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[smlnj] View of /sml/trunk/src/compiler/Semant/basics/sympaths.sig
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View of /sml/trunk/src/compiler/Semant/basics/sympaths.sig

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Revision 249 - (download) (as text) (annotate)
Sat Apr 17 18:57:03 1999 UTC (21 years, 5 months ago) by monnier
Original Path: sml/branches/SMLNJ/src/compiler/Semant/basics/sympaths.sig
File size: 976 byte(s)
version 110.16
(* Copyright 1996 by AT&T Bell Laboratories *)
(* sympaths.sig *)

signature SYMPATH =
sig
  datatype path = SPATH of Symbol.symbol list
  val empty : path
  val null : path -> bool
  val extend : path * Symbol.symbol -> path
  val prepend : Symbol.symbol * path -> path
  val append : path * path -> path
  val first : path -> Symbol.symbol
  val rest : path -> path
  val length : path -> int
  val last : path -> Symbol.symbol
  val equal : path * path -> bool
  val toString : path -> string
end

signature INVPATH =
sig
  datatype path = IPATH of Symbol.symbol list
  val empty : path
  val null : path -> bool
  val extend: path * Symbol.symbol -> path
  val append: path * path -> path
  val last: path -> Symbol.symbol
  val lastPrefix: path -> path
  val equal : path * path -> bool
  val toString : path -> string
end

signature CONVERTPATHS =
sig
  type spath
  type ipath
  val invertSPath : spath -> ipath
  val invertIPath : ipath -> spath
end


(*
 * $Log$
 *)

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