(*
    Copyright (c) 2013 David C.J. Matthews

    This library 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 2.1 of the License, or (at your option) any later version.
    
    This library 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 library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*)

signature ExportParsetreeSig =
sig
    type lexan
    type parsetree
    type matchtree
    type locationProp
    type ptProperties

    type location =
        { file: string, startLine: FixedInt.int, startPosition: FixedInt.int,
          endLine: FixedInt.int, endPosition: FixedInt.int }

    type exportTree = location * ptProperties list

    type navigation =
        {parent: (unit -> exportTree) option,
         next: (unit -> exportTree) option,
         previous: (unit -> exportTree) option}

    val getExportTree: navigation * parsetree -> exportTree

    val getLocation: parsetree -> location
    val declaredAt: locationProp list -> location
     
    structure Sharing:
    sig
        type lexan = lexan
        and  parsetree = parsetree
        and  matchtree = matchtree
        and  locationProp = locationProp
        and  ptProperties = ptProperties
    end
end;
