@38:  *
adamc@38:  * - Redistributions of source code must retain the above copyright notice,
adamc@38:  *   this list of conditions and the following disclaimer.
adamc@38:  * - Redistributions in binary form must reproduce the above copyright notice,
adamc@38:  *   this list of conditions and the following disclaimer in the documentation
adamc@38:  *   and/or other materials provided with the distribution.
adamc@38:  * - The names of contributors may not be used to endorse or promote products
adamc@38:  *   derived from this software without specific prior written permission.
adamc@38:  *
adamc@38:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@38:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@38:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@38:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@38:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
adamc@38:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@38:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@38:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@38:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@38:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@38:  * POSSIBILITY OF SUCH DAMAGE.
adamc@38:  *)
adamc@38: 
adamc@38: signature EXPL_ENV = sig
adamc@38: 
adamc@38:     exception SynUnif
adamc@38:     val liftConInCon : int -> Expl.con -> Expl.con
adamc@38: 
adamc@38:     type env
adamc@38: 
adamc@38:     val empty : env
adamc@38: 
adamc@38:     exception UnboundRel of int
adamc@38:     exception UnboundNamed of int
adamc@38: 
adamc@38:     datatype 'a var =
adamc@38:              NotBound
adamc@38:            | Rel of int * 'a
adamc@38:            | Named of int * 'a
adamc@38: 
adamc@624:     val pushKRel : env -> string -> env
adamc@624:     val lookupKRel : env -> int -> string
adamc@624: 
adamc@38:     val pushCRel : env -> string -> Expl.kind -> env
adamc@38:     val lookupCRel : env -> int -> string * Expl.kind
adamc@38: 
adamc@38:     val pushCNamed : env -> string -> int -> Expl.kind -> Expl.con option -> env
adamc@38:     val lookupCNamed : env -> int -> string * Expl.kind * Expl.con option
adamc@38: 
adamc@38:     val pushERel : env -> string -> Expl.con -> env
adamc@38:     val lookupERel : env -> int -> string * Expl.con
adamc@38: 
adamc@38:     val pushENamed : env -> string -> int -> Expl.con -> env
adamc@38:     val lookupENamed : env -> int -> string * Expl.con
adamc@38: 
adamc@38:     val pushSgnNamed : env -> string -> int -> Expl.sgn -> env
adamc@38:     val lookupSgnNamed : env -> int -> string * Expl.sgn
adamc@38: 
adamc@38:     val pushStrNamed : env -> string -> int -> Expl.sgn -> env
adamc@38:     val lookupStrNamed : env -> int -> string * Expl.sgn
adamc@38: 
adamc@38:     val declBinds : env -> Expl.decl -> env
adamc@38:     val sgiBinds : env -> Expl.sgn_item -> env
adamc@38: 
adamc@1278:     val patBinds : env -> Expl.pat -> env
adamc@1278: 
adamc@38: end