adamc@16: (* Copyright (c) 2008, Adam Chlipala
adamc@16:  * All rights reserved.
adamc@16:  *
adamc@16:  * Redistribution and use in source and binary forms, with or without
adamc@16:  * modification, are permitted provided that the following conditions are met:
adamc@16:  *
adamc@16:  * - Redistributions of source code must retain the above copyright notice,
adamc@16:  *   this list of conditions and the following disclaimer.
adamc@16:  * - Redistributions in binary form must reproduce the above copyright notice,
adamc@16:  *   this list of conditions and the following disclaimer in the documentation
adamc@16:  *   and/or other materials provided with the distribution.
adamc@16:  * - The names of contributors may not be used to endorse or promote products
adamc@16:  *   derived from this software without specific prior written permission.
adamc@16:  *
adamc@16:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@16:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@16:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@16:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@16:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
adamc@16:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@16:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@16:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@16:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@16:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@16:  * POSSIBILITY OF SUCH DAMAGE.
adamc@16:  *)
adamc@16: 
adamc@16: signature CORE_UTIL = sig
adamc@16: 
adamc@16: structure Kind : sig
adamc@16:     val mapfold : (Core.kind', 'state, 'abort) Search.mapfolder
adamc@16:                   -> (Core.kind, 'state, 'abort) Search.mapfolder
adamc@16:     val map : (Core.kind' -> Core.kind') -> Core.kind -> Core.kind
adamc@16:     val exists : (Core.kind' -> bool) -> Core.kind -> bool
adamc@16: end
adamc@16: 
adamc@16: structure Con : sig
adamc@16:     datatype binder =
adamc@16:              Rel of string * Core.kind
adamc@16:            | Named of string * Core.kind
adamc@16: 
adamc@16:     val mapfoldB : {kind : (Core.kind', 'state, 'abort) Search.mapfolder,
adamc@16:                     con : ('context, Core.con', 'state, 'abort) Search.mapfolderB,
adamc@16:                     bind : 'context * binder -> 'context}
adamc@16:                    -> ('context, Core.con, 'state, 'abort) Search.mapfolderB
adamc@16:     val mapfold : {kind : (Core.kind', 'state, 'abort) Search.mapfolder,
adamc@16:                    con : (Core.con', 'state, 'abort) Search.mapfolder}
adamc@16:                   -> (Core.con, 'state, 'abort) Search.mapfolder
adamc@16: 
adamc@16:     val map : {kind : Core.kind' -> Core.kind',
adamc@16:                con : Core.con' -> Core.con'}
adamc@16:               -> Core.con -> Core.con
adamc@16: 
adamc@16:     val mapB : {kind : Core.kind' -> Core.kind',
adamc@16:                 con : 'context -> Core.con' -> Core.con',
adamc@16:                 bind : 'context * binder -> 'context}
adamc@16:                -> 'context -> (Core.con -> Core.con)
adamc@16:     val exists : {kind : Core.kind' -> bool,
adamc@16:                   con : Core.con' -> bool} -> Core.con -> bool
adamc@16: end
adamc@16: 
adamc@16: structure Exp : sig
adamc@16:     datatype binder =
adamc@16:              RelC of string * Core.kind
adamc@16:            | NamedC of string * Core.kind
adamc@16:            | RelE of string * Core.con
adamc@16:            | NamedE of string * Core.con
adamc@16: 
adamc@16:     val mapfoldB : {kind : (Core.kind', 'state, 'abort) Search.mapfolder,
adamc@16:                     con : ('context, Core.con', 'state, 'abort) Search.mapfolderB,
adamc@16:                     exp : ('context, Core.exp', 'state, 'abort) Search.mapfolderB,
adamc@16:                     bind : 'context * binder -> 'context}
adamc@16:                    -> ('context, Core.exp, 'state, 'abort) Search.mapfolderB
adamc@16:     val mapfold : {kind : (Core.kind', 'state, 'abort) Search.mapfolder,
adamc@16:                    con : (Core.con', 'state, 'abort) Search.mapfolder,
adamc@16:                    exp : (Core.exp', 'state, 'abort) Search.mapfolder}
adamc@16:                   -> (Core.exp, 'state, 'abort) Search.mapfolder
adamc@16: 
adamc@16:     val map : {kind : Core.kind' -> Core.kind',
adamc@16:                con : Core.con' -> Core.con',
adamc@16:                exp : Core.exp' -> Core.exp'}
adamc@16:               -> Core.exp -> Core.exp
adamc@16:     val exists : {kind : Core.kind' -> bool,
adamc@16:                   con : Core.con' -> bool,
adamc@16:                   exp : Core.exp' -> bool} -> Core.exp -> bool
adamc@16: end
adamc@16: 
adamc@16: end