adamc@38: (* Copyright (c) 2008, 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_UTIL = sig
adamc@38: 
adamc@38: structure Kind : sig
adamc@624:     val mapfoldB : {kind : ('context, Expl.kind', 'state, 'abort) Search.mapfolderB,
adamc@624:                     bind : 'context * string -> 'context}
adamc@624:                    -> ('context, Expl.kind, 'state, 'abort) Search.mapfolderB
adamc@38:     val mapfold : (Expl.kind', 'state, 'abort) Search.mapfolder
adamc@38:                   -> (Expl.kind, 'state, 'abort) Search.mapfolder
adamc@38:     val exists : (Expl.kind' -> bool) -> Expl.kind -> bool
adamc@624:     val mapB : {kind : 'context -> Expl.kind' -> Expl.kind',
adamc@624:                 bind : 'context * string -> 'context}
adamc@624:                -> 'context -> (Expl.kind -> Expl.kind)
adamc@38: end
adamc@38: 
adamc@38: structure Con : sig
adamc@38:     datatype binder =
adamc@624:              RelK of string
adamc@624:            | RelC of string * Expl.kind
adamc@624:            | NamedC of string * Expl.kind
adamc@38: 
adamc@624:     val mapfoldB : {kind : ('context, Expl.kind', 'state, 'abort) Search.mapfolderB,
adamc@38:                     con : ('context, Expl.con', 'state, 'abort) Search.mapfolderB,
adamc@38:                     bind : 'context * binder -> 'context}
adamc@38:                    -> ('context, Expl.con, 'state, 'abort) Search.mapfolderB
adamc@38:     val mapfold : {kind : (Expl.kind', 'state, 'abort) Search.mapfolder,
adamc@38:                    con : (Expl.con', 'state, 'abort) Search.mapfolder}
adamc@38:                   -> (Expl.con, 'state, 'abort) Search.mapfolder
adamc@38: 
adamc@624:     val mapB : {kind : 'context -> Expl.kind' -> Expl.kind',
adamc@38:                 con : 'context -> Expl.con' -> Expl.con',
adamc@38:                 bind : 'context * binder -> 'context}
adamc@38:                -> 'context -> (Expl.con -> Expl.con)
adamc@38:     val map : {kind : Expl.kind' -> Expl.kind',
adamc@38:                con : Expl.con' -> Expl.con'}
adamc@38:               -> Expl.con -> Expl.con
adamc@38:     val exists : {kind : Expl.kind' -> bool,
adamc@38:                   con : Expl.con' -> bool} -> Expl.con -> bool
adamc@38: end
adamc@38: 
adamc@38: structure Exp : sig
adamc@38:     datatype binder =
adamc@624:              RelK of string
adamc@624:            | RelC of string * Expl.kind
adamc@38:            | NamedC of string * Expl.kind
adamc@38:            | RelE of string * Expl.con
adamc@38:            | NamedE of string * Expl.con
adamc@38: 
adamc@624:     val mapfoldB : {kind : ('context, Expl.kind', 'state, 'abort) Search.mapfolderB,
adamc@38:                     con : ('context, Expl.con', 'state, 'abort) Search.mapfolderB,
adamc@38:                     exp : ('context, Expl.exp', 'state, 'abort) Search.mapfolderB,
adamc@38:                     bind : 'context * binder -> 'context}
adamc@38:                    -> ('context, Expl.exp, 'state, 'abort) Search.mapfolderB
adamc@38:     val mapfold : {kind : (Expl.kind', 'state, 'abort) Search.mapfolder,
adamc@38:                    con : (Expl.con', 'state, 'abort) Search.mapfolder,
adamc@38:                    exp : (Expl.exp', 'state, 'abort) Search.mapfolder}
adamc@38:                   -> (Expl.exp, 'state, 'abort) Search.mapfolder
adamc@38:     val exists : {kind : Expl.kind' -> bool,
adamc@38:                   con : Expl.con' -> bool,
adamc@38:                   exp : Expl.exp' -> bool} -> Expl.exp -> bool
adamc@38: end
adamc@38: 
adamc@38: structure Sgn : sig
adamc@38:     datatype binder =
adamc@624:              RelK of string
adamc@624:            | RelC of string * Expl.kind
adamc@38:            | NamedC of string * Expl.kind
adamc@64:            | Sgn of string * Expl.sgn
adamc@38:            | Str of string * Expl.sgn
adamc@38: 
adamc@624:     val mapfoldB : {kind : ('context, Expl.kind', 'state, 'abort) Search.mapfolderB,
adamc@38:                     con : ('context, Expl.con', 'state, 'abort) Search.mapfolderB,
adamc@38:                     sgn_item : ('context, Expl.sgn_item', 'state, 'abort) Search.mapfolderB,
adamc@38:                     sgn : ('context, Expl.sgn', 'state, 'abort) Search.mapfolderB,
adamc@38:                     bind : 'context * binder -> 'context}
adamc@38:                    -> ('context, Expl.sgn, 'state, 'abort) Search.mapfolderB
adamc@38: 
adamc@38: 
adamc@38:     val mapfold : {kind : (Expl.kind', 'state, 'abort) Search.mapfolder,
adamc@38:                    con : (Expl.con', 'state, 'abort) Search.mapfolder,
adamc@38:                    sgn_item : (Expl.sgn_item', 'state, 'abort) Search.mapfolder,
adamc@38:                    sgn : (Expl.sgn', 'state, 'abort) Search.mapfolder}
adamc@38:                   -> (Expl.sgn, 'state, 'abort) Search.mapfolder
adamc@38: 
adamc@38:     val map : {kind : Expl.kind' -> Expl.kind',
adamc@38:                con : Expl.con' -> Expl.con',
adamc@38:                sgn_item : Expl.sgn_item' -> Expl.sgn_item',
adamc@38:                sgn : Expl.sgn' -> Expl.sgn'}
adamc@38:               -> Expl.sgn -> Expl.sgn
adamc@38: 
adamc@38: end
adamc@38: 
adamc@38: end